Koh Samui

Koh Samui, Thailand

A weathered wooden boat on the wet sand of Lipa Noi Beach at sunset, with coconut palms and orange sky.

Come for long beaches, clear water and a green interior, but choose your stretch of coast carefully, because the east side gets busy.

The place

Koh Samui sits in the Gulf of Thailand, a short hop off the east coast of the mainland, and is the largest island in the Chumphon Archipelago. It is Thailand's second-largest island after Phuket, and its population of about 62,500 lives mostly along the coast, where the roads and most businesses are. Since gaining municipal status it has governed itself locally, though it still belongs administratively to Surat Thani Province.

The coast is the reason most people come. The east side around Chaweng is the busiest and most developed, with hotels, pubs and pizza places in quantity. The north and northeast are calmer, with Bophut and Big Buddha Beach offering a mix of swimming, restaurants and dive operators. The south and west feel quieter again. Ko Pha-ngan and Ko Tao lie to the north, and day boat trips reach the Ang Thong marine park to the west.

Inland the island is mostly forest, with tree cover and wildlife in the centre. Its highest point, Khao Pom, reaches 635 metres. A ring road of about 51 km links the lowlands and coastal villages, and it is how most visitors get around, usually by scooter or hired car. The interior feels very different from the beaches: shaded, green and quiet, with waterfalls a short drive from the main resorts.

Its story

Koh Samui's story begins with oral tradition, which holds that the first settlers were fishermen crossing from the Malay Peninsula, while traders from southern China passed by on their routes. Some local historians add that the island served as a refuge when storm seasons made the sea dangerous. Archaeology suggests people lived here considerably earlier than those accounts imply. Bronze ritual drums, decorated with birds, boats and spirits, have been found in the southern hills.

Under the Siamese feudal system, Samui became a link in the trade between China and India. Its position drew immigrants from many ethnic and religious backgrounds, and it was administered through Nakorn Si Thammarat on the mainland. Thai people became the majority, and the economy turned toward farming. Settlement moved inland from the coast, away from the earlier inhabitants' shoreline villages.

An early Chinese map names the island Pulo Cornam, a reminder of how long it had been on the sea routes. In the modern period, Chinese migrants settled across Thailand, Samui included, and Chinese families became part of the island's commercial life.

Tourism changed the island within living memory. Chaweng was once lined with a handful of timber huts, and it is now a crowded strip of hotels, bars and restaurants.

What to see

Culture

Samui speaks a dialect of its own and keeps customs, a cooking style and ceremonies that differ from elsewhere in Thailand. The island's calendar follows village life. Loy Khro is one of the most visible rituals: small craft are launched into the sea carrying hair, nail clippings and other offerings meant to carry away misfortune. In June, villages hold Lah Pho Ta before their shrines, offering savoury and sweet food to guardian spirits, followed by the Manora. Southern habits of sharing home-cooked food still shape temple fairs and beach gatherings. Newer events have arrived too, including a Latin music festival and a regatta, which sit alongside the older observances. If you are invited to a temple fair or village ceremony, watch what others do first, sit where you are directed, and ask before photographing people or their offerings, and remove your shoes before entering any shrine or temple hall.

What to wear

Traditional dress on Samui follows the wider southern Thai style. For ceremonies and formal occasions, people wear a wrapped, sarong-style skirt with a fitted blouse, usually in silk or cotton, and the woven patterns and colours change with the occasion. Silk, cotton and hand-woven cloth are the textiles most often seen in these outfits. Muslim communities in the south may dress more modestly, and women often cover their hair.

Day to day, most people dress for the heat. In the resort areas that means shorts, T-shirts, sundresses and flip-flops. For offices and government buildings, trousers or a long skirt with a collared shirt are more usual.

For a visitor, pack light, breathable cotton or linen. Cover shoulders and knees when you enter a temple, and keep beachwear to the sand and the resort areas. Closed sandals or trainers suit jungle paths and wet waterfall rocks, and a light layer helps in air-conditioned restaurants.

What to eat

Plan it

Best time. The drier stretch on the gulf side runs from about January to April, with calmer seas for diving and boat trips, while May to August brings noticeably more rain. The wetter weather usually arrives later in the year. Check a current forecast before you book, since rainfall and sea conditions can vary from year to year.

How long. 3–4

Getting there. Samui Airport takes direct flights. For the last leg, a shared minibus to the beaches is the cheapest pre-booked option, while taxis and ride-hailing apps cover the rest. Agree a fixed fare before you set off, because many drivers will not run the counter.

Budget. mid

Tips

Etiquette

Nearby

Sources