Diamond Beach Surf Break

Lat Long: 38.96° N 74.85° W

Diamond Beach Surf Forecast and Surf Report

Issued: 7 am 19 Jul 2026 (local time)

Forecast update in  hr  min

Today's Diamond Beach sea temperature is
24.3° C
1.2° 

Diamond Beach surf forecast is for near shore open water. Breaking waves will often be smaller at less exposed spots.


Diamond Beach surf forecast from 19 Jul 2026:

  • Best quality surf: Wednesday 22 Jul, 5PM (local time) - 3ft (0.9m), 9s period, SSE swell with offshore winds.
  • Most powerful swell: Wednesday 22 Jul, 2AM (local time) - 5.5ft (1.7m), 8s period, S swell with 368 kJ wave energy.
  • Next surfable swell (1★+): Wednesday 22 Jul, 5PM (local time) - 3ft (0.9m), 9s 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 Wednesday (Jul 22) at 5PM. The primary swell is predicted to be 0.9m and 9s period. The wind is predicted to be offshore as the swell arrives.

The most powerful waves expected at Diamond Beach in the next 16 days are 1.7m 8s and forecast to arrive on Wednesday (Jul 22) at 2AM. 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 3s period and expected on Wednesday (Jul 22) at 8AM.

Wave TypeTime (EDT) & Date Wave Height & Period
Next good surf (1 star+) 5PM (Wed 22nd Jul)3ft (0.9m) 9s
Best Surf 5PM (Wed 22nd Jul)3ft (0.9m) 9s
Most Powerful 2AM (Wed 22nd Jul)5.5ft (1.7m) 8s

Table - best surf conditions forecast for Diamond Beach over the next 16 days.


The Lowdown

G’day, Rusty here. Look, I’ll be straight with you – for the next sixteen days, Diamond Beach is not going to be pumping. We’ve got a long stretch of mostly small, weak, and messy conditions. There’s a couple of moments where the ocean might just give you something to paddle into, but nothing that’s going to have you calling in sick.

The first real chance for a wave comes on Wednesday, July 22nd. It’s not a standout by any stretch, but it’s the best of a pretty quiet run. In the morning, we’ve got a 3ft swell from the SSE with a moderate cross-offshore breeze out of the west. It’ll be clean, and the combined swell energy is moderate at 127, so there’s a bit of push. Still, the period is only 8 seconds – a short-period wind swell – so it’s not going to have much shape. The afternoon cleans right up with a moderate NW offshore wind at 16 mph, and though the swell holds at 3ft from SSE with a 9-second period, the energy drops a touch to 113. The water is sitting at 76° with a positive anomaly of 2°, so a touch warmer than average for this time of year. This is a beginner-friendly size, so if you’re learning, it’s worth a look. Crowds are possible here, so keep an eye out.

The next flicker of something happens on Friday, July 31st. The morning shows a 5ft swell from the ENE with a period of 8 seconds. The combined energy shoots up to 221, which is solid moderate energy, and we’ve got a light cross-shore breeze. That’s a surfable combination, but the wind is cross-shore, not offshore, so it won’t be glassy. Still, at 5ft, it’s a step up in size – still okay for most intermediates. The afternoon gets a touch bigger at 4ft from the east, energy at 244, but the wind swings onshore and kills the quality.

Honestly, that’s about it for the whole 16-day window. From now until that Wednesday, and then again after the 31st, it’s a lot of flat, onshore garbage or tiny scraps. The rest of the time we’re looking at 1ft to 4ft swells with cross-onshore or onshore winds, and most days the score is a zero. There is a gap of several days with no real recommendations at all. On Sunday, August 2nd, there’s a brief sighting of a 4ft S swell with a light offshore wind in the afternoon, but the period is a pathetic 5 seconds – that’s just wind chop, not surf.

