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Weather & Climate in Gaiwei, China
Temperature, precipitation, air quality, natural hazards, and monthly weather data.
Gaiwei enjoys a temperate climate with an average annual temperature of 64°F (18°C). Winters average 48°F in January while summers reach 78°F in July. The area gets 271 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 71.9 inches (wetter than the 38-inch national average). The city sits at an elevation of 118 feet.
Temperature
48°F Jan (9°C)
78°F Jul (25°C)
| Annual Average | 63.6°F |
| 18% above US avg | |
| January Average | 48°F (9°C) |
| July Average | 78°F (25°C) |
| Sunny Days | 271 days/yr |
Geography
| Elevation | 118 ft (36 m) |
| Area | 1,594.9 sq mi (4,130.8 km²) |
| Population Density | 0/sq mi |
| Coordinates | 25.3518°N, 118.8065°W |
| Timezone | Asia/Shanghai |
Precipitation & Snow
Air Quality
Earthquake History
13 earthquakes (M2.5+) recorded within 150 km since 1990. Strongest on record: M4.9.
| Feb 25, 1995 | 27 km S of Kerencun, China | M4.9 | 114 km | 10 km |
| Oct 28, 2013 | 75 km N of Magong, Taiwan | M4.6 | 148 km | 18 km |
| Mar 6, 2008 | 6 km ENE of Meipu, China | M4.5 | 99 km | 35 km |
| Feb 18, 1992 | 70 km SE of Jiangkou, China | M4.5 | 95 km | 33 km |
| Mar 6, 2008 | 15 km SW of Shuikou, China | M4.1 | 103 km | 35 km |
| Aug 22, 2013 | 34 km WNW of Putian, China | M4.1 | 28 km | 15 km |
| Sep 3, 2013 | 31 km WNW of Putian, China | M4.1 | 26 km | 13 km |
| Oct 29, 2013 | 31 km WNW of Putian, China | M4.1 | 26 km | 14 km |
| Aug 5, 1999 | 54 km ESE of Dazuocun, China | M4.1 | 98 km | 10 km |
| Mar 2, 1992 | 10 km SSE of Zhenhaicun, China | M3.9 | 149 km | 28 km |
| Jul 4, 2008 | 39 km SW of Huangtian, China | M3.5 | 99 km | 10 km |
| Apr 21, 1996 | 10 km WNW of Luoqiao, China | M3.5 | 129 km | 33 km |
| Oct 15, 1997 | 36 km ENE of Jingfeng, China | M3.3 | 53 km | 33 km |
Source: USGS Earthquake Catalog (M2.5+, 1990–2025). Sorted by magnitude.
Hurricane History
63 hurricanes (Category 1+) recorded within 500 km since 1980. Strongest on record: Category 4.
| Year | Name | Category | Max Wind | Closest |
| 2025 | Danas | Category 2 | — | 243 km |
| 2025 | Podul | Category 1 | — | 217 km |
| 2024 | Kong-rey | Category 3 | 86 mph | 153 km |
| 2024 | Gaemi | Category 3 | 75 mph | 123 km |
| 2023 | Haikui | Category 3 | 75 mph | 249 km |
| 2023 | Doksuri | Category 2 | 92 mph | 54 km |
| 2020 | Mekkhala | Category 1 | 58 mph | 170 km |
| 2018 | Maria | Category 2 | 98 mph | 120 km |
| 2017 | Nesat | Category 1 | 81 mph | 217 km |
| 2016 | Meranti | Category 4 | 98 mph | 102 km |
| 2016 | Megi | Category 3 | 92 mph | 161 km |
| 2016 | Nepartak | Category 1 | 75 mph | 268 km |
| 2015 | Dujuan | Category 3 | 86 mph | 41 km |
| 2015 | Soudelor | Category 3 | 92 mph | 86 km |
| 2014 | Matmo | Category 2 | 69 mph | 85 km |
| 2013 | Fitow | Category 1 | — | 286 km |
| 2013 | Soulik | Category 1 | 86 mph | 134 km |
| 2013 | Trami | Category 1 | 69 mph | 89 km |
| 2010 | Fanapi | Category 3 | 92 mph | 204 km |
| 2010 | Megi | Category 1 | 69 mph | 232 km |
Source: NOAA IBTrACS (Category 1+, 1980–2026).
Tsunami History
2 tsunamis recorded within 500 km.
| Year | Location | Cause | Max Wave | Deaths | Distance |
| 1917 | SOUTH CHINA SEA | Earthquake | — | — | 122 km |
| 1604 | SOUTH CHINA SEA | Earthquake | — | — | 80 km |
Source: NOAA/NCEI Historical Tsunami Database.