French Guiana weather in May 2024

Expect 29°C daytime maximum temperatures in the shade with on average 4 hours of sunshine per day in French Guiana in May. Check more long-term weather averages for French Guiana in May before you book your next holiday to French Guiana in 2024/2025.

  • 29°C maximum daytime temperature in May in French Guiana (Cayenne)29
    29°C max day temperature
  • 4 hours of sunshine per day
  • 26 days with some rainfall in May in French Guiana (Cayenne)26
    26 days with some rainfall
  • 23°C minimum night-time temperature in May in French Guiana (Cayenne)23
    23°C min night temperature
  • 12 hours of daylight per day in May in French Guiana (Cayenne)12
    12 hours of daylight per day
  • High heat & humidity in May in French Guiana (Cayenne)H
    High heat & humidity
  • 544 mm monthly rainfall in May in French Guiana (Cayenne)544
    544 mm of monthly rainfall
  • UV (maximum) index 11+ (Extreme) in May in French Guiana (Cayenne)11
    11+ (Extreme) UV index
  • 27°C sea temperature in May in French Guiana (Cayenne)27
    27°C sea temperature

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The May weather guide for French Guiana, represented by Cayenne, (Cayenne) 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 French Guiana in May?

Daytime temperatures usually reach 29°C in Cayenne, French Guiana in May with high heat and humidity, falling to 23°C at night.

How sunny is it in French Guiana in May?

There are normally 4 hours of bright sunshine each day in Cayenne, French Guiana in May - that's 36% of daylight hours.

How warm is the sea around French Guiana in May?

The average sea temperature around Cayenne, French Guiana in May is 27°C.

Does it rain in French Guiana in May?

There are usually 26 days with some rain in Cayenne, French Guiana in May and the average monthly rainfall is 544mm.

French Guiana May sunrise & sunset times

Browse the sunrise and sunset times for French Guiana in May 2024. Select a month to view French Guiana sunrise and sunset times for the next 12 months. The French Guiana sunrise and sunset times shown below are for Cayenne.

JanFebMarAprMayJunJulAugSepOctNovDec

Date Sunrise times Sunset times
Wednesday, 1st May 2024 06:17 18:35
Thursday, 16th May 2024 06:15 18:36
Friday, 31st May 2024 06:15 18:39

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