Australia
Darwin in September: weather, sea & travel advice
This month's data profile
Sea conditions lead
Darwin in September is climatically well suited to beach holidays, family holidays and city breaks. The average daily high is around 33 °C, and the sea is about 28 °C. With about 4 rainy days it is dry.
Historical monthly averages, not a weather forecast. Individual days and years can differ substantially.
Rank among 12 monthly averages
74/100 · #5
Warmth
#2
Dryness
#5
Sun
#2
Sea warmth
#9
Published best categories: none
Darwin · SeptemberPhoto: Dietmar Rabich · CC BY-SA 4.0Climate facts
- Average high
- 33 °C
- Average low
- 26 °C
- Sea
- 28 °C
- Rainy days (est.)
- 4 rainy days (est.)
- Sun (est.)
- 8 h/day
- Humidity
- 60 %
Climate evidence with direct month comparison
The highlighted row is the selected month. Precipitation total and rainy days are separate monthly averages.
| Month | Avg high °C | Avg low °C | Rainy days (est.) | Precipitation mm | Sun h/day (est.) | Humidity % | Wind m/s | Sea °C | Score |
|---|---|---|---|---|---|---|---|---|---|
| August | 31 | 23 | 1 | 3 | 7.4 | 55 | 3.4 | 26 | 81 |
| September (selected) | 33 | 26 | 4 | 17 | 8.0 | 60 | 3.1 | 28 | 74 |
| October | 33 | 28 | 14 | 67 | 8.3 | 64 | 3.0 | 30 | 54 |
How do the previous and next months compare?
Baseline: September (74/100)
Positive and negative values show the change from the selected month.
| Score Δ | Average high Δ | Average low Δ | Rainy days Δ | Rain Δ | Sun Δ | Humidity Δ | Wind Δ | Sea Δ | |
|---|---|---|---|---|---|---|---|---|---|
| August | +7 | -1.5 °C | -2.7 °C | -3.3 | -14.4 mm | -0.6 h | -5.6 % | +0.2 m/s | -1.7 °C |
| October | -20 | +0.5 °C | +1.7 °C | +9.9 | +49.6 mm | +0.3 h | +3.1 % | -0.1 m/s | +1.7 °C |
All twelve months in context
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Frequently asked questions
How warm is Darwin in September?
The average daily high is around 33 °C, with an average daily low of about 26 °C.
Can you swim in Darwin in September?
The sea is about 28 °C (very warm).
Does it rain a lot in Darwin in September?
The curated estimate is about 4 rainy days per month, not a directly measured long-term average. Total precipitation averages around 17 mm for the month. A rainy day does not mean all-day rain.
When is the best time to visit Darwin?
By the climate score, May, June, July and August are the strongest months for Darwin. For a beach trip: May, June, July and August. September is not among them.