Monday 5 January 2026 - Monthly Climate Summary for Greater Sydney - Product code IDCKGC15L0
Greater Sydney in December 2025
Rainfall
- Rainfall totals for December were below average at most sites across Greater Sydney.
- December rainfall totals ranged from around 30% to around 150% of average across Greater Sydney.
Temperature
- Mean maximum temperatures for December at all sites across Greater Sydney were above average.
- December mean maximum temperatures for Greater Sydney ranged from 0.6 °C above average at Sydney Harbour (Wedding Cake West) to 2.3 °C above average at Sydney Airport AMO.
- Mean minimum temperatures for December at most sites across Greater Sydney were around average.
- December mean minimum temperatures for Greater Sydney ranged from 1.2 °C below average at Holsworthy Aerodrome AWS to 0.6 °C above average at Parramatta North (Masons Drive) and Sydney Airport AMO.
- Sydney Harbour (Wedding Cake West) had its warmest December night (highest daily minimum temperature) on record.
Sydney (Observatory Hill)
- Total rainfall for Sydney (Observatory Hill) was 19.0 mm.
- The mean daily maximum temperature for Sydney (Observatory Hill) was 28.3 °C.
- The warmest day was 42.2 °C on the 19th, and the coolest day was on the 26th when the temperature reached 18.7 °C.
- The mean daily minimum temperature for Sydney (Observatory Hill) was 18.1 °C.
- The coldest morning was 13.3 °C on the 2nd, and the warmest morning was on the 22nd when the minimum temperature was 23.4 °C.
Extremes Records Summaries Daily observations Important notes the top
| Extremes in December 2025 | |
|---|---|
| Hottest day |
43.0 °C at Holsworthy Defence AWS on the 19th |
| Warmest days on average |
31.1 °C at Richmond RAAF 31.1 °C at Penrith Lakes AWS |
| Coolest days on average |
24.2 °C at Sydney Harbour (Wedding Cake West) |
| Coldest day |
10.5 °C at Katoomba (Farnells Rd) on the 26th |
| Coldest night |
3.4 °C at Mount Boyce AWS on the 2nd |
| Coolest nights on average |
11.6 °C at Katoomba (Farnells Rd) |
| Warmest nights on average |
18.8 °C at Sydney Harbour (Wedding Cake West) |
| Warmest night |
25.2 °C at Cooranbong (Lake Macquarie AWS) on the 22nd |
| Warmest on average overall |
23.9 °C at Penrith Lakes AWS |
| Coolest on average overall |
18.0 °C at Mount Boyce AWS |
| Wettest overall |
145.8 mm at Yarramalong (Lewensbrook) |
| Wettest day |
73.6 mm at Norah Head AWS on the 12th |
| Strongest wind gust |
113.0 km/h at Wattamolla AWS on the 14th |
Extremes Records Summaries Daily observations Important notes the top
| Record highest December daily minimum temperature | ||||||
|---|---|---|---|---|---|---|
| New record (°C) |
Old record |
Years of record |
Average for December |
|||
| Sydney Harbour (Wedding Cake West) | 24.1 | on the 22nd | 24.0 | on 22 Dec 1997 | 24 | 18.9 |
Extremes Records Summaries Daily observations Important notes the top
| Summary statistics for December 2025 | ||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Maximum temperatures (°C) |
Minimum temperatures (°C) |
Rainfall (millimetres) |
||||||||||
| Mean for December 2025 |
Diff from average |
Highest for December 2025 |
Mean for December 2025 |
Diff from average |
Lowest for December 2025 |
Total for December 2025 |
Average for December |
Rank of December 2025 |
Fraction of December average |
|||
| Badgerys Creek AWS | 30.8 | +2.1 | 41.9 | 6th | 15.0 | -0.5 | 8.1 | 1st | 54.0 | 55.9 | average | 97% |
| Bankstown Airport AWS | 29.8 | +2.2 | 42.0 | 19th | 16.6 | -0.2 | 9.7 | 1st | 36.6 | 66.9 | average | 55% |
| Camden Airport AWS | 30.2 | +1.5 | 41.2 | 6th | 15.0 | -0.3 | 6.9 | 1st | 37.6 | 57.4 | average | 66% |
| Campbelltown (Mount Annan) | 30.0 | +1.6 | 42.2 | 19th | 15.0 | -0.3 | 7.4 | 1st | 33.0 | 60.9 | low | 54% |
| Canterbury Racecourse AWS | 28.0 | +1.4 | 42.0 | 19th | 16.2 | -0.7 | 9.7 | 1st | 26.4 | 64.8 | low | 41% |
| Cooranbong (Lake Macquarie AWS) | 28.1 | +0.6 | 40.9 | 21st | 15.6 | -0.5 | 8.8 | 27th | 117.0 | 84.7 | high | 138% |
