
Surf Forecasts:
Diamond Beach surf forecast from 12 Jul 2026:
- Best quality surf: Sunday 19 Jul, 8AM (local time) - 4ft (1.2m), 5s period, ENE swell with cross-offshore winds.
- Most powerful swell: Monday 13 Jul, 8AM (local time) - 3.5ft (1.0m), 6s period, ESE swell with 80 kJ wave energy.
- Next surfable swell (1★+): Sunday 19 Jul, 8AM (local time) - 4ft (1.2m), 5s period with ENE 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 (Jul 19) at 8AM. The primary swell is predicted to be 1.2m and 5s period with a secondary swell of 0.4m and 6s. Another secondary swell of 0.1m and 8s 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 1.0m 6s and forecast to arrive on Monday (Jul 13) at 8AM. Winds are predicted to be cross-onshore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 0.8m 4s period and expected on Wednesday (Jul 15) at 5AM.
| Wave Type | Time (EDT) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | 8AM (Sun 19th Jul) | 4ft (1.2m) 5s |
| Best Surf | 8AM (Sun 19th Jul) | 4ft (1.2m) 5s |
| Most Powerful | 8AM (Mon 13th Jul) | 3.5ft (1.0m) 6s |
Table - best surf conditions forecast for Diamond Beach over the next 16 days.
Howdy, Rusty here. Let’s break down the next couple of weeks. We’re staring down a long, quiet period. The first chance of anything worth paddling for doesn’t show up until the weekend of July 19th, so we’re looking at a solid week of flat or near-flat, messy conditions before that.
For the first week, from Sunday the 12th through Saturday the 18th, the swell is tiny and the wind is mostly junk. We’re talking knee-high dribble or less, with a lot of choppy, cross-onshore slop. The water temp is sitting right around 73°F, which is bang on average for this time of year – nothing weird there. It’s just one of those bleak summer runs where you’re better off waxing your board and waiting.
The first glimmer of hope pops up on Sunday the 19th. We see a bit of a pulse from the ENE, pushing around 5ft, but it’s coming from a short period of 6 seconds. That’s weak, windswell energy. The combined energy is moderate, at 159. The wind is light and offshore from the West, which is a big positive. That means the surface will be clean. For a beginner spot like Diamond Beach, this is marginal – the swell is under 5ft, so it’s not too big, but the quality is pretty ordinary. It’s a surfable wave, but it’s not going to be a standout.
Monday the 20th has a little more energy in the water, with combined energy hitting 212 (moderate), and the swell from the ENE again at 4ft. The period is a bit better at 8 seconds. The morning looks clean with a light offshore from the NNW. This is probably the best of a very average bunch. The waves will be small, clean, and maybe a little more fun than the day before, but don’t expect any barrels.
After that, it drops off again. The 21st through the 27th is a real snoozer. Swell stays under 3ft, the wind is mostly onshore or cross, and the energy is weak. The only thing worth noting is a tiny window on the morning of the 25th and 26th, where we get a little knee-high SSE swell with clean conditions. It’s barely surfable, but if you’re desperate, you could get a few grovelly turns on a longboard.
The end of the period, on the 27th, finally shows a moment of glassy conditions with light rain and a wind from the North. The swell is still tiny at 2ft, and the energy is weak (28). It’s not really a call to action, but it’s a sign that things might be turning.
To sum it up: the standout is the morning of Monday the 20th at Diamond Beach. The swell is 4ft from the ENE, the wind is offshore, and the surface will be clean. It’s small, the wave quality is only marginal, and it’s an inconsistent spot, so you’ll be waiting for sets. But in a 16-day window that’s mostly a write-off, that’s your best bet. For the rest, leave the board in the car.
Rusty.
