Climate and Average Weather in French Guiana

French Guiana has tropical monsoon climate with a lot of precipitation throughout the year. There is a clear drier period and a long rainy season.The temperature in French Guiana is virtually all year around the tropical value of thirty degrees Celsius (86° Fahrenheit). In the dry season it is usually slightly warmer as the sun shines much more. At night the mercury drops well after midnight to a minimum value of approximately 23-24 degrees Celsius (71-76°F).

In the highlands of the Tumuk Humak mountains in the south of French Guiana it can be slightly cooler. The large amounts of rainfall and high temperatures provide a very high humidity so it may feel very clammy in French Guiana. This tropical dampness is experienced throughout the year.

Interested in more detailed Weather and Climate information?
Please select the city below you wish to travel to, or the one closest to your destination. Each selected city will show you the following graphs:
1. Average minimum and maximum temperatures over the year
2. Average monthly precipitation over the year (rainfall, snow etc)
3. Average monthly hours of sunshine over the year
On certain pages we also offer other historical weather data like humidity, wind speed and water temperature.

Places in French Guiana

Select a city to see its average temperature, precipitation and hours of sunshine over the year.

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