Cayenne weather in May 2023

  • 29°C maximum daytime temperature in May in Cayenne29
    29°C max day temperature
  • 4 hours of sunshine per day
  • 26 days with some rainfall in May in Cayenne26
    26 days with some rainfall
  • 23°C minimum night-time temperature in May in Cayenne23
    23°C min night temperature
  • 12 hours of daylight per day in May in Cayenne12
    12 hours of daylight per day
  • High heat & humidity in May in CayenneH
    High heat & humidity
  • 544 mm monthly rainfall in May in Cayenne544
    544 mm of monthly rainfall
  • UV (maximum) index 11+ (Extreme) in May in Cayenne11
    11+ (Extreme) UV index
  • 27°C sea temperature in May in Cayenne27
    27°C sea temperature
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Recommended for French Guiana

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.

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

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How hot is it in Cayenne in May?

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

How sunny is it in Cayenne in May?

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

How warm is the sea around Cayenne in May?

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

Does it rain in Cayenne in May?

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

Cayenne May sunrise & sunset times

Browse the sunrise and sunset times for Cayenne in May 2023. Select a month to view Cayenne sunrise and sunset times for the next 12 months.


Date Sunrise times Sunset times
Monday, 1st May 2023 06:18 18:35
Tuesday, 16th May 2023 06:15 18:36
Wednesday, 31st May 2023 06:15 18:39

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