Geelong 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 Geelong in September?
In September, Geelong is cool: daytime highs average 15 °C, and nights cool down to about 9 °C. The sea averages 13.2 °C – swimming is only for the hardy. Expect around 6 hours of sunshine a day. Rain is frequent, with about 10 rainy days and 47 mm in total. All in all, September is a good month for a holiday in Geelong.
September compared
How the weather changes from August to October. Tap a month to open it.
| AugustAug | SeptemberSep | OctoberOct | |
|---|---|---|---|
| Score | 52 | 62 | 76 |
| Day | 14° | 15° | 17° |
| Night | 8° | 9° | 11° |
| Sea | 13° | 13° | 14° |
| Sun | 5 h | 6 h | 7 h |
| Rain days | 10 | 10 | 9 |
More details for September
- Daylight
- 11 h 47 min06:24 – 18:12
- UV index
- 5 · moderateclear sky, noon (estimate)All months
- Muggy days
- 0 daysdew point 18 °C or moreAll months
- Wind
- 23 km/haverage daily peakAll months
- Cloud cover
- 60 %on averageAll months
- Hot days
- 0 days30 °C or moreAll months
- Time zone
- UTC+10Australia/Melbourne
How the score comes together
- Temperatureweight 50 %74 %
- Sunshineweight 20 %42 %
- Few rainy daysweight 30 %56 %
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
Geelong in September: quick answers
Is Geelong hot in September?
No. In September, Geelong is cool: daytime highs average 15 °C and nights drop to about 9 °C.
Can you swim in Geelong in September?
Only if you don't mind cold water: in September the sea averages just 13.2 °C. Comfortable swimming temperatures are not reached at any time of year.
Does it rain much in Geelong in September?
Rain is frequent, with about 10 rainy days and 47 mm in total.
Geelong month by month
The whole year in GeelongAll 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). Sources & licences