Cotonou weather in August 2025

Expect 28°C daytime maximum temperatures in the shade with on average 4 hours of sunshine per day in Cotonou in August. Check more long-term weather averages for Cotonou in August before you book your next holiday to Benin in 2025/2026.

  • 28°C maximum daytime temperature in August in Cotonou28
    28°C max day temperature
  • 4 hours of sunshine per day
  • 9 days with some rainfall in August in Cotonou9
    9 days with some rainfall
  • 23°C minimum night-time temperature in August in Cotonou23
    23°C min night temperature
  • 12 hours of daylight per day in August in Cotonou12
    12 hours of daylight per day
  • Moderate heat & humidity in August in CotonouM
    Moderate heat & humidity
  • 63 mm monthly rainfall in August in Cotonou63
    63 mm of monthly rainfall
  • UV (maximum) index 11+ (Extreme) in August in Cotonou11
    11+ (Extreme) UV index
  • 25°C sea temperature in August in Cotonou25
    25°C sea temperature

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The August weather guide for Benin (Cotonou) 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 / mm)  |  Imperial (°F / inches)

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How hot is it in Cotonou in August?

Daytime temperatures usually reach 28°C in Cotonou in August with moderate heat and humidity, falling to 23°C at night.

How sunny is it in Cotonou in August?

There are normally 4 hours of bright sunshine each day in Cotonou in August - that's 36% of daylight hours.

How warm is the sea around Cotonou in August?

The average sea temperature around Cotonou in August is 25°C.

Does it rain in Cotonou in August?

There are usually 9 days with some rain in Cotonou in August and the average monthly rainfall is 63mm.

Cotonou August sunrise & sunset times

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

JanFebMarAprMayJunJulAugSepOctNovDec

Date Sunrise times Sunset times
Friday, 1st August 2025 06:45 19:08
Saturday, 16th August 2025 06:45 19:04
Sunday, 31st August 2025 06:43 18:58

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