Ko Samui
Ko Samui District, Surat Thani Province, Thailand
Current Weather
25°77°
Mostly Clear
Feels Like: 29°85°
Min: 24°76°
Max: 29°83°
The next few hours will be mostly clear, with today reaching 29°C and dropping to 23°C. The coming days will be light rain throughout the day.
Hourly Forecast
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Air Quality
Air quality is satisfactory, and air pollution poses little or no risk.
Daylight Hours
06:12
Sunrise
17:55
Sunset
Moon
15:47
Moonrise
04:10
Moonset
Daily Forecast
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View stargazing scoreWeather in Ko Samui today, October 23, 2026
Ko Samui looks damp on October 23, 2026, so plan for wet spells during the day. Early travel and outdoor time should assume rain can arrive quickly. Wetter spells lean into the morning, when rain odds reach about 94% near 11:00. Skies look heaviest around 11:00, with cover close to 45%.Ko Samui looks damp on October 23, 2026, so plan for wet spells during the day. Early travel and outdoor time should assume rain can arrive quickly. Wetter spells lean into the morning, when rain odds reach about 94% near 11:00. Skies look heaviest around 11:00, with cover close to 45%.
The day peaks near 29°C and cools toward 24°C. Moisture in the air spans 64%-87%, with the highest values around 19:00. Expect gentle winds, highest near 23:00 at 7 km/h.The day peaks near 83°F and cools toward 76°F. Moisture in the air spans 64%-87%, with the highest values around 19:00. Expect gentle winds, highest near 23:00 at 5 mph.
Afternoon showers stay in play, peaking near 94% around 12:00. Skies remain cluttered, with cover about 73% by 23:00. Visibility stays near 16.1 km. Expect sunrise at 06:12, sunset at 17:55, and 11 hours 43 minutes of sunlight today overall.Afternoon showers stay in play, peaking near 94% around 12:00. Skies remain cluttered, with cover about 73% by 23:00. Visibility stays near 10 mi. Expect sunrise at 06:12, sunset at 17:55, and 11 hours 43 minutes of sunlight today overall.
Overall, Ko Samui on October 23, 2026 suits indoor plans or waterproof kit, especially while rain chances stay near 94% and the high sits around 29°C.Overall, Ko Samui on October 23, 2026 suits indoor plans or waterproof kit, especially while rain chances stay near 94% and the high sits around 83°F.
Frequently asked questions about weather in Ko Samui
How warm does it get in Ko Samui?
The warmest month in Ko Samui is May, with average high temperatures of 30°C. The average temperature during this period is around 29°C.The warmest month in Ko Samui is May, with average high temperatures of 85°F. The average temperature during this period is around 84°F.
How cold does it get in Ko Samui?
The coldest month in Ko Samui is December, with average low temperatures of 26°C. The average temperature during this period is around 27°C.The coldest month in Ko Samui is December, with average low temperatures of 79°F. The average temperature during this period is around 80°F.
What is the wettest time of year in Ko Samui?
The wettest month in Ko Samui is November, with an average of 322 mm of precipitation.The wettest month in Ko Samui is November, with an average of 12.7 in of precipitation.
What is the driest time of year in Ko Samui?
The driest month in Ko Samui is March, with an average of 38 mm of precipitation.The driest month in Ko Samui is March, with an average of 1.5 in of precipitation.