
Surf Forecasts:
Big Rock surf forecast from 1 Aug 2026:
- Best quality surf: Sunday 2 Aug, 2AM (local time) - 2ft (0.6m), 13s period, SW swell with glassy winds.
- Most powerful swell: Saturday 8 Aug, 2AM (local time) - 2.5ft (0.7m), 18s period, SW swell with 312 kJ wave energy.
- Next surfable swell (1★+): Sunday 2 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 Sunday (Aug 02) at 2AM. The primary swell is predicted to be 0.6m and 13s period with a secondary swell of 0.7m and 10s. 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 0.7m 18s and forecast to arrive on Saturday (Aug 08) at 2AM. Winds are predicted to be cross-onshore at the time the swell arrives.
| Wave Type | Time (PDT) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | 2AM (Sun 2nd Aug) | 2ft (0.6m) 13s |
| Best Surf | 2AM (Sun 2nd Aug) | 2ft (0.6m) 13s |
| Most Powerful | 2AM (Sat 8th Aug) | 2.5ft (0.7m) 18s |
Table - best surf conditions forecast for Big Rock over the next 16 days.
The Lowdown
Alright folks, Rusty here. Let’s have a look at what’s cookin’ for the next couple of weeks.
First up, we’re looking at Big Rock. This is a solid reef setup, but I gotta be straight with you – the next 16 days look pretty bleak. The water is sitting at 75°, which is a whopping 7° warmer than usual for this time of year. That’s a real anomaly, feels like bath water out there.
We’re starting off with a gap. There’s no real surf on offer right from the get-go. The first few days are a write-off with poor conditions. Saturday the 1st has a small 3ft swell from the SW, but it’s only 13 seconds period and the wind is on it, making it a mess. The combined swell energy is weak, at only 336. It’s just not happening.
We slide through Sunday the 2nd and Monday the 3rd, still nothing. Swell drops to 2ft, wind is mostly light and cross-onshore. The energy is barely a whisper, sitting around 160-208. It’s flat out frustrating.
The entire first week is a bust. Tuesday the 4th through to Friday the 7th, the swell hovers around 1ft to 2ft, and the wind never gets clean. The energy is still weak, in the 130-180 range. Then on Friday the 7th we get a glimpse of a longer period, 19 seconds, but the swell is only 2ft and the wind is cross-onshore. The energy picks up a bit to 388, but it’s still not enough to get excited about.
Saturday the 8th and Sunday the 9th are a little bit better, with the swell bumping up to 2ft and the energy hitting 366 and 349. The wind is still cross-onshore, but light. The forecast calls it “marginal.” Honestly, it’s not worth paddling out for.
The second week doesn’t offer much hope either. From Monday the 10th onwards, the swell stays small, mostly 1ft to 2ft. The period is all over the place – from 13 seconds up to 20 seconds – but the energy is still in the moderate range, never breaking past 473. The wind is mostly light and onshore or cross-onshore. We get a few more “marginal” tags on the 11th, 15th, and 16th, but it’s all the same story: small, weak, and unclean.
There are no standouts in this window. The best day on paper is Saturday the 15th, with a 3ft SW swell, 16-second period, and light offshore wind. The energy is 442, which is the highest we see. But it’s still a very small wave, and with that long period it’s going to be fat and slow at this reef. It’s a long-range call, so don’t hold your breath.
To be honest, the whole 16-day run is a blank. The energy is weak, the swell is tiny, and the wind is never right. It’s a tough stretch for Big Rock.
Rusty, signing off.
