Time zone
GMT +07:00
No time difference
Currency
Thai Baht
1USD = 33.15THB
Official languages
Thai
Best time to visit
JAN - MAR
Dry season with calm seas and sunny beaches.
Recommended trip duration
4 days

Ko Samui
Located in the Gulf of Thailand, Koh Samui, Thailand, is a tropical island paradise known for its stunning beaches, laid-back atmosphere, and mix of culture and adventure. Once a quiet fishing village, Koh Samui has grown into one of the most popular Thai islands, with everything from luxury resorts to peaceful retreats surrounded by palm trees and turquoise water.
There are endless things to do in Koh Samui, Thailand, from relaxing at Chaweng Beach, Lamai Beach, or Maenam Beach to temple-hopping at the Big Buddha Temple (Wat Phra Yai) and Wat Plai Laem. Explore Fisherman’s Village in Bophut Beach and chase waterfalls at Na Muang Waterfall.
Don’t miss a day trip or boat trip to Ang Thong Marine Park, Koh Tao, or Koh Phangan, where you’ll find vibrant coral reefs, beautiful marine life, and crystal-clear waters.
If you’re visiting Koh Samui for adventure, food, or pure relaxation, this island has something for everyone. Enjoy authentic Thai food, unwind with a traditional Thai massage, or simply watch the sunset from a beach bar. Start planning your Koh Samui trip today and book your tours and attractions on Klook!
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Top things to do in Ko Samui
Tree Bridge Zipline Samui
Angthong Marine National Park by Speedboat or Big Boat
Koh Tan and Koh Mudsum Day Tour from Koh Samui
Koh Samui Big Buddha & Wat Plai Laem Half-Day Tour
Ko Samui Full-Day Angthong Snorkeling & Kayaking Tour
Angthong National Marine Park Excursion by Big Wooden Teak Boat
Koh Tao Koh Nangyuan and Koh Pha-Ngan from Samui
Koh Samui Island Hopping & Snorkeling Tour: Coral and Pig Island
Koh Samui Koh Nangyuan & Koh Tao Full-Day Snorkeling Tour
Samui Hawk Adventure Zipline Park
ATV Adventure Experience in Koh Samui
Phuket Old Town Private Full-Day Tour
Top attractions in Ko Samui
Koh Samui
Big Buddha Temple (Wat Phra Yai)
Fisherman's Village
Chaweng Night Market
Lamai Night Market
Lipa Noi Beach
Big Buddha Statue
Samui Elephant Kingdom Sanctuary
Coral Cove Beach
Tarnim Magic Garden
Tan Rua Waterfall
Samui Aquarium
Transport in Ko Samui
Koh Samui - Koh Pangan - Koh Tao Ferry by Lomprayah
Ko Samui|Samui Airport Private Airport Transfer
Koh Samui - Koh Phangan Full Moon Party Speedboat Transfer
Koh Samui Car Rental with Driver by Smile Samui Tour
Koh Samui car rentals | Choose from multiple car models
Koh Samui Car Rental with Driver by Black Panda Travel
Hotels in Ko Samui
Reviews of Ko Samui activities
Ko Samui at a glance
When is the busiest time for Ko Samui activities?
Book earlier for peak months
Koh Samui’s busiest month is July, with demand about 26% above a typical month, while March is the quietest, roughly 22% quieter — book early for July and expect easier availability and fewer crowds in March. Based on Klook historical booking data.
When is Ko Samui cheapest?
Find months that fit your budget. Prices in USD.
Activities are typically cheapest in July at around USD 17, roughly 74% below the May high (about USD 66); July’s low prices line up with the demand trough, so you may find both lower costs and lighter crowds then. Based on Klook booking data, July 2025 – June 2026.
How far ahead should you book?
Plan ahead so you don’t miss out
Most travellers book about 2 days ahead, with late bookings possible and flexibility for spontaneous plans; during the July peak you may still want to secure key activities earlier. Based on Klook booking data, February 2026 – July 2026.
Quick facts about Ko Samui
What to know before visiting Ko Samui
Koh Samui at a glance
Koh Samui is a popular beach destination where Tours, Outdoor & sports activities and Water activities lead bookings, and the island shows a clear yearly rhythm of demand. Klook data shows strong peaks in mid-summer and quieter pockets in early spring, so you’ll find both lively high season energy and calmer stretches for relaxation.
Best times to visit and how prices move
Demand peaks in July while March is the quietest month, according to Klook booking data. Prices, however, move differently: Klook’s data indicates July is typically the cheapest month for activities, while May is typically the priciest. That means you can enjoy peak-season atmosphere in July without higher activity prices, whereas late spring sees higher prices even where demand isn’t at its highest.
Tips for travellers
Most experiences on Klook for Koh Samui can be booked close to travel: typical bookings happen around two days ahead and many options remain bookable a day before. If you prefer planning, consider locking in bookings a few days earlier during the busier mid-year period to secure popular tours and water activities. Use Klook to compare available tours and time slots so you can choose quieter options or last-minute deals depending on your travel style.
FAQs about Ko Samui
When is the best time to visit Koh Samui?
When is the best time to visit Koh Samui?
The best time is around July, when demand on Klook peaks; bookings are highest in that month. That means more activities and options are available, though it can also be busier than other months.
When is the cheapest time to visit Koh Samui?
When is the cheapest time to visit Koh Samui?
In recent Klook booking data, July is typically the cheapest month with activity prices around ~USD 17 on average. That makes it up to roughly 74% cheaper than the priciest month on Klook, so you may find good savings then.
How far ahead should I book activities in Koh Samui?
How far ahead should I book activities in Koh Samui?
Book a few days ahead for most activities: typical advance bookings are about 2 days, with early planners booking around 4 days and last-minute bookings possible about 1 day before. This reflects recent Klook booking patterns for the destination.
How much do activities in Koh Samui typically cost?
How much do activities in Koh Samui typically cost?
In recent Klook booking data, activities averaged around ~USD 38. Popular categories show median prices such as ~USD 57 for tours and ~USD 56 for outdoor & sports activities, which helps set expectations.
What is Koh Samui best known for on Klook?
What is Koh Samui best known for on Klook?
Koh Samui is best known for tours, which account for the largest share of bookings on Klook. Outdoor and water-based activities also rank highly, so boat trips, snorkeling and island tours are common choices.
Explore more on Klook
Top attractions in Ko Samui
- 1 Koh Samui
- 2 Big Buddha Temple (Wat Phra Yai)
- 3 Fisherman's Village
- 4 Chaweng Night Market
- 5 Lamai Night Market
- 6 Lipa Noi Beach
- 7 Big Buddha Statue
- 8 Samui Elephant Kingdom Sanctuary
- 9 Coral Cove Beach
- 10 Tarnim Magic Garden
- 11 Tan Rua Waterfall
- 12 Samui Aquarium
- 13 Thongson Bay Beach
- 14 Paradise Park Farm
- 15 Chaweng Lake
- 16 Central Festival Samui
- 17 Namuang Safari Park
- 18 Bo Phut Beach
- 19 Lad Koh View Point
- 20 Wat Teepangkorn