Click on a day for an hourly weather forecast
The temperatures in Nyanza in September are comfortable with low of 18°C and and high up to 28°C.
You can expect rain for roughly half of the month of September in Nyanza. We’re expecting roughly 8 to 15 days of rain, so your rubber boots and umbrella are going to see plenty of use this month if you’re keen on staying dry.
Our weather forecast can give you a great sense of what weather to expect in Nyanza in September 2025.
If you’re planning to visit Nyanza in the near future, we highly recommend that you review the 14 day weather forecast for Nyanza before you arrive.
| Month | Temperatures | Rainy Days | Dry Days | Snowy Days | Rainfall | Weather | More details |
|---|---|---|---|---|---|---|---|
| January | 30° / 18° | 3 | 29 | 0 | 79 mm | Good | Nyanza in January |
| February | 32° / 19° | 2 | 26 | 0 | 77 mm | Good | Nyanza in February |
| March | 31° / 18° | 9 | 22 | 0 | 188 mm | Ok | Nyanza in March |
| April | 28° / 18° | 19 | 11 | 0 | 409 mm | Good | Nyanza in April |
| May | 26° / 17° | 22 | 9 | 0 | 514 mm | Good | Nyanza in May |
| June | 26° / 17° | 15 | 15 | 0 | 274 mm | Good | Nyanza in June |
| July | 26° / 17° | 8 | 23 | 0 | 194 mm | Good | Nyanza in July |
| August | 27° / 17° | 11 | 20 | 0 | 268 mm | Good | Nyanza in August |
| September | 28° / 18° | 14 | 16 | 0 | 281 mm | Good | Nyanza in September |
| October | 29° / 18° | 15 | 16 | 0 | 329 mm | Ok | Nyanza in October |
| November | 28° / 17° | 14 | 16 | 0 | 313 mm | Good | Nyanza in November |
| December | 28° / 17° | 7 | 24 | 0 | 172 mm | Good | Nyanza in December |