| Gosford AWS | 28.1 | +1.0 | 42.0 | 6th | 16.7 | -0.8 | 9.6 | 27th | 57.4 | 75.7 | average | 76% |
| Holsworthy Aerodrome AWS | 29.0 | +0.7 | 41.2 | 19th | 15.4 | -1.2 | 9.1 | 3rd | 25.4 | 56.4 | v low | 45% |
| Holsworthy Defence AWS | 29.3 | 43.0 | 19th | 14.8 | 8.4 | 1st | 46.4 | |||||
| Horsley Park Equestrian Centre AWS | 29.7 | +1.3 | 41.0 | 19th | 15.8 | -0.4 | 9.6 | 3rd | 48.8 | 66.2 | average | 74% |
| Katoomba (Farnells Rd) | 24.5 | +1.9 | 33.5 | 19th | 11.6 | -0.2 | 5.0 | 27th | 70.1 | 120.7 | average | 58% |
| Mangrove Mountain AWS | 28.6 | +2.0 | 41.0 | 21st | 14.6 | -0.8 | 7.0 | 27th | 81.6 | 85.0 | average | 96% |
| Mount Boyce AWS | 24.4 | +1.6 | 33.3 | 19th | 11.7 | 0.0 | 3.4 | 2nd | 44.2 | 84.6 | low | 52% |
| Norah Head AWS | 26.5 | +1.3 | 37.3 | 6th | 18.3 | -0.2 | 13.6 | 27th | 101.2 | 68.7 | high | 147% |
| Parramatta North (Masons Drive) | 29.3 | +1.7 | 41.5 | 19th | 16.9 | +0.6 | 10.0 | 1st | 23.8 | 71.2 | low | 33% |
| Penrith Lakes AWS | 31.1 | +1.3 | 41.9 | 19th | 16.7 | -0.4 | 11.3 | 1st | 39.6 | 64.1 | average | 62% |
| Richmond RAAF | 31.1 | +2.0 | 42.0 | 19th | 16.2 | 0.0 | 9.6 | 2nd | 57.0 | 63.9 | average | 89% |
| Sydney (Observatory Hill) | 28.3 | 42.2 | 19th | 18.1 | 13.3 | 2nd | 19.0 | |||||
| Sydney Airport AMO | 28.3 | +2.3 | 42.6 | 19th | 18.3 | +0.6 | 13.4 | 2nd | 21.4 | 73.0 | low | 29% |
| Sydney Harbour (Wedding Cake West) | 24.2 | +0.6 | 37.7 | 19th | 19.0 | +0.1 | 14.2 | 2nd | ||||
| Sydney Olympic Park AWS (Archery Centre) | 29.5 | +1.7 | 42.7 | 19th | 17.0 | -0.6 | 11.4 | 1st | 32.6 | 72.9 | low | 45% |
| Terrey Hills AWS | 26.7 | +1.1 | 40.2 | 19th | 16.4 | -0.3 | 11.3 | 27th | 46.6 | 84.8 | low | 55% |
Extremes Records Summaries Daily observations Important notes the top
| Daily maximum temperatures for December 2025 | |||||||||||||||||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 | 9 | 10 | 11 | 12 | 13 | 14 | 15 | 16 | 17 | 18 | 19 | 20 | 21 | 22 | 23 | 24 | 25 | 26 | 27 | 28 | 29 | 30 | 31 | |
| Badgerys Creek AWS | 25.1 | 25.3 | 31.2 | 36.0 | 40.3 | 41.9 | 25.3 | 31.3 | 37.5 | 30.0 | 24.2 | 24.6 | 30.7 | 34.5 | 27.3 | 22.3 | 31.2 | 39.2 | 41.6 | 33.9 | 38.7 | 34.1 | 33.3 | 35.6 | 25.7 | 18.7 | 25.2 | 25.0 | 27.5 | 30.1 | 27.0 |
| Bankstown Airport AWS | 25.2 | 23.0 | 29.8 | 34.9 | 39.1 | 40.8 | 23.6 | 29.2 | 36.3 | 27.5 | 25.8 | 23.4 | 30.0 | 34.7 | 25.3 | 22.5 | 28.9 | 37.6 | 42.0 | 34.8 | 38.6 | 32.1 | 33.5 | 34.9 | 24.0 | 19.9 | 23.0 | 24.4 | 25.2 | 27.4 | 25.3 |
| Camden Airport AWS | 24.2 | 24.4 | 30.4 | 35.9 | 39.0 | 41.2 | 25.2 | 30.5 | 37.5 | 29.7 | 24.9 | 25.3 | 29.6 | 33.7 | 26.4 | 21.6 | 30.7 | 38.6 | 41.1 | 34.1 | 37.0 | 32.3 | 32.6 | 35.0 | 25.1 | 19.9 | 24.7 | 24.1 | 26.7 | 30.0 | 26.1 |
| Campbelltown (Mount Annan) | 24.2 | 23.7 | 30.2 | 35.0 | 38.8 | 40.7 | 24.6 | 30.5 | 37.1 | 29.9 | 25.7 | 25.2 | 30.1 | 33.3 | 25.9 | 21.4 | 30.4 | 38.9 | 42.2 | 34.2 | 36.8 | 31.9 | 32.5 | 34.9 | 24.6 | 20.0 | 23.7 | 24.0 | 26.1 | 29.5 | 25.5 |
| Canterbury Racecourse AWS | 24.4 | 21.0 | 26.4 | 32.1 | 37.2 | 38.8 | 21.9 | 26.4 | 34.8 | 25.1 | 23.5 | 22.1 | 26.5 | 34.1 | 24.0 | 22.4 | 26.7 | 33.6 | 42.0 | 33.1 | 37.9 | 31.4 | 32.5 | 32.9 | 22.5 | 18.9 | 21.3 | 22.5 | 22.7 | 25.4 | 24.0 |
| Cooranbong (Lake Macquarie AWS) | 26.3 | 22.9 | 25.8 | 32.5 | 37.8 | 40.6 | 23.3 | 26.4 | 34.0 | 27.4 | 22.2 | 23.4 | 25.9 | 35.0 | 24.7 | 22.2 | 25.7 | 33.9 | 40.9 | 30.9 | 40.9 | 28.4 | 30.6 | 28.3 | 24.8 | 18.7 | 22.0 | 22.8 | 23.9 | 24.4 | 23.8 |
| Gosford AWS | 25.9 | 21.7 | 26.4 | 32.2 | 38.1 | 42.0 | 22.4 | 27.1 | 32.4 | 25.6 | 22.4 | 22.4 | 26.2 | 34.9 | 24.3 | 23.7 | 26.6 | 34.0 | 41.9 | 31.4 | 40.7 | 29.4 | 31.8 | 29.6 | 23.3 | 18.5 | 21.9 | 22.6 | 23.5 | 24.6 | 24.8 |
| Holsworthy Aerodrome AWS | 23.9 | 22.1 | 29.2 | 34.2 | 39.0 | 40.5 | 23.0 | 28.8 | 35.6 | 27.9 | 25.0 | 23.3 | 28.6 | 33.4 | 23.9 | 21.8 | 27.8 | 37.8 | 41.2 | 34.0 | 38.2 | 31.4 | 32.2 | 34.7 | 23.6 | 18.8 | 22.1 | 23.3 | 24.2 | 26.4 | 24.4 |
