Weather in Darwin in September 2025
Average weather
Average temperature in Darwin in September
The temperature in September is +91°F on average, with a range between a maximum of +95°F during the day and a minimum of +66°F at night.
The average maximum temperature goes up 13% by the end of the month, compared with the beginning of the month, from +88°F to +91°F.
Is Darwin warm or cold in September?
Darwin is typically hot in September.
Maximum temperatures go up compared to the previous month from +90°F to +91°F. The minimum temperature also goes up from +68°F to +73°F.
Make sure that you pack your summer linen and swimming costumes; it’s probably going to be hot.
September is one of the warmest months in Darwin, here is the comparison with other months:
Climate in Darwin in September
| August | September | October | ||||
|---|---|---|---|---|---|---|
| Avg. temperature | ||||||
| +90°F | +91°F | +93°F | ||||
| Min. temperature | ||||||
| +55°F | +59°F | +68°F | ||||
| Max. temperature | ||||||
| +97°F | +99°F | +102°F | ||||
| Rainfall | ||||||
| 2 mm | 23 mm | 75 mm | ||||
| Wind | ||||||
| 2 m/s | 2 m/s | 2 m/s | ||||
| Humidity | ||||||
| 60% | 65% | 68% | ||||
| Air pressure | ||||||
| 1012 HPa | 1011 HPa | 1009 HPa | ||||
| Sunny days | ||||||
| 21 | 14 | 7 | ||||
| Cloudy days | ||||||
| 7 | 6 | 5 | ||||
| Rainy days | ||||||
| 3 | 9 | 16 | ||||
| Snowy days | ||||||
| 0 | 0 | 0 | ||||
September typically has worse weather conditions compared to August. It’s getting warmer as September arrives. The average maximum temperature goes up from +90°F to +91°F during the day. Prepare for more rain. Average rainfall goes from 2 mm to 23 mm. Humidity rises from 60% to 65%. The average wind speed doesn’t change much during September, staying around 2 m/s. The days becoming less sunny, going from 21 sunny days in August to 14 in September.
Next month (October) brings a further decline in the weather.
Wind
The average wind speed is 3 m/s getting up to 5 m/s which is a light breeze; barely moving the tree leaves.
The average wind speed in Darwin is gradually increasing during September, going from 2 m/s to 3 m/s over the course of the month.
Rain
How was the weather last September in Darwin?
Climate Change Over the Years
The climate in Darwin in September has not changed that much over the last 43 years.
The average temperature was the lowest in 2011 (+88°F) and the highest in 2019 (+91°F). The driest year was 2005 with only 1284 mm of rainfall, and the wettest year was 2024 with 3002 mm.
FAQ
Is September a good time to visit Darwin?
Can you sunbathe in Darwin in September?
Is Darwin rainy in September?
Is it sunny in Darwin in September?
Other cities in Australia
Monthly weather in Darwin
Source of the data
For this page, we’ve looked at the typical weather in Darwin, based on historical hourly weather data from January 1, 1979, to December 31, 2023.
For past dates, we show actual recorded data at the location at that time. Forecasts are based on recorded weather during that day of the year, averaged over the total years for which we have records (unless stated otherwise). The daily temperature is the highest recorded temperature in the shadow during that day.
