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Weather & Climate in Phong Thổ, Vietnam
Temperature, precipitation, air quality, natural hazards, and monthly weather data.
Phong Thổ enjoys a temperate climate with an average annual temperature of 68°F (20°C). Winters average 53°F in January while summers reach 75°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 892 feet.
Temperature
53°F Jan (12°C)
75°F Jul (24°C)
| Annual Average | 68.2°F |
| 26% above US avg | |
| January Average | 53°F (12°C) |
| July Average | 75°F (24°C) |
| Sunny Days | 323 days/yr |
Geography
| Elevation | 892 ft (272 m) |
| Area | 80.4 sq mi (208.2 km²) |
| Population Density | 0/sq mi |
| Coordinates | 22.5443°N, 103.2978°W |
| Timezone | Asia/Bangkok |
Precipitation & Snow
Air Quality
Earthquake History
46 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 | 46 km | 33 km |
| Feb 19, 2001 | 31 km W of Dien Bien Phu, Vietnam | M4.9 | 141 km | 10 km |
| Aug 13, 2005 | 32 km NNW of Wenshan City, China | M4.8 | 146 km | 10 km |
| Jul 19, 2014 | 19 km NNE of S?n La, Vietnam | M4.6 | 137 km | 17 km |
| Mar 29, 1993 | 53 km N of Dien Bien Phu, Vietnam | M4.6 | 78 km | 33 km |
| Apr 30, 2001 | 97 km WSW of Gejiu, China | M4.5 | 119 km | 33 km |
| Apr 22, 2016 | 37 km NE of Phôngsali, Laos | M4.5 | 120 km | 10 km |
| May 16, 2025 | 27 km S of Mường Lay, Vietnam | M4.5 | 90 km | 10 km |
| May 4, 2016 | 19 km SE of Gejiu, China | M4.5 | 78 km | 15 km |
| May 4, 2016 | 20 km ESE of Gejiu, China | M4.5 | 85 km | 16 km |
| Jun 16, 2020 | 100 km NNE of Phôngsali, Laos | M4.5 | 73 km | 10 km |
| Apr 12, 2002 | 94 km NE of Phôngsali, Laos | M4.5 | 70 km | 10 km |
| Mar 4, 2001 | 10 km WSW of Dien Bien Phu, Vietnam | M4.5 | 137 km | 10 km |
| Feb 24, 2016 | 55 km WSW of Sa Pa, Vietnam | M4.5 | 38 km | 10 km |
| May 27, 2002 | 11 km NNE of Kaiyuan, China | M4.5 | 139 km | 10 km |
| Mar 30, 1993 | 55 km N of Dien Bien Phu, Vietnam | M4.4 | 77 km | 33 km |
| Mar 5, 1991 | 106 km WSW of Gejiu, China | M4.4 | 124 km | 33 km |
| Oct 4, 1992 | 49 km WNW of Gejiu, China | M4.4 | 122 km | 10 km |
| Nov 9, 1995 | 76 km ENE of Phôngsali, Laos | M4.4 | 80 km | 33 km |
| Sep 19, 1993 | 52 km NNW of Phôngsali, Laos | M4.4 | 147 km | 33 km |
Source: USGS Earthquake Catalog (M2.5+, 1990–2025). Sorted by magnitude.
Monthly Weather
| Month | Avg Temperature | Precipitation | Summary |
|---|---|---|---|
| January | 53°F (12°C) | 0.5 in | Coldest |
| February | 60°F (15°C) | 1.6 in | |
| March | 66°F (19°C) | 1.6 in | |
| April | 71°F (22°C) | 3.9 in | |
| May | 74°F (23°C) | 7.8 in | |
| June | 76°F (24°C) | 11.7 in | Warmest |
| July | 75°F (24°C) | 14.3 in | Wettest |
| August | 75°F (24°C) | 12.4 in | |
| September | 73°F (23°C) | 5.7 in | |
| October | 70°F (21°C) | 3.3 in | |
| November | 63°F (17°C) | 1.4 in | |
| December | 58°F (14°C) | 0.4 in | Driest |
Phong Thổ has a seasonal temperature swing of 23°F / from 53°F in January to 76°F in June. Total annual precipitation is 64.6 inches, with July being the wettest month (14.3") and December the driest (0.4").