Surf Forecasts:
Diamond Beach surf forecast from 1 Sep 2026:
- Best quality surf: Thursday 3 Sep, 2AM (local time) - 1.5ft (0.4m), 9s period, SE swell with cross-offshore winds.
- Most powerful swell: Wednesday 2 Sep, 11AM (local time) - 2ft (0.6m), 11s period, SE swell with 73 kJ wave energy.
- Next surfable swell (1★+): Thursday 3 Sep, 2AM (local time) - 1.5ft (0.4m), 9s 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 Thursday (Sep 03) at 2AM. The primary swell is predicted to be 0.4m and 9s period with a secondary swell of 0.6m and 6s. 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 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 0.3m 3s period and expected on Friday (Sep 04) at 2AM.
| Wave Type | Time (EDT) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | 2AM (Thu 3rd Sep) | 1.5ft (0.4m) 9s |
| Best Surf | 2AM (Thu 3rd Sep) | 1.5ft (0.4m) 9s |
| 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
Righto, surfers, Rusty here. Let’s be straight with you: looking at this 16-day stretch for Diamond Beach, we’ve got a whole lot of waiting ahead. It’s one of those runs where the ocean just doesn’t want to cooperate, and the first real chance of anything worth paddling out for doesn’t show its face until we’re deep into the second week.
For the first twelve days or so, from August 31st right through to September 11th, it’s pretty much a write-off. We’re talking tiny scraps of swell, mostly under 2ft, with periods all over the shop – some of it short and weak, other bits with a bit more push but no size behind it. The energy readings are almost all pitiful, mostly under the 100 mark, which tells you there’s just nothing out there. You’ll see mornings with clean conditions and a light offshore, but it’s on a wave that’s barely a ripple. It’s the kind of surf that’ll have you questioning why you bothered lugging your board down. And look, there are a few afternoons with a bit more size, like the 3ft on the 6th and the 9th, but they come with onshore winds or a junky cross-shore chop that makes it messy and almost unsurfable. You’re better off finding something else to do.
Now, the first day that even gets a nod as "surfable" is Sunday, September 13th. And even then, it’s not a celebration. The morning pushes chest-high at 4ft from the south with a 6-second period. That short period means it’s going to be a bit lumpy and disorganised, not much power behind it. But the kicker is the afternoon – the wind drops right out to glassy. If you’re desperate, that Sunday afternoon window is your best bet of the whole run, but keep your expectations on the floor. It’s surfable, but it’s very ordinary.
After that little tease, the surf just dies again. Monday the 14th drops back down to under 2ft, and Tuesday the 15th is just small, junky windswell with a cross-shore breeze chopping it up. There’s nothing else on the cards.
So, here’s the long and short of it: this forecast is a poor run for Diamond Beach. This spot can be inconsistent, and this looks like one of those blank stretches that just happens. The only real standout, if you can even call it that, is the glassy, 4ft south swell on the afternoon of Sunday the 13th. It’s not going to be a classic, but it’s the only time you won’t be getting skunked.
It’s a tough outlook, but that’s the ocean for you. Forecasts can change, so keep an eye out, but don't hold your breath for this stretch.
Rusty.
