Surf Forecasts:
Diamond Beach surf forecast from 1 Sep 2026:
- Most powerful swell: Wednesday 2 Sep, 11AM (local time) - 2ft (0.6m), 11s period, SE swell with 73 kJ wave energy.
Best Forecast Surf Conditions for Diamond Beach this week:
The most powerful waves expected at Diamond Beach in the next 16 days are 0.6m 11s and forecast to arrive on Wednesday (Sep 02) at 11AM. Winds are predicted to be cross-shore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 0.6m 4s period and expected on Tuesday (Sep 08) at 8AM.
| Wave Type | Time (EDT) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | - | - |
| Best Surf | - | - |
| Most Powerful | 11AM (Wed 2nd Sep) | 2ft (0.6m) 11s |
Table - best surf conditions forecast for Diamond Beach over the next 16 days.
The Lowdown
Alright, mates, Rusty here again, and I’m not gonna sugarcoat it – if you’re hoping for a wave at Diamond Beach over the next 16 days, you’re out of luck. The whole stretch is flat and windblown. No real swell, no good windows, just a long, disappointing run.
Starting Tuesday, September 1st, we’ve got a pathetic 0.3m of SE swell with a 7-second period. The combined wave energy is a measly 8, and with a light cross breeze, it’s unrideable. The water’s 25°, which is way warmer than normal for this time of year – about 2° above average – but that’s the only interesting thing going on.
The first week is a total loss. Through Saturday, September 5th, the swell never gets past 0.6m, and the wind is either onshore or cross-shore most of the time. Friday, September 4th, gives us some clean offshore wind from the NW, but the swell is only 0.3m to 0.4m – not enough to do anything with.
There’s a big gap of nearly two weeks with zero surfable waves. Finally, on Wednesday, September 16th, we see a bump to 1.3m to 1.5m from the south. The period is short, 5 to 6 seconds, so it’s weak and crumbly. The combined energy gets up to 153 in the afternoon – moderate – and the wind turns clean offshore from the NW. But the overall quality is still just ordinary, not good. That 1.5m might be a bit much for beginners, but it’s not gonna be a classic wave.
Diamond Beach is an inconsistent, beginner-friendly spot, and a long flat spell like this is pretty normal for the area. Nothing to get excited about. Forecasts can always change, but for now, leave the board at home.
Rusty
Short Range ForecastModerate rain (total 14mm), heaviest on Wed night. Warm (max 30°C on Tue night, min 22°C on Wed morning). Wind will be generally light. | Days 4-6 Weather SummaryLight rain (total 3mm), mostly falling on Fri night. Warm (max 30°C on Fri afternoon, min 20°C on Sat night). Wind will be generally light. | ||||||||||||||||||||
Tuesday 1 | Wednesday 2 | Thursday 3 | Friday 4 | Saturday 5 | Sunday 6 | Monday 7 | |||||||||||||||
