Click on a day for an hourly weather forecast
The weather in Samoa in September is very hot. The average temperatures are between 26°C and 27°C, drinking water regularly is advisable.
You can expect about 3 to 8 days of rain in Samoa 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 Samoa in September 2025.
If you’re planning to visit Samoa in the near future, we highly recommend that you review the 14 day weather forecast for Samoa before you arrive.
| Month | Temperatures | Rainy Days | Dry Days | Snowy Days | Rainfall | Weather | More details |
|---|---|---|---|---|---|---|---|
| January | 29° / 27° | 11 | 20 | 0 | 348 mm | Ok | Samoa in January |
| February | 29° / 27° | 9 | 19 | 0 | 338 mm | Ok | Samoa in February |
| March | 29° / 28° | 10 | 22 | 0 | 186 mm | Ok | Samoa in March |
| April | 29° / 27° | 10 | 20 | 0 | 220 mm | Ok | Samoa in April |
| May | 28° / 27° | 9 | 22 | 0 | 234 mm | Good | Samoa in May |
| June | 28° / 27° | 9 | 21 | 0 | 241 mm | Good | Samoa in June |
| July | 27° / 26° | 8 | 23 | 0 | 238 mm | Good | Samoa in July |
| August | 27° / 26° | 7 | 24 | 0 | 179 mm | Good | Samoa in August |
| September | 27° / 26° | 5 | 25 | 0 | 139 mm | Perfect | Samoa in September |
| October | 28° / 27° | 9 | 22 | 0 | 234 mm | Good | Samoa in October |
| November | 28° / 27° | 9 | 21 | 0 | 252 mm | Good | Samoa in November |
| December | 28° / 27° | 8 | 23 | 0 | 281 mm | Good | Samoa in December |