Diamond Beach Surf Break

Lat Long: 38.96° N 74.85° W

Diamond Beach 48 hour detailed Surf Forecast

Issued: 1 am 21 Sep 2026 (local time)

Forecast update in  hr  min

Today's Diamond Beach sea temperature is
23.5°C
3.1° 

Diamond Beach surf forecast is for near shore open water. Breaking waves will often be smaller at less exposed spots.


How big are the waves at Diamond Beach today (21 Sep):

  • Morning surf: Morning surf (21 Sep, local time) - 1.5ft (0.4m), 8s period with ESE swell.
  • Afternoon surf: Afternoon surf (21 Sep, local time) - 3.5ft (1.0m), 5s period with ENE swell.
  • Evening surf: Evening surf (21 Sep, local time) - 3.5ft (1.1m), 6s period with ENE swell.

The current surf forecast for Diamond Beach at 7AM is: 0.5m 8s primary swell from a East-southeast direction and 0.3m 4s secondary swell from a South direction, 0.7m 4s secondary swell from a Northeast direction (forecast issued at 01:00am September 21). The wind direction is predicted to be cross-offshore.

Time (EDT) & DateWave HeightWave Period
Morning (21 Sep)1.5ft (0.4m)8s
Afternoon (21 Sep)3.5ft (1.0m)5s
Evening (21 Sep)3.5ft (1.1m)6s

Table - waves today at Diamond Beach. (Swell directed towards the surf break)


Short Range Forecast

Heavy rain (total 24mm), heaviest during Tue night. Warm (max 20°C on Mon afternoon, min 16°C on Tue night). Winds increasing (moderate winds from the NNE on Mon morning, strong winds from the ENE by Wed night).

Monday
21
Tuesday
22
Wednesday
23
2 AM
5 AM
8 AM
11 AM
2 PM
5 PM
8 PM
11 PM
2 AM
5 AM
8 AM
11 AM
2 PM
5 PM
8 PM
11 PM
2 AM
5 AM
8 AM
11 AM
2 PM
5 PM
8 PM
11 PM
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
Swell
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Wave
Height (m)
Direction
Period (s)
0.5
ESE
8
0.5
ESE
8
0.4
ESE
8
0.8
NE
5
1
ENE
5
1.1
ENE
5
1
ENE
6
1.3
E
6
1.5
E
7
1.6
E
7
1.7
E
7
1.8
E
7
2
E
8
2
E
8
2
E
8
2.1
E
8
2
E
9
2.1
E
8
2.3
E
9
2.3
E
9
2.4
E
10
2.5
E
10
2.5
E
10
2.5
E
11
Wave Graph
Metric surfscale
Energy kJ
33
34
22
31
58
71
72
122
193
233
290
343
470
507
520
612
595
616
823
880
1041
1201
1327
1379
Wind (km/h)
10
W
25
NNE
25
NNE
25
NE
30
NE
30
ENE
30
ENE
30
ENE
35
ENE
35
ENE
40
ENE
45
ENE
40
ENE
45
ENE
45
ENE
45
ENE
45
ENE
50
ENE
45
ENE
45
ENE
45
NE
50
ENE
50
ENE
45
NE
Wind State
cross-off
cross-off
cross-off
cross-off
cross
cross
cross
cross-on
cross-on
cross
cross-on
cross-on
cross-on
cross
cross
cross
cross
cross
cross
cross
cross
cross
cross
cross
High Tide
4:49AM1.10m
5:10PM1.35m
5:46AM1.17m
6:04PM1.40m
6:36AM1.27m
6:51PM1.47m
Low Tide
10:39AM0.38m
11:25PM0.26m
11:31AM0.30m
00:09AM0.18m
12:19PM0.22m
thunderstorm
light rain
cloud
cloud
part cloud
cloud
cloud
cloud
cloud
light rain
light rain
light rain
light rain
light rain
light rain
light rain
light rain
light rain
light rain
cloud
cloud
cloud
cloud
cloud
<span class="translation_missing" title="translation missing: en.weather_tables.sunrise">Sunrise</span>
6:45
6:46
6:47
<span class="translation_missing" title="translation missing: en.weather_tables.sunset">Sunset</span>
6:58
6:57
6:54
 mm
1
1
1
1
1
1
1
4
5
5
3
2
Temp °C
23
21
19
19
20
19
20
20
20
19
19
18
18
17
16
17
17
17
17
18
18
17
18
17
Feels °C
25
20
17
17
17
15
17
16
16
14
13
11
11
9
8
10
10
9
9
10
10
8
8
9
  • 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 

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.


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