Diamond Street Surf Break

Lat Long: 32.80° N 117.26° W

Diamond Street Surf Forecast and Surf Report

Issued: 4 pm 13 Aug 2026 (local time)

Forecast update in  hr  min

Today's Diamond Street sea temperature is
23.9° C
3.8° 

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


Diamond Street surf forecast from 14 Aug 2026:

  • Best quality surf: Friday 14 Aug, 5AM (local time) - 2.5ft (0.8m), 15s period, SW swell with glassy winds.
  • Most powerful swell: Saturday 15 Aug, 2AM (local time) - 3.5ft (1.1m), 17s period, SW swell with 742 kJ wave energy.
  • Next surfable swell (1★+): Friday 14 Aug, 5AM (local time) - 2.5ft (0.8m), 15s period with SW swell.

Best Forecast Surf Conditions for Diamond Street this week:

The surf forecast for Diamond Street over the next 16 days: The first swell (rated 1 star or higher) is forecast to arrive on Friday (Aug 14) at 5AM. The primary swell is predicted to be 0.8m and 15s period with a secondary swell of 0.4m and 20s. The wind is predicted to be glassy as the swell arrives.

The most powerful waves expected at Diamond Street in the next 16 days are 1.1m 17s and forecast to arrive on Saturday (Aug 15) at 2AM. Winds are predicted to be cross-shore at the time the swell arrives.

Wave TypeTime (PDT) & Date Wave Height & Period
Next good surf (1 star+) 5AM (Fri 14th Aug)2.5ft (0.8m) 15s
Best Surf 5AM (Fri 14th Aug)2.5ft (0.8m) 15s
Most Powerful 2AM (Sat 15th Aug)3.5ft (1.1m) 17s

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


Short Range Forecast

Mostly dry. Warm (max 21°C on Thu afternoon, min 20°C on Thu night). Wind will be generally light.

Days 5-7 Weather Summary

Mostly dry. Warm (max 23°C on Mon afternoon, min 20°C on Sun night). Wind will be generally light.

Thu
13
Friday
14
Saturday
15
Sunday
16
Monday
17
Tuesday
18
Wednesday
19
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
Rating
(10 max)
0
1
0
1
2
0
1
1
0
0
1
0
0
1
0
0
0
0
0
1
Swell
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Wave
Height (m)
Direction
Period (s)
0.8
SW
16
0.8
SW
15
0.6
SW
18
0.6
SW
18
1.1
SW
17
0.9
SW
16
1.1
SW
16
1.1
SW
16
1
SW
15
0.9
SW
14
0.9
SW
14
0.8
SW
14
0.8
SW
14
0.8
SW
14
0.6
SW
16
0.5
SW
17
0.8
SW
15
0.8
SW
16
0.8
SW
16
0.7
SW
15
Wave Graph
Metric surfscale
Energy kJ
344
273
263
255
742
432
560
546
444
350
350
297
248
238
208
144
255
287
291
217
Wind (km/h)
10
WSW
5
WNW
10
W
15
W
10
NW
15
WNW
15
NW
15
NW
15
WNW
20
WNW
10
NW
15
WNW
15
WNW
10
WNW
10
SSW
15
SSW
15
S
20
SSW
15
SW
10
SSW
Wind State
on
cross-on
on
cross-on
cross
cross-on
cross-on
cross-on
cross-on
cross-on
cross
cross-on
cross-on
cross-on
cross-on
cross-on
cross-on
cross-on
cross-on
cross-on
High Tide
10:18PM2.01m
11:17AM1.59m
11:01PM1.82m
11:51AM1.62m
11:44PM1.58m
12:25PM1.62m
00:32AM1.32m
1:00PM1.58m
1:30AM1.08m
1:42PM1.53m
3:05AM0.90m
2:35PM1.47m
Low Tide
4:30PM0.35m
5:17AM-0.20m
5:17PM0.32m
5:49AM-0.03m
6:06PM0.34m
6:19AM0.18m
6:59PM0.38m
6:46AM0.39m
8:01PM0.43m
7:11AM0.60m
9:23PM0.46m
7:28AM0.78m
11:09PM0.42m
cloud
part cloud
clear
clear
clear
part cloud
cloud
part cloud
clear
clear
clear
clear
clear
clear
clear
clear
clear
clear
part cloud
part cloud
<span class="translation_missing" title="translation missing: en.weather_tables.sunrise">Sunrise</span>
6:11
6:11
6:11
6:13
6:13
6:13
<span class="translation_missing" title="translation missing: en.weather_tables.sunset">Sunset</span>
7:36
7:35
7:34
7:32
7:31
7:30
7:30
 mm
Temp °C
21
21
21
21
20
20
20
20
21
21
21
22
23
22
22
22
21
21
21
21
Feels °C
21
22
21
21
20
20
20
19
21
20
21
22
22
23
22
22
22
19
20
22
  • 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 Street Surf forecast

The above surf forecast table for Diamond Street provides essential information for determining whether the surfing conditions will be good over the next 16 days. A general guide to surfing at Diamond Street can be found by selecting the local surf guide option on the grey menu. Our Diamond Street 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 Street) 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 Street 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 Street is 9 km (6 miles) from San Diego. If you plan a vacation in San Diego County, look for hotels and other accommodation in San Diego. San Diego has rooms for a wide range of budgets as well as car hire and transport links.

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