Surf Forecasts:
Diamond Beach surf forecast from 23 Jul 2026:
- Best quality surf: Thursday 30 Jul, 8AM (local time) - 2.5ft (0.7m), 8s period, SSE swell with offshore winds.
- Most powerful swell: Sunday 26 Jul, 8AM (local time) - 3.5ft (1.0m), 7s period, ENE swell with 102 kJ wave energy.
- Next surfable swell (1★+): Thursday 30 Jul, 8AM (local time) - 2.5ft (0.7m), 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 Thursday (Jul 30) at 8AM. The primary swell is predicted to be 0.7m and 8s period with a secondary swell of 0.1m and 8s. Another secondary swell of 0.5m and 4s is also forecast. The wind is predicted to be offshore as the swell arrives.
The most powerful waves expected at Diamond Beach in the next 16 days are 1.0m 7s and forecast to arrive on Sunday (Jul 26) at 8AM. Winds are predicted to be cross-offshore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 0.6m 4s period and expected on Tuesday (Jul 28) at 2AM.
| Wave Type | Time (EDT) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | 8AM (Thu 30th Jul) | 2.5ft (0.7m) 8s |
| Best Surf | 8AM (Thu 30th Jul) | 2.5ft (0.7m) 8s |
| Most Powerful | 8AM (Sun 26th Jul) | 3.5ft (1.0m) 7s |
Table - best surf conditions forecast for Diamond Beach over the next 16 days.
The Lowdown
Alright, Rusty here. Let’s take a look at what’s cookin’ for our local stretch.
Honestly, mate, I gotta be straight with you – the next 16 days are a real bummer. There’s not a single decent wave on the cards for Diamond Beach. We’re looking at a long, flat spell with basically no quality surf to get excited about.
The whole window is a write-off. From Thursday afternoon, 23 July, right through to Friday afternoon, 7 August, every single forecast is calling for “poor surf conditions.” The swell is tiny, mostly around 0.7 ft to 4 ft, and the energy is weak, with the combined swell energy never breaking past 139 (moderate at best, but mostly in the low double digits). The wind is nearly always on, cross, or cross-on, chopping up whatever dribble is there. Even the few moments of glassy or offshore wind, like on the morning of 31 July, are wasted on swell that’s only 1 ft with a measly 8-second period.
The water temp is sitting at 76°F on the 23rd, which is about a degree and a half warmer than average for this time of year – nothin’ wild, but a touch on the warm side. Doesn’t matter much when there’s no surf to enjoy it in.
Diamond Beach is an exposed SE spot, ideal for a SE swell, but the few pulses that come from that direction are tiny and weak. The wind is a consistent problem. It’s a beach setup, so with the wind and weak swell, it’d be more interesting for kite surfing than paddling out. There’s just nothing for a surfer here.
Don’t get too down, though. These blank runs happen in this area, and forecasts can change. For now, leave the board in the car and save your energy.
Rusty.
