Click on a day for an hourly weather forecast
The weather in Grande Comore in September is very hot. The average temperatures are between 24°C and 26°C, drinking water regularly is advisable.
You can expect a few rainy days in Grande Comore 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 Grande Comore in September 2025.
If you’re planning to visit Grande Comore in the near future, we highly recommend that you review the 14 day weather forecast for Grande Comore before you arrive.
| Month | Temperatures | Rainy Days | Dry Days | Snowy Days | Rainfall | Weather | More details |
|---|---|---|---|---|---|---|---|
| January | 28° / 27° | 13 | 18 | 0 | 338 mm | Good | Grande Comore in January |
| February | 28° / 27° | 12 | 17 | 0 | 263 mm | Good | Grande Comore in February |
| March | 29° / 27° | 13 | 18 | 0 | 267 mm | Ok | Grande Comore in March |
| April | 29° / 27° | 12 | 18 | 0 | 267 mm | Ok | Grande Comore in April |
| May | 28° / 26° | 5 | 26 | 0 | 151 mm | Perfect | Grande Comore in May |
| June | 27° / 25° | 2 | 28 | 0 | 60 mm | Perfect | Grande Comore in June |
| July | 26° / 24° | 2 | 29 | 0 | 41 mm | Perfect | Grande Comore in July |
| August | 25° / 24° | 1 | 30 | 0 | 30 mm | Perfect | Grande Comore in August |
| September | 26° / 24° | 1 | 29 | 0 | 33 mm | Perfect | Grande Comore in September |
| October | 27° / 25° | 2 | 29 | 0 | 48 mm | Perfect | Grande Comore in October |
| November | 28° / 26° | 4 | 26 | 0 | 68 mm | Perfect | Grande Comore in November |
| December | 29° / 27° | 9 | 22 | 0 | 172 mm | Ok | Grande Comore in December |