Surf Forecasts:
Diamond Beach surf forecast from 21 Aug 2026:
- Best quality surf: Friday 28 Aug, 5AM (local time) - 2.5ft (0.7m), 6s period, S swell with cross-offshore winds.
- Most powerful swell: Friday 28 Aug, 2AM (local time) - 2.5ft (0.8m), 6s period, S swell with 51 kJ wave energy.
- Next surfable swell (1★+): Friday 28 Aug, 5AM (local time) - 2.5ft (0.7m), 6s period with S 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 5AM. The primary swell is predicted to be 0.7m and 6s period with a secondary swell of 0.4m and 9s. 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 0.8m 6s and forecast to arrive on Friday (Aug 28) at 2AM. Winds are predicted to be cross-shore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 0.5m 3s period and expected on Friday (Aug 21) at 8AM.
| Wave Type | Time (EDT) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | 5AM (Fri 28th Aug) | 2.5ft (0.7m) 6s |
| Best Surf | 5AM (Fri 28th Aug) | 2.5ft (0.7m) 6s |
| Most Powerful | 2AM (Fri 28th Aug) | 2.5ft (0.8m) 6s |
Table - best surf conditions forecast for Diamond Beach over the next 16 days.
The Lowdown
Alright, this is Rusty. Let’s get straight into it. Honestly, looking at the next 16 days, I’m not gonna sugarcoat it – there’s basically nothing worth paddling out for at Diamond Beach. The whole run is a flat spell with a few tiny, weak pulses, but nothing that’s going to get your heart rate up. The only break with any kind of recommendation is Diamond Beach, but the data is consistently grim.
The first real chance to even think about a surf comes on the morning of Friday, August 21st. We’re looking at a tiny 0.7 ft swell out of the ESE, with a period of 8 seconds. The combined energy of all swells is a measly 15 – that’s weak, no two ways about it. The wind is a light NNE cross-off, so it’s clean, but there’s just no power. The water is 77°, which is a touch warmer than normal for this time of year, but that’s the only interesting thing here.
Saturday the 22nd through Tuesday the 27th, the swell stays below 2 ft, with periods mostly under 8 seconds. The energy values are all in the double digits, under 100. Mostly onshore or cross-onshore winds, too. It’s a write-off. You’ll see a bit of a spike on Tuesday morning, September 1st, when the swell hits 3 ft from the south, but the period is a terrible 4 seconds, which is just wind chop. Combined energy is still only 46. The wind is clean and light, but the wave quality is rated as poor. That’s not surf, that’s a bumpy lake.
The last few days into September 5th are more of the same: tiny, short-period slop with onshore winds. The biggest reading is 4 ft on Saturday afternoon, September 5th, from the south, but again with a 4-second period and 62 combined energy. The wind is cross-on, making it choppy.
So, the bottom line: there are zero standouts. The entire 16-day window is a gap. If you’re desperate for a paddle on a longboard on a glassy morning, you might get a few ankle-biters, but for any real surf, this is a dead period. The break is inconsistent, and the forecasts can change, but right now, it’s a blank run. I’d honestly say the setup out there looks more interesting for kite surfing than paddle surfing, given the lack of wave quality and the persistent wind, but that’s not my call to make.
Stay patient, mate.
Rusty.
Short Range ForecastHeavy rain (total 26mm), heaviest during Sat morning. Warm (max 28°C on Sun afternoon, min 19°C on Fri morning). Wind will be generally light. | Days 4-6 Weather SummaryLight rain (total 2mm), mostly falling on Wed night. Warm (max 26°C on Mon afternoon, min 21°C on Mon morning). Wind will be generally light. | ||||||||||||||||||||
Friday 21 | Saturday 22 | Sunday 23 | Monday 24 | Tuesday 25 | Wednesday 26 | Thursday 27 | |||||||||||||||
