Koh Samui gets busiest in January, February, and April. Crowd levels ease off outside that window, so you can time a trip around the peak.

When is the best time to visit Koh Samui?

For thinner crowds, visit Koh Samui in June, July, August, September, and October, when travel demand is at its lowest.

island · Thailand · 9.51°N 100.06°E

Best time to visit Koh Samui (and when it is crowded)

Koh Samui is a island destination in Thailand. Its peak season is January, February, and April, and it is least crowded in June, July, August, September, and October. Here is how busy it gets across the year, so you can pick the right time to go.

Crowd levels by month

Jan

Feb

Mar

Apr

May

Jun

Jul

Aug

Sep

Oct

Nov

Dec

QuietModerateBusyVery BusyPacked

Busiest months

January, February, and April

Quietest months

June, July, August, September, and October

Koh Samui month by month

How crowded Koh Samui gets in each month, so you can pick a quieter time to visit.

Koh Samui in January: Moderate
Koh Samui in February: Moderate
Koh Samui in March: Moderate
Koh Samui in April: Moderate
Koh Samui in May: Quiet
Koh Samui in June: Quiet
Koh Samui in July: Quiet
Koh Samui in August: Quiet
Koh Samui in September: Quiet
Koh Samui in October: Quiet
Koh Samui in November: Quiet
Koh Samui in December: Moderate

A typical year, week by week

Quieter alternatives

Similar places that stay calmer in peak season.

🇰🇭 Koh Rong

Cambodia1 band calmer

🇲🇾 Tioman Island

Malaysia1 band calmer

🇲🇾 Perhentian Islands

Malaysia1 band calmer

🇼🇸 Samoa

Samoa1 band calmer

Keep exploring

Common questions

Is Koh Samui busy?: Koh Samui gets busiest in January, February, and April. Crowd levels ease off outside that window, so you can time a trip around the peak.
When is the best time to visit Koh Samui?: For thinner crowds, visit Koh Samui in June, July, August, September, and October, when travel demand is at its lowest.
When is Koh Samui least crowded?: Koh Samui is least crowded in June, July, August, September, and October.

Estimates based on seasonal travel-demand modelling, not live visitor counts.

See live crowd levels for Koh Samui on the map →

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