Bissau weather in September 2024

Expect 30°C daytime maximum temperatures in the shade with on average 6 hours of sunshine per day in Bissau in September. Check more long-term weather averages for Bissau in September before you book your next holiday to Guinea-Bissau in 2024/2025.

  • 30°C maximum daytime temperature in September in Bissau30
    30°C max day temperature
  • 6 hours of sunshine per day
  • 19 days with some rainfall in September in Bissau19
    19 days with some rainfall
  • 23°C minimum night-time temperature in September in Bissau23
    23°C min night temperature
  • 12 hours of daylight per day in September in Bissau12
    12 hours of daylight per day
  • High heat & humidity in September in BissauH
    High heat & humidity
  • 389 mm monthly rainfall in September in Bissau389
    389 mm of monthly rainfall
  • UV (maximum) index 11+ (Extreme) in September in Bissau11
    11+ (Extreme) UV index
  • 28°C sea temperature in September in Bissau28
    28°C sea temperature

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The September weather guide for Guinea-Bissau (Bissau) 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 Bissau in September?

Daytime temperatures usually reach 30°C in Bissau in September with high heat and humidity, falling to 23°C at night.

How sunny is it in Bissau in September?

There are normally 6 hours of bright sunshine each day in Bissau in September - that's 49% of daylight hours.

How warm is the sea around Bissau in September?

The average sea temperature around Bissau in September is 28°C.

Does it rain in Bissau in September?

There are usually 19 days with some rain in Bissau in September and the average monthly rainfall is 389mm.

What is the chance of a hurricane in Bissau in September?

On average less than 1 day in September in Bissau is likely to be affected by the passage of one or more tropical storms.

Bissau September sunrise & sunset times

Browse the sunrise and sunset times for Bissau in September 2024. Select a month to view Bissau sunrise and sunset times for the next 12 months.


Date Sunrise times Sunset times
Sunday, 1st September 2024 06:52 19:12
Sunday, 15th September 2024 06:52 19:03
Monday, 30th September 2024 06:51 18:53

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