Average monthly snow and rainfall in Cayenne in millimeter
- A lot of rain (rainy season) falls in the months: January, February, March, April, May, June, July, August, September and December.
- On average, June is the wettest month.
- On average, October is the driest month.
- The average amount of annual precipitation is: 3525.0 mm (138.78 in)
Show average precipitation in Cayenne in Inches »
Weather Forecast for Cayenne
More climate information
Weather and Climate offers all the information you need to know about the climate in Cayenne.
We collected past weather data from many thousand weather stations around the world. So find on this website the historical weather averages in other cities in French Guiana and climate and forecast data for all other countries in the world.