Wednesday, 4 October 2023 - Monthly Climate Summary for Tasmania - Product code IDCKGC17R0
Tasmania in September 2023
Rainfall
- Rainfall was very much below average for September across the north-east and along the north coast (in the driest 10% of September records). Rainfall was below average along the west coast, but was close to average for the western interior and across the south.
- The rainfall total for Tasmania as a whole was 35% below the September average (based on 1961-1990) and the lowest since 2015.
- The wettest day was the 20th when Warra recorded 66.0 mm when a rainband from the south-west slowly crossed the state.
- Bronte Heights had its highest September daily rainfall on record.
- Light snowfalls were recorded across elevated regions of southern Tasmania on the 1st, and central and southern Tasmania on the 11th.
Temperature
- Mean maximum temperatures were warmest on record for September for parts of the north and east, and very much above average for the rest of the state.
- The mean maximum temperature for Tasmania overall was 2.02 °C warmer than average (based on 1961-1990), the second-highest in 114 years of data, and the highest since 2001.
- Mean minimum temperatures were very much above average for parts of the north, and above average elsewhere.
- The mean minimum temperature for Tasmania overall was 0.56 °C warmer than average (based on 1961-1990).
- Some sites had their highest September temperature on record.
- For many sites it was their highest September mean daily maximum temperature on record, and for others their highest September mean daily maximum temperature for at least 20 years.
- Cape Sorrell had its equal-highest September mean daily minimum temperature on record.
- Some sites had their highest September mean temperature on record, and others their highest September mean temperature for at least 20 years.
Hobart (Ellerslie Road)
- Total rainfall for Hobart (Ellerslie Road) was 38.4 mm, which is 73% of the long-term average of 52.8 mm.
- The mean daily maximum temperature for Hobart (Ellerslie Road) was 17.5 °C, which is 2.3 °C above the long-term average of 15.2 °C.
- The warmest day was 24.1 °C on the 30th, and the coolest day was on the 21st when the temperature reached 11.9 °C.
- The mean daily minimum temperature for Hobart (Ellerslie Road) was 7.4 °C, which is 0.9 °C above the long-term average of 6.5 °C.
- The coldest morning was 1.8 °C on the 22nd, and the warmest morning was on the 29th when the minimum temperature was 12.3 °C.
Extremes Maps Records Summaries Important notes the top
| Extremes in September 2023 | |
|---|---|
| Hottest day | 27.3 °C at Swansea (Francis Street) on the 30th |
| Warmest days on average |
18.5 °C at Campania (Kincora) 18.5 °C at Friendly Beaches |