Short Range ForecastLight rain (total 6mm), mostly falling on Tue night. Warm (max 31°C on Tue night, min 23°C on Wed morning). Wind will be generally light. | Days 5-7 Weather SummaryHeavy rain (total 30mm), heaviest during Thu night. Warm (max 31°C on Fri afternoon, min 21°C on Sat morning). Winds decreasing (fresh winds from the WNW on Thu night, light winds from the N by Fri night). | |||||||||||||||||||
Mon 31 | Tuesday 1 | Wednesday 2 | Thursday 3 | Friday 4 | Saturday 5 | Sunday 6 | ||||||||||||||
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 7 | SE 7 | SE 7 | SE 12 | SE 11 | SE 10 | SE 9 | SE 9 | SE 9 | SE 8 | SSE 6 | SE 8 | ESE 8 | ESE 8 | ENE 6 | E 6 | ENE 3 | ENE 5 | E 5 |
Wave Graph | ||||||||||||||||||||
9 | 8 | 7 | 7 | 52 | 73 | 61 | 31 | 29 | 27 | 11 | 11 | 10 | 6 | 6 | 7 | 3 | 3 | 38 | 13 | |
Wind (km/h) | ||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | on | cross | cross-off | cross-on | off | cross | cross | cross-off | cross-off | cross-on | cross | cross-off | off | cross-off | cross-off | cross-on | on | cross | on | cross |
High Tide | 11:17PM1.44m | 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 | ||||||||
Low Tide | 5:04PM0.08m | 5:09AM0.01m | 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 | |||||||
— | — | 6:26 | — | — | 6:28 | — | — | 6:28 | — | — | 6:30 | — | — | 6:31 | — | — | 6:31 | — | — | |
7:31 | — | — | 7:30 | — | — | 7:28 | — | — | 7:27 | — | — | 7:24 | — | — | 7:23 | — | — | 7:22 | — | |
mm | — | — | — | — | 3 | 1 | — | — | 2 | — | 18 | 2 | — | 8 | — | — | — | 2 | — | — |
Temp °C | 24 | 26 | 26 | 30 | 31 | 23 | 24 | 23 | 24 | 28 | 27 | 26 | 31 | 30 | 23 | 25 | 23 | 22 | 22 | 21 |
Feels °C | 25 | 27 | 28 | 33 | 31 | 24 | 26 | 24 | 29 | 31 | 28 | 28 | 32 | 33 | 21 | 24 | 22 | 21 | 20 | 20 |
Swell 1 Height (m) Direction Period (s) | SE 8 | SE 7 | SSW 4 | SE 7 | S 4 | SE 11 | SE 10 | E 6 | E 6 | E 6 | S 4 | SSE 6 | S 6 | ESE 8 | ESE 8 | ENE 6 | E 6 | SE 9 | SE 9 | E 5 |
9 | 8 | 2 | 7 | 6 | 73 | 61 | 29 | 19 | 11 | 8 | 10 | 6 | 6 | 6 | 7 | 3 | 3 | 3 | 13 | |
Swell 2 Height (m) Direction Period (s) | — | — | SE 7 | SE 8 | SE 12 | S 5 | S 5 | SE 9 | SE 9 | SE 9 | SE 8 | E 7 | E 7 | E 6 | E 6 | ESE 8 | SE 8 | — | S 6 | SE 9 |
— | — | 7 | 3 | 52 | 4 | 5 | 31 | 29 | 27 | 11 | 8 | 8 | 3 | 3 | 6 | 2 | — | 1 | 3 | |
Swell 3 Height (m) Direction Period (s) | — | — | — | SE 13 | — | — | — | S 4 | — | S 4 | E 6 | SE 8 | SE 8 | S 5 | — | S 6 | S 5 | S 6 | — | E 9 |
— | — | — | 7 | — | — | — | 2 | — | 2 | 6 | 11 | 10 | 2 | — | 1 | 1 | 1 | — | 6 | |
Wind waves Height (m) Direction Period (s) | E 3 | SSE 3 | W 3 | SSW 4 | — | ENE 4 | ENE 6 | — | — | — | W 3 | — | — | — | NE 3 | — | SE 3 | ENE 3 | ENE 5 | — |
1 | 1 | 1 | 3 | — | 12 | 29 | — | — | — | 1 | — | — | — | 1 | — | 2 | 3 | 38 | — | |
Nearest Offshore or Glassy | ||||||||||||||||||||
Distance (km) | 1172 | 376 | 376 | 85 | 2 | 249 | 5 | 0 | 2 | 50 | 119 | 85 | 85 | 289 | 2194 | 2462 | 513 | 1398 | 597 | 497 |
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.











