Weather today

The local weather in Koh Samui today

Thursday, 18 December 2025

The weather today in Koh Samui will be hot with temperatures reaching 27°C. During the evening and night time the temperatures will drop to 27°C.

For deep dive information check out our hourly weather forecast for today down the page.

Temperature
Temperature
27° / 27°
Chance of rain
Chance of rain
100
%
Wind
Wind
6
Km/h
Humidity
Humidity
76
%
Previous day
Next day
00:0003:0006:0009:0012:0015:0018:0021:00
Temperature27°C27°C27°C27°C27°C27°C27°C27°C
Weather Clear
Clear
Patchy rain possible
Patchy rain possible
Partly cloudy
Partly cloudy
Patchy rain possible
Patchy rain possible
Patchy rain possible
Patchy rain possible
Sunny
Sunny
Sunny
Sunny
Clear
Clear
Chance of rain0%100%0%100%85%0%0%0%
Precipitation0 mm0.2 mm0 mm0.1 mm0 mm0 mm0 mm0 mm
Humidity76%75%76%74%69%69%74%76%
Wind3Km/h6Km/h5Km/h6Km/h6Km/h3Km/h6Km/h1Km/h
Wind Gust5Km/h9Km/h7Km/h8Km/h8Km/h5Km/h8Km/h1Km/h
Wind Degree79°
Wind Degree
78°
Wind Degree
85°
Wind Degree
104°
Wind Degree
137°
Wind Degree
109°
Wind Degree
125°
Wind Degree
149°
Wind Degree
Wind DirectionENEENEEESESEESESESSE
Cloud Cover15%72%34%75%86%19%14%18%
UV Index000310500
Visibility10 Km9 Km10 Km10 Km10 Km10 Km10 Km10 Km
Check Koh Samui's weather in other day
Click on a day for an hourly weather forecast

The weather in Koh Samui today - FAQ

What is the weather today in Koh Samui?
The wather forecast for today in Koh Samui is mostly patchy rain possible.
What is today's highest and lowest temperature in Koh Samui?
The temperature today in Koh Samui will range between 27° and 27°.
Will it be raining today in Koh Samui?
The chance of rain today in Koh Samui is 100%.
Will it be windy today in Koh Samui?
The wind will blow between 1 Km/h to 6 Km/h today in Koh Samui.
How many hours of sunlight today in Koh Samui?
There will be 11 hours of sun today in Koh Samui.
What time is the sunrise and sunset today in Koh Samui?
The sun will rise at 06:29 and set at 18:04.

Sunrise and sunset time in Koh Samui today

What time is the sunset and sunrise in Koh Samui today? The sun will rise at 06:29 and will set at 18:04. There will be 11 hours of sunlight in Koh Samui.

Sunrise
Sunrise
06:29
Sunset
Sunset
18:04

Koh Samui today weather

Morning Patchy rain possible

The temperature in Koh Samui today in the early morning is 27°C.

If you take into account factors such as wind, humidity and other weather conditions, the temperatures can feel like 30°C.

The chance of rain in Koh Samui in the morning is 0%, and the wind will blow at 5km/h.

Noon Patchy rain possible

The temperature in Koh Samui today at noon time is 27°C and it will feel like 29°C. The humidity will be around 69% with wind speed of 6km/h.

Evening Sunny

The temperature in Koh Samui today's evening will get to 27°C.

The chance of rain in Koh Samui in the evening time is 0%, with wind speed of 3km/h.

Night Clear

The night temperature in Koh Samui today is 27°C with a wind speed of 1km/h.

Clothing recommendation for Koh Samui

Thursday, 18 December 2025
Umbrella
Umbrella
T-Shirt
T-Shirt
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