| Holsworthy Defence AWS | 24.6 | 21.4 | 30.5 | 35.8 | 40.6 | 41.5 | 22.1 | 30.3 | 36.6 | 27.2 | 22.5 | 22.8 | 29.1 | 34.0 | 23.6 | 22.7 | 30.4 | 39.3 | 43.0 | 34.1 | 37.9 | 32.0 | 32.0 | 35.6 | 21.9 | 18.3 | 22.1 | 21.9 | 23.5 | 28.1 | 24.1 |
| Horsley Park Equestrian Centre AWS | 24.9 | 23.2 | 29.3 | 34.9 | 39.0 | 40.8 | 23.8 | 29.9 | 36.3 | 28.2 | 23.4 | 23.4 | 30.0 | 34.2 | 25.4 | 22.3 | 29.8 | 38.8 | 41.0 | 32.9 | 38.7 | 32.5 | 32.9 | 34.9 | 24.3 | 18.2 | 23.1 | 24.0 | 25.3 | 28.4 | 25.7 |
| Katoomba (Farnells Rd) | 24.9 | 28.4 | 31.8 | 32.2 | 32.1 | 26.1 | 14.7 | 19.0 | 25.0 | 24.2 | 21.9 | 15.4 | 33.5 | 28.8 | 26.0 | 26.5 | 23.0 | 10.5 | 17.5 | 17.6 | 22.0 | 27.2 | 22.2 | ||||||||
| Mangrove Mountain AWS | 26.7 | 23.7 | 29.9 | 35.5 | 39.2 | 40.3 | 21.3 | 29.2 | 36.9 | 27.3 | 20.6 | 22.9 | 28.3 | 34.1 | 25.3 | 22.3 | 28.3 | 37.1 | 41.0 | 30.6 | 33.2 | 32.2 | 25.1 | 17.5 | 21.7 | 22.1 | 24.1 | 26.4 | 24.3 | ||
| Mount Boyce AWS | 13.2 | 17.6 | 23.6 | 28.0 | 31.0 | 32.3 | 24.2 | 27.3 | 31.6 | 26.5 | 14.1 | 17.7 | 25.1 | 23.8 | 23.6 | 16.5 | 26.0 | 31.7 | 33.3 | 29.2 | 32.6 | 25.9 | 25.7 | 26.6 | 25.2 | 11.5 | 20.2 | 19.1 | 22.9 | 28.4 | 22.5 |
| Norah Head AWS | 26.3 | 21.3 | 25.9 | 28.1 | 35.0 | 37.3 | 22.3 | 28.1 | 27.0 | 24.7 | 21.5 | 24.0 | 26.2 | 30.4 | 25.3 | 25.3 | 27.8 | 28.7 | 33.5 | 27.7 | 34.4 | 26.4 | 27.2 | 28.7 | 23.9 | 18.9 | 22.0 | 21.2 | 23.7 | 23.8 | 24.1 |
| Parramatta North (Masons Drive) | 24.8 | 22.0 | 30.0 | 34.2 | 39.5 | 41.0 | 23.0 | 27.0 | 35.5 | 26.8 | 25.8 | 23.0 | 27.5 | 35.0 | 24.6 | 24.6 | 29.0 | 37.5 | 41.5 | 34.5 | 38.5 | 32.0 | 32.8 | 34.2 | 23.0 | 19.0 | 22.5 | 24.2 | 24.0 | 26.2 | 24.6 |
| Penrith Lakes AWS | 25.8 | 26.0 | 31.6 | 37.0 | 40.5 | 41.7 | 24.8 | 32.3 | 38.3 | 30.4 | 25.0 | 23.6 | 30.0 | 34.9 | 27.6 | 22.7 | 31.3 | 39.6 | 41.9 | 34.0 | 39.2 | 34.3 | 34.1 | 35.8 | 27.1 | 18.5 | 25.5 | 25.5 | 27.6 | 31.8 | 27.1 |
| Richmond RAAF | 24.8 | 26.3 | 31.2 | 36.9 | 39.8 | 25.5 | 32.5 | 38.2 | 30.5 | 24.9 | 23.0 | 30.0 | 34.3 | 27.5 | 22.4 | 31.0 | 39.3 | 42.0 | 33.6 | 41.0 | 34.4 | 34.3 | 35.6 | 27.2 | 19.1 | 25.0 | 24.8 | 27.6 | 31.7 | 27.1 | |
| Sydney (Observatory Hill) | 24.6 | 22.9 | 26.3 | 29.6 | 37.8 | 33.8 | 23.5 | 27.2 | 31.9 | 28.3 | 26.4 | 22.7 | 27.3 | 32.5 | 26.4 | 23.8 | 27.4 | 30.8 | 42.2 | 34.4 | 35.0 | 32.3 | 33.4 | 31.2 | 23.7 | 18.7 | 23.6 | 23.9 | 25.5 | 25.7 | 24.9 |
| Sydney Airport AMO | 26.5 | 21.1 | 26.8 | 32.5 | 37.8 | 39.2 | 22.6 | 27.2 | 33.2 | 24.3 | 25.0 | 22.8 | 26.5 | 34.6 | 24.4 | 24.3 | 27.5 | 32.6 | 42.6 | 33.4 | 36.5 | 32.5 | 32.7 | 31.5 | 23.8 | 18.9 | 21.5 | 22.7 | 23.4 | 24.1 | 24.2 |
| Sydney Harbour (Wedding Cake West) | 23.4 | 19.5 | 21.5 | 24.5 | 31.0 | 32.2 | 20.7 | 23.0 | 25.4 | 22.5 | 22.2 | 21.7 | 22.3 | 25.9 | 22.0 | 21.8 | 22.4 | 24.7 | 37.7 | 27.3 | 30.3 | 28.8 | 27.2 | 24.7 | 20.6 | 20.4 | 20.5 | 21.1 | 22.2 | ||
| Sydney Olympic Park AWS (Archery Centre) | 25.9 | 22.7 | 28.3 | 34.4 | 39.2 | 41.2 | 22.4 | 28.8 | 36.6 | 27.2 | 25.3 | 22.7 | 28.2 | 35.1 | 24.9 | 22.7 | 28.2 | 37.2 | 42.7 | 34.7 | 41.9 | 32.9 | 33.6 | 34.6 | 23.5 | 19.0 | 22.6 | 23.6 | 24.2 | 25.7 | 25.1 |
| Terrey Hills AWS | 22.8 | 20.5 | 24.6 | 31.6 | 36.5 | 39.9 | 20.6 | 25.1 | 30.9 | 25.0 | 23.3 | 20.2 | 25.1 | 32.9 | 22.3 | 20.6 | 24.6 | 31.9 | 40.2 | 31.0 | 37.3 | 30.1 | 32.1 | 29.1 | 21.4 | 17.4 | 20.4 | 21.6 | 22.3 | 23.1 | 22.8 |
|
Values are the maximum temperature, usually in the 24 hours from 9 am on the day indicated, and typically occurred in the afternoon of that day. | |||||||||||||||||||||||||||||||
| Temperatures coloured according to their difference from the long-term average for the period |
-10.0 | -9.0 | -8.0 | -7.0 | -6.0 | -5.0 | -4.0 | -3.0 | -2.0 | -1.0 | 0.0 | +1.0 | +2.0 | +3.0 | +4.0 | +5.0 | +6.0 | +7.0 | +8.0 | +9.0 | +10.0 | °C | Grey outline marks highest and lowest for the period |
||||||||
| Daily minimum temperatures for December 2025 | |||||||||||||||||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 | 9 | 10 | 11 | 12 | 13 | 14 | 15 | 16 | 17 | 18 | 19 | 20 | 21 | 22 | 23 | 24 | 25 | 26 | 27 | 28 | 29 | 30 | 31 | |
