
Surf Forecasts:
Big Rock surf forecast from 25 Jul 2026:
- Best quality surf: Saturday 25 Jul, 5AM (local time) - 3.5ft (1.0m), 21s period, SW swell with glassy winds.
- Most powerful swell: Friday 31 Jul, 8AM (local time) - 6ft (1.8m), 14s period, SSW swell with 1,321 kJ wave energy.
- Next surfable swell (1★+): Saturday 25 Jul, 5AM (local time) - 3.5ft (1.0m), 21s 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 Saturday (Jul 25) at 5AM. The primary swell is predicted to be 1.0m and 21s period with a secondary swell of 0.7m and 12s. 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 1.8m 14s and forecast to arrive on Friday (Jul 31) at 8AM. Winds are predicted to be cross-shore at the time the swell arrives.
| Wave Type | Time (PDT) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | 5AM (Sat 25th Jul) | 3.5ft (1.0m) 21s |
| Best Surf | 5AM (Sat 25th Jul) | 3.5ft (1.0m) 21s |
| Most Powerful | 8AM (Fri 31st Jul) | 6ft (1.8m) 14s |
Table - best surf conditions forecast for Big Rock over the next 16 days.
The Lowdown
Alright folks, Rusty here. I’ve been staring at the charts for our local slab, and it’s a bit of a mixed bag over the next couple of weeks. Let’s break it down.
We’re looking at a stretch of days where the surf is mostly just okay, nothing to write home about until we get a little bump of energy late in the first week. The water temp is sitting right about where it should be for this time of year.
The first real chance to get wet starts on Saturday morning, the 26th of July, at Big Rock. It’s a reef setup, so you need to know what you’re doing. We’ve got a solid 3 ft of swell rolling in from the SW, with a long period of 19 seconds. That’s proper groundswell energy, and the combined energy reading is a moderate 838. The wind is light and cross-shore, keeping things reasonably clean. It’s not going to be perfect, but it’s a start. The morning of the 27th of July pushes up to 4 ft from the SW with a period of 18 seconds, and the energy jumps to a strong 1025, but the wind swings to a gentle cross-onshore, so it’ll be a bit choppy. This pattern of so-so, cross-onshore wind continues through the week, with swell hovering around 3 ft to 5 ft. There’s no standout day here, but the best of a weak bunch is probably the afternoon of Thursday the 30th of July. We see 5 ft from the SSW with a period of 14 seconds, and the combined energy is a strong 1133. The wind is light, but it’s cross-onshore, so it’s not the cleanest. Crowds are often here, so expect company.
The real standout, the one you want to circle on your calendar, is Friday morning, the 31st of July. The swell is 6 ft from the SSW, with a period of 14 seconds, and the energy is a hefty 1318. The wind is light and offshore out of the WSW. That’s the key – offshore wind means the wave faces will be clean and peeling. This is a big, powerful reef wave, and at 6 ft, it’s going to be pushing into the intermediate to expert zone. For the experienced crew, this is your window. The energy drops off quickly after that, and by Saturday the 1st of August, we’re down to 5 ft and the wind is still onshore.
Then we hit the doldrums. From around Sunday the 2nd of August all the way through to the end of the forecast on the 9th of August, the swell drops out. We’re looking at tiny, gutless waves of 1 ft to 3 ft. The wind is mostly onshore or cross-onshore, so it’s going to be a washing machine out there. The combined energy readings are all in the weak to moderate range, with some days dropping to just 150. It’s pretty much a flat spell for us. That’s a long gap of about 8 days with nothing worth paddling for.
So, to sum it up: the only true highlight is that Friday morning, the 31st of July, at Big Rock. Get it while it’s good. The rest of the outlook is either marginal or just plain flat. Hang in there, the next pulse might show up on the charts.
