Wednesday 1 October 2025 - Monthly Climate Summary for Tasmania - Product code IDCKGC17R0
Tasmania in September 2025
Rainfall
- Rainfall totals in September were above to very much above average across the west and south, below average for the east coast, and average for parts of the north-east.
- Tasmania's area-averaged rainfall total in September was 179.7 mm, 33% above the 1961–1990 average.
- September was the first month with widespread above average rainfall across western Tasmania since December 2024.
- Some sites with less than 30 years of data had their highest total September rainfall on record, while other sites had their highest total September rainfall for at least 20 years.
Temperature
- Mean maximum temperatures in September were average for most of Tasmania, and above average for the Bass Straight Islands and north-east.
- Tasmania's area-averaged mean maximum temperature was 12.00 °C, 0.15 °C below the 1961–1990 average.
- Mean minimum temperatures in September were above average across the north and east, very much above average for parts of the Bass Straight Islands, and average elsewhere.
- Tasmania's area-averaged mean minimum temperature was 4.29 °C, 0.39 °C above the 1961–1990 average.
- Tasmania had its lowest mean minimum temperature for September since 2022.
- Tasmania's area-averaged mean temperature was 8.14 °C, 0.12 °C above the 1961–1990 average.
- Cape Bruny (Cape Bruny) had its coolest September day (lowest daily maximum temperature) on record.
- Grove (Research Station) had its coldest September night (lowest daily minimum temperature) on record.
Events
- On 27 September, a deep low pressure system south of Tasmania directed several troughs and a cold front over Tasmania resulting in damaging winds, rain and snow across the state.
- For more details, visit the September national climate summary.
Hobart (Ellerslie Road)
- Total rainfall for Hobart (Ellerslie Road) was 54.2 mm, which is 102% of the long-term average of 53.0 mm.
- The mean daily maximum temperature for Hobart (Ellerslie Road) was 15.8 °C, which is 0.6 °C above the long-term average of 15.2 °C.
- The warmest day was 24.0 °C on the 15th, and the coolest day was on the 3rd when the temperature reached 10.7 °C.
- The mean daily minimum temperature for Hobart (Ellerslie Road) was 6.9 °C, which is 0.4 °C above the long-term average of 6.5 °C.
- The coldest morning was 1.0 °C on the 6th, and the warmest morning was on the 15th when the minimum temperature was 13.5 °C.
Extremes Maps Records Summaries Important notes the top
| Extremes in September 2025 | |
|---|---|
| Hottest day |
24.1 °C at Hobart Airport on the 15th |
| Warmest days on average |
17.3 °C at Bicheno (Council Depot) |
| Coolest days on average |
4.1 °C at kunanyi (Mount Wellington Pinnacle) |
| Coldest day |
-2.2 °C at kunanyi (Mount Wellington Pinnacle) on the 4th |
| Coldest night |
-6.3 °C at Butlers Gorge on the 6th |
| Coolest nights on average |