| Badgerys Creek AWS | 8.1 | 10.9 | 9.1 | 11.5 | 11.7 | 14.6 | 21.2 | 15.2 | 15.2 | 18.6 | 17.1 | 17.2 | 14.4 | 17.5 | 16.4 | 15.5 | 14.5 | 15.8 | 18.1 | 20.8 | 21.5 | 21.8 | 16.8 | 15.4 | 16.5 | 13.7 | 11.3 | 12.3 | 10.4 | 11.1 | 11.9 |
| Bankstown Airport AWS | 9.7 | 12.5 | 11.3 | 13.7 | 15.1 | 16.9 | 19.8 | 17.5 | 17.2 | 19.2 | 18.5 | 18.2 | 15.7 | 18.8 | 17.6 | 16.7 | 17.0 | 17.4 | 19.4 | 22.1 | 23.1 | 22.6 | 20.1 | 17.1 | 17.3 | 13.9 | 13.2 | 14.3 | 12.2 | 11.6 | 14.3 |
| Camden Airport AWS | 6.9 | 10.1 | 8.7 | 11.4 | 11.4 | 13.9 | 23.3 | 15.7 | 14.0 | 18.6 | 17.8 | 17.5 | 16.1 | 17.8 | 16.5 | 15.5 | 14.6 | 15.7 | 17.4 | 20.6 | 21.9 | 22.1 | 17.7 | 14.3 | 16.8 | 12.8 | 11.3 | 12.2 | 9.7 | 11.0 | 12.6 |
| Campbelltown (Mount Annan) | 7.4 | 10.3 | 9.0 | 11.4 | 12.6 | 15.0 | 22.1 | 15.7 | 14.7 | 18.3 | 18.5 | 17.4 | 14.7 | 17.6 | 15.6 | 15.9 | 13.8 | 15.5 | 19.1 | 20.4 | 21.7 | 22.2 | 17.2 | 14.0 | 16.6 | 12.3 | 10.7 | 10.7 | 11.1 | 10.5 | 12.8 |
| Canterbury Racecourse AWS | 9.7 | 12.9 | 11.4 | 12.9 | 14.5 | 16.0 | 19.1 | 18.0 | 15.6 | 18.4 | 18.6 | 18.5 | 14.0 | 18.2 | 17.2 | 16.3 | 15.8 | 16.0 | 17.6 | 22.0 | 22.5 | 22.5 | 20.2 | 15.1 | 18.9 | 13.7 | 14.4 | 15.7 | 12.9 | 10.9 | 14.2 |
| Cooranbong (Lake Macquarie AWS) | 9.2 | 10.3 | 9.4 | 10.1 | 11.9 | 14.7 | 19.6 | 17.4 | 15.1 | 20.1 | 20.3 | 18.2 | 14.2 | 19.1 | 18.6 | 16.6 | 17.3 | 14.1 | 18.6 | 20.8 | 20.1 | 25.2 | 18.8 | 18.6 | 18.3 | 15.4 | 8.8 | 10.9 | 9.8 | 9.1 | 11.7 |
| Gosford AWS | 10.3 | 14.1 | 11.4 | 12.4 | 13.6 | 17.2 | 20.8 | 17.6 | 16.7 | 18.7 | 19.5 | 18.3 | 16.7 | 18.6 | 19.3 | 16.6 | 18.2 | 15.8 | 18.9 | 21.8 | 22.0 | 25.1 | 20.5 | 17.9 | 19.8 | 14.4 | 9.6 | 14.9 | 12.9 | 11.5 | 13.6 |
| Holsworthy Aerodrome AWS | 9.2 | 11.6 | 9.1 | 11.9 | 12.8 | 16.9 | 19.1 | 16.7 | 15.3 | 18.6 | 17.6 | 18.1 | 14.3 | 17.2 | 16.1 | 16.7 | 15.3 | 17.2 | 17.8 | 20.6 | 21.7 | 22.5 | 19.0 | 15.6 | 16.3 | 13.3 | 11.1 | 12.7 | 11.5 | 9.3 | 12.8 |
| Holsworthy Defence AWS | 8.4 | 10.4 | 9.2 | 11.9 | 14.1 | 17.5 | 18.2 | 16.0 | 14.9 | 17.6 | 17.4 | 17.2 | 14.1 | 16.3 | 15.3 | 15.5 | 13.9 | 15.4 | 18.1 | 19.7 | 20.9 | 21.4 | 17.6 | 13.9 | 15.5 | 12.4 | 10.5 | 12.2 | 11.4 | 9.0 | 12.5 |
| Horsley Park Equestrian Centre AWS | 10.2 | 12.1 | 9.6 | 13.2 | 14.0 | 18.4 | 19.6 | 15.9 | 15.9 | 18.6 | 17.4 | 17.3 | 14.9 | 17.8 | 16.5 | 15.4 | 15.2 | 16.3 | 19.9 | 21.3 | 21.7 | 21.8 | 18.0 | 15.2 | 16.6 | 13.7 | 12.0 | 13.5 | 12.7 | 12.9 | 13.3 |
| Katoomba (Farnells Rd) | 6.2 | 8.2 | 17.8 | 21.3 | 10.4 | 12.8 | 11.7 | 11.7 | 10.6 | 13.4 | 10.9 | 10.4 | 14.7 | 17.8 | 12.7 | 10.5 | 10.5 | 7.6 | 5.0 | 6.8 | 6.0 | 7.5 | 14.6 | ||||||||
| Mangrove Mountain AWS | 7.8 | 7.3 | 7.4 | 11.1 | 15.2 | 23.9 | 19.7 | 14.7 | 14.0 | 16.6 | 17.1 | 15.9 | 14.3 | 17.1 | 16.6 | 14.8 | 15.8 | 14.6 | 19.0 | 24.0 | 19.0 | 15.3 | 17.2 | 12.9 | 7.0 | 8.9 | 7.8 | 9.1 | 12.1 | ||
| Mount Boyce AWS | 7.0 | 3.4 | 5.6 | 11.9 | 17.3 | 20.1 | 15.4 | 10.6 | 13.4 | 13.1 | 11.9 | 11.5 | 10.6 | 13.1 | 10.7 | 10.2 | 11.4 | 14.0 | 21.7 | 16.8 | 17.8 | 13.5 | 12.5 | 10.2 | 10.2 | 8.1 | 4.4 | 6.6 | 5.9 | 7.5 | 15.0 |
| Norah Head AWS | 14.9 | 13.9 | 14.2 | 16.8 | 18.4 | 21.6 | 20.9 | 18.3 | 19.1 | 19.4 | 20.5 | 18.1 | 17.0 | 18.9 | 19.7 | 17.2 | 18.2 | 18.4 | 21.2 | 22.6 | 21.7 | 23.3 | 20.1 | 19.4 | 20.1 | 16.3 | 13.6 | 16.1 | 15.0 | 14.4 | 17.2 |
| Parramatta North (Masons Drive) | 10.0 | 12.5 | 12.0 | 14.2 | 16.0 | 18.0 | 20.0 | 17.2 | 19.5 | 19.2 | 18.5 | 18.5 | 16.0 | 17.8 | 18.0 | 17.2 | 17.2 | 17.5 | 20.0 | 22.2 | 23.7 | 23.0 | 20.1 | 17.6 | 17.5 | 14.0 | 13.4 | 15.0 | 12.5 | 12.5 | 14.5 |
| Penrith Lakes AWS | 11.3 | 12.3 | 12.2 | 13.8 | 14.5 | 17.4 | 22.6 | 16.2 | 16.5 | 19.4 | 18.5 | 17.6 | 16.3 | 18.1 | 18.0 | 15.7 | 16.4 | 17.5 | 19.9 | 21.8 | 22.9 | 23.9 | 19.1 | 16.4 | 18.2 | 13.9 | 12.6 | 14.4 | 12.3 | 12.4 | 15.0 |
