Surf Forecasts:
Diamond Beach surf forecast from 13 Jul 2026:
- Best quality surf: Monday 20 Jul, 5AM (local time) - 3ft (0.9m), 8s period, SSE swell with cross-offshore winds.
- Most powerful swell: Monday 20 Jul, 8AM (local time) - 3.5ft (1.0m), 8s period, SSE swell with 137 kJ wave energy.
- Next surfable swell (1★+): Monday 20 Jul, 5AM (local time) - 3ft (0.9m), 8s period with SSE 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 Monday (Jul 20) at 5AM. The primary swell is predicted to be 0.9m and 8s period with a secondary swell of 0.5m and 4s. 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 8s and forecast to arrive on Monday (Jul 20) at 8AM. Winds are predicted to be cross-offshore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 0.8m 4s period and expected on Wednesday (Jul 15) at 5AM.
| Wave Type | Time (EDT) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | 5AM (Mon 20th Jul) | 3ft (0.9m) 8s |
| Best Surf | 5AM (Mon 20th Jul) | 3ft (0.9m) 8s |
| Most Powerful | 8AM (Mon 20th Jul) | 3.5ft (1.0m) 8s |
Table - best surf conditions forecast for Diamond Beach over the next 16 days.
G’day, Rusty here. Look, I’ve gotta be straight with you – this 16-day window for Diamond Beach is a tough one. There’s just not much on offer at all. The whole run is a flat spell with only a couple of tiny blips, and even those are barely worth a mention. The first real sniff of anything surfable doesn’t show up until Monday the 20th of July, and even then it’s pretty ordinary.
From now through to the end of the first week, it’s a complete write-off. The swell is tiny, wind is mostly wrong, and the wave comment is “poor surf conditions” for every single session. The combined swell energy is weak, sitting in the double digits (39) or less. You’re looking at 1.0ft to 2ft of short-period, choppy slop that’s just not worth paddling for. The water temp is sitting at 74°, which is about average for this time of year, so at least you won’t be cold, but there’s nothing to ride.
The only day that even gets a score above zero is Monday the 20th of July, with a morning session that’s rated as “surfable waves but very ordinary conditions.” The swell lifts to 3ft from the SSE, with a period of 8 seconds, and the combined energy climbs to a moderate 102. The wind is NNE at 3 mph, which is a light cross-off shore, so it’ll be clean. For a beginner spot, this is the best you’ll get, but it’s weak and inconsistent. It’s a long way from a standout.
After that, it’s back to the same story – tiny swell, mostly onshore or cross-onshore winds, and poor conditions right through to the end of the 16 days. The combined energy drops back to weak levels (67 and below). There’s a brief moment on Saturday the 25th of July where the afternoon goes glassy with a SSW breeze at 3 mph, but the swell is a pathetic 1.0ft. It’s a flat calm, not a surf session.
Honestly, for the whole 16 days, there’s no true standout. The best option is the morning of Monday the 20th of July, and even that’s just a “meh” day. If you’re a beginner, that’s your only window, but don’t expect much. The rest of the time, it’s a dry spell. That’s the reality of it.
Rusty.
