Climate averages 1991–2020
Melbourne weather
in September.
A mild, moderately wet month: the joint 8th warmest and the joint 9th driest of the year.
Long-term climate patterns, not a forecast for a particular trip.
September is a mild month in Melbourne: daytime highs average 16.1°C and nights cool to about 7.9°C. By daytime temperature it is the joint 8th warmest of the 12 months.
Expect about 60 mm of rain on roughly 12 days, which makes September a moderately wet month (the joint 9th driest of the 12 months). Daylight, from sunrise to sunset, lasts about 11 h 49 min on an average September day.
The nearest other city in this atlas is Geelong (65 km away). In September its highs average 15.7°C, about as warm as Melbourne, with 49 mm of rain.
Among the 32 cities listed in Australia, Melbourne ranks 23rd of 32 for the warmest September highs and 27th of 32 for the driest September (rainfall, lowest first). The mean September high of those 32 cities is 20.0°C; Melbourne is 3.9°C cooler than that mean.
From September to October, average highs rise by 2.7°C to 18.8°C, and monthly rainfall stays at 60 mm.
The annual picture
September in context
Monthly rainfall
Average total · mmAverages from hourly ERA5 reanalysis data. Actual weather varies from year to year. How these numbers are calculated
Every month, side by side
Melbourne climate table
| Month | Average highHigh / low | Average low | Rainfall mm/month | Rain days ≥1 mm/day | Daylight hours/dayDaylight h/day |
|---|---|---|---|---|---|
| January | 25.5°C14.7°C | 14.7°C | 49 | 5.9 | 14.514 h |
| February | 25.4°C14.9°C | 14.9°C | 44 | 5.7 | 13.514 h |
| March | 23.2°C13.5°C | 13.5°C | 35 | 5.5 | 12.412 h |
| April | 19.6°C10.9°C | 10.9°C | 46 | 7.0 | 11.111 h |
| May | 16.1°C9.1°C | 9.1°C | 43 | 8.7 | 10.110 h |
| June | 13.5°C7.2°C | 7.2°C | 49 | 10.2 | 9.610 h |
| July | 12.9°C6.6°C | 6.6°C | 44 | 11.0 | 9.810 h |
| August | 13.9°C6.8°C | 6.8°C | 51 | 11.3 | 10.711 h |
| September, selected | 16.1°C7.9°C | 7.9°C | 60 | 11.7 | 11.812 h |
| October | 18.8°C9.4°C | 9.4°C | 60 | 10.3 | 13.013 h |
| November | 21.2°C11.3°C | 11.3°C | 61 | 9.3 | 14.114 h |
| December | 23.3°C12.9°C | 12.9°C | 60 | 7.7 | 14.715 h |
Rainfall is the average of the 30 separate monthly totals. A rain day is a local calendar day with at least 1 mm of precipitation. Daylight is the calculated sunrise-to-sunset length, not measured sunshine.
Compare places
September in nearby cities
- Geelong in SeptemberAustralia · 65 kmHigh 15.7°C · Low 8.2°C · 49 mm rain
- Ballarat in SeptemberAustralia · 102 kmHigh 13.4°C · Low 5.4°C · 69 mm rain
- Bendigo in SeptemberAustralia · 132 kmHigh 15.5°C · Low 6.6°C · 52 mm rain
- Launceston in SeptemberAustralia · 444 kmHigh 14.0°C · Low 4.8°C · 76 mm rain
- Tuggeranong in SeptemberAustralia · 453 kmHigh 14.9°C · Low 4.0°C · 67 mm rain
- Canberra in SeptemberAustralia · 466 kmHigh 14.9°C · Low 4.0°C · 51 mm rain
- Hobart in SeptemberAustralia · 598 kmHigh 14.1°C · Low 6.1°C · 53 mm rain
- Adelaide Hills in SeptemberAustralia · 646 kmHigh 15.1°C · Low 7.2°C · 55 mm rain
Read the numbers correctly
Climate, not a promise.
These patterns help compare months. They cannot tell you the weather on a specific day of your trip.
Sources, method and limitsHow these numbers are made (what the highs, lows and rain days mean, the sources and the model cell used for Melbourne) is explained once on the Melbourne year overview and on the Sources, method and limits page.