Diamond Beach Surf Break

Lat Long: 38.96° N 74.85° W

Issued: 7 am 03 Jul 2026 (local time)

Forecast update in  hr  min

Today's Diamond Beach sea temperature is
22.6° C

1.3°C warmer than normal for this time of year

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 3 Jul 2026:

  • Most powerful swell: Wednesday 8 Jul, 2AM (local time) - 5ft (1.6m), 6s period, SSW swell with 198 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 1.6m 6s and forecast to arrive on Wednesday (Jul 08) at 2AM. Winds are predicted to be cross-onshore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 0.5m 3s period and expected on Saturday (Jul 04) at 11PM.

Wave TypeTime (EDT) & Date Wave Height & Period
Next good surf (1 star+)--
Best Surf--
Most Powerful 2AM (Wed 8th Jul)5ft (1.6m) 6s

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


Updates in  hr  min  s Forecast update imminent

Alright, I’m looking at this forecast for Diamond Beach and honestly, it's been a rough run for the first week. The water temp is sitting at 73°F, which feels a touch warmer than usual for July here—like the ocean’s having an off-season summer vibe.

First thing, there's virtually nothing on the table for the opening days. The first record we get is for Friday, July 3rd, but wave heights are barely 0.7ft to 1ft, with poor conditions and cross-off or onshore breezes. The energy is weak, sitting around 17 to 27 (combined swell energy). Not worth paddling out.

Saturday the 4th is more of the same: tiny swell around 1.0ft, and those morning winds are light cross-off (clean looking), but the afternoon gets wrecked by a moderate cross-onshore from the south at 16 mph. Same story for Sunday the 5th—morning sees glassy conditions with 1.0ft SE swell, but it's so weak (12 energy), you'd be bobbing more than riding. The arvo gets a risk of thunderstorms and onshore wind. No go.

Monday the 6th through to Thursday the 9th is pretty much a write-off. Tiny swell, mostly cross-onshore or onshore wind, and energy values barely creeping past 50 or 60. It’s not surfable in a meaningful way.

We finally see a small pulse of hope on Friday, July 10th. The morning has 2ft from the south, with a clean cross-off breeze from the WNW (9 mph). It’s still poor conditions overall though, and the afternoon jumps up to 3ft S swell, but with a really short period of 4 seconds and an offshore wind. That’s about as messy as it sounds—forced, weak lines. Not recommended.

Saturday, July 11th morning is the first time we get a “surfable” nod—2ft SSE swell with a clean, light cross-off. Energy is 82—still moderate, but at least there’s a sniff of quality. The crowd factor is listed as "sometimes," so it might be worth a paddle if you’re desperate. But honestly, the waves are ordinary.

The real standout here is late in the second week. Mark your calendar for Saturday, July 18th. Morning sees 3ft from the SSE, combined with a clean offshore breeze from the WNW at 16 mph, producing moderate offshore and clean waves. Energy hits 87. It’s not massive, but given the weeks of tiny, choppy junk, this is the best window—small but clean lines, and the offshore wind will groom it. It’s still only a beginner-friendly break and is inconsistent, so you’ll have to be patient between sets. The swell direction from the SSE is a reasonable match for Diamond Beach’s exposure.

The afternoon of the 18th drops off again to 2ft, so don’t sleep in—hit it early.

Overall, this is a stretch of mostly flat or poor surf, with the only real recommendable session being the morning of July 18th. The rest of the time you’re looking at tiny wavelets, onshore mess, or not enough energy to bother. It’s one of those runs where the ocean’s taking a holiday, and so should you.

Rusty.

Short Range Forecast

Moderate rain (total 17mm), heaviest on Sat night. Warm (max 34°C on Fri afternoon, min 23°C on Sun night). Winds decreasing (strong winds from the WSW on Sat night, calm by Sun morning).

Days 4-6 Weather Summary

Light rain (total 3mm), mostly falling on Mon morning. Warm (max 27°C on Tue afternoon, min 21°C on Tue night). Wind will be generally light.

