14-day forecast — Koh Samui Updated every hour
Tue · Today · 28 Jul
Showers
+29°
+28°
15,9 mm
Wed · Tomorrow · 29 Jul
Showers
+28°
+27°
10,5 mm
Thursday · 30 Jul
Showers
+29°
+27°
3,3 mm
Friday · 31 Jul
Showers
+29°
+27°
4,4 mm
Saturday · 1 Aug
Showers
+29°
+28°
2,9 mm
Sunday · 2 Aug
Partly cloudy
+30°
+28°
1,7 mm
Monday · 3 Aug
Partly cloudy
+30°
+28°
3,4 mm
Tuesday · 4 Aug
Partly cloudy
+30°
+28°
2,1 mm
Wednesday · 5 Aug
Partly cloudy
+30°
+28°
3,6 mm
Thursday · 6 Aug
Showers
+30°
+28°
3,1 mm
Friday · 7 Aug
Partly cloudy
+30°
+28°
1,4 mm
Saturday · 8 Aug
Partly cloudy
+30°
+28°
2,4 mm
Sunday · 9 Aug
Partly cloudy
+31°
+28°
1,0 mm
Monday · 10 Aug
Partly cloudy
+31°
+29°
8%
About Koh Samui
Île tropicale du golfe de Thaïlande, plages et chaleur moite.
Country Thailand
Region Golfe de Thaïlande
Continent Asia
Time zone Asia/Bangkok (+07:00)
Latitude 9.5120°
Longitude 100.0136°
Air quality Fair (EAQI 24)
Climate in Koh Samui in March
Normals 8 years · best time to visit · Open-Meteo
Best time to visit Koh Samui : January–December . With perfect weather, March is a recommended month to visit.
Photo: Wikimedia
February
March
April
Average temperature
▲ 24°C
25°C
▲ 26°C
Highest temperature
▲ 26°C
28°C
▲ 29°C
Lowest temperature
▲ 22°C
23°C
▲ 24°C
Sea temperature
▲ 29,4°C
30,1°C
▲ 31,5°C
Precipitation
▼ 67 mm
41 mm
▲ 97 mm
Days with precipitation
▼ 15 d
11 d
▲ 16 d
Humidity
▼ 76%
75%
▼ 74%
Sunshine hours per day
▲ 10,7 h
11,0 h
▼ 10,9 h
Cloud cover
▼ 10%
9%
▲ 12%
UV index (midday)
▲ 10
11
▲ 12
Day length
11:49
12:04
12:20
Our rating
Good
Perfect
Good
Temperature day by day in March mean + moving average
23° 24° 25° 26° 27° 1 6 11 16 21 26 31
Precipitation day by day in March mm
0 2.8 5.6 1 6 11 16 21 26 31
UV index day by day in March midday value, clear-sky
0 6 12 1 6 11 16 21 26 31
Climate normals calculated from Open-Meteo (ERA5 archive 8 years, sea temperature Marine API). UV estimated from solar elevation.
Other destinations in Asia
Data source
Global weather models — international forecasts
Météo de Koh Samui (Thailand) : conditions actuelles et prévisions à 24 h et 14 jours pour préparer votre voyage. Sur place actuellement, il fait +27°, partly cloudy, vent 31 km/h. Sur les 7 prochains jours, les températures varient de 27 à 30 °C avec 2 belles journées et 42 mm de pluie. Heure locale (fuseau Asia/Bangkok). Données Open-Meteo et WeatherAPI.