Melbourne weather in September
Temperature, sea and sunshine in September: long-term averages from 30 years of weather data, not a forecast.
Holiday weather in September
Good
Best time to visit: November – April
What is the weather like in Melbourne in September?
In September, Melbourne is mild: daytime highs average 17 °C, and nights cool down to about 8 °C. The sea averages 12.3 °C – swimming is only for the hardy. Expect around 6 hours of sunshine a day. Rain is frequent, with about 11 rainy days and 57 mm in total. All in all, September is a good month for a holiday in Melbourne.
September compared
How the weather changes from August to October. Tap a month to open it.
| AugustAug | SeptemberSep | OctoberOct | |
|---|---|---|---|
| Score | 52 | 66 | 78 |
| Day | 14° | 17° | 19° |
| Night | 7° | 8° | 10° |
| Sea | 11° | 12° | 15° |
| Sun | 5 h | 6 h | 7 h |
| Rain days | 11 | 11 | 11 |
More details for September
- Daylight
- 11 h 48 min06:22 – 18:09
- UV index
- 6 · highclear sky, noon (estimate)All months
- Muggy days
- 0 daysdew point 18 °C or more
- Wind
- 22 km/haverage daily peak
- Cloud cover
- 59 %on average
- Hot days
- 0 days30 °C or more
- Time zone
- UTC+10Australia/Melbourne
How the score comes together
- Temperatureweight 50 %85 %
- Sunshineweight 20 %47 %
- Few rainy daysweight 30 %49 %
Each factor is rated from 0 to 100 % and weighted for the travel style “City break”.
What to pack in September
- Sunscreen
- A jumper for the evenings
- Rain jacket or umbrella
Melbourne in September: quick answers
Is Melbourne hot in September?
No. In September, Melbourne is mild: daytime highs average 17 °C and nights drop to about 8 °C.
Can you swim in Melbourne in September?
Only if you don't mind cold water: in September the sea averages just 12.3 °C. Comfortable swimming is possible from January to March.
Does it rain much in Melbourne in September?
Rain is frequent, with about 11 rainy days and 57 mm in total.
Melbourne month by month
The whole year in MelbourneAll destinations: AustraliaWhere to go in SeptemberSea temperature in September
Climate averages 1996–2025, not a forecast. Data: Copernicus ERA5 / ERA5-Land via Open-Meteo.com (CC BY 4.0), NOAA OISST, WMO 1991–2020 (NOAA NCEI), GeoNames (CC BY 4.0)