Weather

Weather now in Koh Samui

Updated: Oct 13, 11:42 Thailand time

27° 🌦️

Light drizzle. Feels like 30°C.

Humidity
73%
Cloud cover
98%
Wind
12 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
13 Oct
🌦️
27° 23°
Rain: 96% · 5.1 mm
14 Oct
🌦️
27° 22°
Rain: 92% · 7.4 mm
15 Oct
🌧️
27° 23°
Rain: 96% · 6 mm
16 Oct
🌦️
28° 24°
Rain: 95% · 4.4 mm
17 Oct
🌦️
27° 23°
Rain: 99% · 11.2 mm
18 Oct
🌦️
27° 23°
Rain: 98% · 6.5 mm
19 Oct
🌧️
26° 21°
Rain: 96% · 11.8 mm
20 Oct
🌦️
26° 22°
Rain: 86% · 10.8 mm
21 Oct
🌦️
26° 23°
Rain: 83% · 8.4 mm
22 Oct
🌦️
26° 23°
Rain: 90% · 5.4 mm
23 Oct
🌧️
26° 23°
Rain: 94% · 15 mm
24 Oct
🌧️
25° 22°
Rain: 90% · 12.8 mm
25 Oct
🌦️
24° 22°
Rain: 87% · 27.8 mm
26 Oct
🌦️
24° 22°
Rain: 75% · 27.6 mm
27 Oct
🌦️
26° 22°
Rain: 65% · 11.2 mm
28 Oct
🌦️
26° 25°
Rain: 84% · 16.8 mm

Seasonal travel notes for Koh Samui

Current season
Rainier period
Most popular travel months
January to April

Rain can be heavier during this period, but it can still work well for flexible trips, quieter travel and better-value stays.

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 2025-10-13 to 2025-10-28. Updated: Oct 13, 11:42 Thailand time.

Sun
Mon
Tue
Wed
Thu
Fri
Sat
13 Oct
🌧️
29° 23°
Rain: 4.2 mm · Wind: 8 km/h
14 Oct
🌧️
27° 22°
Rain: 8.5 mm · Wind: 9 km/h
15 Oct
🌦️
28° 23°
Rain: 1.6 mm · Wind: 11 km/h
16 Oct
🌦️
28° 25°
Rain: 1.2 mm · Wind: 21 km/h
17 Oct
🌧️
27° 22°
Rain: 24.7 mm · Wind: 16 km/h
18 Oct
🌧️
27° 21°
Rain: 15.3 mm · Wind: 18 km/h
19 Oct
🌦️
27° 22°
Rain: 2.4 mm · Wind: 12 km/h
20 Oct
🌧️
27° 23°
Rain: 3.9 mm · Wind: 8 km/h
21 Oct
🌧️
27° 23°
Rain: 1.9 mm · Wind: 13 km/h
22 Oct
🌧️
24° 22°
Rain: 15.5 mm · Wind: 13 km/h
23 Oct
🌧️
26° 23°
Rain: 13.7 mm · Wind: 19 km/h
24 Oct
🌧️
24° 22°
Rain: 11.1 mm · Wind: 16 km/h
25 Oct
🌧️
23° 22°
Rain: 36 mm · Wind: 10 km/h
26 Oct
🌧️
25° 22°
Rain: 15.2 mm · Wind: 13 km/h
27 Oct
🌧️
26° 23°
Rain: 4.6 mm · Wind: 20 km/h
28 Oct
🌧️
27° 22°
Rain: 16.4 mm · Wind: 17 km/h

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