| Coolest days on average | 7.2 °C at Mount Read |
| Coldest day | 0.3 °C at kunanyi (Mount Wellington Pinnacle) on the 20th |
| Coldest night | -6.8 °C at Liawenee on the 26th |
| Coolest nights on average | 0.0 °C at kunanyi (Mount Wellington Pinnacle) |
| Warmest nights on average |
10.2 °C at Hogan Island 10.2 °C at Swan Island |
| Warmest night | 13.4 °C at Friendly Beaches on the 16th |
| Warmest on average overall |
13.2 °C at Bicheno (Council Depot) 13.2 °C at Friendly Beaches |
| Coolest on average overall | 3.7 °C at kunanyi (Mount Wellington Pinnacle) |
| Wettest overall | 320.8 mm at Mount Read |
| Wettest day | 66.0 mm at Warra on the 20th |
| Strongest wind gust | 144 km/h at Maatsuyker Island Lighthouse on the 17th |
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
| Record highest September daily rainfall | ||||||
|---|---|---|---|---|---|---|
|
New record (mm) |
Old record |
Years of record |
||||
| Bronte Heights | 40.0 | on the 20th | 39.1 | on the 12th in 1920 | 97 | |
| Record highest September temperature | ||||||
|---|---|---|---|---|---|---|
|
New record (°C) |
Old record |
Years of record |
Average for September |
|||
| Wynyard Airport | 21.4 | on the 29th | 20.6 | on the 15th in 2002 | 36 | 14.5 |
| Ross (The Boulevards) | 23.2 | on the 30th | 22.6 | on the 20th in 2019 | 30 | 14.6 |
| King Island Airport | 24.4 | on the 14th | 23.8 | on the 28th in 2014 | 29 | 14.7 |
| Luncheon Hill (Forestry) | 22.9 | on the 14th | 21.8 | on the 30th in 2001 | 28 | 12.5 |
| Cape Sorell | 21.2 | on the 14th | 21.0 | on the 16th in 2022 | 27 | 13.3 |
| Mount Read | 16.3 | on the 14th | 16.2 | on the 15th in 2002 | 27 | 5.6 |
| Tunnack Fire Station | 22.6 | on the 14th | 21.0 | on the 29th in 2001 | 27 | 12.5 |
| Low Head | 20.6 | on the 30th | 19.2 | on the 2nd in 2021 | 26 | 14.0 |
| Liawenee | 20.5 | on the 14th | 18.5 | on the 23rd in 2014 | 23 | 9.0 |
| Record highest September mean daily maximum temperature | |||||
|---|---|---|---|---|---|
|
New record (°C) |
Old record |
Years of record |
Average for September |
||
| larapuna (Eddystone Point) | 17.1 | 16.8 | in 2014 | 112 | 14.8 |
| Butlers Gorge | 12.5 | 12.3 | in 1954 | 62 | 10.2 |
| kunanyi (Mount Wellington Pinnacle) | 7.7 | 7.4 | in 2014 | 42 | 4.7 |
| Launceston (Ti Tree Bend) | 17.3 | = 17.3 | in 2014 | 40 | 15.7 |
| Wynyard Airport | 16.1 | 15.7 | in 2014 | 35 | 14.5 |
| Devonport Airport | 15.7 | 15.5 | in 2011 | 31 | 14.4 |
| Ross (The Boulevards) | 16.5 | 16.0 | in 2014 | 29 | 14.6 |
| King Island Airport | 16.3 | 16.0 | in 2013 | 28 | 14.7 |
| Friendly Beaches | 18.5 | 18.4 | in 2014 | 26 | 16.8 |
| Sheffield School Farm | 14.7 | 14.3 | in 2014 | 26 | 13.2 |
| Smithton Aerodrome | 16.1 | 15.9 | in 2014 | 26 | 14.8 |
| Tunnack Fire Station | 14.9 | 14.0 | in 2014 | 26 | 12.5 |
