Surf Forecasts:
Diamond Beach surf forecast from 26 Aug 2026:
- Best quality surf: Friday 28 Aug, 2AM (local time) - 2.5ft (0.8m), 6s period, SE swell with cross-offshore winds.
- Most powerful swell: Wednesday 2 Sep, 2AM (local time) - 2ft (0.6m), 12s period, ESE swell with 117 kJ wave energy.
- Next surfable swell (1★+): Friday 28 Aug, 2AM (local time) - 2.5ft (0.8m), 6s period with SE swell.
Best Forecast Surf Conditions for Diamond Beach this week:
The surf forecast for Diamond Beach over the next 16 days: The first swell (rated 1 star or higher) is forecast to arrive on Friday (Aug 28) at 2AM. The primary swell is predicted to be 0.8m and 6s period with a secondary swell of 0.6m and 5s. The wind is predicted to be cross-offshore as the swell arrives.
The most powerful waves expected at Diamond Beach in the next 16 days are 0.6m 12s and forecast to arrive on Wednesday (Sep 02) at 2AM. Winds are predicted to be cross-offshore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 0.4m 3s period and expected on Tuesday (Sep 01) at 11AM.
| Wave Type | Time (EDT) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | 2AM (Fri 28th Aug) | 2.5ft (0.8m) 6s |
| Best Surf | 2AM (Fri 28th Aug) | 2.5ft (0.8m) 6s |
| Most Powerful | 2AM (Wed 2nd Sep) | 2ft (0.6m) 12s |
Table - best surf conditions forecast for Diamond Beach over the next 16 days.
The Lowdown
Alright folks, Rusty here with a look at what's coming up for Diamond Beach.
Let's be straight with you – this stretch of the next sixteen days is looking pretty grim. We’ve got a long, flat spell right from the get-go. From Wednesday the 26th of August, right through until late in the first week of September, the surf is basically non-existent. You’re looking at tiny dribbles, nothing over 3ft, and the wind is all over the shop – mostly onshore or choppy. That combined wave energy is just pathetic, often sitting between 18 and 57 (weak) most of that time. It’s a real desert out there.
Now, we do finally see a shift around Sunday the 6th of September. The energy starts to tick up a notch, getting into that moderate range (123) by Sunday afternoon, but it's still messy with a fresh cross-shore breeze and short-period junk. Not worth paddling out for.
The one true standout – and I mean the *only* one that’s worth getting slightly excited about – is the morning of Monday the 7th of September. The wind swings around to a light cross-offshore breeze from the northeast, cleaning things up nicely. We’ll see some 2ft swell from the east, but the real story is the energy is building again (94) and it’ll be clean. It’s not big, but after so many days of rubbish, a clean 2ft wave that’s surfable is a serious blessing. It’s a beginner-friendly size for sure, and with winds like that, it’ll be a fun little board session.
The following morning, Tuesday the 8th, also shows some promise with a 4ft swell from the SSE and clean offshore winds from the WNW (104 energy). It’s a bit more size, still very manageable, but that swell direction from the SSE is not ideal for Diamond Beach. It might offer up a few more powerful lines but it could be a bit closed out. Keep your expectations in check.
Remember, Diamond Beach is an exposed SE-facing spot, and this pickup is short-lived. Beyond that Tuesday morning, the wind goes bad again and the surf drops back off.
Stay patient, crew. It’s a slow period.
Rusty.
