French GuianaThe weather in May in Cayenne
It's hot in May in Cayenne 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 Cayenne. 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 Cayenne, 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, Cayenne 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 Cayenne
Click on any day in May to get detailed info about the usual weather on that day in Cayenne. Check out the historical temperatures and precipitation over the past 10 years on this day.
May weather comparison
| Cayenne | 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 Cayenne 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 Cayenne 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 Cayenne for all months and discover the best travel time
Temperature charts
These charts show the average temperatures in May in Cayenne, 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 Cayenne
Temperature in May in Cayenne over the years
Precipitation charts
These charts show the average amount of precipitation in May in Cayenne, 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 Cayenne
Total precipitation in May in Cayenne over the years
Daily UV index in May in Cayenne
This chart shows the average daily UV index in May in Cayenne, 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 Cayenne
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Average weather in Cayenne by month
Click on a month below to see detailed weather info for Cayenne. Based on historical weather data, you can see the average temperature, precipitation, wind, and UV index for each day of the month.