Click on a day for an hourly weather forecast
The temperatures in Jervis Bay 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 Jervis Bay 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 Jervis Bay in September 2025.
If you’re planning to visit Jervis Bay in the near future, we highly recommend that you review the 14 day weather forecast for Jervis Bay before you arrive.
| Month | Temperatures | Rainy Days | Dry Days | Snowy Days | Rainfall | Weather | More details |
|---|---|---|---|---|---|---|---|
| January | 27° / 17° | 4 | 27 | 0 | 84 mm | Perfect | Jervis Bay in January |
| February | 26° / 17° | 4 | 24 | 0 | 132 mm | Perfect | Jervis Bay in February |
| March | 24° / 16° | 5 | 27 | 0 | 129 mm | Perfect | Jervis Bay in March |
| April | 21° / 13° | 3 | 27 | 0 | 59 mm | Good | Jervis Bay in April |
| May | 18° / 10° | 2 | 29 | 0 | 51 mm | Good | Jervis Bay in May |
| June | 15° / 9° | 3 | 27 | 0 | 104 mm | Good | Jervis Bay in June |
| July | 15° / 8° | 2 | 29 | 0 | 55 mm | Good | Jervis Bay in July |
| August | 16° / 8° | 3 | 28 | 0 | 78 mm | Good | Jervis Bay in August |
| September | 19° / 10° | 3 | 27 | 0 | 56 mm | Good | Jervis Bay in September |
| October | 22° / 11° | 4 | 27 | 0 | 89 mm | Good | Jervis Bay in October |
| November | 24° / 13° | 5 | 25 | 0 | 97 mm | Perfect | Jervis Bay in November |
| December | 26° / 15° | 4 | 27 | 0 | 70 mm | Perfect | Jervis Bay in December |