Gabon weather in September 2025

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

  • 27°C maximum daytime temperature in September in Gabon (Libreville)27
    27°C max day temperature
  • 3 hours of sunshine per day
  • 15 days with some rainfall in September in Gabon (Libreville)15
    15 days with some rainfall
  • 22°C minimum night-time temperature in September in Gabon (Libreville)22
    22°C min night temperature
  • 12 hours of daylight per day in September in Gabon (Libreville)12
    12 hours of daylight per day
  • High heat & humidity in September in Gabon (Libreville)H
    High heat & humidity
  • 116 mm monthly rainfall in September in Gabon (Libreville)116
    116 mm of monthly rainfall
  • UV (maximum) index 11+ (Extreme) in September in Gabon (Libreville)11
    11+ (Extreme) UV index
  • 26°C sea temperature in September in Gabon (Libreville)26
    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.

Top Gabon destinations

Below are average maximum temperatures at popular countries, regions and places in Gabon in September. Select a holiday destination to see more weather parameters.

All Gabon destinations

Metric (°C / mm)  |  Imperial (°F / inches)

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How hot is it in Gabon in September?

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

How sunny is it in Gabon in September?

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

How warm is the sea around Gabon in September?

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

Does it rain in Gabon in September?

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

Gabon September sunrise & sunset times

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

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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