Wednesday 1 October 2025 - Monthly Climate Summary for Northern Territory - Product code IDCKGC12R0
Northern Territory in September 2025
Rainfall
- The Northern Territory's area-averaged rainfall total in September was 8.23 mm, 17.8% above the 1961–1990 average.
- Rainfall totals in September were above to very much above average for large parts of the Northern Territory.
- Several sites had their highest September daily rainfall on record or their highest total September rainfall on record
Temperature
- Mean maximum temperatures in September were above to very much above average for the Top End, and areas in the eastern and southern parts of the Territory.
- Northern Territory's area-averaged mean maximum temperature was 32.5 °C, 1.12 °C above the 1961–1990 average.
- Victoria River Downs had its highest daily maximum temperature on record for September on the 20th, at 41.7 °C and McArthur River Mine Airport had its equal highest daily maximum temperature on record for September on the 29th, at 40.9 °C.
- Milingimbi Airport had its equal highest September mean maximum temperature on record at 32.8 °C.
- Mean minimum temperatures in September were above average for large parts of the Northern Territory, but below average for areas of the Tanami and Simpson districts.
- Northern Territory's area-averaged mean minimum temperature was 16.40 °C, 0.50 °C above the 1961–1990 average.
- On the 4th, Elliot had its lowest daily minimum temperature on record for September at 6.7 °C.
- Northern Territory's area-averaged mean temperature was 24.45 °C, 0.81 °C above the 1961–1990 average.
Events
- During September, several low pressure troughs triggered rainfall across the Northern Territory.
- For more details, visit the September national climate summary.
Darwin Airport
- Total rainfall for Darwin Airport was 9.8 mm, which is 58% of the long-term average of 16.9 mm.
- The mean daily maximum temperature for Darwin Airport was 33.9 °C, which is 1.2 °C above the long-term average of 32.7 °C.
- The warmest day was 36.0 °C on the 7th, and the coolest day was on the 4th when the temperature reached 31.1 °C.
- The mean daily minimum temperature for Darwin Airport was 23.4 °C, which is 0.4 °C above the long-term average of 23.0 °C.
- The coldest morning was 18.3 °C on the 4th, and the warmest morning was on the 21st when the minimum temperature was 26.3 °C.
Alice Springs Airport
- Total rainfall for Alice Springs Airport was 25.6 mm, which is 298% of the long-term average of 8.6 mm.
- The mean daily maximum temperature for Alice Springs Airport was 27.6 °C, which is 0.1 °C above the long-term average of 27.5 °C.
- The warmest day was 36.4 °C on the 29th, and the coolest day was on the 1st when the temperature reached 19.4 °C.
- The mean daily minimum temperature for Alice Springs Airport was 8.9 °C, which is 1.4 °C below the long-term average of 10.3 °C.
- The coldest morning was -0.6 °C on the 1st, and the warmest morning was on the 9th when the minimum temperature was 19.3 °C.
