Darwin in September
So, what's Darwin actually like in September? In a word: balmy. It's spring, and the days are averaging 31.9 degrees.
The average daily maximum is 31.9 degrees with overnight lows of 24.8 degrees. The warmth sticks around even after dark.
September's temperature is very close to the annual average for Darwin.
Rainfall in September averages 36mm over about 8 days. That means roughly a 27% chance of rain on any given day, decent odds for a dry day.
Solar exposure averages 22.7 MJ/m2 per day in September, with UV levels in the extreme range. Sunscreen, hat, and sunnies are all essential. You can burn in under 10 minutes.
At 5.3/10 on the Comfort Score, September is middle of the road.
Packing tip: bring light, breathable clothing, and serious sun protection.
The sea breeze usually kicks in by early afternoon in September, which is genuinely welcome. It can knock 3 to 5 degrees off the feels-like temperature.
Check the data table below for the full picture, or compare Darwin in September with another destination.
September at a Glance
Temperature Range
Daily temperature range in September. The bar shows the typical spread between overnight lows and afternoon highs.
What to Pack
- Light, breathable clothing and a wide-brimmed hat
- A light rain jacket just in case
- High SPF sunscreen (50+), sunglasses, and UV-protective clothing
Coming From Overseas?
How September in Darwin stacks up against major cities around the world.
About 12 degrees warmer and considerably drier.
About 6 degrees warmer and considerably drier.
About 5 degrees warmer and considerably drier.
How September Compares
Darwin's monthly climate at a glance. September is highlighted.
| Month | Max | Min | Rain | Comfort |
|---|---|---|---|---|
| Jan | 29.9 | 26.3 | 750mm | 3.2 |
| Feb | 30.4 | 26.5 | 275mm | 3.4 |
| Mar | 30.0 | 26.3 | 356mm | 3.4 |
| Apr | 32.3 | 25.4 | 38mm | 4.8 |
| May | 32.5 | 25.0 | 4mm | 5.2 |
| Jun | 30.0 | 21.4 | 0mm | 6.9 |
| Jul | 29.6 | 21.4 | 4mm | 7.1 |
| Aug | 30.8 | 22.7 | 3mm | 6.6 |
| Sep | 31.9 | 24.8 | 36mm | 5.3 |
| Oct | 32.2 | 26.2 | 95mm | 4.4 |
| Nov | 31.2 | 25.9 | 147mm | 4.0 |
| Dec | 31.5 | 26.5 | 253mm | 2.9 |