Located in the Gulf of Thailand about 35 kilometers northeast of Surat Thani town, Ko Samui is the largest island in the Chumphon Archipelago. Measuring roughly 25 kilometers at its widest point, this self-governing district is easy to navigate via a 51-kilometer ring road encircling the coastline. Visitors can reach the island directly by air landing at Samui Airport in the northeast or via ferry connections arriving at Nathon Port on the western coast.
The island offers diverse coastal lowlands bounded by a dense tropical jungle interior. Central Samui rises to its highest peak at Khao Pom, reaching 635 meters above sea level. Coastal regions feature established resort spots like Chaweng Beach alongside quieter stretches, while inland rainforests hide famous cascades including the Na Muang and Hin Lad waterfalls. Off the southern and eastern shores lie smaller islets like Ko Taen, Ko Matsum, and Ko Matlang.
Once an isolated community reliant on coconut and rubber harvesting, Ko Samui has transformed into a world-famous island destination. Historical influences remain visible in Chinese-Hainanese shrines, historic fishing villages like Ban Hua Thanon, and prominent Buddhist sites such as Wat Samret and Wat Khunaram. While resort areas present lively dining and commercial hubs, the surrounding waters and forests host rich wildlife, from native flying foxes to diverse marine life.
Ko Samui caters to a wide spectrum of travelers, from families and international vacationers to backpackers and nature enthusiasts. The island is an ideal base for exploring offshore marine reserves, hiking through interior rainforests to scenic waterfalls, and immersing yourself in local Thai and Hainanese cultural landmarks. Whether you seek relaxing beachside resorts or adventurous island-hopping day trips, Ko Samui accommodates varied travel styles.
01 Highlights & things to do
What makes this stretch of coast worth the trip — from the water to the walks, wildlife and the views.
Compiled from Wikipedia · conditions vary with weather, tides and the season.
Beach map & the area
The free OpenStreetMap layer below shows the beach and its surroundings — the coastline, access roads, nearby towns and where to park. Zoom in for detail, or open it live in a full map.
Map: © OpenStreetMap contributors (ODbL, free).
02 Getting there
| Option | Detail |
|---|---|
| Flight | Fly directly into Samui Airport located in the northeast section of the island. |
| Ferry | Take a passenger or car ferry from the mainland arriving at Nathon piers on the west coast. |
| Road | Travel around the island using the 51-kilometer concrete coastal ring road. |
Getting there · Last updated: 2026-09-12 · always double-check access & ferries
03 Where to stay
Resorts, towns and areas near the beach — the closer you stay, the easier the early-morning and sunset hours when the light is best and the crowds are thin.
The central hub of island tourism with extensive resort accommodations and commercial developments.
A popular northern district offering easy access to commercial centers and resorts.
04 Best time to visit & the water
| Season | When | Good to know |
|---|---|---|
| Monsoon Season | Mid-October to early December | The island experiences its heaviest rainfall during these months, exceeding 212 mm of rain per month. |
| Dry / Light Rain Season | December to September | Weather remains warm and humid with brief daily rain showers typically lasting 20 to 60 minutes. |
Conditions vary with weather, tides & season · Last updated: 2026-09-12
05 Nearby & around
Other beaches, coves, towns and sights within easy reach — worth stringing together into a coastal day.
Good to know
- Be cautious around box jellyfish in surrounding waters, especially during swim activities.
- Tread carefully around steep rocks near Na Muang and Hin Lad waterfalls due to slip hazards.
- Brief tropical rain showers lasting 20 to 60 minutes are common throughout the year.
- Tens of thousands of stray dogs live on the island; exercise routine safety around free-roaming animals.