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Weather & Climate in Longmen, China
Temperature, precipitation, air quality, natural hazards, and monthly weather data.
Longmen enjoys a temperate climate with an average annual temperature of 65°F (18°C). Winters average 51°F in January while summers reach 78°F in July. The area gets 242 sunny days per year, above the national average. Annual precipitation totals 52.0 inches (wetter than the 38-inch national average). The city sits at an elevation of 387 feet.
Temperature
51°F Jan (10°C)
78°F Jul (26°C)
| Annual Average | 65.1°F |
| 21% above US avg | |
| January Average | 51°F (10°C) |
| July Average | 78°F (26°C) |
| Sunny Days | 242 days/yr |
Geography
| Elevation | 387 ft (118 m) |
| Area | 66.5 sq mi (172.2 km²) |
| Population Density | 81/sq mi |
| Coordinates | 24.9597°N, 118.0889°W |
| Timezone | Asia/Shanghai |
Precipitation & Snow
Air Quality
Earthquake History
10 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 | 92 km | 10 km |
| Nov 26, 1992 | 110 km SW of Sanming, China | M4.1 | 133 km | 33 km |
| Aug 22, 2013 | 34 km WNW of Putian, China | M4.1 | 95 km | 15 km |
| Sep 3, 2013 | 31 km WNW of Putian, China | M4.1 | 94 km | 13 km |
| Oct 29, 2013 | 31 km WNW of Putian, China | M4.1 | 95 km | 14 km |
| Aug 5, 1999 | 54 km ESE of Dazuocun, China | M4.1 | 142 km | 10 km |
| Mar 2, 1992 | 10 km SSE of Zhenhaicun, China | M3.9 | 88 km | 28 km |
| Jun 3, 1991 | 64 km SE of Jincheng, Taiwan | M3.9 | 127 km | 10 km |
| Jul 4, 2008 | 39 km SW of Huangtian, China | M3.5 | 136 km | 10 km |
| Oct 15, 1997 | 36 km ENE of Jingfeng, China | M3.3 | 122 km | 33 km |
Source: USGS Earthquake Catalog (M2.5+, 1990–2025). Sorted by magnitude.
Hurricane History
61 hurricanes (Category 1+) recorded within 500 km since 1980. Strongest on record: Category 4.
| Year | Name | Category | Max Wind | Closest |
| 2025 | Danas | Category 2 | — | 267 km |
| 2025 | Podul | Category 1 | — | 188 km |
| 2024 | Kong-rey | Category 2 | 63 mph | 200 km |
| 2024 | Gaemi | Category 1 | 69 mph | 193 km |
| 2023 | Haikui | Category 2 | 63 mph | 243 km |
| 2023 | Doksuri | Category 2 | 92 mph | 52 km |
| 2020 | Mekkhala | Category 1 | 58 mph | 93 km |
| 2018 | Maria | Category 2 | 98 mph | 183 km |
| 2017 | Nesat | Category 1 | 81 mph | 284 km |
| 2016 | Meranti | Category 4 | 104 mph | 20 km |
| 2016 | Nepartak | Category 3 | 86 mph | 276 km |
| 2016 | Megi | Category 2 | 86 mph | 197 km |
| 2015 | Dujuan | Category 2 | 75 mph | 49 km |
| 2015 | Soudelor | Category 2 | 81 mph | 133 km |
| 2015 | Linfa | Category 1 | 58 mph | 274 km |
| 2014 | Matmo | Category 1 | 69 mph | 153 km |
| 2013 | Trami | Category 1 | 69 mph | 173 km |
| 2013 | Soulik | Category 1 | 69 mph | 219 km |
| 2012 | Tembin | Category 3 | 75 mph | 275 km |
| 2010 | Megi | Category 2 | 69 mph | 174 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 | — | — | 55 km |
| 1604 | SOUTH CHINA SEA | Earthquake | — | — | 142 km |
Source: NOAA/NCEI Historical Tsunami Database.
Monthly Weather
| Month | Avg Temperature | Precipitation | Summary |
|---|---|---|---|
| January | 51°F (10°C) | 1.5 in | Coldest |
| February | 51°F (11°C) | 2.8 in | |
| March | 56°F (13°C) | 4.6 in | |
| April | 63°F (17°C) | 6.3 in | |
| May | 70°F (21°C) | 7.5 in | |
| June | 75°F (24°C) | 8.5 in | Wettest |
| July | 78°F (26°C) | 5.8 in | Warmest |
| August | 78°F (26°C) | 6.7 in | |
| September | 75°F (24°C) | 4.5 in | |
| October | 69°F (20°C) | 1.5 in | |
| November | 61°F (16°C) | 1.4 in | |
| December | 54°F (12°C) | 1.1 in | Driest |
Longmen has a seasonal temperature swing of 28°F / from 51°F in January to 78°F in July. Total annual precipitation is 52.0 inches, with June being the wettest month (8.5") and December the driest (1.1").