Short Range ForecastMostly dry. Warm (max 35°C on Wed afternoon, min 21°C on Tue morning). Wind will be generally light. | Days 4-6 Weather SummaryHeavy rain (total 49mm), heaviest during Sat night. Warm (max 31°C on Thu afternoon, min 22°C on Fri morning). Winds increasing (calm on Fri afternoon, fresh winds from the SSW by Sat night). | ||||||||||||||||||||
Monday 13 | Tuesday 14 | Wednesday 15 | Thursday 16 | Friday 17 | Saturday 18 | Sunday 19 | |||||||||||||||
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) | ESE 6 | ESE 6 | SE 9 | SE 9 | S 4 | SSW 4 | SE 9 | ESE 9 | SSW 4 | S 5 | S 5 | S 5 | S 4 | E 8 | S 5 | SE 14 | S 4 | S 5 | S 6 | S 5 | SE 5 |
Wave Graph  | |||||||||||||||||||||
 kJ | 35 | 22 | 13 | 13 | 13 | 28 | 12 | 8 | 24 | 9 | 4 | 3 | 3 | 21 | 3 | 7 | 13 | 97 | 22 | 45 | 59 |
Wind (km/h) | |||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | on | on | cross | cross | cross-on | cross-off | cross-off | cross-off | cross-off | cross-off | cross-on | off | cross-off | cross-on | cross | cross-on | cross-on | cross-off | cross-off | off | cross-off |
High Tide | 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 | 1:19PM1.50m | 1:27AM1.40m | ||||||||
Low Tide | 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 | 6:34AM-0.04m | 6:56PM0.17m | ||||||||
 | |  | | | | | | | | |  | | | | |  | |  | | | |
 | 5:43 | — | — | 5:45 | — | — | 5:45 | — | — | 5:46 | — | — | 5:47 | — | — | 5:48 | — | — | 5:48 | — | — |
 | — | 8:24 | — | — | 8:23 | — | — | 8:23 | — | — | 8:22 | — | — | 8:22 | — | — | 8:22 | — | — | 8:22 | — |
mm | — | — | — | — | — | — | — | — | — | — | — | 8 | — | — | — | — | — | 41 | — | — | — |
Temp °C | 23 | 23 | 23 | 23 | 26 | 26 | 28 | 35 | 34 | 29 | 31 | 26 | 24 | 26 | 27 | 26 | 27 | 25 | 25 | 27 | 26 |
Feels °C | 22 | 22 | 22 | 22 | 24 | 24 | 28 | 36 | 34 | 31 | 33 | 27 | 23 | 26 | 26 | 26 | 25 | 24 | 24 | 25 | 25 |
Swell 1 Height (m) Direction Period (s) | ESE 6 | ESE 6 | ESE 6 | ESE 5 | SE 9 | SE 9 | SE 9 | ESE 9 | ESE 8 | S 5 | S 5 | S 5 | S 4 | S 5 | ENE 4 | SE 8 | — | SE 13 | S 6 | SE 13 | E 5 |
| kJ | 35 | 22 | 12 | 6 | 13 | 13 | 12 | 8 | 7 | 9 | 4 | 2 | 1 | 2 | 1 | 3 | — | 7 | 22 | 7 | 21 |
Swell 2 Height (m) Direction Period (s) | SE 9 | SE 9 | ESE 9 | SSE 5 | E 5 | E 8 | — | E 17 | — | ESE 8 | SE 8 | SE 8 | SE 8 | — | S 5 | — | SE 13 | E 8 | SE 13 | — | SE 12 |
| kJ | 3 | 3 | 7 | 2 | 2 | 1 | — | 5 | — | 6 | 2 | 3 | 3 | — | 2 | — | 7 | 1 | 7 | — | 6 |
Swell 3 Height (m) Direction Period (s) | S 6 | — | SE 9 | SE 9 | E 8 | E 7 | — | — | — | — | — | — | — | SE 14 | SE 8 | SE 14 | — | — | E 9 | — | — |
| kJ | 1 | — | 13 | 13 | 1 | 1 | — | — | — | — | — | — | — | 8 | 3 | 7 | — | — | 1 | — | — |
Wind waves Height (m) Direction Period (s) | — | — | SSE 5 | — | S 4 | SSW 4 | SW 4 | SSW 3 | SSW 4 | — | — | — | N 3 | E 8 | SSE 3 | S 4 | S 4 | S 5 | W 3 | S 5 | SE 5 |
| kJ | — | — | 5 | — | 12 | 28 | 10 | 5 | 24 | — | — | — | 1 | 21 | 1 | 2 | 13 | 97 | 1 | 45 | 59 |
Nearest Offshore or Glassy | |||||||||||||||||||||
Distance (km) | 1137 | 1166 | 85 | 502 | 1166 | 299 | 273 | 318 | 29 | 347 | 98 | 671 | 1001 | 2487 | 1001 | 2312 | 2613 | 7 | 64 | 10 | 5 |
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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