| Richmond RAAF | 11.6 | 9.6 | 10.6 | 12.6 | 12.9 | 21.9 | 16.0 | 16.3 | 19.7 | 18.4 | 17.5 | 16.2 | 18.4 | 18.3 | 16.0 | 16.8 | 17.1 | 19.6 | 21.8 | 22.6 | 24.4 | 18.8 | 17.5 | 17.6 | 14.2 | 10.1 | 13.2 | 10.8 | 12.5 | 14.2 | |
| Sydney (Observatory Hill) | 15.0 | 13.3 | 14.0 | 16.4 | 18.2 | 22.5 | 19.8 | 18.1 | 18.8 | 18.3 | 19.4 | 19.0 | 16.5 | 18.5 | 19.1 | 16.8 | 18.1 | 18.8 | 21.5 | 23.0 | 23.2 | 23.4 | 20.8 | 18.2 | 18.9 | 15.0 | 15.0 | 15.2 | 14.9 | 15.1 | 16.8 |
| Sydney Airport AMO | 15.5 | 13.4 | 14.2 | 17.7 | 19.6 | 21.7 | 19.3 | 19.0 | 19.9 | 18.4 | 19.3 | 19.1 | 17.3 | 19.1 | 18.7 | 17.1 | 18.3 | 19.7 | 21.1 | 23.0 | 22.9 | 22.8 | 20.5 | 19.1 | 19.5 | 14.4 | 14.6 | 14.9 | 15.9 | 15.1 | 17.1 |
| Sydney Harbour (Wedding Cake West) | 16.4 | 14.2 | 15.3 | 18.0 | 19.2 | 21.8 | 19.8 | 18.6 | 19.8 | 18.6 | 20.0 | 19.6 | 17.8 | 19.5 | 19.8 | 17.5 | 19.5 | 19.9 | 21.4 | 23.3 | 23.0 | 24.1 | 21.3 | 18.9 | 20.0 | 16.0 | 16.3 | 16.4 | 18.3 | ||
| Sydney Olympic Park AWS (Archery Centre) | 11.4 | 13.0 | 11.9 | 14.1 | 14.8 | 17.0 | 19.7 | 17.8 | 17.6 | 19.2 | 19.0 | 18.6 | 15.7 | 18.6 | 18.4 | 16.6 | 16.7 | 17.5 | 19.9 | 22.3 | 23.4 | 23.2 | 21.3 | 16.6 | 18.1 | 14.5 | 14.5 | 15.9 | 13.1 | 12.5 | 15.6 |
| Terrey Hills AWS | 12.8 | 11.5 | 11.3 | 15.3 | 19.0 | 24.6 | 18.6 | 15.3 | 16.7 | 16.5 | 17.6 | 16.5 | 14.6 | 16.9 | 17.3 | 14.6 | 17.5 | 17.4 | 21.6 | 20.6 | 21.4 | 22.4 | 19.4 | 15.6 | 17.2 | 13.3 | 11.3 | 13.7 | 12.1 | 12.3 | 14.6 |
|
Values are the minimum temperature, usually in the 24 hours to 9 am on the day indicated, and typically occurred that morning. | |||||||||||||||||||||||||||||||
| Temperatures coloured according to their difference from the long-term average for the period |
-10.0 | -9.0 | -8.0 | -7.0 | -6.0 | -5.0 | -4.0 | -3.0 | -2.0 | -1.0 | 0.0 | +1.0 | +2.0 | +3.0 | +4.0 | +5.0 | +6.0 | +7.0 | +8.0 | +9.0 | +10.0 | °C | Grey outline marks highest and lowest for the period |
||||||||
| Daily rainfall for December 2025 | ||||||||||||||||||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 | 9 | 10 | 11 | 12 | 13 | 14 | 15 | 16 | 17 | 18 | 19 | 20 | 21 | 22 | 23 | 24 | 25 | 26 | 27 | 28 | 29 | 30 | 31 | ||
| Abbotsbury (Fairfield (City Farm)) | - | - | - | - | - | - | - | - | - | - | 3.0 | 18.0 | 8.0 | 8.0 | - | 1.0 | - | - | - | 2.0 | - | 1.0 | - | - | - | - | - | 1.0 | - | - | - | |
| Abbotsford (Blackwall Point Rd) | - | - | - | - | - | - | - | - | - | - | 1.4 | 4.8 | 3.5 | 6.4 | - | 0.6 | - | - | - | 2.2 | 0.2 | 1.6 | 0.1 | - | - | - | - | - | - | - | - | |
| Audley (Royal National Park) | - | - | - | - | - | - | - | - | - | - | 1.0 | 5.0 | 11.0 | 9.0 | - | - | - | - | - | 5.0 | - | 2.0 | - | - | - | - | - | - | - | - | - | |
| Badgerys Creek AWS | - | - | - | - | - | - | - | - | - | - | 8.4 | 21.0 | 8.8 | 12.0 | - | 0.4 | - | - | - | 3.0 | 0.2 | 0.2 | - | - | - | - | - | - | - | - | - | |
| Bankstown Airport AWS | - | - | - | - | - | - | - | - | - | - | 1.4 | 13.2 | 7.6 | 6.2 | - | - | - | 0.2 | - | 4.0 | 0.2 | 3.2 | 0.2 | - | - | 0.4 | - | - | - | - | - | |
| Baulkham Hills Eucalyptus Ct | - | - | - | - | - | - | - | - | - | 0.5 | 4.0 | 15.0 | 1.5 | 10.5 | - | 1.0 | - | - | - | 4.5 | - | 0.5 | - | - | - | - | - | - | - | - | - | |
| Bilpin Post Office | - | - | - | - | - | - | → | 4.8 | - | - | 6.0 | 8.0 | 22.0 | → | 40.2 | 6.6 | 3.8 | - | - | 9.0 | → | 0.2 | 0.4 | - | - | 1.8 | 2.4 | |||||
| Blackheath (Wombat Street) | - | - | - | - | - | - | - | 2.0 | - | - | 8.0 | 11.0 | - | 14.0 | - | 6.0 | 2.0 | - | - | 1.0 | - | 6.0 | - | - | - | 1.0 | - | - | - | - | - | |
| Bringelly (Maryland) | - | - | - | - | - | - | - | - | - | - | 8.0 | 10.0 | 14.0 | 9.0 | - | - | - | - | - | 4.0 | 1.0 | - | - | - | - | - | - | - | - | - | - | |
| Camden (Brownlow Hill) | - | - | - | - | - | - | - | - | - | - | 2.8 | 9.0 | - | - | - | 0.4 | - | - | - | 8.0 | - | 5.2 | - | - | - | 0.4 | - | - | - | - | - | |
| Camden Airport AWS | - | - | - | - | - | - | - | - | - | - | 0.2 | 7.0 | 8.4 | 13.8 | - | 0.2 | - | - | 4.2 | 0.2 | 3.2 | - | - | - | 0.4 | - | - | - | - | - | ||
