Big Rock Surf Break

Lat Long: 32.82° N 117.28° W

Big Rock Surf Forecast and Surf Report

Issued: 4 pm 25 Jul 2026 (local time)

Forecast update in  hr  min

Today's Big Rock sea temperature is
23.0° C
3.4° 

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 26 Jul 2026:

  • Best quality surf: Thursday 30 Jul, 11PM (local time) - 5.5ft (1.7m), 14s period, SSW swell with glassy winds.
  • Most powerful swell: Thursday 30 Jul, 11PM (local time) - 5.5ft (1.7m), 14s period, SSW swell with 1,127 kJ wave energy.
  • Next surfable swell (1★+): Thursday 30 Jul, 11PM (local time) - 5.5ft (1.7m), 14s period with SSW 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 Thursday (Jul 30) at 11PM. The primary swell is predicted to be 1.7m and 14s period with a secondary swell of 0.5m and 8s. 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 1.7m 14s and forecast to arrive on Thursday (Jul 30) at 11PM. Winds are predicted to be glassy at the time the swell arrives.

Wave TypeTime (PDT) & Date Wave Height & Period
Next good surf (1 star+)11PM (Thu 30th Jul)5.5ft (1.7m) 14s
Best Surf11PM (Thu 30th Jul)5.5ft (1.7m) 14s
Most Powerful11PM (Thu 30th Jul)5.5ft (1.7m) 14s

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


The Lowdown

Alright, grab a coffee and listen up, this is Rusty.

First up, it’s pretty quiet for a few days. The swell is there, but it’s just not got the quality to get excited about for a while. The water is a real standout though - it’s sitting at a very unusual 73°F which is 6°F warmer than normal for this time of year. That’s a full-on tropical bath, so if you’re going in, you won’t need a wetsuit.

Now, let’s talk about the one spot that’s got our attention. The real highlight of this whole 16-day window is the window around the 27th of July into the 28th at Big Rock. This is an advanced reef break that needs an east wind to be clean, and we’re looking at cross-shore and cross-onshore breezes, but the swell is the story. On Monday morning the 27th, we’ve got a moderate 4ft SW groundswell with a period of 18 seconds. That long period gives it real shape and energy, and the combined energy is sitting at a solid 1003 (moderate energy). It’s not huge, but it’s enough to get your blood pumping. Tuesday morning the 28th bumps up a touch to 4ft from the SW, with a period of 17 seconds and energy at 1055. This is the best of the run. It’s a bit small for the experts who want it overhead, but for the strong intermediate crew, it’s going to be fun. The wind is a bit cross-onshore, so it won’t be glassy, but it’s manageable. The crowds are a thing here though - it’s often busy, so get there early.

The rest of the first week is just marginal. The swell hangs around through the 31st of July, pushing up to 6ft on the Friday morning from the SSW, but with a shorter period of 13 seconds, it’s not as clean. The wind flicks offshore on the 31st, which is a positive, but the wave quality is still just ‘marginal’. It’s not a write-off, just not the best of the window.

After that, from the 2nd of August onwards, it’s a real drought. The swell drops right off to 3ft and then stays below 2ft for a solid week. The models are calling it “poor surf conditions” and the scores are a big fat zero. That’s a full week of flatness, so don’t bother checking the cam until around the 9th of August, but even then, it’s still tiny at 2ft. It’s a long stretch of nothing.

So, for the standout, it’s Monday the 27th and Tuesday the 28th of July at Big Rock. The swell is directional, the period is long, and it’s the only real window of energy. The rest is a waiting game.

Rusty.

Short Range Forecast

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

Days 5-7 Weather Summary

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

Sat
25
Sunday
26
Monday
27
Tuesday
28
Wednesday
29
Thursday
30
Friday
31
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
Rating
(10 max)
1
3
2
2
2
3
2
2
2
2
3
2
1
2
1
2
4
2
1
2
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
21
1.1
SW
19
1
SW
19
1
SW
18
1.1
SW
18
1.2
SW
18
1
SW
16
1.1
SW
17
1.3
SW
17
1.3
SW
17
1.3
SSW
16
1.1
SW
16
1.1
SW
16
1.1
SW
16
1.5
SSW
14
1.6
SSW
14
1.7
SSW
14
1.7
SSW
13
1.6
SSW
13
1.6
SSW
13
Wave Graph
Metric surfscale
Energy kJ
513
945
716
609
694
901
511
717
951
908
864
644
644
573
849
975
1111
1028
919
775
Wind (km/h)
10
SW
5
WNW
15
SSW
10
WSW
10
S
15
SSW
10
SW
10
S
15
SSW
15
SW
10
S
15
SSW
15
SSW
5
S
10
SSW
10
SW
5
SW
10
W
15
WNW
10
WNW
Wind State
cross-on
on
cross
on
cross
cross
cross-on
cross
cross-on
cross-on
cross
cross
cross
cross
cross-on
cross-on
glassy
on
on
cross-on
High Tide
7:19PM1.70m
9:38AM1.10m
7:57PM1.78m
9:59AM1.13m
8:31PM1.83m
10:21AM1.16m
9:04PM1.87m
10:44AM1.20m
9:36PM1.87m
11:08AM1.25m
10:08PM1.82m
11:34AM1.30m
10:41PM1.73m
Low Tide
2:52AM-0.05m
1:41PM0.83m
3:22AM-0.11m
2:17PM0.77m
3:50AM-0.14m
2:51PM0.72m
4:17AM-0.16m
3:25PM0.67m
4:43AM-0.15m
4:01PM0.63m
5:08AM-0.10m
4:39PM0.61m
part cloud
part cloud
part cloud
part cloud
clear
clear
clear
clear
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>
5:58
5:58
5:58
6:00
6:01
6:01
<span class="translation_missing" title="translation missing: en.weather_tables.sunset">Sunset</span>
7:52
7:52
7:51
7:50
7:50
7:49
7:47
 mm
Temp °C
21
20
22
22
22
22
22
22
22
22
21
21
22
20
21
22
21
23
23
22
Feels °C
21
21
23
22
24
22
22
23
22
22
22
21
21
21
21
22
22
23
23
22
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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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