The climate of Saint Lucia, city by city
This page lists the 2 cities in Saint Lucia 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.
+1.2 °C since 1940
Frequently asked questions
What is the hottest city in Saint Lucia?
The hottest city in Saint Lucia is Castries, with an average annual temperature of 26.3 °C.
What is the coldest city in Saint Lucia?
The coldest city in Saint Lucia is Castries, with an average annual temperature of 26.3 °C.
What is the wettest city in Saint Lucia?
The wettest city in Saint Lucia is Castries, with 864 mm of precipitation per year.
Has the climate of Saint Lucia warmed?
Based on its largest cities, Saint Lucia warmed by +1.2 °C between 1940 and 2025.