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.
CountryThailand
RegionGolfe de Thaïlande
ContinentAsia
Time zoneAsia/Bangkok (+07:00)
Latitude9.5120°
Longitude100.0136°
Air qualityFair (EAQI 26)
Climate in Koh Samui in July
Normals 8 years · best time to visit · Open-MeteoBest time to visit Koh Samui: January–December. With good weather, July is a recommended month to visit.
| June | July | August | |
|---|---|---|---|
| Average temperature | → 26°C | 26°C | → 26°C |
| Highest temperature | → 29°C | 29°C | → 29°C |
| Lowest temperature | → 24°C | 24°C | ▼ 23°C |
| Sea temperature | ▼ 31,0°C | 30,7°C | ▲ 30,9°C |
| Precipitation | ▲ 77 mm | 96 mm | ▼ 92 mm |
| Days with precipitation | ▲ 17 d | 18 d | ▲ 19 d |
| Humidity | ▲ 75% | 77% | ▲ 79% |
| Sunshine hours per day | ▼ 9,9 h | 9,1 h | ▲ 9,4 h |
| Cloud cover | ▲ 22% | 28% | ▼ 24% |
| UV index (midday) | ▲ 11 | 12 | → 12 |
| Day length | 12:40 | 12:37 | 12:26 |
| Our rating | Good | Good | Good |
Temperature day by day in July mean + moving average
Precipitation day by day in July mm
UV index day by day in July 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 +27°, partly cloudy, vent 34 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.