There are only two snorkeling sessions, each lasting 30 minutes. Those who want to snorkel can go snorkeling, and those who want to stay on the boat to watch the sea won't have to wait too long. At 3 pm, each person is provided with a bento box and a boatload of fruit. My family was very satisfied. Water is provided on the boat from time to time, so there is no need to bring your own water or food. It's a very high-quality service!
Anonymous User
Family
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
3/22
Sunday
Patchy rain nearby
85.2°F/80.8°F
3/23
Monday
Patchy rain nearby
84.7°F/81.7°F
3/24
Tuesday
Patchy rain nearby
85°F/81.4°F
3/25
Wednesday
Patchy rain nearby
85.7°F/81.7°F
3/26
Thursday
Partly Cloudy
85.8°F/81.7°F
3/27
Friday
Partly Cloudy
86°F/81.9°F
3/28
Saturday
Partly Cloudy
86.6°F/82.5°F
KKday App
Your Best Travel Buddy
Use the code APP5OFF to enjoy an exclusive in-app deal of 5% off (cap at USD$3) on your 1st orderScan here to download the app