Because of Guam's geographical location, a generally favorable tropical climate prevails throughout the year.  The island enjoys only two major seasons: the "dry season" which begins in the cool month of December through the mid summer month of June.  The "wet or rainy season" follows thereafter.  Temperature throughout the year generally fluctuates between the 70s and 90s.  The summer months of May and June are the warmest while December is the coolest.  Guam rainfall averages 100 inches per year.

The current weather on Guam: