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Weather & Climate in Si Pa Phìn, Vietnam
Temperature, precipitation, air quality, natural hazards, and monthly weather data.
Si Pa Phìn enjoys a temperate climate with an average annual temperature of 69°F (20°C). Winters average 58°F in January while summers reach 75°F in July / relatively mild seasonal variation. The area gets 223 sunny days per year, above the national average. Annual precipitation totals 68.5 inches (wetter than the 38-inch national average). The city sits at an elevation of 3,684 feet.
Temperature
58°F Jan (15°C)
75°F Jul (24°C)
| Annual Average | 68.5°F |
| 27% above US avg | |
| January Average | 58°F (15°C) |
| July Average | 75°F (24°C) |
| Sunny Days | 223 days/yr |
Geography
| Elevation | 3,684 ft (1,123 m) |
| Area | 94.0 sq mi (243.4 km²) |
| Population Density | 65/sq mi |
| Coordinates | 21.8015°N, 102.9626°W |
| Timezone | Asia/Ho_Chi_Minh |
Precipitation & Snow
Air Quality
Earthquake History
41 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 | 104 km | 33 km |
| Feb 19, 2001 | 31 km W of Dien Bien Phu, Vietnam | M4.9 | 52 km | 10 km |
| Apr 3, 2003 | 83 km S of Dien Bien Phu, Vietnam | M4.7 | 130 km | 10 km |
| Mar 29, 1993 | 53 km N of Dien Bien Phu, Vietnam | M4.6 | 16 km | 33 km |
| Jul 19, 2014 | 19 km NNE of S?n La, Vietnam | M4.6 | 110 km | 17 km |
| Jan 14, 2019 | 51 km SW of Phôngsali, Laos | M4.6 | 134 km | 10 km |
| Apr 22, 2016 | 37 km NE of Phôngsali, Laos | M4.5 | 65 km | 10 km |
| Mar 5, 2022 | 85 km NNW of Phôngsali, Laos | M4.5 | 145 km | 10 km |
| Apr 12, 2002 | 94 km NE of Phôngsali, Laos | M4.5 | 71 km | 10 km |
| Jun 16, 2020 | 100 km NNE of Phôngsali, Laos | M4.5 | 83 km | 10 km |
| Mar 4, 2001 | 10 km WSW of Dien Bien Phu, Vietnam | M4.5 | 49 km | 10 km |
| May 16, 2025 | 27 km S of Mường Lay, Vietnam | M4.5 | 14 km | 10 km |
| Feb 24, 2016 | 55 km WSW of Sa Pa, Vietnam | M4.5 | 58 km | 10 km |
| Oct 6, 1991 | 33 km E of S?n La, Vietnam | M4.5 | 139 km | 10 km |
| May 2, 2007 | 73 km S of Dien Bien Phu, Vietnam | M4.5 | 121 km | 10 km |
| May 22, 2009 | 25 km SSE of Phôngsali, Laos | M4.4 | 83 km | 10 km |
| Sep 19, 1993 | 52 km NNW of Phôngsali, Laos | M4.4 | 111 km | 33 km |
| Mar 30, 1993 | 55 km N of Dien Bien Phu, Vietnam | M4.4 | 15 km | 33 km |
| Oct 5, 2009 | 54 km NNW of Phôngsali, Laos | M4.4 | 117 km | 26 km |
| Jan 10, 2019 | 52 km SW of Phôngsali, Laos | M4.4 | 135 km | 10 km |
Source: USGS Earthquake Catalog (M2.5+, 1990–2025). Sorted by magnitude.
Hurricane History
1 hurricane (Category 1+) recorded within 500 km since 1980. Strongest on record: Category 1.
| Year | Name | Category | Max Wind | Closest |
| 2024 | Yagi | Category 1 | — | 297 km |
Source: NOAA IBTrACS (Category 1+, 1980–2026).
Monthly Weather
| Month | Avg Temperature | Precipitation | Summary |
|---|---|---|---|
| January | 58°F (15°C) | 0.4 in | Coldest, Driest |
| February | 61°F (16°C) | 1.6 in | |
| March | 67°F (19°C) | 1.4 in | |
| April | 72°F (22°C) | 4.0 in | |
| May | 74°F (23°C) | 8.0 in | |
| June | 75°F (24°C) | 12.1 in | Warmest |
| July | 75°F (24°C) | 16.9 in | Wettest |
| August | 75°F (24°C) | 15.0 in | |
| September | 73°F (23°C) | 5.2 in | |
| October | 70°F (21°C) | 2.8 in | |
| November | 64°F (18°C) | 0.9 in | |
| December | 59°F (15°C) | 0.4 in |
Si Pa Phìn has a seasonal temperature swing of 17°F / from 58°F in January to 75°F in June. Total annual precipitation is 68.5 inches, with July being the wettest month (16.9") and January the driest (0.4").