Best time to go to Koh Samui

Tropical rains come heavy between September and November, so plan your trip after these months to avoid the downpours. December to February are the driest, when the mercury hangs out around the 30°C mark. Summer brings some serious heat, so pack your shorts and suncream.

Passports and Visas

British citizens must have a valid passport to visit Thailand. By law, you must carry your passport with you at all times. British passport holders arriving by air may enter Thailand for 30 days without obtaining a visa in advance of arrival. For the most up-to-date passport and visa info, visit


Don't forget to arrange your travel money and insurance before you go.

Health and safety

You should take out comprehensive travel and medical insurance to cover you while you’re away. For the latest health and safety information, visit

Further Reading

  • Overview
  • Things To Do
  • Key Facts

    • Flight Time - 16 hours

    Travel Aware

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    Travel Aware – Staying Safe and Healthy Abroad
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