Before it on the ring road
Tong Sai Bay
6.1 km north of Chaweng Beach
Tong Sai Bay on Koh Samui is a ~100 m private cove inside Garrya Tongsai Bay Samui (open since 1987), 10 minutes from the airport.
Right now
Month by month
Pick a month. The water, the swim call, the crowds and the sun all follow your pick, here and further down the page.
CalmChoppyRough Rain
Dip January
A short dip in choppy water
The sea on this coast turns choppy this month and the shallows can go murky. Stay in your depth.
East coast Sea 28 °C Sunrise 06:40 Choppy
Swim February
Good swimming water
Calm sea on this coast this month. Swim within your depth: there is no lifeguard on most Samui beaches.
East coast Sea 28.5 °C Sunrise 06:39 Calm
Swim March
Good swimming water
Calm sea on this coast this month. Swim within your depth: there is no lifeguard on most Samui beaches.
East coast Sea 29 °C Sunrise 06:27 Calm
Swim April
Good swimming water
Calm sea on this coast this month. Swim within your depth: there is no lifeguard on most Samui beaches.
East coast Sea 30 °C Sunrise 06:10 Calm
Swim May
Good swimming water
Calm sea on this coast this month. Swim within your depth: there is no lifeguard on most Samui beaches.
East coast Sea 30 °C Sunrise 05:59 Calm
Swim June
Good swimming water
Calm sea on this coast this month. Swim within your depth: there is no lifeguard on most Samui beaches.
East coast Sea 30 °C Sunrise 06:00 Calm
Swim July
Good swimming water
Calm sea on this coast this month. Swim within your depth: there is no lifeguard on most Samui beaches.
East coast Sea 29.5 °C Sunrise 06:07 Calm
Stay out August
Stay on the sand
Rough water on this coast this month. Watch the flags and keep out of the waves.
East coast Sea 29.5 °C Sunrise 06:11 Rough
Stay out September
Stay on the sand
Rough water on this coast this month. Watch the flags and keep out of the waves.
East coast Sea 29 °C Sunrise 06:09 Rough
Stay out October
Stay on the sand
Rough water on this coast this month. Watch the flags and keep out of the waves.
East coast Sea 29 °C Sunrise 06:08 Rough
Stay out November
Stay on the sand
Rough water on this coast this month. Watch the flags and keep out of the waves.
East coast Sea 29 °C Sunrise 06:14 Rough
Dip December
A short dip in choppy water
The sea on this coast turns choppy this month and the shallows can go murky. Stay in your depth.
East coast Sea 28.5 °C Sunrise 06:28 Choppy
Swim
Year-round
Enough depth to swim close to shore in every month of the year.
Snorkel
Sea
ChoppyCalmCalmCalmCalmCalmCalmRoughRoughRoughRoughChoppy
28 °C water, 125 mm of rain on 8 days.28.5 °C water, 65 mm of rain on 4 days.29 °C water, 115 mm of rain on 5 days.30 °C water, 85 mm of rain on 6 days.30 °C water, 130 mm of rain on 11 days.30 °C water, 135 mm of rain on 10 days.29.5 °C water, 115 mm of rain on 11 days.29.5 °C water, 100 mm of rain on 10 days.29 °C water, 120 mm of rain on 11 days.29 °C water, 295 mm of rain on 16 days.29 °C water, 445 mm of rain on 16 days.28.5 °C water, 265 mm of rain on 12 days.
Calm February to July
Sand
White, fine
Soft, fine sand underfoot, easy on bare feet.
No tidal flats
Crowds
Lively
Peak season on the island: more people on every beach.Peak season on the island: more people on every beach.Shoulder season: a steady trickle of visitors.Shoulder season: a steady trickle of visitors.Low season island-wide. You may have long stretches to yourself.Low season island-wide. You may have long stretches to yourself.Shoulder season: a steady trickle of visitors.Shoulder season: a steady trickle of visitors.Low season island-wide. You may have long stretches to yourself.Low season island-wide. You may have long stretches to yourself.Low season island-wide. You may have long stretches to yourself.Peak season on the island: more people on every beach.
Island busy this month
Sunrise
06:4006:3906:2706:1005:5906:0006:0706:1106:0906:0806:1406:28
Comes up straight out of open water.Comes up straight out of open water.Comes up straight out of open water.Comes up straight out of open water.Comes up behind the island's own hills, about 2.6 km away: light first, sun later.Comes up behind the island's own hills, about 2.4 km away: light first, sun later.Comes up behind the island's own hills, about 2.4 km away: light first, sun later.Comes up straight out of open water.Comes up straight out of open water.Comes up straight out of open water.Comes up straight out of open water.Comes up straight out of open water.
Kids
2 of 3
Shallow, gentle water for wading. No lifeguard, so stay close.