Friday
3
Saturday
4
Sunday
5
Monday
6
Tuesday
7
Wednesday
8
Thursday
9
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
0
0
0
0
0
0
0
0
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)
0.2
ESE
9
0.4
SE
9
0.3
SE
9
0.3
SE
9
0.7
S
4
0.3
SE
9
0.3
SE
8
0.2
ESE
8
0.2
ESE
8
0.2
ESE
9
0.4
SE
9
0.6
S
4
0.4
E
5
0.4
SE
10
1.6
SSW
6
0.7
SSE
7
0.6
S
7
0.9
S
7
0.7
SSE
7
0.7
S
6
0.3
SE
10
Wave Graph
Metric surfscale
Energy kJ
8
23
13
13
13
12
11
7
7
8
22
13
9
34
198
52
34
70
55
40
15
Wind (km/h)
10
W
25
SSW
5
NNW
5
WSW
25
S
15
WSW
5
W
20
SSE
15
ENE
20
SSE
30
SSE
10
SW
10
W
15
E
15
E
15
E
15
SE
20
S
20
SSE
30
SSE
10
SW
Wind State
cross-off
cross-on
off
cross-off
cross-on
cross-off
glassy
on
cross
on
cross-on
cross
cross-off
cross-on
cross-on
cross-on
on
cross-on
cross-on
cross-on
cross
High Tide
11:25AM1.24m
11:25PM1.46m
12:05PM1.26m
00:05AM1.42m
12:47PM1.30m
00:50AM1.37m
1:32PM1.36m
1:40AM1.33m
2:19PM1.42m
2:34AM1.29m
3:11PM1.48m
3:34AM1.25m
4:09PM1.55m
4:42AM1.24m
Low Tide
5:00PM0.23m
5:36AM0.06m
5:38PM0.25m
6:10AM0.08m
6:20PM0.28m
6:46AM0.09m
7:14PM0.30m
7:31AM0.11m
8:23PM0.30m
8:27AM0.12m
9:38PM0.26m
9:32AM0.12m
10:45PM0.19m
clear
clear
thunderstorm
clear
clear
light rain
part cloud
rain showers
thunderstorm
thunderstorm
part cloud
thunderstorm
part cloud
thunderstorm
clear
part cloud
part cloud
clear
clear
thunderstorm
rain showers
<span class="translation_missing" title="translation missing: en.weather_tables.sunrise">Sunrise</span>
5:37
5:37
5:39
5:39
5:39
5:41
5:41
<span class="translation_missing" title="translation missing: en.weather_tables.sunset">Sunset</span>
8:28
8:28
8:28
8:27
8:27
8:27
8:27
 mm
2
5
3
7
1
1
1
1
4
Temp °C
32
34
28
28
33
26
26
28
26
24
25
25
25
27
23
21
22
22
24
25
25
Feels °C
34
35
28
31
36
25
29
30
28
24
26
25
28
30
24
20
23
22
25
25
25
Swell 1
Height (m)
Direction
Period (s)
0.3
S
4
0.4
SE
9
0.4
SSE
4
0.3
S
5
0.3
SE
9
0.4
S
4
0.3
SE
8
0.2
ESE
8
0.2
ESE
8
0.3
E
3
0.4
ENE
4
0.4
E
4
0.4
E
5
0.3
E
6
0.8
S
6
0.7
SSE
7
0.3
SE
9
0.6
S
6
0.7
SSE
7
0.3
SE
9
0.4
SSE
4
Energy kJ
4
23
7
4
13
6
11
7
7
2
6
6
9
5
39
52
14
29
55
12
7
Swell 2
Height (m)
Direction
Period (s)
0.2
ESE
7
0.3
SE
9
0.3
SE
9
0.3
SE
9
0.2
S
4
0.2
S
4
0.2
S
5
0.2
ESE
9
0.4
SE
9
0.2
ESE
10
0.2
ESE
10
0.4
SE
10
0.3
SE
9
0.2
ESE
9
0.2
E
5
0.3
SE
9
0.2
ESE
9
0.1
E
6
0.3
SSE
6
Energy kJ
5
13
13
12
1
2
2
8
22
9
9
24
13
9
2
13
8
1
7
Swell 3
Height (m)
Direction
Period (s)
0.2
ESE
9
0.1
SW
4
0.1
E
9
0.3
E
5
0.2
E
5
0.2
E
9
0.1
E
6
0.2
E
7
0.1
E
10
0.3
SE
10
Energy kJ
8
1
2
5
2
6
1
4
2
15
Wind waves
Height (m)
Direction
Period (s)
0.5
S
3
0.4
W
2
0.7
S
4
0.4
WNW
3
0.2
E
3
0.3
SSE
4
0.6
SE
4
0.6
S
4
0.5
S
4
0.9
SSE
4
1.6
SSW
6
0.6
S
7
0.9
S
7
0.7
S
6
Energy kJ
4
2
12
4
1
2
9
13
9
34
198
34
70
40
Nearest Offshore or Glassy
Rating
(10 max)
1
1
1
1
1
1
1
1
1
1
1
1
1
1
2
1
1
1
1
1
1
Distance (km)
230
403
65
376
119
376
1137
1001
1174
946
556
91
65
123
123
8
313
102
325
372
32
Best forecast wave conditions in New Jersey
Rating
(10 max)
1
1
1
1
2
1
Best forecast wave conditions in United States
Rating
(10 max)
2
2
2
1
2
2
1
2
3
3
2
4
2
3
3
2
2
3
2
2
4
Header Global
Rating
(10 max)
5
5
5
4
5
9
7
5
6
8
7
5
5
9
9
9
5
6
6
7
7
  • 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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