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Koh Samet

Koh Samet 1
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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 28.6–29.9°C, 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 28.9–29.8°C, 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 27.6–28.4°C. 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 26.5–27.5°C, 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. 28°C / Annual rainfall: approx. 486 mm / Summer humidity: 60%–70% / Rainiest month: October

Koh Samet monthly average temperature and precipitation

Month
Air temperature (°C)
Precipitation (mm)
January
26.5°C
0
February
27.5°C
48.5
March
28.6°C
24.9
April
29.9°C
7.5
May
29.9°C
145.2
June
29.8°C
0
July
28.9°C
0
August
29.1°C
0
September
28.4°C
0
October
27.8°C
230
November
27.6°C
28.4
December
26.8°C
2

Koh Samet weather for the next seven days

12/19
Friday
Sunny
29.5°C/24.7°C
12/20
Saturday
Sunny
29.6°C/24.5°C
12/21
Sunday
Sunny
30.3°C/24.4°C
12/22
Monday
Sunny
29.7°C/24.2°C
12/23
Tuesday
Patchy rain nearby
29.7°C/24.9°C
12/24
Wednesday
Sunny
29.2°C/24.6°C
12/25
Thursday
Sunny
29.4°C/24.5°C