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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:
🌦
+79°F
Temperature now
+77°F
Min.
+80°F
Max.
9 m/s
Wind now
0 m/s
Min.
10 m/s
Max.
76%
Humidity now
48%
Min.
100%
Max.

Weather in Ko Samui for the upcoming 16 days

Here’s how the weather in Ko Samui looks currently:
Sat, 12 July
🌦
+79°F
Rain
9 m/s
76 %
Sun, 13 July
🌦
+79°F
Rain
8 m/s
74 %
Mon, 14 July
🌦
+79°F
Rain
10 m/s
72 %
Tue, 15 July
🌦
+81°F
Rain
11 m/s
73 %
Wed, 16 July
🌦
+81°F
Rain
10 m/s
71 %
Thu, 17 July
🌦
+79°F
Rain
9 m/s
74 %
Fri, 18 July
🌦
+79°F
Rain
7 m/s
74 %
Sat, 19 July
☁️
+81°F
Broken clouds
12 m/s
72 %
Sun, 20 July
☁️
+82°F
Broken clouds
13 m/s
67 %
Mon, 21 July
🌦
+82°F
Rain
14 m/s
69 %
Tue, 22 July
🌦
+82°F
Rain
14 m/s
68 %
Wed, 23 July
🌦
+82°F
Rain
15 m/s
67 %
Thu, 24 July
🌦
+81°F
Rain
15 m/s
67 %
Fri, 25 July
🌦
+82°F
Rain
15 m/s
65 %
Sat, 26 July
🌦
+81°F
Rain
16 m/s
70 %
Sun, 27 July
☁️
+81°F
Broken clouds
15 m/s
69 %

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