Darwin weather in September
September in Darwin: sweltering, dry, with clean air — a great time to visit.
#5 of 12 months in Darwin · #405 of 604 destinations to visit in September · comfort 72/100 (tier B)
Updated June 2026 · climate normals from ERA5 reanalysis
Darwin climate normals — September
| Daytime high | 34°C / 92°F | 🔥 sweltering |
|---|---|---|
| Nighttime low | 23°C / 74°F | |
| Feels like (high) | 36°C / 97°F | |
| Rainfall | 26 mm / 1 in | ☀️ dry |
| Rainy days | 6 days | |
| Humidity | 63% | 💧 humid |
| Dew point | 20°C / 67°F | |
| Sunshine | 11.2 h/day | |
| Daylight | 12 h | |
| Wind | 15 km/h / 10 mph | |
| Air quality (US AQI) | 33 | 🍃 good |
Monthly averages from ERA5 reanalysis. AQI is the mean US Air Quality Index for the month.
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Darwin in September — FAQ
- Is September a good time to visit Darwin?
- September in Darwin: sweltering, dry, with clean air — a great time to visit. It ranks #5 of 12 months for Darwin on SeasonMap's comfort score (72/100).
- What is the weather like in Darwin in September?
- In September, Darwin averages a daily high of 33.5°C and a low of 23.2°C, with about 26.2 mm of rain over roughly 5.6 rainy days.
- What is the air quality in Darwin in September?
- Darwin has a mean US Air Quality Index of about 33 in September.