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Weather & Climate in Thị Trấn Tam Sơn, Vietnam
Temperature, precipitation, air quality, natural hazards, and monthly weather data.
Thị Trấn Tam Sơn enjoys a temperate climate with an average annual temperature of 65°F (18°C). Winters average 47°F in January while summers reach 75°F in July. The area gets 271 sunny days per year, well above the U.S. average of 205 / making it one of the sunnier locations in the country. Annual precipitation totals 69.6 inches (wetter than the 38-inch national average). The city sits at an elevation of 2,867 feet.
Temperature
47°F Jan (9°C)
75°F Jul (24°C)
| Annual Average | 65.0°F |
| 20% above US avg | |
| January Average | 47°F (9°C) |
| July Average | 75°F (24°C) |
| Sunny Days | 271 days/yr |
Geography
| Elevation | 2,867 ft (874 m) |
| Area | 52.3 sq mi (135.3 km²) |
| Population Density | 0/sq mi |
| Coordinates | 23.0674°N, 104.9893°W |
| Timezone | Asia/Bangkok |
Precipitation & Snow
Air Quality
Earthquake History
11 earthquakes (M2.5+) recorded within 150 km since 1990. Strongest on record: M4.8.
| Aug 13, 2005 | 32 km NNW of Wenshan City, China | M4.8 | 110 km | 10 km |
| Aug 15, 2017 | 60 km N of Cao B?ng, Vietnam | M4.5 | 127 km | 10 km |
| Aug 7, 1992 | 40 km SW of Wenshan City, China | M4.3 | 110 km | 10 km |
| Aug 22, 2004 | 62 km ESE of Zhongshu, China | M4.3 | 148 km | 11 km |
| Jul 19, 2005 | 23 km NNW of Wenshan City, China | M4.2 | 103 km | 10 km |
| Jul 25, 1995 | 72 km NW of Cao B?ng, Vietnam | M4.2 | 89 km | 10 km |
| Oct 3, 2017 | 48 km N of Cao B?ng, Vietnam | M4.2 | 131 km | 12 km |
| May 21, 2011 | 51 km NW of Lào Cai, Vietnam | M4.1 | 143 km | 10 km |
| Oct 11, 1991 | 11 km N of Tuyên Quang, Vietnam | M4.1 | 129 km | 10 km |
| Aug 23, 2004 | 61 km ESE of Zhongshu, China | M4.0 | 147 km | 10 km |
| Apr 22, 1997 | 33 km NNE of Hà Giang, Vietnam | M3.6 | 9 km | 33 km |
Source: USGS Earthquake Catalog (M2.5+, 1990–2025). Sorted by magnitude.
Hurricane History
7 hurricanes (Category 1+) recorded within 500 km since 1980. Strongest on record: Category 3.
| Year | Name | Category | Max Wind | Closest |
| 2024 | Yagi | Category 3 | 104 mph | 241 km |
| 2014 | Rammasun | Category 2 | 46 mph | 196 km |
| 2014 | Kalmaegi | Category 1 | 63 mph | 217 km |
| 2012 | Son-tinh | Category 1 | 52 mph | 296 km |
| 2003 | Krovanh | Category 1 | 58 mph | 263 km |
| 1997 | Zita | Category 1 | 52 mph | 237 km |
| 1996 | Sally | Category 1 | 63 mph | 289 km |
Source: NOAA IBTrACS (Category 1+, 1980–2026).
Monthly Weather
| Month | Avg Temperature | Precipitation | Summary |
|---|---|---|---|
| January | 47°F (9°C) | 0.5 in | Coldest, Driest |
| February | 54°F (12°C) | 1.2 in | |
| March | 61°F (16°C) | 1.2 in | |
| April | 68°F (20°C) | 3.5 in | |
| May | 72°F (22°C) | 7.2 in | |
| June | 74°F (23°C) | 10.3 in | |
| July | 75°F (24°C) | 14.1 in | Warmest, Wettest |
| August | 74°F (23°C) | 13.1 in | |
| September | 72°F (22°C) | 7.1 in | |
| October | 66°F (19°C) | 3.6 in | |
| November | 60°F (15°C) | 1.9 in | |
| December | 54°F (12°C) | 0.8 in |
Thị Trấn Tam Sơn has a seasonal temperature swing of 27°F / from 47°F in January to 75°F in July. Total annual precipitation is 64.5 inches, with July being the wettest month (14.1") and January the driest (0.5").