Temperatures in May
It's hot in May in French Guiana with an average temperature of 30°C. Temperatures this month range from a low of 29°C to a high of 31°C. At night, you can expect temperatures between 23°C and 25°C.
Max and Min Temperatures per Day
This chart shows the daily maximum and minimum temperatures in degrees Celsius for French Guiana in May. The red line indicates the max temperatures, and the blue line shows the minimums.
Start of May
The month of May starts in French Guiana with hot temperatures, averaging around 30°C during the day and nights close to 25°C. Plenty of days with a chance of precipitation. Breezy clothes like shorts or a dress, plus a hat and sunglasses, are ideal.
Mid-May
By mid-May, the average daytime temperature rises to around 31°C, with nights close to 25°C. The chance of precipitation is high during this period. Breezy clothes like shorts or a dress, plus a hat and sunglasses, are ideal.
End of May
By the end of May, the average daytime temperature in French Guiana will be around 31°C, with nights close to 24°C. There’s a significant chance of many days with precipitation. Breezy clothes like shorts or a dress, plus a hat and sunglasses, are ideal.
Discover cheap holidays to French Guiana 
Precipitation in May
In May, there is an average of 524 mm of precipitation, spread over 27 days. The wind speed is around 4 Bft, mostly coming from the East.
With an average precipitation chance of 86% this month, rainy days are almost inevitable.
Precipitation Chance
This chart shows the daily precipitation chance (in percentages) in May for French Guiana. 0% means it never rained on that day in the past 10 years, and 100% means it rained every day. All values in between represent the average chance of precipitation on that day.
French Guiana in May |
UK | ||
|---|---|---|---|
 Average Temperature |
30°C | 18°C | |
 High Temp |
31°C | 21°C | |
| Low Temp |
29°C | 15°C | |
 Total Precipitation |
524 mm | 46 mm | |
| Rainy Days |
27 days | 8 days | |
April
UV index
The UV index is a maximum of 8 this month. That's a very high value on the intensity scale of 1 to 11. Unprotected skin can burn within 10-15 minutes.
Is May a good time to visit French Guiana?
After some sun? Then May isn’t the best time to be in French Guiana. The temperature is pleasant, but there’s too much chance of rain this month.
Temperature records for French Guiana in May
With 37°C, French Guiana hit the highest temperature in the last 10 years in May 2015. The lowest daytime temperature in this month was 24°C in 2021. The extreme night temperatures ranged from a low of 15°C to a high of 26°C.
Check out the climate of French Guiana for all months and discover the best travel time
The climate of French Guiana is based on weather data from Cayenne. Other locations might have different weather. You can check out all destinations in French Guiana for a full picture of the climate.
Plan your next holiday
Don’t miss the best holiday deals for French Guiana and see what our partners have for you.
Daily Temperature in May in French Guiana
This chart shows the average daily temperatures, both day and night, for each day in May in French Guiana, measured in degrees Celsius. The red line represents the maximum temperatures, while the blue line shows the minimums. The days of the month are displayed at the bottom of the chart. The data, based on historical observations, gives an overview of the average daily temperatures during this month.
Weather experiences in May in French Guiana
Okay
Some days there were brilliant sunshine and temperatures aro... more
Daily Precipitation in May in French Guiana
The chart below shows the average daily precipitation in May for French Guiana, measured in millimetres over the past years. Precipitation is always measured as water, even if it’s snow or hail. The days of the month are shown at the bottom of the chart.
A low average precipitation means that the chance of rain on that day is usually small, while a higher average suggests that rain is more likely. But it’s still an average, so each day can be different. Based on historical weather data for May, you can expect around 27 days of rain in French Guiana.
Daily UV Index in May in French Guiana
This chart shows the average daily UV index in May in French Guiana, with the UV index ranging from 0 to a maximum of 11. The bottom of the chart shows the days of the month. Based on historical data, this chart provides an idea of the daily UV radiation levels you can expect.
Temperature in May in French Guiana Over the Years
This chart shows the average temperature in May in French Guiana, measured in degrees Celsius, over the past years.
Total Precipitation in May in French Guiana Over the Years
This chart shows the average precipitation in May in French Guiana, measured in millimetres over the past years. Precipitation is always measured as water, even if it’s snow or hail.
Daily climate in May for French Guiana
Click on a specific day in May for detailed info on the typical weather on that day in French Guiana. Check out the historical temperatures and precipitation over the past 10 years on this day.
Weather experiences in May in French Guiana
The weather in May in French Guiana is rated 3 out of 5 stars by 1 visitor. Have you been to French Guiana? Share your weather experience to help other visitors.
Write your own review
Some days there were brilliant sunshine and temperatures around 28°C, while others were surprisingly rainy and humid. This did not make the adventure any less entertaining.— This text is automatically translated to English
Have you been to French Guiana in May?
Share your weather experience in May in French Guiana.
Average Weather in French Guiana by Month
Click on a month below to see detailed weather info for French Guiana. Based on historical weather data, you can see the average temperature, precipitation, wind, and UV index for each day of the month.
Or check out the climate of French Guiana for all months at once
