New York
Conditions stay similar this week — check the hourly forecast at Mastic Beach for the cleanest windows.
Here's how the next 5 days are shaping up at Mastic Beach, New York. Each day is rated based on breaking wave height, swell period, and wind — updated hourly from the latest NOAA GFS run.
Tue, Jun 30: 1–2ft, 9s period, rated Poor. Not the most exciting day — 1ft and poor conditions with calm winds. Afternoon breeze fills in to 13mph.
Wed, Jul 1: 2–2ft, 6s period, rated Very Poor. Not the most exciting day — 1-2ft and very poor conditions with strong SW wind at 15mph.
Thu, Jul 2: 2–2ft, 6s period, rated Poor. Not the most exciting day — 2-3ft and very poor conditions with 16mph out of the SW.
Fri, Jul 3: 2–2ft, 6s period, rated Poor - Fair. First light looks cleanest — 2ft on S swell at 6s with light NW winds. Onshore flow builds through the day to 15mph, bringing conditions down to poor.
Sat, Jul 4: 1–2ft, 5s period, rated Poor. Pretty quiet out there — 1-2ft and mostly poor with gentle W breeze. Afternoon breeze fills in to 16mph.
Mastic Beach is a sandy beach break on Long Island's South Shore that picks up swell from northeastern and northwesterly directions, making it a reliable option during autumn swells and nor'easters. The beach offers forgiving sand bottom conditions ideal for progression, with mellow rolling waves that peel across the sandy seafloor. Located in a quieter residential area, this spot provides a more relaxed atmosphere compared to the busier Atlantic-facing beaches in the region.
Wave heights shown are breaking wave heights — the actual rideable wave size at this spot.
The current wave height at Mastic Beach is 1ft with a 9.1s swell period. Wind is SSW at 13mph and conditions are rated Poor. The forecast updates hourly so you can plan your session around the cleanest windows.
The current breaking wave height at Mastic Beach is 1ft, produced by a 1.6ft SE primary swell at 9s, a 1.7ft SW wind swell 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 Mastic Beach is Friday from 6 AM to 9 AM with 2ft waves, a 5.85s swell period, and conditions rated Poor - Fair. Check the hourly forecast for updates as conditions can shift.
Mastic Beach 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 Mastic Beach. 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.
Mastic Beach is a beach with a sand bottom, suited to beginner surfers. Mastic Beach is a sandy beach break on Long Island's South Shore that picks up swell from northeastern and northwesterly directions, making it a reliable option during autumn swells and nor'easters. The beach offers forgiving sand bottom conditions ideal for progression, with mellow rolling waves that peel across the sandy seafloor. Located in a quieter residential area, this spot provides a more relaxed atmosphere compared to the busier Atlantic-facing beaches in the region.
The prime season at Mastic Beach 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 Mastic Beach include strong currents, occasional sharp shells. Always check conditions before paddling out, respect local etiquette, and never surf alone if you're unfamiliar with the break.
Our Mastic Beach 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. Visit /public/accuracy for per-spot and regional performance metrics.
