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Diamond Beach Surf Forecast
/ New Jersey (82 breaks) / New Jersey (82 breaks) /
Surf Forecasts:
Diamond Beach surfForecast / New Jersey / USA
12 Day Weather and Surf, issued 1 pm Wednesday 17 Sep 2025 EDT
Best Forecast Surf Conditions for Diamond Beach this week:
The surf forecast for Diamond Beach over the next 12 days: The first swell (rated 1 star or higher) is forecast to arrive on Thursday (Sep 18) at 2AM. The primary swell is predicted to be 0.9m and 8s period. The wind is predicted to be cross-offshore as the swell arrives.
The most powerful waves expected at Diamond Beach in the next 12 days are 1.6m 9s and forecast to arrive on Monday (Sep 22) at 2PM. Winds are predicted to be onshore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 0.4m 2s period and expected on Friday (Sep 19) at 2AM.
| Wave Type | Time (EDT) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | 2AM (Thu 18th Sep) | 3ft (0.9m) 8s |
| Best Surf | 2AM (Thu 18th Sep) | 3ft (0.9m) 8s |
| Most Powerful | 2PM (Mon 22nd Sep) | 5ft (1.6m) 9s |
Table - best surf conditions forecast for Diamond Beach over the next 12 days.
Short Range Forecast Some drizzle, heaviest during Wed afternoon. Warm (max 27°C on Fri afternoon, min 19°C on Wed night). Winds increasing (calm on Wed afternoon, fresh winds from the NE by Sat morning). | Days 3-6 Weather Summary Mostly dry. Warm (max 20°C on Sat afternoon, min 19°C on Sat afternoon). Winds decreasing (fresh winds from the ENE on Sat afternoon, light winds from the ESE by Tue morning). | ||||||||||||||||||||||
Wed 17 | Thursday 18 | Friday 19 | Saturday 20 | Sunday 21 | Monday 22 | Tuesday 23 | |||||||||||||||||
| PM | Night | AM | PM | Night | AM | PM | Night | AM | PM | Night | AM | PM | Night | AM | PM | Night | AM | PM | Night | AM | |||
Rating (10 max) | |||||||||||||||||||||||
Swell Height Map |  |  |  |  |  |  |  |  | |||||||||||||||
| Wave Height (m) & direction (?) | |||||||||||||||||||||||
| Period(s) (?) | 8 | 8 | 8 | 8 | 8 | 8 | 7 | 9 | 6 | 6 | 6 | 6 | 7 | 8 | 9 | 11 | 8 | 10 | 9 | 8 | 9 | ||
Wave (?)Graph  | |||||||||||||||||||||||
 kJ (?) | 121 | 83 | 44 | 44 | 30 | 19 | 10 | 13 | 81 | 113 | 71 | 124 | 152 | 191 | 216 | 234 | 90 | 120 | 96 | 64 | 70 | ||
Wind (km/h) | |||||||||||||||||||||||
| Wind State (?) onshore cross-onshore cross-shore cross-offshore offshore glassy | glass | cross- off | off | cross- off | cross- off | cross- off | cross- on | cross- off | cross | cross | cross- on | cross- on | cross- on | cross- on | cross- on | on | on | on | on | cross- on | cross- on | ||
High Tide / height (m) | 5:46PM 1.50 | 6:25AM 1.34 | 6:43PM 1.54 | 7:17AM 1.43 | 7:32PM 1.56 | 8:03AM 1.50 | 8:15PM 1.57 | 8:43AM 1.55 | 8:54PM 1.55 | 9:21AM 1.58 | 9:31PM 1.51 | 9:58AM 1.57 | 10:09PM 1.44 | 10:34AM 1.54 | |||||||||
Low Tide / height (m) | 12:05AM 0.09 | 12:07PM 0.14 | 12:52AM 0.04 | 12:58PM 0.10 | 1:36AM -0.00 | 1:46PM 0.06 | 2:17AM -0.02 | 2:30PM 0.05 | 2:54AM -0.01 | 3:12PM 0.05 | 3:30AM 0.02 | 3:52PM 0.07 | 4:03AM 0.06 | ||||||||||
Wed 17 | Thursday 18 | Friday 19 | Saturday 20 | Sunday 21 | Monday 22 | Tuesday 23 | |||||||||||||||||
| Sunrise | - | - | 6:43 | - | - | 6:43 | - | - | 6:43 | - | - | 6:45 | - | - | 6:46 | - | - | 6:47 | - | - | 6:48 | ||
| Sunset | 7:05 | - | - | 7:02 | - | - | 7:00 | - | - | 7:00 | - | - | 6:58 | - | - | 6:57 | - | - | 6:54 | - | - | ||
 |  |  |  | | | | | | |  |  | |  | | | | | | | | |||
Rain (mm) | 1 | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | ||
| Temp. °C | 21 | 21 | 21 | 25 | 26 | 23 | 27 | 27 | 20 | 20 | 19 | 19 | 19 | 20 | 20 | 20 | 20 | 20 | 21 | 21 | 21 | ||
| Feels °C (?) | 24 | 22 | 22 | 25 | 27 | 23 | 26 | 25 | 16 | 16 | 16 | 17 | 17 | 20 | 20 | 19 | 20 | 21 | 21 | 21 | 23 | ||
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Live Wave Height (m)
Live Wind Speed (km/h)
Surf Rating (10 Max)
Ocean Swells (m)- Wind Speed (km/h)
Recent Eyeball Surf Reports for New Jersey
Continuing clean conditions at Diamond Beach (light winds from the SE at Wildwood Airport 9 km from Diamond Beach). 1.1m 8s swell from the E with a 0.4m 5s windswell from the S. 2 swells combining to make bigger set waves.
2 h 31 min ago
FREE! Surf-Forecast.com widget for your website
The surf report / weather widget below is available to embed on third party websites free of charge and provides a summary of our Diamond Beach surf forecast. Simply grab the html code snippet that we provide and paste it into your own site. You can choose your preferred language and metric/imperial units for the surf forecast feed to suit users of your site. Click here to get the code.
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 12 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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