Surf Forecasts:
Diamond Beach surf forecast from 14 Jul 2026:
- Best quality surf: Saturday 18 Jul, 5PM (local time) - 3.5ft (1.1m), 5s period, S swell with cross-offshore winds.
- Most powerful swell: Tuesday 21 Jul, 8AM (local time) - 5ft (1.6m), 7s period, S swell with 261 kJ wave energy.
- Next surfable swell (1★+): Saturday 18 Jul, 5PM (local time) - 3.5ft (1.1m), 5s period with S 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 Saturday (Jul 18) at 5PM. The primary swell is predicted to be 1.1m and 5s period with a secondary swell of 0.1m and 13s. Another secondary swell of 0.1m and 9s 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 1.6m 7s and forecast to arrive on Tuesday (Jul 21) 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 0.6m 4s period and expected on Wednesday (Jul 15) at 5AM.
| Wave Type | Time (EDT) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | 5PM (Sat 18th Jul) | 3.5ft (1.1m) 5s |
| Best Surf | 5PM (Sat 18th Jul) | 3.5ft (1.1m) 5s |
| Most Powerful | 8AM (Tue 21st Jul) | 5ft (1.6m) 7s |
Table - best surf conditions forecast for Diamond Beach over the next 16 days.
The Lowdown
G’day, Rusty here. Look, I’ve been through the charts for the next 16 days, and it’s a pretty bleak stretch for Diamond Beach. There’s a big gap right from the start with nothing worth paddling out for, and it pretty much stays that way until the very end. No real standout session to speak of – just a couple of moments where it’s barely surfable, but nothing that’ll make you grab your board.
Diamond Beach is open to the SE, but the swell just doesn’t deliver. The water temp is sitting around 74°F, which is about average for this time of year, so nothing unusual there.
The first hint of anything rideable comes on Saturday, July 18th, late afternoon. We’ve got a 4ft swell from the S, period a weak 5 seconds, and the combined energy is a measly 79 (weak energy). The wind is cross-offshore from the W at 15 km/h (9 mph), so it’ll be clean, but the waves are super ordinary. It’s really just a beginner-level slosh, and the break is inconsistent, so don’t expect much.
Then on Wednesday, July 22nd, the morning brings a 3ft swell from the SSE, period 9 seconds, with a moderate offshore wind from the NW at 20 km/h (12 mph). The combined energy hits 101 (moderate wave energy). It’s clean, but again, it’s just surfable. Nothing special. The afternoon keeps the offshore wind (WNW 25 km/h, 16 mph), but the swell drops to 2ft, and energy falls to 70 (weak).
The last faint pulse is on Sunday, July 26th, afternoon, with a 3ft swell from the ESE, period 8 seconds, and a solid offshore from the WNW at 25 km/h (16 mph). Clean lines, but combined energy is only 89 (weak). It’s ordinary.
For the whole 16-day window, there’s no day where you’d think, “Yeah, I’m heading out for that.” The break is inconsistent, and when it does have a pulse, the quality is poor. For a beach setup like this, with the wind patterns, it’d be more interesting for kite surfing than paddle surfing.
Keep watching the forecast – it doesn’t usually stay this flat forever, and things can change. But for now, save the gas.
Rusty.
