Ko Samui Weather in April

Ko Samui in April sees very high daytime temperatures of 31°C (88°F) and nighttime lows of 28°C (82°F). Rainfall is fairly high this month at around 111 mm (4.4 in), so pack a rain jacket to stay dry.

Rainfall in Ko Samui in April

Historically, approximately 8 days this month are expected to have rain, averaging 111 mm (4.4 in). Rainfall intensity is on the higher side this month. Expect more substantial showers rather than light, passing rain.

Temperature in Ko Samui in April

April in Ko Samui sees highs of 31°C (88°F) and lows of 28°C (82°F) overnight. If you're spending a lot of time outdoors, it helps to plan around the warmer part of the day. With overnight lows of 28°C (82°F), nights stay very warm. Air conditioning makes a real difference if you're sensitive to heat. A cold shower before bed can also help you get to sleep more comfortably.

Sunshine in Ko Samui in April

Expect a lot of sunshine this month, with about 201 hours of sun. These sunny conditions add to the overall experience.

Average water temperature in April

At 30°C (86°F), the water feels bath-warm. Fine for swimming, but those looking for a cooling swim may be a bit disappointed.

For Ko Samui itself, January and February generally stand out with the best circumstances. If you're seeking pleasant, dry and sunny weather somewhere else in the world, our weather planner can help you explore other options.

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• January
• February
• March
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• May
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• September
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For a detailed overview over the year and the best time to visit Thailand, check out our Ko Samui's climate page.

Ko Samui Temperature in April

Min Temperature 28°C (82°F)  

Max Temperature 31°C (88°F)  

Water Temperature 30°C (86°F) *  

Chance of Rain 26%  

Precipitation 111 mm (4.4 in)  

Rainy days 8 days  

Humidity 81% *  

Sunshine 201 hours *  

Percentage Sunshine *  

* Data from: Koh Samui, Thailand (19 KM, 12 Miles).

What to Wear in Ko Samui in April

Warm but pleasant conditions in Ko Samui in April. Focus on lightweight, maybe with natural fabrics, cotton blend shirts, comfortable shorts, and breathable footwear. A light cover-up for sun protection is smart too. Expect heavy rainfall, so bring good rain protection and waterproof bags. Expect water temperatures of around 30°C (86°F), which is ideal for taking a refreshing dip. Bring swimwear and consider packing a towel for drying off. You'll definitely want to pack sunglasses and sunscreen. There will be plenty of bright sunshine this month.

What To Do in Ko Samui in April

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

Swimming

9/10

Cycling

7/10

Walking

7/10

Camping

7/10

Outdoor sports

7/10

Select a Month

Check the conditions for any month of the year.

• January
• February
• March
• April

• May
• June
• July
• August

• September
• October
• November
• December

For a detailed overview over the year and the best time to visit Thailand, check out our Ko Samui's climate page.

More climate data for Ko Samui

Temperature Rainfall Sunshine Humidity Water Temp

See the full Ko Samui climate overview or explore weather in Thailand.