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Weather & Climate in Phôngsali, Laos
Temperature, precipitation, air quality, natural hazards, and monthly weather data.
Phôngsali enjoys a temperate climate with an average annual temperature of 70°F (21°C). Winters average 60°F in January while summers reach 76°F in July / relatively mild seasonal variation. The area gets 218 sunny days per year. Annual precipitation totals 66.2 inches (wetter than the 38-inch national average). The city sits at an elevation of 4,449 feet.
Temperature
60°F Jan (15°C)
76°F Jul (24°C)
| Annual Average | 69.7°F |
| 29% above US avg | |
| January Average | 60°F (15°C) |
| July Average | 76°F (24°C) |
| Sunny Days | 218 days/yr |
Geography
| Elevation | 4,449 ft (1,356 m) |
| Area | 295.9 sq mi (766.5 km²) |
| Population Density | 46/sq mi |
| Coordinates | 21.6808°N, 102.1003°W |
| Timezone | Asia/Vientiane |
Precipitation & Snow
Air Quality
Earthquake History
50 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 | 144 km | 33 km |
| Jan 30, 1997 | 83 km NE of Jinghong, China | M5.0 | 122 km | 10 km |
| Feb 19, 2001 | 31 km W of Dien Bien Phu, Vietnam | M4.9 | 71 km | 10 km |
| Feb 9, 2018 | 38 km NE of Jinghong, China | M4.6 | 136 km | 10 km |
| Mar 29, 1993 | 53 km N of Dien Bien Phu, Vietnam | M4.6 | 105 km | 33 km |
| Jan 14, 2019 | 51 km SW of Phôngsali, Laos | M4.6 | 52 km | 10 km |
| Apr 22, 2016 | 37 km NE of Phôngsali, Laos | M4.5 | 37 km | 10 km |
| Feb 24, 2016 | 55 km WSW of Sa Pa, Vietnam | M4.5 | 139 km | 10 km |
| May 16, 2025 | 27 km S of Mường Lay, Vietnam | M4.5 | 102 km | 10 km |
| Mar 5, 2022 | 85 km NNW of Phôngsali, Laos | M4.5 | 85 km | 10 km |
| Feb 12, 2019 | 121 km NE of Jinghong, China | M4.5 | 148 km | 10 km |
| Mar 5, 2016 | 74 km ESE of Jinghong, China | M4.5 | 75 km | 16 km |
| Jan 28, 2014 | 85 km NE of Jinghong, China | M4.5 | 131 km | 10 km |
| Jun 16, 2020 | 100 km NNE of Phôngsali, Laos | M4.5 | 101 km | 10 km |
| Apr 12, 2002 | 94 km NE of Phôngsali, Laos | M4.5 | 94 km | 10 km |
| Jan 25, 1997 | 42 km ENE of Jinghong, China | M4.5 | 109 km | 33 km |
| Mar 4, 2001 | 10 km WSW of Dien Bien Phu, Vietnam | M4.5 | 93 km | 10 km |
| Nov 9, 1995 | 76 km ENE of Phôngsali, Laos | M4.4 | 77 km | 33 km |
| Jan 19, 2002 | 42 km NNE of Luang Namtha, Laos | M4.4 | 75 km | 33 km |
| Sep 19, 1993 | 52 km NNW of Phôngsali, Laos | M4.4 | 53 km | 33 km |
Source: USGS Earthquake Catalog (M2.5+, 1990–2025). Sorted by magnitude.
Monthly Weather
| Month | Avg Temperature | Precipitation | Summary |
|---|---|---|---|
| January | 60°F (15°C) | 0.6 in | Coldest, Driest |
| February | 63°F (17°C) | 1.3 in | |
| March | 68°F (20°C) | 1.3 in | |
| April | 73°F (23°C) | 3.2 in | |
| May | 75°F (24°C) | 7.0 in | |
| June | 76°F (25°C) | 10.1 in | Warmest |
| July | 76°F (24°C) | 13.8 in | Wettest |
| August | 76°F (24°C) | 12.8 in | |
| September | 74°F (24°C) | 7.8 in | |
| October | 71°F (22°C) | 4.4 in | |
| November | 65°F (19°C) | 2.8 in | |
| December | 60°F (15°C) | 1.2 in |
Phôngsali has a seasonal temperature swing of 17°F / from 60°F in January to 76°F in June. Total annual precipitation is 66.2 inches, with July being the wettest month (13.8") and January the driest (0.6").