Click on a day for an hourly weather forecast
The temperatures in Gerringong in September are usually low and can range between 10°C and 19°C.
You can expect about 3 to 8 days of rain in Gerringong 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 Gerringong in September 2025.
If you’re planning to visit Gerringong in the near future, we highly recommend that you review the 14 day weather forecast for Gerringong before you arrive.
| Month | Temperatures | Rainy Days | Dry Days | Snowy Days | Rainfall | Weather | More details |
|---|---|---|---|---|---|---|---|
| January | 27° / 17° | 8 | 23 | 0 | 95 mm | Good | Gerringong in January |
| February | 25° / 17° | 9 | 20 | 0 | 132 mm | Good | Gerringong in February |
| March | 24° / 16° | 9 | 22 | 0 | 145 mm | Good | Gerringong in March |
| April | 21° / 13° | 7 | 23 | 0 | 80 mm | Ok | Gerringong in April |
| May | 18° / 10° | 5 | 26 | 0 | 55 mm | Good | Gerringong in May |
| June | 15° / 8° | 6 | 24 | 0 | 79 mm | Good | Gerringong in June |
| July | 15° / 8° | 4 | 27 | 0 | 58 mm | Good | Gerringong in July |
| August | 16° / 8° | 5 | 26 | 0 | 71 mm | Good | Gerringong in August |
| September | 19° / 10° | 5 | 25 | 0 | 56 mm | Good | Gerringong in September |
| October | 21° / 12° | 7 | 24 | 0 | 84 mm | Ok | Gerringong in October |
| November | 23° / 14° | 9 | 21 | 0 | 94 mm | Good | Gerringong in November |
| December | 25° / 15° | 8 | 23 | 0 | 77 mm | Good | Gerringong in December |