Short Range ForecastSome drizzle, heaviest during Thu night. Warm (max 35°C on Wed afternoon, min 22°C on Tue morning). Wind will be generally light. | Days 4-6 Weather SummaryModerate rain (total 16mm), heaviest on Sat morning. Warm (max 30°C on Sun afternoon, min 23°C on Sat morning). Wind will be generally light. | ||||||||||||||||||||
Tuesday 14 | Wednesday 15 | Thursday 16 | Friday 17 | Saturday 18 | Sunday 19 | Monday 20 | |||||||||||||||
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) | SE 9 | S 4 | SSW 4 | S 5 | SE 9 | S 5 | S 5 | S 5 | S 4 | SSE 5 | S 5 | SSE 4 | SSE 4 | S 5 | SSE 6 | SSE 8 | SSE 8 | SE 8 | SSE 4 | SSE 5 | SSE 6 |
Wave Graph  | |||||||||||||||||||||
 kJ | 13 | 18 | 31 | 8 | 12 | 13 | 9 | 8 | 5 | 4 | 4 | 5 | 10 | 70 | 43 | 44 | 48 | 64 | 26 | 32 | 68 |
Wind (km/h) | |||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | cross | cross-on | cross-off | cross-off | cross-off | cross-off | cross-off | cross | off | glassy | cross-on | cross-on | cross-on | cross-off | cross-off | cross-off | off | off | glassy | cross-on | cross-on |
High Tide | 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 | 2:08PM1.48m | 2:17AM1.29m | |||||||
Low Tide | 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 | 7:20AM0.06m | 7:54PM0.25m | ||||||||
 | |  | | | | | |  | |  | |  |  | | | | | | | | |
 | 5:45 | — | — | 5:45 | — | — | 5:46 | — | — | 5:47 | — | — | 5:48 | — | — | 5:48 | — | — | 5:48 | — | — |
 | — | 8:23 | — | — | 8:23 | — | — | 8:22 | — | — | 8:22 | — | — | 8:22 | — | — | 8:22 | — | — | 8:21 | — |
mm | — | — | — | — | — | — | — | — | 1 | — | — | 2 | 7 | 4 | 2 | — | 1 | — | — | — | — |
Temp °C | 24 | 26 | 27 | 29 | 35 | 35 | 29 | 32 | 32 | 27 | 28 | 27 | 23 | 24 | 24 | 28 | 30 | 29 | 25 | 27 | 27 |
Feels °C | 24 | 24 | 24 | 29 | 35 | 35 | 31 | 32 | 32 | 27 | 27 | 25 | 23 | 29 | 26 | 30 | 30 | 31 | 28 | 29 | 29 |
Swell 1 Height (m) Direction Period (s) | ESE 5 | E 6 | SE 9 | S 5 | S 5 | S 5 | S 5 | SE 8 | S 4 | SSE 5 | S 5 | ENE 4 | SE 14 | SE 13 | SSE 6 | SSE 8 | SSE 8 | NE 4 | NE 5 | NE 5 | SSE 6 |
| kJ | 6 | 3 | 13 | 7 | 4 | 13 | 9 | 3 | 5 | 4 | 4 | 1 | 7 | 7 | 43 | 44 | 48 | 1 | 1 | 1 | 68 |
Swell 2 Height (m) Direction Period (s) | SSE 5 | E 6 | E 8 | ESE 9 | SE 9 | ESE 8 | SE 8 | — | SE 9 | SE 8 | SE 8 | SE 8 | SE 14 | E 9 | SE 13 | NE 4 | NE 4 | SE 12 | SE 12 | E 12 | — |
| kJ | 2 | 2 | 1 | 8 | 12 | 7 | 3 | — | 3 | 3 | 3 | 3 | 7 | 2 | 7 | 1 | 1 | 6 | 6 | 3 | — |
Swell 3 Height (m) Direction Period (s) | SE 9 | E 8 | E 7 | — | E 17 | — | — | — | — | — | — | E 14 | E 9 | — | — | E 13 | E 13 | SE 12 | SE 12 | — | — |
| kJ | 13 | 1 | 1 | — | 5 | — | — | — | — | — | — | 4 | 2 | — | — | 3 | 3 | 6 | 6 | — | — |
Wind waves Height (m) Direction Period (s) | — | S 4 | SSW 4 | W 3 | W 3 | W 3 | — | S 5 | — | — | E 3 | SSE 4 | SSE 4 | S 5 | — | — | — | SE 8 | SSE 4 | SSE 5 | — |
| kJ | — | 18 | 31 | 6 | 1 | 5 | — | 8 | — | — | 1 | 5 | 10 | 70 | — | — | — | 64 | 26 | 32 | — |
Nearest Offshore or Glassy | |||||||||||||||||||||
Distance (km) | 2317 | 1212 | 299 | 86 | 260 | 289 | 289 | 131 | 1001 | 1009 | 1037 | 1009 | 1001 | 0 | 29 | 28 | 2 | 0 | 29 | 85 | 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.
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