Diamond Beach Surf Break

Lat Long: 38.96° N 74.85° W

Diamond Beach Surf Forecast and Surf Report

Issued: 1 am 07 Sep 2026 (local time)

Forecast update in  hr  min

Today's Diamond Beach sea temperature is
25.2°C
3.1° 

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 7 Sep 2026:

  • Most powerful swell: Thursday 10 Sep, 2PM (local time) - 4ft (1.2m), 6s period, SSW swell with 115 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 1.2m 6s and forecast to arrive on Thursday (Sep 10) at 2PM. Winds are predicted to be cross-offshore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 0.4m 3s period and expected on Monday (Sep 07) at 11PM.

Wave TypeTime (EDT) & Date Wave Height & Period
Next good surf (1 star+)--
Best Surf--
Most Powerful 2PM (Thu 10th Sep)4ft (1.2m) 6s

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


The Lowdown

G’day, it’s Rusty here.

Look, I’m not going to sugarcoat it. Right now, and for the next week and a half, we’ve got pretty much nothing to get excited about. The swell is tiny, the winds are often messy, and the whole setup at Diamond Beach is looking flat and blown out. We’re talking a lot of mornings with a bit of cross-off wind, but the waves just aren’t showing up. There are a few clean windows, but they’re on barely-ankle-biters.

The one real positive to start with is the water temp. It’s sitting at 77°F, which is a massive 6°F warmer than usual for this time of year. That’s something else – you won’t need a bootie, that’s for sure.

Let’s run through the first week. Monday morning has a slight cross-off breeze but only 1ft and a weak 26 energy, so it’s a flat, glassy lake. The afternoon turns cross and it’s not doing us any favors. Tuesday’s a bit cleaner with a light offshore, but it’s dropped to 0.7ft. Wednesday brings a bit more size, up to 3ft in the arvo, but it’s a short, weak 4-second swell and a fresh onshore wind, making it lumpy and poor. Thursday morning is decent on paper – about 4ft with a cross-off breeze and clean conditions, but the period is a short 6 seconds, and the energy is still weak at 81. It’s going to be a bit fat and disorganized. Friday and the weekend just fade back out to knee-high mush with onshore and cross-onshore winds.

As we move into the second week, the story doesn't change. There are a few more clean, offshore mornings, especially the 16th and 20th, but the swell is almost non-existent – we’re talking 0.7ft. The swell direction is swinging around to the ESE, but it’s just not bringing any power. The 19th kicks up to 3ft, but that’s with a fresh cross-shore wind and a lumpy mess.

Honestly, the only standout, if you can call it that, is that Thursday morning on the 10th. It’s got the most size at a touch over 4ft, clean conditions, and a moderate cross-off breeze. It’s still not going to be epic, but it’s the closest we get to something surfable. For a beginner, it might be okay, but for anyone else, the paddle out is a waste of energy. The short period means it’ll be breaking all over the place, and since the direction is SW off the optimum SE, it’s not going to hold its shape.

There’s a long stretch from around the 15th through to the 22nd where there’s literally nothing besides micro-mush. This is just a typical dead spell for us. It doesn’t look like it’s going to change anytime soon, but forecasts can shift, so don’t write the whole month off just yet.

Keep the board in the car, but maybe just go for a swim this week.

Rusty.

Short Range Forecast

Mostly dry. Warm (max 26°C on Wed afternoon, min 20°C on Tue morning). Winds increasing (light winds from the NNE on Mon morning, fresh winds from the SSW by Wed night).

Days 4-6 Weather Summary

Light rain (total 2mm), mostly falling on Thu night. Warm (max 29°C on Thu afternoon, min 20°C on Fri morning). Winds decreasing (fresh winds from the SW on Thu morning, calm by Fri afternoon).

Monday
7
Tuesday
8
Wednesday
9
Thursday
10
Friday
11
Saturday
12
Sunday
13
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)
0.4
ENE
7
0.4
E
10
0.3
E
10
0.2
E
9
0.2
E
9
0.6
SSW
4
0.7
SSW
4
1
S
4
1.2
SSW
5
1.1
SSW
6
0.6
S
6
0.5
S
6
0.4
SSE
6
0.3
SE
9
0.5
SE
3
0.7
SE
4
0.8
SE
5
0.8
SSE
4
0.8
SSW
5
0.3
SE
10
0.4
SE
9
Wave Graph
Metric surfscale
Energy kJ
15
29
16
6
6
8
11
40
78
74
27
17
12
12
5
14
30
22
35
14
22
Wind (km/h)
5
NNE
15
SSW
15
WSW
15
WNW
10
SSW
20
SW
20
SSW
30
SSW
35
SSW
25
WSW
15
W
15
NW
15
NNE
10
SW
5
SE
20
SE
15
S
15
ESE
15
E
10
ESE
10
SSW
Wind State
cross-off
cross
cross-off
off
cross-on
cross
cross
cross-on
cross
cross-off
cross-off
off
cross-off
cross
on
on
cross-on
on
cross-on
on
cross-on
High Tide
5:54PM1.58m
6:35AM1.40m
6:54PM1.65m
7:30AM1.51m
7:47PM1.69m
8:19AM1.60m
8:34PM1.70m
9:05AM1.66m
9:19PM1.66m
9:48AM1.68m
10:02PM1.59m
10:31AM1.66m
10:45PM1.49m
Low Tide
11:20AM0.13m
00:15AM0.03m
12:19PM0.05m
1:06AM-0.05m
1:14PM-0.01m
1:54AM-0.11m
2:06PM-0.06m
2:39AM-0.14m
2:56PM-0.07m
3:22AM-0.13m
3:42PM-0.05m
4:02AM-0.08m
4:26PM-0.01m
4:39AM-0.01m
clear
clear
clear
clear
clear
clear
part cloud
clear
clear
clear
part cloud
thunderstorm
clear
clear
clear
clear
part cloud
part cloud
part cloud
clear
clear
<span class="translation_missing" title="translation missing: en.weather_tables.sunrise">Sunrise</span>
6:33
6:33
6:33
6:35
6:35
6:37
6:37
<span class="translation_missing" title="translation missing: en.weather_tables.sunset">Sunset</span>
7:21
7:19
7:16
7:15
7:14
7:13
7:10
 mm
2
Temp °C
22
23
23
22
25
24
24
26
24
25
29
27
22
24
23
24
24
23
24
24
24
Feels °C
22
22
22
22
25
23
22
23
20
22
29
28
20
23
23
23
23
24
25
25
26
  • 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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