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Weather & Climate in Tam Đường, Vietnam
Temperature, precipitation, air quality, natural hazards, and monthly weather data.
Tam Đường enjoys a temperate climate with an average annual temperature of 65°F (18°C). Winters average 53°F in January while summers reach 73°F in July. The area gets 323 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 62.6 inches (wetter than the 38-inch national average). The city sits at an elevation of 2,110 feet.
Temperature
53°F Jan (12°C)
73°F Jul (23°C)
| Annual Average | 65.1°F |
| 21% above US avg | |
| January Average | 53°F (12°C) |
| July Average | 73°F (23°C) |
| Sunny Days | 323 days/yr |
Geography
| Elevation | 2,110 ft (643 m) |
| Area | 72.8 sq mi (188.5 km²) |
| Population Density | 0/sq mi |
| Coordinates | 22.3181°N, 103.6262°W |
| Timezone | Asia/Bangkok |
Precipitation & Snow
Air Quality
Earthquake History
35 earthquakes (M2.5+) recorded within 150 km since 1990. Strongest on record: M5.2.
| Apr 24, 1995 | 73 km SSW of Gejiu, China | M5.2 | 87 km | 33 km |
| Feb 19, 2001 | 31 km W of Dien Bien Phu, Vietnam | M4.9 | 139 km | 10 km |
| Mar 29, 1993 | 53 km N of Dien Bien Phu, Vietnam | M4.6 | 74 km | 33 km |
| Jul 19, 2014 | 19 km NNE of S?n La, Vietnam | M4.6 | 99 km | 17 km |
| May 4, 2016 | 19 km SE of Gejiu, China | M4.5 | 109 km | 15 km |
| May 4, 2016 | 20 km ESE of Gejiu, China | M4.5 | 114 km | 16 km |
| May 16, 2025 | 27 km S of Mường Lay, Vietnam | M4.5 | 83 km | 10 km |
| Mar 4, 2001 | 10 km WSW of Dien Bien Phu, Vietnam | M4.5 | 128 km | 10 km |
| Feb 24, 2016 | 55 km WSW of Sa Pa, Vietnam | M4.5 | 34 km | 10 km |
| Apr 12, 2002 | 94 km NE of Phôngsali, Laos | M4.5 | 101 km | 10 km |
| Oct 6, 1991 | 33 km E of S?n La, Vietnam | M4.5 | 121 km | 10 km |
| Jun 16, 2020 | 100 km NNE of Phôngsali, Laos | M4.5 | 108 km | 10 km |
| Apr 22, 2016 | 37 km NE of Phôngsali, Laos | M4.5 | 139 km | 10 km |
| Nov 9, 1995 | 76 km ENE of Phôngsali, Laos | M4.4 | 97 km | 33 km |
| Mar 30, 1993 | 55 km N of Dien Bien Phu, Vietnam | M4.4 | 75 km | 33 km |
| Apr 2, 2001 | 74 km WSW of Sa Pa, Vietnam | M4.4 | 53 km | 33 km |
| Nov 13, 1996 | 100 km NE of Phôngsali, Laos | M4.3 | 89 km | 33 km |
| Jul 12, 2020 | 87 km SW of Gejiu, China | M4.3 | 122 km | 10 km |
| Nov 28, 2001 | 82 km W of Sa Pa, Vietnam | M4.3 | 61 km | 33 km |
| Jan 8, 2018 | 36 km E of Dien Bien Phu, Vietnam | M4.3 | 109 km | 10 km |
Source: USGS Earthquake Catalog (M2.5+, 1990–2025). Sorted by magnitude.
Hurricane History
2 hurricanes (Category 1+) recorded within 500 km since 1980. Strongest on record: Category 2.
| Year | Name | Category | Max Wind | Closest |
| 2024 | Yagi | Category 2 | 63 mph | 260 km |
| 1997 | Zita | Category 1 | — | 284 km |
Source: NOAA IBTrACS (Category 1+, 1980–2026).
Monthly Weather
| Month | Avg Temperature | Precipitation | Summary |
|---|---|---|---|
| January | 53°F (12°C) | 0.9 in | Coldest |
| February | 56°F (13°C) | 2.0 in | |
| March | 62°F (17°C) | 2.1 in | |
| April | 68°F (20°C) | 5.1 in | |
| May | 71°F (22°C) | 9.0 in | |
| June | 73°F (23°C) | 11.1 in | Warmest |
| July | 73°F (23°C) | 15.6 in | Wettest |
| August | 73°F (23°C) | 14.2 in | |
| September | 71°F (22°C) | 8.8 in | |
| October | 66°F (19°C) | 4.5 in | |
| November | 60°F (16°C) | 1.2 in | |
| December | 55°F (13°C) | 0.4 in | Driest |
Tam Đường has a seasonal temperature swing of 20°F / from 53°F in January to 73°F in June. Total annual precipitation is 74.9 inches, with July being the wettest month (15.6") and December the driest (0.4").