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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:
🌦
+83°F
Temperature now
+77°F
Min.
+86°F
Max.
4 m/s
Wind now
0 m/s
Min.
9 m/s
Max.
79%
Humidity now
14%
Min.
95%
Max.

Weather in Ko Samui for the upcoming 16 days

Here’s how the weather in Ko Samui looks currently:
Sat, 02 August
🌦
+82°F
Rain
4 m/s
79 %
Sun, 03 August
🌦
+79°F
Rain
5 m/s
73 %
Mon, 04 August
🌦
+79°F
Rain
6 m/s
77 %
Tue, 05 August
🌦
+79°F
Rain
7 m/s
74 %
Wed, 06 August
🌦
+79°F
Rain
7 m/s
72 %
Thu, 07 August
🌦
+79°F
Rain
3 m/s
71 %
Fri, 08 August
🌦
+77°F
Rain
9 m/s
80 %
Sat, 09 August
🌦
+77°F
Rain
9 m/s
74 %
Sun, 10 August
☁️
+77°F
Broken clouds
9 m/s
72 %
Mon, 11 August
🌦
+77°F
Rain
7 m/s
75 %
Tue, 12 August
🌦
+77°F
Rain
9 m/s
75 %
Wed, 13 August
🌦
+75°F
Rain
10 m/s
85 %
Thu, 14 August
🌦
+75°F
Rain
11 m/s
79 %
Fri, 15 August
🌦
+77°F
Rain
13 m/s
76 %
Sat, 16 August
🌦
+79°F
Rain
10 m/s
70 %
Sun, 17 August
🌦
+77°F
Rain
8 m/s
76 %

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 +81°F, with the lowest average of +77°F in January and the highest average of +82°F in May

Other cities in Thailand

Check out the weather for other cities in Thailand.

Monthly weather in Ko Samui