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.

Average monthly minimum and maximum temperature in Cayenne, French Guiana

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Monthly hours of sunshine

The average monthly total hours of sunshine over the year

Average monthly hours of sunshine in Cayenne, French Guiana

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Average water temperature

The mean water temperature over the year.

Average monthly water temperature in Cayenne, French Guiana

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Monthly precipitation

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

Average monthly rainfall, snow, precipitation in Cayenne, French Guiana

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Monthly rainy days

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

Average monthly rainy days in Cayenne, French Guiana

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Average humidity

The mean monthly relative humidity over the year

Average monthly relative humidity in Cayenne, French Guiana

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Average wind speed

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

Average monthly wind speed in Cayenne, French Guiana

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Weather Forecasts for Cayenne

Tue   Mar 19
32°C | 26°C
NE 25 km/h
2.2 mm
partly cloudy and  chance of rain

partly cloudy and chance of rain

Wed   Mar 20
32°C | 25°C
E 25 km/h
1.3 mm
broken clouds and  chance of rain

broken clouds and chance of rain

Thu   Mar 21
33°C | 25°C
NE 25 km/h
broken clouds and no rain

broken clouds and no rain

The best time of year to visit Cayenne in French Guiana

Cayenne has high temperatures year round ranging between 29°C and 32°C.
Other facts from our historical weather data:

  • Which is the hottest month in Cayenne?
    October has an average maximum temperature of 33°C 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.
  • Which is the wettest month in Cayenne?
    May tops the wettest month list with 403 mm of rainfall.
  • Which is the driest month in Cayenne?
    September is the driest month with 65 mm 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 have a tool that recommends destinations based on your ideal conditions. Find out where to go with our weather planner.