Monday 1 June 2026 - Seasonal Climate Summary for Australian Capital Territory - Product code IDCKGC25L0

Australian Capital Territory in autumn 2026

Rainfall

  • Rainfall totals for autumn were above average at all sites across Australian Capital Territory.
  • Autumn rainfall totals ranged from around 116% to around 158% of average across the Territory.
  • The wettest day was 65.4 mm at Nicholls (Gungahlin Lakes) on 20 March.
  • The wettest overall was 285.6 mm at Mount Ginini AWS.

Temperature

  • Mean maximum temperatures for autumn at sites across the Territory were above average.
  • Autumn mean maximum temperatures for the Territory ranged from 0.6 °C above average at Mount Ginini AWS to 0.7 °C above average at Canberra Airport and Tuggeranong (Isabella Plains) AWS.
  • The warmest day was 30.8 °C at Tuggeranong (Isabella Plains) AWS on 6 March.
  • The coldest day was 0.1 °C at Mount Ginini AWS on 7 May.
  • Mean minimum temperatures for autumn at sites across the Territory were above average.
  • Autumn mean minimum temperatures for the Territory ranged from 0.4 °C above average at Tuggeranong (Isabella Plains) AWS to 1.2 °C above average at Mount Ginini AWS.
  • The warmest night was 18.7 °C at Tuggeranong (Isabella Plains) AWS on 4 March.
  • The coldest night was -4.5 °C at Mount Ginini AWS on 7 May.

Canberra Airport

  • Total rainfall for Canberra Airport was 159.8 mm, which is 116% of the long-term average at the current site of 138.1 mm.
  • The mean daily maximum temperature for Canberra Airport was 21.7 °C, which is 0.7 °C above the long-term average at the current site of 21.0 °C.
  • The warmest day was 30.4 °C on 6 March 2026, and the coolest day was on 7 May 2026 when the temperature reached 12.3 °C.
  • The mean daily minimum temperature for Canberra Airport was 7.6 °C, which is 0.7 °C above the long-term average at the current site of 6.9 °C.
  • The coldest morning was -1.8 °C on 18 April 2026, and the warmest morning was on 4 March 2026 when the minimum temperature was 18.7 °C.

Extremes Records Summaries Important notes the top

Extremes in autumn 2026
Hottest day 30.8 °C at Tuggeranong (Isabella Plains) AWS on 6 March
Warmest days on average 21.6 °C at Canberra Airport
Coolest days on average 12.4 °C at Mount Ginini AWS
Coldest day 0.1 °C at Mount Ginini AWS on 7 May
Coldest night -4.5 °C at Mount Ginini AWS on 7 May
Coolest nights on average 5.3 °C at Mount Ginini AWS
Warmest nights on average 7.6 °C at Canberra Airport
Warmest night 18.7 °C at Tuggeranong (Isabella Plains) AWS on 4 March
Warmest on average overall 14.6 °C at Canberra Airport
Coolest on average overall 8.9 °C at Mount Ginini AWS
Wettest overall 285.6 mm at Mount Ginini AWS
Wettest day 65.4 mm at Nicholls (Gungahlin Lakes) on 20 March
Strongest wind gust 98.0 km/h at Mount Ginini AWS on 27 March

Extremes Records Summaries Important notes the top

Extremes Records Summaries Important notes the top

Summary statistics for autumn 2026
Maximum temperatures
(°C)		 Minimum temperatures
(°C)		 Rainfall
(millimetres)
Mean for
Autumn
2026		 Diff
from
average		 Highest for
Autumn
2026		 Mean for
Autumn
2026		 Diff
from
average		 Lowest for
Autumn
2026		 Total for
Autumn
2026		 Average
for
Autumn		 Rank of
Autumn
2026		 Fraction of
Autumn
average
Canberra Airport 21.7 +0.7 30.4 6 Mar 2026 7.6 +0.7 -1.8 18 Apr 2026 159.8 138.1 average 116%
Mount Ginini AWS 12.5 +0.6 22.1 7 Mar 2026 5.3 +1.2 -4.5 7 May 2026 285.6 223.9 high 128%
Tuggeranong (Isabella Plains) AWS 21.6 +0.7 30.8 6 Mar 2026 7.5 +0.4 -1.4 22 May 2026 200.2 126.8 high 158%

Extremes Records Summaries Important notes the top

Notes

The Seasonal climate summary, usually published in the first week of the following month, lists the main features of the weather in Australian Capital Territory 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 Monday 1 June 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.

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