
Surf Forecasts:
Diamond Beach surf forecast from 6 Aug 2026:
- Best quality surf: Saturday 8 Aug, 8AM (local time) - 2.5ft (0.7m), 6s period, S swell with cross-offshore winds.
- Most powerful swell: Sunday 9 Aug, 2AM (local time) - 3.5ft (1.1m), 6s period, S swell with 100 kJ wave energy.
- Next surfable swell (1★+): Saturday 8 Aug, 8AM (local time) - 2.5ft (0.7m), 6s period with S 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 Saturday (Aug 08) at 8AM. The primary swell is predicted to be 0.7m and 6s period with a secondary swell of 0.4m 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 1.1m 6s and forecast to arrive on Sunday (Aug 09) at 2AM. Winds are predicted to be cross-offshore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 0.4m 3s period and expected on Sunday (Aug 09) at 5AM.
| Wave Type | Time (EDT) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | 8AM (Sat 8th Aug) | 2.5ft (0.7m) 6s |
| Best Surf | 8AM (Sat 8th Aug) | 2.5ft (0.7m) 6s |
| Most Powerful | 2AM (Sun 9th Aug) | 3.5ft (1.1m) 6s |
Table - best surf conditions forecast for Diamond Beach over the next 16 days.
The Lowdown
Alright, let’s get real about the next couple of weeks. To be straight with you, it’s looking pretty bleak out there. We’ve got a long stretch of nothing on the horizon, so if you’re Jonesing for a wave, you might want to find another hobby for a while.
The whole 16-day window is a write-off for any decent surf. The swell is tiny, the periods are short, and the energy is just completely gutless. We are talking weak energy readings all the way through, with values mostly in the 40s, 50s, and 60s, and often dropping below 20. For the first week, it’s just mush. There’s a small bump around the 18th and 19th, but it’s still poor, and by then the winds are howling offshore. Even then, the energy only ticks up to 120, which is still just moderate at best, and the waves are barely 3 feet.
Diamond Beach itself is inconsistent and exposed, so it’s not doing us any favors. The water temp is pretty much average for this time of year, so no surprises there.
Let’s break it down. From the 6th through the 17th, there is nothing. The swell is between 0.3 ft and 3 ft, with periods under 7 seconds, and the winds are mostly cross-shore or cross-on, making it choppy and messy. A couple of mornings look glassy or clean, but with that little swell, it’s just not worth the paddle. The energy is weak, often below 60, and sometimes as low as 5. It’s a dead ocean.
Then on the 18th, we see a slight pulse. Tuesday morning has a clean 3 ft at 5 seconds with light offshore winds. The afternoon picks up a bit to 4 ft, but it’s still short-period windswell and the energy is only at 120. The offshore wind is moderate, so it will be clean, but it’s still not great.
Wednesday the 19th is the closest thing we get to a highlight. Morning has a 3 ft at 7 seconds with moderate offshore winds, and the energy reading is 99, just under that moderate threshold. It’s “surfable” but very ordinary. This is the one time the score isn’t zero, but it’s still only a 1/10. The afternoon drops off again.
So, if you’re desperate, the morning of Wednesday the 19th is your best bet. It’s not going to be great, but it’s the only thing on the board that’s even surfable. After that, it fades back to nothing. This is a blank run, and for this area, that seems to be the norm when it’s this flat. Forecasts can change, but as it stands, I’d be finding something else to do.
Rusty.
