Darwin Weather in September
What's the weather like in Darwin (Northern Territory) in September 2025?
The climate in Darwin during September can be summarized as hot and dry.
September is in the spring in Darwin and is typically the 5th coldest month of the year. Daytime maximum temperatures average around a warm 33°C (91°F), whilst at night 23°C (74°F) is normal.
| Daytime temperature | 32.7°C 90.8°F |
|---|---|
| Nightly temperature | 23.2°C 73.7°F |
| Average temperature | 27.9°C 82.2°F |
| Daily sunshine | 10.4 hrs |
| Avg rainfall | 15 mm 0.6 ins |
| Rainy days | 3 days |
| Sea temperature | 27.5°C 81.5°F |
| Humidity | 57% |
| Windspeed | 12.6kph 8 mph |
On average September is the 4th driest month of the year in Darwin with around 15mm 0.6 inches of rain making it a dry time to visit. This rainfall is typically spread over 3 days, although this may vary considerably.
On the flip side this corresponds to an average of 10.4 hours of sunshine per day.
September temperatures in Darwin
September rainfall
September hourly sunshine
The data used in these monthly averages covers a period of over 100 years right up until last year. As such they are a valid prediction of what to expect for the weather in Darwin in September 2025.
Other monthly averages
Best places to visit in September
Darwin weather stats
| Hottest month: | November | 33.2°C 91.8°F |
|---|---|---|
| Driest month: | July | 1mm 0ins |
| Sunniest month: | July | 10.6hrs |
| Coldest month: | July | 30.3°C 86.5°F |
| Wettest month: | January | 428mm 16.9ins |
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