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Climate of French Guiana
French Guiana has a tropical monsoon climate. 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.
Climate averages for the whole year
- Day: the average daily temperature during the day is between 28°C and 32°C
- Night:the average nighttime temperature is between 24°C and 25°C
- Rain: it rains 272 days and there is a total of approximately 1358 mm rainfall
- Sun hours: throughout the year there are 2882 sun hours
| Maximum temperature: | between 28°C and 32°C |
| Warmest month: | 32°C in September |
| Coldest month: | 28°C in January |
| Night temperature: | between 24°C and 25°C |
| Dry days: | 93 days |
| Days with rain: | 272 days |
| Days with snow: | 0 days |
| Total rain sum: | 1358 mm |
| Hours of sunshine: | 2882 hours |
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Temperature graph
This graph shows the average maximum temperature (red) and minimum temperature (blue) for French Guiana.
Precipitation graph
This graph shows the average amount of rainfall per month for French Guiana.
Climate table of French Guiana
In this climate table you can see at a glance what the average weather per month is for French Guiana. The data has been collected over a 30-year period, from which an average per month has been derived. From year to year the differences may be larger or smaller, but with this climate table you have a good idea of what the weather for French Guiana might be like in a given month.
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Day temp. (°C) | 28 | 28 | 28 | 28 | 29 | 29 | 30 | 31 | 32 | 32 | 31 | 29 |
| Night temp. (°C) | 24 | 24 | 24 | 25 | 25 | 24 | 24 | 24 | 25 | 25 | 25 | 24 |
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
| Precipitation (mm) | 155 | 168 | 123 | 162 | 192 | 138 | 90 | 47 | 22 | 26 | 65 | 170 |
| Days with rain | 28 | 26 | 27 | 27 | 29 | 28 | 26 | 17 | 12 | 11 | 16 | 25 |
| Dry days | 3 | 2 | 4 | 3 | 2 | 2 | 5 | 14 | 18 | 20 | 14 | 6 |
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
| Sun hours per day | 7 | 6 | 6 | 7 | 8 | 8 | 9 | 9 | 9 | 9 | 9 | 8 |
| Wind force (Bft) | 3 | 3 | 3 | 3 | 2 | 2 | 2 | 2 | 2 | 2 | 2 | 3 |
| UV-index | 6 | 6 | 6 | 6 | 6 | 7 | 7 | 7 | 7 | 7 | 7 | 6 |
Best time to visit French Guiana
To go to French Guiana, the best time to visit is July through November. In this period you have a warm temperature and little precipitation. In French Guiana, September is the warmest month with 32°C and the most cold month is 28°C in January.
Climate of French Guiana by month
What is the average climate in a given month for French Guiana? Click on a month to see all monthly averages for sunshine, maximum and minimum temperatures, percent chance of rain per day, snowfall and number of rainy days.
French Guiana weather experiences
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