All Countries
Weather & Climate in Chiang Khong, Thailand
Temperature, precipitation, air quality, natural hazards, and monthly weather data.
Chiang Khong has a warm climate with an average annual temperature of 77°F (25°C). Winters average 69°F in January while summers reach 81°F in July / relatively mild seasonal variation. The area gets 218 sunny days per year. Annual precipitation totals 68.9 inches (wetter than the 38-inch national average). The city sits at an elevation of 1,175 feet.
Temperature
69°F Jan (21°C)
81°F Jul (27°C)
| Annual Average | 77.4°F |
| 43% above US avg | |
| January Average | 69°F (21°C) |
| July Average | 81°F (27°C) |
| Sunny Days | 218 days/yr |
Geography
| Elevation | 1,175 ft (358 m) |
| Area | 298.8 sq mi (773.8 km²) |
| Population Density | 49/sq mi |
| Coordinates | 20.2613°N, 100.4046°W |
| Timezone | Asia/Bangkok |
Precipitation & Snow
Air Quality
Earthquake History
79 earthquakes (M2.5+) recorded within 150 km since 1990. Strongest on record: M6.9.
| Mar 24, 2011 | 27 km NNW of Tachilek, Myanmar | M6.9 | 77 km | 8 km |
| May 16, 2007 | 40 km NE of Ban Houakhoua, Laos | M6.3 | 43 km | 9 km |
| May 5, 2014 | 32 km SSW of Chiang Rai, Thailand | M6.1 | 102 km | 6 km |
| Jul 21, 2022 | 53 km S of K?ng Tung, Myanmar | M5.9 | 113 km | 5 km |
| Mar 24, 2011 | 25 km NNW of Tachilek, Myanmar | M5.7 | 79 km | 10 km |
| Jun 23, 2007 | 114 km N of Tachilek, Myanmar | M5.6 | 150 km | 22 km |
| Jan 19, 2000 | 73 km NE of Chiang Klang, Thailand | M5.4 | 104 km | 33 km |
| Sep 11, 1994 | 41 km NW of Mae Chai, Thailand | M5.2 | 119 km | 33 km |
| Mar 25, 2011 | 29 km N of Tachilek, Myanmar | M5.0 | 74 km | 10 km |
| May 6, 2014 | 31 km SW of Chiang Rai, Thailand | M5.0 | 102 km | 10 km |
| Mar 26, 2011 | 40 km NE of Tachilek, Myanmar | M5.0 | 61 km | 28 km |
| May 6, 2014 | 42 km SE of Fang, Thailand | M5.0 | 121 km | 10 km |
| Jul 21, 2022 | 58 km S of K?ng Tung, Myanmar | M4.9 | 109 km | 10 km |
| Mar 19, 2010 | 91 km SW of Jinghong, China | M4.9 | 133 km | 10 km |
| Jul 21, 2022 | 53 km S of K?ng Tung, Myanmar | M4.9 | 111 km | 10 km |
| May 6, 2013 | 24 km N of Tachilek, Myanmar | M4.9 | 73 km | 36 km |
| Jul 29, 2022 | 65 km S of K?ng Tung, Myanmar | M4.8 | 100 km | 10 km |
| Mar 24, 2011 | 23 km NNE of Tachilek, Myanmar | M4.8 | 66 km | 11 km |
| Jun 29, 2022 | 55 km S of K?ng Tung, Myanmar | M4.7 | 111 km | 10 km |
| Dec 21, 1996 | 9 km NE of Ban Houayxay, Laos | M4.7 | 11 km | 33 km |
Source: USGS Earthquake Catalog (M2.5+, 1990–2025). Sorted by magnitude.
Monthly Weather
| Month | Avg Temperature | Precipitation | Summary |
|---|---|---|---|
| January | 69°F (21°C) | 0.4 in | Coldest, Driest |
| February | 74°F (23°C) | 0.7 in | |
| March | 78°F (25°C) | 1.1 in | |
| April | 82°F (28°C) | 3.5 in | |
| May | 83°F (28°C) | 8.1 in | Warmest |
| June | 82°F (28°C) | 8.4 in | |
| July | 81°F (27°C) | 13.6 in | |
| August | 80°F (27°C) | 15.6 in | Wettest |
| September | 80°F (27°C) | 10.6 in | |
| October | 78°F (26°C) | 4.4 in | |
| November | 74°F (23°C) | 2.1 in | |
| December | 69°F (21°C) | 0.6 in |
Chiang Khong has a seasonal temperature swing of 14°F / from 69°F in January to 83°F in May. Total annual precipitation is 68.9 inches, with August being the wettest month (15.6") and January the driest (0.4").