Diamond Beach Surf Break

Lat Long: 38.96° N 74.85° W

Diamond Beach Surf Forecast and Surf Report

Issued: 1 pm 24 Aug 2026 (local time)

Forecast update in  hr  min

Today's Diamond Beach sea temperature is
24.7°C
1.5° 

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 25 Aug 2026:

  • Best quality surf: Monday 31 Aug, 8PM (local time) - 1ft (0.3m), 17s period, SE swell with offshore winds.
  • Most powerful swell: Friday 28 Aug, 8PM (local time) - 3.5ft (1.1m), 6s period, S swell with 77 kJ wave energy.
  • Next surfable swell (1★+): Monday 31 Aug, 8PM (local time) - 1ft (0.3m), 17s 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 Monday (Aug 31) at 8PM. The primary swell is predicted to be 0.3m and 17s period with a secondary swell of 0.3m and 7s. Another secondary swell of 0.9m and 4s is also forecast. 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 1.1m 6s and forecast to arrive on Friday (Aug 28) at 8PM. Winds are predicted to be cross-shore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 0.3m 2s period and expected on Saturday (Aug 29) at 8AM.

Wave TypeTime (EDT) & Date Wave Height & Period
Next good surf (1 star+) 8PM (Mon 31st Aug)1ft (0.3m) 17s
Best Surf 8PM (Mon 31st Aug)1ft (0.3m) 17s
Most Powerful 8PM (Fri 28th Aug)3.5ft (1.1m) 6s

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


The Lowdown

Alright, let’s get real about Diamond Beach. I’ll walk you through this stretch – it’s a bit of a waiting game.

Right now we’ve got a quiet start with barely a ripple. From Monday afternoon through the first few days, you’re looking at tiny swell, under 2ft, with short periods below 8 seconds. The energy is weak (20–96). Winds are mostly light or offshore at times, keeping things glassy or clean, but it’s not enough wave to bother with. This is really only interesting for beginners wanting to practice pop-ups on ankle-biters. It stays like this all through the end of August and into the first days of September.

Then, around Thursday the 3rd of September, things start to change – that’s over a week away. Early on Thursday morning we see a jump in swell to 6ft from the east, with a period of 7 seconds. Combined energy climbs to 640 – that’s moderate to strong. The wind is light, cross-off from the north, so the surf is clean. It’s a notable jump, but at around 6ft, it’s getting a bit much for beginners. I’d call this the standout window if you’re an experienced surfer willing to sit on it.

Following that, Friday the 4th and Saturday the 5th of September keep that east swell at 5ft to 6ft, with periods holding around 8 seconds. The wind on Saturday morning and afternoon goes offshore from the NNW at 15 mph, keeping the waves clean and lined up. The energy remains in the moderate range (356–637). This run from Thursday to Saturday is the best you’ll see in the whole forecast – solid, rideable east swell with good offshore wind. Crowds at Diamond Beach are sometimes heavy, so expect company if you head out.

The swell tails off into the second week, dropping to 4ft on Sunday the 6th, still clean in the morning with light offshore winds. After that, we fade into smaller, choppier stuff.

One thing to note: Diamond Beach is listed as inconsistent and rarely breaks. So this east swell event is a bit of a bonus for those willing to wait. The water temperature is around 77°F – a touch warmer than normal for this time of year, which is nice for long sessions.

That’s the outlook mate. This place isn’t your everyday runner, but the window from the 3rd to the 6th of September is your best shot. Score it if you can.

- Rusty

Short Range Forecast

Light rain (total 3mm), mostly falling on Thu morning. Warm (max 26°C on Mon afternoon, min 20°C on Tue morning). Wind will be generally light.

Days 5-7 Weather Summary

Moderate rain (total 19mm), heaviest on Thu night. Warm (max 27°C on Fri afternoon, min 22°C on Fri morning). Wind will be generally light.

Mon
24
Tuesday
25
Wednesday
26
Thursday
27
Friday
28
Saturday
29
Sunday
30
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
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
12
0.3
SE
11
0.3
SE
11
0.3
SE
11
0.3
SE
11
0.3
SE
9
0.4
SE
9
0.4
ESE
9
1
SSE
5
1
SSE
5
0.4
ESE
9
0.6
ESE
8
0.7
SSE
6
0.4
SE
8
0.4
SE
8
0.4
SE
7
0.4
SE
6
0.4
SE
8
0.8
SSE
3
1.1
S
5
Wave Graph
Metric surfscale
Energy kJ
13
19
18
18
18
14
19
32
40
48
32
47
34
17
16
19
10
18
12
52
Wind (km/h)
5
SSW
15
NNW
15
WNW
15
NW
10
NNW
5
SSE
25
SSE
25
S
20
SSE
25
SSE
15
SSW
15
SW
10
WSW
15
NNE
20
NE
15
ESE
15
S
15
S
25
S
25
SSW
Wind State
glassy
cross-off
off
off
off
glassy
cross-on
cross-on
cross-on
cross-on
cross
cross
cross-off
cross-off
cross
on
cross-on
cross-on
cross-on
cross
High Tide
6:42PM1.45m
7:11AM1.22m
7:27PM1.51m
7:54AM1.30m
8:07PM1.56m
8:32AM1.37m
8:44PM1.59m
9:08AM1.44m
9:20PM1.58m
9:43AM1.49m
9:56PM1.56m
10:18AM1.53m
10:34PM1.51m
Low Tide
00:46AM0.18m
12:47PM0.22m
1:29AM0.11m
1:33PM0.16m
2:09AM0.04m
2:17PM0.12m
2:48AM-0.01m
3:00PM0.08m
3:25AM-0.03m
3:42PM0.06m
4:00AM-0.04m
4:22PM0.06m
4:34AM-0.03m
clear
clear
clear
clear
clear
part cloud
part cloud
part cloud
thunderstorm
thunderstorm
thunderstorm
part cloud
rain showers
thunderstorm
clear
clear
part cloud
clear
clear
part cloud
<span class="translation_missing" title="translation missing: en.weather_tables.sunrise">Sunrise</span>
6:20
6:22
6:22
6:24
6:24
6:26
<span class="translation_missing" title="translation missing: en.weather_tables.sunset">Sunset</span>
7:42
7:39
7:38
7:37
7:36
7:35
7:32
 mm
3
4
6
3
6
Temp °C
26
25
22
25
24
22
24
24
25
26
25
24
27
27
23
23
23
24
25
25
Feels °C
26
24
20
23
23
22
22
22
25
25
25
26
29
28
22
22
23
23
23
25
  • Map Icons:
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  • 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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