The climate of Guam, city by city
This page lists the 4 cities in Guam 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.
+0.7 °C since 1940
Frequently asked questions
What is the hottest city in Guam?
The hottest city in Guam is Tamuning-Tumon-Harmon Village, with an average annual temperature of 26.9 °C.
What is the coldest city in Guam?
The coldest city in Guam is Tamuning-Tumon-Harmon Village, with an average annual temperature of 26.9 °C.
What is the wettest city in Guam?
The wettest city in Guam is Yigo Village, with 1,879 mm of precipitation per year.
Has the climate of Guam warmed?
Based on its largest cities, Guam warmed by +0.7 °C between 1940 and 2025.