Ko Samui
10 day weather forecast for Ko Samui
Monday, 20th July 2026, at 23:34
today
29° 27°
tomorrow
30° 27°
Wednesday
30° 28°
Thursday
29° 27°
Friday
29° 26°
Saturday
28° 27°
Sunday
29° 27°
Seemore
Ko Samui Weather Pages
Ko Samui weather forecast
The weather forecast for Ko Samui over the next 5 days indicates warm conditions with temperatures ranging from 29 °C to 30 °C.
Rain is expected from Tuesday until Friday.
Wind speeds are expected to be strong, averaging around 24 km/h.
Ko Samui 14 days weather forecast
This weeks weather in Ko Samui. Click on a date for detailed forecasts
Mon. 20
29°
27°
0 mm
Tue. 21
30°
27°
0.1 mm
Wed. 22
30°
28°
1.1 mm
Thu. 23
29°
27°
3.8 mm
Fri. 24
29°
26°
6.3 mm
Sat. 25
28°
27°
9.9 mm
Sun. 26
29°
27°
4.2 mm
Mon. 27
30°
28°
1.8 mm
Tue. 28
30°
28°
1.6 mm
Wed. 29
30°
28°
4.3 mm
Thu. 30
29°
28°
5.6 mm
Fri. 31
29°
27°
8.2 mm
Sat. 1
28°
26°
7.7 mm
Sun. 2
27°
26°
32.3 mm
Further Ahead
You can click on date
Access Ko Samui weather forecasts with a simple click. Select any date for comprehensive insights on temperature, rainfall, and wind conditions.
Ko Samui long range weather forecast
30 day weather forecast for Ko Samui
Important Notice
Our Ko Samui long range weather forecast is based on historical data analysis rather than real-time forecasting models. While this provides a general outlook, weather conditions can change. We recommend checking the forecast closer to your planned date for the most current information.
Rain Forecast for the Next 14 Days in Ko Samui
The chart displays the expected rainfall values (in mm) over the next 14 days in Ko Samui, highlighting variations in precipitation levels for specific dates. ☔
Ko Samui Wind Speed Forecast Chart
This chart illustrates the projected daily max wind speed (in km) in Ko Samui over the next two weeks, providing insights into periods of increased or decreased wind activity. 🌀
Frequently asked questions about the weather in Ko Samui
How warm is it in Ko Samui over the next 14 days?
Over the next two weeks, temperatures in Ko Samui are expected to range from around 26 °C on the coldest nights up to about 30 °C on the warmest days. Use this range to plan what to pack and wear.
Will it rain in Ko Samui in the next two weeks?
Yes - rain is expected on about 13 of the next 14 days in Ko Samui, with roughly 86.7 mm of rainfall in total. It is worth keeping an umbrella or raincoat handy.
How windy is it in Ko Samui?
Maximum wind speeds in Ko Samui are forecast to reach about 41 km/h at their peak over the next 14 days.
When is the best time to visit Ko Samui?
For a month-by-month look at temperatures and rainfall, see our best time to visit Ko Samui guide.
How accurate is the 14-day forecast for Ko Samui?
Our Ko Samui forecast uses leading meteorological models and is most reliable over the next few days. Long-range days beyond a week show general trends and can change, so check back closer to the date for updates.
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Where is Ko Samui?Get accurate weather forecasts for Ko Samui, located at latitude 9.536 and longitude 99.936. Stay updated with localized weather information tailored for Ko Samui.
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