Overview

Kitesurf

Sai Kaew Beach (Diamond Beach) is the longest and most popular beach on Koh Samet in Rayong Province. The beach faces northeast toward the Gulf of Thailand and gets full exposure to the northeast monsoon from November to March.

Due to the heavy tourist traffic, kitesurfing here requires caution. The beach is wide with a sandy bottom and clear water. Best suited for intermediate riders who can navigate around swimmers and boats. Early morning or weekday sessions are recommended to avoid crowds. The NE monsoon provides consistent onshore to side-onshore winds.

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Spot forecast for Koh Samet - Sai Kaew Beach

Sunrise 06:04 · Sunset 17:53

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< 7 kn7–12 kn13–20 kn21–30 kn31–40 kn41+ kn Gusts Your minimum: 7 kn

Forecasts provided by Open-Meteo

Swell and waves

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Wave height: < 0.5 m 0.5–1 m 1–2 m 2–3 m ≥ 3 m

Swell data by Open-Meteo Marine

Tides

Heights above lowest astronomical tide, in the spot's local time. Computed 3 km from the spot.

Tuesday 20 October Low tide 03:06 · 0.7 m High tide 15:04 · 2 m
Wednesday 21 October Low tide 03:57 · 0.7 m High tide 15:02 · 1.9 m
Thursday 22 October Low tide 04:50 · 0.9 m High tide 14:48 · 1.8 m
Friday 23 October Low tide 05:46 · 1 m High tide 14:25 · 1.8 m Low tide 22:26 · 1.3 m
Saturday 24 October High tide 01:26 · 1.3 m Low tide 06:46 · 1.2 m High tide 14:01 · 1.7 m Low tide 21:11 · 1.1 m

Koh Samet - Sai Kaew Beach: when to go?

Rideable days and hours computed for a minimum wind of 7 knots · log in to set your own (foil, twin-tip…)

Season · peak

236h

in December · 26.5 rideable days

The season runs from October to January, peaking in December: 17 rideable days a month and 236 hours of usable wind, at 30 °C. The low point is April, at 0 days.

Rideable days per month

Wind strength when it is rideable

7-12 knots · 95%13-20 knots · 5%

When the spot works, wind sits mostly between 7 and 12 knots — 95% of rideable hours. Big-kite territory. The coldest month is July, at 29 °C. The wettest month is July, with 327 mm.

Monthly averages: Koh Samet - Sai Kaew Beach

Monthly averages — Koh Samet - Sai Kaew Beach — averaged over 2 years of records — Weather data by Open-Meteo.com — How it is calculated
Month	Rideable days	Usable wind	Temperature	Rain
January	13.5	113 h	31 °C	8 mm
February	3.5	28 h	31 °C	50 mm
March	5.5	31 h	31 °C	59 mm
April	0.0	1 h	32 °C	69 mm
May	0.5	2 h	31 °C	280 mm
June	0.0	0 h	30 °C	220 mm
July	0.0	0 h	29 °C	327 mm
August	0.0	0 h	30 °C	228 mm
September	0.0	0 h	29 °C	289 mm
October	6.5	56 h	30 °C	198 mm
November	19.5	182 h	30 °C	71 mm
December	26.5	236 h	30 °C	20 mm

Photo gallery of Koh Samet - Sai Kaew Beach

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Technical details of Koh Samet - Sai Kaew Beach spot

The spot works with winds from N, NNE, NE, ENE, E.

Rideable Not rideable

Spot opening date · Required level

Spot opening date: Open all year round
Required level: Intermediate

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Ogimet - Rayong (Thailand)14.5 kmsource ogimet

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Koh Samet - Sai Kaew Beach kitesurf spot