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Weather & Climate in Fagatogo, American Samoa

Temperature, precipitation, air quality, natural hazards, and monthly weather data.

Fagatogo has a warm climate with an average annual temperature of 81°F (27°C). Winters average 81°F in January while summers reach 81°F in July / relatively mild seasonal variation. The area gets 331 sunny days per year, well above the U.S. average of 205 / making it one of the sunnier locations in the country. Annual precipitation totals 116.7 inches (wetter than the 38-inch national average). The city sits at an elevation of 440 feet.

Temperature

81°F Jan (27°C) 81°F Jul (27°C)
Annual Average81.0°F
50% above US avg
January Average81°F (27°C)
July Average81°F (27°C)
Sunny Days331 days/yr

Geography

Elevation440 ft (134 m)
Area0.8 sq mi (2.1 km²)
Population Density2,251/sq mi
Coordinates-14.2825°N, 170.6900°W
TimezonePacific/Pago_Pago

Precipitation & Snow

Annual Rainfall 116.7"
207% above US avg
Snowfall 0.0"
Wettest Month (Jan) 16.73"
Driest Month (Jul) 6.54"

Air Quality

Earthquake History

332 earthquakes (M2.5+) recorded within 150 km since 1990. Strongest on record: M5.1.

Oct 28, 1994 110 km S of Matavai, Samoa M5.1 139 km 33 km
Jan 25, 1995 16 km ESE of Ta`?, American Samoa M5.0 141 km 33 km
Apr 27, 2024 105 km S of Matavai, Samoa M4.9 144 km 10 km
Sep 17, 2024 93 km S of Matavai, Samoa M4.9 132 km 10 km
Oct 3, 1995 26 km ENE of Samamea, Samoa M4.9 80 km 38 km
Jan 13, 1995 48 km NNE of Ta`?, American Samoa M4.8 150 km 33 km
Jul 22, 2016 72 km S of Matavai, Samoa M4.8 108 km 10 km
Jan 20, 1995 13 km W of Ofu, American Samoa M4.7 97 km 33 km
May 9, 2024 8 km SE of Samamea, Samoa M4.7 91 km 10 km
Jan 10, 1995 44 km N of Ta`?, American Samoa M4.6 143 km 33 km
Jun 24, 2004 86 km S of Vailoatai, American Samoa M4.6 97 km 10 km
Sep 27, 2024 39 km NNE of Lufilufi, Samoa M4.6 111 km 10 km
Apr 26, 2024 97 km S of Matavai, Samoa M4.6 129 km 10 km
Apr 15, 2016 117 km S of Matavai, Samoa M4.5 145 km 25 km
Sep 5, 2022 21 km NNE of Ta M4.5 135 km 10 km
Jan 9, 1995 41 km NNE of Ta`?, American Samoa M4.4 149 km 33 km
Jan 13, 1995 66 km N of Ofu, American Samoa M4.4 137 km 33 km
Jan 16, 1995 49 km N of Ta`?, American Samoa M4.3 147 km 33 km
Nov 6, 1995 106 km SSW of Vailoatai, American Samoa M4.3 119 km 33 km
Oct 14, 2016 117 km SSW of Vailoatai, American Samoa M4.2 131 km 10 km
Source: USGS Earthquake Catalog (M2.5+, 1990–2025). Sorted by magnitude.

Hurricane History

4 hurricanes (Category 1+) recorded within 500 km since 1980. Strongest on record: Category 5.

Year Name Category Max Wind Closest
2016 Amos Category 1 92 mph 221 km
2005 Olaf Category 5 132 mph 115 km
1992 Val Category 4 104 mph 10 km
1987 Tusi Category 3 92 mph 116 km
Source: NOAA IBTrACS (Category 1+, 1980–2026).

Nearby Volcanoes

5 volcanoes within 200 km. Closest: Tutuila (2 km).

Name Type Elevation Last Eruption Distance
Tutuila Tuff cone(s) 653 m (2,142 ft) 440 2 km
Ofu-Olosega Shield(s) 639 m (2,096 ft) 1866 116 km
Upolu Shield 1,100 m (3,609 ft) Unknown 118 km
Ta'u Shield 931 m (3,054 ft) Unknown 133 km
Vailulu'u Submarine -592 m (-1,942 ft) 2003 176 km
Source: Smithsonian Institution Global Volcanism Program (GVP).

Monthly Weather

Month Avg Temperature Precipitation Summary
January 81°F (27°C) 16.7 in Wettest
February 80°F (27°C) 14.0 in
March 80°F (27°C) 13.9 in
April 80°F (27°C) 12.3 in
May 79°F (26°C) 11.4 in
June 79°F (26°C) 6.9 in
July 81°F (27°C) 6.5 in Warmest, Driest
August 78°F (25°C) 7.5 in Coldest
September 78°F (26°C) 7.8 in
October 79°F (26°C) 12.6 in
November 79°F (26°C) 11.2 in
December 80°F (27°C) 15.1 in

Fagatogo has a seasonal temperature swing of 3°F / from 78°F in August to 81°F in July. Total annual precipitation is 136.1 inches, with January being the wettest month (16.7") and July the driest (6.5").

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