-1.7 °C at kunanyi (Mount Wellington Pinnacle) |
| Warmest nights on average |
9.4 °C at Swan Island |
| Warmest night |
14.6 °C at Flinders Island Airport on the 15th |
| Warmest on average overall |
12.8 °C at Bicheno (Council Depot) |
| Coolest on average overall |
1.1 °C at kunanyi (Mount Wellington Pinnacle) |
| Wettest overall |
582.9 mm at Lake Margaret Dam |
| Wettest day |
62.0 mm at Jackeys Marsh on the 8th |
| Strongest wind gust |
148.0 km/h at Maatsuyker Island Lighthouse on the 16th |
Extremes Maps Records Summaries Important notes the top
| Maps | |||
|---|---|---|---|
| Observed | Anomaly | Decile rank | |
| Total rainfall |
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| Mean daily maximum temperatures |
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| Mean daily minimum temperatures |
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Click on a map to show it full size in a pop-up window
Extremes Maps Records Summaries Important notes the top
| Record highest September total rainfall | |||||
|---|---|---|---|---|---|
| New record (mm) |
Old record |
Years of record |
Average for September |
||
| Ouse Fire Station | 139.8 | 135.8 | in 2003 | 27 | 64.8 |
| Hartz Mountain (Keoghs Pimple) | 190.8 | 186.4 | in 2024 | 26 | 101.5 |
| Derwent Bridge | 301.4 | 299.8 | in 2024 | 25 | 152.3 |
| Warra | 398.8 | 387.0 | in 2024 | 20 | 203.0 |
| Highest September total rainfall for at least 20 years | |||||
|---|---|---|---|---|---|
| Observed (mm) |
Most recent higher |
Average for September |
|||
| Lake Margaret Power Station | 512.6 | 692.2 | in 1980 | 296.7 | |
| Yolla (Sea View) | 218.8 | 240.8 | in 1996 | 143.2 | |
| Maatsuyker Island Lighthouse | 135.2 | 152.0 | in 1998 | 107.8 | |
| Wayatinah (Saltas) | 311.8 | 346.2 | in 2003 | 164.0 | |
| Mount Dromedary | 143.6 | 196.4 | in 2003 | 91.9 | |
| Luncheon Hill (Forestry) | 251.8 | 260.4 | in 2003 | 166.4 | |
| Loongana (Serendipity) | 259.0 | 285.8 | in 2003 | 179.5 | |
note: there may be gaps in the historical record at some sites, so it is possible more recent higher values have gone unreported
| Record lowest September daily maximum temperature | ||||||
|---|---|---|---|---|---|---|
| New record (°C) |
Old record |
Years of record |
Average for September |
|||
| Cape Bruny (Cape Bruny) | 8.1 | on the 4th | 8.4 | on 05 Sep 2017 | 29 | 14.5 |
| Record lowest September temperature | ||||||
|---|---|---|---|---|---|---|
| New record (°C) |
Old record |
Years of record |
Average for September |
|||
| Grove (Research Station) | -3.3 | on the 6th | -3.2 | on 04 Sep 2008 | 22 | 4.3 |
Extremes Maps Records Summaries Important notes the top
| Summary statistics for September 2025 | ||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Maximum temperatures (°C) |
Minimum temperatures (°C) |
Rainfall (millimetres) |
||||||||||
| Mean for September 2025 |
Diff from average |
Highest for September 2025 |
Mean for September 2025 |
