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Weather & Climate in Chiang Rai, Thailand
Temperature, precipitation, air quality, natural hazards, and monthly weather data.
Chiang Rai has a warm climate with an average annual temperature of 77°F (25°C). Winters average 68°F in January while summers reach 80°F in July / relatively mild seasonal variation. The area gets 237 sunny days per year, above the national average. Annual precipitation totals 54.7 inches (wetter than the 38-inch national average). The city sits at an elevation of 1,316 feet.
Temperature
68°F Jan (20°C)
80°F Jul (27°C)
| Annual Average | 76.8°F |
| 42% above US avg | |
| January Average | 68°F (20°C) |
| July Average | 80°F (27°C) |
| Sunny Days | 237 days/yr |
Geography
| Elevation | 1,316 ft (401 m) |
| Area | 23.5 sq mi (60.8 km²) |
| Population Density | 3,353/sq mi |
| Coordinates | 19.9086°N, 99.8325°W |
| Timezone | Asia/Bangkok |
Precipitation & Snow
Air Quality
Earthquake History
80 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 | 87 km | 8 km |
| May 16, 2007 | 40 km NE of Ban Houakhoua, Laos | M6.3 | 115 km | 9 km |
| May 5, 2014 | 32 km SSW of Chiang Rai, Thailand | M6.1 | 33 km | 6 km |
| Jul 21, 2022 | 53 km S of K?ng Tung, Myanmar | M5.9 | 138 km | 5 km |
| Mar 24, 2011 | 25 km NNW of Tachilek, Myanmar | M5.7 | 83 km | 10 km |
| Sep 11, 1994 | 41 km NW of Mae Chai, Thailand | M5.2 | 49 km | 33 km |
| Mar 25, 2011 | 29 km N of Tachilek, Myanmar | M5.0 | 90 km | 10 km |
| Mar 26, 2011 | 40 km NE of Tachilek, Myanmar | M5.0 | 97 km | 28 km |
| May 6, 2014 | 31 km SW of Chiang Rai, Thailand | M5.0 | 32 km | 10 km |
| May 6, 2014 | 42 km SE of Fang, Thailand | M5.0 | 50 km | 10 km |
| Jul 21, 2022 | 58 km S of K?ng Tung, Myanmar | M4.9 | 133 km | 10 km |
| May 6, 2013 | 24 km N of Tachilek, Myanmar | M4.9 | 84 km | 36 km |
| Jul 21, 2022 | 53 km S of K?ng Tung, Myanmar | M4.9 | 138 km | 10 km |
| Mar 24, 2011 | 23 km NNE of Tachilek, Myanmar | M4.8 | 84 km | 11 km |
| Jul 29, 2022 | 65 km S of K?ng Tung, Myanmar | M4.8 | 126 km | 10 km |
| Jun 29, 2022 | 55 km S of K?ng Tung, Myanmar | M4.7 | 136 km | 10 km |
| Apr 18, 2017 | 40 km NE of Tachilek, Myanmar | M4.7 | 95 km | 10 km |
| Dec 21, 1996 | 9 km NE of Ban Houayxay, Laos | M4.7 | 82 km | 33 km |
| Jul 7, 2021 | 53 km NE of Chiang Klang, Thailand | M4.7 | 142 km | 10 km |
| Jul 24, 2022 | 53 km S of K?ng Tung, Myanmar | M4.6 | 139 km | 10 km |
Source: USGS Earthquake Catalog (M2.5+, 1990–2025). Sorted by magnitude.
Monthly Weather
| Month | Avg Temperature | Precipitation | Summary |
|---|---|---|---|
| January | 68°F (20°C) | 0.3 in | Driest |
| February | 73°F (23°C) | 0.5 in | |
| March | 78°F (25°C) | 0.9 in | |
| April | 82°F (28°C) | 3.2 in | Warmest |
| May | 82°F (28°C) | 7.2 in | |
| June | 81°F (27°C) | 6.2 in | |
| July | 80°F (27°C) | 9.4 in | |
| August | 80°F (26°C) | 11.5 in | Wettest |
| September | 79°F (26°C) | 8.6 in | |
| October | 77°F (25°C) | 4.3 in | |
| November | 73°F (23°C) | 1.9 in | |
| December | 68°F (20°C) | 0.6 in | Coldest |
Chiang Rai has a seasonal temperature swing of 14°F / from 68°F in December to 82°F in April. Total annual precipitation is 54.7 inches, with August being the wettest month (11.5") and January the driest (0.3").