| Low Head | 15.2 | 14.8 | in 2022 | 25 | 14.0 |
| Ouse Fire Station | 17.5 | 17.3 | in 2014 | 25 | 15.7 |
| Campania (Kincora) | 18.5 | 17.8 | in 2014 | 23 | 16.2 |
| Liawenee | 11.4 | 11.2 | in 2001 | 22 | 9.0 |
| St Helens Aerodrome | 17.7 | 17.4 | in 2014 | 22 | 16.1 |
| Swan Island | 15.8 | 15.7 | in 2014 | 21 | 14.7 |
| Tasman Island | 14.2 | 14.1 | in 2014 | 21 | 12.6 |
| Highest September mean daily maximum temperature for at least 20 years | |||||
|---|---|---|---|---|---|
|
Observed (°C) |
Most recent higher |
Average for September |
|||
| Bushy Park (Bushy Park Estates) | 18.0 | 18.4 | in 1950* | 15.5 | |
| Bicheno (Council Depot) | 17.7 | 19.2 | in 1987* | 16.2 | |
| Flinders Island Airport | 16.9 | 17.1 | in 2001 | 15.2 | |
| Scottsdale (West Minstone Road) | 15.7 | =15.7 | in 2001 | 14.3 | |
| Luncheon Hill (Forestry) | 14.1 | 14.8 | in 2001* | 12.5 | |
| Strahan Aerodrome | 15.8 | 16.3 | in 2001* | 14.4 | |
* note: there are gaps in the historical record at this site, so it is possible a higher value has gone unreported
| Record highest September mean daily minimum temperature | |||||
|---|---|---|---|---|---|
|
New record (°C) |
Old record |
Years of record |
Average for September |
||
| Cape Sorell | 9.4 | = 9.4 | in 1937 | 83 | 7.9 |
| Record highest September mean temperature | |||||
|---|---|---|---|---|---|
|
New record (°C) |
Old record |
Years of record |
Average for September |
||
| Cape Sorell | 12.5 | 12.2 | in 2014 | 82 | 10.6 |
| Friendly Beaches | 13.2 | = 13.2 | in 1998 | 26 | 12.1 |
| Low Head | 12.2 | 12.1 | in 2013 | 25 | 11.3 |
| St Helens Aerodrome | 12.6 | 12.4 | in 2013 | 22 | 11.3 |
| Swan Island | 13.0 | 12.7 | in 2014 | 21 | 11.9 |
| Highest September mean temperature for at least 20 years | |||||
|---|---|---|---|---|---|
|
Observed (°C) |
Most recent higher |
Average for September |
|||
| Bicheno (Council Depot) | 13.2 | 13.4 | in 1987* | 11.8 | |
| larapuna (Eddystone Point) | 13.1 | 13.2 | in 2001 | 11.4 | |
| Liawenee | 5.8 | 6.1 | in 2001 | 4.3 | |
| Scottsdale (West Minstone Road) | 10.8 | 11.4 | in 2001 | 9.5 | |
| Tunnack Fire Station | 9.0 | 9.3 | in 2001 | 7.9 | |
| Luncheon Hill (Forestry) | 10.1 | 10.8 | in 2001* | 9.0 | |
* note: there are gaps in the historical record at this site, so it is possible a higher value has gone unreported
Extremes Maps Records Summaries Important notes the top
| Summary statistics for September 2023 | ||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Maximum temperatures (°C) |
Minimum temperatures (°C) |
Rainfall (millimetres) |
||||||||||
| Mean for September 2023 |
Diff from average |
Highest for September 2023 |
Mean for September 2023 |
Diff from average |
Lowest for September 2023 |
Total for September 2023 |
Average for September |
Rank of September 2023 |