Extremes Maps Records Summaries Important notes the top
| Extremes in September 2025 | |
|---|---|
| Hottest day |
41.7 °C at Victoria River Downs on the 20th |
| Warmest days on average |
37.5 °C at Bradshaw - Angallari Valley (Defence) |
| Coolest days on average |
27.6 °C at Alice Springs Airport |
| Coldest day |
19.4 °C at Alice Springs Airport on the 1st |
| Coldest night |
-0.6 °C at Alice Springs Airport on the 1st |
| Coolest nights on average |
8.9 °C at Alice Springs Airport |
| Warmest nights on average |
25.4 °C at McCluer Island |
| Warmest night |
27.1 °C at Bradshaw - Angallari Valley (Defence) on the 30th |
| Warmest on average overall |
29.7 °C at Bradshaw - Angallari Valley (Defence) |
| Coolest on average overall |
18.2 °C at Alice Springs Airport |
| Wettest overall |
112.2 mm at Geriatric Park |
| Wettest day |
110.0 mm at Geriatric Park on the 12th |
| Strongest wind gust |
80.0 km/h at Alice Springs Airport on the 8th |
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 daily rainfall | ||||||
|---|---|---|---|---|---|---|
| New record (mm) |
Old record |
Years of record |
Average for September |
|||
| Douglas River Research Farm | 61.0 | on the 22nd | 37.2 | on 29 Sep 1986 | 56 | 5.6 |
| Geriatric Park | 110.0 | on the 12th | 45.6 | on 06 Sep 2010 | 28 | 23.2 |
| Bradshaw | 21.4 | on the 22nd | 14.0 | on 17 Sep 2024 | 26 | 2.9 |
| Record highest September total rainfall | |||||
|---|---|---|---|---|---|
| New record (mm) |
Old record |
Years of record |
Average for September |
||
| Douglas River Research Farm | 89.6 | 64.8 | in 2016 | 55 | 5.6 |
| Geriatric Park | 112.2 | 102.8 | in 2010 | 27 | 23.2 |
| Bradshaw | 35.0 | 21.8 | in 2024 | 25 | 2.9 |
| Highest September total rainfall for at least 20 years | |||||
|---|---|---|---|---|---|
| Observed (mm) |
Most recent higher |
Average for September |
|||
| Hermannsburg | 33.2 | 97.0 | in 1975 | 8.0 | |
note: there may be gaps in the historical record at some sites, so it is possible more recent higher values have gone unreported
| Record highest September temperature | ||||||
|---|---|---|---|---|---|---|
| New record (°C) |
Old record |
Years of record |
Average for September |
|||
| Victoria River Downs | 41.7 | on the 20th | 41.4 | on 26 Sep 2022 | 60 | 35.8 |
| McArthur River Mine Airport | 40.9 | on the 29th | =40.9 | on 21 Sep 2022 | 47 | 35.6 |
| Record highest September mean maximum temperature | |||||
|---|---|---|---|---|---|
| New record (°C) |
Old record |
Years of record |
Average for September |
||
| Milingimbi Airport | 32.8 | =32.8 | in 2022 | 23 | 32.0 |
| Record lowest September temperature | ||||||
|---|---|---|---|---|---|---|
| New record (°C) |
Old record |
Years of record |
Average for September |
|||
| Elliott | 6.7 | on the 4th | 7.2 | on 20 Sep 2001 | 44 | 17.6 |
