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Weather & Climate in Longomapu, Tonga
Temperature, precipitation, air quality, natural hazards, and monthly weather data.
Longomapu has a warm climate with an average annual temperature of 78°F (26°C). Winters average 81°F in January while summers reach 75°F in July / relatively mild seasonal variation. The area gets 314 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 61.8 inches (wetter than the 38-inch national average). The city sits at an elevation of 207 feet.
Temperature
81°F Jan (27°C)
75°F Jul (24°C)
| Annual Average | 78.2°F |
| 45% above US avg | |
| January Average | 81°F (27°C) |
| July Average | 75°F (24°C) |
| Sunny Days | 314 days/yr |
Geography
| Elevation | 207 ft (63 m) |
| Coordinates | -18.6446°N, 174.0579°W |
| Timezone | Pacific/Tongatapu |
Precipitation & Snow
Air Quality
Earthquake History
1,483 earthquakes (M2.5+) recorded within 150 km since 1990. Strongest on record: M6.9.
| Jul 2, 2023 | 132 km NW of Neiafu, Tonga | M6.9 | 127 km | 229 km |
| May 26, 2024 | 70 km NW of Fangale’ounga, Tonga | M6.6 | 113 km | 137 km |
| Oct 1, 2024 | 125 km SE of Neiafu, Tonga | M6.6 | 132 km | 10 km |
| Apr 28, 2012 | 76 km W of Neiafu, Tonga | M6.6 | 68 km | 135 km |
| May 14, 2025 | 142 km W of Neiafu, Tonga | M6.4 | 135 km | 260 km |
| Sep 24, 2016 | 118 km WNW of Neiafu, Tonga | M6.4 | 111 km | 202 km |
| Jan 18, 2024 | 148 km NW of Fangale’ounga, Tonga | M6.4 | 147 km | 209 km |
| May 11, 2013 | 140 km WNW of Neiafu, Tonga | M6.4 | 134 km | 213 km |
| Jun 4, 2022 | 129 km NW of Neiafu, Tonga | M6.3 | 123 km | 237 km |
| May 20, 1990 | 135 km WNW of Neiafu, Tonga | M6.3 | 128 km | 232 km |
| Jan 8, 1991 | 81 km NE of Neiafu, Tonga | M6.2 | 86 km | 33 km |
| May 8, 2002 | 99 km NW of Neiafu, Tonga | M6.2 | 95 km | 131 km |
| Sep 4, 2010 | 141 km N of Neiafu, Tonga | M6.1 | 142 km | 69 km |
| Feb 24, 1994 | 139 km NNW of Neiafu, Tonga | M6.1 | 138 km | 124 km |
| Aug 25, 1995 | 150 km W of Neiafu, Tonga | M6.0 | 142 km | 225 km |
| May 27, 2023 | Tonga | M6.0 | 120 km | 222 km |
| Apr 14, 2004 | 107 km NW of Neiafu, Tonga | M6.0 | 103 km | 144 km |
| Jan 5, 1999 | 18 km NNW of Neiafu, Tonga | M6.0 | 16 km | 33 km |
| Jan 3, 1997 | 82 km NW of Pangai, Tonga | M6.0 | 104 km | 140 km |
| May 5, 2006 | 31 km W of Pangai, Tonga | M5.9 | 146 km | 35 km |
Source: USGS Earthquake Catalog (M2.5+, 1990–2025). Sorted by magnitude.
Hurricane History
5 hurricanes (Category 1+) recorded within 500 km since 1980. Strongest on record: Category 4.
| Year | Name | Category | Max Wind | Closest |
| 2014 | Ian | Category 4 | 127 mph | 70 km |
| 2006 | Vaianu | Category 1 | 75 mph | 297 km |
| 2002 | Waka | Category 3 | — | 18 km |
| 1999 | Cora | Category 2 | 92 mph | 230 km |
| 1998 | Ron | Category 4 | 132 mph | 109 km |
Source: NOAA IBTrACS (Category 1+, 1980–2026).
Tsunami History
1 tsunami recorded within 500 km. Highest wave on record: 1.3 m (4 ft).
| Year | Location | Cause | Max Wave | Deaths | Distance |
| 1865 | TONGA ISLANDS | Earthquake | 1.3 m | — | 112 km |
Source: NOAA/NCEI Historical Tsunami Database.
Nearby Volcanoes
1 volcano within 200 km. Closest: Tofua (163 km).
| Name | Type | Elevation | Last Eruption | Distance |
| Tofua | Caldera | 515 m (1,690 ft) | 2014 | 163 km |
Source: Smithsonian Institution Global Volcanism Program (GVP).
Monthly Weather
| Month | Avg Temperature | Precipitation | Summary |
|---|---|---|---|
| January | 81°F (27°C) | 9.3 in | Warmest |
| February | 81°F (27°C) | 8.8 in | |
| March | 80°F (27°C) | 10.7 in | Wettest |
| April | 79°F (26°C) | 8.6 in | |
| May | 77°F (25°C) | 6.4 in | |
| June | 76°F (24°C) | 4.5 in | |
| July | 75°F (24°C) | 3.9 in | Driest |
| August | 74°F (23°C) | 4.7 in | Coldest |
| September | 75°F (24°C) | 5.1 in | |
| October | 76°F (24°C) | 5.7 in | |
| November | 78°F (25°C) | 6.1 in | |
| December | 79°F (26°C) | 8.1 in |
Longomapu has a seasonal temperature swing of 7°F / from 74°F in August to 81°F in January. Total annual precipitation is 81.9 inches, with March being the wettest month (10.7") and July the driest (3.9").