Diamond Beach Surf Break

Lat Long: 38.96° N 74.85° W

Diamond Beach Surf Forecast and Surf Report

Issued: 1 am 30 Aug 2026 (local time)

Forecast update in  hr  min

Today's Diamond Beach sea temperature is
24.6°C
2.0° 

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 30 Aug 2026:

  • Best quality surf: Wednesday 2 Sep, 8PM (local time) - 3.5ft (1.0m), 10s period, E swell with glassy winds.
  • Most powerful swell: Wednesday 2 Sep, 11PM (local time) - 3.5ft (1.1m), 10s period, E swell with 228 kJ wave energy.
  • Next surfable swell (1★+): Wednesday 2 Sep, 8AM (local time) - 1.5ft (0.5m), 11s period with SE 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 (Sep 02) at 8AM. The primary swell is predicted to be 0.5m and 11s period with a secondary swell of 0.4m and 4s. 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 1.1m 10s and forecast to arrive on Wednesday (Sep 02) at 11PM. Winds are predicted to be cross-shore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 0.4m 3s period and expected on Wednesday (Sep 02) at 2AM.

Wave TypeTime (EDT) & Date Wave Height & Period
Next good surf (1 star+) 8AM (Wed 2nd Sep)1.5ft (0.5m) 11s
Best Surf 8PM (Wed 2nd Sep)3.5ft (1.0m) 10s
Most Powerful11PM (Wed 2nd Sep)3.5ft (1.1m) 10s

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


The Lowdown

Alright, Rusty here again, but switching to feet and Fahrenheit.

First off, I’ll level with you – this 16-day stretch for Diamond Beach is a tough one. There’s nothing that’s going to get your heart pumping. The end of August and the first few days of September are basically a blank run, with a solid week of nothing worth paddling out for. The swell is tiny, the wind is mostly wrong, and the energy is weak. The only flicker of hope comes on the morning of Wednesday 2nd September, but even that’s just a "surfable but ordinary" moment.

Let’s go through it.

From Sunday 30th August through Tuesday 1st September, forget it. Swell heights are between 1.0 and 2 feet, periods are short – 3 to 8 seconds – and the wind is cross or cross-on. The combined swell energy is weak, sitting between 13 and 22. The water temp is a touch warmer than normal at 76° for the first session, but that doesn’t matter when there’s no waves.

Wednesday 2nd September morning is the only time in the first week that’s even worth mentioning. The swell is still just 2 feet from the SE, but the period stretches to 11 seconds, giving it a little more push. The wind is light cross-off from the WNW, so it’s clean. The combined energy is 83 (moderate), but it’s still small. For a beginner, it might be a go, but don’t expect much.

After that, it’s back to poor conditions through the rest of the week and into the weekend. Thursday 3rd, Friday 4th, Saturday 5th, and Sunday 6th September all show tiny swell (1.0 to 3 feet) with short periods and mostly cross or onshore winds. The energy is weak, and the surf quality is poor. Nothing to pack the car for.

Then we hit the second week. Monday 7th September afternoon shows a bump in combined energy to 155 (moderate), with a 2-foot SE swell and 11-second period, but the wind is cross-on from the east at 12 mph, making it choppy. Tuesday 8th sees a similar story – 3 to 3 feet from the SE and SSE, but again, onshore winds and choppy conditions. The energy is still moderate (80 to 98), but it’s not clean.

The rest of the week from Wednesday 9th to Friday 11th September is a repeat of small, poor surf with onshore winds. The combined energy drops back to weak levels (14 to 57). The only real standout in the entire 16 days is the morning of Saturday 12th September. The swell is still only 1.0 foot from the SE, but the period is 10 seconds, and the wind is glassy – offshore from the north at just 3 mph. That’s as clean as it gets, but the swell is tiny. The energy is weak at 26. For a longboard or a foamie, it might be a fun, glassy morning, but it’s not a proper surf.

Sunday 13th and Monday 14th September are poor again, with small swell and mixed winds.

