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Weather in American Samoa

American Samoa is warm, humid and rainy year-round. Located south of the equator, its seasons are the opposite of the United States and the rest of the northern hemisphere. The park has a long wet summer (October – May) and a slightly cooler and drier season (June – September). Rain showers are frequent and last anywhere from a few minutes to several days. Average annual rainfall is 125 inches at the airport at Pago Pago and up to 200 inches elsewhere on the islands.

Averages and Records at American Samoa

MonthAvg HighAvg LowRecord HighRecord LowAvg Precip
January8776956714.4
February8776996512.6
March8777956311.6
April8776956811
May8676936510.6
June857695615.9
July847591626.5
August847592606.3
September857692627.7
October8576945910.4
November8677956011.2
December8776946514.6

All temperatures are reported in Fahrenheit. All precipitation is reported in inches.

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