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Climate in Cayenne (French Guiana)

The graphs below show the monthly weather averages over the year.

Average day and night temperature

The mean minimum and maximum temperatures over the year. Show in Fahrenheit

Average min and max temperatures in Cayenne, French Guiana Copyright © 2023 weather-and-climate.com

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Monthly hours of sunshine

The average monthly total hours of sunshine over the year

Average monthly sunhours in Cayenne, French Guiana Copyright © 2023 weather-and-climate.com

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Average water temperature

The mean water temperature over the year. Show in Fahrenheit

Average water temperatures in Cayenne, French Guiana Copyright © 2023 weather-and-climate.com

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Monthly precipitation

The mean monthly precipitation over the year, including rain, snow, hail etc. Show in Inches

Average precipitation (rain/snow) in Cayenne, French Guiana Copyright © 2023 weather-and-climate.com

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Monthly rainy days

The average number of days each month with rain, snow, hail etc.

Average rainy days (rain/snow) in Cayenne, French Guiana Copyright © 2023 weather-and-climate.com

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Average humidity

The mean monthly relative humidity over the year

Average relative humidity in Cayenne, French Guiana Copyright © 2023 weather-and-climate.com

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Average wind speed

The mean monthly wind speed over the year (in meters per second)

Average wind speed in Cayenne, French Guiana Copyright © 2023 weather-and-climate.com

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Weather Forecasts for Cayenne

Show in Fahrenheit
Wed   Oct 04
33°C | 23°C
E 18 km/h
partly cloudy and no rain

partly cloudy and no rain

hourly forecast
Thu   Oct 05
33°C | 23°C
E 18 km/h
0.4 mm
partly cloudy and small chance of slight rain

partly cloudy and small chance of slight rain

hourly forecast
Fri   Oct 06
33°C | 24°C
E 14 km/h
0.8 mm
partly cloudy and small chance of rain

partly cloudy and small chance of rain

hourly forecast
5-Day Forecast 10-Day Forecast

The best time of year to visit Cayenne in French Guiana

Cayenne has high temperatures year round ranging between 29°C (84°F) and 32°C (90°F).
Other facts from our historical climate data:

  • Which is the hottest month in Cayenne?
    October has an average maximum temperature of 33°C (91°F) and is the hottest month of the year.
  • Which is the coolest month in Cayenne?
    The coolest month is July with an average maximum temperature of 29°C (85°F).
  • Which is the wettest month in Cayenne?
    May tops the wettest month list with 403mm (15.9in) of rainfall.
  • Which is the driest month in Cayenne?
    September is the driest month with 65mm (2.6in) of precipitation.
  • Which is the sunniest month in Cayenne?
    October is the sunniest month with an average of 256 hours of sunshine.

    • No idea where to travel to this year? We now have a tool which suggests which destination suits your ideal climate conditions. Find out where to go with our weather planner.