Surf Forecasts:
Diamond Beach surf forecast from 19 Jul 2026:
- Best quality surf: Wednesday 22 Jul, 2PM (local time) - 3ft (0.9m), 8s period, SSE swell with cross-offshore winds.
- Most powerful swell: Wednesday 22 Jul, 5AM (local time) - 5ft (1.6m), 8s period, S swell with 324 kJ wave energy.
- Next surfable swell (1★+): Wednesday 22 Jul, 2PM (local time) - 3ft (0.9m), 8s 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 Wednesday (Jul 22) at 2PM. The primary swell is predicted to be 0.9m and 8s 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 1.6m 8s and forecast to arrive on Wednesday (Jul 22) at 5AM. Winds are predicted to be cross-offshore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 0.9m 4s period and expected on Wednesday (Jul 22) at 8AM.
| Wave Type | Time (EDT) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | 2PM (Wed 22nd Jul) | 3ft (0.9m) 8s |
| Best Surf | 2PM (Wed 22nd Jul) | 3ft (0.9m) 8s |
| Most Powerful | 5AM (Wed 22nd Jul) | 5ft (1.6m) 8s |
Table - best surf conditions forecast for Diamond Beach over the next 16 days.
The Lowdown
Alright folks, Rusty here. Let's have a look at what's on the menu for Diamond Beach over the next couple of weeks.
Straight up, I gotta be honest with you – this is a tough stretch. We're looking at a long, dry run with barely a whisper of rideable surf. The first real glimmer of anything half-decent doesn't show up until Wednesday, July 22nd, and even then, it's a far cry from a classic.
For the days leading up to that, the swell is tiny and the conditions are messy. Tuesday the 21st has a bit of size showing 3 ft from the SSE, but it's onshore and stormy, so you're better off doing something else. The combined wave energy is weak, sitting around the 30-40 mark.
Now, Wednesday the 22nd is the only day that even comes close to being worth a look. The morning sees a bit of cross-offshore wind with a 3 ft SSE swell, and the energy bumps up into the moderate range (112). It's not great, but it's the cleanest option. The afternoon is the best of the lot: a glassy offshore breeze from the NW with a 3 ft SSE swell (108 energy). The period is a short 9 seconds, so it's not gonna have much punch, but for a beginner, it would be the most user-friendly window. It's an exposed beach break, so the wind is everything.
From Thursday the 23rd onwards, it's a slow bleed back down to nothing. The swell drops, the wind gets messy, and the energy levels fall back to weak. We see another little spike on Sunday the 26th with 3 ft from the E and a jump in energy to 162, but it's onshore. The last few days of the month and into August are almost completely flat, with tiny less than 1 ft to 2 ft waves and poor form.
So, what's the call? The only standout here is the Wednesday afternoon window. It's clean, it's offshore, and the swell is just big enough to push a small wave. For a beginner, that's a fun little window. For anyone else? It's a long wait for a very average offering. Keep your expectations in check.
Rusty.
