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Weather & Climate in Thị Trấn Lam Sơn, Vietnam
Temperature, precipitation, air quality, natural hazards, and monthly weather data.
Thị Trấn Lam Sơn has a warm climate with an average annual temperature of 75°F (24°C). Winters average 63°F in January while summers reach 84°F in July. The area gets 223 sunny days per year, above the national average. Annual precipitation totals 63.5 inches (wetter than the 38-inch national average). The city sits at an elevation of 72 feet.
Temperature
63°F Jan (17°C)
84°F Jul (29°C)
| Annual Average | 75.1°F |
| 39% above US avg | |
| January Average | 63°F (17°C) |
| July Average | 84°F (29°C) |
| Sunny Days | 223 days/yr |
Geography
| Elevation | 72 ft (22 m) |
| Area | 12.0 sq mi (31.1 km²) |
| Population Density | 2,762/sq mi |
| Coordinates | 19.9047°N, 105.4056°W |
| Timezone | Asia/Ho_Chi_Minh |
Precipitation & Snow
Air Quality
Earthquake History
3 earthquakes (M2.5+) recorded within 150 km since 1990. Strongest on record: M4.9.
| Jul 27, 2020 | ~120km W of Hanoi, Vietnam | M4.9 | 134 km | 10 km |
| Mar 25, 2024 | 27 km S of Xuân Mai, Vietnam | M4.2 | 84 km | 10 km |
| Sep 19, 2010 | 71 km SSW of Hòa Bình, Vietnam | M4.0 | 53 km | 10 km |
Source: USGS Earthquake Catalog (M2.5+, 1990–2025). Sorted by magnitude.
Hurricane History
28 hurricanes (Category 1+) recorded within 500 km since 1980. Strongest on record: Category 3.
| Year | Name | Category | Max Wind | Closest |
| 2025 | Kajiki | Category 2 | — | 148 km |
| 2025 | Bualoi | Category 1 | — | 207 km |
| 2024 | Yagi | Category 3 | 104 mph | 126 km |
| 2017 | Doksuri | Category 2 | 92 mph | 223 km |
| 2016 | Mirinae | Category 1 | 52 mph | 89 km |
| 2014 | Kalmaegi | Category 1 | 75 mph | 230 km |
| 2013 | Wutip | Category 2 | 75 mph | 229 km |
| 2013 | Haiyan | Category 1 | 75 mph | 215 km |
| 2012 | Son-tinh | Category 3 | 92 mph | 132 km |
| 2010 | Mindulle | Category 1 | 52 mph | 283 km |
| 2007 | Lekima | Category 1 | 63 mph | 251 km |
| 2003 | Krovanh | Category 2 | 63 mph | 236 km |
| 1997 | Zita | Category 1 | 52 mph | 161 km |
| 1996 | Frankie | Category 2 | 58 mph | 68 km |
| 1996 | Willie | Category 1 | 52 mph | 210 km |
| 1996 | Niki | Category 1 | 75 mph | 23 km |
| 1995 | Lois | Category 1 | 58 mph | 79 km |
| 1993 | Lewis | Category 1 | 63 mph | 178 km |
| 1991 | Fred | Category 2 | 75 mph | 232 km |
| 1990 | Becky | Category 1 | 69 mph | 261 km |
Source: NOAA IBTrACS (Category 1+, 1980–2026).
Tsunami History
1 tsunami recorded within 500 km. Highest wave on record: 3.0 m (10 ft).
| Year | Location | Cause | Max Wave | Deaths | Distance |
| 1899 | NORTH CENTRAL VIETNAM | Unknown | 3.0 m | — | 118 km |
Source: NOAA/NCEI Historical Tsunami Database.
Monthly Weather
| Month | Avg Temperature | Precipitation | Summary |
|---|---|---|---|
| January | 63°F (17°C) | 0.5 in | Coldest, Driest |
| February | 65°F (18°C) | 1.2 in | |
| March | 69°F (20°C) | 1.3 in | |
| April | 76°F (24°C) | 2.6 in | |
| May | 82°F (28°C) | 7.7 in | |
| June | 85°F (29°C) | 6.7 in | Warmest |
| July | 84°F (29°C) | 10.3 in | |
| August | 83°F (28°C) | 10.3 in | |
| September | 81°F (27°C) | 14.1 in | Wettest |
| October | 77°F (25°C) | 5.4 in | |
| November | 71°F (22°C) | 2.4 in | |
| December | 66°F (19°C) | 0.9 in |
Thị Trấn Lam Sơn has a seasonal temperature swing of 22°F / from 63°F in January to 85°F in June. Total annual precipitation is 63.5 inches, with September being the wettest month (14.1") and January the driest (0.5").