Ao Sai Beach
Coastal areas · Thailand
Rating right now
Ao Sai Beach is a SW-facing sand beach on the Gulf of Thailand coastline near Coastal areas — it picks up SE–W swell and turns cleanest in a N–NE wind, with the most consistent surf through 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: ~29.4°C (84.9°F) on average
Jan
28.3°C
82.9°F · 26.9–29.5°C
Feb
28.8°C
83.8°F · 27.8–29.5°C
Mar
29.3°C
84.7°F · 28.3–30.5°C
Apr
30°C
86°F · 28.3–31.3°C
May
30.4°C
86.7°F · 28.8–31.8°C
Jun
30.1°C
86.2°F · 29–31.5°C
Jul
29.7°C
85.5°F · 28.7–30.9°C
Aug
29.7°C
85.5°F · 29–30.9°C
Sep
29.4°C
84.9°F · 28.5–30.4°C
Oct
29.2°C
84.6°F · 28–30.2°C
Nov
29.1°C
84.4°F · 27.7–30.1°C
Dec
28.7°C
83.7°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
SE–W
Best wind
N–NE
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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