So, the honest truth: there is no standout session in this 16-day window. The best on offer is the Wednesday 2nd September morning for its clean conditions and slightly longer period, or the glassy Saturday 12th September morning for the peace and quiet. Neither is what you’d call a good surf. For a beach break like Diamond Beach, the lack of consistency is normal for this area when the patterns are this flat. Keep an eye on the forecasts – it tends not to stay this poor for long.

Rusty.

Short Range Forecast

Light rain (total 9mm), mostly falling on Mon morning. Warm (max 29°C on Tue afternoon, min 22°C on Sun morning). Wind will be generally light.

Days 4-6 Weather Summary

Moderate rain (total 16mm), heaviest on Thu night. Warm (max 33°C on Wed night, min 21°C on Fri night). Mainly fresh winds.

Sunday
30
Monday
31
Tuesday
1
Wednesday
2
Thursday
3
Friday
4
Saturday
5
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
1
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)
0.4
SE
8
0.7
S
3
0.6
S
4
0.3
SE
8
0.3
SE
8
0.3
SE
7
0.3
SE
7
0.3
SE
7
0.4
SE
12
0.6
SE
11
0.5
SE
10
1.1
E
7
0.8
E
7
0.6
E
7
0.5
E
7
0.5
E
8
0.4
E
7
0.3
E
7
0.3
E
7
0.3
E
9
0.3
E
8
Wave Graph
Metric surfscale
Energy kJ
18
11
11
10
9
9
9
7
52
75
49
113
68
38
24
29
16
8
8
14
12
Wind (km/h)
10
SSW
30
S
15
SSW
10
SW
5
SSW
15
WSW
5
SW
10
SSW
15
WSW
10
WNW
15
SSW
15
E
10
ESE
15
S
10
W
5
NNW
10
WNW
20
NNE
15
N
15
WNW
20
N
Wind State
cross
cross-on
cross
cross
cross-on
cross-off
cross
cross-on
cross-off
cross-off
cross-on
cross-on
on
cross-on
cross-off
cross-off
cross-off
cross-off
cross-off
cross-off
cross-off
High Tide
10:18AM1.53m
10:34PM1.51m
10:57AM1.56m
11:17PM1.44m
11:40AM1.57m
00:06AM1.37m
12:30PM1.56m
1:03AM1.30m
1:27PM1.54m
2:05AM1.24m
2:29PM1.52m
3:11AM1.21m
3:36PM1.52m
4:21AM1.23m
Low Tide
4:22PM0.06m
4:34AM-0.03m
5:04PM0.08m
5:09AM0.01m
5:48PM0.12m
5:48AM0.06m
6:40PM0.18m
6:35AM0.13m
7:46PM0.24m
7:37AM0.20m
9:04PM0.25m
8:57AM0.23m
10:17PM0.20m
clear
clear
rain showers
thunderstorm
part cloud
thunderstorm
part cloud
part cloud
thunderstorm
part cloud
clear
rain showers
clear
part cloud
rain showers
clear
clear
rain showers
clear
clear
clear
<span class="translation_missing" title="translation missing: en.weather_tables.sunrise">Sunrise</span>
6:26
6:26
6:26
6:28
6:28
6:30
6:31
<span class="translation_missing" title="translation missing: en.weather_tables.sunset">Sunset</span>
7:32
7:31
7:30
7:28
7:27
7:24
7:23
 mm
1
3
3
2
4
11
1
Temp °C
23
26
25
25
27
27
25
29
29
27
32
33
25
29
32
25
29
27
22
25
25
Feels °C
24
24
24
28
30
31
28
31
31
30
34
37
29
30
35
27
29
27
20
22
23
  • Map Icons:
  • Break
  • Live Wave Height (m)
  • Live Wind Speed (km/h)
  • Surf Rating (10 Max)
  • Ocean Swells (m)
  • Wind Speed (km/h)
Map placeholder
How to use the Wavefinder 
submit an eyeball surf report

Quick surf report for Diamond Beach:

join our community of surf reporters

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 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.

Nearest locationNearest