14-day forecast — Koh Samui
Updated every hour
Tue · Today · 28 Jul
Showers
+29°
+28°
14,4 mm
Wed · Tomorrow · 29 Jul
Showers
+28°
+27°
9,8 mm
Thursday · 30 Jul
Showers
+29°
+27°
2,4 mm
Friday · 31 Jul
Showers
+28°
+28°
7,6 mm
Saturday · 1 Aug
Showers
+29°
+27°
4,0 mm
Sunday · 2 Aug
Partly cloudy
+29°
+28°
5,4 mm
Monday · 3 Aug
Showers
+29°
+28°
17,9 mm
Tuesday · 4 Aug
Partly cloudy
+29°
+28°
4,6 mm
Wednesday · 5 Aug
Partly cloudy
+30°
+28°
2,8 mm
Thursday · 6 Aug
Partly cloudy
+29°
+28°
3,8 mm
Friday · 7 Aug
Partly cloudy
+29°
+27°
6,2 mm
Saturday · 8 Aug
Showers
+29°
+27°
2,7 mm
Sunday · 9 Aug
Partly cloudy
+30°
+28°
13%
Monday · 10 Aug
Partly cloudy
+30°
+29°
0,3 mm
About Koh Samui
Île tropicale du golfe de Thaïlande, plages et chaleur moite.
CountryThailand
RegionGolfe de Thaïlande
ContinentAsia
Time zoneAsia/Bangkok (+07:00)
Latitude9.5120°
Longitude100.0136°
Air qualityFair (EAQI 28)
Climate in Koh Samui in January
Normals 8 years · best time to visit · Open-MeteoBest time to visit Koh Samui: January–December. With good weather, January is a recommended month to visit.
| December | January | February | |
|---|---|---|---|
| Average temperature | → 24°C | 24°C | → 24°C |
| Highest temperature | ▲ 25°C | 26°C | → 26°C |
| Lowest temperature | → 22°C | 22°C | → 22°C |
| Sea temperature | ▲ 28,5°C | 28,6°C | ▲ 29,4°C |
| Precipitation | ▼ 194 mm | 87 mm | ▼ 67 mm |
| Days with precipitation | ▼ 19 d | 18 d | ▼ 15 d |
| Humidity | ▼ 81% | 77% | ▼ 76% |
| Sunshine hours per day | ▲ 9,7 h | 10,4 h | ▲ 10,7 h |
| Cloud cover | ▼ 17% | 10% | → 10% |
| UV index (midday) | → 9 | 9 | ▲ 10 |
| Day length | 11:35 | 11:38 | 11:49 |
| Our rating | Good | Good | Good |
Temperature day by day in January mean + moving average
Precipitation day by day in January mm
UV index day by day in January midday value, clear-sky
Climate normals calculated from Open-Meteo (ERA5 archive 8 years, sea temperature Marine API). UV estimated from solar elevation.
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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 +26°, light rain, vent 37 km/h. Sur les 7 prochains jours, les températures varient de 27 à 29 °C avec 1 belle journée et 61 mm de pluie. Heure locale (fuseau Asia/Bangkok). Données Open-Meteo et WeatherAPI.