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) | ESE 8 | ENE 6 | ENE 6 | E 8 | ENE 6 | SE 4 | SSE 5 | SSE 5 | SSE 6 | ESE 12 | ESE 12 | SE 11 | SE 11 | SE 11 | SE 11 | SE 11 | SE 10 | SSE 4 | SSE 5 | SSE 5 | S 6 |
Wave Graph  | |||||||||||||||||||||
 kJ | 7 | 13 | 13 | 48 | 25 | 10 | 8 | 11 | 14 | 14 | 13 | 19 | 18 | 18 | 18 | 18 | 14 | 25 | 19 | 18 | 51 |
Wind (km/h) | |||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | cross-off | on | on | cross-on | on | cross-on | cross-off | cross-off | off | off | cross-off | off | cross-off | cross-on | on | on | on | cross-on | cross-on | cross-on | cross |
High Tide | 3:56PM1.35m | 4:23AM1.07m | 4:53PM1.35m | 5:24AM1.09m | 5:49PM1.39m | 6:21AM1.14m | 6:42PM1.45m | 7:11AM1.22m | 7:27PM1.51m | 7:54AM1.30m | 8:07PM1.56m | 8:32AM1.37m | 8:44PM1.59m | ||||||||
Low Tide | 9:14AM0.37m | 10:19PM0.35m | 10:15AM0.37m | 11:13PM0.31m | 11:10AM0.33m | 00:01AM0.25m | 12:00PM0.28m | 00:46AM0.18m | 12:47PM0.22m | 1:29AM0.11m | 1:33PM0.16m | 2:09AM0.04m | 2:17PM0.12m | 2:48AM-0.01m | |||||||
 | |  |  |  |  |  |  |  | | | | | | | | | | | | | |
 | 6:16 | — | — | 6:18 | — | — | 6:18 | — | — | 6:20 | — | — | 6:20 | — | — | 6:22 | — | — | 6:22 | — | — |
 | — | 7:45 | — | — | 7:45 | — | — | 7:43 | — | — | 7:42 | — | — | 7:39 | — | — | 7:38 | — | — | 7:37 | — |
mm | — | — | — | 13 | 7 | 5 | — | 1 | — | — | — | — | — | — | — | — | — | 2 | 5 | 5 | 10 |
Temp °C | 21 | 23 | 23 | 21 | 22 | 24 | 24 | 28 | 27 | 22 | 26 | 26 | 22 | 24 | 25 | 25 | 26 | 26 | 25 | 27 | 24 |
Feels °C | 21 | 25 | 25 | 21 | 22 | 25 | 26 | 27 | 27 | 19 | 24 | 24 | 20 | 24 | 25 | 26 | 26 | 26 | 25 | 27 | 25 |
Swell 1 Height (m) Direction Period (s) | SSE 5 | ENE 6 | ENE 6 | SE 8 | ENE 6 | SE 4 | SSE 5 | SSE 5 | SSE 6 | SSE 6 | SSE 6 | SE 11 | SE 11 | S 4 | SE 11 | SE 11 | SE 10 | SE 8 | ESE 7 | SSE 5 | S 6 |
| kJ | 4 | 13 | 13 | 18 | 25 | 10 | 8 | 11 | 12 | 6 | 7 | 19 | 18 | 4 | 18 | 18 | 14 | 11 | 5 | 18 | 51 |
Swell 2 Height (m) Direction Period (s) | ESE 8 | ESE 9 | ESE 9 | SE 13 | ESE 13 | ESE 8 | E 8 | SE 12 | ESE 7 | ESE 12 | ESE 12 | SSE 6 | SSE 5 | SE 11 | SSE 4 | E 6 | E 6 | E 13 | ESE 10 | ESE 7 | SE 9 |
| kJ | 7 | 8 | 8 | 7 | 17 | 6 | 4 | 6 | 5 | 14 | 13 | 3 | 2 | 18 | 2 | 1 | 1 | 3 | 9 | 5 | 23 |
Swell 3 Height (m) Direction Period (s) | E 15 | SSE 5 | SSE 4 | ESE 13 | SE 9 | ENE 5 | SE 12 | E 7 | ESE 12 | E 7 | — | E 7 | E 6 | E 6 | E 6 | E 15 | E 15 | E 6 | E 13 | ESE 10 | E 11 |
| kJ | 4 | 2 | 2 | 18 | 3 | 3 | 6 | 4 | 14 | 4 | — | 1 | 1 | 1 | 1 | 5 | 4 | 1 | 3 | 9 | 2 |
Wind waves Height (m) Direction Period (s) | NNE 5 | — | — | E 8 | ESE 4 | — | — | W 2 | WNW 2 | WNW 3 | — | WSW 2 | — | — | — | SSE 5 | S 3 | SSE 4 | SSE 5 | — | WSW 3 |
| kJ | 9 | — | — | 48 | 14 | — | — | 1 | 1 | 3 | — | 1 | — | — | — | 2 | 5 | 25 | 19 | — | 3 |
Nearest Offshore or Glassy | |||||||||||||||||||||
Distance (km) | 1001 | 1434 | 206 | 313 | 50 | 64 | 91 | 59 | 32 | 65 | 85 | 98 | 98 | 163 | 325 | 323 | 1166 | 546 | 346 | 147 | 23 |
Best forecast wave conditions in New Jersey | |||||||||||||||||||||
Best forecast wave conditions in United States | |||||||||||||||||||||
Header Global | |||||||||||||||||||||
- Map Icons:
Break
Live Wave Height (m)
Live Wind Speed (km/h)
Surf Rating (10 Max)
Ocean Swells (m)- Wind Speed (km/h)
FREE! Surf-Forecast.com widget for your website
The surf report / weather widget below is available to embed on third party websites free of charge and provides a summary of our Diamond Beach surf forecast. Simply grab the html code snippet that we provide and paste it into your own site. You can choose your preferred language and metric/imperial units for the surf forecast feed to suit users of your site. Click here to get the code.
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.
Nearest