New York
Here's how the next 5 days are shaping up at Cupsogue, New York. Each day is rated based on breaking wave height, swell period, and wind — updated hourly from the latest NOAA GFS run.
Sat, May 16: 3–4ft, 9s period, rated Poor - Fair. Early morning is your best window — 3-4ft waves on ESE swell at 10s with glassy conditions. Wind fills in through the day, pushing up to 15mph from the SSW and dropping conditions to poor.
Sun, May 17: 3–4ft, 8s period, rated Poor - Fair. Dawn patrol is the move — 3-4ft on SSW swell at 6s with light winds out of the WSW. Wind fills in through the day, pushing up to 11mph from the SSW and dropping conditions to poor - fair.
Mon, May 18: 2–3ft, 8s period, rated Fair. Early morning is your best window — 3-4ft waves on S swell at 7s with moderate ENE wind around 8mph. Conditions go downhill through the afternoon.
Tue, May 19: 2–3ft, 8s period, rated Poor. Late morning into early afternoon looks best — 2-3ft with 9mph from the SW. Early on is a little rough — give it until mid-morning to shape up. Sea breeze fills back in by mid-afternoon so get on it early.
Wed, May 20: 3–4ft, 6s period, rated Poor - Fair. First light looks cleanest — 4-5ft on SE swell at 13s with moderate SW wind around 9mph. The SSW wind kicks in by afternoon — 15mph and poor by then.
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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.
Wave heights shown are breaking wave heights — the actual rideable wave size at this spot.
The current wave height at Cupsogue is 3-4ft with a 9.35s swell period. Wind is SW at 5mph and conditions are rated Fair. The forecast updates hourly so you can plan your session around the cleanest windows.
The current breaking wave height at Cupsogue is 3-4ft, produced by a 3.2ft ESE primary swell at 10s, a 2ft SSE secondary swell at 8s, a 0.5ft SW tertiary swell at 3s. 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.
Based on the current 5-day forecast, the best window to surf Cupsogue is Sunday from 6 AM to 9 AM with 4ft waves, a 6.25s swell period, and conditions rated Fair - Good. Check the hourly forecast for updates as conditions can shift.
Cupsogue works best with a SSE swell and NNW winds. Offshore winds groom the face of the wave, while onshore winds turn it sloppy. Cross-offshore conditions usually produce the cleanest shape.
Tide plays a big role at Cupsogue. Mid tide works for most beach breaks, while reef and point breaks often prefer higher or lower stages. Use the tide chart above to line up your session with the swell peak.
Cupsogue is a beach with a sand bottom, suited to intermediate surfers. 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.
The prime season at Cupsogue is fall, when swell direction, wind patterns, and water temps line up most consistently. Outside the peak season you can still score, but you'll need to watch the forecast closely for the right windows.
Common hazards at Cupsogue include strong currents, rip currents near inlet, shifting sandbars, crowds during peak swells, cold water in winter and spring. Always check conditions before paddling out, respect local etiquette, and never surf alone if you're unfamiliar with the break.
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. See the forecast accuracy card above for per-spot and regional performance metrics.
