Guinea-Bissau weather in May 2025

Expect 35°C daytime maximum temperatures in the shade with on average 8 hours of sunshine per day in Guinea-Bissau in May. Check more long-term weather averages for Guinea-Bissau in May before you book your next holiday to Guinea-Bissau in 2025/2026.

  • 35°C maximum daytime temperature in May in Guinea-Bissau (Bissau)35
    35°C max day temperature
  • 8 hours of sunshine per day
  • 3 days with some rainfall in May in Guinea-Bissau (Bissau)3
    3 days with some rainfall
  • 22°C minimum night-time temperature in May in Guinea-Bissau (Bissau)22
    22°C min night temperature
  • 13 hours of daylight per day in May in Guinea-Bissau (Bissau)13
    13 hours of daylight per day
  • High heat & humidity in May in Guinea-Bissau (Bissau)H
    High heat & humidity
  • 21 mm monthly rainfall in May in Guinea-Bissau (Bissau)21
    21 mm of monthly rainfall
  • UV (maximum) index 11+ (Extreme) in May in Guinea-Bissau (Bissau)11
    11+ (Extreme) UV index
  • 27°C sea temperature in May in Guinea-Bissau (Bissau)27
    27°C sea temperature

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The May 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.

Top Guinea-Bissau destinations

Below are average maximum temperatures at popular countries, regions and places in Guinea-Bissau in May. Select a holiday destination to see more weather parameters.

All Guinea-Bissau destinations

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

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How hot is it in Guinea-Bissau in May?

Daytime temperatures usually reach 35°C in Bissau, Guinea-Bissau in May with high heat and humidity, falling to 22°C at night.

How sunny is it in Guinea-Bissau in May?

There are normally 8 hours of bright sunshine each day in Bissau, Guinea-Bissau in May - that's 66% of daylight hours.

How warm is the sea around Guinea-Bissau in May?

The average sea temperature around Bissau, Guinea-Bissau in May is 27°C.

Does it ever rain in Guinea-Bissau in May?

There are usually 3 days with some rain in Bissau, Guinea-Bissau in May and the average monthly rainfall is 21mm.

Guinea-Bissau May sunrise & sunset times

Browse the sunrise and sunset times for Guinea-Bissau in May 2025. Select a month to view Guinea-Bissau sunrise and sunset times for the next 12 months. The Guinea-Bissau sunrise and sunset times shown below are for Bissau.

JanFebMarAprMayJunJulAugSepOctNovDec

Date Sunrise times Sunset times
Thursday, 1st May 2025 06:43 19:16
Friday, 16th May 2025 06:38 19:19
Saturday, 31st May 2025 06:37 19:23

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