Ko Samui is an island located in the Gulf of Siam, in the south-eastern part of Thailand at about 9 degrees north of the equator. The island has a tropical monsoon climate, characterized by stable temperatures in all seasons with variations of a few degrees between the coldest and the warmest, and that can be divided into a rainy season and a dry season.
The short dry season runs from February to April, while the wettest months are between October and December, during the rest of the year rains fall every day, but only for a few tens of minutes, on average, on the island falling almost 2,000 mm of rain per year.
The climate is hot and humid, the average maximum temperatures vary between 29°C and 32°C, while the average minimum temperatures vary between 24°C and 26°C.
The temperature of the sea water is excellent for swimming all year round.
WHEN TO GO TO KO SAMUI
The best time for a trip to Ko Samui are the driest months between February and April, but the months between January and September are also good, considering that at this time it rains usually only for a few tens of minutes each day.
– Ko Samui
KO SAMUI CLIMATIC TABLES
|KO SAMUI (3 metres)|
|Month||Average low (°C)||Average high (°C)||Precip. (mm)||Precip. days|
|Month||Sea Water Temperature °C|