New Jersey
Late morning into early afternoon looks best — 2-3ft with 8mph from the SW.
Late morning into early afternoon looks best — 2-3ft with 8mph from the SW.
Best window·Monday 6AM–9AM·3-4ft·Good
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.
Thu, Sep 3: 2–3ft, 6s period, rated Poor - Fair. First light looks cleanest — 2-3ft on ENE swell at 6s with 8mph SSW winds. Things get a bit scrappier as the day goes on.
Fri, Sep 4: 1–2ft, 8s period, rated Poor - Fair. Get out early for the best of it — 1-2ft waves on E swell at 6s and moderate W wind around 9mph. It gets a bit messier later in the day.
Sat, Sep 5: 1–2ft, 5s period, rated Poor. Dawn patrol is the move — 1-2ft on N swell at 3s with 12mph from the N. Conditions go downhill through the afternoon.
Sun, Sep 6: 3–4ft, 6s period, rated Very Poor. Early morning is your best window — 2-3ft waves on NE swell at 4s with 14mph NNE winds. It gets a bit messier later in the day.
Mon, Sep 7: 3–4ft, 10s period, rated Good. First light looks cleanest — 3-4ft on ENE swell at 8s with gentle NNW breeze. Things get a bit scrappier as the day goes on.
Two days at a glance. Swipe for later hours.Five days at a glance. Drag for later hours.
Poor - Fair today — get one free email when Diamond Beach turns Good.
Check Diamond Beach from the lineup
Forecasts, surf alerts, and live conditions in the Swell Intel iPhone app.
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 5.6s swell period. Wind is SSW at 8mph. 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 2.1ft E wind swell swell at 6s, a 1.8ft SE secondary swell at 9s, a 0.9ft 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 Monday from 6 AM to 9 AM with 3ft waves, a 7.5s swell period, and conditions rated 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. We also verify our offshore swell predictions against NOAA buoy measurements daily — see our accuracy page for those swell-verification metrics (buoys measure open-water swell, not breaking surf size).
