South Melbourne Weather in September
What's the weather like in South Melbourne (Victoria) in September 2025?
The climate in South Melbourne during September can be summarized as mild and reasonably dry.
September is in the spring in South Melbourne and is typically the 4th coldest month of the year. Daytime maximum temperatures average around a cool 16°C (61°F), whilst at night 7°C (45°F) is normal.
| Daytime temperature | 16.3°C 61.3°F |
|---|---|
| Nightly temperature | 7.1°C 44.8°F |
| Average temperature | 11.7°C 53.1°F |
| Daily sunshine | 6.1 hrs |
| Avg rainfall | 54 mm 2.1 ins |
| Rainy days | 10 days |
| Sea temperature | 13.4°C 56.1°F |
| Humidity | 63% |
| Windspeed | 16.9kph 11 mph |
On average September is the 6th wettest month of the year in South Melbourne with around 54mm 2.1 inches of rain making it a reasonably dry time to visit. This rainfall is typically spread over 10 days, although this may vary considerably.
On the flip side this corresponds to an average of 6.1 hours of sunshine per day.
September temperatures in South Melbourne
September rainfall
September hourly sunshine
The data used in these monthly averages covers a period of over 100 years right up until last year. As such they are a valid prediction of what to expect for the weather in South Melbourne in September 2025.
Other monthly averages
Best places to visit in September
South Melbourne weather stats
| Hottest month: | February | 25.7°C 78.3°F |
|---|---|---|
| Driest month: | June | 40mm 1.6ins |
| Sunniest month: | February | 8.6hrs |
| Coldest month: | July | 12.7°C 54.9°F |
| Wettest month: | May | 64mm 2.5ins |
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