Kids rating
Food
6 places
Green Mango Club, Ark Bar, Hush Bar
Village prices
After dark
3 of 3
One of the island's party beaches: busy until late.
Nightlife rating
The story
10 min read
Key facts
Koh Samui Chaweng Beach is about 7 km of fine white sand on the island’s east coast, split into three sections (North Chaweng, Central Chaweng and Chaweng Noi) that swim and feel very differently. It’s the island’s longest, busiest, and most developed beach, with everything from beach clubs and jet skis to a shopping mall and the most concentrated nightlife in the Gulf of Thailand.
The sand is fine and white, roughly 40-50 meters wide in places, the water is warm (25-28 degrees C), and you can swim most of the year, with one big exception: the northeast monsoon (roughly October to November) brings rough surf and red flags to the main strip. The airport is about 15 minutes away. This page covers the beach itself; for where to stay, nightlife and getting around the area, use the Chaweng area guide.
Reading the beach from north to south: the quiet north end near Soi Solo, then the public beach access by Chaweng Walking Street, the busy central strip (Ark Bar and most sunbed rows), a stretch of resorts, and finally the rocky headland that separates Chaweng Noi. The coordinates of the middle of the beach are about 9.527 N, 100.062 E. Behind the sand, Chaweng Beach Road runs parallel the whole way, so you can step off the beach at almost any point. From Chaweng Noi, the Lad Koh viewpoint looks back over the whole curve.
| Section | Character | Swimming | Best for |
|---|---|---|---|
| North Chaweng | Wide, fewer sunbeds, resort belt | Offshore reef shelters it, most reliable | Families, quiet beach days |
| Central Chaweng | Busiest kilometre on Samui | Fine in calm months, rough in monsoon | Beach clubs, water sports, nightlife |
| Chaweng Noi | About 1 km, calm, upscale | Sheltered and clear | Couples, resort stays |
The quietest third. Wider beach, fewer sunbeds, more space between hotels. An offshore reef close to shore protects this section from high waves and strong currents, making it the most dependable swimming spot on Chaweng year-round, including during monsoon season. The far north end is where resorts like Anantara Lawana sit, with a narrower beach and fewer crowds than the centre.
The main strip: wall-to-wall sunbed rentals, beach bars playing music, water sports operators, food vendors, and a constant flow of people. Behind the beach, Chaweng Beach Road runs parallel with restaurants, shops, 7-Elevens, and the entrance to Soi Green Mango. Ark Bar occupies 150 meters of beachfront here and is the gravitational center of the beach’s day and evening scene.
The southern extension, separated by a rocky headland. Chaweng Noi is shorter (about 1 km), calmer, and more upscale. The water is sheltered and exceptionally clear: possibly the best swimming conditions on Samui. Several luxury resorts (including Vana Belle) have their own beach sections here. The full profile is on the Chaweng Noi beach page.
Yes, for most of the year: the water is warm and gently shelving, and the north and Noi sections stay swimmable even when the centre is choppy. The main strip is most exposed from about September to November, when the northeast monsoon pushes swell onto the east-facing coast, and red flags (where posted) mean stay out. Rip currents are more likely after storms.
The best weather for Chaweng Beach is roughly December to April, with calm seas, blue sky and peak prices; the worst is October and November. Climate averages put October near 300 mm of rain and November higher (about 445-490 mm across sources), the wettest months of the year, and the rainy season typically runs late October to mid-December. Air temperatures sit around 28-31 degrees C through the year.
| Season | Months | Conditions | Beach verdict |
|---|---|---|---|
| Dry | Dec-Apr | Best weather, calm seas, peak prices and crowds | Best overall |
| Hot | May-Aug | Hotter, occasional showers, fewer tourists, east coast still calm | Good value |
| Monsoon | Sep-Nov | Heavy rain possible, rough seas on the east coast, lowest prices | Worst for swimming |
Chaweng has the best sand on Samui and the most facilities, but it is also the most crowded and commercial beach on the island. Good: fine white sand, warm water, wide choice of sunbeds, food and sports within a few steps. Less good: jet-ski noise in the centre, vendors, evening music, and rough water in monsoon. If you want the prettiest quiet bay, look at Lamai, Choeng Mon or Maenam; for a direct comparison, see Chaweng vs Lamai.
Sunbeds cost about 100-200 THB per day and are often free if you order food or drinks from the attached restaurant (listings vary). Central Chaweng has the island’s biggest beach clubs. Ark Bar has a walk-in beachfront sunbed at a 300 THB minimum spend; its pool party is adults only (18+) from 21:00, and sources disagree on whether the club opens at 10:00 or 14:00, so check before you go. SEEN and Cabanas also sit on this stretch. Compare them in the beach clubs guide.
