Ko Samet เกาะ เสม็ด
Rayong, Thailand
Ko Samet is an island in the Rayong area of Thailand. It is one of the most looked-up sights in the country on English Wikipedia.
Planning a visit
The best time to visit is between December and February, when rainfall is at its lowest, with only about 6 mm to 32 mm of rain. During these months, daily highs range from 28 °C to 29 °C. From May to October, the island experiences significantly more rain, often seeing around 30 rainy days per month, with September being the wettest month at 269 mm of rain. Temperatures remain between 24 °C and 30 °C throughout the year.
Travelers can reach the island via U-Tapao–Rayong–Pattaya International Airport, which is 50 km away. Ko Samet is located 166 km from Bangkok.
Weather by month
The warmest month is April, with an average high of 30 °C. The wettest is September, with about 269 mm of rain.
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Average high, °C | 28 | 29 | 29 | 30 | 30 | 29 | 29 | 29 | 29 | 29 | 29 | 29 |
| Average low, °C | 24 | 25 | 26 | 27 | 27 | 27 | 26 | 26 | 26 | 25 | 25 | 24 |
| Rainfall, mm | 20 | 32 | 66 | 83 | 228 | 204 | 194 | 161 | 269 | 212 | 58 | 6 |
| Rainy days | 8 | 6 | 14 | 16 | 28 | 29 | 30 | 31 | 30 | 28 | 20 | 9 |
Temperatures and rainfall: 1981–2010 averages for this spot (4 km grid), from CHELSA. Rainy days: 2015–2024, NASA POWER.
