Watamu weather in September 2025

Expect 82°F daytime maximum temperatures in the shade with on average 9 hours of sunshine per day in Watamu in September. Check more long-term weather averages for Watamu in September before you book your next holiday to Kenya in 2025/2026.

  • 82°F maximum daytime temperature in September in Watamu82
    82°F max day temperature
  • 9 hours of sunshine per day
  • 11 days with some rainfall in September in Watamu11
    11 days with some rainfall
  • 70°F minimum night-time temperature in September in Watamu70
    70°F min night temperature
  • 12 hours of daylight per day in September in Watamu12
    12 hours of daylight per day
  • Moderate heat & humidity in September in WatamuM
    Moderate heat & humidity
  • 2.4 inches monthly rainfall in September in Watamu2.4
    2.4 inches of monthly rainfall
  • UV (maximum) index 11+ (Extreme) in September in Watamu11
    11+ (Extreme) UV index
  • 77°F sea temperature in September in Watamu77
    77°F sea temperature

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The September weather guide for Kenya (Watamu) 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 Watamu in September?

Daytime temperatures usually reach 82°F in Watamu in September with moderate heat and humidity, falling to 70°F at night.

How sunny is it in Watamu in September?

There are normally 9 hours of bright sunshine each day in Watamu in September - that's 75% of daylight hours.

How warm is the sea around Watamu in September?

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

Does it rain in Watamu in September?

There are usually 11 days with some rain in Watamu in September and the average monthly rainfall is 2.4 inches.

Watamu September sunrise & sunset times

Browse the sunrise and sunset times for Watamu in September 2025. Select a month to view Watamu sunrise and sunset times for the next 12 months.

JanFebMarAprMayJunJulAugSepOctNovDec

Date Sunrise times Sunset times
Monday, 1st September 2025 06:19 18:21
Monday, 15th September 2025 06:12 18:18
Tuesday, 30th September 2025 06:06 18:14

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