Diamond Beach surfForecast / New Jersey / USA

information circle12 Day Weather and Surf, issued 7 am Sunday 13 Jul 2025 EDT
Forecast update in hr  min  s Forecast update imminent
Diamond Beach surf forecast is for near shore open water. Breaking waves will often be smaller at less exposed spots.
Today's Diamond Beach sea temperature is
24.5° C
(Which is 1.9°C warmer than normal for this time of year)


Best Forecast Surf Conditions for Diamond Beach this week:

The surf forecast for Diamond Beach over the next 12 days: The first swell (rated 1 star or higher) is forecast to arrive on Friday (Jul 18) at 2AM. The primary swell is predicted to be 0.8m and 7s period with a secondary swell of 0.1m and 11s. The wind is predicted to be cross-offshore as the swell arrives.

The most powerful waves expected at Diamond Beach in the next 12 days are 1.1m 6s and forecast to arrive on Thursday (Jul 17) at 8AM. Winds are predicted to be cross-shore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 0.7m 4s period and expected on Friday (Jul 18) at 5AM.

Wave TypeTime (EDT) & Date Wave Height & Period
Next good surf (1 star+) 2AM (Fri 18th Jul)2.5ft (0.8m) 7s
Best Surf 2AM (Fri 18th Jul)2.5ft (0.8m) 7s
Most Powerful 8AM (Thu 17th Jul)3.5ft (1.1m) 6s

Table - best surf conditions forecast for Diamond Beach over the next 12 days.

Updates in  hr  min  s Forecast update imminent
Sunday
13
Monday
14
Tuesday
15
Wednesday
16
Thursday
17
Friday
18
Saturday
19
Sunday
20
Monday
21
Tuesday
22
Wednesday
23
Thursday
24
AMPMNightAMPMNightAMPMNightAMPMNightAMPMNightAMPMNightAMPMNightAMPMNightAMPMNightAMPMNightAMPMNightAMPMNight
Rating
(10 max)
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
Swell
Height Map
Wave Height (m) & direction (?)
0.3
SSE
0.3
SSE
0.4
E
0.3
E
0.3
E
0.2
SSE
0.3
E
0.6
S
0.6
S
0.4
SSE
0.8
S
0.8
S
0.8
S
0.8
S
0.8
SSE
0.7
S
0.5
SSE
0.4
S
0.4
SSE
0.4
SSE
0.3
SE
0.3
SE
0.2
SSE
0.3
SE
0.3
SE
0.3
SE
1
E
1.3
E
1.3
ENE
1.2
E
1.1
E
1
E
0.8
E
0.7
E
0.6
E
1.1
S
Period(s) (?)765569645646677776768889976667888995
Wave
Graph
(?)Metric surfscale
Energy (?)17161412131817153414193957566050292520191511121514196112714014715214795878591
Wind
(km/h)
5
E
10
ESE
10
S
15
S
20
SSE
10
SW
15
WSW
15
S
15
SW
10
S
20
S
15
SW
15
SSW
15
SSW
15
WSW
15
W
10
SW
15
W
10
W
15
W
10
N
15
NE
10
E
10
NNE
20
NE
15
ESE
15
SE
20
E
15
ESE
10
SE
10
SE
15
SE
15
S
15
S
25
S
15
WSW
Wind State (?)
onshore
cross-onshore
cross-shore
cross-offshore
offshore
glassy
cross-
on
oncross-
on
cross-
on
cross-
on
crosscross-
off
cross-
on
crosscross-
on
cross-
on
crosscrosscrosscross-
off
cross-
off
crosscross-
off
cross-
off
cross-
off
cross-
off
crosscross-
on
cross-
off
crosscross-
on
oncross-
on
cross-
on
onononcross-
on
cross-
on
cross-
on
cross-
off
High Tide
/ height (m)
10:53AM
1.33
11:00PM
1.58
11:38AM
1.37
11:47PM
1.54
12:27PM
1.41
12:37AM
1.48
1:17PM
1.46
1:31AM
1.41
2:09PM
1.51
2:27AM
1.35
3:03PM
1.55
3:27AM
1.29
4:02PM
1.58
4:33AM
1.25
5:05PM
1.61
5:42AM
1.25
6:09PM
1.65
6:48AM
1.29
7:10PM
1.69
7:46AM
1.35
8:04PM
1.72
8:39AM
1.41
8:54PM
1.73
Low Tide
/ height (m)
4:38PM
0.12
5:14AM
-0.05
5:21PM
0.13
5:52AM
-0.04
6:09PM
0.16
6:34AM
-0.02
7:05PM
0.20
7:22AM
0.02
8:13PM
0.22
8:19AM
0.06
9:26PM
0.21
9:23AM
0.09
10:34PM
0.16
10:27AM
0.09
11:36PM
0.09
11:28AM
0.07
12:34AM
0.03
12:27PM
0.05
1:30AM
-0.03
1:24PM
0.02
2:23AM
-0.08
2:19PM
0.01
3:12AM
-0.11
Sunday
13
Monday
14
Tuesday
15
Wednesday
16
Thursday
17
Friday
18
Saturday
19
Sunday
20
Monday
21
Tuesday
22
Wednesday
23
Thursday
24
Sunrise5:43--5:45--5:45--5:46--5:47--5:48--5:48--5:48--5:50--5:50--5:52--5:52--
Sunset-8:24--8:23--8:23--8:22--8:22--8:22--8:22--8:21--8:20--8:19--8:19--8:17-
cloudclearclearclearrain showersmod rainthunderstorm rain showersclearclearclearclearpart cloudclearthunderstorm thunderstorm clearrain showersclearrain showersrain showersclearclearclearclearclearclearclearpart cloudpart cloudclearclearclearclearthunderstorm thunderstorm
Rain (mm)
----11032------62-1-14-------------12
Temp. °C242525252526252526262928283131283233283030262626252524232323242424252626
Feels °C (?)272828272628272728293129313433313435313233262728232325232224272526262526

Short Range Forecast: Moderate rain (total 16mm), heaviest on Mon night. Warm (max 26°C on Mon night, min 22°C on Sun morning). Wind will be generally light.

Days 3-6 Weather Summary Light rain (total 9mm), mostly falling on Thu night. Warm (max 33°C on Fri night, min 24°C on Thu night). Winds increasing (light winds from the WSW on Wed morning, fresh winds from the WNW by Thu night).

Days 6-9 Weather Summary Light rain (total 5mm), mostly falling on Sat night. Warm (max 30°C on Sat afternoon, min 23°C on Sun night). Wind will be generally light.

Long Range Forecast: Light rain (total 3mm), mostly falling on Thu afternoon. Warm (max 26°C on Thu afternoon, min 23°C on Tue morning). Wind will be generally light.

  • 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 12 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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