
Surf Forecasts:
Big Rock surf forecast from 7 Jul 2026:
- Best quality surf: Saturday 11 Jul, 2AM (local time) - 3ft (0.9m), 15s period, SW swell with glassy winds.
- Most powerful swell: Tuesday 7 Jul, 11AM (local time) - 3.5ft (1.1m), 18s period, SW swell with 694 kJ wave energy.
- Next surfable swell (1★+): Saturday 11 Jul, 2AM (local time) - 3ft (0.9m), 15s 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 11) at 2AM. The primary swell is predicted to be 0.9m and 15s 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 1.1m 18s and forecast to arrive on Tuesday (Jul 07) at 11AM. Winds are predicted to be onshore at the time the swell arrives.
| Wave Type | Time (PDT) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | 2AM (Sat 11th Jul) | 3ft (0.9m) 15s |
| Best Surf | 2AM (Sat 11th Jul) | 3ft (0.9m) 15s |
| Most Powerful | 11AM (Tue 7th Jul) | 3.5ft (1.1m) 18s |
Table - best surf conditions forecast for Big Rock over the next 16 days.
Updates in hr min s Forecast update imminent
Alright folks, Rusty here. Let's have a look at what's comin' our way.
Well, it’s a bit of a slow burn, to be honest. For the first week or so, we’re looking at some pretty marginal conditions. The swell is hanging around, but it’s not really showing its teeth in a good way. The wave energy is moderate, fluctuating between about 362 and 882 (combined energy of all swells directed here). The trouble is the wind is mostly onshore or cross-onshore, which is just creating a bit of chop and messing up the surface. You'll see very little in the way of a proper clean face.
Let's get into the details. For Tuesday the 7th and Wednesday the 8th, we’ve got a long-period groundswell from the SW, around 3 ft, with periods between 16 and 18 seconds. That's a long period, which carries energy, but the light onshore wind will leave it bumpy. Not the best day to paddle out.
Thursday the 9th and Friday the 10th, the wind gets a bit stronger, especially Friday with a moderate breeze, and the swell drops a touch to 3 ft. The surface is going to feel rough, so I’d give it a miss.
We get a little window Saturday the 11th afternoon – the wind drops to light and it's a light cross-onshore, but the swell is still small at 3 ft and the period is dropping to 15 seconds. It's better than the morning, but still only marginal. This pattern of onshore or cross-onshore wind and weak swell just keeps on going through to about the 15th.
Then, hold on a sec. We've got a glimmer. There’s a bit of a pulse on the horizon. Looking toward the 18th and 19th of July, the swell starts to climb back up. On Sunday the 19th, we see a 3 ft SW groundswell with a 17-second period, and the wind looks favorable – light and onshore from the WSW in the afternoon, with a light breeze in the morning. The wave energy is building (846 in the afternoon). That's the best option in this whole outlook. The break is Big Rock (reef), a fairly consistent spot. The swell direction from the SW matches what the break likes. For advanced surfers only, but with the wind lining up, this is the standout. Get ready for that.
Before that, the 16-day window does have a gap of poor or marginal conditions from the start until around Friday the 18th morning, when things start to improve. The water temperature is about average for this time of year.
So, to sum it up: if you want a clean wave, don’t rush out this week. Let the winds settle. The best bet on the horizon is that Sunday the 19th at Big Rock – it’s a clean, long-period groundswell. It’s still a little while away, so keep an eye on the forecasts, but for now, that’s our best shot.
Rusty.
