Brazzaville weather in September 2025

Expect 86°F daytime maximum temperatures in the shade with on average 6 hours of sunshine per day in Brazzaville in September. Check more long-term weather averages for Brazzaville in September before you book your next holiday to Congo-Brazzaville in 2025/2026.

  • 86°F maximum daytime temperature in September in Brazzaville86
    86°F max day temperature
  • 6 hours of sunshine per day
  • 4 days with some rainfall in September in Brazzaville4
    4 days with some rainfall
  • 70°F minimum night-time temperature in September in Brazzaville70
    70°F min night temperature
  • 12 hours of daylight per day in September in Brazzaville12
    12 hours of daylight per day
  • High heat & humidity in September in BrazzavilleH
    High heat & humidity
  • 1.3 inches monthly rainfall in September in Brazzaville1.3
    1.3 inches of monthly rainfall
  • UV (maximum) index 11+ (Extreme) in September in Brazzaville11
    11+ (Extreme) UV index

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The September weather guide for Congo-Brazzaville (Brazzaville) 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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How hot is it in Brazzaville in September?

Daytime temperatures usually reach 86°F in Brazzaville in September with high heat and humidity, falling to 70°F at night.

How sunny is it in Brazzaville in September?

There are normally 6 hours of bright sunshine each day in Brazzaville in September - that's 46% of daylight hours.

Does it rain in Brazzaville in September?

There are usually 4 days with some rain in Brazzaville in September and the average monthly rainfall is 1.3 inches.

Brazzaville September sunrise & sunset times

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

JanFebMarAprMayJunJulAugSepOctNovDec

Date Sunrise times Sunset times
Monday, 1st September 2025 05:58 18:00
Monday, 15th September 2025 05:52 17:56
Tuesday, 30th September 2025 05:45 17:53

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