Surf Forecasts:
Diamond Beach surf forecast from 26 Jul 2026:
- Best quality surf: Thursday 30 Jul, 5AM (local time) - 3.5ft (1.1m), 6s period, ENE swell with offshore winds.
- Most powerful swell: Thursday 30 Jul, 5PM (local time) - 3ft (0.9m), 9s period, E swell with 126 kJ wave energy.
- Next surfable swell (1★+): Sunday 26 Jul, 8AM (local time) - 2.5ft (0.7m), 8s period with E 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 Sunday (Jul 26) at 8AM. The primary swell is predicted to be 0.7m and 8s period with a secondary swell of 0.7m and 6s. 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 0.9m 9s and forecast to arrive on Thursday (Jul 30) at 5PM. Winds are predicted to be cross-offshore at the time the swell arrives.
| Wave Type | Time (EDT) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | 8AM (Sun 26th Jul) | 2.5ft (0.7m) 8s |
| Best Surf | 5AM (Thu 30th Jul) | 3.5ft (1.1m) 6s |
| Most Powerful | 5PM (Thu 30th Jul) | 3ft (0.9m) 9s |
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 offer for the next couple of weeks.
Right off the bat, I gotta be straight with you – it’s a bleak start for Diamond Beach. We’re looking at a long stretch of nothing much at all. From Sunday the 26th of July right through to the tail end of the week, there’s just nothing worth paddling out for. The swell is tiny, mostly around 1.0ft to 2ft, with a short period of 8 seconds, and the wind is all over the shop – cross, onshore, and even glassy at one point, but the energy is just not there. The combined swell energy is weak, sitting at 41 or less, which is barely a ripple. It’s a real bummer.
We start to see a little glimmer of hope on Wednesday the 29th, with a bit more size coming in at 2ft, but it’s still a short period swell and the water temp is a comfortable 24°, which is about average for this time of year. Not much to get excited about though.
The real change comes Thursday the 30th of July. The swell picks up to 3ft from the East, with a period of 8 seconds. The combined energy jumps to 148, which is a moderate kick. The wind is a clean cross-off from the NNW, which is promising. It’s still not huge, but it’s the best we’ve seen. Friday the 31st drops off again, so don’t sleep on that Thursday window.
The weekend of the 1st and 2nd of August is a write-off. Onshore winds and weak, short-period slop. The combined energy is pitiful, in the 20s and 30s.
Now, we get into the second week. Monday the 3rd of August has a bit more push, with 4ft swell from the SSE and a period of 9 seconds. The combined energy hits 200, which is moderate. But the wind is a cross-shore breeze, so it’s not going to be clean. The following days are a mixed bag of small, weak swells.
The standout, if you can call it that, is Thursday the 6th of August. We get a 4ft swell from the South, with a period of 6 seconds. The wind goes glassy, which is a major positive, and the combined energy is 91. It’s described as surfable but very ordinary. It’s the best of a bad bunch.
Friday the 7th of August is similar. 4ft to 5ft swell from the South, with a period of 7 seconds. The wind is clean and cross-off. The combined energy gets up to 179, which is a moderate energy. Again, it’s not a classic, but it’s the only time in the whole forecast we see any consistency in size and clean conditions.
After that, the 8th, 9th, and 10th of August drop back into the doldrums with onshore wind and weak swell. A real flat spell to end the run.
Look, if you’re desperate for a paddle, Thursday the 6th and Friday the 7th of August are your best bets. Glassy and clean wind, and a bit of energy behind it. It’s not going to be epic, but it’s the only thing on the menu. Everything else is a hard pass.
Rusty.
