Surf Forecasts:
Diamond Beach surf forecast from 12 Jul 2026:
- Most powerful swell: Monday 13 Jul, 5AM (local time) - 3.5ft (1.0m), 7s period, ESE swell with 85 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 1.0m 7s and forecast to arrive on Monday (Jul 13) at 5AM. 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 2AM.
| Wave Type | Time (EDT) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | - | - |
| Best Surf | - | - |
| Most Powerful | 5AM (Mon 13th Jul) | 3.5ft (1.0m) 7s |
Table - best surf conditions forecast for Diamond Beach over the next 16 days.
Alright, Rusty here. Let's get into it for Diamond Beach.
Honestly, it's a rough stretch ahead. We've got a solid 16-day window, and I'm struggling to find a single session worth paddling out for. The swell is tiny, the wind is mostly messy, and it's all just too weak to get any real joy. The water temp is sitting right around 73°, which is pretty average for this time of year, no surprises there.
Kicking off Sunday the 12th through that week and into the next, we're looking at a whole lot of nothing. Swell heights are barely flickering, mostly 0.3 ft to 2 ft, and the combined swell energy is stuck on weak, barely cracking double digits most days (32, 39, 23, etc.). The wind is all over the place – cross-onshore, choppy, messy. There are a few windows of clean, cross-offshore wind like Wednesday the 15th and Thursday the 16th, but the swell is just too small to bother. Even when we get a bit of an offshore breeze on Friday the 17th and Saturday the 18th, the waves are only 0.3 ft to 1.0 ft.
Things try to pick up a tiny bit around the 20th and 21st of July. Monday the 20th afternoon sees a 5 ft S swell and combined energy hitting 147 (moderate wave energy), but the wind is cross-onshore and choppy, so it's going to be a real battle. Tuesday the 21st offers a 5 ft S swell with 124 energy, but again, that cross-onshore wind chops it up. For a beginner spot like Diamond Beach, anything over 5 ft can be a handful, and with the onshore trash, it's not a fun prospect for anyone. Honestly, that setup looks more interesting for a kite surfer than a paddle surfer.
The rest of the run into the end of July is more of the same – tiny, weak, and mostly cross-onshore.
So, bottom line: there are zero standouts. No hidden gem days. The best you could hope for is a clean morning around the 15th or 16th with that cross-offshore wind, but you'll be fighting for 1 ft waves that barely have any push. It's a lean period, but that's how it goes sometimes. Forecasts can always change, but for now, I'd be giving the board a rest.
Rusty out.
Short Range ForecastMostly dry. Warm (max 29°C on Wed morning, min 21°C on Tue morning). Wind will be generally light. | Days 5-7 Weather SummarySome drizzle, heaviest during Thu afternoon. Warm (max 35°C on Wed afternoon, min 19°C on Sat morning). Wind will be generally light. | ||||||||||||||||||||
Sun 12 | Monday 13 | Tuesday 14 | Wednesday 15 | Thursday 16 | Friday 17 | Saturday 18 | |||||||||||||||