Short Range ForecastModerate rain (total 10mm), heaviest on Wed night. Warm (max 27°C on Fri afternoon, min 22°C on Wed morning). Winds increasing (calm on Wed morning, fresh winds from the SSE by Thu afternoon). | Days 4-6 Weather SummaryMostly dry. Warm (max 25°C on Sun afternoon, min 22°C on Sat morning). Wind will be generally light. | ||||||||||||||||||||
Wednesday 26 | Thursday 27 | Friday 28 | Saturday 29 | Sunday 30 | Monday 31 | Tuesday 1 | |||||||||||||||
AM | 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) | SE 9 | SE 9 | ESE 9 | S 4 | ESE 9 | SE 6 | SSE 6 | SE 8 | SE 8 | SE 8 | SE 8 | SE 8 | SE 8 | SE 8 | SE 8 | SE 8 | SE 7 | SE 7 | SE 7 | SE 7 | ESE 12 |
Wave Graph  | |||||||||||||||||||||
 kJ | 14 | 19 | 31 | 31 | 71 | 49 | 34 | 34 | 33 | 17 | 13 | 11 | 11 | 18 | 10 | 9 | 8 | 7 | 7 | 7 | 117 |
Wind (km/h) | |||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | glassy | cross-on | cross-on | cross-on | cross-on | cross-off | cross-off | cross | off | cross-off | cross-on | on | cross-on | cross-on | cross | off | cross-on | cross-on | cross | cross | cross-off |
High Tide | 8:07PM1.56m | 8:32AM1.37m | 8:44PM1.59m | 9:08AM1.44m | 9:20PM1.58m | 9:43AM1.49m | 9:56PM1.56m | 10:18AM1.53m | 10:34PM1.51m | 10:57AM1.56m | 11:17PM1.44m | 11:40AM1.57m | 00:06AM1.37m | ||||||||
Low Tide | 1:33PM0.16m | 2:09AM0.04m | 2:17PM0.12m | 2:48AM-0.01m | 3:00PM0.08m | 3:25AM-0.03m | 3:42PM0.06m | 4:00AM-0.04m | 4:22PM0.06m | 4:34AM-0.03m | 5:04PM0.08m | 5:09AM0.01m | 5:48PM0.12m | ||||||||
 | |  |  |  |  | |  |  |  | |  | | |  | | | | | | | |
 | 6:22 | — | — | 6:22 | — | — | 6:24 | — | — | 6:24 | — | — | 6:26 | — | — | 6:26 | — | — | 6:26 | — | — |
 | — | 7:38 | — | — | 7:37 | — | — | 7:36 | — | — | 7:35 | — | — | 7:32 | — | — | 7:31 | — | — | 7:30 | — |
mm | — | — | 2 | 2 | — | 5 | — | 1 | — | — | — | — | — | — | — | — | — | — | — | — | — |
Temp °C | 23 | 24 | 25 | 26 | 25 | 25 | 24 | 27 | 26 | 23 | 23 | 24 | 24 | 25 | 25 | 25 | 25 | 24 | 27 | 33 | 33 |
Feels °C | 24 | 23 | 23 | 25 | 22 | 25 | 25 | 29 | 28 | 22 | 23 | 26 | 26 | 25 | 24 | 28 | 24 | 26 | 28 | 33 | 33 |
Swell 1 Height (m) Direction Period (s) | SE 9 | SE 9 | ESE 9 | ESE 8 | ESE 9 | SE 6 | SSE 6 | SE 8 | S 7 | SSE 6 | SE 8 | ENE 4 | SE 8 | SE 8 | SE 8 | S 4 | SE 7 | S 4 | SE 7 | S 5 | S 5 |
| kJ | 14 | 19 | 31 | 28 | 71 | 49 | 33 | 34 | 27 | 6 | 10 | 4 | 11 | 18 | 10 | 5 | 8 | 5 | 7 | 4 | 2 |
Swell 2 Height (m) Direction Period (s) | SSE 6 | E 5 | E 13 | E 12 | E 12 | S 5 | SE 8 | SSE 6 | SE 8 | SE 8 | SSE 5 | SE 8 | ENE 5 | ENE 5 | — | SE 8 | — | SE 7 | S 4 | SE 7 | S 5 |
| kJ | 3 | 1 | 4 | 3 | 3 | 21 | 34 | 12 | 33 | 17 | 6 | 11 | 2 | 2 | — | 9 | — | 7 | 4 | 7 | 4 |
Swell 3 Height (m) Direction Period (s) | E 6 | E 14 | E 6 | — | — | E 11 | E 11 | E 10 | E 10 | E 10 | E 9 | SSE 5 | SSE 5 | E 9 | E 9 | E 8 | — | — | — | SE 8 | ESE 9 |
| kJ | 1 | 4 | 1 | — | — | 2 | 2 | 2 | 2 | 2 | 2 | 2 | 3 | 2 | 2 | 1 | — | — | — | 3 | 8 |
Wind waves Height (m) Direction Period (s) | — | S 6 | S 4 | S 4 | SSE 5 | — | — | — | — | ENE 4 | ENE 4 | — | — | SSE 5 | S 4 | W 3 | S 4 | — | WNW 3 | W 3 | ESE 12 |
| kJ | — | 6 | 20 | 31 | 52 | — | — | — | — | 15 | 13 | — | — | 5 | 9 | 1 | 3 | — | 3 | 1 | 117 |
Nearest Offshore or Glassy | |||||||||||||||||||||
Distance (km) | 289 | 1453 | 163 | 252 | 1166 | 0 | 0 | 7 | 0 | 199 | 260 | 158 | 422 | 376 | 376 | 289 | 471 | 1172 | 1172 | 1174 | 10 |
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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