Surf Forecasts:
Diamond Beach surf forecast from 31 Jul 2026:
- Best quality surf: Tuesday 4 Aug, 5AM (local time) - 3ft (0.9m), 7s period, SSE swell with cross-offshore winds.
- Most powerful swell: Monday 3 Aug, 5PM (local time) - 7ft (2.1m), 8s period, S swell with 501 kJ wave energy.
- Next surfable swell (1★+): Tuesday 4 Aug, 5AM (local time) - 3ft (0.9m), 7s period with SSE 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 Tuesday (Aug 04) at 5AM. The primary swell is predicted to be 0.9m and 7s period. 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 2.1m 8s and forecast to arrive on Monday (Aug 03) at 5PM. Winds are predicted to be cross-onshore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 0.3m 3s period and expected on Tuesday (Aug 04) at 2AM.
| Wave Type | Time (EDT) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | 5AM (Tue 4th Aug) | 3ft (0.9m) 7s |
| Best Surf | 5AM (Tue 4th Aug) | 3ft (0.9m) 7s |
| Most Powerful | 5PM (Mon 3rd Aug) | 7ft (2.1m) 8s |
Table - best surf conditions forecast for Diamond Beach over the next 16 days.
The Lowdown
G'day, I'm Rusty.
Look, I've got to be straight with you – the next 16 days at Diamond Beach are a tough watch. The surf is tiny, the wind is mostly messy, and there's no real quality to get excited about. We're looking at a long stretch of poor conditions, with a few moments that might just be worth a paddle if you're desperate.
The first real chance for anything barely surfable isn't until Tuesday the 4th of August, and even then it's a mixed bag. Tuesday morning, we've got a tiny 3ft SSE swell with a period of 7 seconds – that's a short, weak, windswell with combined energy of just 61 (weak). The good news? The wind goes glassy, dead calm. That's a major positive for clean conditions, but the swell is so small and weak it's barely breaking. By Tuesday afternoon, the wind picks up from the south at 15 mph, cross-onshore, and it's back to choppy rubbish. Water temp is around 74°, which is about normal for this time of year, so no drama there.
The rest of the window is a write-off. Wednesday the 5th brings a 3ft swell with a 6-second period and cross-onshore winds again, just messy. Thursday the 6th, same story – 2ft, 6 seconds, cross-shore wind. Friday the 7th, 3ft, 6 seconds, cross-shore wind, still poor. There's a brief moment of clean conditions on Sunday the 9th of August morning with a 2ft S swell and a light cross-offshore wind, but the swell is tiny and weak, with combined energy of just 37. It's barely surfable. The pattern holds through to the 15th – tiny swells, small periods, and mostly cross-onshore or cross-shore winds. The period spikes to 12 seconds on Tuesday the 11th of August morning, but that's a 1.0ft swell – a long-period groundswell with no height. It's a tease.
If you're a kiter, you might get a look in on some of the windier afternoons, but for paddle surfing, this is a grim run. There's no standout, no hidden gem. It's a full 16-day blank for any quality surf. Diamond Beach is exposed to the SE, and the swell direction rarely matches the optimum, so it's no surprise. I hate to say it, but just leave the board in the shed for a fortnight and hope the forecast changes.
Rusty.
