Swell Intel

Cupsogue Surf Forecast, New York

New York

West Dune Rd. 4-5ftMastic Beach4-5ftFire Island3-4ft
Cupsogue surf spot

Current Conditions

Poor
Wave Height
4-5ft
chest to head high
Swell Period
7.5s
Wind
14mph
SW / Gusts 28mph
Conditions
Poor
Active Swells
Wind Swell
8.1ft @ 8sSSW

Nearest Webcam

Daily Forecast

3 of 5 days
Tue, Mar 314-5ft
Poor
6am9am12pm3pm
Wed, Apr 16-7ft
Poor

Midday is the call — 5-6ft waves with 13mph from the SW and poor - fair conditions. It's a bit wonky first thing but settles down.

6am9am12pm3pm
8s S|9-16mph SW
Thu, Apr 22-3ft
Poor - Fair

Pretty quiet out there — 2-3ft and mostly poor - fair with 16mph NE winds.

6am9am12pm3pm
7s S|14-16mph NE
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Sat
4ft
Swell building Sat, Apr 4Fair

6s period — conditions are improving beyond your forecast

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Forecast Charts

Cupsogue Surf Spot Guide

Break
Beach
Bottom
Sand
Level
Intermediate
Crowd
Moderate
Best Swell
SSE
Best Wind
NNW
Season
Fall

Cupsogue is a quality beachbreak located at the western tip of Westhampton Beach on the South Shore of Long Island, New York, where the Atlantic Ocean meets Moriches Inlet. The spot picks up south and southeast swells well and produces punchy, powerful peaks that can deliver fast, hollow waves when conditions align — particularly during fall hurricane swells. Its position near the inlet creates some dynamic sandbar formations, giving surfers a variety of peaks to choose from along this scenic stretch of New York coastline.

Strong currentsRip currents near inletShifting sandbarsCrowds during peak swellsCold water in winter and spring

Wave heights shown are breaking wave heights — the actual rideable wave size at this spot.

Cupsogue Surf Forecast FAQ

What is the current surf forecast for Cupsogue?
The current wave height at Cupsogue is 4-5ft with a 7.5s swell period. Wind is SW at 14mph. Conditions are rated Poor.
How accurate is the Cupsogue surf forecast?
Our Cupsogue forecast uses NOAA GFS and other weather models combined with spot-specific bathymetry to calculate breaking wave heights. Short-range (1-3 day) forecasts are most reliable. Extended forecasts show general trends.
What is the breaking wave height at Cupsogue?
The current breaking wave height at Cupsogue is 4-5ft, produced by a 8.1ft SSW wind swell swell at 8s. Breaking wave height is the actual rideable wave size at the shore — calculated from offshore swell data using this spot's coastal bathymetry — not the raw buoy reading.
When is the best time to surf Cupsogue?
Based on the current 5-day forecast, the best window to surf Cupsogue is Wednesday from 3 PM to 6 PM with 4ft waves, a 7.95s swell period, and conditions rated Fair - Good. Check the hourly forecast for updates as conditions can shift.