Diamond Beach Surf Break

Lat Long: 38.96° N 74.85° W

Diamond Beach Surf Forecast and Surf Report

Issued: 7 pm 04 Sep 2026 (local time)

Forecast update in  hr  min

Today's Diamond Beach sea temperature is
25.1°C
2.9° 

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 5 Sep 2026:

  • Most powerful swell: Wednesday 9 Sep, 11PM (local time) - 5ft (1.6m), 6s period, S swell with 166 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 (Sep 09) 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 0.8m 4s period and expected on Thursday (Sep 10) at 8AM.

Wave TypeTime (EDT) & Date Wave Height & Period
Next good surf (1 star+)--
Best Surf--
Most Powerful11PM (Wed 9th Sep)5ft (1.6m) 6s

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


The Lowdown

Alright, let's get into this. Rusty here, and I'm looking at the next 16 days for our little stretch of sand.

Honestly, this is a tough one to call. The entire 16-day window is a real struggle for decent surf. There are no standout swells, no magic days. It's a persistent run of weak, short-period energy that barely gets the blood pumping. We're looking at a long stretch of flat to nearly flat conditions, so don't be in a rush to wax up.

Let's start with Diamond Beach. This spot is exposed to the southeast, but the problem is we just aren't seeing any real swell. The combined wave energy is almost laughably weak, spending most of the time in the teens and twenties, with a few brief moments barely cracking 70 (73 max on the 17th). That's a very weak energy. Those tiny, short-period swells (mostly 4-10 seconds) are just not going to wrap in with any real push.

First up, Saturday the 5th and Sunday the 6th are a write-off. Tiny 0.7ft to 1ft cross-shore slop. Not worth a paddle.

We get a little window of hope on Monday the 7th. The morning has a light 10 mph NE cross breeze and a 2ft swell from the east with a 10-second period, which is the best period we'll see for a while. But the energy is still a paltry 51. It might be clean enough for a beginner to get a couple of rides, but it's not something to get excited about.

The most promising conditions for a clean, small wave come on Tuesday the 8th morning. A 0.7ft southeast swell, with a clean 15 mph offshore from the WNW. The energy is only 11, so it's tiny, but it will be glassy and clean. The water temp is about average for this time of year. For a total beginner just wanting to feel a glide, that's your best bet in the first week. But you'll have to work for it.

Things get a bit more interesting on Wednesday the 9th, but not in a good way. The swell jumps to 3ft from the SSW, but the period drops to a terrible 4 seconds. That's pure wind chop, and with a 15 mph cross breeze, it's going to be a lumpy, messy onslaught. By the afternoon, it's 4ft at 5 seconds with 19 mph winds. That's a combo for a washing machine, not a wave.

After that, it's back to the doldrums. The 10th has a fresh offshore breeze, but the swell is already gone. From the 11th through the 20th, we're looking at tiny 0.3ft to 2ft swells with very weak energy. The wind is mostly cross or onshore, so forget about quality.

Even the 20th, which has a 1ft swell with a 11-second period, is still just a whisper. The energy is 33. It's a long period for a tiny swell, which means the few waves that do show will be clean but very inconsistent.

Honestly, if you're a kite surfer, Wednesday the 9th afternoon with that 4ft chop and 19 mph side wind might look fun. For paddle surfing, this is a two-week gap with nothing to recommend. The few clean moments like Tuesday the 8th morning are for the dedicated soul surfer on a log. The swell direction is mostly from the SE, which is exactly what Diamond Beach needs, but the size and energy are just not there. There are no standouts here. None.

- Rusty

Short Range Forecast

Light rain (total 5mm), mostly falling on Fri night. Warm (max 28°C on Fri night, min 21°C on Sun night). Wind will be generally light.

Days 5-7 Weather Summary

Mostly dry. Warm (max 27°C on Thu afternoon, min 21°C on Mon night). Winds increasing (light winds from the WSW on Tue afternoon, fresh winds from the SSW by Wed night).

Saturday
5
Sunday
6
Monday
7
Tuesday
8
Wednesday
9
Thursday
10
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
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
8
0.2
ESE
8
0.2
ESE
8
0.2
S
6
0.4
E
7
0.6
E
7
0.6
E
7
0.5
E
10
0.4
E
10
0.3
E
10
0.2
E
10
0.2
E
9
0.9
SSW
4
0.9
SSW
4
1.1
S
5
1.4
SSW
6
0.6
S
7
0.4
SSE
6
0.2
S
6
Wave Graph
Metric surfscale
Energy kJ
6
6
6
3
15
32
40
47
29
17
7
6
31
28
57
145
32
13
4
Wind (km/h)
20
W
15
N
5
WSW
15
SE
15
ENE
20
E
10
SE
10
NE
15
S
15
WSW
15
WNW
15
S
25
SW
25
SW
30
SSW
35
SW
30
WNW
25
NW
25
N
Wind State
cross-off
cross-off
cross-off
on
cross
cross-on
on
cross
cross-on
cross-off
off
cross-on
cross
cross
cross
cross
off
off
cross-off
High Tide
3:11AM1.21m
3:36PM1.52m
4:21AM1.23m
4:46PM1.54m
5:31AM1.29m
5:54PM1.58m
6:35AM1.40m
6:54PM1.65m
7:30AM1.51m
7:47PM1.69m
8:19AM1.60m
8:34PM1.70m
Low Tide
9:04PM0.25m
8:57AM0.23m
10:17PM0.20m
10:14AM0.20m
11:20PM0.12m
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
rain showers
part cloud
part cloud
clear
rain showers
rain showers
part cloud
clear
clear
clear
clear
clear
part cloud
clear
clear
clear
clear
clear
clear
<span class="translation_missing" title="translation missing: en.weather_tables.sunrise">Sunrise</span>
6:31
6:31
6:33
6:33
6:33
6:35
<span class="translation_missing" title="translation missing: en.weather_tables.sunset">Sunset</span>
7:24
7:23
7:22
7:21
7:19
7:16
7:15
 mm
3
1
1
Temp °C
28
24
26
25
23
23
22
22
23
23
22
24
24
24
26
25
26
27
25
Feels °C
29
22
27
25
22
22
21
21
22
21
22
24
22
21
23
21
23
23
21
  • 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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