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Smarter Travel Planning

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.
Check flight prices to Ko Samui on Avionero:
Dates, flexibility, days away

Weather in Ko Samui today

Good Weather
Warm
🌧️
Rainy
Temperature, wind, and humidity right now:
🌦
+26°C
Temperature now
+25°C
Min.
+28°C
Max.
11 m/s
Wind now
0 m/s
Min.
13 m/s
Max.
70%
Humidity now
50%
Min.
100%
Max.

Weather in Ko Samui for the upcoming 16 days

Here’s how the weather in Ko Samui looks currently:
Wed, 19 August
🌦
+26°C
Rain
11 m/s
70 %
Thu, 20 August
🌦
+27°C
Rain
12 m/s
66 %
Fri, 21 August
🌦
+27°C
Rain
13 m/s
72 %
Sat, 22 August
☁️
+26°C
Broken clouds
10 m/s
74 %
Sun, 23 August
🌦
+27°C
Rain
9 m/s
71 %
Mon, 24 August
🌦
+27°C
Rain
10 m/s
68 %
Tue, 25 August
🌦
+26°C
Rain
9 m/s
72 %
Wed, 26 August
☁️
+26°C
Broken clouds
11 m/s
72 %
Thu, 27 August
☁️
+27°C
Broken clouds
10 m/s
67 %
Fri, 28 August
🌦
+27°C
Rain
11 m/s
69 %
Sat, 29 August
🌦
+27°C
Rain
12 m/s
72 %
Sun, 30 August
🌦
+26°C
Rain
12 m/s
72 %
Mon, 31 August
🌦
+26°C
Rain
15 m/s
73 %
Tue, 01 September
🌦
+26°C
Rain
12 m/s
73 %
Wed, 02 September
🌦
+26°C
Rain
10 m/s
70 %
Thu, 03 September
🌦
+27°C
Rain
7 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