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 7 | SE 7 | SE 12 | SE 11 | SE 10 | SE 9 | SE 9 | SE 9 | SE 8 | SSE 6 | SE 8 | S 4 | ESE 8 | S 6 | SE 9 | SE 9 | ENE 5 | E 8 | E 8 | S 4 | SSW 5 |
Wave Graph  | |||||||||||||||||||||
 kJ | 7 | 11 | 52 | 73 | 61 | 43 | 29 | 27 | 11 | 12 | 10 | 6 | 6 | 6 | 3 | 3 | 3 | 5 | 5 | 12 | 38 |
Wind (km/h) | |||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | cross | cross-on | cross-on | cross | cross | cross | cross-on | cross-on | cross-off | off | off | cross-off | cross-off | cross | cross-off | cross | cross-on | cross-on | on | on | cross-on |
High Tide | 11:40AM1.57m | 00:06AM1.37m | 12:30PM1.56m | 1:03AM1.30m | 1:27PM1.54m | 2:05AM1.24m | 2:29PM1.52m | 3:11AM1.21m | 3:36PM1.52m | 4:21AM1.23m | 4:46PM1.54m | 5:31AM1.29m | 5:54PM1.58m | ||||||||
Low Tide | 5:48PM0.12m | 5:48AM0.06m | 6:40PM0.18m | 6:35AM0.13m | 7:46PM0.24m | 7:37AM0.20m | 9:04PM0.25m | 8:57AM0.23m | 10:17PM0.20m | 10:14AM0.20m | 11:20PM0.12m | 11:20AM0.13m | 00:15AM0.03m | ||||||||
 | |  |  | |  |  | | | | | | | | | | | | | | | |
 | 6:26 | — | — | 6:28 | — | — | 6:28 | — | — | 6:30 | — | — | 6:31 | — | — | 6:31 | — | — | 6:33 | — | — |
 | — | 7:30 | — | — | 7:28 | — | — | 7:27 | — | — | 7:24 | — | — | 7:23 | — | — | 7:22 | — | — | 7:21 | — |
mm | — | — | — | — | — | 4 | 3 | — | 7 | — | — | 3 | — | — | — | — | — | — | — | — | — |
Temp °C | 26 | 29 | 30 | 23 | 24 | 23 | 23 | 28 | 29 | 25 | 30 | 29 | 23 | 25 | 25 | 22 | 22 | 21 | 22 | 22 | 23 |
Feels °C | 29 | 31 | 30 | 23 | 25 | 25 | 25 | 31 | 32 | 28 | 31 | 31 | 23 | 26 | 26 | 19 | 19 | 19 | 21 | 21 | 22 |
Swell 1 Height (m) Direction Period (s) | SE 7 | SE 7 | S 4 | SE 11 | SE 10 | E 6 | E 6 | SE 9 | S 4 | SSE 6 | S 6 | S 4 | NE 3 | S 6 | SE 9 | SE 9 | ENE 5 | SE 9 | SE 9 | SE 8 | SE 8 |
| kJ | 7 | 11 | 9 | 73 | 61 | 17 | 18 | 27 | 8 | 12 | 6 | 5 | 2 | 6 | 3 | 3 | 2 | 3 | 3 | 3 | 3 |
Swell 2 Height (m) Direction Period (s) | — | SE 8 | SE 12 | S 5 | S 5 | SE 9 | SE 9 | ENE 6 | SE 8 | SE 8 | SE 8 | ESE 8 | ESE 8 | ENE 4 | S 5 | — | SE 9 | E 8 | E 8 | E 8 | E 8 |
| kJ | — | 11 | 52 | 4 | 4 | 43 | 29 | 12 | 11 | 11 | 10 | 6 | 6 | 2 | 1 | — | 3 | 5 | 5 | 1 | 1 |
Swell 3 Height (m) Direction Period (s) | — | SE 13 | — | — | — | S 4 | S 4 | S 5 | E 6 | E 5 | — | E 6 | S 6 | ESE 8 | E 8 | E 7 | E 7 | NE 5 | E 8 | — | — |
| kJ | — | 7 | — | — | — | 1 | 1 | 2 | 2 | 2 | — | 3 | 3 | 6 | 1 | 1 | 1 | 1 | 1 | — | — |
Wind waves Height (m) Direction Period (s) | SSW 2 | SSE 3 | SSW 4 | ENE 2 | ENE 4 | — | — | — | W 3 | WNW 3 | — | — | NNW 3 | NW 3 | N 3 | NNW 2 | S 5 | SW 3 | WSW 3 | S 4 | SSW 5 |
| kJ | 1 | 7 | 19 | 1 | 10 | — | — | — | 3 | 1 | — | — | 2 | 2 | 5 | 1 | 2 | 2 | 1 | 12 | 38 |
Nearest Offshore or Glassy | |||||||||||||||||||||
Distance (km) | 376 | 1508 | 50 | 247 | 1508 | 23 | 127 | 42 | 64 | 85 | 1001 | 289 | 553 | 1014 | 558 | 1058 | 1014 | 498 | 528 | 1172 | 502 |
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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