| Campbelltown (Kentlyn (Georges River Roa | - | - | - | - | - | - | - | - | - | - | 3.0 | 8.0 | 8.0 | 8.0 | - | - | - | - | - | 7.0 | 1.0 | 2.0 | - | - | - | 1.0 | - | - | - | - | - | |
| Campbelltown (Mount Annan) | - | - | - | - | - | - | - | - | - | - | - | 6.4 | 4.4 | 9.8 | 0.2 | - | - | - | - | 7.0 | 0.4 | 2.6 | - | - | - | 2.2 | - | - | - | - | - | |
| Canterbury Racecourse AWS | - | - | - | - | 0.2 | - | - | - | - | - | 2.8 | 5.8 | 4.4 | 7.2 | - | 0.2 | - | - | - | 2.6 | 0.4 | 2.2 | 0.2 | - | - | 0.4 | - | - | - | - | - | |
| Centennial Park | - | - | - | - | - | - | - | - | - | - | 2.4 | 4.0 | 3.8 | 9.8 | - | - | - | - | - | 2.5 | 2.0 | 1.4 | 1.4 | - | ||||||||
| Chatswood Bowling Club | - | - | - | - | - | - | 1.0 | - | - | - | 1.0 | 9.0 | 2.0 | 7.0 | - | 1.0 | - | - | - | 3.0 | - | 1.0 | - | - | - | - | - | - | - | - | - | |
| Collaroy (Long Reef Golf Club) | - | - | - | - | - | - | 3.0 | - | - | - | 3.0 | 6.0 | 3.2 | 5.4 | - | 2.0 | ||||||||||||||||
| Colo Heights (Mountain Pines) | - | - | - | - | - | - | - | 4.8 | - | - | 1.4 | 7.0 | 5.4 | 34.0 | - | 9.2 | 4.8 | - | - | 8.0 | - | - | 1.2 | - | - | 0.4 | ||||||
| Concord (Brays Rd) | - | - | - | - | - | - | - | - | - | - | 1.4 | 6.4 | 4.6 | 8.8 | - | 0.8 | - | - | - | 2.6 | - | 1.6 | - | - | - | - | - | - | - | - | - | |
| Concord Golf Club | - | - | - | - | - | - | - | - | - | - | 0.2 | 11.2 | - | 8.8 | - | - | - | - | - | 3.4 | 0.4 | 2.2 | ||||||||||
| Cooranbong (Avondale) | - | - | - | - | - | - | - | 1.0 | - | - | - | 45.0 | 45.0 | 4.0 | - | 7.0 | - | - | - | 2.0 | - | - | 4.0 | - | - | - | - | - | - | - | - | |
| Cooranbong (Lake Macquarie AWS) | - | - | - | - | - | - | 1.0 | - | - | - | 0.8 | 48.6 | 47.4 | 4.4 | 0.2 | 7.2 | 0.8 | - | - | 2.0 | - | - | 4.6 | - | - | - | - | - | - | - | - | |
| Cronulla South Bowling Club | - | - | 5.0 | - | - | - | - | - | - | 1.0 | 1.0 | 2.0 | 11.0 | 8.0 | - | - | 3.0 | - | - | 2.0 | - | 2.0 | - | - | - | - | 2.0 | - | - | - | - | |
| Darkes Forest (Kintyre) | - | - | - | - | - | - | - | - | - | - | 3.0 | 18.0 | 23.0 | 7.0 | - | - | - | - | - | 3.0 | - | 4.0 | - | - | - | 3.0 | - | - | - | - | - | |
| Faulconbridge (Great Western Hwy) | - | - | - | - | - | - | - | 3.0 | - | - | 4.0 | 46.0 | 1.0 | 14.0 | - | 10.0 | 1.0 | - | - | 1.0 | - | - | - | - | - | 3.0 | - | - | - | - | - | |
| Faulconbridge (St Georges Crescent) | - | - | - | - | - | - | - | 4.2 | - | - | 4.2 | 48.6 | 2.8 | 13.8 | 0.2 | 7.2 | 2.0 | 0.2 | - | 1.2 | - | 0.2 | - | - | - | 3.6 | 1.4 | - | - | - | - | |
| Gosford AWS | - | - | - | - | - | - | 2.8 | 0.6 | - | 0.6 | 1.2 | 29.0 | 10.4 | 2.4 | - | 2.0 | - | - | - | 0.4 | 0.2 | - | 2.6 | 0.2 | - | 3.4 | 1.6 | - | - | - | - | |
| Holsworthy Aerodrome AWS | - | 0.2 | - | - | - | - | - | - | - | - | 8.0 | 2.6 | 9.2 | - | - | - | - | - | 3.0 | 1.4 | 0.4 | 0.4 | - | - | 0.2 | - | - | - | - | - | ||
| Holsworthy Defence AWS | - | - | - | - | - | - | - | - | - | - | - | 4.4 | 40.0 | 0.4 | 0.2 | - | - | - | - | 0.4 | 0.6 | - | 0.4 | - | - | - | - | - | - | - | - | |
| Hornsby (Swimming Pool) | - | - | - | - | - | - | 0.8 | - | - | 0.6 | 8.6 | 25.8 | 2.0 | 6.8 | - | 2.4 | - | - | - | 5.0 | - | - | - | - | - | - | 0.4 | - | - | - | - | |
| Horsley Park Equestrian Centre AWS | - | - | - | - | - | - | - | - | - | - | 2.6 | 22.2 | 9.6 | 9.2 | - | 0.4 | - | - | - | 3.6 | 0.4 | 0.8 | - | - | - | - | - | - | - | - | - | |
| Katoomba (Farnells Rd) | - | - | - | - | - | - | - | → | 1.2 | 0.4 | 6.2 | 8.2 | 5.0 | 26.6 | - | 4.4 | 1.4 | - | - | 0.9 | - | → | 13.6 | - | - | 1.2 | 1.0 | - | - | - | - | |
| Kurrajong Heights (Bells Line of Road) | - | 1.6 | - | - | - | - | - | 5.6 | - | - | 1.8 | 11.8 | 10.8 | 21.5 | - | 12.6 | 3.2 | - | - | 14.4 | - | 0.1 | 0.3 | → | → | → | → | 3.0 | - | - | - | |
| Lucas Heights (ANSTO) | - | 0.2 | - | - | - | - | - | - | - | - | 1.6 | 8.0 | 2.2 | 8.0 | - | - | - | - | - | 7.2 | - | 2.8 | - | - | - | - | - | - | - | - | - | |
| Mangrove Mountain AWS | - | - | - | - | - | - | 1.6 | 0.8 | - | - | 3.2 | 32.0 | 23.0 | 4.8 | - | 3.2 | 0.2 | 0.2 | - | - | - | 11.8 | 0.2 | - | 0.6 | - | - | - | - | - | ||
