New Jersey
Here's how the next 5 days are shaping up at Diamond Beach, New Jersey. Each day is rated based on breaking wave height, swell period, and wind — updated hourly from the latest NOAA GFS run.
Sun, May 10: 2–3ft, 8s period, rated Poor - Fair. A slow one — 2-3ft waves and poor - fair conditions with 8mph S winds.
Mon, May 11: 1–2ft, 8s period, rated Poor. Pretty quiet out there — 1-2ft and mostly poor with strong NNE wind at 13mph.
Tue, May 12: 1–2ft, 8s period, rated Poor. Pretty quiet out there — 1-2ft and mostly poor with 9mph from the N.
Wed, May 13: 1–2ft, 4s period, rated Poor. Pretty quiet out there — 1-2ft and mostly poor with 14mph out of the S. Winds do pick up a bit by the afternoon to 19mph.
Thu, May 14: 2–3ft, 6s period, rated Fair. Dawn patrol is the move — 2-3ft on SSE swell at 6s with 14mph out of the WNW. Things get a bit scrappier as the day goes on.
6s period — conditions are improving beyond your forecast
Free, simple, and takes 30 seconds.
Diamond Beach is a quiet stretch of Atlantic-facing shoreline near the southern tip of Cape May County, offering mellow waves ideal for beginners. The SE-facing coast picks up swells that wrap around the Cape May Peninsula from tropical systems and southerly storms, producing smaller, more manageable surf than the more exposed beaches further north. Light crowds and a relaxed atmosphere make it a peaceful option for surfers seeking uncrowded New Jersey lineups.
Wave heights shown are breaking wave heights — the actual rideable wave size at this spot.
The current wave height at Diamond Beach is 2-3ft with a 8.1s swell period. Wind is SSE at 10mph and conditions are rated Poor - Fair. The forecast updates hourly so you can plan your session around the cleanest windows.
The current breaking wave height at Diamond Beach is 2-3ft, produced by a 2.9ft SE primary swell at 8s, a 0.3ft SE secondary swell at 13s, a 0.5ft SSE wind swell swell at 2s. 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 Diamond Beach is Sunday from 5 PM to 8 PM with 3ft waves, a 8.1s swell period, and conditions rated Fair. Check the hourly forecast for updates as conditions can shift.
Diamond Beach works best with a SE swell and NW 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 Diamond 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.
Diamond Beach is a beach with a sand bottom, suited to beginner surfers. Diamond Beach is a quiet stretch of Atlantic-facing shoreline near the southern tip of Cape May County, offering mellow waves ideal for beginners. The SE-facing coast picks up swells that wrap around the Cape May Peninsula from tropical systems and southerly storms, producing smaller, more manageable surf than the more exposed beaches further north. Light crowds and a relaxed atmosphere make it a peaceful option for surfers seeking uncrowded New Jersey lineups.
The prime season at Diamond 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 Diamond Beach include rip currents, strong longshore drift, jellyfish, strong onshore wind chop. Always check conditions before paddling out, respect local etiquette, and never surf alone if you're unfamiliar with the break.
Our Diamond 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. See the forecast accuracy card above for per-spot and regional performance metrics.
