Almost every beach worth a day in Phuket is on the west coast, facing the Andaman Sea, and almost all of them are reached by road. They differ in what surrounds them: a town and its nightlife at Patong, family hotels at Kata and Karon, a national park and the airport at Mai Khao, a quiet lake and no town at Nai Harn.
They also share the same weakness. From May to October the southwest monsoon sends big waves and rip currents onto this coast, the red flags go up, and people drown. On the day you visit, the flag on the beach matters more than anything written in a guide, including this one.
Skip to the short answer
The short answer
From December to March, most west-coast beaches are good for a swim: choose by what is behind the sand. From May to October, swim only between the red and yellow flags where lifeguards are on duty, and never when the red flag is up. Lifeguards work in the daytime only: do not swim after they leave.
Pick your beach
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A family beach in the dry season
Kata
About 1 km of sand with lifeguards, livelier than Kata Noi, calmer than Patong.
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A small bay that feels like a resort
Kata Noi
Just south of Kata; usually flat from December to March.
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A long, empty walk
Mai Khao
About 11 km in the north, inside a national park, with planes landing at the southern end.
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A cove you have to work for
Freedom Beach
By longtail from Patong or down a steep path.
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Nightlife on the doorstep
Patong
The busiest beach on the island, with Bangla Road behind it.
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A beach with a lake and no town
Nai Harn
In the south, very busy in December and January.
The red flag and the monsoon
The southwest monsoon reaches Phuket in May and lasts until October. In 2026 the Thai Meteorological Department declared the rainy season open on 15 May, with forecasts of 2 to 3 m waves from Phuket northwards. On the west coast this is the season of rip currents: strong channels of water running out from the beach, which pull even good swimmers away from the shore.
A red flag means swimming is prohibited. Two red and yellow flags mark out the area watched by lifeguards: swim between them. No flag at all does not mean the sea is safe; it usually means nobody is watching. Lifeguards work in the daytime only: once they have gone, nobody is watching anywhere. The three tourists who drowned at Karon, Kata and Bang Tao on 10 and 11 June 2025 went in under red flags.
Figures from the provincial administration, published in June 2026, count 56 drownings in Phuket province in three years, 20 of them at Karon. The beach-by-beach list it gave adds up to 54, so treat the breakdown with caution; the pattern is not in doubt.
If a current takes you, do not swim against it. Let it carry you, swim parallel to the beach until you are out of it, then come back in. In an emergency, call 1669 for an ambulance or 1155 for the tourist police.
When to go to the beach
In Phuket Town, February, then January, are the driest months, with about 24 and 30 mm of rain on average, and September and October the wettest, with more than 300 mm each (Thai Meteorological Department, averages 1981 to 2010). December and March are still dry. November and April are months of transition, with rain on roughly a third to a half of days. May is a monsoon month.
So: December to March for calm water almost everywhere; November and April with an eye on the flags; May to October for surf, quieter beaches and more care. Not every monsoon day is rough, and not every dry-season day is flat.
The north: Mai Khao, Nai Yang, Nai Thon
The three northern beaches are part of Sirinat National Park, close to the airport, and among the quietest on the island. Drinking alcohol and selling it are forbidden on the park's beaches, with fines of 5,000 baht and more after a warning.
Mai Khao
The longest beach · national park
About 11 km of coarse sand, the longest beach on Phuket, almost empty, with few loungers or vendors except at the southern end. At that end the airport runway meets the coast and planes land very low over the beach: signs forbid standing in the approach path, and the jet blast throws sand. Sea turtles nest here in some years; a leatherback laid eggs in March 2024. The sea shelves steeply close to the shore and the currents are strong in the monsoon; lifeguards are few for its length, and four people have drowned here in three years. Not for you if you want a swim with a lifeguard in sight.
Nai Yang
Near the airport · shallow and calm
A quiet, shallow beach under casuarina trees, with a local feel and more Thai families at the weekend. In the dry season the water is calm. A reef offshore breaks some of the waves, which is why guides call it one of the more sheltered west-coast beaches in the monsoon and advise staying inside the reef; there has still been one drowning here in three years. Not for you if you want nightlife.
