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Weather & Climate in Si Prachan, Thailand
Temperature, precipitation, air quality, natural hazards, and monthly weather data.
Si Prachan has a warm climate with an average annual temperature of 82°F (28°C). Winters average 77°F in January while summers reach 83°F in July / relatively mild seasonal variation. The area gets 336 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 56.0 inches (wetter than the 38-inch national average). The city sits at an elevation of 49 feet.
Temperature
77°F Jan (25°C)
83°F Jul (29°C)
| Annual Average | 82.2°F |
| 52% above US avg | |
| January Average | 77°F (25°C) |
| July Average | 83°F (29°C) |
| Sunny Days | 336 days/yr |
Geography
| Elevation | 49 ft (15 m) |
| Area | 307.9 sq mi (797.5 km²) |
| Population Density | 0/sq mi |
| Coordinates | 14.6199°N, 100.1448°W |
| Timezone | Asia/Bangkok |
Precipitation & Snow
Air Quality
Earthquake History
2 earthquakes (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 | 108 km | 10 km |
| May 28, 1990 | 65 km ESE of Sangkhla Buri, Thailand | M4.1 | 129 km | 33 km |
Source: USGS Earthquake Catalog (M2.5+, 1990–2025). Sorted by magnitude.
Monthly Weather
| Month | Avg Temperature | Precipitation | Summary |
|---|---|---|---|
| January | 77°F (25°C) | 0.2 in | Coldest, Driest |
| February | 81°F (27°C) | 0.4 in | |
| March | 85°F (29°C) | 0.9 in | |
| April | 87°F (31°C) | 2.3 in | Warmest |
| May | 85°F (30°C) | 4.8 in | |
| June | 84°F (29°C) | 3.3 in | |
| July | 83°F (29°C) | 3.7 in | |
| August | 83°F (28°C) | 4.6 in | |
| September | 82°F (28°C) | 8.4 in | Wettest |
| October | 82°F (28°C) | 7.0 in | |
| November | 80°F (27°C) | 1.6 in | |
| December | 77°F (25°C) | 0.2 in |
Si Prachan has a seasonal temperature swing of 10°F / from 77°F in January to 87°F in April. Total annual precipitation is 37.4 inches, with September being the wettest month (8.4") and January the driest (0.2").