Tasmania in August 2023

Rainfall

  • Rainfall in August was below average for most parts and very much below average for an area of the south-east extending into the interior.
  • The rainfall total for Tasmania as a whole was 28% below the August average (based on 1961–1990) and the lowest since 2014.
  • The wettest day was the 5th when Lake Margaret Dam recorded 63.8 mm associated with a rain band crossing the state.
  • Snow settled on the ground across elevated regions of southern Tasmania on the 13th.

Temperature

  • Maximum temperatures were very much above average for most parts of the state, while minimum temperatures were above average to very much above average.
  • The mean maximum temperature for Tasmania was 1.30 °C warmer than average (based on 1961-1990), and the 5th highest in 114 years of data.
  • The mean minimum temperature for Tasmania was 1.15 °C warmer than average (based on 1961-1990).
  • Some sites had their highest August mean daily maximum temperature on record including larapuna (Eddystone Point) with 112 years of data.
  • Hobart (Ellerslie Road) had its highest August mean daily maximum temperature since 1982.
  • Campania (Kincora) had its lowest August temperature on record.

Hobart (Ellerslie Road)

  • Total rainfall for Hobart (Ellerslie Road) was 16.8 mm, which is 31% of the long-term average of 54.0 mm.
  • The mean daily maximum temperature for Hobart (Ellerslie Road) was 15.2 °C, which is 2.1 °C above the long-term average of 13.1 °C.
  • The warmest day was 19.6 °C on the 3rd, and the coolest day was on the 13th when the temperature reached 11.3 °C.
  • The mean daily minimum temperature for Hobart (Ellerslie Road) was 6.3 °C, which is 1.1 °C above the long-term average of 5.2 °C.
  • The coldest morning was 1.7 °C on the 16th, and the warmest morning was on the 4th when the minimum temperature was 10.4 °C.

Extremes in August 2023
Hottest day 20.6 °C at Hobart Airport on the 29th
Warmest days on average 16.0 °C at Friendly Beaches
Coolest days on average 4.3 °C at kunanyi (Mount Wellington Pinnacle)
Coldest day -0.8 °C at kunanyi (Mount Wellington Pinnacle) on the 13th
Coldest night -6.6 °C at Liawenee on the 27th
Coolest nights on average -0.8 °C at kunanyi (Mount Wellington Pinnacle)
Warmest nights on average 9.6 °C at Hogan Island
Warmest night 13.1 °C at Cape Grim on the 4th
Warmest on average overall 12.0 °C at Hogan Island
Coolest on average overall 1.7 °C at kunanyi (Mount Wellington Pinnacle)
Wettest overall 461.0 mm at Mount Read
Wettest day 63.8 mm at Lake Margaret Dam on the 5th
Strongest wind gust 141 km/h at Maatsuyker Island Lighthouse on the 1st

Maps
ObservedAnomalyDecile rank
Total
rainfall
Map of Rainfall totals Map of Percentage of normal rainfall Map of Rainfall deciles
Mean
daily
maximum
temperatures
Map of Mean maximum temperature Map of Anomaly in mean maximum temperature Map of Decile rank of mean maximum temperature
Mean
daily
minimum
temperatures
Map of Mean minimum temperature Map of Anomaly in mean minimum temperature Map of Decile rank of mean minimum temperature

Click on a map to show it full size in a pop-up window


Record highest August mean daily maximum temperature
New record
(°C)
Old
record
Years of
record
Average for
August
larapuna (Eddystone Point) 15.4 = 15.4 in 2011 112 13.6
Launceston (Ti Tree Bend) 15.2 15.1 in 1982 40 13.8
Wynyard Airport 14.4 14.3 in 2011 36 13.3
Devonport Airport 14.4 14.1 in 2022 31 13.2
Ross (The Boulevards) 14.0 13.6 in 2014 29 12.5
Friendly Beaches 16.0 = 16.0 in 2005 26 14.7
Smithton Aerodrome 14.5 14.4 in 2011 26 13.6
Tunnack Fire Station 12.0 11.5 in 2006 26 10.5
Low Head 13.9 13.7 in 1999 25 13.1
Campania (Kincora) 15.8 = 15.8 in 2006 23 14.1
St Helens Aerodrome 15.5 = 15.5 in 2006 22 14.2
Swan Island 14.1 = 14.1 in 2014 21 13.5

