Similan Islands
The Similan Islands are an archipelago in Thailand. This destination is one of the 36 sights listed for the country on this site and is the 14th most looked-up sight in Thailand on English Wikipedia.
Planning a visit
The best time to visit is between January and March when rainfall is lowest, ranging from about 26 mm to 77 mm. From February to October, the islands experience significant rain, with some months seeing up to 463 mm and approximately 30 rainy days. Average temperatures throughout the year stay between 27 °C and 28 °C.
Phuket International Airport (HKT) is the nearest airport, located about 96 km away. The islands are about 648 km from Bangkok.
Weather by month
Temperatures stay much the same all year, around 27 °C on average. The wettest is September, with about 463 mm of rain.
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Average temperature, °C | 27 | 27 | 28 | 28 | 28 | 28 | 27 | 27 | 27 | 27 | 27 | 27 |
| Rainfall, mm | 31 | 26 | 77 | 148 | 374 | 338 | 339 | 394 | 463 | 388 | 208 | 57 |
| Rainy days | 14 | 9 | 12 | 22 | 30 | 28 | 30 | 30 | 29 | 29 | 28 | 21 |
Temperatures and rainfall: 1981–2010 averages for this spot (4 km grid), from CHELSA. Rainy days: 2015–2024, NASA POWER.
