Mapusaga, in Western District, AS, is home to roughly 1,800 people in the Pacific/Pago Pago time zone at 14.3°S latitude.
In 2025, Mapusaga recorded an average annual temperature of 77°F. The hottest temperatures reached 85°F in December; the coolest were 70°F in October. Total precipitation for the year was 141 inches, with the wettest month being October.
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