Weather

Weather now in Koh Samui

Updated: Jun 4, 00:49 Thailand time

23°

Partly cloudy. Feels like 25°C.

Humidity
90%
Cloud cover
79%
Wind
20 km/h
Rain now
0 mm

16-day weather calendar

Forecast-style calendar based on available API data.

Sun
Mon
Tue
Wed
Thu
Fri
Sat
4 Jun
🌦️
28° 23°
Rain: 94% · 4.3 mm
5 Jun
🌦️
29° 23°
Rain: 86% · 1.7 mm
6 Jun
🌦️
29° 24°
Rain: 76% · 1.8 mm
7 Jun
🌦️
30° 24°
Rain: 63% · 3.1 mm
8 Jun
🌧️
30° 24°
Rain: 63% · 10.5 mm
9 Jun
☁️
28° 23°
Rain: 51% · 0 mm
10 Jun
🌧️
30° 25°
Rain: 45% · 4.6 mm
11 Jun
🌧️
29° 23°
Rain: 55% · 8.6 mm
12 Jun
🌦️
30° 24°
Rain: 55% · 0.6 mm
13 Jun
🌦️
29° 24°
Rain: 57% · 1.2 mm
14 Jun
🌦️
29° 24°
Rain: 49% · 2.4 mm
15 Jun
🌧️
29° 23°
Rain: 57% · 7.2 mm
16 Jun
🌦️
29° 24°
Rain: 67% · 0.6 mm
17 Jun
🌦️
30° 25°
Rain: 47% · 0.6 mm
18 Jun
🌦️
27° 25°
Rain: 51% · 0.3 mm
19 Jun
☀️
Rain: 48%

Seasonal travel notes for Koh Samui

Current season
Mixed season
Most popular travel months
January to April

Weather can vary, but that does not make it a bad time to visit. Plan with flexibility and keep backup indoor or short-distance options.

Thailand has no bad seasons — only different travel styles. Koh Samui has a different weather pattern from Phuket, so planning by region matters.

Same period last year in Koh Samui

Historical weather from 2025-06-03 to 2025-06-18. Updated: Jun 4, 00:49 Thailand time.

Sun
Mon
Tue
Wed
Thu
Fri
Sat
3 Jun
🌦️
29° 25°
Rain: 1.8 mm · Wind: 17 km/h
4 Jun
🌧️
29° 24°
Rain: 6 mm · Wind: 21 km/h
5 Jun
🌦️
29° 24°
Rain: 0.6 mm · Wind: 20 km/h
6 Jun
🌦️
29° 24°
Rain: 1.4 mm · Wind: 19 km/h
7 Jun
🌧️
28° 23°
Rain: 2.8 mm · Wind: 23 km/h
8 Jun
🌧️
29° 23°
Rain: 4.2 mm · Wind: 23 km/h
9 Jun
🌧️
28° 23°
Rain: 4.2 mm · Wind: 22 km/h
10 Jun
🌧️
27° 24°
Rain: 2.8 mm · Wind: 25 km/h
11 Jun
🌦️
29° 25°
Rain: 0.1 mm · Wind: 19 km/h
12 Jun
🌦️
28° 24°
Rain: 1.4 mm · Wind: 23 km/h
13 Jun
☁️
30° 24°
Rain: 0 mm · Wind: 17 km/h
14 Jun
🌦️
31° 24°
Rain: 0.6 mm · Wind: 15 km/h
15 Jun
🌦️
31° 24°
Rain: 0.4 mm · Wind: 11 km/h
16 Jun
🌦️
31° 25°
Rain: 0.5 mm · Wind: 11 km/h
17 Jun
🌦️
31° 24°
Rain: 0.7 mm · Wind: 21 km/h
18 Jun
🌦️
30° 24°
Rain: 1.6 mm · Wind: 17 km/h

Historical values are based on archived weather datasets and may differ from observations at a specific local station.