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Weather & Climate in Sai Yok, Thailand
Temperature, precipitation, air quality, natural hazards, and monthly weather data.
Sai Yok has a warm climate with an average annual temperature of 82°F (28°C). Winters average 79°F in January while summers reach 83°F in July / relatively mild seasonal variation. The area gets 265 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 42.5 inches. The city sits at an elevation of 190 feet.
Temperature
79°F Jan (26°C)
83°F Jul (28°C)
| Annual Average | 82.3°F |
| 52% above US avg | |
| January Average | 79°F (26°C) |
| July Average | 83°F (28°C) |
| Sunny Days | 265 days/yr |
Geography
| Elevation | 190 ft (58 m) |
| Area | 309.0 sq mi (800.3 km²) |
| Population Density | 0/sq mi |
| Coordinates | 14.1190°N, 99.1420°W |
| Timezone | Asia/Bangkok |
Precipitation & Snow
Air Quality
Earthquake History
3 earthquakes (M2.5+) recorded within 150 km since 1990. Strongest on record: M4.4.
| Jul 14, 2015 | 4 km SSE of Sangkhla Buri, Thailand | M4.4 | 132 km | 14 km |
| Nov 3, 1990 | 67 km NNW of Bo Phloi, Thailand | M4.2 | 80 km | 10 km |
| May 28, 1990 | 65 km ESE of Sangkhla Buri, Thailand | M4.1 | 82 km | 33 km |
Source: USGS Earthquake Catalog (M2.5+, 1990–2025). Sorted by magnitude.
Monthly Weather
| Month | Avg Temperature | Precipitation | Summary |
|---|---|---|---|
| January | 79°F (26°C) | 0.2 in | Driest |
| February | 83°F (28°C) | 0.5 in | |
| March | 85°F (30°C) | 1.3 in | |
| April | 87°F (31°C) | 2.7 in | Warmest |
| May | 85°F (29°C) | 5.3 in | |
| June | 83°F (28°C) | 4.0 in | |
| July | 83°F (28°C) | 4.8 in | |
| August | 82°F (28°C) | 4.9 in | |
| September | 82°F (28°C) | 8.7 in | |
| October | 81°F (27°C) | 8.8 in | Wettest |
| November | 80°F (26°C) | 2.1 in | |
| December | 77°F (25°C) | 0.2 in | Coldest |
Sai Yok has a seasonal temperature swing of 10°F / from 77°F in December to 87°F in April. Total annual precipitation is 43.5 inches, with October being the wettest month (8.8") and January the driest (0.2").