The weather in May in French Guiana
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.
Looking for sun? May isn’t a good month to be in French Guiana. The temperature is nice, but there’s too much chance of rain.
Average temperatures and precipitation
This chart shows the average daily maximum and minimum temperatures (in degrees Celsius) and precipitation (in millimeters) in May for French Guiana. A low precipitation value usually indicates little to no rainfall on that day in recent years, while a higher value suggests more frequent rainfall.
Temperature records
With 37°C in 2015, French Guiana reached the highest temperature in May over the past 10 years. The lowest daytime temperature in this month was 24°C in 2021. The extreme nighttime temperatures ranged from a lowest recorded value of 15°C to a highest value of 26°C.
Rainfall amount
In May, there is an average of 524 mm of precipitation, spread over 31 days. The wind speed is around 4 Bft, mostly coming from the East.
Daily weather in May for French Guiana
Click on any day in May to get detailed info about the usual weather on that day in French Guiana. Check out the historical temperatures and precipitation over the past 10 years on this day.
May weather comparison
| French Guiana | New York | |
|---|---|---|
| Average temperature | 30°C | 22°C |
| Max. temperature | 31°C | 28°C |
| Min. temperature | 23°C | -5°C |
| Total precipitation | 524 mm | 105 mm |
| Rainy days | 31 days | 14 days |
Start of May
The month of May starts in French Guiana with hot temps, averaging around 30°C during the day and nights around 25°C.
Mid May
By mid-May, daytime temps rise to around 31°C, with nights around 25°C. There’s a high chance of precipitation during this time.
End of May
By the end of May, the average daytime temperature in French Guiana is around 31°C, while nighttime temps are about 24°C. There’s a significant chance of many days with precipitation.
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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.
Check out the climate of French Guiana for all months and discover the best travel time
The climate in French Guiana is based on weather data from Cayenne. Other spots might have different weather. You can check out all destinations in French Guiana to get the full picture of the climate.
Temperature charts
These charts show the average temperatures in May in French Guiana. The temperatures are shown in degrees Celsius and are calculated based on data from the past 10 years.
Daily Temperature in May in French Guiana
Temperature in May in French Guiana over the years
Precipitation charts
These charts show the average amount of precipitation in May in French Guiana. Precipitation is always measured as water, even when it falls as snow or hail The amount of precipitation is displayed in millimeters, while snowfall is shown in centimeters.
Daily Precipitation in May in French Guiana
Total precipitation in May in French Guiana over the years
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.
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.
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Some days there were brilliant sunshine and temperatures around 28°C, while others were surprisingly rainy and humid. That didn't make the adventure any less entertaining.— This text is automatically translated to English
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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.