Surf Forecasts:
Diamond Beach surf forecast from 22 Aug 2026:
- Best quality surf: Friday 28 Aug, 5PM (local time) - 2ft (0.6m), 7s period, SSE swell with cross-offshore winds.
- Most powerful swell: Saturday 22 Aug, 5PM (local time) - 2ft (0.6m), 13s period, ESE swell with 116 kJ wave energy.
- Next surfable swell (1★+): Friday 28 Aug, 5PM (local time) - 2ft (0.6m), 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 Friday (Aug 28) at 5PM. The primary swell is predicted to be 0.6m and 7s period with a secondary swell of 0.5m and 8s. 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 13s and forecast to arrive on Saturday (Aug 22) at 5PM. Winds are predicted to be onshore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 0.4m 3s period and expected on Sunday (Aug 23) at 5PM.
| Wave Type | Time (EDT) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | 5PM (Fri 28th Aug) | 2ft (0.6m) 7s |
| Best Surf | 5PM (Fri 28th Aug) | 2ft (0.6m) 7s |
| Most Powerful | 5PM (Sat 22nd Aug) | 2ft (0.6m) 13s |
Table - best surf conditions forecast for Diamond Beach over the next 16 days.
The Lowdown
Alright, Rusty here. Let's be straight with you. The outlook for Diamond Beach is a tough one. We're looking at a solid 16-day window, but the honest truth is there's no real standout surf to get excited about. The whole period is a long stretch of poor surf conditions, with just a couple of moments that are "surfable" but nothing to write home about.
The water temp is sitting at a touch warmer than normal for this time of year, about 77°, so that's a nice little bonus if you're getting wet, but the waves just aren't backing it up.
We start on Saturday, the 22nd of August, with tiny waves around 2 ft from the east, but the wind is a cross-on from the ESE at 9 mph, making it choppy and uninviting. The combined energy is weak at 47. Not a good start.
Sunday the 23rd is clean, with a nice cross-off wind from the WSW, but the swell is tiny, just 1-2 ft from the south, with very short periods. It's clean but there's nothing to ride.
Monday the 24th through to Thursday the 27th is more of the same – clean mornings but waves barely breaking 1.0 ft. The energy is pitiful, in the low 20s. There's a brief moment on Wednesday the 26th morning where the wind goes glassy, but with 1.0 ft of swell, it's a flat calm.
The first hint of something surfable doesn't arrive until Friday the 28th of August. The afternoon swell pushes to 2 ft from the SSE, with a period of 7 seconds, and the wind is light and cross-off from the west at 6 mph, making it clean. The energy jumps to 73. It's surfable, but very ordinary. If you're desperate, that's your window.
After that, it's back to tiny, weak, and choppy conditions right through the end of August and into September. The 31st of August sees a 4 ft swell from the east, but it's onshore, choppy, and the energy is still only 87. It's a messy, blown-out mess.
The most interesting pulse comes in the first week of September. On Tuesday the 1st of September, we see a 3 ft swell from the ESE with a very long period of 14 seconds. The combined energy is a strong 483. However, the wind is a fresh cross-on from the south at 19 mph, creating lumpy, poor conditions. This is a lot of energy, but the wind is ruining it. This setup, with that much wind and that kind of swell, is honestly more interesting for kite surfing than for a paddle surfer.
The rest of the week sees a few more pulses of moderate energy, like the 159 on Thursday the 3rd, but the wind is always cross or cross-on, making it choppy.
The final weekend, the 6th of September, sees a 2 ft swell from the SSE with an 11-second period and energy of 125, but again, a fresh cross-on from the ENE at 19 mph destroys any chance of quality.
The honest truth is, there's no standout day here. The conditions are just too small, choppy, or blown-out to recommend a session. It's a long stretch of disappointing surf. The best you can hope for is a quiet, clean morning on the smallest of days, or a very ordinary session on the 28th of August. Forecasts can change, but as it stands, this is a blank run for Diamond Beach.
Rusty.