Short Range ForecastMostly dry. Warm (max 23°C on Thu afternoon, min 20°C on Sat night). Wind will be generally light. | Days 5-7 Weather SummaryHeavy rain (total 22mm), heaviest during Mon night. Warm (max 25°C on Wed morning, min 21°C on Sun night). Winds increasing (light winds from the SW on Mon morning, fresh winds from the S by Mon night). | |||||||||||||||||||
Thu 23 | Friday 24 | Saturday 25 | Sunday 26 | Monday 27 | Tuesday 28 | Wednesday 29 | ||||||||||||||
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 | E 4 | E 6 | E 6 | E 6 | E 7 | ENE 7 | E 7 | SE 8 | SE 8 | S 4 | SSE 5 | SE 7 | S 6 | SSE 6 | SSE 7 | SSE 7 | SSE 7 |
Wave Graph  | ||||||||||||||||||||
 kJ | 21 | 20 | 20 | 25 | 34 | 83 | 92 | 77 | 85 | 31 | 22 | 15 | 34 | 51 | 25 | 18 | 23 | 37 | 29 | 32 |
Wind (km/h) | ||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | on | cross | cross-on | cross-on | cross-on | cross | cross | cross-off | cross | cross-on | cross-on | cross-on | cross-on | cross-off | off | cross-on | cross-off | cross-off | cross-on | cross-off |
High Tide | 4:36PM1.41m | 4:57AM1.09m | 5:30PM1.41m | 5:56AM1.10m | 6:23PM1.44m | 6:51AM1.14m | 7:11PM1.49m | 7:39AM1.19m | 7:55PM1.53m | 8:22AM1.24m | 8:35PM1.56m | 9:02AM1.28m | 9:12PM1.58m | |||||||
Low Tide | 10:54PM0.29m | 10:49AM0.28m | 11:44PM0.25m | 11:38AM0.27m | 00:32AM0.20m | 12:26PM0.24m | 1:17AM0.15m | 1:12PM0.21m | 2:01AM0.10m | 1:58PM0.18m | 2:43AM0.05m | 2:42PM0.16m | 3:22AM0.02m | |||||||
 |  | | |  | | | | | | | |  |  |  | | | | | | |
 | — | — | 5:52 | — | — | 5:52 | — | — | 5:54 | — | — | 5:54 | — | — | 5:56 | — | — | 5:56 | — | — |
 | 8:19 | — | — | 8:17 | — | — | 8:16 | — | — | 8:15 | — | — | 8:15 | — | — | 8:14 | — | — | 8:14 | — |
mm | — | — | — | — | — | — | — | — | — | — | — | — | — | 8 | 1 | 3 | 10 | — | — | 21 |
Temp °C | 23 | 22 | 22 | 23 | 22 | 22 | 23 | 22 | 22 | 23 | 22 | 23 | 24 | 24 | 24 | 24 | 23 | 25 | 26 | 25 |
Feels °C | 23 | 21 | 19 | 20 | 21 | 19 | 21 | 20 | 21 | 22 | 22 | 22 | 22 | 22 | 26 | 27 | 25 | 27 | 29 | 27 |
Swell 1 Height (m) Direction Period (s) | SSE 7 | SE 8 | SE 8 | SE 8 | SE 8 | ESE 8 | — | E 7 | E 7 | E 7 | E 6 | SE 8 | E 7 | SSE 5 | S 6 | S 6 | SSE 6 | SSE 7 | SSE 7 | SSE 7 |
| kJ | 16 | 20 | 20 | 11 | 20 | 6 | — | 77 | 33 | 31 | 12 | 15 | 8 | 51 | 16 | 18 | 23 | 37 | 29 | 32 |
Swell 2 Height (m) Direction Period (s) | SE 8 | S 6 | S 6 | S 5 | S 5 | — | — | SE 8 | SE 8 | SE 8 | SE 8 | E 7 | ENE 7 | E 7 | SE 7 | ESE 8 | SE 8 | E 9 | SE 10 | SSE 9 |
| kJ | 21 | 7 | 3 | 1 | 1 | — | — | 18 | 21 | 23 | 22 | 15 | 15 | 3 | 25 | 7 | 10 | 6 | 4 | 8 |
Swell 3 Height (m) Direction Period (s) | ENE 4 | ENE 4 | SE 5 | — | — | — | — | SSE 7 | — | S 6 | — | — | — | ENE 7 | E 6 | E 6 | E 7 | — | — | E 8 |
| kJ | 3 | 2 | 5 | — | — | — | — | 9 | — | 3 | — | — | — | 9 | 3 | 3 | 4 | — | — | 1 |
Wind waves Height (m) Direction Period (s) | — | — | ENE 4 | E 4 | E 6 | E 6 | E 6 | — | ENE 7 | — | SSW 3 | SW 3 | S 4 | WSW 4 | WSW 3 | — | — | ENE 8 | E 4 | ENE 4 |
| kJ | — | — | 10 | 25 | 34 | 83 | 92 | — | 85 | — | 1 | 2 | 34 | 10 | 1 | — | — | 14 | 9 | 6 |
Nearest Offshore or Glassy | ||||||||||||||||||||
Distance (km) | 28 | 98 | 227 | 348 | 5 | 379 | 502 | 8 | 8 | 8 | 42 | 325 | 1375 | 23 | 2 | 42 | 95 | 2 | 325 | 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.
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