Highest August mean daily maximum temperature for at least 20 years
Observed
(°C)
Most recent
higher
Average for
August
Hobart (Ellerslie Road) 15.2 15.7 in 1982 13.1



Record lowest August temperature
New record
(°C)
Old
record
Years of
record
Average for
August
Campania (Kincora) -3.1 on the 16th = -3.1 on the 3rd in 2017 24 3.9



Summary statistics for August 2023
Maximum temperatures
(°C)
Minimum temperatures
(°C)
Rainfall
(millimetres)
Mean for
August
2023
Diff
from
average
Highest for
August
2023
Mean for
August
2023
Diff
from
average
Lowest for
August
2023
Total for
August
2023
Average
for
August
Rank of
August
2023
Fraction of
August
average
Northern (district 91)
Cape Grim 13.0 +0.6 16.0 4th 9.0 +1.0 4.6 14th 64.0 122.7 v low 52%
Cressy (Brumbys Creek) 14.1   16.8 19th 3.4   -2.8 13th 57.2
Devonport Airport 14.4 +1.2 17.6 19th 6.1 +1.1 -0.3 15th 59.0 88.3 low 67%
Launceston (Ti Tree Bend) 15.2 +1.4 18.3 10th 4.7 +1.1 -1.4 15th 47.4 82.9 low 57%
Launceston Airport 14.1 +1.2 16.7 30th 3.7 +0.9 -2.1 15th 42.2 75.8 average 56%
Low Head 13.9 +0.8 15.8 28th 8.2 +1.0 2.8 15th 50.2 76.1 average 66%
Luncheon Hill (Forestry) 11.9 +0.7 15.2 3rd 5.7 +0.8 1.4 13th 165.0 205.4 average 80%
Marrawah 13.7 +1.0 16.2 4th 7.8 +0.8 3.5 14th 93.0 134.5 low 69%
Scottsdale (West Minstone Road) 13.6 +1.1 15.9 30th 4.8 +0.9 -0.2 16th 80.2 116.1 low 69%
Sheffield School Farm 12.5 +0.9 15.4 20th 4.3 +0.7 -1.0 13th 96.6 129.8 average 74%
Smithton Aerodrome 14.5 +0.9 17.3 3rd 6.2 +1.1 0.3 13th 83.8 122.5 low 68%
Wynyard Airport 14.4 +1.1 16.2 23rd 5.1 +1.2 -0.9 13th 77.6 115.9 low 67%
East Coast (district 92)
Bicheno (Council Depot) 15.9 +1.2 19.4 19th 7.0 +0.6 2.8 16th 21.0 50.6 low 42%
Fingal (Fleming St) 14.5   17.9 20th 1.3   -5.2 16th 25.2
Friendly Beaches 16.0 +1.3 18.5 29th 6.0 -0.1 0.5 16th 24.2 54.1 low 45%
larapuna (Eddystone Point) 15.4 +1.8 18.7 19th 8.1 +1.2 3.4 15th 38.4 69.6 low 55%
Maria Island (Point Lesueur) 14.3 +1.0 17.9 21st 8.2 +0.8 5.2 16th 18.4 41.1 low 45%
St Helens Aerodrome 15.5 +1.3 18.7 25th 6.2 +1.0 0.6 14th 34.8 55.9 average 62%
Swan Island 14.1 +0.6 15.9 4th 9.4 +1.1 4.9 15th 33.2 55.3 low 60%
Swansea (Francis Street) 15.3 +0.9 19.2 29th 4.3 -0.2 -1.2 16th 25.4 35.9 average 71%
Midlands (district 93)
Ross (The Boulevards) 14.0 +1.5 17.2 19th 1.4 -0.6 -5.1 14th 50.2 47.7 average 105%
Southeast (district 94)
Campania (Kincora) 15.8 +1.7 20.1 24th 4.3 +0.4 -3.1 16th 12.2 51.7 v low 24%
