Siam Beach
Coastal areas · Thailand
Rating right now
An open N-facing sand beach on the Andaman Sea near Coastal areas, Siam Beach works on NW–NE groundswell; SE–SW winds offshore, with conditions most reliable year-round.
10-day forecast
Local time · updates hourly
Wave height & period
Wind
| Time | Rating | Waves | Swell | Wind | Air |
|---|---|---|---|---|---|
Water temperature by month
This month: ~29.2°C (84.6°F) on average
Jan
28.4°C
83.1°F · 27.2–29.6°C
Feb
28.8°C
83.8°F · 27.7–29.6°C
Mar
29.2°C
84.6°F · 27.7–30.5°C
Apr
29.8°C
85.6°F · 28.8–30.7°C
May
30.2°C
86.4°F · 28–31.7°C
Jun
29.9°C
85.8°F · 29–31.3°C
Jul
29.6°C
85.3°F · 28.5–30.8°C
Aug
29.5°C
85.1°F · 28.5–30.7°C
Sep
29.2°C
84.6°F · 28.3–30.1°C
Oct
29°C
84.2°F · 27.4–30°C
Nov
28.9°C
84°F · 27.8–30.3°C
Dec
28.8°C
83.8°F · 27.7–30.1°C
25-year monthly averages from the NOAA OISST satellite record — typical range min–max, not a live reading.
Know before you go
Best swell
NW–NE
Best wind
SE–SW
Break type
Beach break
Best season
Year-round
Safety: Friendly by surf standards, but rip currents and drop-in etiquette still apply. Shifting sandbars create moving rip currents — learn to spot them and use them to get out back.
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