| Marrickville Golf Club | - | - | - | - | - | - | - | - | - | - | 2.0 | 3.0 | 2.0 | - | - | - | - | - | - | 1.0 | - | 1.0 | - | - | - | - | - | - | - | - | - | |
| Menangle Bridge (Nepean River) | - | - | - | - | - | - | - | - | - | - | - | 6.0 | 20.0 | 8.0 | - | - | - | - | - | 14.0 | - | 7.0 | - | - | - | - | - | - | - | - | - | |
| Mount Boyce AWS | - | - | - | - | - | - | - | 0.8 | 0.2 | - | 8.0 | 9.2 | 0.6 | 13.4 | 0.2 | 3.8 | 1.2 | 0.2 | - | 1.2 | 0.2 | 4.2 | - | - | - | 0.8 | - | 0.2 | - | - | - | |
| Norah Head AWS | - | - | - | - | - | - | - | 1.6 | - | - | - | 73.6 | 13.4 | 2.4 | - | 1.8 | - | - | - | - | - | - | 7.0 | 0.2 | - | - | 0.8 | - | 0.4 | - | - | |
| North Parramatta (Burnside Homes) | - | - | - | - | - | - | - | - | - | - | 2.0 | 9.0 | 1.5 | 10.0 | - | 1.0 | - | - | - | 3.5 | - | 1.5 | - | - | - | - | - | - | - | - | - | |
| North Rocks (Muirfield Golf Club) | - | - | - | - | - | - | 0.5 | - | - | 0.5 | 2.5 | 12.0 | 0.5 | 9.5 | - | 0.5 | - | - | - | 3.5 | 0.5 | 1.0 | - | - | - | - | - | - | - | - | - | |
| North Ryde Golf Club | - | - | - | - | - | - | - | - | - | - | - | 7.0 | 2.0 | 6.0 | - | 2.0 | - | - | - | 2.0 | - | 1.0 | - | - | - | - | - | - | - | - | - | |
| Parramatta North (Masons Drive) | - | - | - | - | - | - | 0.4 | - | - | - | 2.6 | 9.0 | 3.0 | 0.8 | - | 0.2 | - | - | - | 3.8 | 0.4 | 3.4 | 0.2 | - | - | - | - | - | - | - | - | |
| Peakhurst Golf Club | - | - | - | - | - | - | - | - | - | - | 4.0 | 6.0 | 3.0 | 7.0 | - | - | - | - | - | 7.0 | - | 3.0 | - | - | - | - | - | - | - | - | - | |
| Penrith Lakes AWS | - | - | - | - | - | - | - | - | - | - | 1.8 | 12.8 | 1.6 | 11.6 | 0.2 | 3.2 | - | 0.2 | - | 6.2 | 0.2 | - | - | - | - | 1.8 | - | - | - | - | - | |
| Prospect Reservoir | - | - | - | - | - | - | - | - | - | - | 1.0 | 20.0 | 2.0 | 8.0 | - | - | - | - | - | 1.0 | 1.0 | 2.0 | - | - | - | - | - | - | - | - | - | |
| Putty (The Gibba) | - | - | - | - | - | - | - | 2.0 | - | - | 5.0 | 3.0 | 3.0 | 10.0 | - | 4.0 | 1.0 | - | - | - | - | - | - | - | - | - | - | - | - | - | - | |
| Randwick (Randwick St) | - | - | - | - | - | - | - | - | - | - | 3.0 | 4.0 | 3.8 | 6.0 | - | 0.6 | - | - | - | 2.8 | 1.8 | 1.6 | 0.4 | - | - | 0.6 | - | - | 0.4 | - | - | |
| Richmond RAAF | - | - | - | - | - | - | - | - | 0.4 | 19.8 | 4.6 | 18.2 | 0.2 | 3.0 | - | - | - | 10.4 | 0.2 | - | - | - | - | 0.2 | - | - | - | - | - | |||
| Rose Bay (Royal Sydney Golf Club) | - | - | - | - | - | - | 0.4 | - | - | - | 1.0 | 3.2 | 6.2 | 6.0 | - | 1.4 | - | - | - | 1.4 | 1.6 | 1.0 | - | - | - | 0.4 | 0.2 | - | - | - | - | |
| Rossmore (South Creek) | - | - | - | - | - | - | - | - | - | - | 4.0 | 16.0 | 5.0 | 12.0 | - | - | - | - | - | 3.0 | - | - | - | - | - | - | - | - | - | - | - | |
| Sans Souci (Public School) | - | - | - | - | - | - | - | - | - | - | - | 2.0 | 2.0 | 4.0 | - | - | - | - | - | 3.0 | - | 1.0 | - | - | - | - | - | - | - | - | - | |
| Seven Hills (Radio FM 103.2) | - | - | - | - | - | - | - | - | - | 1.0 | 1.5 | 15.0 | 2.5 | 9.5 | - | - | - | - | - | 2.0 | - | 1.5 | - | - | - | - | - | - | - | - | - | |
| Shanes Park (South Creek Road) | - | - | - | - | - | - | - | - | - | - | 1.8 | 20.4 | 6.4 | 19.2 | - | 2.6 | - | - | - | 6.8 | - | - | - | - | - | 1.6 | 0.2 | - | - | - | - | |
| Sydney (Observatory Hill) | - | - | - | - | - | - | 1.6 | - | - | - | 0.8 | 3.0 | 1.6 | 6.2 | 0.2 | 0.6 | 0.2 | - | - | 2.4 | 0.6 | 1.0 | 0.4 | 0.2 | - | - | 0.2 | - | - | - | - | |
| Sydney Airport AMO | - | - | - | - | - | - | 0.8 | - | - | - | 3.2 | 1.4 | 4.2 | 5.8 | - | - | - | - | - | 3.0 | - | 2.2 | 0.4 | - | - | - | - | 0.4 | - | - | - | |
| Sydney Botanic Gardens | - | - | - | - | - | - | 2.0 | - | - | - | 0.8 | 1.4 | 3.2 | 7.2 | - | 1.2 | - | - | - | 0.7 | 3.1 | 1.4 | 0.4 | - | - | - | - | - | - | - | - | |
| Sydney Olympic Park AWS (Archery Centre) | - | - | - | - | - | - | - | - | - | - | 1.0 | 13.0 | 3.8 | 8.6 | 0.2 | 0.4 | - | - | - | 2.4 | 0.4 | 2.8 | - | - | - | - | - | - | - | - | - | |
