Surf Break

Lat Long: 20.51° S 57.40° E

St Martin WaveFinder

Issued: 9 am 17 Oct 2026 (local time)

Forecast update in  hr  min

Today's St Martin sea temperature is
24.4°C
0.7° 

St Martin surf forecast is for near shore open water. Breaking waves will often be smaller at less exposed spots.


St Martin surf forecast from 17 Oct 2026:

  • Best quality surf: Tuesday 20 Oct, 10PM (local time) - 4ft (1.2m), 15s period, SSW swell with cross-offshore winds.
  • Most powerful swell: Wednesday 21 Oct, 4AM (local time) - 5ft (1.5m), 15s period, SSW swell with 924 kJ wave energy.
  • Next surfable swell (1★+): Tuesday 20 Oct, 1AM (local time) - 3ft (0.9m), 13s period with SW swell.

Best Forecast Surf Conditions for St Martin this week:

The surf forecast for St Martin over the next 16 days: The first swell (rated 1 star or higher) is forecast to arrive on Tuesday (Oct 20) at 1AM. The primary swell is predicted to be 0.9m and 13s period. The wind is predicted to be cross-offshore as the swell arrives.

The most powerful waves expected at St Martin in the next 16 days are 1.5m 15s and forecast to arrive on Wednesday (Oct 21) at 4AM. Winds are predicted to be cross-offshore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 1.6m 7s period and expected on Sunday (Oct 18) at 10AM.

Wave TypeTime (+04) & Date Wave Height & Period
Next good surf (1 star+) 1AM (Tue 20th Oct)3ft (0.9m) 13s
Best Surf10PM (Tue 20th Oct)4ft (1.2m) 15s
Most Powerful 4AM (Wed 21st Oct)5ft (1.5m) 15s

Table - best surf conditions forecast for St Martin over the next 16 days.


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  • Live Wave Height (m)
  • Live Wind Speed (km/h)
  • Surf Rating (10 Max)
  • Ocean Swells (m)
  • Wind Speed (km/h)
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