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Weather & Climate in Longnan, China
Temperature, precipitation, air quality, natural hazards, and monthly weather data.
Longnan enjoys a temperate climate with an average annual temperature of 68°F (20°C). Winters average 48°F in January while summers reach 84°F in July. The area gets 254 sunny days per year, above the national average. Annual precipitation totals 64.9 inches (wetter than the 38-inch national average). The city sits at an elevation of 627 feet.
Temperature
48°F Jan (9°C)
84°F Jul (29°C)
| Annual Average | 68.0°F |
| 26% above US avg | |
| January Average | 48°F (9°C) |
| July Average | 84°F (29°C) |
| Sunny Days | 254 days/yr |
Geography
| Elevation | 627 ft (191 m) |
| Area | 51.3 sq mi (133.0 km²) |
| Population Density | 0/sq mi |
| Coordinates | 24.9048°N, 114.7974°W |
| Timezone | Asia/Shanghai |
Precipitation & Snow
Air Quality
Earthquake History
9 earthquakes (M2.5+) recorded within 150 km since 1990. Strongest on record: M4.6.
| Aug 4, 1992 | 55 km NW of Hepo, China | M4.6 | 140 km | 10 km |
| Feb 22, 2013 | 27 km NW of Heyuan, China | M4.5 | 119 km | 9 km |
| Feb 15, 2012 | 37 km NW of Heyuan, China | M4.4 | 108 km | 5 km |
| Aug 19, 1999 | 30 km NW of Heyuan, China | M4.4 | 116 km | 10 km |
| Aug 31, 2012 | 21 km WSW of Heyuan, China | M4.3 | 139 km | 10 km |
| Sep 21, 1991 | 23 km WNW of Heyuan, China | M4.2 | 121 km | 33 km |
| Mar 7, 2023 | 24 km NW of Heyuan, China | M4.2 | 119 km | 10 km |
| Feb 11, 2023 | 10 km WNW of Heyuan, China | M4.2 | 129 km | 10 km |
| Mar 24, 1999 | 33 km ENE of Heyuan, China | M4.1 | 121 km | 10 km |
Source: USGS Earthquake Catalog (M2.5+, 1990–2025). Sorted by magnitude.
Hurricane History
21 hurricanes (Category 1+) recorded within 500 km since 1980. Strongest on record: Category 3.
| Year | Name | Category | Max Wind | Closest |
| 2016 | Haima | Category 1 | — | 272 km |
| 2016 | Meranti | Category 1 | 63 mph | 284 km |
| 2016 | Nida | Category 1 | 58 mph | 263 km |
| 2015 | Linfa | Category 1 | 58 mph | 280 km |
| 2013 | Usagi | Category 3 | 98 mph | 213 km |
| 2006 | Chanchu | Category 2 | 86 mph | 281 km |
| 2003 | Dujuan | Category 3 | 81 mph | 257 km |
| 2001 | Utor | Category 1 | 52 mph | 234 km |
| 2000 | Bilis | Category 1 | — | 197 km |
| 1999 | Maggie | Category 2 | 52 mph | 245 km |
| 1999 | Sam | Category 1 | 58 mph | 269 km |
| 1997 | Victor | Category 1 | 69 mph | 298 km |
| 1995 | Kent | Category 3 | 92 mph | 216 km |
| 1995 | Helen | Category 1 | 52 mph | 268 km |
| 1993 | Abe | Category 3 | 98 mph | 162 km |
| 1991 | Amy | Category 3 | 92 mph | 186 km |
| 1991 | Nat | Category 1 | 75 mph | 298 km |
| 1990 | Percy | Category 1 | 81 mph | 286 km |
| 1988 | Warren | Category 1 | 75 mph | 298 km |
| 1985 | Hal | Category 1 | 69 mph | 238 km |
Source: NOAA IBTrACS (Category 1+, 1980–2026).
Monthly Weather
| Month | Avg Temperature | Precipitation | Summary |
|---|---|---|---|
| January | 48°F (9°C) | 2.0 in | Coldest |
| February | 53°F (12°C) | 3.8 in | |
| March | 59°F (15°C) | 6.1 in | |
| April | 68°F (20°C) | 8.4 in | |
| May | 75°F (24°C) | 10.6 in | Wettest |
| June | 80°F (27°C) | 9.8 in | |
| July | 84°F (29°C) | 5.5 in | Warmest |
| August | 83°F (28°C) | 6.6 in | |
| September | 79°F (26°C) | 4.0 in | |
| October | 71°F (22°C) | 2.5 in | |
| November | 62°F (17°C) | 1.7 in | |
| December | 53°F (12°C) | 1.4 in | Driest |
Longnan has a seasonal temperature swing of 36°F / from 48°F in January to 84°F in July. Total annual precipitation is 62.4 inches, with May being the wettest month (10.6") and December the driest (1.4").