Surf Forecasts:
Diamond Beach surf forecast from 29 Aug 2026:
- Most powerful swell: Wednesday 2 Sep, 11PM (local time) - 2.5ft (0.8m), 10s period, ESE swell with 109 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 0.8m 10s and forecast to arrive on Wednesday (Sep 02) at 11PM. Winds are predicted to be 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 Thursday (Sep 03) at 11PM.
| Wave Type | Time (EDT) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | - | - |
| Best Surf | - | - |
| Most Powerful | 11PM (Wed 2nd Sep) | 2.5ft (0.8m) 10s |
Table - best surf conditions forecast for Diamond Beach over the next 16 days.
The Lowdown
G’day, Rusty here. Let’s be straight with you – this stretch isn’t looking like a classic run. A quick glance at the 16 days ahead and it’s mostly flat or junky, but there are a couple of flickers of life if you’re keen to get wet.
Diamond Beach is the only break doing anything, but it’s inconsistent and a beginner-friendly spot by nature. The water is sitting at 76° – a touch warmer than normal for this time of year, so you won’t need a thick suit. The first week is pretty much a write-off, with tiny 1ft to 2ft swells and onshore or cross winds keeping things choppy and poor. There’s a gap from now all the way to about the 8th of September where nothing’s worth a paddle.
Wednesday 9th September – A little spike arrives. The morning sees a clean-ish 3ft swell from the SSE at 12 seconds, with light cross-shore winds and moderate energy (330). It’s still a marginal call and the surf is ordinary, but that’s the best looking window in the first half of the month. The afternoon turns onshore and choppy again though.
Saturday 12th September – This morning is the standout of the entire outlook. Glassy conditions – total calm – with a 3ft ENE swell. The period is short at 5 seconds, so it’ll be a bit weak and bouncy (combined energy of 66), but for this stretch, it’s the cleanest you’ll see. The 3ft size is just right for beginners, but don’t expect much power. The afternoon turns to crud with stronger onshore winds.
After that, it’s back to tiny, clean but weak surf through to the 13th, with 1ft to 2ft ESE and E swells, offshore or cross-off winds, but barely enough to ride. Nothing else in the 16 days comes close to a proper session.
Bottom line: if you’re desperate, the 12th morning at Diamond Beach is your best shot – glassy, small, and clean. The rest is mostly a waiting game.
Rusty.
Short Range ForecastLight rain (total 4mm), mostly falling on Sun night. Warm (max 26°C on Sun afternoon, min 23°C on Sat afternoon). Wind will be generally light. | Days 5-7 Weather SummaryHeavy rain (total 40mm), heaviest during Thu night. Warm (max 32°C on Tue afternoon, min 22°C on Wed morning). Wind will be generally light. | |||||||||||||||||||
Sat 29 | Sunday 30 | Monday 31 | Tuesday 1 | Wednesday 2 | Thursday 3 | Friday 4 | ||||||||||||||