Diff from average |
Lowest for September 2025 |
Total for September 2025 |
Average for September |
Rank of September 2025 |
Fraction of September average |
|||
| Northern (district 91) | ||||||||||||
| Cressy (Brumbys Creek) | 14.5 | 19.1 | 15th | 4.5 | -2.4 | 2nd | 72.8 | |||||
| Devonport Airport | 14.8 | +0.4 | 19.3 | 23rd | 6.8 | +0.6 | 1.5 | 10th | 84.4 | 72.4 | average | 117% |
| Kennaook/Cape Grim | 13.2 | -0.1 | 16.8 | 15th | 8.5 | -0.2 | 3.7 | 6th | 127.8 | 78.0 | high | 164% |
| Launceston (Ti Tree Bend) | 15.7 | -0.1 | 19.2 | 15th | 5.7 | +0.4 | -0.4 | 5th | 72.4 | 63.5 | average | 114% |
| Launceston Airport | 14.8 | -0.4 | 18.8 | 15th | 4.4 | +0.3 | -0.5 | 5th | 63.8 | 52.8 | average | 121% |
| Low Head | 14.3 | +0.2 | 18.2 | 15th | 8.6 | +0.1 | 4.2 | 10th | 58.4 | 57.3 | average | 102% |
| Luncheon Hill (Forestry) | 12.6 | +0.1 | 17.4 | 14th | 5.4 | -0.1 | 1.9 | 5th | 251.8 | 163.4 | high | 154% |
| Marrawah | 14.1 | +0.4 | 18.7 | 15th | 7.6 | +0.1 | 3.8 | 6th | 163.0 | 103.7 | high | 157% |
| Scottsdale (West Minstone Road) | 13.9 | -0.4 | 18.3 | 15th | 5.2 | +0.4 | -2.2 | 5th | 92.6 | 93.4 | average | 99% |
| Sheffield School Farm | 12.9 | -0.4 | 17.8 | 15th | 4.8 | +0.1 | -0.3 | 29th | 136.2 | 112.1 | average | 122% |
| Smithton Aerodrome | 14.4 | -0.5 | 17.4 | 15th | 7.0 | +0.8 | -0.3 | 6th | 153.6 | 97.2 | high | 158% |
| Wynyard Airport | 15.0 | +0.4 | 18.4 | 15th | 5.8 | +0.8 | -0.2 | 29th | 130.2 | 94.3 | high | 138% |
| East Coast (district 92) | ||||||||||||
| Bicheno (Council Depot) | 17.3 | +1.1 | 23.0 | 15th | 8.3 | +0.8 | 3.0 | 6th | 16.1 | 44.7 | low | 36% |
| Fingal (Fleming St) | 14.9 | 21.3 | 15th | 3.9 | -3.6 | 2nd | 22.0 | |||||
| Friendly Beaches | 17.1 | +0.2 | 23.6 | 15th | 7.4 | -0.1 | 3.3 | 6th | 18.6 | 44.7 | low | 42% |
| larapuna (Eddystone Point) | 16.0 | +1.1 | 20.2 | 15th | 8.0 | +0.1 | 3.1 | 5th | 50.2 | 62.8 | average | 80% |
| Maria Island (Point Lesueur) | 15.1 | 0.0 | 19.0 | 23rd | 8.3 | -0.1 | 4.5 | 5th | 14.4 | 43.5 | low | 33% |
| St Helens Aerodrome | 16.3 | +0.2 | 20.8 | 15th | 7.1 | +0.4 | 1.0 | 5th | 18.8 | 53.1 | low | 35% |
| Swan Island | 14.6 | -0.1 | 18.1 | 15th | 9.4 | +0.2 | 5.9 | 10th | 61.4 | 49.9 | average | 123% |
| Swansea (Francis Street) | 16.9 | +0.4 | 22.8 | 15th | 6.7 | +0.7 | 0.0 | 6th | 13.6 | 41.6 | low | 33% |
| Midlands (district 93) | ||||||||||||
| Ross (The Boulevards) | 14.2 | -0.4 | 18.6 | 15th | 2.9 | -0.6 | -3.3 | 2nd | 43.4 | 50.3 | average | 86% |
| Southeast (district 94) | ||||||||||||
| Campania (Kincora) | 15.9 | -0.4 | 23.4 | 15th | 5.4 | 0.0 | -2.8 | 6th | 39.8 | 44.1 | average | 90% |
| Cape Bruny (Cape Bruny) | 14.0 | -0.5 | 22.4 | 15th | 6.8 | -0.7 | 2.3 | 6th | 87.6 | 70.2 | average | 125% |
| Dennes Point | 15.0 | 0.0 | 21.7 | 15th | 7.2 | -0.3 | 2.3 | 6th | 30.8 | 39.0 | average | 79% |
| Dover | 14.4 | -0.4 | 22.2 | 15th | 4.9 | -0.1 | -1.0 | 6th | 117.8 | 83.5 | high | 141% |
