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Koh Samet

Koh Samet 1
Travel guide
1
Travel guide

Best time to visit Koh Samet

Data source:Meteostat
Last updated:2025-09

Weather in Koh Samet throughout the year

  • 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.

Weather in Koh Samet

Annual average temperature: approx. 28°C / Annual rainfall: approx. 486 mm / Summer humidity: 60%–70% / Rainiest month: October

Koh Samet weather by month

Month
Temperature (°C)
Rainfall (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

7-day weather forecast for Koh Samet

11/5
Thursday
Patchy rain nearby
29.5°C/27.5°C
11/6
Friday
Partly Cloudy
29°C/26.7°C
11/7
Saturday
Patchy rain nearby
29.1°C/26.4°C
11/8
Sunday
Patchy rain nearby
29.6°C/26.5°C
11/9
Monday
Patchy rain nearby
30.6°C/26.4°C
11/10
Tuesday
Partly Cloudy
29.3°C/26°C
11/11
Wednesday
Partly Cloudy
28.3°C/24.1°C