Guam Sea Temperatures

We track the current and average sea water temperatures for 11 locations in Guam. Search the list below to find the place you're looking for.

The place with the highest sea temperature in Guam today is 29.57° C (85.22° F) in Dededo. The lowest is in Hagatna, where the temperature of the water is 29.55° C (85.18° F).