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.
Sat, May 16: 2–3ft, 9s period, rated Poor. Early morning is your best window — 2-3ft waves on ESE swell at 10s with calm winds. Onshore flow builds through the day to 21mph, bringing conditions down to poor.
Sun, May 17: 2–3ft, 9s period, rated Fair. Get out early for the best of it — 3-4ft waves on SSE swell at 7s and light WSW winds. Wind fills in through the day, pushing up to 10mph from the SSE and dropping conditions to poor - fair.
Mon, May 18: 1–2ft, 8s period, rated Poor. A slow one — 1-2ft waves and poor conditions with light WSW winds. Afternoon breeze fills in to 10mph.
Tue, May 19: 2–3ft, 9s period, rated Poor - Fair. Dawn patrol is the move — 2-3ft on SE swell at 9s with moderate SW wind around 9mph. Wind fills in through the day, pushing up to 16mph from the S and dropping conditions to poor.
Wed, May 20: 2–3ft, 5s period, rated Poor - Fair. Get out early for the best of it — 2-3ft waves on SE swell at 8s and moderate SSW wind around 12mph. Onshore flow builds through the day to 18mph, bringing conditions down to poor.
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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 9.4s swell period. Wind is SSW at 7mph 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 Diamond Beach is 2-3ft, produced by a 2.4ft ESE primary swell at 10s, a 1.3ft SSE secondary swell at 9s, a 1ft SW 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 6 AM to 9 AM with 3ft waves, a 8.8s swell period, and conditions rated Fair - Good. 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.