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 |
|||
| Darwin-Daly (district 14GA) | ||||||||||||
| Batchelor Airport | 36.0 | -0.1 | 38.7 | 29th | 20.6 | 0.0 | 13.4 | 4th | 33.6 | 10.6 | high | 317% |
| Central Arnhem Plateau | 34.0 | 0.0 | 37.5 | 29th | 19.7 | +0.4 | 12.3 | 3rd | 3.0 | 6.0 | average | 50% |
| Channel Point | 32.0 | +0.7 | 35.2 | 23rd | 21.6 | -0.1 | 15.1 | 4th | 8.9 | 11.3 | average | 79% |
| Charles Point | 31.4 | +0.3 | 35.6 | 23rd | 24.1 | +0.3 | 19.3 | 4th | 1.0 | 29.4 | low | 3% |
| Croker Island Airport | 32.9 | +0.4 | 34.8 | 22nd | 22.6 | -0.5 | 18.1 | 4th | 4.6 | 1.7 | high | 271% |
| Darwin Airport | 33.9 | +1.2 | 36.0 | 7th | 23.4 | +0.4 | 18.3 | 4th | 9.8 | 16.9 | average | 58% |
| Delamere Weapons Range | 35.6 | -0.2 | 40.1 | 20th | 20.8 | 0.0 | 13.8 | 4th | 3.4 | 4.0 | high | 85% |
| Douglas River Research Farm | 36.3 | -0.6 | 39.1 | 20th | 19.0 | +0.2 | 7.9 | 4th | 89.6 | 5.6 | highest | 1600% |
| Dum In Mirrie Airstrip | 33.2 | +1.1 | 37.4 | 23rd | 22.4 | -0.5 | 16.9 | 4th | 13.8 | 18.9 | average | 73% |
| East Point | 33.2 | 36.2 | 23rd | 23.7 | 19.6 | 4th | 23.2 | |||||
| Jabiru Airport | 36.6 | +0.2 | 39.7 | 29th | 22.4 | +0.7 | 16.0 | 3rd | 20.0 | 12.5 | high | 160% |
| Kangaroo Flats (Defence) | 36.5 | 40.0 | 29th | 22.1 | 15.4 | 4th | 4.0 | |||||
| Knuckey Lagoon | 34.9 | 36.6 | 11th | 21.0 | 15.3 | 4th | 29.4 | |||||
| McCluer Island | 29.3 | +0.1 | 31.6 | 22nd | 25.4 | +0.5 | 23.7 | 1st | 0.0 | 2.1 | lowest | 0% |
| Middle Point | 36.3 | -0.3 | 38.5 | 29th | 20.3 | +1.1 | 13.4 | 4th | 47.0 | 16.9 | high | 278% |
| Mount Bundey North (Defence) | 36.2 | 39.0 | 29th | 22.7 | 17.3 | 4th | 12.4 | |||||
| Mount Bundey South (Defence) | 36.5 | 39.3 | 20th | 21.5 | 14.3 | 3rd | 17.0 | |||||
| Murganella Airstrip | 33.4 | +0.4 | 35.5 | 30th | 19.8 | +0.1 | 14.1 | 3rd | 27.0 | 20.6 | high | 131% |
| Noonamah Airstrip | 36.3 | 0.0 | 38.6 | 29th | 21.7 | +0.5 | 14.9 | 4th | 5.4 | 25.1 | average | 22% |
| Oenpelli Airport | 36.5 | -0.5 | 38.9 | 29th | 21.5 | +0.8 | 15.4 | 3rd | 48.0 | 17.2 | high | 279% |
| Pirlangimpi Airport | 34.9 | +1.4 | 36.7 | 24th | 21.9 | +0.5 | 18.1 | 3rd | 9.0 | 28.3 | average | 32% |
| Point Stuart | 33.7 | +0.2 | 35.7 | 23rd | 22.0 | +0.2 | 15.8 | 4th | 33.2 | 9.9 | high | 335% |
| Port Keats Airport | 33.7 | +0.1 | 37.4 | 24th | 21.2 | +0.1 | 12.3 | 5th | 7.6 | 8.3 | average | 92% |
| Tindal RAAF | 35.8 | -0.2 | 39.2 | 29th | 20.7 | +0.7 | 11.7 | 3rd | 1.4 | 8.4 | average | 17% |
| Arnhem (district 14BC) | ||||||||||||
| Gove Airport | 31.3 | 34.1 | 30th | 21.5 | 16.6 | 3rd | 0.6 | |||||
| Groote Eylandt Airport | 32.4 | -0.2 | 36.7 | 30th | 19.1 | +1.1 | 10.9 | 3rd | 0.2 | 7.6 | low | 3% |