Short Range ForecastHeavy rain (total 28mm), heaviest during Sun night. Warm (max 26°C on Sat afternoon, min 23°C on Fri night). Wind will be generally light. | Days 5-7 Weather SummaryHeavy rain (total 21mm), heaviest during Tue morning. Warm (max 27°C on Wed afternoon, min 23°C on Mon night). Winds decreasing (fresh winds from the S on Mon afternoon, calm by Tue morning). | |||||||||||||||||||
Fri 31 | Saturday 1 | Sunday 2 | Monday 3 | Tuesday 4 | Wednesday 5 | Thursday 6 | ||||||||||||||
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 9 | SSE 8 | SSE 4 | S 5 | SSE 4 | SSE 5 | SSE 6 | SSE 8 | S 8 | SSE 7 | SSE 7 | SSE 7 | S 4 | SSE 6 | S 5 | S 6 | SSE 6 | S 5 | S 6 |
Wave Graph  | ||||||||||||||||||||
 kJ | 16 | 20 | 13 | 13 | 42 | 25 | 28 | 194 | 232 | 501 | 121 | 61 | 79 | 38 | 53 | 70 | 80 | 39 | 57 | 59 |
Wind (km/h) | ||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | cross-on | cross | cross-on | cross-on | cross-on | on | on | cross | cross-on | cross-on | cross-off | glassy | cross-on | cross-on | cross-on | cross-on | cross | cross | cross-on | cross |
High Tide | 10:22PM1.54m | 10:52AM1.37m | 10:58PM1.49m | 11:30AM1.40m | 11:39PM1.44m | 12:12PM1.43m | 00:25AM1.38m | 12:58PM1.47m | 1:17AM1.31m | 1:49PM1.50m | 2:14AM1.26m | 2:45PM1.52m | 3:17AM1.22m | |||||||
Low Tide | 4:03PM0.14m | 4:33AM-0.01m | 4:42PM0.15m | 5:05AM-0.00m | 5:20PM0.17m | 5:38AM0.02m | 6:03PM0.20m | 6:13AM0.05m | 6:53PM0.23m | 6:57AM0.10m | 8:00PM0.27m | 7:54AM0.14m | 9:17PM0.26m | |||||||
 |  | |  |  | | |  |  | | |  |  |  | | | | | | | |
 | — | — | 5:58 | — | — | 6:00 | — | — | 6:01 | — | — | 6:01 | — | — | 6:03 | — | — | 6:03 | — | — |
 | 8:12 | — | — | 8:10 | — | — | 8:09 | — | — | 8:08 | — | — | 8:07 | — | — | 8:06 | — | — | 8:05 | — |
mm | — | — | — | — | — | — | — | 22 | 6 | 2 | 6 | 6 | 5 | 2 | — | — | — | — | — | — |
Temp °C | 25 | 25 | 25 | 26 | 25 | 25 | 25 | 26 | 26 | 26 | 24 | 23 | 25 | 25 | 25 | 27 | 25 | 26 | 29 | 28 |
Feels °C | 26 | 25 | 26 | 25 | 24 | 25 | 25 | 27 | 26 | 24 | 23 | 26 | 25 | 25 | 26 | 26 | 26 | 28 | 29 | 28 |
Swell 1 Height (m) Direction Period (s) | SE 8 | SE 9 | SSE 8 | E 6 | SE 8 | E 6 | SE 8 | SSE 6 | — | SSE 8 | SSE 7 | SSE 7 | E 8 | — | E 8 | — | — | E 9 | E 9 | E 9 |
| kJ | 16 | 20 | 13 | 1 | 3 | 1 | 9 | 73 | — | 218 | 121 | 61 | 1 | — | 1 | — | — | 2 | 2 | 2 |
Swell 2 Height (m) Direction Period (s) | ENE 6 | E 6 | SE 9 | NE 6 | E 6 | — | E 5 | E 5 | — | — | — | — | — | — | — | E 12 | — | — | — | — |
| kJ | 3 | 3 | 3 | 1 | 1 | — | 1 | 1 | — | — | — | — | — | — | — | 3 | — | — | — | — |
Swell 3 Height (m) Direction Period (s) | SE 9 | ESE 10 | E 6 | — | — | — | — | — | — | — | — | — | — | E 8 | — | — | — | — | — | — |
| kJ | 3 | 9 | 1 | — | — | — | — | — | — | — | — | — | — | 1 | — | — | — | — | — | — |
Wind waves Height (m) Direction Period (s) | — | SSW 3 | S 3 | SSE 4 | S 5 | SSE 4 | SSE 5 | SSE 6 | SSE 8 | S 8 | WSW 3 | — | SSE 7 | S 4 | SSE 6 | S 5 | S 6 | SSE 6 | S 5 | S 6 |
| kJ | — | 2 | 1 | 13 | 42 | 25 | 28 | 194 | 232 | 501 | 2 | — | 79 | 38 | 53 | 70 | 80 | 39 | 57 | 59 |
Nearest Offshore or Glassy | ||||||||||||||||||||
Distance (km) | 346 | 91 | 346 | 1037 | 597 | 1135 | 1183 | 7 | 337 | 372 | 10 | 0 | 131 | 257 | 142 | 257 | 182 | 7 | 372 | 23 |
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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