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Weather & Climate in Pho Si Suwan, Thailand
Temperature, precipitation, air quality, natural hazards, and monthly weather data.
Pho Si Suwan has a warm climate with an average annual temperature of 81°F (27°C). Winters average 72°F in January while summers reach 82°F in July / relatively mild seasonal variation. The area gets 330 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 62.6 inches (wetter than the 38-inch national average). The city sits at an elevation of 456 feet.
Temperature
72°F Jan (22°C)
82°F Jul (28°C)
| Annual Average | 80.5°F |
| 49% above US avg | |
| January Average | 72°F (22°C) |
| July Average | 82°F (28°C) |
| Sunny Days | 330 days/yr |
Geography
| Elevation | 456 ft (139 m) |
| Area | 14.2 sq mi (36.6 km²) |
| Population Density | 0/sq mi |
| Coordinates | 15.2293°N, 104.0767°W |
| Timezone | Asia/Bangkok |
Precipitation & Snow
Air Quality
Hurricane History
1 hurricane (Category 1+) recorded within 500 km since 1980. Strongest on record: Category 2.
| Year | Name | Category | Max Wind | Closest |
| 1985 | Cecil | Category 2 | 81 mph | 292 km |
Source: NOAA IBTrACS (Category 1+, 1980–2026).
Monthly Weather
| Month | Avg Temperature | Precipitation | Summary |
|---|---|---|---|
| January | 72°F (22°C) | 0.1 in | Coldest, Driest |
| February | 79°F (26°C) | 0.5 in | |
| March | 84°F (29°C) | 1.3 in | |
| April | 86°F (30°C) | 3.1 in | Warmest |
| May | 84°F (29°C) | 7.1 in | |
| June | 83°F (28°C) | 8.4 in | |
| July | 82°F (28°C) | 8.2 in | |
| August | 81°F (27°C) | 9.7 in | |
| September | 81°F (27°C) | 9.9 in | Wettest |
| October | 80°F (27°C) | 4.8 in | |
| November | 77°F (25°C) | 1.0 in | |
| December | 75°F (24°C) | 0.1 in |
Pho Si Suwan has a seasonal temperature swing of 14°F / from 72°F in January to 86°F in April. Total annual precipitation is 54.2 inches, with September being the wettest month (9.9") and January the driest (0.1").