Northern Territory in May to September 2025

Rainfall

  • Average rainfall across the Northern Territory during the northern dry season (May to September) was 47.44 mm, 27% above the 1961–1990 average.
  • Rainfall was above to very much above average for much of the Northern Territory. This was largely due to a cloud band and trough that brought unseasonable rainfall to parts of the Northern Territory during May, and early season showers and thunderstorms in September.
  • Rainfall was below to very much below average for an area of the Carpentaria and Lasseter districts.
  • Many sites had their highest May to September daily rainfall on record, with many sites recording their highest daily rainfall on 28 May, including 184.0 mm at Katherine Council.
  • Tindal RAAF and Upper Fergusson River had their highest total May to September rainfall on record.

Temperature

  • The mean maximum temperature across the Northern Territory during the dry season (May to September) was 0.60 °C above the 1961–1990 average.
  • Maximum temperatures were above to very much above average across the Top End and southern parts of the Northern Territory.
  • Victoria River Downs and McArthur River Mine Airport had their hottest May to September day (highest daily maximum temperature) on record at 41.7 °C and 40.9 °C respectively, towards the end of September.
  • The mean minimum temperature across the Northern Territory was 0.22 °C below the 1961–1990 average.
  • Minimum temperatures were above average for areas in the the Top End, east and south, and in contrast below average for large parts of central and southern Northern Territory.
  • On 4 August, Tennant Creek Airport had its coldest May to September night (lowest daily minimum temperature) on record at 4.1 °C.
  • The mean temperature across the Northern Territory was 0.60 °C above the 1961–1990 average.

Darwin Airport

  • Total rainfall for Darwin Airport was 54.0 mm, which is 121% of the long-term average of 44.5 mm.
  • The mean daily maximum temperature for Darwin Airport was 32.2 °C, which is 0.6 °C above the long-term average of 31.6 °C.
  • The warmest day was 36.0 °C on the 7 Sep 2025, and the coolest day was on the 15 Jun 2025 when the temperature reached 28.4 °C.
  • The mean daily minimum temperature for Darwin Airport was 21.2 °C, which is 0.2 °C above the long-term average of 21.0 °C.
  • The coldest morning was 14.9 °C on the 4 Jul 2025, and the warmest morning was on the 21 Sep 2025 when the minimum temperature was 26.3 °C.

Alice Springs Airport

  • Total rainfall for Alice Springs Airport was 77.0 mm, which is 125% of the long-term average of 61.6 mm.
  • The mean daily maximum temperature for Alice Springs Airport was 23.0 °C, which is 0.3 °C above the long-term average of 22.7 °C.
  • The warmest day was 36.4 °C on the 29 Sep 2025, and the coolest day was on the 28 May 2025 when the temperature reached 11.3 °C.
  • The mean daily minimum temperature for Alice Springs Airport was 5.5 °C, which is 1.2 °C below the long-term average of 6.7 °C.
  • The coldest morning was -2.1 °C on the 2 Aug 2025, and the warmest morning was on the 9 Sep 2025 when the minimum temperature was 19.3 °C.

Extremes in May to September 2025
Hottest day 41.7 °C at Victoria River Downs on 20 September
Warmest days on average 34.2 °C at Oenpelli Airport
Coolest days on average 23.0 °C at Alice Springs Airport
Coldest day 11.2 °C at Watarrka on 27 May
Coldest night -2.1 °C at Alice Springs Airport on 2 August
-2.1 °C at Yulara Airport on 23 July
Coolest nights on average 5.5 °C at Alice Springs Airport
Warmest nights on average 24.4 °C at McCluer Island
Warmest night 27.1 °C at Bradshaw - Angallari Valley (Defence) on 27 May
27.1 °C at Bradshaw - Angallari Valley (Defence) on 30 September
Warmest on average overall 27.4 °C at Oenpelli Airport
27.4 °C at Jabiru Airport
Coolest on average overall 14.3 °C at Alice Springs Airport
Wettest overall 200.8 mm at Katherine - Cragborn Rd
Wettest day 197.8 mm at Katherine - Cragborn Rd on 28 May
Strongest wind gust 93.0 km/h at Alice Springs Airport on 25 July

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 May to September daily rainfall
New record
(mm)
Old
record
Years of
record
Average for
May to September
Katherine Council 184.0 on 28 May 90.9 on 29 Sep 1895 146 15.0
Douglas River Research Farm 61.0 on 22 September 52.8 on 07 May 1990 54 17.4
Suplejack 75.0 on 28 May 46.8 on 01 Jul 2023 42 27.7
Tindal RAAF 179.8 on 28 May 65.4 on 29 Sep 1986 41 15.2
Territory Grape Farm 69.8 on 28 May 60.0 on 21 May 1990 37 49.0
Rabbit Flat 77.6 on 28 May 41.6 on 23 Sep 2024 28 32.5
Delamere Weapons Range 54.4 on 28 May 36.6 on 29 May 2010 27 12.2
Geriatric Park 110.0 on 12 September 52.2 on 13 Jul 2016 27 50.2
Upper Fergusson River 89.8 on 28 May 49.4 on 29 Sep 2022 25 13.6
Point Stuart 55.8 on 1 August 42.4 on 03 May 2012 24 30.3
Maningrida Airport 45.0 on 5 May 39.4 on 06 May 2013 21 34.7
Central Arnhem Plateau 38.0 on 28 May 35.0 on 18 May 2010 20 16.5



