ThailandThe weather in April in Ko Samui
It's hot in April in Ko Samui with an average temperature of 33°C. Temperatures this month range from a low of 32°C to a high of 34°C. At night, you can expect temperatures between 27°C and 29°C.
Looking for sun? April isn’t a good month to be in Ko Samui. The temperature is nice, but there’s too much chance of rain.
Average temperatures and precipitation
This chart shows the average daily maximum and minimum temperatures (in degrees Celsius) and precipitation (in millimeters) in April for Ko Samui, Thailand. A low precipitation value usually indicates little to no rainfall on that day in recent years, while a higher value suggests more frequent rainfall.
Temperature records
With 36°C in 2016, Ko Samui reached the highest temperature in April over the past 10 years. The lowest daytime temperature in this month was 27°C in 2017. The extreme nighttime temperatures ranged from a lowest recorded value of 23°C to a highest value of 30°C.
Water temperature
The water temperature at Ko Samui is 32°C this month. It’s really warm, perfect for a swim.
Rainfall amount
In April, there is an average of 121 mm of precipitation, spread over 13 days. The wind speed is around 4 Bft, mostly coming from the South.
Daily weather in April for Ko Samui
Click on any day in April to get detailed info about the usual weather on that day in Ko Samui. Check out the historical temperatures and precipitation over the past 10 years on this day.
April weather comparison
| Ko Samui | New York | |
|---|---|---|
| Average temperature | 33°C | 17°C |
| Max. temperature | 34°C | 22°C |
| Min. temperature | 27°C | -5°C |
| Total precipitation | 121 mm | 81 mm |
| Rainy days | 13 days | 11 days |
Start of April
The month of April starts in Ko Samui with hot temps, averaging around 33°C during the day and nights around 28°C.
Mid April
By mid-April, daytime temps rise to around 34°C, with nights around 28°C. There’s a chance of some showers during this time, but plenty of dry and sunny days too.
End of April
By the end of April, the average daytime temperature in Ko Samui is around 34°C, while nighttime temps are about 29°C. Expect regular precipitation, but if you’re lucky, you’ll also get some dry and sunny days.
UV index
The UV index is a maximum of 10 this month. That's a very high value on the intensity scale of 1 to 11. Unprotected skin can burn within 10-15 minutes.
Check out the climate of Ko Samui for all months and discover the best travel time
Curious about the weather in other parts of Thailand? Check out the climate and weather for spots like Bangkok, Chiang Mai, Phuket, or explore other destinations in Thailand.
Temperature charts
These charts show the average temperatures in April in Ko Samui, Thailand. The temperatures are shown in degrees Celsius and are calculated based on data from the past 10 years.
Daily Temperature in April in Ko Samui
Temperature in April in Ko Samui over the years
Precipitation charts
These charts show the average amount of precipitation in April in Ko Samui, Thailand. Precipitation is always measured as water, even when it falls as snow or hail The amount of precipitation is displayed in millimeters, while snowfall is shown in centimeters.
Daily Precipitation in April in Ko Samui
Total precipitation in April in Ko Samui over the years
Daily UV index in April in Ko Samui
This chart shows the average daily UV index in April in Ko Samui, with the UV index ranging from 0 to a maximum of 11. The bottom of the chart shows the days of the month. Based on historical data, this chart provides an idea of the daily UV radiation levels you can expect.
Weather experiences in April in Ko Samui
Have you been to Ko Samui in April?
Share your weather experience in April in Ko Samui.
Average weather in Ko Samui by month
Click on a month below to see detailed weather info for Ko Samui. Based on historical weather data, you can see the average temperature, precipitation, wind, and UV index for each day of the month.