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Weather & Climate in Sainyabuli, Laos
Temperature, precipitation, air quality, natural hazards, and monthly weather data.
Sainyabuli has a warm climate with an average annual temperature of 76°F (25°C). Winters average 69°F in January while summers reach 80°F in July / relatively mild seasonal variation. The area gets 243 sunny days per year, above the national average. Annual precipitation totals 51.4 inches (wetter than the 38-inch national average). The city sits at an elevation of 958 feet.
Temperature
69°F Jan (20°C)
80°F Jul (27°C)
| Annual Average | 76.4°F |
| 41% above US avg | |
| January Average | 69°F (20°C) |
| July Average | 80°F (27°C) |
| Sunny Days | 243 days/yr |
Geography
| Elevation | 958 ft (292 m) |
| Area | 1,162.7 sq mi (3,011.3 km²) |
| Population Density | 12/sq mi |
| Coordinates | 19.2576°N, 101.7103°W |
| Timezone | Asia/Vientiane |
Precipitation & Snow
Air Quality
Earthquake History
9 earthquakes (M2.5+) recorded within 150 km since 1990. Strongest on record: M5.4.
| Jan 19, 2000 | 73 km NE of Chiang Klang, Thailand | M5.4 | 77 km | 33 km |
| Sep 28, 1996 | 61 km W of Muang Phônsavan, Laos | M4.8 | 100 km | 33 km |
| Jul 7, 2021 | 53 km NE of Chiang Klang, Thailand | M4.7 | 74 km | 10 km |
| Feb 23, 2011 | 37 km S of Sainyabuli, Laos | M4.6 | 38 km | 10 km |
| Jul 2, 2002 | 44 km N of Chiang Klang, Thailand | M4.5 | 108 km | 33 km |
| May 5, 2017 | 64 km W of Luang Prabang, Laos | M4.5 | 74 km | 17 km |
| Mar 31, 1999 | 31 km NNW of Sainyabuli, Laos | M4.5 | 32 km | 10 km |
| May 16, 2007 | 28 km SSE of Ban Houakhoua, Laos | M4.0 | 145 km | 10 km |
| Mar 27, 2004 | 32 km S of Nan, Thailand | M3.8 | 128 km | 13 km |
Source: USGS Earthquake Catalog (M2.5+, 1990–2025). Sorted by magnitude.
Monthly Weather
| Month | Avg Temperature | Precipitation | Summary |
|---|---|---|---|
| January | 69°F (20°C) | 0.4 in | Driest |
| February | 72°F (22°C) | 0.6 in | |
| March | 77°F (25°C) | 1.7 in | |
| April | 81°F (27°C) | 3.5 in | |
| May | 81°F (27°C) | 6.7 in | |
| June | 81°F (27°C) | 6.9 in | Warmest |
| July | 80°F (27°C) | 8.3 in | |
| August | 80°F (27°C) | 10.3 in | Wettest |
| September | 79°F (26°C) | 8.7 in | |
| October | 77°F (25°C) | 3.1 in | |
| November | 72°F (22°C) | 1.0 in | |
| December | 68°F (20°C) | 0.4 in | Coldest |
Sainyabuli has a seasonal temperature swing of 13°F / from 68°F in December to 81°F in June. Total annual precipitation is 51.4 inches, with August being the wettest month (10.3") and January the driest (0.4").