| Dunalley (Stroud Point) | 15.5 | -0.1 | 20.8 | 15th | 7.4 | -0.5 | 2.0 | 6th | 22.0 | 41.3 | low | 53% |
| Grove (Research Station) | 14.7 | -0.7 | 22.7 | 15th | 4.3 | 0.0 | -3.3 | 6th | 125.8 | 76.5 | high | 164% |
| Hobart (Ellerslie Road) | 15.8 | +0.6 | 24.0 | 15th | 6.9 | +0.4 | 1.0 | 6th | 54.2 | 53.0 | average | 102% |
| Hobart Airport | 16.2 | 24.1 | 15th | 6.3 | 0.8 | 6th | 25.4 | |||||
| kunanyi (Mount Wellington Pinnacle) | 4.1 | -0.7 | 12.1 | 15th | -1.7 | -0.6 | -5.1 | 5th | 34.2 | 70.9 | low | 48% |
| Maatsuyker Island Lighthouse | 11.7 | -0.5 | 19.2 | 15th | 6.7 | -0.2 | 3.4 | 5th | 135.2 | 107.6 | high | 126% |
| Tasman Island | 12.4 | -0.3 | 17.8 | 15th | 6.6 | -0.4 | 1.9 | 5th | 72.0 | 71.7 | average | 100% |
| Tunnack Fire Station | 12.3 | -0.3 | 19.6 | 15th | 3.2 | 0.0 | -3.4 | 6th | 36.0 | 56.7 | average | 64% |
| Derwent Valley (district 95) | ||||||||||||
| Bushy Park (Bushy Park Estates) | 15.3 | -0.3 | 23.9 | 15th | 4.8 | +0.8 | -2.7 | 6th | 103.0 | 53.3 | high | 193% |
| Ouse Fire Station | 14.9 | -0.8 | 23.7 | 15th | 4.5 | +0.6 | -4.0 | 6th | 139.8 | 64.8 | highest | 216% |
| Central Plateau (district 96) | ||||||||||||
| Butlers Gorge | 9.1 | -1.1 | 18.0 | 15th | 1.6 | +0.5 | -6.3 | 6th | 305.6 | 170.7 | high | 179% |
| Liawenee | 7.6 | -1.5 | 15.5 | 15th | -0.2 | +0.2 | -5.7 | 29th | 138.0 | 103.9 | high | 133% |
| West Coast (Mountain Region) (district 97) | ||||||||||||
| Cape Sorell | 13.9 | +0.6 | 17.6 | 15th | 8.3 | +0.3 | 3.9 | 6th | 130.8 | 117.9 | average | 111% |
| Hartz Mountain (Keoghs Pimple) | 6.6 | -2.0 | 15.6 | 15th | 1.0 | -0.9 | -2.6 | 5th | 190.8 | 101.5 | highest | 188% |
| Low Rocky Point | 13.2 | -0.7 | 20.4 | 15th | 7.5 | -0.3 | 2.9 | 6th | 160.6 | 127.3 | high | 126% |
| Mount Read | 4.5 | -1.1 | 11.8 | 15th | -0.2 | -0.6 | -3.4 | 5th | 543.6 | 370.7 | high | 147% |
| Scotts Peak Dam | 10.9 | -1.5 | 19.9 | 15th | 3.6 | -0.8 | -0.3 | 29th | 235.0 | 208.8 | average | 112% |
| Strahan Aerodrome | 14.1 | -0.3 | 20.5 | 15th | 7.2 | +0.8 | 0.5 | 6th | 195.8 | 147.1 | high | 133% |
| Warra | 10.4 | -1.1 | 19.2 | 15th | 3.0 | -0.6 | -1.8 | 29th | 398.8 | 203.0 | highest | 196% |
| King Island (district 98) | ||||||||||||
| King Island Airport | 15.2 | +0.5 | 21.0 | 15th | 9.0 | +0.6 | 3.6 | 29th | 104.0 | 84.6 | high | 123% |
| Flinders Island (district 99) | ||||||||||||
| Flinders Island Airport | 15.7 | +0.5 | 22.5 | 15th | 8.8 | +1.1 | 0.8 | 6th | 58.2 | 61.5 | average | 95% |
| Note: From 2017, information about Macquarie Island can be found in the climate summary for the Remote Islands and Antarctica | ||||||||||||
Extremes Maps Records Summaries 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 Tasmania using the most timely and accurate information available on the date of publication; it will generally not be updated.
This statement has been prepared based on information available on Wednesday 1 October 2025. 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
