Surf Forecasts:
Diamond Beach surf forecast from 26 Jul 2026:
- Best quality surf: Friday 31 Jul, 2AM (local time) - 4.5ft (1.4m), 6s period, NE swell with cross-offshore winds.
- Most powerful swell: Friday 31 Jul, 5AM (local time) - 4.5ft (1.3m), 7s period, ENE swell with 154 kJ wave energy.
- Next surfable swell (1★+): Wednesday 29 Jul, 8AM (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 Wednesday (Jul 29) at 8AM. The primary swell is predicted to be 0.9m and 7s period with a secondary swell of 0.2m and 6s. 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 1.3m 7s and forecast to arrive on Friday (Jul 31) 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 0.5m 4s period and expected on Wednesday (Jul 29) at 2AM.
| Wave Type | Time (EDT) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | 8AM (Wed 29th Jul) | 3ft (0.9m) 7s |
| Best Surf | 2AM (Fri 31st Jul) | 4.5ft (1.4m) 6s |
| Most Powerful | 5AM (Fri 31st Jul) | 4.5ft (1.3m) 7s |
Table - best surf conditions forecast for Diamond Beach over the next 16 days.
The Lowdown
G’day, I’m Rusty. Let’s get into it.
We’ve got a long stretch ahead here at Diamond Beach, and I’ll be honest with you – it’s mostly a flat, quiet run. The only window that even gets close to a surfable wave is a small window on Wednesday 29 July into Thursday 30 July, but even then, it’s pretty ordinary. The rest of the 16-day outlook is a whole lot of nothing, with a big gap from the end of July right through to the end of the forecast. Don’t get your hopes up, but let’s see what we’ve got.
The water temperature is sitting at 74°, which is right around average for this spot. Nothing out of the ordinary there.
The one and only highlight falls on Wednesday 29 July morning. The swell is coming from the SSE at 3 ft with a period of 7 seconds. That’s a short-period, windswell-type wave, and the combined energy of all swells directed here is a weak 86 – so it’s small, but it’s the biggest we’ll see. The wind is offshore from the NW at 12 mph, which is actually a major positive, because it’ll keep the surface clean. The break is an exposed beach, and with the direction matching the optimum swell direction (SE), it’s about as good as it gets in this window. It’s inconsistent, so you’ll be waiting for sets, but if you’re a beginner, this is your only shot. The crowds are sometimes a problem, but on a Wednesday morning with waves this small, you might dodge them.
Thursday 30 July morning offers a bit of surfable swell – 2 ft from the SSE (8 seconds) – with a cross-offshore wind from the north at 16 mph. The combined energy is 50. It’s clean, but the wave size is tiny. Not worth the drive unless you’re desperate. The afternoon is a little better at 2 ft with a period of 9 seconds (combined energy 79), but still very ordinary.
The rest of the month? From Friday 31 July onward, it’s all poor surf conditions. The swell drops to 1 ft or less, the wind goes onshore or cross-onshore, and the energy is in the 20–50 range. There’s nothing to chase. The run from 1 August to 10 August is a total blank – no recommendations at all. The break is inconsistent by nature, so this kind of long dry spell isn’t unusual for Diamond Beach.
Honestly, if you’re set on a paddle, aim for that Wednesday 29 July morning. Otherwise, it’s a kitesurfing kind of setup for the rest of it – light winds and small, messy waves don’t make for great surfing.
Rusty.
