Surf Forecasts:
Diamond Beach surf forecast from 6 Aug 2026:
- Most powerful swell: Saturday 8 Aug, 2AM (local time) - 4.5ft (1.3m), 6s period, SSW swell with 113 kJ wave energy.
Best Forecast Surf Conditions for Diamond Beach this week:
The most powerful waves expected at Diamond Beach in the next 16 days are 1.3m 6s and forecast to arrive on Saturday (Aug 08) at 2AM. Winds are predicted to be cross-onshore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 0.5m 3s period and expected on Saturday (Aug 08) at 11PM.
| Wave Type | Time (EDT) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | - | - |
| Best Surf | - | - |
| Most Powerful | 2AM (Sat 8th Aug) | 4.5ft (1.3m) 6s |
Table - best surf conditions forecast for Diamond Beach over the next 16 days.
The Lowdown
Alright crew, Rusty here. Let’s get real about Diamond Beach. It’s a tough 16-day outlook, with a massive dry spell from now all the way through to the 18th of August. Don’t bother checking the cams until then – it’s flat and choppy.
The one and only chance you’ll get is on the morning of Wednesday, 19 August. We’ll have a clean offshore breeze from the NNW at 12 mph, which is a big plus. The swell is a tiny 4 ft from the south, but it’s a short-period, wind-driven wave at just 6 seconds. The combined energy is a weak 85, so it’s going to be gutless. The notes say “surfable waves but very ordinary,” and that’s the best we’ve got. It’s small enough for beginners, but the lack of power makes it a grind.
The water is a comfortable 75°, which is about average for the season, so it’s not a total write-off.
That little pulse dies by the afternoon of the 19th as the swell drops back to 3 ft. The wind stays clean offshore, but the energy is gone.
Honestly, this is a bleak run. No standout sessions, no proper groundswell, just a whole lot of waiting for a bump that never really arrives. If you’re set on a paddle, the 19th morning is your only window, but it’s a beginner-level grovel. The stronger afternoon winds might make this spot more interesting for the kite surfers than the paddle surfers. This kind of blank run is normal for the area when the swell is this weak.
Hang in there, keep an eye on the charts, and don’t force it.
Rusty.
Short Range ForecastLight rain (total 7mm), mostly falling on Fri night. Warm (max 32°C on Sat afternoon, min 23°C on Fri night). Mainly fresh winds. | Days 5-7 Weather SummaryMostly dry. Warm (max 31°C on Tue afternoon, min 23°C on Tue morning). Wind will be generally light. | |||||||||||||||||||
Thu 6 | Friday 7 | Saturday 8 | Sunday 9 | Monday 10 | Tuesday 11 | Wednesday 12 | ||||||||||||||
PM | Night | AM | PM | Night | AM | PM | Night | AM | PM | Night | AM | PM | Night | AM | PM | Night | AM | PM | Night | |
Swell Height Map |  |  |  |  |  |  |  | |||||||||||||
Wave Height (m) Direction Period (s) | S 5 | S 5 | SSE 6 | S 4 | SSW 6 | S 6 | S 6 | S 6 | S 6 | SSE 6 | S 6 | SSE 6 | SSE 6 | S 4 | SSE 6 | SSE 6 | S 4 | SSE 6 | SSE 6 | SSE 6 |
Wave Graph  | ||||||||||||||||||||
 kJ | 46 | 55 | 26 | 27 | 113 | 25 | 26 | 52 | 21 | 13 | 16 | 12 | 11 | 7 | 10 | 12 | 12 | 10 | 12 | 6 |
Wind (km/h) | ||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | cross-on | cross | cross-off | cross-on | cross-on | cross-off | cross-off | cross | cross-off | cross | cross-off | cross-on | cross-on | cross-off | cross-off | cross-off | cross-off | cross-off | cross-off | cross-off |
High Tide | 2:45PM1.52m | 3:17AM1.22m | 3:47PM1.54m | 4:27AM1.21m | 4:56PM1.58m | 5:39AM1.25m | 6:05PM1.64m | 6:46AM1.34m | 7:08PM1.71m | 7:45AM1.44m | 8:03PM1.76m | 8:38AM1.52m | 8:53PM1.78m | |||||||
Low Tide | 9:17PM0.26m | 9:07AM0.17m | 10:29PM0.20m | 10:20AM0.15m | 11:33PM0.12m | 11:26AM0.09m | 00:31AM0.02m | 12:28PM0.03m | 1:26AM-0.07m | 1:26PM-0.03m | 2:18AM-0.14m | 2:22PM-0.08m | 3:07AM-0.18m | |||||||