For a spot that’s exposed to the SE, the optimum swell direction is from the SE, which we do see occasionally, but the size and wind just aren’t lining up. This is an inconsistent break, and this forecast proves it. If you’re desperate, Wednesday the 22nd morning is your safest bet, or maybe the morning of the 31st for a bit more size. Otherwise, save your energy.

Rusty.

Short Range Forecast

Heavy rain (total 21mm), heaviest during Tue night. Warm (max 27°C on Sun afternoon, min 22°C on Sun night). Winds increasing (light winds from the N on Sun night, strong winds from the W by Tue night).

Days 4-6 Weather Summary

Mostly dry. Warm (max 27°C on Wed afternoon, min 20°C on Wed night). Winds decreasing (fresh winds from the NW on Wed afternoon, light winds from the SE by Fri afternoon).

Sunday
19
Monday
20
Tuesday
21
Wednesday
22
Thursday
23
Friday
24
Saturday
25
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
Rating
(10 max)
0
0
0
0
0
0
0
0
1
0
1
0
0
0
0
1
0
0
0
0
0
Swell
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Wave
Height (m)
Direction
Period (s)
0.6
S
7
0.5
S
7
0.4
SSE
7
0.3
SSE
7
0.3
SSE
7
0.7
SE
4
0.8
SE
5
1.1
SSE
4
1.7
S
8
0.9
SSE
8
0.9
SSE
9
0.8
SSE
8
0.9
ENE
5
0.9
ENE
5
0.4
SE
8
0.8
ENE
5
0.7
SE
8
0.5
SE
8
0.5
SE
8
0.4
SE
7
0.4
SE
7
Wave Graph
Metric surfscale
Energy kJ
34
27
16
9
9
14
28
42
368
127
113
82
30
37
23
27
65
31
28
19
17
Wind (km/h)
15
NW
20
NW
10
N
15
NE
10
ESE
20
SE
20
S
35
S
30
WSW
20
W
25
NW
20
NE
20
NE
20
ENE
15
NE
10
NNE
15
SSE
15
SSW
10
WSW
25
SW
20
W
Wind State
off
off
cross-off
cross
on
on
cross-on
cross-on
cross-off
cross-off
off
cross
cross
cross-on
cross
cross-off
on
cross-on
cross-off
cross
cross-off
High Tide
1:19PM1.50m
1:27AM1.40m
2:08PM1.48m
2:17AM1.29m
2:56PM1.44m
3:07AM1.20m
3:45PM1.42m
4:00AM1.13m
4:36PM1.41m
4:57AM1.09m
5:30PM1.41m
5:56AM1.10m
6:23PM1.44m
Low Tide
6:56PM0.17m
7:20AM0.06m
7:54PM0.25m
8:10AM0.16m
8:57PM0.30m
9:03AM0.23m
9:58PM0.31m
9:58AM0.27m
10:54PM0.29m
10:49AM0.28m
11:44PM0.25m
11:38AM0.27m
00:32AM0.20m
clear
clear
clear
clear
clear
part cloud
rain showers
thunderstorm
thunderstorm
clear
clear
clear
clear
clear
clear
clear
clear
part cloud
part cloud
clear
clear
<span class="translation_missing" title="translation missing: en.weather_tables.sunrise">Sunrise</span>
5:48
5:48
5:50
5:50
5:52
5:52
5:52
<span class="translation_missing" title="translation missing: en.weather_tables.sunset">Sunset</span>
8:22
8:21
8:20
8:19
8:19
8:17
8:16
 mm
1
5
15
Temp °C
24
27
26
24
25
25
24
25
24
26
27
24
22
22
22
22
23
23
23
25
23
Feels °C
23
24
24
23
26
25
26
25
20
26
23
21
18
18
19
21
22
21
22
24
20
  • Map Icons:
  • Break
  • Live Wave Height (m)
  • Live Wind Speed (km/h)
  • Surf Rating (10 Max)
  • Ocean Swells (m)
  • Wind Speed (km/h)
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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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