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Weather & Climate in Rayong, Thailand
Temperature, precipitation, air quality, natural hazards, and monthly weather data.
Rayong has a warm climate with an average annual temperature of 82°F (28°C). Winters average 80°F in January while summers reach 83°F in July / relatively mild seasonal variation. The area gets 235 sunny days per year, above the national average. Annual precipitation totals 55.9 inches (wetter than the 38-inch national average). The city sits at an elevation of 23 feet.
Temperature
80°F Jan (26°C)
83°F Jul (29°C)
| Annual Average | 82.2°F |
| 52% above US avg | |
| January Average | 80°F (26°C) |
| July Average | 83°F (29°C) |
| Sunny Days | 235 days/yr |
Geography
| Elevation | 23 ft (7 m) |
| Area | 6.5 sq mi (16.9 km²) |
| Population Density | 16,321/sq mi |
| Coordinates | 12.6810°N, 101.2580°W |
| Timezone | Asia/Bangkok |
Precipitation & Snow
Air Quality
Hurricane History
2 hurricanes (Category 1+) recorded within 500 km since 1980. Strongest on record: Category 3.
| Year | Name | Category | Max Wind | Closest |
| 1997 | Linda | Category 1 | 52 mph | 189 km |
| 1989 | Gay | Category 3 | 132 mph | 270 km |
Source: NOAA IBTrACS (Category 1+, 1980–2026).
Monthly Weather
| Month | Avg Temperature | Precipitation | Summary |
|---|---|---|---|
| January | 80°F (26°C) | 0.8 in | |
| February | 81°F (27°C) | 1.1 in | |
| March | 83°F (29°C) | 2.4 in | |
| April | 85°F (30°C) | 3.6 in | Warmest |
| May | 85°F (29°C) | 7.6 in | |
| June | 84°F (29°C) | 6.1 in | |
| July | 83°F (29°C) | 5.9 in | |
| August | 83°F (28°C) | 5.7 in | |
| September | 82°F (28°C) | 10.0 in | Wettest |
| October | 81°F (27°C) | 9.6 in | |
| November | 80°F (27°C) | 2.6 in | |
| December | 79°F (26°C) | 0.4 in | Coldest, Driest |
Rayong has a seasonal temperature swing of 6°F / from 79°F in December to 85°F in April. Total annual precipitation is 55.9 inches, with September being the wettest month (10.0") and December the driest (0.4").