Best Time to Visit Koh Samui
January, February, March, April, July, August, September
The best months to visit Koh Samui: January, February, March, April, July, August, September. Use this window for the best balance of weather, cost, and activities.
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Climate Overview
Tropical climate. Best December–April (dry season). Monsoon season October–November.
Month-by-Month Calendar
The Four Seasons
Spring is prime time for Koh Samui. Tropical climate. Best December–April (dry season). Monsoon season October–November.
Summer is prime time for Koh Samui. Tropical climate. Best December–April (dry season). Monsoon season October–November.
Autumn / Fall is prime time for Koh Samui. Tropical climate. Best December–April (dry season). Monsoon season October–November.
Winter is prime time for Koh Samui. Tropical climate. Best December–April (dry season). Monsoon season October–November.
What to Pack?
Light summer clothing. Cover up at temples. Swimwear for beach areas only.