
Surat Thani · Surat Thani · Thailand
Koh Samui Beach
Samui contains multitudes—party beaches pulsing until dawn, family-friendly crescents with rope swings over turquoise shallows, deserted stretches requiring scooter navigation through coconut plantations. The island rewards exploration beyond the resort brochure.
Reading live conditions…
Live from Open-Meteo · sea surface temperature and wave data modelled at 1-km grid resolution for Koh Samui Beach. Numbers refresh at the hourly tick.
- Purity
- 0%
- Conditions
- 0%
- Crowd
- 0%
- Vibe
- 0%
The OnlyBeaches Index weighs four pillars against your chosen persona. Purity comes from water clarity and air-quality heuristics; Conditions from Open-Meteo waves, wind and temperatures; Crowd from historical patterns; Vibe from nearby events within 50 km. The score rebalances throughout the day.
Samui contains multitudes—party beaches pulsing until dawn, family-friendly crescents with rope swings over turquoise shallows, deserted stretches requiring scooter navigation through coconut plantations. The island rewards exploration beyond the resort brochure.
Photos
8 captures from Koh Samui Beach
About this beach
Where it is
Koh Samui Beach
Surat Thani, Surat Thani, Thailand
9.5125°, 100.0135°
Top things to do
At Koh Samui Beach
Beach-hopping exploration
Scooter around the coastal ring
Night market feasting
Fisherman's Village offers evening stalls
Coral garden visits
Protected bays host healthy reefs
Water sports variety
Jet skis to paddleboards available
Near this beach
Places, rentals, tours and events within walking and driving distance of Koh Samui Beach.
Questions people actually ask about Koh Samui Beach.
Is Koh Samui Beach safe for swimming and water activities?
Swimming safety at Koh Samui beaches varies by location and season. Popular beaches like Chaweng and Lamai generally have lifeguards during peak season and safe swimming conditions from December to April. During monsoon months, red flags warn of dangerous currents and rough waves. The island's white sand beaches typically have gradual slopes suitable for swimming. Water sports operators follow safety standards at established beaches. Always observe warning flags, swim in designated areas, avoid swimming during storms, and be cautious of occasional jellyfish during certain months.
When is the best time to visit Koh Samui Beach?
The best weather at Koh Samui occurs from December to April, with sunny skies, calm seas, and low rainfall. This high season offers perfect beach conditions, though it's also the busiest and most expensive period. February and March typically have the calmest weather. Koh Samui's microclimate means it can be pleasant year-round, with the rainy season being less severe than other Thai islands. For good weather with fewer crowds and lower prices, consider visiting in January or late April-May before monsoon season begins in October-November.




