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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:
🌦
+27°C
Temperature now
+24°C
Min.
+28°C
Max.
7 m/s
Wind now
0 m/s
Min.
9 m/s
Max.
75%
Humidity now
50%
Min.
98%
Max.

Weather in Ko Samui for the upcoming 16 days

Here’s how the weather in Ko Samui looks currently:
Thu, 11 September
🌦
+27°C
Rain
7 m/s
75 %
Fri, 12 September
🌦
+25°C
Rain
7 m/s
77 %
Sat, 13 September
🌦
+25°C
Rain
7 m/s
77 %
Sun, 14 September
🌦
+25°C
Rain
7 m/s
73 %
Mon, 15 September
🌦
+26°C
Rain
6 m/s
73 %
Tue, 16 September
🌦
+26°C
Rain
3 m/s
71 %
Wed, 17 September
🌦
+25°C
Rain
7 m/s
77 %
Thu, 18 September
🌦
+25°C
Rain
5 m/s
69 %
Fri, 19 September
🌦
+25°C
Rain
5 m/s
71 %
Sat, 20 September
🌦
+25°C
Rain
6 m/s
73 %
Sun, 21 September
🌦
+26°C
Rain
4 m/s
73 %
Mon, 22 September
🌦
+25°C
Rain
4 m/s
73 %
Tue, 23 September
🌦
+25°C
Rain
3 m/s
75 %
Wed, 24 September
🌦
+25°C
Rain
6 m/s
73 %
Thu, 25 September
🌦
+25°C
Rain
8 m/s
73 %
Fri, 26 September
🌦
+25°C
Rain
9 m/s
74 %

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