Short Range ForecastModerate rain (total 16mm), heaviest on Sat night. Warm (max 27°C on Sun afternoon, min 21°C on Sat morning). Wind will be generally light. | Days 4-6 Weather SummaryLight rain (total 7mm), mostly falling on Thu night. Warm (max 27°C on Thu afternoon, min 21°C on Tue morning). Wind will be generally light. | ||||||||||||||||||||
Saturday 22 | Sunday 23 | Monday 24 | Tuesday 25 | Wednesday 26 | Thursday 27 | Friday 28 | |||||||||||||||
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) | E 8 | ESE 13 | SSE 4 | S 5 | SSE 5 | SSE 6 | ESE 12 | SE 12 | SE 11 | SE 11 | SE 11 | SE 11 | SE 10 | SE 9 | SE 8 | ESE 10 | SE 4 | SE 9 | SE 9 | SSE 7 | S 7 |
Wave Graph | |||||||||||||||||||||
33 | 116 | 24 | 11 | 7 | 14 | 14 | 21 | 19 | 18 | 18 | 18 | 15 | 20 | 17 | 9 | 14 | 20 | 20 | 37 | 23 | |
Wind (km/h) | |||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | cross-on | on | cross | cross-off | cross-off | off | cross-off | cross-off | cross-off | cross-off | cross | cross | glassy | on | cross-on | cross-on | cross-on | cross | cross-off | cross-off | cross-off |
High Tide | 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 | 9:08AM1.44m | 9:20PM1.58m | ||||||||
Low Tide | 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 | 3:00PM0.08m | 3:25AM-0.03m | |||||||
6:18 | — | — | 6:18 | — | — | 6:20 | — | — | 6:20 | — | — | 6:22 | — | — | 6:22 | — | — | 6:24 | — | — | |
— | 7:45 | — | — | 7:43 | — | — | 7:42 | — | — | 7:39 | — | — | 7:38 | — | — | 7:37 | — | — | 7:36 | — | |
mm | 6 | 2 | 7 | 1 | — | — | — | — | — | — | — | — | — | — | — | — | — | 7 | — | — | — |
Temp °C | 21 | 23 | 24 | 24 | 27 | 26 | 23 | 25 | 25 | 23 | 26 | 25 | 24 | 26 | 26 | 26 | 27 | 26 | 24 | 28 | 26 |
Feels °C | 21 | 23 | 24 | 24 | 25 | 24 | 19 | 22 | 23 | 20 | 23 | 22 | 26 | 26 | 26 | 27 | 26 | 27 | 25 | 28 | 25 |
Swell 1 Height (m) Direction Period (s) | SE 14 | ENE 6 | ENE 5 | S 5 | SSE 5 | SSE 6 | SSE 6 | SE 12 | SSE 5 | SE 11 | SE 11 | SE 11 | SE 10 | SE 9 | SE 8 | ESE 7 | E 12 | SE 4 | SSE 5 | SSE 7 | S 7 |
7 | 3 | 3 | 11 | 7 | 12 | 8 | 21 | 6 | 18 | 18 | 18 | 15 | 20 | 17 | 5 | 3 | 12 | 12 | 37 | 23 | |
Swell 2 Height (m) Direction Period (s) | — | ESE 8 | ESE 8 | E 4 | SE 12 | ESE 12 | ESE 12 | E 7 | SE 11 | SSE 5 | E 6 | S 6 | SSE 6 | E 14 | E 13 | ESE 10 | E 12 | SE 9 | SE 9 | SE 8 | SE 8 |
— | 13 | 6 | 1 | 6 | 14 | 14 | 4 | 19 | 3 | 3 | 2 | 8 | 4 | 3 | 9 | 3 | 20 | 20 | 34 | 18 | |
Swell 3 Height (m) Direction Period (s) | SE 13 | ESE 13 | SE 13 | E 8 | E 7 | E 7 | E 7 | — | E 6 | E 6 | E 7 | E 6 | E 6 | E 14 | ESE 10 | E 12 | E 8 | E 11 | E 10 | E 11 | E 10 |
7 | 17 | 7 | 4 | 4 | 4 | 1 | — | 1 | 1 | 1 | 1 | 1 | 4 | 9 | 3 | 1 | 2 | 2 | 2 | 2 | |
Wind waves Height (m) Direction Period (s) | E 8 | ESE 13 | SSE 4 | WSW 3 | WSW 3 | WNW 3 | W 2 | S 3 | — | — | S 6 | SSW 3 | — | S 6 | S 3 | SSE 3 | SE 4 | — | — | — | NW 2 |
33 | 116 | 24 | 1 | 3 | 3 | 1 | 7 | — | — | 6 | 2 | — | 5 | 1 | 4 | 14 | — | — | — | 1 | |
Nearest Offshore or Glassy | |||||||||||||||||||||
Distance (km) | 1375 | 261 | 556 | 376 | 146 | 102 | 85 | 59 | 98 | 376 | 119 | 98 | 98 | 528 | 131 | 325 | 1001 | 30 | 42 | 0 | 2 |
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.