Short Range ForecastMostly dry. Warm (max 23°C on Sun morning, min 20°C on Sat morning). Wind will be generally light. | Days 4-6 Weather SummaryMostly dry. Warm (max 23°C on Wed morning, min 20°C on Wed night). Wind will be generally light. | ||||||||||||||||||||
Saturday 1 | Sunday 2 | Monday 3 | Tuesday 4 | Wednesday 5 | Thursday 6 | Friday 7 | |||||||||||||||
AM | PM | Night | AM | PM | Night | AM | PM | Night | AM | PM | Night | AM | PM | Night | AM | PM | Night | AM | PM | Night | |
Swell Height Map | |||||||||||||||||||||
Wave Height (m) Direction Period (s) | SW 13 | SW 13 | SW 13 | SW 13 | SW 13 | SW 13 | SW 13 | SW 13 | SW 16 | SW 15 | WSW 15 | SW 14 | WSW 14 | SW 14 | SW 14 | SW 13 | SW 13 | SW 13 | SSW 19 | SW 19 | SW 18 |
Wave Graph | |||||||||||||||||||||
261 | 183 | 142 | 111 | 108 | 130 | 100 | 102 | 72 | 113 | 86 | 167 | 134 | 96 | 155 | 108 | 108 | 112 | 248 | 173 | 312 | |
Wind (km/h) | |||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | on | cross-on | glassy | on | on | on | cross-on | on | on | on | on | on | on | on | glassy | cross-on | cross-on | cross-on | cross-on | cross-on | cross-on |
High Tide | 12:01PM1.36m | 11:17PM1.58m | 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 | ||||||||
Low Tide | 5:22PM0.59m | 5:59AM0.09m | 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 | ||||||||
6:01 | — | — | 6:03 | — | — | 6:03 | — | — | 6:03 | — | — | 6:05 | — | — | 6:05 | — | — | 6:05 | — | — | |
— | 7:46 | — | — | 7:46 | — | — | 7:45 | — | — | 7:45 | — | — | 7:44 | — | — | 7:43 | — | — | 7:42 | — | |
mm | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
Temp °C | 21 | 21 | 21 | 23 | 23 | 22 | 22 | 23 | 22 | 22 | 22 | 21 | 23 | 22 | 21 | 21 | 22 | 21 | 22 | 22 | 21 |
Feels °C | 22 | 21 | 22 | 24 | 23 | 23 | 24 | 23 | 23 | 23 | 22 | 22 | 24 | 22 | 21 | 21 | 22 | 22 | 22 | 22 | 22 |
Swell 1 Height (m) Direction Period (s) | SW 13 | SW 13 | SSW 10 | SW 13 | W 7 | W 9 | W 6 | W 6 | W 6 | W 6 | W 6 | SW 14 | WSW 14 | SW 14 | SW 14 | SW 13 | SW 13 | SW 13 | SW 13 | SW 13 | SW 18 |
261 | 183 | 80 | 111 | 35 | 76 | 40 | 36 | 23 | 16 | 16 | 167 | 134 | 96 | 155 | 108 | 108 | 106 | 136 | 132 | 312 | |
Swell 2 Height (m) Direction Period (s) | W 7 | W 7 | SW 13 | W 7 | SW 13 | SW 13 | SW 13 | SW 13 | SW 12 | SW 15 | WSW 15 | W 5 | W 5 | SW 11 | W 5 | W 5 | WNW 5 | SW 18 | SSW 19 | SW 19 | WSW 12 |
35 | 37 | 142 | 24 | 108 | 130 | 100 | 100 | 72 | 113 | 86 | 14 | 8 | 20 | 12 | 13 | 9 | 112 | 248 | 173 | 98 | |
Swell 3 Height (m) Direction Period (s) | S 9 | SW 10 | W 8 | SSW 9 | SW 8 | SW 18 | SW 16 | WSW 16 | SW 16 | SW 12 | SW 12 | S 9 | SSW 12 | S 9 | S 9 | SW 20 | SW 20 | W 5 | W 5 | S 9 | SSW 9 |
40 | 51 | 43 | 30 | 17 | 79 | 68 | 102 | 66 | 53 | 50 | 6 | 15 | 6 | 6 | 60 | 64 | 4 | 4 | 6 | 16 | |
Wind waves Height (m) Direction Period (s) | — | — | — | — | — | — | — | — | — | — | — | — | — | W 5 | — | — | — | — | — | W 5 | — |
— | — | — | — | — | — | — | — | — | — | — | — | — | 14 | — | — | — | — | — | 4 | — | |
Nearest Offshore or Glassy | |||||||||||||||||||||
Distance (km) | 18 | 18 | 0 | 18 | 18 | 10 | 18 | 18 | 10 | 18 | 18 | 13 | 18 | 18 | 0 | 18 | 18 | 5 | 127 | 295 | 6 |
Best forecast wave conditions in San Diego County | |||||||||||||||||||||
Best forecast wave conditions in United States | |||||||||||||||||||||
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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.