Nai Thon
About 1 km · few loungers
A small, calm bay with few loungers. Calm in the dry season; strong shore-break in the monsoon. On 15 May 2026, the first day of the rainy season, a man was swept away here under red flags, out of reach of the lifeguards on duty. Not for you in the monsoon: wait for the dry season.
Bang Tao, Surin and Laem Sing
Bang Tao
A long open bay · Laguna
A long, open bay, with the Laguna resort complex towards the south and the village of Cherngtalay to the north; sources give its length as 6 to 8 km. It is rarely crowded. Lifeguards are posted. In June 2025 a swimmer drowned here under red flags, with "Beach Closed" signs up. Guides consider the northern end, sheltered by an islet, the most reliable in the monsoon, though the lagoon outlet there can pull like a current. Not for you if you want to walk out of your hotel into a town.
Surin
Small and smart · lifeguards
A short, chic beach of clear water, loungers and massage tables. Sources disagree on how dangerous it is in the monsoon, but the provincial figures count five drownings here in three years: treat it as a rough-sea beach from May to October. Not for you if you are a weak swimmer in the monsoon.
Laem Sing
A cove reached over rocks or by boat
A cove of about 300 m between granite boulders, just south of Surin. The stairs down from the road have been closed since 2017 over a land dispute. The way in now, according to a guide updated in October 2026, is a 15 to 20 minute path over rocks from the southern end of Surin, or a small boat from Surin, about 100 baht one way. The seabed drops quickly, there are submerged rocks and no lifeguards. Not for you with small children or in the monsoon, when the boat may not run.
Kamala, Kalim and Patong
Kamala
A village beach
A quieter village beach than Patong, with simple restaurants and longtails, calmer at its northern end. Calm on most days from November to April; rougher from May to October, with three drownings in three years. Not for you if you want Patong's nightlife on your doorstep: it is a road over the headland.
Kalim
North of Patong · rocks and surf
The northern tip of Patong's bay, cut off by a headland: a rocky shore rather than a swimming beach. From May to October it has a shallow reef wave for experienced surfers only. In October 2025 a father and his son were swept off the rocks by waves and rescued. Not for you if you want to swim.
Patong
The busiest beach · Bangla Road
About 3 km of sand in front of the island's nightlife district. It has lifeguards by day and night patrols on some stretches. It is also the only beach in Phuket covered by the national smoking ban since February 2018: smoking or vaping outside the designated areas can cost up to 100,000 baht. In the monsoon the red flags are up on many days; in June 2025, lifeguards pulled 86 people out of currents. Not for you if you want a quiet beach.
Paradise Beach
South of Patong · paid entry
Two small bays reached by a private road south of Patong, with a paid entrance; guides give 100 or 200 baht, sometimes with a lounger or a drink. The main bay is more beach club than hidden cove, with bars and a stage; the second is calmer. Less exposed than the big beaches, but rough on days of heavy swell. Not for you if you want it wild.
Freedom Beach
By longtail or a steep path
A crescent of about 300 m south of Patong, quieter than its neighbours, with one restaurant. By longtail from the southern end of Patong, about 10 minutes, for around 1,000 to 1,500 baht return for the boat, mainly from December to May; or down a steep path with ropes, 15 to 30 minutes, and harder on the way back up. Walkers are asked for a fee, 100 or 200 baht depending on the guide; boat arrivals are not. Not for you in the monsoon, when boats stop and the path is slippery.
Karon, Kata and Kata Noi
Karon
About 3 km · the most dangerous in the monsoon
A long, wide beach of pale sand, with most hotels across the road. It is the beach where the most people have drowned: 20 of the 56 deaths counted in three years. Just over 20 lifeguards work it, with posts about every 500 m, and in the monsoon they make three or four rescues a day. A green turtle laid eggs here in January 2026. Not for you if you plan to swim outside the flags from May to October; never under a red flag.
