Guam's Location

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Guam, called by its original settlers Guåhån, is the largest island in Micronesia (212 square miles) and is the southernmost island of the Mariana Islands in the Western Pacific Ocean. It is located along the edge of the Pacific plate in a zone called the Marianas Trench. Because of this location, Guam is subject to irregular earthquakes and tropical weather. In fact, the seasons barely affect the warm and humid climate – usually called tropical marine – that brings average temperatures of 86°F and about 86 inches of rain a year.

The location of Guam also affects the frequency and type of storms that come through. Though the months from December to June in Guam are considered to be very dry, the rest of the year is Guam’s rainy season and surrounds the two months that see the most typhoons on the island – October and November.



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