 |  | | |  | | | |  | | | | |  | | | | | | | |
 | — | — | 6:05 | — | — | 6:05 | — | — | 6:05 | — | — | 6:07 | — | — | 6:07 | — | — | 6:09 | — | — |
 | 8:05 | — | — | 8:04 | — | — | 8:02 | — | — | 8:01 | — | — | 8:00 | — | — | 7:59 | — | — | 7:58 | — |
mm | — | — | — | — | 6 | — | — | 1 | — | — | — | — | — | — | — | — | — | — | — | 1 |
Temp °C | 30 | 28 | 28 | 31 | 29 | 26 | 32 | 30 | 25 | 29 | 30 | 28 | 29 | 28 | 26 | 31 | 30 | 26 | 29 | 29 |
Feels °C | 30 | 27 | 30 | 31 | 28 | 29 | 34 | 30 | 26 | 30 | 31 | 30 | 29 | 29 | 28 | 32 | 32 | 27 | 28 | 30 |
Swell 1 Height (m) Direction Period (s) | E 9 | — | SSE 6 | E 10 | S 6 | SE 8 | SE 8 | E 8 | S 6 | SSE 6 | S 6 | SSE 6 | SSE 6 | SSE 6 | SSE 6 | SSE 6 | S 4 | SSE 6 | SSE 6 | SSE 6 |
| kJ | 2 | — | 26 | 2 | 50 | 24 | 22 | 1 | 21 | 13 | 16 | 12 | 11 | 6 | 10 | 12 | 12 | 10 | 12 | 6 |
Swell 2 Height (m) Direction Period (s) | — | E 11 | E 11 | E 10 | E 9 | E 9 | E 9 | E 9 | ESE 7 | SE 7 | SE 7 | E 10 | SE 10 | SE 10 | SE 9 | SE 9 | SSE 6 | SE 8 | SE 8 | SE 8 |
| kJ | — | 2 | 2 | 2 | 2 | 2 | 1 | 2 | 5 | 2 | 2 | 2 | 4 | 4 | 3 | 3 | 3 | 3 | 3 | 3 |
Swell 3 Height (m) Direction Period (s) | — | — | — | E 10 | E 9 | E 9 | — | — | E 9 | E 9 | — | E 8 | E 8 | E 8 | E 8 | — | SE 9 | — | — | — |
| kJ | — | — | — | 2 | 2 | 1 | — | — | 2 | 2 | — | 1 | 1 | 1 | 1 | — | 3 | — | — | — |
Wind waves Height (m) Direction Period (s) | S 5 | S 5 | WSW 3 | S 4 | SSW 6 | S 6 | S 6 | S 6 | W 3 | SW 2 | — | — | — | S 4 | W 2 | — | — | W 3 | W 3 | — |
| kJ | 46 | 55 | 2 | 27 | 113 | 25 | 26 | 52 | 1 | 1 | — | — | — | 7 | 1 | — | — | 1 | 2 | — |
Nearest Offshore or Glassy | ||||||||||||||||||||
Distance (km) | 1011 | 127 | 28 | 153 | 28 | 2 | 2 | 29 | 32 | 64 | 65 | 1132 | 1009 | 597 | 323 | 28 | 64 | 289 | 1001 | 405 |
Best forecast wave conditions in New Jersey | ||||||||||||||||||||
Best forecast wave conditions in United States | ||||||||||||||||||||
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Information about the Diamond Beach Surf forecast
The above surf forecast table for Diamond Beach provides essential information for determining whether the surfing conditions will be good over the next 16 days. A general guide to surfing at Diamond Beach can be found by selecting the local surf guide option on the grey menu. Our Diamond Beach surf forecast is unique since it includes wave energy (power) that defines the real feel of the surf rather than just the height or the period. If you surf the same spot (Diamond Beach) regularly then make a mental note of the wave energy from the surf forecast table each time you go. Very soon you may start to choose your surf days based on the wave energy alone combined with our forecast of favourable offshore wind conditions. Our star ratings will help here and of course you will also find the usual wave height and period predictions on our surf forecasts as well as a full break down of the swell components under our advanced users option (to reveal that, click the little Einstein character under the tide times).
Further information to help with frequently asked questions about our surf forecast for Diamond Beach may be found under the help tab on the top menu and also by moving your mouse over the question marks on the surf forecast table itself. Please always bear in mind that the forecast is for near-shore open water and local factors at each surf break influence the actual breaking wave height, such as the beach / reef profile, water depths offshore and shelter.
Diamond Beach is 43 km (27 miles) from Ocean City. If you plan a vacation in New Jersey, look for hotels and other accommodation in Ocean City. Ocean City has rooms for a wide range of budgets as well as car hire and transport links.
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