Chaweng has the highest concentration of water sports operators on Samui, mostly in the central section. Most activities need no advance booking.
| Activity | Approximate Cost | Notes |
|---|---|---|
| Jet skiing | 1,500-2,000 THB/30 min | Central beach; negotiate firmly |
| Parasailing | 1,000-1,500 THB/flight | Tandem available; 10-15 min airtime |
| Paddleboarding (SUP) | 500-800 THB/hour | Best in the morning when water is calmest |
| Kayaking | 300-500 THB/hour | Singles and doubles |
| Banana boat | 500-700 THB/ride | Group rides, popular with families |
| Boat wakeboarding | About 2,000 THB/15 min | Khalifa Samui in Chaweng; there is no cable park on Samui |
Operators at Lamai and Chaweng have been reported to claim pre-existing damage and demand large compensation. Book through your hotel or a reputable tour operator, photograph the machine before you ride, and never leave your passport as a deposit. See the scams guide.
The beach is the daytime draw; the rest of Chaweng is covered in the area guide. A short map of what sits behind the sand:
Chaweng is the closest major beach to Samui Airport, about 15 minutes by car. The airport taxi counter uses fixed zone fares (500-1,500 THB across the island); Grab cannot pick up inside the terminal. The walk-through on fares and vans is in the airport to Chaweng guide.
| From | Drive time |
|---|---|
| Airport | About 15 min |
| Bophut | About 15 min |
| Lamai | About 15 min |
| Nathon | 30-40 min |
The public beach entrance is near Chaweng Walking Street, and beach access is possible between most hotels. Central Chaweng is walkable; songthaews run along the main road, and scooters (about 200-300 THB/day) help beyond the strip. Negotiate taxi fares in advance: no meters.
| Traveler Type | Fit | Why |
|---|---|---|
| Party seekers | Excellent | Soi Green Mango, Ark Bar, beach clubs |
| First-time visitors | Excellent | Beach, food, shopping, nightlife and water sports in one place |
| Water sports fans | Excellent | Highest concentration of operators on Samui |
| Families | Good | Use North Chaweng or Chaweng Noi |
| Couples seeking romance | Mixed | Central is busy; try Chaweng Noi, Bophut or Lamai |
| Budget travelers | Mixed | Cheapest beds on Samui, but tourist markup on food and drinks |
| Serenity seekers | Poor | Go to Maenam or Bang Po |
It has the best sand (fine, white) and the most facilities, but “best” depends on what you want. Chaweng is best for action, nightlife, and water sports. Bophut is best for character and dining. Lamai is best for value and laid-back vibes. Maenam is best for quiet.
About 7 km including Chaweng Noi, making it the longest beach on Koh Samui (some sources give 6 km for the main strip alone). The main strip (North to Central) is about 5-6 km, with Chaweng Noi adding about 1 km south of the headland.
Yes, most of the year. North Chaweng and Chaweng Noi are the calmest sections; the central strip is fine in calm months (roughly February to August) but rough with red flags during the October-November monsoon. Check flags and avoid the water after storms because of rip currents.
Yes. The sand is continuous through North and Central Chaweng, and Chaweng Beach Road runs parallel, so you can leave the beach at most points. The rocky headland separates Chaweng Noi, which you reach by road rather than along the sand.
Generally safe. The main risks are scooter accidents (wear a helmet, get insurance), jet ski damage scams (book through your hotel), rough surf in monsoon, and petty theft on the beach (don’t leave valuables unattended). The nightlife area is busy but not dangerous: use normal urban precautions.
About 15 minutes by car. The airport taxi counter uses fixed zone fares (500-1,500 THB across the island), and Grab can’t pick up inside the terminal.
Nearby
What is near
The nearest temples, waterfalls, hikes and beaches, each with the straight-line distance and direction. Point at a name to find its pin.
Getting hereStraight-line distances to the places most visitors come from.
Sunrise
From the sand
Chaweng Beach looks east. Pick a month to see where the sun meets the horizon, and what stands in front of it.
06:40January06:39February06:27March06:10April05:59May06:00June06:07July06:11August06:09September06:08October06:14November06:28December
Sun bearing from the middle of the beach, computed from its coordinates and the coastline outlines, mid-month.
This coast
Along the ring road
Chaweng Beach is No. 17 of 34 round the ring road. Next door: Tong Sai Bay one way, Chaweng Noi Beach the other.
Route 4169, the ring road, runs behind every beach on this stretch
Before it on the ring road
6.1 km north of Chaweng Beach
Tong Sai Bay on Koh Samui is a ~100 m private cove inside Garrya Tongsai Bay Samui (open since 1987), 10 minutes from the airport.
After it on the ring road
2.4 km south of Chaweng Beach
Chaweng Noi Beach on Koh Samui: a sheltered 1 km cove 5 minutes south of Chaweng, with calm swimming, resorts and villas.