Overview
Koh Samui is Thailand's second-largest island, nestled in the Gulf of Thailand off the eastern coast of the Kak Peninsula in Surat Thani Province. With its powdery white beaches, lush jungle interior, vibrant nightlife, and world-class resorts, it draws millions of visitors every year — and for good reason. Whether you're a first-time visitor or a returning fan of the island, understanding the lay of the land before you arrive will make your trip smoother, safer, and far more enjoyable.
Essential Information
Before you pack your bags, here's what you need to know about staying safe and informed on Koh Samui:
- Currency: The Thai Baht (THB) is the local currency. At the time of writing, roughly 35 THB equals $1 USD. ATMs are widely available but charge withdrawal fees of around $5–$6 USD per transaction, so withdraw larger amounts at once.
- Language: Thai is the official language, though English is widely spoken in tourist areas like Chaweng and Lamai Beach.
- Health precautions: Tap water is not safe to drink — stick to bottled water, which costs around $0.50 USD per 1.5-litre bottle at 7-Eleven. Make sure your travel insurance covers medical evacuation, as serious cases are often transferred to the mainland.
- Scams to avoid: Be wary of jet ski rental scams, where operators may claim damage to their equipment and demand hundreds of dollars. Always photograph the jet ski before and after use, and consider paying with a card rather than cash.
- Road safety: Traffic accidents are the leading cause of injury among tourists in Thailand. Roads can be steep, winding, and poorly lit. If you plan to rent a scooter, wear a helmet at all times — it's the law and it could save your life.
Practical Tips
A little local knowledge goes a long way on Koh Samui. Here are some tried-and-tested tips from seasoned travellers:
- Choose your base wisely: Chaweng is the most popular and lively area, ideal for nightlife and beach bars. For a quieter atmosphere, head to Bophut (Fisherman's Village) in the north, or Maenam, which is perfect for families and budget travellers.
- Getting around: Songthaews (shared red pickup trucks) are the cheapest way to get around, costing roughly $1–$2 USD per ride along fixed routes. Taxis exist but rarely use meters — always agree on a price before you get in. Grab (the local ride-hailing app) is available and offers more transparent pricing.
- Sun safety: The tropical sun is intense year-round. Apply high-SPF sunscreen generously, stay hydrated, and avoid peak sun hours between 11am and 2pm if you're sensitive to heat.
- Respect local customs: When visiting temples such as the famous Big Buddha (Wat Phra Yai) in Bo Phut, dress modestly — cover your shoulders and knees. Locals appreciate the effort, and it's required for entry.
- Beach safety: Some beaches have strong undertows, particularly during the monsoon season (October to December on the Gulf side). Always check for warning flags before swimming and never enter the water when red flags are flying.
- Food safety: Street food is delicious and generally safe if stalls are busy and food is cooked fresh in front of you. Stick to bottled or purified water and avoid raw shellfish if your stomach is sensitive.
Getting There
Koh Samui is served by Samui Airport (USM), a privately owned airport located in the northeast of the island near Chaweng. Bangkok Airways operates the majority of flights to USM, with direct connections from Bangkok (Suvarnabhumi, BKK), Phuket, Singapore, Hong Kong, and several other regional hubs. Flights from Bangkok to USM take approximately one hour and typically cost between $60–$150 USD one way, depending on how far in advance you book.
If you're on a tighter budget, an alternative is to fly into Surat Thani Airport (URT) on the mainland — which is served by a wider range of budget airlines including AirAsia and Nok Air — and then take a bus-and-ferry combination to the island. This route takes around three to four hours in total but can cost as little as $10–$20 USD.
Accommodation Options
Koh Samui caters to every type of traveller and budget:
- Budget: Guesthouses and hostels in Chaweng and Maenam start from around $15–$30 USD per night. Look for options on the side streets behind the main beach road for better value.
- Mid-range: Comfortable boutique hotels and small resorts in areas like Bophut or Lamai range from $60–$150 USD per night and often include a pool and breakfast.
- Luxury: The north and west coasts, particularly around Choeng Mon and the hills above Chaweng Noi, are home to some stunning five-star resorts and private pool villas. Expect to pay $250 USD and upward per night at properties like the Four Seasons or Conrad Koh Samui.
Plan your trip to Koh Samui
Koh Samui rewards those who arrive prepared. With its stunning scenery, warm hospitality, and incredible variety of experiences, it's one of Southeast Asia's most beloved destinations — and with the right precautions in place, it's a genuinely safe and unforgettable place to visit. Ready to start planning? Browse the latest deals and book your