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Weather & Climate in Bang Sai, Thailand
Temperature, precipitation, air quality, natural hazards, and monthly weather data.
Bang Sai has a warm climate with an average annual temperature of 82°F (28°C). Winters average 78°F in January while summers reach 84°F in July / relatively mild seasonal variation. The area gets 343 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 61.0 inches (wetter than the 38-inch national average). The city sits at an elevation of 26 feet.
Temperature
78°F Jan (25°C)
84°F Jul (29°C)
| Annual Average | 82.3°F |
| 52% above US avg | |
| January Average | 78°F (25°C) |
| July Average | 84°F (29°C) |
| Sunny Days | 343 days/yr |
Geography
| Elevation | 26 ft (8 m) |
| Area | 3.8 sq mi (9.9 km²) |
| Population Density | 0/sq mi |
| Coordinates | 14.3343°N, 100.3038°W |
| Timezone | Asia/Bangkok |
Precipitation & Snow
Air Quality
Earthquake History
1 earthquake (M2.5+) recorded within 150 km since 1990. Strongest on record: M4.2.
| Nov 3, 1990 | 67 km NNW of Bo Phloi, Thailand | M4.2 | 134 km | 10 km |
Source: USGS Earthquake Catalog (M2.5+, 1990–2025). Sorted by magnitude.
Monthly Weather
| Month | Avg Temperature | Precipitation | Summary |
|---|---|---|---|
| January | 78°F (25°C) | 0.2 in | Driest |
| February | 81°F (27°C) | 0.3 in | |
| March | 84°F (29°C) | 0.9 in | |
| April | 87°F (30°C) | 2.3 in | Warmest |
| May | 85°F (30°C) | 5.0 in | |
| June | 84°F (29°C) | 4.0 in | |
| July | 84°F (29°C) | 4.0 in | |
| August | 83°F (28°C) | 5.1 in | |
| September | 82°F (28°C) | 8.7 in | Wettest |
| October | 82°F (28°C) | 7.0 in | |
| November | 80°F (27°C) | 1.5 in | |
| December | 77°F (25°C) | 0.2 in | Coldest |
Bang Sai has a seasonal temperature swing of 10°F / from 77°F in December to 87°F in April. Total annual precipitation is 39.2 inches, with September being the wettest month (8.7") and January the driest (0.2").