Fraction of September average |
|||
| Northern (district 91) | ||||||||||||
| Cape Grim | 14.2 | +1.0 | 19.7 | 30th | 9.4 | +0.8 | 5.4 | 26th | 37.4 | 76.0 | v low | 49% |
| Cressy (Brumbys Creek) | 16.5 | 20.8 | 29th | 4.5 | -1.8 | 22nd | 18.8 | |||||
| Devonport Airport | 15.7 | +1.3 | 19.9 | 25th | 6.8 | +0.7 | 1.8 | 22nd | 23.8 | 72.2 | v low | 33% |
| Launceston (Ti Tree Bend) | 17.3 | +1.6 | 22.9 | 25th | 6.2 | +1.0 | 1.3 | 10th | 29.6 | 63.0 | low | 47% |
| Launceston Airport | 16.5 | +1.4 | 21.4 | 29th | 4.7 | +0.7 | 0.3 | 1st | 26.4 | 52.3 | v low | 50% |
| Low Head | 15.2 | +1.2 | 20.6 | 30th | 9.2 | +0.7 | 4.7 | 2nd | 20.0 | 55.6 | lowest | 36% |
| Luncheon Hill (Forestry) | 14.1 | +1.6 | 22.9 | 14th | 6.1 | +0.7 | 2.6 | 22nd | 108.6 | 163.4 | low | 66% |
| Marrawah | 15.0 | +1.3 | 20.8 | 30th | 8.3 | +0.8 | 4.2 | 2nd | 52.6 | 102.6 | v low | 51% |
| Scottsdale (West Minstone Road) | 15.7 | +1.4 | 20.6 | 30th | 5.9 | +1.1 | 0.8 | 1st | 34.8 | 92.2 | v low | 38% |
| Sheffield School Farm | 14.7 | +1.5 | 20.6 | 14th | 4.7 | 0.0 | 0.7 | 22nd | 35.2 | 112.2 | lowest | 31% |
| Smithton Aerodrome | 16.1 | +1.3 | 19.9 | 14th | 6.5 | +0.3 | 0.7 | 5th | 51.0 | 94.8 | v low | 54% |
| Wynyard Airport | 16.1 | +1.6 | 21.4 | 29th | 5.5 | +0.5 | 0.6 | 22nd | 44.2 | 93.5 | low | 47% |
| East Coast (district 92) | ||||||||||||
| Bicheno (Council Depot) | 17.7 | +1.5 | 27.0 | 30th | 8.7 | +1.2 | 3.4 | 11th | 12.1 | 44.7 | low | 27% |
| Fingal (Fleming St) | 17.2 | 24.3 | 30th | 2.9 | -2.7 | 10th | 9.6 | |||||
| Friendly Beaches | 18.5 | +1.7 | 27.2 | 30th | 7.9 | +0.5 | 2.1 | 2nd | 11.6 | 45.5 | v low | 25% |
| larapuna (Eddystone Point) | 17.1 | +2.3 | 22.5 | 30th | 9.0 | +1.1 | 4.8 | 10th | 16.2 | 62.8 | v low | 26% |
| Maria Island (Point Lesueur) | 16.1 | +1.0 | 23.2 | 30th | 9.0 | +0.6 | 5.1 | 11th | 16.6 | 44.5 | low | 37% |
| St Helens Aerodrome | 17.7 | +1.6 | 24.6 | 30th | 7.6 | +1.0 | 2.0 | 10th | 5.2 | 53.0 | lowest | 10% |
| Swan Island | 15.8 | +1.1 | 19.6 | 30th | 10.2 | +1.0 | 6.4 | 1st | 15.2 | 47.9 | v low | 32% |
| Swansea (Francis Street) | 17.8 | +1.4 | 27.3 | 30th | 5.8 | -0.2 | -0.7 | 11th | 13.2 | 41.8 | low | 32% |
| Midlands (district 93) | ||||||||||||
| Ross (The Boulevards) | 16.5 | +1.9 | 23.2 | 30th | 2.5 | -1.0 | -4.4 | 22nd | 13.4 | 49.4 | lowest | 27% |
| Southeast (district 94) | ||||||||||||
| Campania (Kincora) | 18.5 | +2.3 | 25.2 | 13th | 4.8 | -0.5 | -1.2 | 22nd | 37.4 | 43.9 | average | 85% |
| Cape Bruny (Cape Bruny) | 15.4 | +0.9 | 21.7 | 13th | 7.9 | +0.4 | 4.9 | 21st | 63.4 | 68.6 | average | 92% |
| Dennes Point | 16.5 | +1.6 | 24.0 | 13th | 7.3 | -0.2 | 3.0 | 22nd | 29.8 | 37.7 | low | 79% |
| Dover | 16.0 | +1.2 | 23.3 | 13th | 5.1 | +0.1 | 1.0 | 22nd | 80.8 | 82.8 | average | 98% |