Record highest May to September total rainfall
New record
(mm)
Old
record
Years of
record
Average for
May to September
Tindal RAAF 181.6 146.0 in 1986 41 15.2
Upper Fergusson River 96.8 77.2 in 2022 25 13.6



Record highest May to September temperature
New record
(°C)
Old
record
Years of
record
Average for
May to September
Victoria River Downs 41.7 on 20 September 41.4 on 26 Sep 2022 61 31.8
McArthur River Mine Airport 40.9 on 29 September =40.9 on 21 Sep 2022 49 32.1



Record lowest May to September temperature
New record
(°C)
Old
record
Years of
record
Average for
May to September
Tennant Creek Airport 4.1 on 4 August 4.5 on 14 Jul 1978 57 14.9




Summary statistics for May to September 2025
Maximum temperatures
(°C)
Minimum temperatures
(°C)
Rainfall
(millimetres)
Mean for
May to September
2025
Diff
from
average
Highest for
May to September
2025
Mean for
May to September
2025
Diff
from
average
Lowest for
May to September
2025
Total for
May to September
2025
Average
for
May to September
Rank of
May to September
2025
Fraction of
May to September
average
Darwin-Daly (district 14GA)
Batchelor Airport 33.1 -0.2 38.7 29 Sep 2025 18.4 +0.3 10.5 4 Jul 2025 44.2 36.5 average 121%
Central Arnhem Plateau 30.6 -0.1 37.5 29 Sep 2025 17.5 +0.2 9.3 11 Aug 2025 54.8 16.5 high 332%
Channel Point 35.2 23 Sep 2025 14.1 2 Jul 2025 19.4 28.7 average 68%
Charles Point 30.7 0.0 35.6 23 Sep 2025 21.7 -0.4 16.8 4 Jul 2025 48.4 45.6 average 106%
Croker Island Airport 34.8 22 Sep 2025 4.8 15.8 low 30%
Darwin Airport 32.2 +0.6 36.0 7 Sep 2025 21.2 +0.2 14.9 4 Jul 2025 54.0 44.5 high 121%
Delamere Weapons Range 31.6 -0.1 40.1 20 Sep 2025 16.8 -0.3 7.9 4 Aug 2025 57.8 12.2 high 474%
Douglas River Research Farm 33.5 -0.1 39.1 20 Sep 2025 15.4 +0.1 6.2 4 Aug 2025 109.2 17.4 high 629%
Dum In Mirrie Airstrip 32.3 +1.0 37.4 23 Sep 2025 19.8 -0.5 13.5 16 Jun 2025 24.6 45.2 average 54%
East Point 31.8 36.2 23 Sep 2025 21.5 15.6 4 Jul 2025 84.4
Jabiru Airport 34.0 +0.4 39.7 29 Sep 2025 20.9 +0.6 14.1 12 Aug 2025 28.0 34.5 average 81%
Kangaroo Flats (Defence) 33.7 40.0 29 Sep 2025 20.0 12.9 4 Jul 2025 12.6
Knuckey Lagoon 32.8 36.6 11 Sep 2025 19.3 11.7 11 Aug 2025 99.8
McCluer Island 28.7 +0.2 31.6 22 Sep 2025 24.4 +0.2 21.0 3 Aug 2025 23.6 53.1 average 44%
Middle Point 33.7 -0.2 38.5 29 Sep 2025 17.6 +0.8 10.2 20 Aug 2025 58.8 37.0 high 159%
Mount Bundey North (Defence) 33.4 39.0 29 Sep 2025 20.3 14.9 6 Aug 2025 41.4
Mount Bundey South (Defence) 33.5 39.3 20 Sep 2025 18.4 10.6 20 Aug 2025 109.4
Murganella Airstrip 32.1 +0.1 35.5 30 Sep 2025 18.2 -0.2 8.0 11 Aug 2025 46.6 31.4 high 149%
Noonamah Airstrip 34.1 -0.1 38.6 29 Sep 2025 18.6 +0.1 10.8 4 Jul 2025 16.2 36.6 average 44%
Oenpelli Airport 34.2 -0.4 38.9 29 Sep 2025 20.6 +0.3 11.3 11 Aug 2025 48.6 34.0 high 143%
Pirlangimpi Airport 32.8 +0.5 36.7 24 Sep 2025 20.6 +0.6 15.0 12 Aug 2025 16.2 60.9 low 27%
Point Stuart 32.0 -0.2 36.5 23 Aug 2025 19.7 -0.2 12.9 11 Aug 2025 130.6 30.3 high 431%
