Nairobi weather in September 2026

Expect daytime maximum temperatures of 75°F in Nairobi, Kenya in September based on long-term weather averages. There are 6 hours of sunshine per day on average.

  • 75°F maximum daytime temperature in September in Nairobi75
    75°F max day temperature
  • 6 hours of sunshine per day
  • 5 days with some rainfall in September in Nairobi5
    5 days with some rainfall
  • 52°F minimum night-time temperature in September in Nairobi52
    52°F min night temperature
  • 12 hours of daylight per day in September in Nairobi12
    12 hours of daylight per day
  • No heat & humidity in September in Nairobi0
    No heat & humidity
  • 1.1 inches monthly rainfall in September in Nairobi1.1
    1.1 inches of monthly rainfall
  • UV (maximum) index 11+ (Extreme) in September in Nairobi11
    11+ (Extreme) UV index

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The September weather guide for Kenya (Nairobi) 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.

Metric (°C)  |  Imperial (°F)

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More about Kenya

How hot is it in Nairobi in September?

Daytime temperatures usually reach 84°F in Nairobi in September with moderate heat and humidity, falling to 70°F at night.

How sunny is it in Nairobi in September?

There are normally 9 hours of bright sunshine each day in Nairobi in September - that's 71% of daylight hours.

How warm is the sea around Nairobi in September?

The average sea temperature around Nairobi in September is 77°F.

Does it rain in Nairobi in September?

There are usually 12 days with some rain in Nairobi in September and the average monthly rainfall is 2.6 inches.

Nairobi September sunrise & sunset times

Browse the sunrise and sunset times for Nairobi in September 2026. Select a month to view Nairobi sunrise and sunset times for the next 12 months.

JanFebMarAprMayJunJulAugSepOctNovDec

Date Sunrise times Sunset times
Tuesday, 1st September 2026 06:30 18:35
Tuesday, 15th September 2026 06:25 18:31
Wednesday, 30th September 2026 06:19 18:26

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