Koh Samui beaches

Which Koh Samui beaches are the best?

Koh Samui beaches are best on the east and north coasts: Chaweng for the party, the little coves south of it for snorkelling, and the long, quiet sand of the north for a lazy swim.

• Chaweng, the longest and busiest beach
• Lamai, Chaweng's quieter neighbour
• Silver Beach (Crystal Bay), for snorkelling
• Coral Cove, a small bay of boulders
• Choeng Mon, calm and sheltered
• Bophut, by Fisherman's Village
• Maenam, quiet and good for swimming
• Lipa Noi, on the calm west coast

Chaweng runs about 6 km and Silver Beach only about 250 m. Ask Tanner which three beaches fit your group's days.

Chaweng Beach

Chaweng is Koh Samui's main beach, the longest run of white sand on the east coast, with the island's nightlife right behind it.

Girl on a Zebra calls it the biggest, busiest and most popular beach on the island, and says the north end is calmer, good for a paddleboard.

Tip: start the day at the calm north end, then drift south as the bars wake up.

The full strip, bar by bar: our Chaweng guide. Ask Tanner where the group should set up for the day.

Chaweng or Lamai?

Which beach is better, Chaweng or Lamai? Chaweng for a party group, with the clubs and the most going on. Lamai for a slower day on the same coast.

Lamai runs about 4 km and is much quieter than Chaweng, with palms, plenty of sand and beach shacks, Girl on a Zebra says. She picks it for families, and says to get there early.

Tanner's pick: stay near Chaweng for the nights and give Lamai one lazy day.

They're a short drive apart. Ask Tanner to have the van waiting when you've had enough sun.

Snorkelling off the sand

The best beaches in Koh Samui for snorkeling are Silver Beach and Coral Cove, both between Chaweng and Lamai, with fish and coral right off the sand.

Silver Beach, also called Crystal Bay, is a tiny cove with big boulders in the water, and Pickyourtrail says its rocky edges make for excellent snorkelling.

Coral Cove, on the same stretch, is smaller still, and Pickyourtrail says the water is clearest in the morning.

Tip: Girl on a Zebra had Silver Beach almost to herself between 7 and 9am in December. Go early, and ask Tanner to have the van at the villa by 7.

Calm water for swimming

The best beaches in Koh Samui for swimming are Choeng Mon, Maenam and Lipa Noi, with the calmest, shallowest water.

Choeng Mon is a 700 m bay of calm, shallow water, Bangkok Airways says, and it's the easiest swim near Chaweng.

Maenam has calm water and a shallow shoreline, Pickyourtrail says, and so does Lipa Noi on the west coast.

Tip: Girl on a Zebra rates Thongson, a small bay in the north, the best spot on the island for an actual swim. Ask Tanner to fit it into your quiet day.

Bophut and the north coast

Bophut is the north coast's liveliest beach, a 2 km crescent beside Fisherman's Village.

It's less a beach day than a beach evening: Girl on a Zebra goes for the beach bars, the sunset drinks and the fire show at Coco Tam's.

The Friday Walking Street in Fisherman's Village starts at 5pm and is busiest from about 7 to 8:30pm, so get there early for a table.

See things to do in Koh Samui, and ask Tanner to make Friday your Bophut night.

The best time for the beaches

You can swim all year on the sheltered beaches, and the best time to visit Koh Samui's beaches is January to August, when the sea is calmest.

Samui is driest from February to April and good through August, and wettest from October to December, worst in November, the Thai Meteorological Department says. November brings about 445 mm of rain, and February, the driest month, about 64 mm.

From October to December, Pickyourtrail says, the exposed coasts get rough waves and poorer visibility, so swim on the sheltered beaches and save the snorkelling for a calm morning.

Check the best time to visit Koh Samui, then ask Tanner which weeks suit your beach days.

Where to base the group

It depends on the trip: Chaweng for the party, Choeng Mon and Bophut for a calmer stay, and Maenam for quiet.

For a group, a pool villa on the northeast between Chaweng and Choeng Mon is the best base, close to the clubs and the calm beaches.

Villas start from ฿18,500 a day.

See Koh Samui villas, and ask Tanner to hold one near Choeng Mon.

And the prettiest in Thailand?

It's a matter of taste, but my picks are the limestone bays of the Andaman coast, like Maya Bay on Phi Phi and Railay in Krabi.

To land on Phi Phi, the national park charges foreign adults ฿400, the Tourism Authority of Thailand and the Department of National Parks say, and Maya Bay closes from 1 August to 30 September under the park closure notice in the Royal Gazette (9 January 2026).

On Koh Samui, Silver Beach and Choeng Mon are the prettiest.

The rest of the country: the best beaches in Thailand. Ask Tanner if the trip can take in both coasts.

Chaweng after dark

After the beach, Samui's evening runs from Chaweng's beach clubs to its bars and clubs.

Licensed entertainment venues in Koh Samui district and licensed venues inside hotels may open until 4am; ordinary bars and restaurants close earlier, usually by 2am.

Our host meets the group and walks them straight in.

See ARKbar and our Koh Samui guide, and ask Tanner to book the table.

The eight beaches side by side

Here are all eight Koh Samui beaches on one screen, so the group can split the days.

Pick one party beach, one snorkel beach and one calm beach, and you've seen the best of the island. Ask Tanner to put them in the right order.

The west coast for the sunset

The east coast gets the sunrise and the crowds. The west coast gets the sunset and almost nobody else.

Lipa Noi has calm, shallow water and a long stretch of sand that faces the sunset.

Further south, Taling Ngam is quieter still, and Pickyourtrail suggests a snorkel there in the late afternoon, before the sun goes.

Drive over around 4, swim, watch the sun go, and be back in Chaweng for dinner. Ask Tanner to have the van waiting.

Koh Samui beaches in short

• What it is: Chaweng is Koh Samui's main beach, about 6 km of white sand on the east coast, with the nightlife behind it.

• Silver Beach, also called Crystal Bay, is the best snorkelling on Samui without a boat.
• Choeng Mon, Maenam and Lipa Noi have the calmest water for swimming.
• Lamai is the quieter choice next to Chaweng, with about 4 km of sand.
• The sea is calmest from January to August, and November is the wettest month.
• For a group, the best base is a pool villa between Chaweng and Choeng Mon.

Checked October 2026.

Next: plan your beach days

The next step is to pick your beaches: Chaweng for the base, Silver Beach for a snorkelling morning, and Choeng Mon for a calm swim.

Then add the villa, the boat and the clubs, with the van waiting between them.

Plan it with Tanner, and he sends back the plan for your group.