Koh Samui weather in April (Bangkok Province, Thailand)

Curious about the April weather in Koh Samui? Check out this comprehensive weather guide.

In April, Koh Samui generally has very high temperatures and high rainfall. Throughout the daytime, temperatures often hover around 31°C. However, as the sun sets and evening approaches, there's a noticeable cool-down, with temperatures gently dropping to a more temperate 28°C. Bear in mind, these are average temperatures, and it can get even warmer on particular days. Make sure to choose clothing that accommodates the warmth.

Koh Samui in April usually receives high rainfall, averaging around 106 mm for the month. Based on our climate data of the past 30 years, about 8 days of rain are anticipated.

The city usually sees around 201 hours of sunlight, indicating many sunny days.

In case you lean more towards enjoying temperate temperatures and rain-free days January and February typically offer the most optimal weather. In contrast, October and November tend to have less optimal conditions.

For an in-depth look at the yearly conditions, visit our specialized Koh Samui climate page with graphs.

 

Koh Samui, monthly averages in April

Min TemperatureMin Temperature 28°C  
Max TemperatureMax Temperature 31°C  
Water TemperatureWater Temperature 30°C  
Chance of RainChance of Rain 26%  
PrecipitationPrecipitation 106 mm  
Rainy daysRainy days 8 days  
HumidityHumidity 81%  
SunshineSunshine 201 hours  
Percentage SunshinePercentage Sunshine  

Where to go in Thailand in April

Find out more about the weather in Thailand in April and which places have the best weather conditions in this month.

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Legend perfect weather pleasant tolerable unpleasant poor
Perfect weather is subjective. On this map perfect weather has been defined with temperatures between 20°C and 29°C and not too much precipitation (less than 90 mm a month).

So, what should you wear in Koh Samui in April?

It's going to be warm! Consider airy clothing, t-shirts, and other summer clothes. Shorts for men made of cotton or linen are good options for staying cool. However, there's a good chance of rain, so bring a raincoat just in case. With a water temperature of around 30°C this is a great month to swim so bring your swimwear.

What To Do

We rated the following activities from 1 (least suitable) to 10 (best) to do in April.

Swimming
9/10
Cycling
7/10
Walking
7/10
Camping
7/10
Outdoor sports
7/10

Interested in more climate information?

Weather and Climate provides you with all the information you need about the climate in Koh Samui.

Our site offers climate and forecast data for every country in the world. Are you going to Thailand? On this website you can find historical weather averages for many cities in Thailand. Not sure yet where to go? We now have a tool which recommends destinations that suit your ideal climate conditions. Find out where to go with our weather planner.