Cayenne weather in March 2025

Expect 29°C daytime maximum temperatures in the shade with on average 5 hours of sunshine per day in Cayenne in March. Check more long-term weather averages for Cayenne in March before you book your next holiday to French Guiana in 2025/2026.

  • 29°C maximum daytime temperature in March in Cayenne29
    29°C max day temperature
  • 5 hours of sunshine per day
  • 22 days with some rainfall in March in Cayenne22
    22 days with some rainfall
  • 23°C minimum night-time temperature in March in Cayenne23
    23°C min night temperature
  • 12 hours of daylight per day in March in Cayenne12
    12 hours of daylight per day
  • High heat & humidity in March in CayenneH
    High heat & humidity
  • 374 mm monthly rainfall in March in Cayenne374
    374 mm of monthly rainfall
  • UV (maximum) index 11+ (Extreme) in March in Cayenne11
    11+ (Extreme) UV index
  • 27°C sea temperature in March in Cayenne27
    27°C sea temperature

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The March 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 Cayenne in March?

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

How sunny is it in Cayenne in March?

There are normally 5 hours of bright sunshine each day in Cayenne in March - that's 37% of daylight hours.

How warm is the sea around Cayenne in March?

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

Does it rain in Cayenne in March?

There are usually 22 days with some rain in Cayenne in March and the average monthly rainfall is 374mm.

Cayenne March sunrise & sunset times

Browse the sunrise and sunset times for Cayenne in March 2025. Select a month to view Cayenne sunrise and sunset times for the next 12 months.

JanFebMarAprMayJunJulAugSepOctNovDec

Date Sunrise times Sunset times
Saturday, 1st March 2025 06:41 18:42
Sunday, 16th March 2025 06:35 18:41
Monday, 31st March 2025 06:29 18:38

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