Stay frothy,
Rusty
Short Range ForecastMostly dry. Warm (max 23°C on Sun afternoon, min 20°C on Fri night). Wind will be generally light. | Days 5-7 Weather SummaryMostly dry. Warm (max 22°C on Mon night, min 20°C on Tue night). Wind will be generally light. | ||||||||||||||||||
Saturday 25 | Sunday 26 | Monday 27 | Tuesday 28 | Wednesday 29 | Thursday 30 | ||||||||||||||
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 21 | SW 21 | SW 21 | SW 19 | SW 19 | SW 18 | SW 18 | SW 18 | SW 16 | SW 17 | SW 17 | SW 17 | SW 16 | SW 16 | SW 16 | SSW 16 | SSW 15 | SSW 14 | SSW 14 |
Wave Graph | |||||||||||||||||||
647 | 647 | 513 | 945 | 716 | 609 | 694 | 901 | 511 | 717 | 951 | 897 | 767 | 653 | 573 | 657 | 962 | 1106 | 1095 | |
Wind (km/h) | |||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | cross-on | cross-on | cross-on | on | cross | cross-on | cross | cross-on | cross-on | cross | cross-on | cross-on | cross | cross-on | cross-on | cross | cross-on | cross-on | cross |
High Tide | 9:14AM1.06m | 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 | |||||||
Low Tide | 2:19AM0.02m | 1:00PM0.87m | 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 | |||||||
— | 5:56 | — | — | 5:58 | — | — | 5:58 | — | — | 5:58 | — | — | 6:00 | — | — | 6:01 | — | — | |
— | — | 7:52 | — | — | 7:52 | — | — | 7:51 | — | — | 7:50 | — | — | 7:50 | — | — | 7:49 | — | |
mm | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
Temp °C | 20 | 22 | 22 | 21 | 22 | 23 | 22 | 22 | 22 | 22 | 22 | 22 | 21 | 21 | 21 | 21 | 21 | 22 | 21 |
Feels °C | 21 | 23 | 22 | 22 | 23 | 23 | 24 | 22 | 22 | 23 | 22 | 21 | 22 | 21 | 20 | 22 | 21 | 23 | 22 |
Swell 1 Height (m) Direction Period (s) | SW 21 | SW 21 | SW 21 | SW 19 | SW 19 | SW 18 | SW 18 | SW 18 | SW 16 | SW 17 | SW 17 | SW 17 | SW 16 | SW 16 | SW 16 | SSW 16 | SSW 15 | SSW 14 | SSW 14 |
647 | 647 | 513 | 945 | 716 | 609 | 694 | 901 | 511 | 717 | 951 | 897 | 767 | 653 | 573 | 657 | 962 | 1106 | 1095 | |
Swell 2 Height (m) Direction Period (s) | SSW 11 | W 7 | W 7 | W 7 | W 7 | W 7 | W 7 | W 8 | WNW 8 | W 7 | W 8 | W 8 | W 7 | W 8 | W 8 | S 14 | W 7 | W 7 | WNW 7 |
113 | 45 | 44 | 36 | 49 | 66 | 38 | 124 | 101 | 70 | 121 | 93 | 70 | 93 | 86 | 183 | 23 | 27 | 18 | |
Swell 3 Height (m) Direction Period (s) | W 7 | S 10 | SSW 10 | S 10 | SSW 11 | SSW 11 | SSW 11 | SSE 9 | SW 19 | S 8 | S 10 | SSE 14 | S 16 | S 14 | S 14 | W 7 | — | — | — |
43 | 50 | 31 | 48 | 73 | 46 | 47 | 17 | 299 | 6 | 8 | 21 | 188 | 103 | 196 | 38 | — | — | — | |
Wind waves Height (m) Direction Period (s) | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
— | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | |
Nearest Offshore or Glassy | |||||||||||||||||||
Distance (km) | 18 | 18 | 18 | 18 | 6 | 266 | 3 | 6 | 211 | 4 | 127 | 6 | 4 | 6 | 66 | 4 | 127 | 18 | 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.










