Surf Forecasts:
Diamond Beach surf forecast from 7 Aug 2026:
- Best quality surf: Saturday 8 Aug, 2AM (local time) - 3.5ft (1.1m), 5s period, S swell with cross-offshore winds.
- Most powerful swell: Saturday 8 Aug, 2AM (local time) - 3.5ft (1.1m), 5s period, S swell with 64 kJ wave energy.
- Next surfable swell (1★+): Saturday 8 Aug, 2AM (local time) - 3.5ft (1.1m), 5s 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 2AM. The primary swell is predicted to be 1.1m and 5s period with a secondary swell of 0.1m and 9s. Another secondary swell of 0.1m and 9s is also forecast. 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 5s and forecast to arrive on Saturday (Aug 08) 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 0.5m 3s period and expected on Wednesday (Aug 12) at 2AM.
| Wave Type | Time (EDT) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | 2AM (Sat 8th Aug) | 3.5ft (1.1m) 5s |
| Best Surf | 2AM (Sat 8th Aug) | 3.5ft (1.1m) 5s |
| Most Powerful | 2AM (Sat 8th Aug) | 3.5ft (1.1m) 5s |
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.
Honestly, it’s a rough patch for surf. We’ve got a solid 16-day window, but there’s nothing pushing through that’s going to get the heart rate up. The first few days are a write-off, with tiny, weak waves and poor conditions. The swell energy is just pathetic, mostly in the low to mid-20s and 30s. You’re looking at ankle-biters under 3ft and jumbled, cross-shore winds. It’s not even worth paddling out for a log.
We’ll see a clearer stretch from the 11th through the 14th, with light winds and clean conditions, but the swell stays small and inconsistent. Even with the clean surface, there’s just not enough power. The only thing that’s clean is the water, not the surf.
There’s a little bump of energy around the 16th, where we see the swell nudge up to `3ft` with a period of `5 seconds`. That’s short-period windswell junk, not a proper groundswell. The energy reading goes to `56`, which is still weak, and winds are offshore for the afternoon. But as a surf option, it’s still pretty ordinary.
The best of a bad lot actually shows up on the 18th and 19th. We get a period from the SE at `9 seconds`, which is a better sign. The energy picks up to `40` on the 19th, but the wind turns onshore and gets fresh, so it’ll be lumpy. On the 18th, the morning is glassy with light winds, and that little `1ft` of SE swell might just offer a few clean, soft rollers. But it’s still small, and I’m not going to oversell it.
The water temperature is about average for this time of year, coming in at `76°` at the start, with no major anomaly to talk about.
Honestly, the only consistent story here is the lack of consistent waves. This is a period for fixing your gear, watching surf flicks, or taking up golf. I wouldn't be surprised if it stays flat for long stretches. It’s one of those blank runs that can happen. Forecaster’s can change, but right now, don’t cancel your plans for this.
Alright, I’ll see you in the water when it decides to show up.
