Click on a day for an hourly weather forecast
The temperatures in Geelong in September are quite cold with temperatures between 8°C and 16°C, warm clothes are a must.
You can expect about 3 to 8 days of rain in Geelong during the month of September. It’s a good idea to bring along your umbrella so that you don’t get caught in poor weather.
Our weather forecast can give you a great sense of what weather to expect in Geelong in September 2025.
If you’re planning to visit Geelong in the near future, we highly recommend that you review the 14 day weather forecast for Geelong before you arrive.
| Month | Temperatures | Rainy Days | Dry Days | Snowy Days | Rainfall | Weather | More details |
|---|---|---|---|---|---|---|---|
| January | 25° / 15° | 3 | 28 | 0 | 65 mm | Perfect | Geelong in January |
| February | 25° / 15° | 3 | 26 | 0 | 68 mm | Perfect | Geelong in February |
| March | 23° / 14° | 3 | 28 | 0 | 56 mm | Perfect | Geelong in March |
| April | 19° / 12° | 3 | 27 | 0 | 54 mm | Good | Geelong in April |
| May | 16° / 10° | 3 | 28 | 0 | 61 mm | Good | Geelong in May |
| June | 14° / 8° | 3 | 27 | 0 | 60 mm | Good | Geelong in June |
| July | 13° / 7° | 4 | 27 | 0 | 56 mm | Ok | Geelong in July |
| August | 14° / 7° | 4 | 27 | 0 | 64 mm | Good | Geelong in August |
| September | 16° / 8° | 4 | 26 | 0 | 73 mm | Good | Geelong in September |
| October | 19° / 9° | 5 | 26 | 0 | 81 mm | Good | Geelong in October |
| November | 21° / 11° | 4 | 26 | 0 | 76 mm | Good | Geelong in November |
| December | 23° / 12° | 4 | 27 | 0 | 64 mm | Perfect | Geelong in December |