Ko Samui Surf Forecast and Surf Reports

(Gulf of Thailand)

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Ko Samui Surf Guide

Ko Samui in Gulf of Thailand is an exposed beach break that only works once in a while. Nov-April (Wet Season) provides best time of year for waves. Offshore winds are from the west northwest. Groundswells and windswells are equally likely and the best swell direction is from the east southeast. Waves at the beach are both lefts and rights. Unlikely to be too crowded, even when the surf is up. Watch out for dangerous rips.

Ko Samui Spot Info

Type:	Rating:	Reliability:	Todays Sea Temp*:
Beach	2	inconsistent	30.7°C*ocean temperature recorded from satellite

Surfing Ko Samui:

The best conditions reported for surf at Ko Samui occur when a East-southeast swell combines with an offshore wind direction from the West-northwest.

Hourly Forecast

16 Day Forecast

What's the best time of year to surf Ko Samui (for consistent clean waves)?

februaryBest Season: winter

The best time of year for surfing Ko Samui with consistent clean waves (rideable swell with light / offshore winds) is during Winter and most often the month of February. Clean surfable waves are typically found 5% of the time in February while 65% of the time it tends to be blown out. For the remaining 30% of the time it is considered too small by most surfers but may still be OK for beginners and groms at times.

clean

Surfable waves that hold up well for longer rides in prevailing cross-offshore, offshore or light wind conditions.

blown out

65%

Surfable sized waves that are of poorer quality due to prevailing onshore, cross-onshore or windy conditions (may be preferable for kitesurfing).

too small

30%

Waves usually considered too small for good surf. Some wave-magnet breaks may still work though if conditions are right (on occasion).

Explore Ko Samui Location Map

Interactive Ko Samui surf break location map. View information about nearby surf breaks, their wave consistency and rating compared to other spots in the region. Current swell conditions from local buoys are shown along with live wind speed and direction from nearby weather stations. Click icons on the map for more detail. The nearest passenger airport to Ko Samui is Cha Ian (Nakhon Si Thammarat) Airport (NST) in Thailand, which is 116 km (72 miles) away (directly). The second closest airport to Ko Samui is Trang Airport (TST), also in Thailand, 228 km (142 miles) away.

Map Icons:
Break
Live Wave Height (m)
Live Wind Speed (km/h)
Surf Rating (10 Max)
Ocean Swells (m)
Wind Speed (km/h)

Please note that some surf spot locations are approximate to protect their exact location while others are not shown at close zoom level.

Ko Samui Surf Forecasts:

Hourly Forecast

16 Day Forecast

Todays Surf Summary
Tuesday, 5 May 2026, 23:19 Local Time

m, °C	Tue	Wednesday 06
ft, °F	10PM	1AM	4AM	7AM
Wave (m)		ESE
Period (s)	-	4	-	-
Wind (km/h)
Wind State	on	on	on	on

What does Ko Samui look like?

Latest photos from Ko Samui. Upload your own or view all photos on the gallery page.

Credit: Pottsy

Ko Samui Sea Temperature

Sunny with very warm air temperatures, feeling like 29.0 °C once we account for any wind. Sea temperatures (30.7 °C) very warm too. Staying comfortable in the water at Ko Samui won't be a problem, but wear at least a rash-vest to keep the UV off.

Today, many surfers would wear a rashvest wetsuit.

Current Temp*: 30.7°C*ocean temperature recorded from satellite