Koh Samet Beach
A scenic island escape near Rayong, offering white sand beaches and clear waters within easy reach of Bangkok.
Plan your visit
Check Monsoon Windows
Andaman coast beaches (Phuket, Krabi) have rough seas May–October. Gulf beaches (Samui, Hua Hin) are roughest October–December. Plan your beach trip around these windows for calm water and safe swimming.
Details
Tours that include Koh Samet Beach
Skip-the-line entry, guided visits and day-tour combos around Koh Samet Beach.
Why go, and how to do it well
Situated off the coast of Rayong in the Gulf of Thailand, Koh Samet is a popular island destination known for its relatively accessible location — roughly 200 kilometers from Bangkok — making it a favoured weekend retreat for both locals and international travelers. The island sits within a national park, which has helped preserve much of its natural shoreline, and the beaches here are characterized by fine white sand and calm, clear waters suited to swimming and relaxing.
Visitors can expect a range of atmospheres depending on which stretch of beach they choose. The main beach areas, particularly along the eastern coast, offer a mix of beachside bars, seafood restaurants, and sun loungers, while quieter coves further south provide a more secluded experience. Water activities such as snorkeling and kayaking are readily available, and the island's compact size makes it easy to explore multiple spots in a single visit.
Written by Mac Kiley · Updated Sep 2026
Stay within reach of Koh Samet Beach
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Best rated within a 15-minute walk
Tours that include Koh Samet Beach
Skip-the-line entry, guided visits and day-tour combos around Koh Samet Beach.
Around here, on foot
Well-rated places within a short walk of Koh Samet Beach, nearest first. Minutes are at an easy pace in the heat.
Experience hints
Pair your visit. After Koh Samet Beach, round out your day in Koh Samet with contrasting stops nearby.
Koh Samet Beach, Unnamed Road, Tambon Phe, Amphoe Mueang Rayong, Chang Wat Rayong 21160, Thailand
Open in Google MapsMore beaches nearby
All within 14 min walk of Koh Samet Beach.
Ao Phai
A scenic white-sand beach on Koh Samet with waterfront dining, relaxed resorts, and clear coastal views.
Ao Hin Khok
A scenic rocky beach on Koh Samet with clear waters and a laid-back atmosphere, ideal for swimming and relaxing.
Sai Kaew Beach
A popular white-sand beach on Koh Samet, busy with speedboats and backed by an upscale resort.
Luke Yon Bay
A scenic bay on Koh Samet offering calm waters and a relaxed escape from busier island beaches.
Tips for Visiting Beaches
Go Early for Empty Sand
Even the busiest beaches are nearly deserted before 9 AM. Sunrise walks on Kata, Chaweng, or Railay are magical — and you'll beat the heat for a morning swim.
Use Reef-Safe Sunscreen
Many Thai marine parks ban chemical sunscreens that damage coral. Bring reef-safe (mineral/zinc-based) sunscreen from home — it's harder to find and pricier in Thailand.
Explore Beyond the Main Strip
Every popular beach area has quieter alternatives nearby. Rent a scooter and ride 10 minutes from Patong to find Freedom Beach, or head to Phuket's northeast coast for nearly empty shores.
Also popular in Koh Samet
O Restaurant
Beachfront resort restaurant on Koh Samet serving all-day dining from breakfast through evening.
Nuanthip Pier
A working ferry terminal, not a sight, so get your ticket, get on the boat, get to the island.
Rasta Bar Koh Samet
A laid-back reggae-themed bar on Koh Samet with a relaxed island vibe and solid opening hours.
Similar Beaches across Thailand
Tawaen Beach
Ko Lan's biggest beach, great water, but come early and don't expect peace from the jet skis.
Bang Bao Beach (Koh Kood)
Bang Bao Beach is Koh Kood's postcard bay — a sheltered, palm-fringed crescent on the island's west coast where shallow, bathtub-calm water grades from clear to aquamarine over clean sand. A long wooden pier stretches across the bay, resorts sit low-key behind the palm line, and even in high season
Railay Beach
Boat-only limestone drama and clean water, best before the longtails arrive and again at low tide.
Sunset Beach
A tranquil west-facing beach on Koh Lipe, known for calm waters and vivid evening sunsets.