| Dunalley (Stroud Point) | 16.8 | +1.4 | 23.7 | 19th | 8.0 | +0.1 | 4.5 | 2nd | 24.6 | 41.4 | low | 59% |
| Grove (Research Station) | 16.9 | +1.5 | 24.3 | 14th | 3.5 | -0.8 | -2.2 | 11th | 67.0 | 73.9 | average | 91% |
| Hobart (Ellerslie Road) | 17.5 | +2.3 | 24.1 | 30th | 7.4 | +0.9 | 1.8 | 22nd | 38.4 | 52.8 | average | 73% |
| Hobart Airport | 17.9 | 26.0 | 30th | 5.7 | -1.8 | 11th | 17.0 | |||||
| kunanyi (Mount Wellington Pinnacle) | 7.7 | +3.0 | 15.6 | 13th | 0.0 | +1.1 | -5.0 | 11th | 44.0 | 71.5 | low | 62% |
| Maatsuyker Island Lighthouse | 13.1 | +0.9 | 20.3 | 4th | 7.9 | +1.0 | 5.0 | 9th | 101.6 | 107.6 | average | 94% |
| Tasman Island | 14.2 | +1.6 | 21.3 | 19th | 7.7 | +0.7 | 3.6 | 22nd | 51.0 | 71.4 | average | 71% |
| Tunnack Fire Station | 14.9 | +2.4 | 22.6 | 14th | 3.2 | 0.0 | -5.0 | 22nd | 18.8 | 56.8 | v low | 33% |
| Derwent Valley (district 95) | ||||||||||||
| Bushy Park (Bushy Park Estates) | 18.0 | +2.5 | 24.0 | 14th | 3.5 | -0.4 | -2.4 | 4th | 49.2 | 53.4 | average | 92% |
| Ouse Fire Station | 17.5 | +1.8 | 24.7 | 14th | 3.3 | -0.6 | -3.2 | 4th | 52.8 | 63.4 | average | 83% |
| Central Plateau (district 96) | ||||||||||||
| Butlers Gorge | 12.5 | +2.3 | 21.2 | 14th | 1.5 | +0.4 | -6.0 | 26th | 186.2 | 168.5 | average | 111% |
| Liawenee | 11.4 | +2.4 | 20.5 | 14th | 0.1 | +0.5 | -6.8 | 26th | 27.8 | 101.4 | lowest | 27% |
| West Coast (district 97) | ||||||||||||
| Cape Sorell | 15.5 | +2.2 | 21.2 | 14th | 9.4 | +1.5 | 4.5 | 26th | 66.4 | 117.9 | v low | 56% |
| Hartz Mountain (Keoghs Pimple) | 9.9 | +1.3 | 19.0 | 14th | 2.4 | +0.5 | -1.0 | 11th | 107.4 | 98.1 | average | 109% |
| Low Rocky Point | 14.4 | +0.4 | 22.4 | 4th | 8.2 | +0.5 | 4.3 | 26th | 76.2 | 125.5 | v low | 61% |
| Mount Read | 7.2 | +1.6 | 16.3 | 14th | 1.1 | +0.7 | -2.4 | 9th | 320.8 | 357.0 | average | 90% |
| Scotts Peak Dam | 14.0 | +1.5 | 20.2 | 24th | 5.1 | +0.8 | 1.8 | 26th | 189.4 | 205.6 | average | 92% |
| Strahan Aerodrome | 15.8 | +1.4 | 24.5 | 14th | 7.2 | +0.9 | 0.6 | 26th | 105.2 | 146.5 | low | 72% |
| Warra | 12.6 | +1.1 | 20.5 | 14th | 4.1 | +0.6 | 0.3 | 3rd | 260.4 | 193.3 | high | 135% |
| King Island (district 98) | ||||||||||||
| King Island Airport | 16.3 | +1.6 | 24.4 | 14th | 8.8 | +0.4 | 3.7 | 3rd | 29.4 | 83.8 | v low | 35% |
| Flinders Island (district 99) | ||||||||||||
| Flinders Island Airport | 16.9 | +1.7 | 24.9 | 30th | 7.8 | +0.2 | 0.8 | 2nd | 23.0 | 61.4 | v low | 37% |
| Hogan Island | 24.7 | 30th | 10.2 | +1.0 | 6.8 | 9th | 21.4 | 51.7 | v low | 41% | ||
| 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 at 3 pm on Sunday 1 October 2023. 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, which vary widely from site to site.
They are not shown for sites with less 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
