Great Bay Beach
St. Martin · Saint Martin
Rating right now
Great Bay Beach is a S-facing sand beach on the Saint Martin shoreline, opening onto the Caribbean Sea — it catches SE–SW swell, and offshore NW–NE winds tidy the banks through year-round.
Today's surf at Great Bay Beach
Updated 01:04 spot time
Great Bay Beach surf report for Thursday 1 Oct: waves 0.9 m–1.0 m chest to head high, 0.7 m E swell at 5 s. Wind up to 35 km/h ESE. Water 30°C. Best surf window around 09:00 — fun (3/5) with 27 km/h SE wind.
Snapshot refreshed hourly — the live hourly forecast below updates in real time.
10-day forecast
Local time · updates hourly
Wave height & period
Wind
| Time | Rating | Waves | Swell | Wind | Air |
|---|---|---|---|---|---|
Water temperature by month
This month: ~29°C (84.2°F) on average
Jan
26.5°C
79.7°F · 25.4–27.5°C
Feb
26.3°C
79.3°F · 25.4–27°C
Mar
26.2°C
79.2°F · 25–27.3°C
Apr
26.7°C
80.1°F · 25.9–27.8°C
May
27.4°C
81.3°F · 25.9–28.7°C
Jun
28.1°C
82.6°F · 26.8–29.3°C
Jul
28.3°C
82.9°F · 27.1–29.7°C
Aug
28.8°C
83.8°F · 28–30°C
Sep
29°C
84.2°F · 28–30°C
Oct
29°C
84.2°F · 28–30.7°C
Nov
28.4°C
83.1°F · 27.7–29.7°C
Dec
27.4°C
81.3°F · 26.7–28.9°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–SW
Best wind
NW–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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Little Bay Beach
St. Martin · Saint Martin
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More beaches in St. Martin →see all spots in St. Martin, Saint Martin
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