Koh Samui is the largest of the three main Gulf islands that travellers usually combine: Samui, Koh Phangan and Koh Tao. It is the easiest to reach, with its own airport, a wide range of hotels and a mix of quiet coves and busy beach strips. This hub gives the planning basics and points you to the detailed guides.
How to get to Koh Samui from Bangkok
All timings and fares below are approximate and change by season, so confirm on the operator's own page. Information is as of 2026.
| Route | Typical total time | Notes |
|---|---|---|
| Direct flight to Samui (USM) | About 1 hr 10 min | Fastest option. The airport is small and privately operated, and fares are often higher than mainland routes. |
| Flight to Surat Thani (URT) + bus/ferry | About 4-6 hrs door to door | Often cheaper, but you need to connect to a ferry pier by shuttle. |
| Overnight train to Surat Thani area + ferry | About 10-13 hrs | Sleeper berths are limited, so book early. Connect to a Donsak or Don Sak pier by bus. |
| Bus + ferry combination ticket | About 11-14 hrs | Cheapest. Overnight services leave Bangkok's southern terminals in the evening. |
Combination tickets sold by bus and ferry companies usually cover the mini-van or bus leg and the ferry. Check where the pier is and whether you must change vehicles. If you will keep going to Phangan or Tao, read the ferry guide first.
For train timetables and bookings, use the State Railway of Thailand site. For general Thailand transport context see Thailand getting around.
Best time to go
Samui sits on the Gulf side, so its weather pattern differs from Phuket and Krabi on the Andaman coast. As a rough guide:
- January to April: generally the driest and sunniest, with calm seas.
- May to August: warm with some showers; many travellers find it good value. The Andaman side is wetter then, which is why Samui is often chosen as a summer alternative.
- September: variable.
- October to December: the main wet season, with the heaviest rain often in November and sometimes ferry disruption.
Seasons are not guaranteed from year to year. Check forecasts from the Thai Meteorological Department close to travel. For the Andaman comparison see best time by region.
Where to stay
Samui is large enough that your base shapes the trip. A fuller breakdown is in where to stay in Koh Samui. In short:
- Chaweng: the longest beach, the most shops, restaurants and nightlife. Lively and convenient, but busy.
- Lamai: a bit calmer than Chaweng, with a mix of budget and mid-range places.
- Bophut and Fisherman's Village: a walkable promenade with cafes, popular with couples and families.
- Maenam and Bang Po: quieter north-coast beaches with a local feel.
- Choeng Mon and the southwest: smaller bays and villa-style stays, further from nightlife.
Top things to do
- Beach time in Chaweng, Lamai or the quieter north shore.
- A day trip to Ang Thong National Marine Park, an archipelago north-west of Samui. Park entry fees are set by the national park authority; check the current fee on the official site before you go.
- Temples such as Wat Phra Yai (Big Buddha) and the Plai Laem complex. Dress modestly and see temple etiquette.
- Waterfalls such as Na Muang, best visited in or just after the wet months when flow is higher.
- Snorkelling or diving day trips, or an easy hop to Koh Tao for certification courses.
- Markets and street-food evenings, including walking streets that run on set weekdays (check locally).
Sample budget table
These are broad, approximate daily ranges per person, excluding flights, as of 2026. Prices vary by season, and beachfront hotels cost more.
| Style | Accommodation | Food and drink | Transport and activities | Daily total |
|---|---|---|---|---|
| Budget | THB 500-1,000 | THB 400-700 | THB 200-500 | THB 1,100-2,200 |
| Mid-range | THB 1,500-3,500 | THB 700-1,500 | THB 500-1,500 | THB 2,700-6,500 |
| Comfortable | THB 4,000+ | THB 1,500+ | THB 1,500+ | THB 7,000+ |
Motorbike hire is commonly quoted around a few hundred baht a day, but check your insurance, licence and helmet rules first. Taxis on Samui are often pricier than in Bangkok, so agree the fare before you start.
Safety and practical notes
- Emergency numbers in Thailand: 191 police, 1669 medical emergency, 1155 Tourist Police.
- Rip currents and swell can be strong in the wet season; follow beach flags and local warnings.
- Motorbike accidents are a common cause of tourist injuries on the island. Wear a helmet and make sure your travel insurance covers riding.
- Carry reef-safe habits when snorkelling: do not touch coral or feed fish.
If you plan to dive, remember the guidance on flying after diving. Leave enough time before your departure flight, and see Koh Tao diving courses.
Plan your island hop
Samui works as a starting point for a loop: Samui, then Koh Phangan, then Koh Tao, and onward to the mainland. The route is covered in the Samui-Phangan-Tao ferry guide. Before you fly in, see the country overview at Thailand and the arrival city at Bangkok.
FAQ
Is Koh Samui good for first-time visitors to Thailand?
Yes, in general. It has an airport, many hotel types, and tours and medical facilities are easy to find. Pick the beach area by atmosphere: livelier Chaweng or calmer Bophut and Maenam.
How many days do I need in Koh Samui?
Many visitors spend three to five days. Three days covers beaches, a temple or waterfall and a boat trip. Add more days if you want to combine it with Phangan or Tao.
Is Samui rainy in the months when Phuket is dry?
Often the Gulf side has a different pattern from the Andaman side, with the heavier rain tending to arrive later in the year. It is a rough guide only, so check the forecast.
Can I get from Bangkok to Koh Samui without flying?
Yes, by overnight train or bus to the Surat Thani region and then a ferry. Expect a long journey, and check current timetables with the operators.
Do I need a visa for Koh Samui?
Visa and entry rules apply to Thailand as a whole and can change. See Thailand entry requirements and the official government sources linked there.
Official sources and further reading
Prices, schedules and entry rules change. Figures here are approximate as of 2026; always confirm on the official or operator page before you book. Spotted something out of date? Tell us.