Short Range ForecastMostly dry. Warm (max 26°C on Tue afternoon, min 22°C on Mon night). Wind will be generally light. | Days 4-6 Weather SummaryLight rain (total 2mm), mostly falling on Thu afternoon. Warm (max 34°C on Wed afternoon, min 23°C on Wed morning). Wind will be generally light. | ||||||||||||||||||||
Sunday 12 | Monday 13 | Tuesday 14 | Wednesday 15 | Thursday 16 | Friday 17 | Saturday 18 | |||||||||||||||
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) | E 5 | E 5 | ESE 6 | SE 6 | ESE 7 | ESE 7 | SE 9 | ESE 8 | ESE 8 | SE 8 | SE 8 | S 5 | S 5 | ESE 8 | S 4 | ESE 8 | ESE 8 | E 14 | SE 8 | ENE 4 | NE 5 |
Wave Graph | |||||||||||||||||||||
42 | 34 | 49 | 42 | 41 | 20 | 12 | 23 | 23 | 15 | 16 | 16 | 7 | 6 | 6 | 6 | 6 | 4 | 24 | 13 | 47 | |
Wind (km/h) | |||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | cross-on | cross-on | on | cross-on | on | cross-on | cross-off | cross-on | cross-off | cross-off | cross | cross-off | on | cross | cross-off | off | cross-off | glassy | cross-on | cross-on | cross-off |
High Tide | 7:19PM1.76m | 7:58AM1.40m | 8:15PM1.81m | 8:53AM1.46m | 9:08PM1.83m | 9:47AM1.51m | 10:01PM1.80m | 10:40AM1.53m | 10:52PM1.73m | 11:34AM1.53m | 11:45PM1.63m | 12:28PM1.52m | 00:36AM1.52m | ||||||||
Low Tide | 12:38PM-0.00m | 1:42AM-0.09m | 1:37PM-0.05m | 2:37AM-0.16m | 2:35PM-0.08m | 3:29AM-0.20m | 3:31PM-0.09m | 4:18AM-0.21m | 4:23PM-0.07m | 5:04AM-0.19m | 5:13PM-0.01m | 5:49AM-0.12m | 6:04PM0.07m | ||||||||
5:43 | — | — | 5:43 | — | — | 5:45 | — | — | 5:45 | — | — | 5:46 | — | — | 5:47 | — | — | 5:48 | — | — | |
— | 8:24 | — | — | 8:24 | — | — | 8:23 | — | — | 8:23 | — | — | 8:22 | — | — | 8:22 | — | — | 8:22 | — | |
mm | — | — | — | — | — | — | — | — | — | — | — | — | — | 1 | 1 | — | — | — | 2 | 5 | 8 |
Temp °C | 24 | 24 | 23 | 23 | 23 | 23 | 24 | 26 | 26 | 27 | 34 | 34 | 27 | 28 | 28 | 27 | 30 | 28 | 24 | 25 | 23 |
Feels °C | 22 | 21 | 21 | 22 | 22 | 23 | 23 | 23 | 23 | 25 | 34 | 35 | 27 | 28 | 30 | 24 | 27 | 27 | 26 | 27 | 24 |
Swell 1 Height (m) Direction Period (s) | SSE 6 | S 6 | SE 10 | SE 6 | ESE 7 | ESE 7 | ESE 7 | ESE 8 | ESE 8 | SE 8 | SE 8 | S 5 | S 5 | ESE 8 | S 4 | S 4 | S 5 | S 5 | — | SSE 4 | SSE 5 |
4 | 3 | 4 | 42 | 41 | 20 | 9 | 23 | 23 | 15 | 16 | 16 | 7 | 6 | 5 | 1 | 5 | 2 | — | 3 | 5 | |
Swell 2 Height (m) Direction Period (s) | SE 10 | SE 10 | S 6 | S 6 | — | SSE 5 | SE 9 | SE 9 | SE 9 | ESE 9 | E 17 | SE 8 | ESE 8 | — | ESE 8 | ESE 8 | ESE 8 | SE 8 | SE 14 | SE 8 | SE 8 |
4 | 4 | 3 | 1 | — | 3 | 12 | 3 | 13 | 8 | 5 | 10 | 6 | — | 6 | 6 | 6 | 3 | 7 | 3 | 3 | |
Swell 3 Height (m) Direction Period (s) | — | — | — | — | — | SE 9 | SSE 5 | E 8 | E 7 | E 8 | E 7 | — | — | E 15 | — | — | — | E 14 | — | SE 13 | SE 13 |
— | — | — | — | — | 3 | 3 | 1 | 1 | 1 | 1 | — | — | 5 | — | — | — | 4 | — | 7 | 7 | |
Wind waves Height (m) Direction Period (s) | E 5 | E 5 | ESE 6 | — | — | — | — | S 2 | SW 4 | SW 4 | SSW 4 | WSW 3 | — | S 3 | W 3 | — | — | SSW 2 | SE 8 | ENE 4 | NE 5 |
42 | 34 | 49 | — | — | — | — | 1 | 17 | 11 | 10 | 4 | — | 4 | 2 | — | — | 1 | 24 | 13 | 47 | |
Nearest Offshore or Glassy | |||||||||||||||||||||
Distance (km) | 419 | 1135 | 502 | 1137 | 1145 | 50 | 65 | 158 | 247 | 123 | 392 | 65 | 347 | 2664 | 289 | 1398 | 2613 | 1001 | 1009 | 737 | 23 |
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.










