Koh Samui weather in April (Bangkok Province, Thailand)

This month is known as a warm month. The average maximum daytime temperature in Koh Samui in April lies at 30.0°C (86°F). The average minimum temperature goes down to around 26.6°C (79.88°F) (often the minimum temperature is noted at night).

Rainfall during April is moderate with an average of 87mm (3.4 inches). There are generally around 7 rainy days. The sun also shows itself regularly this month with 201 hours of sunshine during the entire month.

 

Koh Samui, monthly averages in April

Show in Fahrenheit

Min Temperature 26 °C  

Max Temperature 30 °C  

Water Temperature 29 °C *  

Chance of Rain 26%  

Precipitation 86mm  

Rainy days 8 days  

Humidity 81% *  

Sunshine 201 hrs *  

Where to stay in Koh Samui

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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.

Weather conditions Weather

Temperatures

Precipitation

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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 20-29ºC / 68-84ºF and not too much precipitation (less than 90mm / 3.5inches a month).

So what to wear in April? Visitors traveling to Koh Samui should plan on bringing a totally waterproof coat since it will often be raining. However, also bring your summer cloths because it can be very warm or even hot. With a water temperature of around 29.5°C (85.1°F), 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.