Click on a day for an hourly weather forecast
The temperatures in Noumea in September are comfortable with low of 18°C and and high up to 22°C.
You can expect a few rainy days in Noumea during September, but usually the weather is comfortable in September.
Our weather forecast can give you a great sense of what weather to expect in Noumea in September 2025.
If you’re planning to visit Noumea in the near future, we highly recommend that you review the 14 day weather forecast for Noumea before you arrive.
| Month | Temperatures | Rainy Days | Dry Days | Snowy Days | Rainfall | Weather | More details |
|---|---|---|---|---|---|---|---|
| January | 26° / 23° | 8 | 23 | 0 | 232 mm | Good | Noumea in January |
| February | 27° / 23° | 9 | 20 | 0 | 206 mm | Good | Noumea in February |
| March | 26° / 23° | 11 | 21 | 0 | 290 mm | Good | Noumea in March |
| April | 25° / 22° | 7 | 23 | 0 | 201 mm | Good | Noumea in April |
| May | 23° / 20° | 5 | 26 | 0 | 151 mm | Perfect | Noumea in May |
| June | 22° / 19° | 4 | 26 | 0 | 161 mm | Good | Noumea in June |
| July | 21° / 18° | 4 | 27 | 0 | 132 mm | Good | Noumea in July |
| August | 21° / 17° | 4 | 27 | 0 | 108 mm | Good | Noumea in August |
| September | 22° / 18° | 2 | 28 | 0 | 70 mm | Good | Noumea in September |
| October | 23° / 19° | 4 | 27 | 0 | 96 mm | Perfect | Noumea in October |
| November | 24° / 20° | 4 | 26 | 0 | 131 mm | Perfect | Noumea in November |
| December | 26° / 22° | 6 | 25 | 0 | 148 mm | Perfect | Noumea in December |