Click on a day for an hourly weather forecast
The weather in Mombasa in September is very hot. The average temperatures are between 23°C and 29°C, drinking water regularly is advisable.
You can expect a few rainy days in Mombasa 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 Mombasa in September 2025.
If you’re planning to visit Mombasa in the near future, we highly recommend that you review the 14 day weather forecast for Mombasa before you arrive.
| Month | Temperatures | Rainy Days | Dry Days | Snowy Days | Rainfall | Weather | More details |
|---|---|---|---|---|---|---|---|
| January | 31° / 25° | 3 | 28 | 0 | 54 mm | Good | Mombasa in January |
| February | 32° / 25° | 2 | 26 | 0 | 37 mm | Good | Mombasa in February |
| March | 32° / 26° | 4 | 27 | 0 | 73 mm | Good | Mombasa in March |
| April | 31° / 25° | 4 | 27 | 0 | 90 mm | Good | Mombasa in April |
| May | 30° / 24° | 4 | 27 | 0 | 107 mm | Good | Mombasa in May |
| June | 29° / 23° | 1 | 29 | 0 | 34 mm | Good | Mombasa in June |
| July | 28° / 22° | 0 | 31 | 0 | 33 mm | Perfect | Mombasa in July |
| August | 28° / 22° | 0 | 31 | 0 | 37 mm | Perfect | Mombasa in August |
| September | 29° / 23° | 1 | 29 | 0 | 42 mm | Good | Mombasa in September |
| October | 30° / 24° | 3 | 28 | 0 | 73 mm | Good | Mombasa in October |
| November | 31° / 24° | 3 | 27 | 0 | 75 mm | Good | Mombasa in November |
| December | 31° / 25° | 6 | 25 | 0 | 119 mm | Good | Mombasa in December |