Australia
Melbourne in September: weather, sea & travel advice
This month's data profile
Rain shapes the decision
Melbourne in September is climatically mixed. The average daily high is around 16 °C, and the sea is about 12 °C. With about 13 rainy days it is wet.
Historical monthly averages, not a weather forecast. Individual days and years can differ substantially.
Rank among 12 monthly averages
42/100 · #9
Warmth
#9
Dryness
#9
Sun
#7
Sea warmth
#10
Published best categories: none
Melbourne · SeptemberPhoto: Diliff · CC BY-SA 3.0Climate facts
- Average high
- 16 °C
- Average low
- 8 °C
- Sea
- 12 °C
- Rainy days (est.)
- 13 rainy days (est.)
- Sun (est.)
- 5 h/day
- Humidity
- 78 %
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 | 14 | 7 | 14 | 68 | 3.4 | 82 | 3.6 | 11 | 33 |
| September (selected) | 16 | 8 | 13 | 69 | 4.8 | 78 | 3.5 | 12 | 42 |
| October | 18 | 9 | 12 | 74 | 6.6 | 74 | 3.3 | 14 | 55 |
How do the previous and next months compare?
Baseline: September (42/100)
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 | -9 | -2 °C | -1.1 °C | +1.1 | -0.5 mm | -1.4 h | +3.4 % | +0.1 m/s | -1 °C |
| October | +13 | +2.7 °C | +1.5 °C | -1 | +5.2 mm | +1.8 h | -4.3 % | -0.2 m/s | +2.2 °C |
All twelve months in context
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Useful next decisions
Frequently asked questions
How warm is Melbourne in September?
The average daily high is around 16 °C, with an average daily low of about 8 °C.
Can you swim in Melbourne in September?
The sea is about 12 °C (cold).
Does it rain a lot in Melbourne in September?
The curated estimate is about 13 rainy days per month, not a directly measured long-term average. Total precipitation averages around 69 mm for the month. A rainy day does not mean all-day rain.
When is the best time to visit Melbourne?
By the climate score, January, February, March and December are the strongest months for Melbourne. For a beach trip: January, February, March and December. September is not among them.