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Surf Forecasts:

Diamond Street surfForecast / CAL – San Diego County / USA

information circle12 Day Weather and Surf, issued 9 pm Friday 21 Nov 2025 PST
Forecast update in hr  min  s Forecast update imminent
Diamond Street surf forecast is for near shore open water. Breaking waves will often be smaller at less exposed spots.
Today's Diamond Street sea temperature is
17.4° C
 (Which is slightly warmer than usual)

Best Forecast Surf Conditions for Diamond Street this week:

The surf forecast for Diamond Street over the next 12 days: The first swell (rated 1 star or higher) is forecast to arrive on Saturday (Nov 22) at 4AM. The primary swell is predicted to be 0.8m and 13s period with a secondary swell of 0.4m and 15s. The wind is predicted to be glassy as the swell arrives.

The most powerful waves expected at Diamond Street in the next 12 days are 2.3m 9s and forecast to arrive on Saturday (Nov 29) at 4AM. Winds are predicted to be onshore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 0.4m 3s period and expected on Saturday (Nov 22) at 1AM.

Wave TypeTime (PST) & Date Wave Height & Period
Next good surf (1 star+) 4AM (Sat 22nd Nov)2.5ft (0.8m) 13s
Best Surf 1PM (Sat 22nd Nov)3ft (0.9m) 15s
Most Powerful 4AM (Sat 29th Nov)7.5ft (2.3m) 9s

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

Updates in  hr  min  s Forecast update imminent 
12 DaysHourly
Print Table

Short Range Forecast Mostly dry. Very mild (max 19°C on Sat morning, min 15°C on Sun night). Wind will be generally light.

Days 3-6 Weather Summary Mostly dry. Warm (max 23°C on Wed morning, min 16°C on Mon night). Wind will be generally light.

Saturday
22
Sunday
23
Monday
24
Tuesday
25
Wednesday
26
Thursday
27
Fri
28
NightAMPMNightAMPMNightAMPMNightAMPMNightAMPMNightAMPMNightAMPM
Rating
(10 max)
1
2
2
2
1
1
2
2
1
1
2
1
1
1
0
1
1
0
1
0
0
Swell
Height Map
See all maps
Wave Height (m) & direction (?)
0.9
W
0.8
W
0.9
WNW
0.8
WNW
0.6
W
0.7
WNW
0.7
WNW
0.7
WNW
0.9
WNW
0.6
W
0.5
W
0.5
W
0.6
WNW
0.6
W
0.5
W
0.4
WNW
0.4
SW
0.4
SW
0.4
SW
0.3
WNW
0.4
WNW
Period(s) (?)131214141317161615151414101313121414141817
Wave
Graph
(?)Metric surfscale
Energy kJ (?)2891803502431213002632563701591071047212585494746476392
Wind
(km/h)
20
NE
15
ENE
5
E
5
W
10
S
10
W
0
WSW
5
SW
10
W
5
NNW
5
NW
15
NW
5
NE
5
NE
10
NW
5
NE
0
SW
10
NNW
5
WNW
5
SW
10
SW
Wind State (?)
onshore
cross-onshore
cross-shore
cross-offshore
offshore
glassy
cross-
off		offoffglasscrossonglassglasscross-
on		crossglasscrosscross-
off		glasscrossglassglasscrossglasscross-
on		cross-
on
High Tide
/ height (m)
10:27PM
1.08
9:00AM
1.80
11:15PM
1.03
9:31AM
1.75
12:14AM
1.00
10:07AM
1.67
1:26AM
1.00
10:51AM
1.57
2:39AM
1.06
11:50AM
1.45
3:28AM
1.16
1:14PM
1.32
4:02AM
1.30
2:50PM
1.23
Low Tide
/ height (m)
2:54AM
0.78
4:53PM
-0.06
3:18AM
0.84
5:36PM
-0.01
3:45AM
0.89
6:26PM
0.05
4:24AM
0.95
7:20PM
0.09
5:53AM
1.01
8:16PM
0.13
8:10AM
0.99
9:10PM
0.17
9:53AM
0.83
Saturday
22
Sunday
23
Monday
24
Tuesday
25
Wednesday
26
Thursday
27
Fri
28
Sunrise-6:24--6:26--6:26--6:26--6:28--6:28--6:30-
Sunset--4:44--4:44--4:44--4:43--4:43--4:43--4:43
cloud
cloud
cloud
clear
clear
clear
clear
clear
clear
clear
clear
clear
clear
part cloud
cloud
cloud
cloud
part cloud
part cloud
clear
clear
Rain (mm)
---------------------
Temp. °C171919181717161616161918192321212121191917
Feels °C (?)131617161516171615151716172017181819161716
  • 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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Quiksilver Teams Up With PrimaLoft® For World’s First Thermal Layering System for a Wetsuit.

Feel that? If you are in the northern hemisphere, you will have had that first bite of winter. The lick of a frost, the chill of a cold offshore breeze and the sound of winter swells pounding the shores. If you are near the mountains, your favourite jackets, gloves, and footwear might get dusted off and prepped for battle. And in that beautiful Venn diagram, you will find PrimaLoft. They have spent over 40 years developing innovative insulations that have powered your warmest winter gear. In t

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The surf report / weather widget below is available to embed on third party websites free of charge and provides a summary of our Diamond Street 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.

View detailed surf forecast for Diamond Street at:
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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 12 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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