Click on a day for an hourly weather forecast
The weather in Dominica in September is very hot. The average temperatures are between 25°C and 31°C, drinking water regularly is advisable.
You can expect about 3 to 8 days of rain in Dominica 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 Dominica in September 2025.
If you’re planning to visit Dominica in the near future, we highly recommend that you review the 14 day weather forecast for Dominica before you arrive.
| Month | Temperatures | Rainy Days | Dry Days | Snowy Days | Rainfall | Weather | More details |
|---|---|---|---|---|---|---|---|
| January | 28° / 23° | 1 | 30 | 0 | 58 mm | Perfect | Dominica in January |
| February | 28° / 22° | 2 | 27 | 0 | 49 mm | Perfect | Dominica in February |
| March | 28° / 23° | 1 | 30 | 0 | 49 mm | Perfect | Dominica in March |
| April | 27° / 23° | 4 | 26 | 0 | 94 mm | Perfect | Dominica in April |
| May | 28° / 24° | 4 | 27 | 0 | 113 mm | Perfect | Dominica in May |
| June | 29° / 24° | 3 | 27 | 0 | 84 mm | Good | Dominica in June |
| July | 29° / 25° | 5 | 26 | 0 | 121 mm | Good | Dominica in July |
| August | 30° / 25° | 6 | 25 | 0 | 180 mm | Good | Dominica in August |
| September | 31° / 25° | 7 | 23 | 0 | 183 mm | Ok | Dominica in September |
| October | 31° / 25° | 7 | 24 | 0 | 170 mm | Ok | Dominica in October |
| November | 30° / 25° | 4 | 26 | 0 | 140 mm | Good | Dominica in November |
| December | 29° / 24° | 2 | 29 | 0 | 77 mm | Good | Dominica in December |