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Kenya weather in September 2025
Expect daytime maximum temperatures of 84°F in Kenya in September and high heat and humidity based on long-term weather averages. There are 9 hours of sunshine per day on average with 12 days with some rainfall and typically 2.6 inches of rainfall in the month.
- 84°F max day temperature
84 - 9 hours of sunshine per day
- 12 days with some rainfall
12 - 70°F min night temperature
70 - 12 hours of daylight per day
12 - Moderate heat & humidity
M - 2.6 inches of monthly rainfall
2.6 - 11+ (Extreme) UV index
11 - 77°F sea temperature
77
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Recommended for Kenya
The September weather guide for Kenya (Mombasa) shows long term weather averages processed from data supplied by CRU (University of East Anglia), the Met Office & the Netherlands Meteorological Institute. Find out more about our data sources.
Top Kenya destinations
Below are average maximum temperatures at popular countries, regions and places in Kenya in September. Select a holiday destination to see more weather parameters.
All Kenya destinations
- Amboseli
- Bamburi Beach
- Diani Beach
- Galu Beach
- Garissa
- Kikambala
- Lamu
- Lodwar
- Malindi
- Mara Lodges
- Mombasa
- Nairobi
- Naivasha
- Nakuru
- Nanyuki
- Nyali Beach
- Samburu
- Voi
- Wajir
- Watamu
Metric (°C) | Imperial (°F)
More about Kenya
How hot is it in Kenya in September?
Daytime temperatures usually reach 84°F in Mombasa, Kenya in September with moderate heat and humidity, falling to 70°F at night.
How sunny is it in Kenya in September?
There are normally 9 hours of bright sunshine each day in Mombasa, Kenya in September - that's 71% of daylight hours.
How warm is the sea around Kenya in September?
The average sea temperature around Mombasa, Kenya in September is 77°F.
Does it rain in Kenya in September?
There are usually 12 days with some rain in Mombasa, Kenya in September and the average monthly rainfall is 2.6 inches.
Kenya September sunrise & sunset times
Browse the sunrise and sunset times for Kenya in September 2025. Select a month to view Kenya sunrise and sunset times for the next 12 months. The Kenya sunrise and sunset times shown below are for Mombasa.
JanFebMarAprMayJunJulAugSepOctNovDec
| Date | Sunrise times | Sunset times |
|---|---|---|
| Monday, 1st September 2025 | 06:20 | 18:22 |
| Monday, 15th September 2025 | 06:14 | 18:19 |
| Tuesday, 30th September 2025 | 06:07 | 18:15 |
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