Cayenne Weather and Climate: A Comprehensive Guide
Cayenne has a steady very warm climate throughout the year.
It also experiences much rainfall throughout the year.
Now, let’s explore all the climate details to give you a full picture.
Average maximum day and minimum night temperature
With minimal seasonal shifts, Cayenne experiences a constant climate year-round. Average daytime temperatures reach a very warm 33°C in October. In July, the coolest month of the year, temperatures drop to a comfortable 29°C.
At night, you can expect cooler temperatures, with averages dropping to around 23°C during this month. Check out our detailed temperature page for more information.Temperature ranges by month
Precipitation and rainy days
Cayenne has a notably wet climate with abundant precipitation, recording 2663 mm of rainfall per year. Cayenne can be quite wet during May, receiving approximately 403 mm of precipitation over 26 rainy days. In contrast September, experiences much drier conditions, with 65 mm of rainfall, spread across 5 rainy days. For more details, please visit our Cayenne Precipitation page.The mean monthly precipitation over the year, including rain, hail and snow
The average number of days each month with precipitation
Sunshine over the year
Cayenne can be enjoyed more throughout the sunniest month of October under a blue sky, with approximately 8.5 hours of sunshine daily. In contrast, the city experiences much darker days in February, with only 3.1 hours of sunlight per day. Visit our detailed sunshine hours page for more information.Monthly hours of sunshine
Daily hours of sunshine
Average water temperature
The mean water temperature over the year ranges from 27°C in January to 28°C in March.
Water temperature over the year
Average humidity
The relative humidity is high throughout the year in Cayenne.
The city experiences its highest humidity in May, reaching 85%. In September, the humidity drops to its lowest level at 71%. What does this mean? Read our detailed page on humidity levels for further details.
Relative humidity over the year
Average wind speed
The average wind speed over the year ranges from 2 m/s to 4 m/s. It is lower in June and July and higher in March.
The mean monthly wind speed over the year (meters per second)
broken clouds and no rain almost clear and no rain partly cloudy and chance of rainForecast for Cayenne
5 m/s
5 m/s
6 m/s
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:
October has an average maximum temperature of 33°C and is the hottest month of the year.
The coolest month is July with an average maximum temperature of 29°C.
May tops the wettest month list with 403 mm of rainfall.
September is the driest month with 65 mm of precipitation.
October is the sunniest month with an average of 256 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.