Short Range ForecastHeavy rain (total 23mm), heaviest during Tue night. Warm (max 25°C on Tue morning, min 21°C on Sun night). Winds increasing (light winds from the SW on Mon morning, fresh winds from the S by Tue afternoon). | Days 5-7 Weather SummaryLight rain (total 5mm), mostly falling on Wed night. Warm (max 26°C on Wed afternoon, min 20°C on Thu night). Wind will be generally light. | |||||||||||||||||||
Sun 26 | Monday 27 | Tuesday 28 | Wednesday 29 | Thursday 30 | Friday 31 | Saturday 1 | ||||||||||||||
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 | SSE 5 | SSE 8 | SSE 8 | SSE 7 | SSE 8 | SSE 8 | NE 6 | ENE 7 | ENE 6 | E 6 | SE 7 | SSE 7 | SE 7 |
Wave Graph  | ||||||||||||||||||||
 kJ | 23 | 21 | 15 | 14 | 15 | 16 | 17 | 66 | 64 | 64 | 48 | 54 | 58 | 152 | 85 | 55 | 20 | 13 | 18 | 12 |
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 | cross-on | cross | off | cross-off | cross-off | off | cross-off | cross-off | cross-off | on | cross | cross-on | cross-on | cross-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 | 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 | — | — | 5:56 | — | — | 5:56 | — | — | 5:58 | — | — | 5:58 | — | — | 5:58 | — | — |
 | 8:15 | — | — | 8:15 | — | — | 8:14 | — | — | 8:14 | — | — | 8:13 | — | — | 8:12 | — | — | 8:10 | — |
mm | — | 2 | — | — | 2 | 1 | — | 18 | — | — | 1 | 2 | 2 | — | — | — | — | — | — | — |
Temp °C | 23 | 23 | 22 | 24 | 23 | 25 | 25 | 25 | 23 | 26 | 24 | 22 | 23 | 22 | 23 | 24 | 23 | 24 | 25 | 25 |
Feels °C | 23 | 22 | 22 | 23 | 22 | 25 | 24 | 25 | 21 | 24 | 23 | 22 | 22 | 21 | 23 | 26 | 24 | 26 | 25 | 24 |
Swell 1 Height (m) Direction Period (s) | E 6 | SE 8 | SE 8 | SE 8 | SE 8 | SE 8 | SE 8 | SSE 5 | SSE 8 | SSE 8 | SSE 7 | SSE 8 | SSE 8 | SSE 9 | SSE 8 | SSE 8 | E 6 | SE 7 | ENE 6 | SE 7 |
| kJ | 18 | 21 | 15 | 14 | 15 | 16 | 17 | 66 | 64 | 64 | 48 | 54 | 58 | 56 | 28 | 28 | 20 | 13 | 7 | 12 |
Swell 2 Height (m) Direction Period (s) | SE 8 | E 6 | ENE 6 | ENE 6 | E 6 | E 6 | E 6 | E 6 | E 7 | E 7 | E 6 | ENE 5 | ENE 6 | E 10 | — | — | SSE 8 | ENE 6 | SE 8 | ENE 6 |
| kJ | 23 | 12 | 7 | 7 | 3 | 3 | 3 | 3 | 4 | 4 | 3 | 3 | 6 | 2 | — | — | 11 | 12 | 3 | 3 |
Swell 3 Height (m) Direction Period (s) | — | — | — | — | — | S 6 | — | E 9 | E 8 | E 8 | E 9 | — | — | — | — | — | SSE 9 | SE 9 | S 9 | SE 8 |
| kJ | — | — | — | — | — | 1 | — | 6 | 1 | 1 | 1 | — | — | — | — | — | 8 | 3 | 2 | 3 |
Wind waves Height (m) Direction Period (s) | — | SW 3 | — | S 3 | SSE 4 | SSE 4 | S 4 | WSW 4 | WNW 3 | WSW 2 | WNW 3 | — | — | NE 6 | ENE 7 | ENE 6 | — | — | SSE 7 | S 3 |
| kJ | — | 2 | — | 1 | 7 | 10 | 16 | 7 | 3 | 1 | 3 | — | — | 152 | 85 | 55 | — | — | 18 | 3 |
Nearest Offshore or Glassy | ||||||||||||||||||||
Distance (km) | 174 | 372 | 32 | 376 | 1014 | 23 | 376 | 102 | 257 | 0 | 23 | 29 | 5 | 0 | 5 | 2 | 2 | 30 | 85 | 392 |
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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