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Weather in Ko Samui

Discover today’s weather in Ko Samui and see if now is a good time to travel with our 16 day forecast.
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Weather in Ko Samui today

Good Weather
Warm
🌧️
Rainy
Temperature, wind, and humidity right now:
🌦
+25°C
Temperature now
+23°C
Min.
+26°C
Max.
6 m/s
Wind now
0 m/s
Min.
12 m/s
Max.
74%
Humidity now
54%
Min.
100%
Max.

Weather in Ko Samui for the upcoming 16 days

Here’s how the weather in Ko Samui looks currently:
Today, 19 December
🌦
+25°C
Rain
6 m/s
74 %
Sat, 20 December
☁️
+24°C
Scattered clouds
3 m/s
69 %
Sun, 21 December
☁️
+25°C
Broken clouds
6 m/s
71 %
Mon, 22 December
☁️
+25°C
Broken clouds
6 m/s
73 %
Tue, 23 December
☁️
+25°C
Broken clouds
4 m/s
67 %
Wed, 24 December
🌦
+24°C
Rain
4 m/s
75 %
Thu, 25 December
☁️
+25°C
Broken clouds
4 m/s
71 %
Fri, 26 December
☁️
+25°C
Scattered clouds
4 m/s
69 %
Sat, 27 December
☁️
+25°C
Broken clouds
4 m/s
70 %
Sun, 28 December
☁️
+24°C
Broken clouds
4 m/s
70 %
Mon, 29 December
🌦
+25°C
Rain
6 m/s
70 %
Tue, 30 December
🌦
+24°C
Rain
9 m/s
75 %
Wed, 31 December
🌦
+24°C
Rain
6 m/s
67 %
Thu, 01 January
🌦
+24°C
Rain
5 m/s
68 %
Fri, 02 January
☁️
+24°C
Broken clouds
5 m/s
67 %
Sat, 03 January
☁️
+24°C
Scattered clouds
4 m/s
70 %

Weather in Ko Samui year round

Weather by month. Click on a month to see full weather information.
The average temperature during the whole year is around +27°C, with the lowest average of +25°C in January and the highest average of +28°C in May

Other cities in Thailand

Check out the weather for other cities in Thailand.

Monthly weather in Ko Samui