Kata
About 1 km · families and surf
Kata Yai on maps: about a kilometre of sand, more relaxed than Patong, popular with families and couples, with lifeguards. In the rainy season it is one of the island's surf beaches, with schools and boards for hire, and it is dangerous: five people have drowned here in three years, one under red flags in June 2025. One guide says the currents are strongest at its southern end. Not for you if you want it to yourself in high season.
Kata Noi
A small bay south of Kata
A small, calm bay below a headland, with three hotels along it and little parking. The sea is flat from November to April, with snorkelling at the rocky ends, and rough with red flags from May to October. A lifeguard patrol covers it by day. Sources differ on whether loungers can be hired by non-guests. Not for you if you arrive by car at midday in high season.
The south: Nai Harn and Ya Nui
Rawai, just east of Nai Harn and Ya Nui, is not a swimming beach: it is a working longtail harbour with a muddy bottom, where boats leave for the islands and seafood restaurants line the road.
Nai Harn
A bay with a lake behind it
A crescent bay with no town around it and a lake behind the beach; sources give its length as 600 m to almost 1 km. It is very busy in December and January. Lifeguards are posted. In the monsoon it has waves and surfers, and sources disagree on whether it is safer than its neighbours: one drowning was reported here in June 2024. Not for you if you want shops and bars within walking distance.
Ya Nui
A small cove near Promthep
A small cove between the Windmill Viewpoint and Promthep Cape, quickly full. Lifeguards are posted. The snorkelling is best between the beach and Koh Man, about 300 m out, a crossing in open water used by boats from Rawai: for confident swimmers only, from November to April. One source calls it almost always calm, even in the monsoon; others do not confirm it. Not for you if you need space to spread out.
Jellyfish
Jellyfish are more common in the monsoon, especially in shallow water after heavy rain. The governor of Phuket warned of box jellyfish in the region in November 2008. In October 2025 more than eight swimmers were stung at Patong and Kalim; lifeguards and the Department of Marine and Coastal Resources found no box jellyfish and pointed to another species. In May 2026 the department warned of Portuguese man o' war at Karon and on the west coast.
If you are stung: get out of the water, call 1669, do not rub, pour household vinegar over the sting for at least 30 seconds, and do not use fresh water or alcohol. Lifeguards at Patong carry vinegar.
Beach rules
Smoking. Banned on Patong beach since 1 February 2018, vaping included, with fines of up to 100,000 baht; smoking areas are set back from the sand. We found no source extending the ban to other Phuket beaches.
Alcohol. Forbidden on the beaches of Sirinat National Park: Mai Khao, Nai Yang, Nai Thon, and Layan and Sai Kaeo, small park beaches not covered here. Elsewhere the rules are less clear: check local signs, and never drink before swimming.
Loungers. Lounger operators may occupy only 10 per cent of a beach's area, a rule the authorities still cite. Loungers are common at the big beaches, but supply varies, and there are few or none at the small ones.
Compare the beaches
| Beach | Access | Lifeguards | Dry season | Monsoon |
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| Mai Khao | Road | Few | Steep shelf | Strong currents |
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| Nai Yang | Road | Not confirmed | Calm, shallow | Reef shelter (guides) |
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| Nai Thon | Road | Yes | Calm | Shore-break |
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| Bang Tao | Road | Yes | Calm | North end safer (guides) |
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| Surin | Road | Yes | Calm | Rough |
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| Laem Sing | Rocks or boat | No | Calm | Avoid |
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| Kamala | Road | Not confirmed | Calm | Rougher |
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| Kalim | Road | Not confirmed | Rocky | Surf |
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| Patong | Road | Day; night on some stretches | Calm | Red flags often |
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| Paradise | Private road, paid | Not confirmed | Calm | Some shelter |
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| Freedom | Boat or path | Not confirmed | Calm | Boats stop |
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| Karon | Road | Yes, every 500 m | Calm | Most drownings |
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| Kata | Road | Yes | Calm | Surf, red flags |
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| Kata Noi | Road | Day patrol | Flat | Red flags |
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| Nai Harn | Road | Yes | Calm | Waves |
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| Ya Nui | Road | Yes | Calm | Sources differ |
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