Shelter Island surf forecast from 17 Oct 2026:
- Best quality surf: Thursday 22 Oct, 5AM (local time) - 4.5ft (1.4m), 18s period, SE swell with cross-offshore winds.
- Most powerful swell: Thursday 22 Oct, 5PM (local time) - 8ft (2.4m), 19s period, ESE swell with 3,978 kJ wave energy.
- Next surfable swell (1★+): Wednesday 21 Oct, 8PM (local time) - 3.5ft (1.1m), 17s period with SE swell.
Best Forecast Surf Conditions for Shelter Island this week:
The surf forecast for Shelter Island over the next 16 days: The first swell (rated 1 star or higher) is forecast to arrive on Wednesday (Oct 21) at 8PM. The primary swell is predicted to be 1.1m and 17s period with a secondary swell of 0.5m and 6s. The wind is predicted to be glassy as the swell arrives.
The most powerful waves expected at Shelter Island in the next 16 days are 2.4m 19s and forecast to arrive on Thursday (Oct 22) at 5PM. Winds are predicted to be onshore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 1.3m 5s period and expected on Sunday (Oct 25) at 5AM.
| Wave Type | Time (HKT) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | 8PM (Wed 21st Oct) | 3.5ft (1.1m) 17s |
| Best Surf | 5AM (Thu 22nd Oct) | 4.5ft (1.4m) 18s |
| Most Powerful | 5PM (Thu 22nd Oct) | 8ft (2.4m) 19s |
Table - best surf conditions forecast for Shelter Island over the next 16 days.
- Map Icons:
Break
Live Wave Height (m)
Live Wind Speed (km/h)
Surf Rating (10 Max)
Ocean Swells (m)- Wind Speed (km/h)
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