PM | Night | AM | PM | Night | AM | PM | Night | AM | PM | Night | AM | PM | Night | AM | PM | Night | AM | PM | Night | AM | |
Swell Height Map |  |  |  |  |  |  |  |  | |||||||||||||
Wave Height (m) Direction Period (s) | E 5 | ESE 6 | ESE 6 | E 6 | ESE 6 | SE 9 | SE 9 | SE 9 | SE 9 | SE 9 | SSW 4 | S 5 | S 5 | SSE 5 | SSE 6 | SSE 6 | S 5 | ENE 4 | SSE 6 | SSW 3 | E 13 |
Wave Graph  | |||||||||||||||||||||
 kJ | 25 | 51 | 35 | 22 | 12 | 13 | 20 | 20 | 20 | 19 | 26 | 8 | 19 | 9 | 6 | 6 | 3 | 3 | 4 | 6 | 3 |
Wind (km/h) | |||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | cross-on | on | on | on | cross-on | cross | cross-on | cross-off | cross-off | cross-off | off | cross-off | cross-off | cross-off | cross-off | off | cross-off | off | cross-off | cross | cross |
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 | 1:19PM1.50m | |||||||
Low Tide | 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 | 6:34AM-0.04m | ||||||||
 |  | | | | | | | | | |  |  |  | | | | | | | | |
 | — | — | 5:43 | — | — | 5:45 | — | — | 5:45 | — | — | 5:46 | — | — | 5:47 | — | — | 5:48 | — | — | 5:48 |
 | 8:24 | — | — | 8:24 | — | — | 8:23 | — | — | 8:23 | — | — | 8:22 | — | — | 8:22 | — | — | 8:22 | — | 8:22 |
mm | — | — | — | — | — | — | — | — | — | — | — | — | 1 | — | — | — | — | — | — | — | — |
Temp °C | 24 | 23 | 23 | 23 | 23 | 23 | 26 | 26 | 29 | 35 | 34 | 26 | 28 | 28 | 24 | 26 | 26 | 22 | 26 | 25 | 24 |
Feels °C | 22 | 22 | 22 | 22 | 23 | 22 | 22 | 23 | 30 | 36 | 35 | 26 | 28 | 28 | 21 | 21 | 22 | 19 | 23 | 22 | 25 |
Swell 1 Height (m) Direction Period (s) | S 6 | SE 10 | ESE 6 | E 6 | ESE 6 | ESE 6 | SE 9 | S 5 | SE 9 | SE 9 | ESE 8 | S 5 | S 5 | SSE 5 | SSE 6 | SSE 6 | ENE 4 | ENE 4 | SSE 6 | SE 8 | SE 8 |
| kJ | 3 | 4 | 35 | 22 | 12 | 7 | 20 | 11 | 20 | 19 | 6 | 8 | 4 | 9 | 6 | 6 | 1 | 2 | 4 | 3 | 3 |
Swell 2 Height (m) Direction Period (s) | SE 10 | S 6 | SE 9 | SE 9 | SSE 5 | SSE 5 | E 8 | SE 9 | — | E 17 | — | ESE 8 | ESE 8 | ESE 8 | ENE 4 | ENE 4 | SE 8 | SE 8 | SE 8 | S 6 | S 7 |
| kJ | 4 | 1 | 3 | 12 | 5 | 3 | 1 | 20 | — | 5 | — | 6 | 6 | 6 | 1 | 2 | 3 | 3 | 3 | 3 | 1 |
Swell 3 Height (m) Direction Period (s) | — | — | S 6 | SE 9 | ESE 9 | SE 9 | E 8 | E 8 | — | — | — | — | — | — | SE 8 | SE 8 | S 5 | S 6 | ENE 4 | — | E 13 |
| kJ | — | — | 1 | 13 | 7 | 13 | 1 | 1 | — | — | — | — | — | — | 3 | 3 | 2 | 1 | 2 | — | 3 |
Wind waves Height (m) Direction Period (s) | E 5 | ESE 6 | — | SSE 5 | — | — | S 3 | SW 4 | SW 4 | SSW 5 | SSW 4 | W 3 | S 5 | NNW 2 | NW 3 | WNW 3 | — | — | — | SSW 3 | SSW 3 |
| kJ | 25 | 51 | — | 5 | — | — | 8 | 18 | 10 | 12 | 26 | 1 | 19 | 1 | 1 | 1 | — | — | — | 6 | 2 |
Nearest Offshore or Glassy | |||||||||||||||||||||
Distance (km) | 1135 | 502 | 502 | 502 | 502 | 85 | 160 | 260 | 98 | 119 | 20 | 1398 | 131 | 323 | 502 | 1037 | 813 | 1001 | 2613 | 199 | 335 |
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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