Big Rock Surf Break

Lat Long: 32.82° N 117.28° W

Big Rock Surf Forecast and Surf Report

Issued: 4 pm 11 Aug 2026 (local time)

Forecast update in  hr  min

Today's Big Rock sea temperature is
24.1° C
4.1° 

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


Big Rock surf forecast from 12 Aug 2026:

  • Most powerful swell: Saturday 15 Aug, 2AM (local time) - 3.5ft (1.1m), 17s period, SW swell with 742 kJ wave energy.

Best Forecast Surf Conditions for Big Rock this week:

The most powerful waves expected at Big Rock 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-onshore at the time the swell arrives.

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

Table - best surf conditions forecast for Big Rock over the next 16 days.


The Lowdown

Alright folks, Rusty here. Let’s break down what’s on the menu for the next couple of weeks. To be straight with you, it’s a pretty flat and quiet run. We’ve got a lot of small, weak swell and most of the time the conditions are just poor. There’s a noticeable gap of nothing good for the first several days, and then we’ll get a little tease of something slightly better much later on.

The forecast starts with a real dud. From Tuesday, 11 August through to at least Friday, 22 August, the surf is almost non-existent. The swell is tiny, mostly around 2ft to 3ft, and the energy just isn’t there. The combined energy of all swells is mostly in the low to mid hundreds (290 to 498), which is weak. The wind is often offshore or light, but the swell is just too small to do anything with. The water temperature at Big Rock is a whopping 75°, which is 7° warmer than normal – that’s very unusual for this time of year.

Saturday, 15 August, finally shows a little pulse. The morning has a 3ft swell from the southwest with a 16-second period, pushing the combined energy to 565 – still moderate, but a step up. The wind is offshore from the WNW at 9 mph, so it’ll be clean. It’s still only marginal, and the tide might be a factor, but it’s the first real chance to get wet. The afternoon sees a 4ft southwest swell, with the energy climbing to 595. The wind stays offshore from the west at 9 mph. It’s not firing, but it’s the best of a pretty average bunch so far.

Things stay mostly poor through the next week, with a few more marginal windows. The small pulse of slightly better energy sneaks in around Wednesday, 26 August. The morning sees a 3ft swell from the southwest with a 16-second period, and the combined energy hits 533. The wind is cross-on from the WNW at 9 mph, so it’ll be a little choppy. The afternoon is the real standout: a 3ft southwest swell with a 16-second period, and the combined energy jumps to 687 – the strongest reading we’ve seen. The wind is lighter, cross-on from the NW at 6 mph, so it’s only a light cross-onshore breeze. It’s still marginal, but given the long stretch of nothing, this is your best bet. It’s a reef break, so that long-period southwest groundswell will wrap in nicely, and the offshore direction is a good match for the optimum west swell direction. Just keep in mind, this is a couple of weeks out, so it’s promising but not locked in.

Big Rock is an advanced reef break, and it’s fairly consistent but can be inconsistent. Crowds are often a thing here, so if you’re heading out for that Wednesday afternoon session, expect some company. For the rest of the period, it’s honestly more of a kitesurfing setup than a paddle surf one, given the bumpy conditions and small swell.

Rusty.

Short Range Forecast

Mostly dry. Warm (max 22°C on Tue afternoon, min 20°C on Thu night). Wind will be generally light.

Days 5-7 Weather Summary

Mostly dry. Warm (max 22°C on Mon morning, min 19°C on Fri night). Wind will be generally light.

Tue
11
Wednesday
12
Thursday
13
Friday
14
Saturday
15
Sunday
16
Monday
17
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
0
1
0
0
1
1
0
2
1
1
2
0
0
0
0
0
0
Swell
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Wave
Height (m)
Direction
Period (s)
0.6
SW
18
0.6
SW
18
0.6
SW
17
0.8
SW
16
0.7
SW
16
0.7
SW
16
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
1
SW
14
1
SW
14
0.9
SW
14
0.8
SW
14
0.8
SW
14
Wave Graph
Metric surfscale
Energy kJ
197
249
179
310
251
245
344
273
263
255
742
432
560
619
438
404
404
346
289
281
Wind (km/h)
15
W
10
WNW
15
W
15
W
10
W
10
WSW
10
W
5
WNW
15
WNW
15
WNW
10
NW
10
WNW
15
WNW
10
NNW
15
W
15
WNW
10
NW
15
WNW
15
WNW
10
NW
Wind State
on
cross-on
on
on
on
cross-on
on
on
on
on
cross-on
on
cross-on
cross-on
on
on
cross-on
on
cross-on
cross-on
High Tide
8:45PM2.12m
10:12AM1.39m
9:31PM2.07m
10:44AM1.46m
10:14PM1.94m
11:17AM1.52m
10:58PM1.76m
11:51AM1.56m
11:43PM1.52m
12:24PM1.56m
00:31AM1.27m
1:01PM1.54m
1:34AM1.04m
Low Tide
2:30PM0.57m
3:50AM-0.36m
3:19PM0.47m
4:25AM-0.28m
4:07PM0.40m
4:58AM-0.16m
4:55PM0.37m
5:30AM0.02m
5:45PM0.38m
5:59AM0.22m
6:41PM0.41m
6:27AM0.42m
7:47PM0.45m
part cloud
clear
part cloud
part cloud
cloud
cloud
cloud
part cloud
clear
clear
clear
clear
clear
clear
part cloud
clear
clear
clear
clear
clear
<span class="translation_missing" title="translation missing: en.weather_tables.sunrise">Sunrise</span>
6:09
6:09
6:11
6:11
6:11
6:13
<span class="translation_missing" title="translation missing: en.weather_tables.sunset">Sunset</span>
7:37
7:37
7:36
7:35
7:34
7:32
7:31
 mm
Temp °C
22
22
22
22
21
21
21
20
21
20
20
21
21
20
21
21
21
22
22
22
Feels °C
22
23
22
22
22
22
21
20
21
19
19
21
20
19
21
19
21
21
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 Big Rock Surf forecast

The above surf forecast table for Big Rock provides essential information for determining whether the surfing conditions will be good over the next 16 days. A general guide to surfing at Big Rock can be found by selecting the local surf guide option on the grey menu. Our Big Rock 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 (Big Rock) 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 Big Rock 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.

Big Rock is 11 km (7 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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