The best time to visit French Guiana is in March and June until November, when you will have a warm temperature and limited till mediocre rainfall. The highest average temperature in in French Guiana is 32°C in September and the lowest is 28°C in January.
French Guiana has the tropical monsoon climate prevailing. If you want to know what the average temperature is in French Guiana or when most precipitation (rain or snow) falls, you can find a quick overview below. This way, you are well prepared. Our average monthly climate data is based on data from the past 30 years.
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The French Guiana weather for will be 23° till 32° degrees in the next 14 days with every day chance of light rain showers till heavy rain.
The French Guiana weather forecast is based on the weather conditions in the city of Cayenne.
French Guiana 14 day weather forecast
Weather
Max/min
Precip
Wind
UV
Tuesday 17 may
28°C 22°C
13.3 mm 80%
1 Bft ENE
3
Wednesday 18 may
26°C 22°C
35 mm 90%
1 Bft NE
3
Thursday 19 may
27°C 22°C
21.6 mm 90%
1 Bft SE
3
Friday 20 may
24°C 21°C
26.2 mm 90%
1 Bft SSW
3
Saturday 21 may
23°C 21°C
5.2 mm 65%
0 Bft ESE
4
Climate French Guiana
French Guiana has the tropical monsoon climate prevailing. You have high temperatures and a lot of rainfall throughout the year. The average annual temperature for French Guiana is 29° degrees and there is about 1357 mm of rain in a year. It is dry for 67 days a year with an average humidity of 81% and an UV-index of 7.
What is the average French Guiana weather like in a given month? Let's find out! Click on a month to check all the monthly averages for sunshine, temperature highs and lows, percentage chance of rain per day, snowfall accumulation and number of rainy days.
28°C
31°C
32°C