Surf Forecasts:
Diamond Beach surf forecast from 10 Sep 2026:
- Best quality surf: Sunday 13 Sep, 5AM (local time) - 3ft (0.9m), 6s period, SE swell with cross-offshore winds.
- Most powerful swell: Saturday 12 Sep, 11PM (local time) - 3.5ft (1.1m), 5s period, SE swell with 68 kJ wave energy.
- Next surfable swell (1★+): Sunday 13 Sep, 5AM (local time) - 3ft (0.9m), 6s period with SE 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 (Sep 13) at 5AM. The primary swell is predicted to be 0.9m and 6s period with a secondary swell of 0.3m and 10s. 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 (Sep 12) at 11PM. Winds are predicted to be cross-onshore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 0.4m 2s period and expected on Friday (Sep 11) at 8AM.
| Wave Type | Time (EDT) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | 5AM (Sun 13th Sep) | 3ft (0.9m) 6s |
| Best Surf | 5AM (Sun 13th Sep) | 3ft (0.9m) 6s |
| Most Powerful | 11PM (Sat 12th Sep) | 3.5ft (1.1m) 5s |
Table - best surf conditions forecast for Diamond Beach over the next 16 days.
The Lowdown
Alright, this is Rusty, and I’ve gotta be straight with you – it’s a tough stretch ahead for this region. We’re looking at a solid 16-day window, but honestly, the surf just isn't showing up in any meaningful way for a paddle surfer.
Right out of the gate on Thursday the 10th, we’ve got tiny, weak swell at Diamond Beach with a combined energy of just (20). The water temp is sitting at 77°, which is a whopping 6° warmer than average for this time of year – that’s very unusual, feels more like a bathtub than the ocean. But don’t get excited, because the wind is a messy cross-shore, and the period is short at 6 seconds. It’s barely a ripple.
The next couple of weeks are pretty much the same story. We’ve got a long, drawn-out gap with nothing worth mentioning. The swell stays small, often under 3 ft, with most days churning out poor surf conditions. The wind is all over the place – onshore, cross-onshore, strong breezes – and it’s constantly chopping up that tiny bit of energy. You’ll see a few moments of clean conditions with a light offshore on Sunday the 13th and Monday the 14th, but the swell is just too weak at 1.0 ft to get excited about.
As we move into the second week, things actually get a bit bigger, but not better. Around Monday the 21st, we start seeing some moderate wave energy, with values hitting (219) on the 21st afternoon and (311) on Tuesday the 22nd morning, with swell pushing 5 ft to 5 ft. The period is still short though, and the wind is a fresh or strong onshore mess. That combination is going to leave us with lumpy, choppy, blown-out conditions. It’s the kind of day where the beach setup looks more interesting for a kite surfer than for someone with a longboard.
Even on the last day, Friday the 25th, when we finally get a fresh offshore wind, the swell has already backed off to a tiny 2 ft. It’s clean, but tiny.
There’s no standout session here, no hidden gem. With the break being inconsistent and the forecast showing nothing but zero scores across the board, this is one of those blank runs more normal for the area. Don't hang your hopes on it, but forecasts can always shift.
Stay patient.
Rusty.