Short Range ForecastHeavy rain (total 30mm), heaviest during Sat night. Warm (max 27°C on Sun afternoon, min 21°C on Sun night). Winds decreasing (strong winds from the SW on Sat night, light winds from the NE by Sun night). | Days 5-7 Weather SummaryHeavy rain (total 24mm), heaviest during Tue night. Warm (max 29°C on Wed afternoon, min 19°C on Thu morning). Winds decreasing (fresh winds from the WSW on Tue night, calm by Thu night). | ||||||||||||||||||
Sunday 19 | Monday 20 | Tuesday 21 | Wednesday 22 | Thursday 23 | Friday 24 | ||||||||||||||
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) | S 6 | S 7 | S 8 | SSE 7 | SSE 8 | SSE 7 | SSE 3 | SSE 5 | SE 5 | S 8 | SSE 8 | SSE 9 | SSE 9 | SSE 8 | SE 8 | ESE 7 | SE 7 | SE 8 | ESE 8 |
Wave Graph  | |||||||||||||||||||
 kJ | 62 | 34 | 29 | 17 | 19 | 17 | 9 | 39 | 38 | 217 | 112 | 108 | 108 | 54 | 39 | 32 | 33 | 42 | 56 |
Wind (km/h) | |||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | cross | off | off | cross-off | cross | on | on | on | cross-on | cross | cross-off | off | cross-off | cross-off | cross-on | cross-off | cross | cross-on | cross |
High Tide | 00:36AM1.52m | 1:19PM1.50m | 1:27AM1.40m | 2:08PM1.48m | 2:17AM1.29m | 2:56PM1.44m | 3:07AM1.20m | 3:45PM1.42m | 4:00AM1.13m | 4:36PM1.41m | 4:57AM1.09m | 5:30PM1.41m | |||||||
Low Tide | 6:34AM-0.04m | 6:56PM0.17m | 7:20AM0.06m | 7:54PM0.25m | 8:10AM0.16m | 8:57PM0.30m | 9:03AM0.23m | 9:58PM0.31m | 9:58AM0.27m | 10:54PM0.29m | 10:49AM0.28m | 11:44PM0.25m | |||||||
 |  | |  | | | |  |  |  | |  |  | | | | | | | |
 | — | 5:48 | — | — | 5:48 | — | — | 5:50 | — | — | 5:50 | — | — | 5:52 | — | — | 5:52 | — | — |
 | 8:22 | — | 8:22 | — | — | 8:21 | — | — | 8:20 | — | — | 8:19 | — | — | 8:19 | — | — | 8:17 | — |
mm | 25 | — | — | — | — | — | — | 1 | 4 | 24 | — | — | — | — | — | — | — | — | — |
Temp °C | 24 | 25 | 27 | 27 | 23 | 24 | 24 | 25 | 25 | 26 | 26 | 29 | 27 | 22 | 23 | 23 | 23 | 24 | 23 |
Feels °C | 23 | 24 | 26 | 26 | 21 | 23 | 23 | 26 | 25 | 26 | 26 | 29 | 28 | 20 | 22 | 24 | 22 | 23 | 21 |
Swell 1 Height (m) Direction Period (s) | S 6 | S 7 | S 8 | SSE 7 | SSE 8 | SSE 7 | NE 4 | — | SE 8 | E 4 | SSE 8 | SSE 9 | SSE 9 | SSE 8 | S 8 | ESE 7 | SE 7 | SE 8 | ESE 8 |
| kJ | 62 | 34 | 29 | 17 | 19 | 17 | 1 | — | 2 | 2 | 112 | 108 | 108 | 54 | 30 | 32 | 33 | 42 | 56 |
Swell 2 Height (m) Direction Period (s) | SE 13 | E 13 | E 13 | E 12 | E 12 | ENE 4 | SE 8 | — | E 12 | — | — | — | — | — | ENE 4 | SSE 7 | S 7 | SSE 7 | SSE 8 |
| kJ | 7 | 3 | 3 | 3 | 3 | 1 | 3 | — | 3 | — | — | — | — | — | 1 | 10 | 9 | 9 | 11 |
Swell 3 Height (m) Direction Period (s) | — | — | SE 13 | — | SE 12 | E 12 | SE 12 | — | — | — | — | — | — | — | — | SSE 10 | S 10 | — | — |
| kJ | — | — | 7 | — | 6 | 3 | 6 | — | — | — | — | — | — | — | — | 9 | 2 | — | — |
Wind waves Height (m) Direction Period (s) | WSW 4 | NW 3 | WNW 3 | NE 3 | NE 3 | — | SSE 3 | SSE 5 | SE 5 | S 8 | WSW 4 | W 3 | NW 3 | NE 3 | SE 8 | NE 4 | NE 4 | ENE 4 | — |
| kJ | 10 | 3 | 2 | 2 | 1 | — | 9 | 39 | 38 | 217 | 17 | 2 | 2 | 3 | 39 | 3 | 3 | 13 | — |
Nearest Offshore or Glassy | |||||||||||||||||||
Distance (km) | 85 | 30 | 32 | 98 | 260 | 376 | 597 | 677 | 1166 | 261 | 23 | 0 | 3 | 3 | 372 | 2 | 3 | 346 | 5 |
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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