Bangkok, Chiang Mai & Phuket
- Grand Palace
- Doi Suthep temple
- Phi Phi Islands by speedboat
Thailand's second-largest island, ringed by palm-backed beaches with a jungle-covered interior and its own airport
Koh Samui is Thailand's second-largest island after Phuket and the largest in the Chumphon Archipelago. A ring road of roughly 50 kilometres follows the coast, linking a series of very different beaches: busy Chaweng on the east coast with its hotels, restaurants and nightlife, Lamai a little further south, and quieter stretches on the north and west coasts such as Bo Phut, Mae Nam and Lipa Noi. Inland the island rises to jungle-covered hills topped by Khao Pom at 635 metres, cut by streams and waterfalls such as Na Muang.
For many visitors Samui is a comfortable base rather than a single sight. It has its own airport, a wide choice of accommodation from simple bungalows to large resorts, and boat links to the neighbouring islands of Ko Pha-ngan and Ko Tao and to the Ang Thong marine park. Between beach days there are temples to visit, including the large golden seated Buddha at Wat Phra Yai in the north-east, and the old Chinese shophouses of Fisherman's Village at Bo Phut.
Oral tradition holds that the island was first settled around the 6th century by fishermen from the Malay Peninsula, and some archaeological finds suggest people lived here far earlier. Later, Chinese immigrants, many of them traders from Hainan, established cotton and coconut plantations and shipped the produce to the mainland; coconuts remained the backbone of the economy for generations, and plantations still cover much of the island.
Samui stayed isolated well into the 20th century and had no roads until the early 1970s. Backpackers began arriving in growing numbers in the late 1970s, arriving by boat from Surat Thani. The turning point came in April 1989, when Bangkok Airways opened Samui Airport, which it built and still owns and operates. Since then the island has developed into one of Thailand's main beach destinations, while west-coast Nathon, where ferries from the mainland arrive, keeps a more local character.
Behind the resort strips, Samui is still an island of coconut plantations, fishing villages and Buddhist temples. Many families have roots in the Hainanese and other Chinese traders who settled here, and Chinese shrines stand alongside Thai temples. Seafood, southern Thai curries and dishes made with fresh coconut feature on local menus, and the walking-street markets are good places to try grilled seafood and sweets. Nathon, one of the ferry ports on the west coast, has a workaday feel that contrasts with the east-coast beaches.
Most visitors divide their time between the beach and short trips around the island. Hiring a car or taking songthaews (shared pick-up taxis) along the ring road makes it easy to sample different beaches, stop at temples and viewpoints, and head inland to the Na Muang waterfalls. Snorkelling and kayaking day trips run to the Ang Thong archipelago, and boats connect Samui with Ko Pha-ngan and Ko Tao for diving or a change of scene. Spa treatments, Thai cookery classes and Muay Thai training are widely offered, and evenings revolve around beachfront restaurants and the night markets at Bo Phut, Lamai and Chaweng.
Samui has a tropical monsoon climate that differs from the Andaman coast. The heaviest rain falls from mid-October to early December, with November usually the wettest month. From late December to April the weather is generally dry and sunny, and the middle of the year is warm with mostly short showers, which makes Samui a good choice when the west coast of Thailand is in its rainy season.
Checked against the sources on 29 October 2026. Opening times and fees can change — confirm before you go.
General guidance from our specialists, not official information.
Ko Pha-ngan lies a short boat ride to the north, and Ko Tao, known for diving, a little further on. The 42 islands of the Ang Thong National Marine Park are about 30 kilometres to the west and are visited on day trips from Samui. On the mainland, Surat Thani and the Don Sak ferry pier are the gateway for road and rail travellers, and Khao Sok National Park is a few hours' drive inland.
This guide was researched from the sources below and reviewed by our team on 29 October 2026. Facts under “Verified information” link to the page they were checked on; travel tips are general guidance. Photos are credited on each image. The ambient recording’s author and licence are shown in the sound player.