Rusty
Short Range ForecastMostly dry. Warm (max 31°C on Fri afternoon, min 23°C on Sat morning). Winds decreasing (fresh winds from the SW on Fri night, light winds from the W by Sun night). | Days 4-6 Weather SummaryLight rain (total 4mm), mostly falling on Tue night. Warm (max 31°C on Tue afternoon, min 22°C on Tue night). Wind will be generally light. | ||||||||||||||||||||
Friday 7 | Saturday 8 | Sunday 9 | Monday 10 | Tuesday 11 | Wednesday 12 | Thursday 13 | |||||||||||||||
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 4 | S 5 | S 6 | S 6 | S 6 | S 6 | S 6 | S 6 | S 6 | S 6 | S 6 | S 5 | SSE 6 | SSE 6 | SSE 5 | SSE 6 | S 4 | SSE 4 | SSE 4 | SSE 6 |
Wave Graph  | |||||||||||||||||||||
 kJ | 28 | 28 | 64 | 25 | 23 | 60 | 30 | 18 | 54 | 19 | 18 | 15 | 15 | 11 | 10 | 3 | 6 | 6 | 4 | 3 | 6 |
Wind (km/h) | |||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | cross | cross-on | cross-off | cross-off | cross | cross-off | cross-off | cross-on | cross-off | cross-off | cross-on | cross-off | off | cross-off | off | cross-off | cross-off | glassy | on | cross-on | off |
High Tide | 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 | 9:27AM1.58m | 9:41PM1.75m | ||||||||
Low Tide | 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 | 3:14PM-0.09m | 3:53AM-0.19m | |||||||
 | |  | | | |  | |  | | | | | |  | | | |  |  |  | |
 | 6:05 | — | — | 6:05 | — | — | 6:05 | — | — | 6:07 | — | — | 6:07 | — | — | 6:09 | — | — | 6:09 | — | — |
 | — | 8:04 | — | — | 8:02 | — | — | 8:01 | — | — | 8:00 | — | — | 7:59 | — | — | 7:58 | — | — | 7:57 | — |
mm | — | — | — | — | — | — | — | — | — | — | — | — | — | — | 4 | — | — | — | 2 | 3 | 1 |
Temp °C | 28 | 31 | 29 | 26 | 31 | 31 | 27 | 31 | 31 | 26 | 30 | 30 | 27 | 31 | 29 | 25 | 27 | 28 | 24 | 25 | 25 |
Feels °C | 30 | 32 | 28 | 28 | 32 | 33 | 28 | 33 | 31 | 28 | 31 | 30 | 29 | 33 | 31 | 23 | 27 | 28 | 25 | 27 | 29 |
Swell 1 Height (m) Direction Period (s) | S 6 | E 10 | E 9 | S 6 | SE 8 | SE 7 | S 6 | ESE 7 | S 6 | S 6 | SE 10 | S 6 | S 5 | SSE 6 | SSE 6 | SSE 5 | SE 8 | SSE 5 | SSE 4 | SSE 4 | SSE 6 |
| kJ | 23 | 2 | 2 | 23 | 23 | 9 | 30 | 5 | 23 | 19 | 4 | 15 | 15 | 11 | 10 | 3 | 3 | 3 | 4 | 2 | 6 |
Swell 2 Height (m) Direction Period (s) | E 11 | E 10 | E 9 | SE 8 | E 9 | E 9 | E 9 | E 8 | — | E 10 | E 8 | SE 10 | SE 9 | SE 9 | SE 9 | SE 8 | — | SE 8 | SE 8 | SE 8 | SE 8 |
| kJ | 2 | 2 | 2 | 25 | 1 | 2 | 2 | 1 | — | 2 | 1 | 4 | 3 | 3 | 3 | 3 | — | 3 | 3 | 3 | 3 |
Swell 3 Height (m) Direction Period (s) | E 9 | E 10 | — | E 9 | — | — | E 9 | — | — | E 8 | E 8 | E 8 | E 8 | — | E 8 | E 8 | E 7 | — | — | S 5 | E 10 |
| kJ | 2 | 2 | — | 2 | — | — | 2 | — | — | 1 | 1 | 1 | 1 | — | 1 | 1 | 1 | — | — | 1 | 2 |
Wind waves Height (m) Direction Period (s) | S 5 | S 4 | S 5 | WSW 3 | S 6 | S 6 | W 3 | S 6 | S 6 | — | S 6 | — | — | — | W 3 | WNW 3 | SSE 6 | S 4 | — | — | — |
| kJ | 28 | 28 | 64 | 2 | 21 | 60 | 1 | 18 | 54 | — | 18 | — | — | — | 5 | 2 | 6 | 6 | — | — | — |
Nearest Offshore or Glassy | |||||||||||||||||||||
Distance (km) | 3 | 158 | 0 | 2 | 28 | 0 | 28 | 28 | 0 | 85 | 1009 | 1001 | 553 | 131 | 273 | 289 | 558 | 323 | 289 | 347 | 323 |
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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