Weather in Guam

To summarize Guam climate it is essentially tropical marine; generally warm and humid, moderated by northeast trade winds, dry season extends from January to June, rainy season begins from July and continues through December and there is only a little temperature variation from one season to another. With pleasant year round weather in Guam, it is peak tourism season all 12 months of the year in Guam.


Guam has only two seasons, the dry and the rainy. The dry season, locally known as "fanumnangan," begins in December through June. At other time of the year it is rainy season, locally known as "fanuchanan,"


Average annual temperature of Guam: 81 degrees, generally, the range is from the low 70s to the middle 80s.

Annual rainfall in Guam: 80 to 110 inches

For month-by-month information about weather in Guam, refer to the following table:

Weather	Jan	Feb	Mar	Apr	May	Jun	Jul	Aug	Sep	Oct	Nov	Dec
Average in Fahrenheit	76	77	78	79	79	80	80	80	79	80	80	79
Average in Centigrade	24	25	26	26	26	27	27	27	26	27	27	26
Rainfall in inches	5.16	4.26	2.97	4.03	4.49	5.19	9.59	12.16	14.08	14.40	8.51	5.85
Relative humidity %	77	76	75	74	73	76	76	81	81	80	80	78
Daily Sunshine Hours	11.15	11.30	11.51	12.16	12.40	12.58	13.00	12.47	12.24	12.00	11.35	11.18

Log on to Travour.com for all the information you need to know about Weather in Guam, Guam Weather and Climate and best time to visit Guam. For more information on Guam and other Islands around the world, keep clicking through Travour.