All Countries
Weather & Climate in Lạng Sơn, Vietnam
Temperature, precipitation, air quality, natural hazards, and monthly weather data.
Lạng Sơn has a warm climate with an average annual temperature of 71°F (22°C). Winters average 57°F in January while summers reach 81°F in July. The area gets 242 sunny days per year, above the national average. Annual precipitation totals 51.9 inches (wetter than the 38-inch national average). The city sits at an elevation of 869 feet.
Temperature
57°F Jan (14°C)
81°F Jul (27°C)
| Annual Average | 70.8°F |
| 31% above US avg | |
| January Average | 57°F (14°C) |
| July Average | 81°F (27°C) |
| Sunny Days | 242 days/yr |
Geography
| Elevation | 869 ft (265 m) |
| Area | 30.5 sq mi (79.0 km²) |
| Population Density | 6,561/sq mi |
| Coordinates | 21.8526°N, 106.7610°W |
| Timezone | Asia/Bangkok |
Precipitation & Snow
Air Quality
Earthquake History
2 earthquakes (M2.5+) recorded within 150 km since 1990. Strongest on record: M4.6.
| Sep 23, 1994 | 49 km W of Móng Cái, Vietnam | M4.6 | 83 km | 33 km |
| Oct 3, 2017 | 48 km N of Cao B?ng, Vietnam | M4.2 | 148 km | 12 km |
Source: USGS Earthquake Catalog (M2.5+, 1990–2025). Sorted by magnitude.
Hurricane History
27 hurricanes (Category 1+) recorded within 500 km since 1980. Strongest on record: Category 4.
| Year | Name | Category | Max Wind | Closest |
| 2025 | Matmo | Category 1 | — | 180 km |
| 2025 | Wutip | Category 1 | — | 298 km |
| 2024 | Yagi | Category 3 | 104 mph | 99 km |
| 2023 | Talim | Category 1 | — | 265 km |
| 2016 | Mirinae | Category 1 | 52 mph | 193 km |
| 2015 | Mujigae | Category 1 | 81 mph | 239 km |
| 2014 | Rammasun | Category 4 | 81 mph | 60 km |
| 2014 | Kalmaegi | Category 1 | 75 mph | 32 km |
| 2013 | Haiyan | Category 1 | 75 mph | 110 km |
| 2012 | Son-tinh | Category 2 | 81 mph | 95 km |
| 2008 | Hagupit | Category 1 | 69 mph | 200 km |
| 2003 | Krovanh | Category 2 | 75 mph | 42 km |
| 2003 | Imbudo | Category 1 | — | 291 km |
| 2001 | Durian | Category 1 | 52 mph | 211 km |
| 1997 | Zita | Category 1 | 58 mph | 73 km |
| 1996 | Sally | Category 2 | 69 mph | 76 km |
| 1996 | Frankie | Category 2 | 58 mph | 179 km |
| 1996 | Willie | Category 1 | 52 mph | 289 km |
| 1996 | Niki | Category 1 | 69 mph | 233 km |
| 1995 | Ted | Category 1 | 52 mph | 222 km |
Source: NOAA IBTrACS (Category 1+, 1980–2026).
Monthly Weather
| Month | Avg Temperature | Precipitation | Summary |
|---|---|---|---|
| January | 57°F (14°C) | 0.8 in | Coldest, Driest |
| February | 60°F (15°C) | 1.8 in | |
| March | 65°F (18°C) | 1.4 in | |
| April | 72°F (22°C) | 3.2 in | |
| May | 78°F (25°C) | 5.9 in | |
| June | 81°F (27°C) | 7.4 in | |
| July | 81°F (27°C) | 9.5 in | Warmest |
| August | 80°F (27°C) | 10.3 in | Wettest |
| September | 78°F (26°C) | 6.6 in | |
| October | 73°F (23°C) | 3.2 in | |
| November | 66°F (19°C) | 1.1 in | |
| December | 60°F (15°C) | 0.9 in |
Lạng Sơn has a seasonal temperature swing of 25°F / from 57°F in January to 81°F in July. Total annual precipitation is 51.9 inches, with August being the wettest month (10.3") and January the driest (0.8").