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Cayenne Weather and Climate: A Comprehensive Guide

Cayenne has a steady very warm climate throughout the year. It is also known for its large amounts of rainfall. Let's now guide you through the climate details for a complete overview.

Average maximum day and minimum night temperature

The temperature in Cayenne remains steady throughout the year, providing a consistently very warm climate. Typically, average maximum daytime temperatures range from a very warm 32°C in October to a comfortable 29°C in the coolest month, July.

Nights are cooler, with lows often dropping to around 24°C during the colder months. Check out our detailed temperature page for more information.

Temperature ranges by month

Precipitation and rainy days

Cayenne has a relatively rainy climate with high precipitation levels, averaging 2591 mm of rainfall annually. The climate in Cayenne shows significant variation throughout the year. Expect heavy rainfall in May, with an average of 412 mm of precipitation over 26 rainy days.

In contrast, September offers drier and sunnier days, with around 50 mm of rainfall over 4 rainy days. For more details, please visit our Cayenne Precipitation page.

The mean monthly precipitation over the year, including rain, hail and snow

Sunshine over the year

For those who appreciate different seasons, Cayenne serves as an ideal destination. Expect longer, more sun-filled days in September with an average of 8.5 hours of sunshine daily, and embrace the darker days in February, offering only 3.0 hours of daily sunlight. Visit our detailed sunshine hours page for more information.

Monthly hours of sunshine

Daily hours of sunshine

Forecast for Cayenne

Wed   Jan 15
29°C | 23°C
NE 4 m/s
partly cloudy and no rain

partly cloudy and no rain

Thu   Jan 16
30°C | 23°C
NE 4 m/s
almost clear and no rain

almost clear and no rain

Fri   Jan 17
30°C | 24°C
NE 5 m/s
0.4 mm
partly cloudy and  chance of slight rain

partly cloudy and chance of slight rain

Select a Month of Interest

Check the conditions for any month of the year.

The best time of year to visit Cayenne in French Guiana

Cayenne has high temperatures year round ranging between 29°C and 32°C.
Other facts from our historical weather data:
  • Which is the hottest month in Cayenne?
    October has an average maximum temperature of 32°C and is the hottest month of the year.
  • Which is the coolest month in Cayenne?
    The coolest month is July with an average maximum temperature of 29°C.
  • Which is the wettest month in Cayenne?
    May tops the wettest month list with 412 mm of rainfall.
  • Which is the driest month in Cayenne?
    September is the driest month with 50 mm of precipitation.
  • Which is the sunniest month in Cayenne?
    September is the sunniest month with an average of 255 hours of sunshine.

  • No idea where to travel to this year? We have a tool that recommends destinations based on your ideal conditions. Find out where to go with our weather planner.