Libreville weather in September 2025

Expect 27°C daytime maximum temperatures in the shade with on average 3 hours of sunshine per day in Libreville in September. Check more long-term weather averages for Libreville in September before you book your next holiday to Gabon in 2025/2026.

  • 27°C maximum daytime temperature in September in Libreville27
    27°C max day temperature
  • 3 hours of sunshine per day
  • 15 days with some rainfall in September in Libreville15
    15 days with some rainfall
  • 22°C minimum night-time temperature in September in Libreville22
    22°C min night temperature
  • 12 hours of daylight per day in September in Libreville12
    12 hours of daylight per day
  • High heat & humidity in September in LibrevilleH
    High heat & humidity
  • 116 mm monthly rainfall in September in Libreville116
    116 mm of monthly rainfall
  • UV (maximum) index 11+ (Extreme) in September in Libreville11
    11+ (Extreme) UV index
  • 26°C sea temperature in September in Libreville26
    26°C sea temperature

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The September weather guide for Gabon (Libreville) 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 Libreville in September?

Daytime temperatures usually reach 27°C in Libreville in September with high heat and humidity, falling to 22°C at night.

How sunny is it in Libreville in September?

There are normally 3 hours of bright sunshine each day in Libreville in September - that's 26% of daylight hours.

How warm is the sea around Libreville in September?

The average sea temperature around Libreville in September is 26°C.

Does it rain in Libreville in September?

There are usually 15 days with some rain in Libreville in September and the average monthly rainfall is 116mm.

Libreville September sunrise & sunset times

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

JanFebMarAprMayJunJulAugSepOctNovDec

Date Sunrise times Sunset times
Monday, 1st September 2025 06:19 18:26
Monday, 15th September 2025 06:14 18:21
Tuesday, 30th September 2025 06:09 18:15

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