The climate of French Guiana, city by city
This page lists the 5 cities in French Guiana for which climate normals are available. Each entry covers temperature, rainfall and how the climate changed between 1940 and 2025, computed from ERA5 reanalysis data.
+1.4 °C since 1940
Frequently asked questions
What is the hottest city in French Guiana?
The hottest city in French Guiana is Cayenne, with an average annual temperature of 26.1 °C.
What is the coldest city in French Guiana?
The coldest city in French Guiana is Matoury, with an average annual temperature of 25.6 °C.
What is the wettest city in French Guiana?
The wettest city in French Guiana is Matoury, with 2,910 mm of precipitation per year.
Has the climate of French Guiana warmed?
Based on its largest cities, French Guiana warmed by +1.4 °C between 1940 and 2025.