Big Rock Surf Break

Lat Long: 32.82° N 117.28° W

Big Rock Surf Forecast and Surf Report

Issued: 10 am 02 Aug 2026 (local time)

Forecast update in  hr  min

Today's Big Rock sea temperature is
23.7° C
4.0° 

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 3 Aug 2026:

  • Best quality surf: Monday 3 Aug, 2AM (local time) - 2ft (0.6m), 13s period, SW swell with glassy winds.
  • Most powerful swell: Saturday 8 Aug, 11PM (local time) - 3ft (0.9m), 16s period, SW swell with 371 kJ wave energy.
  • Next surfable swell (1★+): Monday 3 Aug, 2AM (local time) - 2ft (0.6m), 13s period with SW swell.

Best Forecast Surf Conditions for Big Rock this week:

The surf forecast for Big Rock over the next 16 days: The first swell (rated 1 star or higher) is forecast to arrive on Monday (Aug 03) at 2AM. The primary swell is predicted to be 0.6m and 13s period with a secondary swell of 0.6m and 9s. The wind is predicted to be glassy as the swell arrives.

The most powerful waves expected at Big Rock in the next 16 days are 0.9m 16s and forecast to arrive on Saturday (Aug 08) at 11PM. 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+) 2AM (Mon 3rd Aug)2ft (0.6m) 13s
Best Surf 2AM (Mon 3rd Aug)2ft (0.6m) 13s
Most Powerful11PM (Sat 8th Aug)3ft (0.9m) 16s

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


The Lowdown

Alright folks, Rusty here. Let’s talk about what’s on the menu for the next couple of weeks. I’ve got to be straight with you – this outlook is a tough one. We’re looking at a long stretch of small, weak surf and a lot of "poor surf conditions" flags. The main issue is that while we have a consistent, light offshore breeze from the West for much of the period, the swell is just too small and weak to get excited about. The water is sitting at a very warm 75°, which is running much warmer than normal for this time of year, so that’s a nice bonus for the skin, but the waves are the real story here.

The first week, from Sunday the 2nd of August through to the following Saturday, offers nothing recommendable. We’re dealing with tiny waves of 1ft to 2ft, mostly from the SW, with the combined energy reading in the low to mid hundreds (157 to 388). That’s weak sauce. The wind is often offshore, but the waves are just too small to hold any shape. Even the longer period swells (up to 19 seconds) can’t save this – the energy is just too low to push any decent face onto the reef.

We then hit a dead zone from Sunday the 9th through to Thursday the 13th. The swell stays tiny, the energy is still weak (252 to 356), and the wind starts to get a cross-on component, making things even choppier. It’s a blank run of about five days with no real surf to chase.

The first glimmer of hope comes at the tail end of the outlook. On Friday the 14th of August, we finally see a bump in the swell. The combined energy jumps to a strong 507 in the morning and 651 in the afternoon. Swell height is still only 2ft to 3ft, but that longer period of 18 seconds gives it a bit more punch. The wind stays light and offshore from the West, keeping the surface silky. Even then, the forecast is only calling it "marginal", so don’t expect a classic.

The standout window, if you can call it that, is the afternoon of Friday the 14th and Saturday morning the 15th of August. The energy is strong (651 and 515), the swell is just starting to push past 3ft, and the wind is perfectly offshore. For a shallow reef like Big Rock (WSW exposure), that long-period groundswell will be *very* long (18-16 seconds), which means the waves will be thick, powerful, and will likely hold up well on the reef. But that period is so long, it can make the sets a bit irregular. This is strictly for the advanced crew – the swell is not big enough for it to be a danger, but the reef setup and the long period mean you need to know what you’re doing. Crowds are "often" a problem here, so you’ll want to be early.

Beyond that, the following Sunday and Monday (16th and 17th) drop back down to poor, weak surf. So, if you’re patient, the 14th and 15th are your best bet, but it’s a long wait for a marginal window. This is a quiet period for the region.

Rusty.

Short Range Forecast

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

Days 4-6 Weather Summary

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

Sunday
2
Monday
3
Tuesday
4
Wednesday
5
Thursday
6
Friday
7
Saturday
8
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
Rating
(10 max)
0
0
2
0
0
0
0
0
0
0
0
0
0
0
1
0
0
1
1
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)
0.6
SW
13
0.6
SW
13
0.6
SW
13
0.6
SW
13
0.6
SW
12
0.4
SW
16
0.5
SW
15
0.4
WSW
15
0.6
SW
14
0.6
WSW
14
0.5
SW
14
0.6
SW
14
0.6
SW
13
0.6
SW
13
0.6
SW
13
0.6
SSW
19
0.5
SW
19
0.7
SW
18
0.6
SW
17
0.7
SW
16
0.9
SW
16
Wave Graph
Metric surfscale
Energy kJ
111
108
130
100
102
72
113
86
167
134
96
155
108
108
112
248
173
312
230
261
367
Wind (km/h)
10
W
15
W
5
W
10
W
15
W
5
W
10
W
15
W
5
W
15
WSW
15
W
5
WNW
10
WSW
10
W
5
SW
15
SW
10
W
10
SW
10
WSW
15
SW
5
SSW
Wind State
on
on
glassy
on
on
on
on
on
on
cross-on
on
cross-on
cross-on
on
cross-on
cross-on
on
cross-on
cross-on
cross-on
cross
High Tide
12:30PM1.41m
11:57PM1.40m
1:02PM1.47m
00:49AM1.18m
1:42PM1.53m
2:06AM0.96m
2:32PM1.58m
4:22AM0.83m
3:38PM1.65m
6:54AM0.89m
4:52PM1.74m
7:58AM1.00m
6:02PM1.87m
Low Tide
6:13PM0.58m
6:25AM0.24m
7:15PM0.55m
6:51AM0.40m
8:36PM0.51m
7:21AM0.57m
10:17PM0.39m
8:01AM0.72m
11:49PM0.20m
9:25AM0.85m
00:56AM-0.00m
11:16AM0.88m
1:47AM-0.18m
part cloud
clear
clear
clear
clear
clear
clear
clear
clear
part cloud
part cloud
clear
clear
clear
clear
clear
clear
clear
clear
clear
clear
<span class="translation_missing" title="translation missing: en.weather_tables.sunrise">Sunrise</span>
6:03
6:03
6:03
6:05
6:05
6:05
6:07
<span class="translation_missing" title="translation missing: en.weather_tables.sunset">Sunset</span>
7:46
7:45
7:45
7:44
7:43
7:42
7:40
 mm
Temp °C
22
22
21
23
23
21
22
22
21
22
22
21
22
22
21
21
22
21
23
22
22
Feels °C
23
22
22
24
23
22
22
22
21
22
22
22
23
22
22
22
22
21
24
21
23
  • 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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