Cape Bruny (Cape Bruny) 13.6 +0.8 18.2 3rd 7.2 +0.6 3.8 15th 44.8 87.0 v low 51%
Dennes Point 14.5 +1.4 19.1 21st 6.9 +0.7 2.6 16th 25.8 54.5 low 47%
Dover 13.6 +0.5 18.2 3rd 4.2 +0.3 -0.8 15th 40.7 91.2 v low 45%
Dunalley (Stroud Point) 14.5 +1.2 19.4 29th 7.0 +0.8 2.4 16th 15.6 48.2 v low 32%
Grove (Research Station) 14.6 +1.2 19.3 3rd 2.9 +0.2 -3.4 16th 30.6 86.8 v low 35%
Hobart (Ellerslie Road) 15.2 +2.1 19.6 3rd 6.3 +1.1 1.7 16th 16.8 54.0 v low 31%
Hobart Airport 15.5   20.6 29th 5.0   0.1 27th 9.2
kunanyi (Mount Wellington Pinnacle) 4.3 +1.5 8.5 29th -0.8 +0.9 -4.6 15th 19.6 83.9 v low 23%
Maatsuyker Island Lighthouse 11.4 +0.2 16.1 4th 7.5 +1.0 5.0 14th 140.0 123.7 high 113%
Tasman Island 12.0 +0.6 16.8 21st 7.2 +0.8 4.6 13th 41.2 77.3 low 53%
Tunnack Fire Station 12.0 +1.5 16.5 29th 2.1 +0.2 -4.8 14th 17.0 61.7 lowest 28%
Derwent Valley (district 95)
Bushy Park (Bushy Park Estates) 15.0 +1.8 20.0 29th 2.5 +0.2 -3.9 16th 19.0 53.9 v low 35%
Ouse Fire Station 14.6 +1.1 18.6 3rd 2.4 +0.4 -4.6 15th 18.0 61.2 v low 29%
Central Plateau (district 96)
Butlers Gorge 9.1 +1.1 14.4 28th 1.5 +1.5 -5.5 9th 131.2 185.1 average 71%
Liawenee 8.1 +1.6 11.7 29th -0.4 +0.9 -6.6 27th 39.4 123.8 lowest 32%
West Coast (district 97)
Cape Sorell 13.5 +1.3 16.1 29th 8.4 +1.1 3.7 14th 149.6 147.9 average 101%
Hartz Mountain (Keoghs Pimple) 6.7 +0.1 11.2 3rd 1.8 +0.5 -1.4 26th 84.0 127.1 low 66%
Low Rocky Point 12.9 +0.3 16.2 4th 7.8 +1.1 2.4 14th 149.8 150.1 average 100%
Mount Read 4.5 +0.5 7.9 28th 0.7 +0.7 -2.7 13th 461.0 368.0 high 125%
Scotts Peak Dam 10.7 +0.3 16.1 28th 4.1 +0.7 -0.8 14th 165.6 227.0 low 73%
Strahan Aerodrome 13.5 +0.4 17.4 3rd 6.9 +1.2 0.4 14th 204.6 180.7 average 113%
Warra 9.9 +0.5 15.1 3rd 3.4 +0.8 -2.3 14th 134.4 229.8 v low 58%
King Island (district 98)
King Island Airport 14.4 +0.7 17.1 29th 8.0 +0.2 0.3 14th 61.0 113.6 low 54%
Flinders Island (district 99)
Flinders Island Airport 14.8 +1.0 18.5 28th 7.3 +0.7 -0.4 14th 34.0 74.9 low 45%
Hogan Island 14.4 +1.1 18.1 4th 9.6 +0.9 6.8 14th 23.8 72.4 v low 33%
Note: From 2017, information about Macquarie Island can be found in the climate summary for the Remote Islands and Antarctica

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 10 am on Friday 1 September 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.


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