Weather & Climate in Phayao, Thailand
Temperature, precipitation, air quality, natural hazards, and monthly weather data.
Phayao has a warm climate with an average annual temperature of 78°F (25°C). Winters average 70°F in January while summers reach 81°F in July / relatively mild seasonal variation. Annual precipitation totals 44.4 inches. The city sits at an elevation of 1,342 feet.
Temperature
70°F Jan (21°C)
81°F Jul (27°C)
| Annual Average | 77.6°F |
| 44% above US avg | |
| January Average | 70°F (21°C) |
| July Average | 81°F (27°C) |
Geography
| Elevation | 1,342 ft (409 m) |
| Area | 35.1 sq mi (91.0 km²) |
| Population Density | 497/sq mi |
| Coordinates | 19.1920°N, 99.8788°E |
| Timezone | Asia/Bangkok |
Precipitation & Snow
Air Quality
Earthquake History
38 earthquakes (M2.5+) recorded within 150 km since 1990. Strongest on record: M6.1.
| May 5, 2014 | 32 km SSW of Chiang Rai, Thailand | M6.1 | 56 km | 6 km |
| Sep 11, 1994 | 41 km NW of Mae Chai, Thailand | M5.2 | 58 km | 33 km |
| May 6, 2014 | 31 km SW of Chiang Rai, Thailand | M5.0 | 63 km | 10 km |
| May 6, 2014 | 42 km SE of Fang, Thailand | M5.0 | 64 km | 10 km |
| Dec 9, 1995 | 9 km ENE of Rong Kwang, Thailand | M4.7 | 106 km | 10 km |
| Jul 7, 2021 | 53 km NE of Chiang Klang, Thailand | M4.7 | 145 km | 10 km |
| Dec 21, 1996 | 9 km NE of Ban Houayxay, Laos | M4.7 | 142 km | 33 km |
| Feb 20, 2019 | 26 km SW of Mae Chai, Thailand | M4.6 | 28 km | 10 km |
| May 6, 2014 | 40 km SW of Chiang Rai, Thailand | M4.6 | 66 km | 10 km |
| May 5, 2014 | 32 km SSW of Chiang Rai, Thailand | M4.6 | 57 km | 10 km |
| Aug 24, 2014 | 44 km SSE of Fang, Thailand | M4.5 | 62 km | 20 km |
| Jul 2, 2002 | 44 km N of Chiang Klang, Thailand | M4.5 | 111 km | 33 km |
| Dec 21, 1995 | 52 km SSW of Fang, Thailand | M4.5 | 90 km | 41 km |
| May 7, 2014 | 38 km SW of Chiang Rai, Thailand | M4.5 | 60 km | 10 km |
| May 5, 2014 | 31 km SSW of Chiang Rai, Thailand | M4.4 | 58 km | 10 km |
| Nov 11, 2001 | 13 km W of Pa Daet, Thailand | M4.4 | 35 km | 33 km |
| May 5, 2014 | 27 km SW of Chiang Rai, Thailand | M4.4 | 70 km | 10 km |
| May 12, 2014 | 29 km SSW of Chiang Rai, Thailand | M4.3 | 56 km | 10 km |
| May 6, 2014 | 39 km NW of Mae Chai, Thailand | M4.3 | 57 km | 10 km |
| May 5, 2014 | 38 km NW of Mae Chai, Thailand | M4.3 | 57 km | 10 km |
Source: USGS Earthquake Catalog (M2.5+, 1990-2025). Sorted by magnitude.
Monthly Weather
| Month | Avg Temperature | Precipitation | Summary |
|---|---|---|---|
| January | 70°F (21°C) | 0.2 in | Driest |
| February | 74°F (23°C) | 0.3 in | |
| March | 80°F (26°C) | 1.0 in | |
| April | 84°F (29°C) | 3.2 in | Warmest |
| May | 82°F (28°C) | 6.8 in | |
| June | 82°F (28°C) | 4.5 in | |
| July | 81°F (27°C) | 7.1 in | |
| August | 80°F (27°C) | 8.5 in | Wettest |
| September | 80°F (26°C) | 7.2 in | |
| October | 78°F (25°C) | 3.9 in | |
| November | 73°F (23°C) | 1.4 in | |
| December | 69°F (20°C) | 0.4 in | Coldest |
Phayao has a seasonal temperature swing of 15°F / from 69°F in December to 84°F in April. Total annual precipitation is 44.4 inches, with August being the wettest month (8.5") and January the driest (0.2").