💰 Budget
Samui is one of Thailand's more expensive destinations, with five-star resorts and villas on the headlands and beachfront prices in Chaweng and Bophut, especially from December to February. It is also possible to stay cheaply: guesthouses inland, night market food and songthaew rides cost little, and Maenam and Lamai are far cheaper than Chaweng. Flights into Samui's private airport are costly, which pushes some visitors to the ferry route instead.
- Daily Budget Midrange
- USD 90–210 (resort on Samui, restaurants, ferries, a dive or national park trip)
- Daily Budget Shoestring
- USD 30–55 (guesthouse room, night market food, shared songthaews, a beach day)
Compare the Surat Thani flight-and-ferry route with flying direct to Samui, and expect resort rates to double over the Christmas and New Year weeks.
📅 Best Time to Visit
The Gulf coast runs on a different calendar from the Andaman side. February to September is the drier half of the year, with calm seas and the best beach weather in the middle of it. October to December brings the northeast monsoon, heavy rain and rough crossings. January is often a clearing month and stays busy; the peak of prices and crowds is December to February.
⏳ Suggested Number of Days
Four or five days suit a first visit. A week or more is usual for anyone adding the neighbouring islands and the marine park by boat, or simply staying put on one beach. Wet-season trips often need a spare day in hand for boat delays.
- First Visit
- 4–5 days
- With Surroundings
- 7–10 days
🚆 Transportation
A single ring road, route 4169, circles the island, and most traffic uses it. Songthaews — pick-up trucks with bench seats — run set routes along it during the day, taxis and ride-hailing operate in the resort areas, and rented cars, scooters and hotel minibuses cover the rest. The interior has only rough tracks, so crossing the island means going round it.
Agree a taxi fare before setting off, since fares are often not metered, and treat the ring road with care: it is fast, busy and has a poor accident record.
🛬 Airport & Station Connections
Samui Airport, in the north-east near Bophut, was built and is owned by Bangkok Airways, which has been the only airline flying to the island from mainland Thailand since the airport opened. The cheaper route is a flight, train or bus to Surat Thani on the mainland, then a car and passenger ferry from Don Sak to Lipa Noi or Nathon on the west coast. Boats also link Samui with Ko Pha-ngan and Ko Tao.
🚶 Walkability
Each beach area is walkable — Chaweng's strip, Lamai's centre, Bophut's shophouse lane and Nathon's grid are all covered on foot — but the island as a whole is not. Distances between beaches run to several kilometres along a road with narrow or missing pavements, no lighting in places and steep sections, so most journeys need transport.
🛡️ Safety
Samui is generally safe, and the main dangers are traffic and water. Scooter and motorbike crashes on the ring road and the steep hill roads are the leading cause of serious injury to visitors, and rented bikes are often ridden without licences or helmets. Drownings occur in the monsoon surf and in strong currents off the east coast, jellyfish appear seasonally, and drink spiking and theft happen in the nightlife areas.
Ride only with a licence and a helmet and photograph a rented bike before taking it, watch drinks in bars, swim where others swim and heed warning flags, and use hotel safes for passports and cash. Check current official travel advice before travelling.
🌦️ Climate
Tropical, hot and humid all year, with temperatures mostly between 25 and 34°C and the seasons defined by rain rather than heat. The island is sheltered from the southwest monsoon, so its wet season comes late in the year with the northeast monsoon.
- Summer
- hot and mostly dry from February to September, around 28–34°C, with short afternoon showers and calm seas
- Winter
- October to December is the wet season, with heavy rain, storms, rough crossings and around 24–30°C; January begins to clear
🤝 Local Customs
Ordinary Thai courtesies apply: shoes off indoors and in temples, shoulders and knees covered at Wat Phra Yai and other temples, no touching anyone's head, and calm voices in disagreements. Swimwear stays on the beach rather than in shops and restaurants, and nudity is illegal. Tipping is not required, though small change is appreciated. Buddha images are religious objects, not decoration, and posing with them for photographs causes offence.
Cannabis was decriminalised in 2022 and shops opened across the island, but rules tightened in 2025 classed the flower as a controlled herb and limited legal sales to medical use; other drugs carry severe penalties, and taking any of it across a border is a serious offence.
💳 Common Payment Methods
The currency is the Thai baht. Cards are accepted at resorts, supermarkets, larger restaurants and dive schools, often with a surcharge, while markets, songthaews, small kitchens and boat tickets run on cash. ATMs are widespread and charge a fixed fee per foreign withdrawal, so fewer, larger withdrawals cost less.