Short Range ForecastModerate rain (total 10mm), heaviest on Tue afternoon. Warm (max 25°C on Tue afternoon, min 19°C on Sun morning). Wind will be generally light. | Days 4-6 Weather SummarySome drizzle, heaviest during Wed morning. Warm (max 26°C on Wed afternoon, min 20°C on Wed morning). Winds increasing (light winds from the NNW on Wed night, fresh winds from the NNW by Thu morning). | ||||||||||||||||||||
Sunday 26 | Monday 27 | Tuesday 28 | Wednesday 29 | Thursday 30 | Friday 31 | Saturday 1 | |||||||||||||||
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) | SE 8 | SE 8 | SE 8 | SE 8 | SE 8 | SE 8 | SE 8 | SE 8 | SE 4 | SSE 7 | SE 7 | SSE 8 | E 8 | E 9 | E 9 | E 8 | E 8 | E 8 | E 7 | SSE 4 | SSE 5 |
Wave Graph  | |||||||||||||||||||||
 kJ | 29 | 22 | 20 | 14 | 20 | 15 | 15 | 17 | 14 | 36 | 51 | 43 | 104 | 126 | 76 | 50 | 32 | 18 | 9 | 20 | 46 |
Wind (km/h) | |||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | cross | on | cross-off | cross-on | cross-on | cross-on | glassy | on | off | cross-off | off | off | cross-off | cross-off | cross-off | cross | on | on | on | on | on |
High Tide | 7:11PM1.49m | 7:39AM1.19m | 7:55PM1.53m | 8:22AM1.24m | 8:35PM1.56m | 9:02AM1.28m | 9:12PM1.58m | 9:39AM1.31m | 9:47PM1.57m | 10:15AM1.34m | 10:22PM1.54m | 10:52AM1.37m | 10:58PM1.49m | ||||||||
Low Tide | 12:26PM0.24m | 1:17AM0.15m | 1:12PM0.21m | 2:01AM0.10m | 1:58PM0.18m | 2:43AM0.05m | 2:42PM0.16m | 3:22AM0.02m | 3:23PM0.14m | 3:58AM-0.00m | 4:03PM0.14m | 4:33AM-0.01m | 4:42PM0.15m | ||||||||
 | |  | |  |  |  |  | |  | |  | | | | | | | | | | |
 | 5:54 | — | — | 5:54 | — | — | 5:56 | — | — | 5:56 | — | — | 5:58 | — | — | 5:58 | — | — | 5:58 | — | — |
 | — | 8:15 | — | — | 8:15 | — | — | 8:14 | — | — | 8:14 | — | — | 8:13 | — | — | 8:12 | — | — | 8:10 | — |
mm | — | — | — | — | 1 | 1 | — | 4 | 4 | 1 | — | — | — | — | — | — | — | — | — | — | — |
Temp °C | 22 | 23 | 23 | 23 | 24 | 23 | 24 | 25 | 25 | 21 | 26 | 25 | 21 | 22 | 22 | 23 | 23 | 23 | 23 | 23 | 23 |
Feels °C | 21 | 23 | 22 | 23 | 23 | 22 | 27 | 26 | 26 | 20 | 26 | 26 | 18 | 20 | 21 | 24 | 23 | 23 | 24 | 23 | 23 |
Swell 1 Height (m) Direction Period (s) | SE 8 | E 6 | SE 8 | SE 8 | SE 8 | SE 8 | SSE 5 | SSE 5 | ENE 6 | SSE 7 | SE 7 | SSE 8 | E 8 | E 9 | E 9 | E 8 | E 8 | E 8 | E 7 | E 7 | E 7 |
| kJ | 29 | 17 | 20 | 14 | 20 | 15 | 8 | 8 | 4 | 36 | 51 | 43 | 104 | 126 | 76 | 50 | 32 | 18 | 9 | 9 | 4 |
Swell 2 Height (m) Direction Period (s) | — | SE 8 | E 6 | ENE 6 | ENE 6 | E 6 | SE 8 | SE 8 | E 9 | E 6 | E 6 | — | SSE 8 | SSE 8 | SSE 9 | SE 8 | — | SE 9 | SE 9 | SE 9 | — |
| kJ | — | 22 | 11 | 6 | 7 | 3 | 15 | 17 | 6 | 1 | 1 | — | 44 | 40 | 33 | 18 | — | 3 | 3 | 3 | — |
Swell 3 Height (m) Direction Period (s) | — | — | — | — | — | — | E 6 | E 6 | S 5 | E 9 | E 8 | — | — | — | — | SSW 3 | — | — | — | — | — |
| kJ | — | — | — | — | — | — | 3 | 3 | 1 | 2 | 1 | — | — | — | — | 1 | — | — | — | — | — |
Wind waves Height (m) Direction Period (s) | ENE 6 | — | — | — | S 3 | S 4 | — | — | SE 4 | ENE 4 | ENE 4 | ENE 5 | — | — | SSW 3 | — | S 3 | S 4 | S 4 | SSE 4 | SSE 5 |
| kJ | 12 | — | — | — | 2 | 14 | — | — | 14 | 8 | 3 | 42 | — | — | 4 | — | 10 | 15 | 8 | 20 | 46 |
Nearest Offshore or Glassy | |||||||||||||||||||||
Distance (km) | 179 | 372 | 20 | 144 | 1509 | 498 | 102 | 571 | 20 | 201 | 2 | 0 | 376 | 208 | 3 | 3 | 346 | 313 | 405 | 1132 | 509 |
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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