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Weather & Climate in Thanh Sơn, Vietnam
Temperature, precipitation, air quality, natural hazards, and monthly weather data.
Thanh Sơn has a warm climate with an average annual temperature of 75°F (24°C). Winters average 61°F in January while summers reach 84°F in July. The area gets 233 sunny days per year, above the national average. Annual precipitation totals 64.6 inches (wetter than the 38-inch national average). The city sits at an elevation of 98 feet.
Temperature
61°F Jan (16°C)
84°F Jul (29°C)
| Annual Average | 74.8°F |
| 39% above US avg | |
| January Average | 61°F (16°C) |
| July Average | 84°F (29°C) |
| Sunny Days | 233 days/yr |
Geography
| Elevation | 98 ft (30 m) |
| Area | 2.4 sq mi (6.2 km²) |
| Population Density | 0/sq mi |
| Coordinates | 21.1987°N, 105.1789°W |
| Timezone | Asia/Bangkok |
Precipitation & Snow
Air Quality
Earthquake History
7 earthquakes (M2.5+) recorded within 150 km since 1990. Strongest on record: M4.9.
| Jul 27, 2020 | ~120km W of Hanoi, Vietnam | M4.9 | 69 km | 10 km |
| Jul 19, 2014 | 19 km NNE of S?n La, Vietnam | M4.6 | 129 km | 17 km |
| Oct 6, 1991 | 33 km E of S?n La, Vietnam | M4.5 | 100 km | 10 km |
| Mar 25, 2024 | 27 km S of Xuân Mai, Vietnam | M4.2 | 72 km | 10 km |
| Oct 23, 1993 | 20 km SSW of Yên Bái, Vietnam | M4.1 | 50 km | 33 km |
| Oct 11, 1991 | 11 km N of Tuyên Quang, Vietnam | M4.1 | 81 km | 10 km |
| Sep 19, 2010 | 71 km SSW of Hòa Bình, Vietnam | M4.0 | 108 km | 10 km |
Source: USGS Earthquake Catalog (M2.5+, 1990–2025). Sorted by magnitude.
Hurricane History
17 hurricanes (Category 1+) recorded within 500 km since 1980. Strongest on record: Category 3.
| Year | Name | Category | Max Wind | Closest |
| 2025 | Kajiki | Category 2 | — | 294 km |
| 2024 | Yagi | Category 3 | 104 mph | 58 km |
| 2016 | Mirinae | Category 1 | 52 mph | 154 km |
| 2014 | Rammasun | Category 2 | 46 mph | 221 km |
| 2014 | Kalmaegi | Category 1 | 63 mph | 148 km |
| 2013 | Haiyan | Category 1 | 75 mph | 221 km |
| 2012 | Son-tinh | Category 3 | 81 mph | 158 km |
| 2003 | Krovanh | Category 2 | 63 mph | 181 km |
| 1997 | Zita | Category 1 | 52 mph | 96 km |
| 1996 | Frankie | Category 2 | 58 mph | 125 km |
| 1996 | Sally | Category 1 | 63 mph | 252 km |
| 1996 | Niki | Category 1 | 69 mph | 140 km |
| 1995 | Lois | Category 1 | 58 mph | 225 km |
| 1993 | Lewis | Category 1 | 58 mph | 297 km |
| 1989 | Brian | Category 1 | 63 mph | 296 km |
| 1982 | Nancy | Category 1 | 81 mph | 248 km |
| 1980 | Ruth | Category 1 | 63 mph | 214 km |
Source: NOAA IBTrACS (Category 1+, 1980–2026).
Monthly Weather
| Month | Avg Temperature | Precipitation | Summary |
|---|---|---|---|
| January | 61°F (16°C) | 0.4 in | Coldest, Driest |
| February | 62°F (17°C) | 1.1 in | |
| March | 66°F (19°C) | 0.9 in | |
| April | 74°F (23°C) | 2.8 in | |
| May | 80°F (27°C) | 7.3 in | |
| June | 83°F (28°C) | 7.2 in | |
| July | 84°F (29°C) | 10.5 in | Warmest |
| August | 82°F (28°C) | 11.2 in | |
| September | 80°F (26°C) | 11.6 in | Wettest |
| October | 75°F (24°C) | 4.8 in | |
| November | 69°F (21°C) | 1.3 in | |
| December | 64°F (18°C) | 0.7 in |
Thanh Sơn has a seasonal temperature swing of 23°F / from 61°F in January to 84°F in July. Total annual precipitation is 59.8 inches, with September being the wettest month (11.6") and January the driest (0.4").