Visiting Koh Samui in April 2026
Planning a trip to Koh Samui in April? Here's everything you need to know about the weather, crowds, festivals, and the best things to do during this month.
Weather
Hot and dry season with temperatures rising to 35-40°C. Humidity builds up toward May.
Crowds & Prices
Quieter than peak season except during Songkran (mid-April), which attracts massive domestic and international crowds.
Pros
- ✓ Lower hotel rates outside Songkran week
- ✓ Excellent diving visibility in Andaman Sea
- ✓ Songkran water festival experience
- ✓ Mango season — peak tropical fruit
Cons
- • Very hot for outdoor activities
- • Northern haze (March-April) from agricultural burning
- • Plan indoor breaks midday
Top Things to Do in Koh Samui in April
Koh Samui in April – FAQ
More April & Koh Samui Guides
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Koh Samui in January
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Koh Samui in February
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Koh Samui in March
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Koh Samui in May
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Koh Samui in June
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Koh Samui in July
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