Port Keats Airport 32.3 0.0 37.4 24 Sep 2025 18.7 +0.3 10.9 5 Aug 2025 46.6 28.6 high 163%
Tindal RAAF 32.3 -0.1 39.2 29 Sep 2025 16.1 0.0 7.1 3 Aug 2025 181.6 15.2 highest 1194%
Arnhem (district 14BC)
Gove Airport 29.5 34.1 30 Sep 2025 21.9 15.9 11 Aug 2025 99.2
Groote Eylandt Airport 29.9 -0.4 36.7 30 Sep 2025 18.4 +1.2 10.4 5 Aug 2025 38.0 46.6 average 82%
Maningrida Airport 31.5 0.0 36.2 23 Sep 2025 20.0 +0.3 13.0 15 Jun 2025 58.8 34.7 high 169%
Milingimbi Airport 36.4 23 Sep 2025 20.5 -0.1 13.3 11 Aug 2025 70.6 38.1 high 185%
Ngayawili 30.7 0.0 34.4 22 Sep 2025 21.2 +0.5 13.2 11 Aug 2025 57.0 38.2 high 149%
Warruwi Airport 30.2 +0.3 34.2 22 Sep 2025 22.8 +0.2 17.6 12 Aug 2025 15.6 22.5 average 69%
Roper-Mcarthur (district 14DE)
Borroloola Airport 32.3 +0.1 39.8 29 Sep 2025 14.2 -0.2 4.9 14 Jun 2025 0.2 13.5 v low 2%
Bulman 32.2 -0.5 40.1 30 Sep 2025 15.8 -0.4 6.5 15 Jun 2025 30.6 28.5 high 107%
Centre Island 27.8 -0.5 33.4 30 Sep 2025 20.7 +0.2 15.8 5 Aug 2025 3.2 18.2 low 18%
Daly Waters Airstrip 31.8 +0.6 40.0 30 Sep 2025 13.0 -1.0 1.3 4 Aug 2025 10.8 13.9 average 78%
McArthur River Mine Airport 32.5 +0.4 40.9 29 Sep 2025 14.8 +0.2 4.6 21 Jul 2025 0.0 11.6 lowest 0%
Ngukurr Airport 32.4 -0.6 41.0 30 Sep 2025 6.8 3 Aug 2025 0.2 15.4 v low 1%
Victoria (district 14F)
Bradshaw 33.7 -0.2 40.6 20 Sep 2025 16.8 -1.1 7.5 4 Aug 2025 36.8 15.5 high 238%
Bradshaw - Angallari Valley (Defence) 33.6 40.9 20 Sep 2025 18.7 9.5 4 Aug 2025 1.8
Bradshaw - Koolendong Valley (Defence) 33.3 39.6 30 Sep 2025 13.9 3.9 4 Aug 2025 68.0
Lajamanu Airport 29.6 -0.1 40.2 30 Sep 2025 12.3 0.0 3.3 3 Aug 2025 69.8 23.4 high 299%
Victoria River Downs 32.8 +1.0 41.7 20 Sep 2025 13.7 -0.3 4.7 3 Aug 2025 1.0 16.6 average 6%
Barkly (district 15A)
Elliott 40.8 30 Sep 2025 2.0 9 Jul 2025 28.0 20.5 high 137%
Tennant Creek Airport 27.2 -0.1 38.4 30 Sep 2025 14.4 -0.5 4.1 4 Aug 2025 53.6 30.7 high 175%
Alice Springs (district 15B)
Alice Springs Airport 23.0 +0.3 36.4 29 Sep 2025 5.5 -1.2 -2.1 2 Aug 2025 77.0 61.6 high 125%
Curtin Springs 36.5 29 Sep 2025 7.0 +0.3 -1.5 23 Jul 2025 39.2 59.5 average 66%
Jervois 24.2 -0.7 37.7 29 Sep 2025 8.2 +0.1 -1.3 3 Aug 2025 98.6 53.1 high 186%
Rabbit Flat 28.7 -0.4 40.8 30 Sep 2025 8.7 -1.1 -1.4 30 Jun 2025 99.0 32.5 high 304%
Walungurru Airport 25.9 -0.6 37.6 29 Sep 2025 12.7 -0.6 5.1 26 Jul 2025 35.0 47.9 average 73%
Watarrka 34.5 28 Sep 2025 -0.8 24 Jun 2025 52.9 59.9 average 88%
Yulara Airport 23.6 -0.1 36.4 29 Sep 2025 7.2 -0.1 -2.1 23 Jul 2025 42.8 60.5 average 71%

Notes

The Seasonal climate summary, usually published in the first week of the following month, lists the main features of the weather in Northern 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 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.

Creative Commons By Attribution logo Unless otherwise noted, all maps, graphs and diagrams in this page are licensed under the Creative Commons Attribution 4.0 International Licence

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