14-day forecast — Koh Samui
Updated every hour
Sat · Today · 13 Jun
Rain
+30°
+28°
15,2 mm
Sun · Tomorrow · 14 Jun
Showers
+30°
+28°
3,8 mm
Monday · 15 Jun
Showers
+30°
+28°
1,3 mm
Tuesday · 16 Jun
Showers
+30°
+29°
0,5 mm
Wednesday · 17 Jun
Showers
+30°
+29°
1,3 mm
Thursday · 18 Jun
Rain
+29°
+28°
6,6 mm
Friday · 19 Jun
Showers
+28°
+28°
0,5 mm
Saturday · 20 Jun
Partly cloudy
+28°
+28°
9%
Sunday · 21 Jun
Showers
+29°
+28°
0,8 mm
Monday · 22 Jun
Showers
+29°
+28°
1,3 mm
Tuesday · 23 Jun
Showers
+30°
+28°
1,8 mm
Wednesday · 24 Jun
Showers
+30°
+28°
1,3 mm
Thursday · 25 Jun
Showers
+30°
+28°
1,1 mm
Friday · 26 Jun
Showers
+30°
+28°
2,3 mm
About Koh Samui
Île tropicale du golfe de Thaïlande, plages et chaleur moite.
CountryThaïlande
RegionGolfe de Thaïlande
ContinentAsia
Time zoneAsia/Bangkok (+07:00)
Latitude9.5120°
Longitude100.0136°
Air qualityFair (EAQI 27)
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 (Thaïlande) : conditions actuelles et prévisions à 24 h et 14 jours pour préparer votre voyage. Sur place actuellement, il fait +29°, showers, vent 7 km/h. Sur les 7 prochains jours, les températures varient de 28 à 30 °C et 29 mm de pluie. Heure locale (fuseau Asia/Bangkok). Données Open-Meteo et WeatherAPI.