| Maningrida Airport | 33.1 | +0.7 | 36.2 | 23rd | 21.3 | +0.7 | 15.3 | 3rd | 0.0 | 7.3 | lowest | 0% |
| Milingimbi Airport | 32.8 | +0.8 | 36.4 | 23rd | 21.5 | 0.0 | 16.8 | 3rd | 0.0 | 7.5 | lowest | 0% |
| Ngayawili | 32.4 | +0.4 | 34.4 | 22nd | 21.7 | +0.9 | 18.9 | 3rd | 0.4 | 5.6 | average | 7% |
| Warruwi Airport | 31.7 | +0.7 | 34.2 | 22nd | 24.2 | +0.5 | 20.4 | 4th | 0.2 | 2.7 | high | 7% |
| Roper-Mcarthur (district 14DE) | ||||||||||||
| Borroloola Airport | 35.6 | +0.4 | 39.8 | 29th | 18.6 | +1.0 | 9.9 | 3rd | 0.0 | 3.4 | lowest | 0% |
| Bulman | 36.3 | -0.1 | 40.1 | 30th | 18.4 | +0.1 | 10.4 | 3rd | 0.4 | 12.4 | high | 3% |
| Centre Island | 30.8 | +0.1 | 33.4 | 30th | 23.0 | +0.7 | 19.3 | 3rd | 0.2 | 2.0 | low | 10% |
| Daly Waters Airstrip | 35.2 | +0.2 | 40.0 | 30th | 16.2 | -0.6 | 4.6 | 3rd | 0.2 | 2.3 | average | 9% |
| McArthur River Mine Airport | 36.2 | +0.6 | 40.9 | 29th | 18.7 | +1.3 | 9.2 | 3rd | 0.0 | 4.4 | lowest | 0% |
| Ngukurr Airport | 36.2 | -0.2 | 41.0 | 30th | 18.6 | -0.5 | 11.7 | 3rd | 0.0 | 5.7 | lowest | 0% |
| Victoria (district 14F) | ||||||||||||
| Bradshaw | 37.1 | -0.4 | 40.6 | 20th | 20.7 | -1.5 | 11.1 | 4th | 35.0 | 2.9 | highest | 1207% |
| Bradshaw - Angallari Valley (Defence) | 37.5 | 40.9 | 20th | 21.9 | 13.3 | 4th | 0.2 | |||||
| Bradshaw - Koolendong Valley (Defence) | 36.5 | 39.6 | 30th | 18.0 | 7.2 | 4th | 56.2 | |||||
| Lajamanu Airport | 34.5 | -0.3 | 40.2 | 30th | 17.2 | +0.4 | 7.9 | 4th | 0.4 | 5.7 | average | 7% |
| Victoria River Downs | 36.7 | +0.9 | 41.7 | 20th | 18.5 | +0.2 | 7.9 | 4th | 0.0 | 4.7 | lowest | 0% |
| Barkly (district 15A) | ||||||||||||
| Elliott | 34.8 | -0.5 | 40.8 | 30th | 16.9 | -0.7 | 6.7 | 4th | 0.8 | 5.4 | average | 15% |
| Tennant Creek Airport | 31.7 | -0.1 | 38.4 | 30th | 18.9 | +0.4 | 10.6 | 2nd | 0.8 | 8.0 | average | 10% |
| Alice Springs (district 15B) | ||||||||||||
| Alice Springs Airport | 27.6 | +0.1 | 36.4 | 29th | 8.9 | -1.4 | -0.6 | 1st | 25.6 | 8.6 | high | 298% |
| Curtin Springs | 28.0 | 0.0 | 36.5 | 29th | 9.9 | -0.3 | 1.5 | 1st | 0.0 | 10.4 | lowest | 0% |
| Jervois | 29.3 | -0.5 | 37.7 | 29th | 11.9 | +0.4 | 2.7 | 1st | 35.4 | 10.1 | high | 350% |
| Rabbit Flat | 33.9 | -0.6 | 40.8 | 30th | 11.3 | -2.9 | 2.2 | 3rd | 3.2 | 6.8 | average | 47% |
| Walungurru Airport | 31.0 | -0.8 | 37.6 | 29th | 15.7 | -1.2 | 10.1 | 1st | 0.0 | 8.5 | lowest | 0% |
| Watarrka | 29.0 | -0.5 | 34.5 | 28th | 10.0 | -3.2 | 3.0 | 14th | 8.2 | 10.0 | average | 82% |
| Yulara Airport | 28.6 | -0.2 | 36.4 | 29th | 10.0 | -0.9 | 2.3 | 2nd | 0.8 | 9.6 | average | 8% |
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 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.
Unless otherwise noted, all maps, graphs and diagrams in this page are licensed under the Creative Commons Attribution 4.0 International Licence
