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Weather & Climate in Chian Yai, Thailand
Temperature, precipitation, air quality, natural hazards, and monthly weather data.
Chian Yai has a warm climate with an average annual temperature of 81°F (27°C). Winters average 78°F in January while summers reach 82°F in July / relatively mild seasonal variation. The area gets 327 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 78.3 inches (wetter than the 38-inch national average). The city sits at an elevation of 23 feet.
Temperature
78°F Jan (25°C)
82°F Jul (28°C)
| Annual Average | 81.2°F |
| 50% above US avg | |
| January Average | 78°F (25°C) |
| July Average | 82°F (28°C) |
| Sunny Days | 327 days/yr |
Geography
| Elevation | 23 ft (7 m) |
| Area | 315.1 sq mi (816.2 km²) |
| Population Density | 0/sq mi |
| Coordinates | 8.1694°N, 100.1447°W |
| Timezone | Asia/Bangkok |
Precipitation & Snow
Air Quality
Hurricane History
1 hurricane (Category 1+) recorded within 500 km since 1980. Strongest on record: Category 3.
| Year | Name | Category | Max Wind | Closest |
| 1989 | Gay | Category 3 | 132 mph | 195 km |
Source: NOAA IBTrACS (Category 1+, 1980–2026).
Monthly Weather
| Month | Avg Temperature | Precipitation | Summary |
|---|---|---|---|
| January | 78°F (25°C) | 3.4 in | Coldest |
| February | 80°F (27°C) | 1.7 in | Driest |
| March | 82°F (28°C) | 2.8 in | |
| April | 83°F (29°C) | 3.8 in | Warmest |
| May | 83°F (28°C) | 6.2 in | |
| June | 83°F (28°C) | 4.1 in | |
| July | 82°F (28°C) | 4.9 in | |
| August | 82°F (28°C) | 4.9 in | |
| September | 81°F (27°C) | 6.7 in | |
| October | 80°F (27°C) | 10.5 in | |
| November | 79°F (26°C) | 18.6 in | Wettest |
| December | 79°F (26°C) | 12.0 in |
Chian Yai has a seasonal temperature swing of 6°F / from 78°F in January to 83°F in April. Total annual precipitation is 79.6 inches, with November being the wettest month (18.6") and February the driest (1.7").