28 to 32°C
temperature
2882 hours
sunshine per day
1358 mm
rain
93 days
dry
272 days
rain
0 days
snow

Climate of Cayenne

Cayenne has a tropical rainforest climate. It is usually (very) warm, humid and rainy all year round. The average annual temperature for Cayenne 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
  • Sea temperature: the sea temperature is between 29°C and 31°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
Sea temperature: between 29°C and 31°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 Cayenne.

Precipitation graph

This graph shows the average amount of rainfall per month for Cayenne.

Climate table of Cayenne

In this climate table you can see at a glance what the average weather per month is for Cayenne. 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 Cayenne 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
Water temp. (°C) 29 29 29 29 30 30 30 30 30 31 29 29
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 Cayenne

The best time to visit Cayenne in French Guiana is from July through November. In this period you have a warm temperature and little precipitation. The highest average temperature in Cayenne is 32°C in September and the lowest is 28°C in January. The average water temperature is around 30°C.

Climate of Cayenne by month

What is the average climate in a given month for Cayenne? 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.

Cayenne weather experiences

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