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 8 | SE 8 | SE 8 | S 3 | S 4 | SE 8 | SE 8 | SE 7 | SE 7 | SE 7 | SSE 12 | SE 11 | SE 10 | SE 10 | SE 9 | SE 9 | SE 8 | ESE 8 | SSE 6 | SE 8 |
Wave Graph  | ||||||||||||||||||||
 kJ | 16 | 17 | 18 | 8 | 19 | 10 | 9 | 8 | 8 | 7 | 98 | 75 | 49 | 32 | 29 | 38 | 11 | 23 | 8 | 10 |
Wind (km/h) | ||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | cross-on | cross-on | cross-on | cross-on | cross-on | cross-off | cross | cross-on | cross-on | cross-off | cross-off | cross | cross-on | cross | cross-on | cross-on | cross | cross-off | cross-on | cross |
High Tide | 9:56PM1.56m | 10:18AM1.53m | 10:34PM1.51m | 10:57AM1.56m | 11:17PM1.44m | 11:40AM1.57m | 00:06AM1.37m | 12:30PM1.56m | 1:03AM1.30m | 1:27PM1.54m | 2:05AM1.24m | 2:29PM1.52m | 3:11AM1.21m | |||||||
Low Tide | 3:42PM0.06m | 4:00AM-0.04m | 4:22PM0.06m | 4:34AM-0.03m | 5:04PM0.08m | 5:09AM0.01m | 5:48PM0.12m | 5:48AM0.06m | 6:40PM0.18m | 6:35AM0.13m | 7:46PM0.24m | 7:37AM0.20m | 9:04PM0.25m | |||||||
 |  | | |  |  |  |  | | | |  | | | | |  | | | | |
 | — | — | 6:26 | — | — | 6:26 | — | — | 6:26 | — | — | 6:28 | — | — | 6:28 | — | — | 6:30 | — | — |
 | 7:35 | — | — | 7:32 | — | — | 7:31 | — | — | 7:30 | — | — | 7:28 | — | — | 7:27 | — | — | 7:24 | — |
mm | — | — | — | — | 3 | 1 | — | — | — | — | — | 1 | — | 9 | — | 1 | 29 | — | — | — |
Temp °C | 23 | 23 | 24 | 26 | 25 | 24 | 25 | 25 | 26 | 32 | 32 | 22 | 23 | 22 | 24 | 26 | 26 | 24 | 26 | 24 |
Feels °C | 24 | 23 | 24 | 25 | 24 | 26 | 28 | 27 | 29 | 33 | 32 | 22 | 25 | 22 | 28 | 31 | 26 | 25 | 29 | 26 |
Swell 1 Height (m) Direction Period (s) | ENE 4 | SE 8 | SE 8 | ESE 8 | S 4 | SSE 4 | SE 8 | SE 7 | SE 7 | SE 7 | SSE 12 | SE 11 | SE 10 | E 6 | E 6 | SE 9 | SSE 4 | ESE 8 | SSE 6 | SE 8 |
| kJ | 4 | 17 | 18 | 7 | 19 | 7 | 9 | 8 | 7 | 7 | 98 | 75 | 49 | 19 | 12 | 38 | 7 | 23 | 8 | 10 |
Swell 2 Height (m) Direction Period (s) | SE 8 | ENE 5 | ENE 5 | E 6 | ESE 8 | SE 8 | SSE 4 | — | — | SE 8 | S 4 | S 5 | ENE 4 | SE 10 | SE 9 | E 6 | E 7 | SSE 6 | E 6 | E 6 |
| kJ | 16 | 4 | 2 | 1 | 7 | 10 | 4 | — | — | 3 | 6 | 4 | 3 | 32 | 29 | 13 | 8 | 7 | 3 | 3 |
Swell 3 Height (m) Direction Period (s) | S 5 | S 5 | S 5 | E 6 | E 5 | — | — | — | SE 15 | SE 14 | — | — | S 5 | S 5 | S 3 | — | SE 8 | — | ESE 8 | S 6 |
| kJ | 2 | 1 | 2 | 1 | 1 | — | — | — | 8 | 7 | — | — | 5 | 4 | 1 | — | 11 | — | 6 | 2 |
Wind waves Height (m) Direction Period (s) | — | — | — | S 3 | — | — | — | S 4 | SSW 3 | S 4 | — | ENE 4 | — | — | S 5 | SSW 2 | WNW 3 | NW 3 | WNW 3 | — |
| kJ | — | — | — | 8 | — | — | — | 1 | 3 | 4 | — | 5 | — | — | 4 | 1 | 3 | 1 | 1 | — |
Nearest Offshore or Glassy | ||||||||||||||||||||
Distance (km) | 348 | 323 | 325 | 158 | 227 | 376 | 1001 | 597 | 413 | 85 | 10 | 247 | 299 | 5 | 30 | 151 | 95 | 376 | 169 | 289 |
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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