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Weather & Climate in Wiang Nong Long, Thailand
Temperature, precipitation, air quality, natural hazards, and monthly weather data.
Wiang Nong Long has a warm climate with an average annual temperature of 79°F (26°C). Winters average 59°F in January while summers reach 81°F in July. The area gets 337 sunny days per year, well above the U.S. average of 205 / making it one of the sunnier locations in the country. Annual precipitation totals 84.9 inches (wetter than the 38-inch national average). The city sits at an elevation of 932 feet.
Temperature
59°F Jan (15°C)
81°F Jul (27°C)
| Annual Average | 78.5°F |
| 45% above US avg | |
| January Average | 59°F (15°C) |
| July Average | 81°F (27°C) |
| Sunny Days | 337 days/yr |
Geography
| Elevation | 932 ft (284 m) |
| Area | 302.2 sq mi (782.6 km²) |
| Population Density | 0/sq mi |
| Coordinates | 18.4204°N, 98.7497°W |
| Timezone | Asia/Bangkok |
Precipitation & Snow
Air Quality
Earthquake History
12 earthquakes (M2.5+) recorded within 150 km since 1990. Strongest on record: M4.6.
| Apr 10, 2013 | Myanmar-Thailand border region | M4.6 | 140 km | 10 km |
| Feb 20, 2019 | 26 km SW of Mae Chai, Thailand | M4.6 | 125 km | 10 km |
| Dec 21, 1995 | 52 km SSW of Fang, Thailand | M4.5 | 121 km | 41 km |
| Aug 24, 2014 | 44 km SSE of Fang, Thailand | M4.5 | 148 km | 20 km |
| Oct 10, 2013 | 30 km N of Chiang Mai, Thailand | M4.2 | 76 km | 35 km |
| Jun 2, 2025 | 43 km NNE of Chiang Mai, Thailand | M4.2 | 91 km | 10 km |
| May 29, 1995 | 47 km SSW of Mae Hong Son, Thailand | M4.0 | 113 km | 33 km |
| May 23, 1998 | 34 km E of Pai, Thailand | M4.0 | 107 km | 33 km |
| Nov 5, 1991 | 29 km S of Mae Hong Son, Thailand | M3.9 | 109 km | 10 km |
| Sep 1, 1990 | 58 km W of Mae Chai, Thailand | M3.7 | 111 km | 33 km |
| Jul 1, 2008 | 48 km W of Mae Chai, Thailand | M3.7 | 115 km | 10 km |
| May 7, 1994 | 13 km SSE of Mae Tha, Thailand | M3.6 | 46 km | 33 km |
Source: USGS Earthquake Catalog (M2.5+, 1990–2025). Sorted by magnitude.
Monthly Weather
| Month | Avg Temperature | Precipitation | Summary |
|---|---|---|---|
| January | 59°F (15°C) | 0.1 in | Coldest, Driest |
| February | 75°F (24°C) | 0.3 in | |
| March | 81°F (27°C) | 0.7 in | |
| April | 85°F (29°C) | 2.0 in | Warmest |
| May | 84°F (29°C) | 5.7 in | |
| June | 82°F (28°C) | 4.0 in | |
| July | 81°F (27°C) | 4.3 in | |
| August | 81°F (27°C) | 6.4 in | |
| September | 80°F (27°C) | 6.8 in | Wettest |
| October | 79°F (26°C) | 4.4 in | |
| November | 75°F (24°C) | 1.7 in | |
| December | 70°F (21°C) | 0.3 in |
Wiang Nong Long has a seasonal temperature swing of 26°F / from 59°F in January to 85°F in April. Total annual precipitation is 36.7 inches, with September being the wettest month (6.8") and January the driest (0.1").