Click on a day for an hourly weather forecast
The temperatures in Nelson Bay in September are usually low and can range between 13°C and 20°C.
You can expect about 3 to 8 days of rain in Nelson 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 Nelson Bay in September 2025.
If you’re planning to visit Nelson Bay in the near future, we highly recommend that you review the 14 day weather forecast for Nelson Bay before you arrive.
| Month | Temperatures | Rainy Days | Dry Days | Snowy Days | Rainfall | Weather | More details |
|---|---|---|---|---|---|---|---|
| January | 27° / 20° | 5 | 27 | 0 | 117 mm | Perfect | Nelson Bay in January |
| February | 26° / 20° | 5 | 24 | 0 | 141 mm | Perfect | Nelson Bay in February |
| March | 25° / 19° | 6 | 25 | 0 | 163 mm | Perfect | Nelson Bay in March |
| April | 22° / 17° | 4 | 26 | 0 | 130 mm | Good | Nelson Bay in April |
| May | 19° / 14° | 4 | 27 | 0 | 93 mm | Good | Nelson Bay in May |
| June | 17° / 12° | 6 | 24 | 0 | 149 mm | Good | Nelson Bay in June |
| July | 16° / 11° | 4 | 27 | 0 | 73 mm | Good | Nelson Bay in July |
| August | 18° / 11° | 3 | 28 | 0 | 79 mm | Good | Nelson Bay in August |
| September | 20° / 13° | 3 | 27 | 0 | 81 mm | Good | Nelson Bay in September |
| October | 22° / 15° | 5 | 26 | 0 | 98 mm | Good | Nelson Bay in October |
| November | 24° / 17° | 6 | 24 | 0 | 139 mm | Perfect | Nelson Bay in November |
| December | 25° / 18° | 5 | 26 | 0 | 107 mm | Perfect | Nelson Bay in December |