It was convenient that I could book the port transfer and speedboat reservation all at once. Although I had lunch separately, I was able to use the facilities at my destination, Thongsak Resort, just as planned. I was able to travel with peace of mind without worrying about the return trip. I would like to use this service again.
Anonymous User
Couple
Koh Samet Weather, Climate and Best Time to Visit
Data source:Meteostat Update date:2025-09
Koh Samet year round climate
Spring (March–May): Average 83–85°F, hot climate. March and April are relatively dry, while May sees more rainfall. Common activities: Swimming, sunbathing, snorkeling. Recommended clothing: Light and breathable clothing, swimwear, sun hat, sunglasses.
Summer (June–August): Average 84–85°F, hot and dry climate with abundant sunshine. Common activities: Swimming, water sports, exploring the island. Recommended clothing: Light and breathable clothing, swimwear, sun hat, sunglasses.
Autumn (September–November): Average 81–83°F. October has heavier rainfall, while other months are drier. Common activities: Swimming, diving, but be aware of potential rain in October. Recommended clothing: Light and breathable clothing, and rain gear for October.
Winter (December–February): Average 79–81°F, warm and comfortable climate, dry with little rain. Common activities: Swimming, snorkeling, enjoying the beach. Recommended clothing: Light clothing, a light jacket may be needed in the mornings and evenings.
Koh Samet climatological average
Annual average temperature: approx. 82.4°F / Annual rainfall: approx. 486 mm / Summer humidity: 60%–70% / Rainiest month: October
Koh Samet monthly average temperature and precipitation
Month
Air temperature (°F)
Precipitation (mm)
January
79.7°F
0
February
81.5°F
48.5
March
83.5°F
24.9
April
85.8°F
7.5
May
85.8°F
145.2
June
85.6°F
0
July
84°F
0
August
84.4°F
0
September
83.1°F
0
October
82°F
230
November
81.7°F
28.4
December
80.2°F
2
Koh Samet weather for the next seven days
6/22
Monday
Patchy rain nearby
88°F/81.4°F
6/23
Tuesday
Patchy rain nearby
86.5°F/82.3°F
6/24
Wednesday
Patchy rain nearby
86°F/82.1°F
6/25
Thursday
Patchy rain nearby
86.3°F/82.1°F
6/26
Friday
Patchy rain nearby
85.7°F/82.9°F
6/27
Saturday
Patchy rain nearby
85.7°F/82.8°F
6/28
Sunday
Patchy rain nearby
86.7°F/82.4°F
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