Short Range ForecastModerate rain (total 10mm), heaviest on Fri night. Warm (max 30°C on Thu afternoon, min 23°C on Sat night). Wind will be generally light. | Days 4-6 Weather SummaryLight rain (total 2mm), mostly falling on Mon night. Warm (max 31°C on Sun night, min 23°C on Sun morning). Wind will be generally light. | ||||||||||||||||||||
Thursday 6 | Friday 7 | Saturday 8 | Sunday 9 | Monday 10 | Tuesday 11 | Wednesday 12 | |||||||||||||||
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) | S 6 | S 5 | S 6 | S 6 | S 4 | S 5 | S 6 | S 6 | S 6 | SSE 7 | S 6 | S 5 | SSE 6 | SSE 6 | SSE 6 | SSE 6 | SSE 6 | SSE 6 | SSE 6 | SSE 6 | S 4 |
Wave Graph | |||||||||||||||||||||
22 | 42 | 74 | 31 | 27 | 46 | 26 | 36 | 100 | 34 | 21 | 37 | 11 | 11 | 7 | 3 | 12 | 6 | 6 | 11 | 7 | |
Wind (km/h) | |||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | cross | cross-on | cross-on | cross | cross-on | glassy | cross-off | cross | cross-off | cross-off | cross-on | cross-off | cross-on | cross-on | cross-off | cross-off | cross-on | cross-off | off | off | cross-off |
High Tide | 2:45PM1.52m | 3:17AM1.22m | 3:47PM1.54m | 4:27AM1.21m | 4:56PM1.58m | 5:39AM1.25m | 6:05PM1.64m | 6:46AM1.34m | 7:08PM1.71m | 7:45AM1.44m | 8:03PM1.76m | 8:38AM1.52m | 8:53PM1.78m | ||||||||
Low Tide | 9:17PM0.26m | 9:07AM0.17m | 10:29PM0.20m | 10:20AM0.15m | 11:33PM0.12m | 11:26AM0.09m | 00:31AM0.02m | 12:28PM0.03m | 1:26AM-0.07m | 1:26PM-0.03m | 2:18AM-0.14m | 2:22PM-0.08m | 3:07AM-0.18m | ||||||||
6:03 | — | — | 6:05 | — | — | 6:05 | — | — | 6:05 | — | — | 6:07 | — | — | 6:07 | — | — | 6:09 | — | — | |
— | 8:05 | — | — | 8:04 | — | — | 8:02 | — | — | 8:01 | — | — | 8:00 | — | — | 7:59 | — | — | 7:58 | — | |
mm | — | — | — | — | 2 | 6 | — | 1 | 1 | — | — | — | — | — | 1 | — | — | 1 | — | — | — |
Temp °C | 27 | 30 | 28 | 28 | 30 | 28 | 26 | 30 | 29 | 25 | 30 | 31 | 27 | 28 | 29 | 27 | 29 | 26 | 26 | 27 | 27 |
Feels °C | 29 | 30 | 27 | 31 | 31 | 27 | 28 | 31 | 29 | 27 | 31 | 32 | 28 | 30 | 31 | 28 | 31 | 28 | 26 | 26 | 25 |
Swell 1 Height (m) Direction Period (s) | SE 6 | E 9 | — | E 11 | SE 8 | SE 8 | SE 8 | SE 8 | E 9 | SSE 7 | S 6 | S 4 | SSE 6 | SSE 6 | SSE 6 | S 4 | SSE 6 | SSE 6 | SSE 6 | SE 8 | S 4 |
14 | 2 | — | 2 | 2 | 9 | 23 | 22 | 2 | 34 | 21 | 10 | 11 | 11 | 7 | 2 | 12 | 6 | 6 | 3 | 7 | |
Swell 2 Height (m) Direction Period (s) | E 9 | — | — | E 9 | E 10 | E 9 | E 9 | E 9 | — | E 10 | SE 8 | SSE 6 | E 10 | SE 10 | SE 10 | SSE 6 | SE 9 | SE 9 | SE 8 | E 11 | S 6 |
2 | — | — | 2 | 2 | 2 | 1 | 1 | — | 2 | 2 | 7 | 2 | 4 | 4 | 3 | 3 | 3 | 3 | 2 | 2 | |
Swell 3 Height (m) Direction Period (s) | — | — | — | — | E 10 | — | — | — | — | — | E 8 | — | E 9 | E 8 | E 8 | SE 9 | — | — | — | — | SE 8 |
— | — | — | — | 2 | — | — | — | — | — | 1 | — | 2 | 1 | 1 | 3 | — | — | — | — | 3 | |
Wind waves Height (m) Direction Period (s) | S 6 | S 5 | S 6 | S 6 | S 4 | S 5 | S 6 | S 6 | S 6 | W 3 | WSW 2 | S 5 | — | SSW 2 | SW 3 | W 3 | W 3 | NW 3 | — | SSE 6 | — |
22 | 42 | 74 | 31 | 27 | 46 | 26 | 36 | 100 | 1 | 1 | 37 | — | 1 | 3 | 1 | 2 | 2 | — | 11 | — | |
Nearest Offshore or Glassy | |||||||||||||||||||||
Distance (km) | 142 | 1011 | 136 | 28 | 1508 | 2 | 29 | 28 | 0 | 32 | 42 | 2 | 289 | 1001 | 597 | 2312 | 2613 | 323 | 289 | 1135 | 230 |
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.