Short Range ForecastMostly dry. Warm (max 21°C on Wed afternoon, min 18°C on Tue morning). Wind will be generally light. | Days 4-6 Weather SummaryMostly dry. Warm (max 21°C on Fri afternoon, min 18°C on Fri night). Wind will be generally light. | ||||||||||||||||||||
Tuesday 7 | Wednesday 8 | Thursday 9 | Friday 10 | Saturday 11 | Sunday 12 | Monday 13 | |||||||||||||||
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 18 | SW 18 | SW 18 | SW 16 | SW 16 | SW 16 | SW 16 | SW 16 | SW 16 | SW 15 | SW 15 | SW 15 | SW 15 | SW 15 | SW 14 | SSW 14 | SSW 14 | SSW 14 | SSW 13 | SW 13 | SW 13 |
Wave Graph | |||||||||||||||||||||
694 | 460 | 375 | 527 | 521 | 527 | 432 | 421 | 489 | 322 | 309 | 309 | 314 | 318 | 288 | 362 | 367 | 232 | 225 | 142 | 183 | |
Wind (km/h) | |||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | on | on | on | on | on | on | cross | cross | cross | cross | cross-on | glassy | cross-on | cross-on | glassy | cross-on | on | glassy | on | on | glassy |
High Tide | 3:38PM1.47m | 4:01AM0.89m | 4:26PM1.60m | 6:00AM0.86m | 5:19PM1.74m | 7:32AM0.92m | 6:12PM1.89m | 8:33AM1.01m | 7:06PM2.02m | 9:21AM1.09m | 7:58PM2.13m | 10:03AM1.16m | 8:48PM2.18m | ||||||||
Low Tide | 8:29AM0.38m | 10:41PM0.51m | 9:14AM0.52m | 00:00AM0.28m | 10:12AM0.64m | 1:02AM0.03m | 11:20AM0.72m | 1:54AM-0.19m | 12:27PM0.74m | 2:42AM-0.36m | 1:29PM0.71m | 3:28AM-0.47m | 2:25PM0.66m | 4:11AM-0.50m | |||||||
5:47 | — | — | 5:47 | — | — | 5:48 | — | — | 5:48 | — | — | 5:48 | — | — | 5:48 | — | — | 5:50 | — | — | |
— | 8:00 | — | — | 8:00 | — | — | 8:00 | — | — | 7:59 | — | — | 7:59 | — | — | 7:59 | — | — | 7:59 | — | |
mm | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
Temp °C | 19 | 20 | 19 | 20 | 21 | 20 | 20 | 20 | 19 | 20 | 21 | 19 | 20 | 20 | 20 | 20 | 20 | 20 | 22 | 21 | 20 |
Feels °C | 18 | 19 | 19 | 20 | 21 | 20 | 19 | 18 | 19 | 19 | 20 | 19 | 19 | 19 | 21 | 21 | 20 | 20 | 22 | 20 | 21 |
Swell 1 Height (m) Direction Period (s) | SW 18 | W 7 | W 7 | W 8 | W 8 | SW 16 | W 9 | W 10 | SW 16 | SW 15 | SW 15 | SW 15 | SW 15 | SW 15 | SW 14 | SSW 14 | SSW 14 | SSW 14 | SSW 13 | SW 13 | SW 13 |
694 | 77 | 124 | 145 | 118 | 527 | 194 | 188 | 489 | 322 | 309 | 309 | 314 | 318 | 288 | 362 | 367 | 232 | 225 | 142 | 183 | |
Swell 2 Height (m) Direction Period (s) | WNW 7 | SW 18 | SW 18 | SW 16 | SW 16 | W 8 | SW 16 | SW 16 | W 10 | W 8 | W 8 | W 9 | W 7 | W 7 | WNW 8 | W 8 | W 10 | WNW 9 | WNW 9 | S 14 | SW 19 |
77 | 460 | 375 | 527 | 521 | 98 | 432 | 421 | 117 | 90 | 84 | 56 | 35 | 21 | 23 | 18 | 29 | 16 | 16 | 101 | 133 | |
Swell 3 Height (m) Direction Period (s) | W 12 | SW 15 | SW 14 | SSW 19 | — | — | — | S 9 | — | — | S 21 | — | SSW 20 | WNW 9 | SSW 18 | W 24 | SW 21 | WSW 21 | SW 21 | SW 19 | W 10 |
11 | 212 | 132 | 210 | — | — | — | 2 | — | — | 9 | — | 37 | 7 | 60 | 11 | 18 | 45 | 18 | 59 | 30 | |
Wind waves Height (m) Direction Period (s) | — | WNW 7 | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | WNW 9 | — |
— | 102 | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | 16 | — | |
Nearest Offshore or Glassy | |||||||||||||||||||||
Distance (km) | 18 | 18 | 18 | 18 | 18 | 18 | 0 | 127 | 66 | 4 | 151 | 66 | 4 | 6 | 18 | 0 | 18 | 18 | 18 | 18 | 18 |
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.










