French GuianaThe climate of Cayenne
The current climate in Cayenne features temperatures ranging from a high of 34°C to a low of 29°C throughout the year. The average yearly temperature is around 31°C. At night, temperatures in the colder months average around 23°C and in the warmer months around 24°C.
Average temperatures and precipitation
This chart shows the average monthly maximum and minimum temperatures (in degrees Celsius) and average monthly rainfall (in millimeters) for Cayenne, French Guiana.
Temperature records
The highest temperature recorded in Cayenne in recent years was 39°C in October 2023. The lowest daytime temperature recorded was 22°C in January 2023.
Rainfall amount
On average, Cayenne receives 3072 mm of precipitation each year. For comparison, New York gets 1142 mm of precipitation annually.
Best time to visit Cayenne?
The best time to visit Cayenne for mild to warm weather is September and October. You might get some rain, but the temperatures are just right to explore Cayenne.
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Climate Table of Cayenne
The climate table of Cayenne shows the average temperatures, rainfall, and UV index per month. The table provides an overview of the average day and night temperatures in degrees Celsius, the total amount of rainfall in millimeters, the total snowfall in centimeters, and the UV index for each month. Rainfall is always measured as water, even if it's snow or hail.
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
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| Temp. max (°C) | 29 | 29 | 30 | 30 | 30 | 31 | 31 | 32 | 33 | 34 | 32 | 31 |
| Temp. min (°C) | 23 | 24 | 24 | 24 | 24 | 23 | 23 | 23 | 23 | 23 | 24 | 24 |
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| Precipitation (mm) | 284 | 322 | 290 | 329 | 524 | 295 | 290 | 141 | 78 | 39 | 142 | 338 |
| UV Index | 7 | 7 | 8 | 7 | 7 | 7 | 8 | 9 | 9 | 9 | 8 | 7 |
Click on the month name to see more weather details, like daily averages, temperatures, and precipitation for the past years in that month.
Temperature charts
These charts display the average temperatures in Cayenne, French Guiana. The temperatures are shown in degrees Celsius and are calculated based on data from the past 10 years.
Average Temperature per Month in Cayenne
Yearly Temperature in Cayenne
Precipitation charts
These charts show the average amount of precipitation 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.
Average Precipitation per Month in Cayenne
Total Yearly Precipitation in Cayenne
UV index chart
This chart shows the average UV index per month in Cayenne, French Guiana. The UV index indicates the intensity of ultraviolet radiation and ranges from 0 to a maximum of 11.
Average UV Index per Month in Cayenne
Weather experiences 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.