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Weather & Climate in Xam Nua, Laos
Temperature, precipitation, air quality, natural hazards, and monthly weather data.
Xam Nua enjoys a temperate climate with an average annual temperature of 67°F (20°C). Winters average 57°F in January while summers reach 74°F in July / relatively mild seasonal variation. The area gets 241 sunny days per year, above the national average. Annual precipitation totals 52.5 inches (wetter than the 38-inch national average). The city sits at an elevation of 3,140 feet.
Temperature
57°F Jan (14°C)
74°F Jul (23°C)
| Annual Average | 67.1°F |
| 24% above US avg | |
| January Average | 57°F (14°C) |
| July Average | 74°F (23°C) |
| Sunny Days | 241 days/yr |
Geography
| Elevation | 3,140 ft (957 m) |
| Area | 1,611.9 sq mi (4,174.7 km²) |
| Population Density | 29/sq mi |
| Coordinates | 20.4164°N, 104.0450°W |
| Timezone | Asia/Vientiane |
Precipitation & Snow
Air Quality
Earthquake History
13 earthquakes (M2.5+) recorded within 150 km since 1990. Strongest on record: M4.9.
| Jul 27, 2020 | ~120km W of Hanoi, Vietnam | M4.9 | 78 km | 10 km |
| Apr 3, 2003 | 83 km S of Dien Bien Phu, Vietnam | M4.7 | 95 km | 10 km |
| Jul 19, 2014 | 19 km NNE of S?n La, Vietnam | M4.6 | 120 km | 17 km |
| May 2, 2007 | 73 km S of Dien Bien Phu, Vietnam | M4.5 | 101 km | 10 km |
| May 26, 2015 | 73 km ESE of Muang Phônsavan, Laos | M4.5 | 139 km | 13 km |
| Oct 6, 1991 | 33 km E of S?n La, Vietnam | M4.5 | 109 km | 10 km |
| Jun 21, 1995 | 83 km W of Xam Nua, Laos | M4.4 | 83 km | 33 km |
| Mar 14, 2022 | 76 km SSE of Dien Bien Phu, Vietnam | M4.4 | 83 km | 10 km |
| Jan 7, 2018 | 36 km E of Dien Bien Phu, Vietnam | M4.3 | 128 km | 10 km |
| Jan 8, 2018 | 36 km E of Dien Bien Phu, Vietnam | M4.3 | 127 km | 10 km |
| Jun 21, 1995 | 72 km N of Muang Phônsavan, Laos | M4.2 | 91 km | 10 km |
| May 7, 2011 | 46 km SSW of S?n La, Vietnam | M4.1 | 72 km | 10 km |
| Sep 19, 2010 | 71 km SSW of Hòa Bình, Vietnam | M4.0 | 106 km | 10 km |
Source: USGS Earthquake Catalog (M2.5+, 1990–2025). Sorted by magnitude.
Hurricane History
12 hurricanes (Category 1+) recorded within 500 km since 1980. Strongest on record: Category 2.
| Year | Name | Category | Max Wind | Closest |
| 2025 | Kajiki | Category 2 | — | 266 km |
| 2024 | Yagi | Category 2 | 63 mph | 184 km |
| 2016 | Mirinae | Category 1 | 52 mph | 226 km |
| 2014 | Kalmaegi | Category 1 | 63 mph | 292 km |
| 2013 | Wutip | Category 1 | 69 mph | 294 km |
| 2012 | Son-tinh | Category 2 | 69 mph | 267 km |
| 1997 | Zita | Category 1 | 46 mph | 231 km |
| 1996 | Frankie | Category 2 | 52 mph | 194 km |
| 1996 | Niki | Category 1 | 63 mph | 169 km |
| 1995 | Lois | Category 1 | 52 mph | 204 km |
| 1982 | Nancy | Category 1 | 81 mph | 227 km |
| 1980 | Ruth | Category 1 | 63 mph | 283 km |
Source: NOAA IBTrACS (Category 1+, 1980–2026).
Monthly Weather
| Month | Avg Temperature | Precipitation | Summary |
|---|---|---|---|
| January | 57°F (14°C) | 0.1 in | Coldest, Driest |
| February | 59°F (15°C) | 0.9 in | |
| March | 64°F (18°C) | 1.5 in | |
| April | 69°F (21°C) | 4.2 in | |
| May | 73°F (23°C) | 6.7 in | |
| June | 74°F (24°C) | 6.4 in | Warmest |
| July | 74°F (23°C) | 10.8 in | Wettest |
| August | 74°F (23°C) | 10.4 in | |
| September | 72°F (22°C) | 7.7 in | |
| October | 69°F (20°C) | 2.7 in | |
| November | 63°F (17°C) | 0.8 in | |
| December | 58°F (14°C) | 0.4 in |
Xam Nua has a seasonal temperature swing of 18°F / from 57°F in January to 74°F in June. Total annual precipitation is 52.5 inches, with July being the wettest month (10.8") and January the driest (0.1").