Short Range ForecastLight rain (total 9mm), mostly falling on Sat night. Warm (max 29°C on Thu afternoon, min 22°C on Sun morning). Wind will be generally light. | Days 5-7 Weather SummaryMostly dry. Warm (max 27°C on Sun afternoon, min 21°C on Tue night). Wind will be generally light. | |||||||||||||||||||
Thu 10 | Friday 11 | Saturday 12 | Sunday 13 | Monday 14 | Tuesday 15 | Wednesday 16 | ||||||||||||||
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 | SE 10 | ENE 4 | E 4 | SE 9 | SE 4 | SE 5 | SE 6 | ESE 6 | SE 10 | SE 9 | SE 9 | SE 9 | SE 9 | SE 9 | ESE 6 | E 6 | ESE 5 | S 4 | ESE 8 |
Wave Graph  | ||||||||||||||||||||
 kJ | 15 | 14 | 16 | 13 | 12 | 15 | 35 | 67 | 21 | 14 | 22 | 13 | 13 | 20 | 39 | 35 | 17 | 9 | 19 | 21 |
Wind (km/h) | ||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | cross | off | cross | cross-on | cross-on | on | on | cross | cross-off | cross | cross-off | cross-off | cross-off | cross-on | on | on | cross-on | cross-on | cross-on | cross-on |
High Tide | 8:34PM1.70m | 9:05AM1.66m | 9:19PM1.66m | 9:48AM1.68m | 10:02PM1.59m | 10:31AM1.66m | 10:45PM1.49m | 11:15AM1.60m | 11:30PM1.39m | 11:59AM1.53m | 00:18AM1.28m | 12:45PM1.46m | 1:07AM1.19m | |||||||
Low Tide | 2:06PM-0.06m | 2:39AM-0.14m | 2:56PM-0.07m | 3:22AM-0.13m | 3:42PM-0.05m | 4:02AM-0.08m | 4:26PM-0.01m | 4:39AM-0.01m | 5:08PM0.07m | 5:16AM0.09m | 5:51PM0.16m | 5:52AM0.20m | 6:36PM0.25m | |||||||
 |  |  | | | | |  |  |  |  | | | | | | | | |  | |
 | — | — | 6:35 | — | — | 6:37 | — | — | 6:37 | — | — | 6:39 | — | — | 6:39 | — | — | 6:41 | — | — |
 | 7:15 | — | — | 7:14 | — | — | 7:13 | — | — | 7:10 | — | — | 7:09 | — | — | 7:07 | — | — | 7:06 | — |
mm | — | — | — | — | — | — | — | 6 | 3 | — | — | — | — | — | — | — | — | — | — | 1 |
Temp °C | 29 | 29 | 24 | 24 | 24 | 24 | 24 | 26 | 23 | 27 | 27 | 24 | 25 | 24 | 22 | 22 | 21 | 21 | 22 | 23 |
Feels °C | 31 | 32 | 23 | 23 | 25 | 23 | 23 | 26 | 26 | 29 | 28 | 23 | 23 | 23 | 21 | 20 | 18 | 19 | 19 | 21 |
Swell 1 Height (m) Direction Period (s) | S 6 | SSE 5 | SSE 6 | SSE 6 | E 5 | S 5 | E 8 | SE 10 | ESE 6 | ESE 6 | SE 9 | SE 9 | SE 9 | SE 9 | ENE 5 | SE 10 | E 6 | ESE 5 | E 6 | ESE 8 |
| kJ | 15 | 9 | 13 | 7 | 7 | 2 | 1 | 15 | 21 | 12 | 22 | 13 | 13 | 20 | 2 | 4 | 17 | 9 | 6 | 21 |
Swell 2 Height (m) Direction Period (s) | SE 9 | SE 10 | SE 9 | ESE 9 | SE 9 | — | — | E 7 | SE 10 | SE 10 | ESE 5 | ESE 5 | S 5 | S 5 | E 15 | — | SE 9 | ESE 7 | ESE 8 | SE 13 |
| kJ | 3 | 14 | 12 | 7 | 12 | — | — | 1 | 15 | 14 | 5 | 2 | 2 | 1 | 4 | — | 3 | 5 | 6 | 7 |
Swell 3 Height (m) Direction Period (s) | SE 7 | SE 10 | — | E 8 | SE 11 | — | — | — | — | — | SSE 5 | S 6 | ESE 5 | — | SE 15 | S 5 | SE 14 | SE 9 | SE 13 | SE 9 |
| kJ | 2 | 4 | — | 1 | 5 | — | — | — | — | — | 3 | 3 | 2 | — | 8 | 1 | 8 | 3 | 7 | 3 |
Wind waves Height (m) Direction Period (s) | W 3 | — | ENE 4 | E 4 | SSE 5 | SE 4 | SE 5 | SE 6 | NNW 3 | — | — | NNW 3 | NE 4 | ENE 4 | SE 9 | ESE 6 | SSE 3 | S 3 | S 4 | S 4 |
| kJ | 1 | — | 16 | 13 | 5 | 15 | 35 | 67 | 1 | — | — | 2 | 1 | 6 | 39 | 35 | 3 | 3 | 19 | 16 |
Nearest Offshore or Glassy | ||||||||||||||||||||
Distance (km) | 29 | 65 | 98 | 32 | 323 | 1135 | 1172 | 7 | 20 | 20 | 28 | 210 | 131 | 597 | 1001 | 2394 | 502 | 502 | 502 | 260 |
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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