| Terrey Hills AWS | - | - | - | - | - | - | 0.4 | - | - | - | 4.8 | 22.2 | 1.8 | 5.4 | - | 6.6 | - | - | - | 5.0 | - | - | 0.2 | 0.2 | - | - | - | - | - | - | - | |
| Wahroonga (Ada Avenue) | - | - | - | - | - | - | 1.6 | - | - | 0.8 | 8.6 | 27.8 | 4.6 | 8.8 | - | 2.4 | - | - | - | 5.4 | - | 0.6 | 0.2 | - | 0.2 | - | 0.8 | - | - | - | - | |
| Wedderburn (Booalbyn) | - | - | - | - | - | - | - | - | - | - | - | 7.0 | 33.0 | 9.0 | - | - | - | - | - | 4.0 | - | 8.0 | - | - | - | - | - | - | - | - | - | |
| Wyong (Kulnura (Jeavons)) | - | - | - | - | - | - | - | - | - | - | - | 49.0 | 28.0 | 14.0 | - | 6.0 | 1.0 | - | - | - | - | - | 15.0 | - | - | - | - | - | - | - | - | |
| Yarramalong (Lewensbrook) | - | - | - | - | - | - | 0.4 | - | - | - | - | 66.0 | 49.0 | 5.0 | - | 8.4 | - | - | - | 4.0 | - | - | 13.0 | - | - | - | - | - | - | - | - | |
|
Most values are the precipitation in the 24 hours to 9 am on the day indicated.
Days marked with → are part of a longer accumulation, which is shown on the final day. Values over 100 mm have been rounded to the nearest whole millimetre. Days marked with - have a rainfall report of zero; days left blank have no rainfall report (which often indicates no rain fell). | ||||||||||||||||||||||||||||||||
| Rainfalls coloured according to the amount |
0 | 1.0 | 5.0 | 10.0 | 15.0 | 25.0 | 50.0 | 100 | 150 | 200 | 300 | 400 | 600 | millimetres | ||||||||||||||||||
Extremes Records Summaries Daily observations Important notes the top
Notes
The Monthly climate summary, usually published in the first week of the following month, lists the main features of the weather in Greater Sydney using the most timely and accurate information available on the date of publication; it will generally not be updated.
This summary includes data from observing sites in or near the Greater Sydney “Greater Capital City Statistical Area” (GCCSA). The Australian Bureau of Statistics designed the GCCSAs to represent a socio-economic definition of each capital city. This means the greater capital city boundary includes people who regularly socialise, shop or work within the capital city, but live in the small towns and rural areas surrounding the capital city. It does not define the built up edge of the capital city.
This statement has been prepared based on information available on Monday 5 January 2026. Some checks have been made on the data, but it is possible that results will change as new information becomes available.
In some situations, some or all of the rainfall is in the form of hail or snow. In these cases, the totals given are for the water equivalent: the depth of liquid water that results from melting any frozen precipitation. There can be significant 'undercatch' of snow in strong winds, meaning the true precipitation can be higher than that reported.
Averages for individual sites are long-term means based on observations from
all available years of record, excluding the current year. The length of record can
vary widely from site to site. Averages are not shown for sites with fewer than
10 years of record, as they cannot then be calculated reliably.
The median
is sometimes more representative than the
mean
of long-term average rain.
The Rank indicates how rainfall this time compares with the climate record for the site,
based on the
decile ranking
(very low rainfall is in decile 1, low in decile 2 or 3,
average in decile 4 to 7, high in decile 8 or 9
and very high is in decile 10).
The Fraction of average shows how much rain has fallen this time as a
percentage of the long-term mean.
Where temperature area averages are mentioned, they are derived from the ACORN-SAT dataset.
Information about Australian Indigenous seasonal calendars is available at the Indigenous Weather Knowledge website.
Unless otherwise noted, all maps, graphs and diagrams in this page are licensed under the Creative Commons Attribution 4.0 International Licence
