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Koh Samui Weather in April

Thailand

April becomes hot and humid with temperatures peaking near 33°C and frequent afternoon thunderstorms, so seek indoor attractions, enjoy early morning beach time and consider the quieter travel season with fewer crowds.

Avg High

33°C

Avg Low

26°C

Daily Rain

2.5mm

Rainfall

Low

💡 Best months to visit Koh Samui: Feb, Mar, Jan

Koh Samui Weather by Month

Month	High	Low	Rain
Jan	29°C	24°C	3mm
Feb	30°C	24°C	1.5mm
Mar	31°C	25°C	2mm
Apr	33°C	26°C	2.5mm
May	33°C	26°C	5mm
Jun	32°C	26°C	4.5mm
Jul	32°C	25°C	5.5mm
Aug	32°C	25°C	5mm
Sep	32°C	25°C	5.5mm
Oct	31°C	25°C	10mm
Nov	30°C	25°C	13mm
Dec	29°C	24°C	6.5mm

About Koh Samui

This tropical island paradise features white-sand beaches, coconut palms, luxury resorts, nightlife and perfect-postcard island tranquility.

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