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Surf Forecasts:

Diamond Street surfForecast / CAL – San Diego County / USA

information circle12 Day Weather and Surf, issued 3 am Wednesday 07 Jan 2026 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
16.9° C
 (Which is 1.8°C warmer than normal for this time of year)

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 Wednesday (Jan 07) at 7AM. The primary swell is predicted to be 0.8m and 11s period with a secondary swell of 0.2m and 13s. The wind is predicted to be cross-offshore as the swell arrives.

The most powerful waves expected at Diamond Street in the next 12 days are 2.1m 9s and forecast to arrive on Thursday (Jan 08) at 1PM. Winds are predicted to be cross-onshore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 0.4m 4s period and expected on Wednesday (Jan 07) at 7AM.

Wave TypeTime (PST) & Date Wave Height & Period
Next good surf (1 star+) 7AM (Wed 7th Jan)2.5ft (0.8m) 11s
Best Surf10PM (Thu 8th Jan)5ft (1.6m) 9s
Most Powerful 1PM (Thu 8th Jan)7ft (2.1m) 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 Light rain (total 2mm), mostly falling on Wed morning. Very mild (max 18°C on Fri afternoon, min 13°C on Thu night). Winds increasing (calm on Wed morning, fresh winds from the WNW by Thu morning).

Days 3-6 Weather Summary Mostly dry. Warm (max 23°C on Mon morning, min 15°C on Sat morning). Wind will be generally light.

Wednesday
07
Thursday
08
Friday
09
Saturday
10
Sunday
11
Monday
12
Tuesday
13
AMPMNightAMPMNightAMPMNightAMPMNightAMPMNightAMPMNightAMPMNight
Rating
(10 max)
0
0
0
0
0
3
2
1
2
1
0
1
1
0
1
2
0
2
2
1
2
Swell
Height Map
See all maps
Wave Height (m) & direction (?)
0.8
W
0.8
W
0.4
WNW
1.7
W
2
W
1.5
W
0.5
W
0.5
W
0.6
W
0.5
W
0.5
W
0.4
SW
0.4
SW
0.4
SW
0.4
SW
0.5
W
0.7
WNW
0.9
WNW
0.8
WNW
0.8
WNW
0.8
WNW
Period(s) (?)111011899161615141413131312181716151414
Wave
Graph
(?)Metric surfscale
Energy kJ (?)1491383739666435613212916810710660434240165286416316280273
Wind
(km/h)
5
SSE
10
W
15
W
20
WNW
25
NW
5
E
10
ENE
15
NNW
10
ENE
10
NE
20
NNW
10
ENE
10
NNE
10
NW
10
ENE
10
NE
15
NW
5
E
5
N
10
NW
5
N
Wind State (?)
onshore
cross-onshore
cross-shore
cross-offshore
offshore
glassy
crosscross-
on		oncross-
on		cross-
on		cross-
off		offcrossoffoffcrossoffcross-
off		crossoffoffcrossoffglasscross-
on		glass
High Tide
/ height (m)
11:20AM
1.57
12:57AM
1.34
12:12PM
1.30
1:45AM
1.37
1:17PM
1.05
2:36AM
1.40
2:54PM
0.85
3:28AM
1.44
5:13PM
0.80
4:20AM
1.49
6:57PM
0.87
5:08AM
1.55
7:45PM
0.94
Low Tide
/ height (m)
6:32PM
-0.04
6:55AM
0.62
7:10PM
0.17
8:17AM
0.61
7:48PM
0.37
9:56AM
0.52
8:30PM
0.55
11:28AM
0.37
9:26PM
0.69
12:29PM
0.20
10:35PM
0.77
1:12PM
0.06
11:38PM
0.80
Wednesday
07
Thursday
08
Friday
09
Saturday
10
Sunday
11
Monday
12
Tuesday
13
Sunrise6:52--6:52--6:52--6:52--6:52--6:52--6:50--
Sunset-4:58--4:59--5:00--5:00--5:00--5:01--5:02-
rain showers
clear
clear
clear
clear
clear
clear
clear
clear
clear
clear
clear
clear
clear
clear
clear
clear
clear
clear
clear
clear
Rain (mm)
2--------------------
Temp. °C161615161615171814202017222219232220222121
Feels °C (?)15141210101213139151412171815181717181618
  • 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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Latest Updates

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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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