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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
Hot
🌧️
Rainy
Temperature, wind, and humidity right now:
🌦
+86°F
Temperature now
+77°F
Min.
+87°F
Max.
10 m/s
Wind now
0 m/s
Min.
25 m/s
Max.
72%
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:
Tue, 08 September
🌦
+86°F
Rain
10 m/s
72 %
Wed, 09 September
🌦
+84°F
Rain
8 m/s
74 %
Thu, 10 September
🌦
+79°F
Rain
10 m/s
74 %
Fri, 11 September
🌦
+79°F
Rain
9 m/s
73 %
Sat, 12 September
🌦
+75°F
Rain
8 m/s
82 %
Sun, 13 September
🌦
+77°F
Rain
8 m/s
78 %
Mon, 14 September
🌦
+75°F
Rain
9 m/s
81 %
Tue, 15 September
🌦
+75°F
Rain
12 m/s
86 %
Wed, 16 September
🌦
+79°F
Rain
11 m/s
75 %
Thu, 17 September
🌦
+79°F
Rain
14 m/s
75 %
Fri, 18 September
🌦
+77°F
Rain
10 m/s
78 %
Sat, 19 September
🌦
+79°F
Rain
6 m/s
70 %
Sun, 20 September
🌦
+79°F
Rain
5 m/s
72 %
Mon, 21 September
🌦
+77°F
Rain
8 m/s
78 %
Tue, 22 September
🌦
+75°F
Rain
12 m/s
88 %
Wed, 23 September
🌦
+75°F
Rain
11 m/s
83 %

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