Surf Forecasts:
Big Rock surf forecast from 5 Jul 2026:
- Best quality surf: Wednesday 8 Jul, 5AM (local time) - 3.5ft (1.0m), 18s 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★+): Wednesday 8 Jul, 5AM (local time) - 3.5ft (1.0m), 18s 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 Wednesday (Jul 08) at 5AM. The primary swell is predicted to be 1.0m and 18s period with a secondary swell of 1.1m and 7s. 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+) | 5AM (Wed 8th Jul) | 3.5ft (1.0m) 18s |
| Best Surf | 5AM (Wed 8th Jul) | 3.5ft (1.0m) 18s |
| 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, Rusty here. Let's have a look at the only spot on the cards, Big Rock.
So, the outlook for the next couple of weeks at Big Rock is a bit of a bummer. The sea is sending in a steady stream of swell from the southwest, but it’s just not finding its way into the bay. The numbers show some moderate wave energy in the water, with the combined swell energy reaching 883 (moderate) on Wednesday morning the 8th, but the onshore and cross-onshore winds are just chopping everything to bits. Honestly, for the first week, from Sunday the 5th right through to Saturday the 11th, it's all looking pretty grim. The forecast is reading "poor surf conditions" for most of that, with the wind coming out of the WNW, WSW, and SSW, which is just wrong for this spot to clean up. You’ll get some small 2ft to 4ft swells, but with short periods and dirty wind, it’s a waste of time. The water’s running a touch warmer than normal at 69°, but that’s about the only good thing.
There's a slight flicker of hope on Tuesday afternoon the 14th, where a 1ft swell from the SW with an 18-second period rolls in, and the wind swings light from the west. That long period might give it a little shape, but the size is tiny so it's only just blinking into "marginal" territory. The energy is weak at 291.
Honestly, the best window in this entire 16-day stretch looks like the tail end. Specifically, Saturday the 18th morning. We’ve got a 3ft SW swell with a 17-second period rolling in, and the wind is switching to a light WSW, blowing straight offshore. For Big Rock, that offshore wind is the key. The combined energy at 500 (moderate) is decent for the size. It’s a reef break for advanced surfers only, and it’s fairly consistent, so even small, those longer period waves should offer something. The main issue is the crowds; it gets "often" busy, so get in early. Sunday the 19th looks like the wind gets too strong from the south, so that Saturday morning the 18th is your one clear standout.
If you’re a beginner or intermediate, those sub-5ft swells are fine, but the quality is just so poor. For a bigger-wave surfer, there’s nothing over 5ft that lines up with the wind. The constant wind out of the south-southwest for the second week is a killer. It’s a long, dry spell.
Rusty, signing off.
Short Range ForecastMostly dry. Warm (max 20°C on Sun morning, min 18°C on Sun morning). Wind will be generally light. | Days 4-6 Weather SummaryMostly dry. Warm (max 21°C on Wed afternoon, min 18°C on Wed morning). Wind will be generally light. | ||||||||||||||||||||
Sunday 5 | Monday 6 | Tuesday 7 | Wednesday 8 | Thursday 9 | Friday 10 | Saturday 11 | |||||||||||||||
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 17 | SW 16 | SW 20 | SW 20 | 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 |
Wave Graph  | |||||||||||||||||||||
 kJ | 246 | 249 | 459 | 306 | 309 | 388 | 694 | 460 | 375 | 527 | 443 | 527 | 432 | 367 | 362 | 322 | 309 | 309 | 318 | 322 | 288 |
Wind (km/h) | |||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | on | cross-on | cross-on | on | on | cross-on | on | on | on | cross-on | cross-on | cross-on | cross-on | cross-on | cross | cross | cross-on | cross | cross | cross-on | cross |
High Tide | 2:15PM1.26m | 1:02AM1.24m | 2:54PM1.36m | 2:14AM1.05m | 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 | ||||||||
Low Tide | 7:38PM0.76m | 7:52AM0.23m | 9:07PM0.68m | 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 | ||||||||
 | |  | | | | | | | | | | | | | | | | |  |  | |
 | 5:46 | — | — | 5:46 | — | — | 5:47 | — | — | 5:47 | — | — | 5:48 | — | — | 5:48 | — | — | 5:48 | — | — |
 | — | 8:00 | — | — | 8:00 | — | — | 8:00 | — | — | 8:00 | — | — | 8:00 | — | — | 7:59 | — | — | 7:59 | — |
mm | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
Temp °C | 20 | 20 | 19 | 20 | 20 | 19 | 19 | 20 | 19 | 20 | 21 | 20 | 20 | 21 | 20 | 21 | 21 | 20 | 20 | 21 | 20 |
Feels °C | 20 | 19 | 18 | 19 | 19 | 19 | 18 | 19 | 19 | 20 | 21 | 21 | 19 | 20 | 20 | 20 | 20 | 21 | 19 | 21 | 21 |
Swell 1 Height (m) Direction Period (s) | SW 18 | SW 18 | SW 17 | SW 16 | SW 16 | W 6 | SW 18 | WNW 7 | W 7 | W 8 | W 8 | W 8 | W 9 | W 10 | SW 16 | WNW 8 | SW 15 | SW 15 | SW 15 | SW 15 | SW 14 |
| kJ | 246 | 249 | 459 | 306 | 248 | 64 | 694 | 84 | 121 | 149 | 118 | 117 | 215 | 192 | 362 | 112 | 309 | 309 | 318 | 322 | 288 |
Swell 2 Height (m) Direction Period (s) | SSW 13 | SW 13 | W 5 | W 6 | SW 20 | SW 16 | WNW 7 | SW 18 | SW 18 | SW 16 | SW 16 | SW 16 | SW 16 | SW 16 | W 10 | SW 15 | W 8 | W 8 | W 7 | W 9 | W 8 |
| kJ | 116 | 85 | 16 | 22 | 309 | 352 | 79 | 460 | 375 | 527 | 443 | 527 | 432 | 367 | 117 | 322 | 84 | 42 | 22 | 37 | 21 |
Swell 3 Height (m) Direction Period (s) | SSW 9 | SSW 9 | SW 22 | SW 21 | SW 12 | SW 20 | W 12 | SW 15 | SW 14 | SSW 19 | — | — | — | S 10 | — | S 11 | S 21 | — | SSW 20 | S 20 | SSW 18 |
| kJ | 15 | 15 | 163 | 162 | 36 | 388 | 11 | 212 | 132 | 207 | — | — | — | 2 | — | 9 | 9 | — | 37 | 7 | 60 |
Wind waves Height (m) Direction Period (s) | W 4 | WNW 4 | — | — | W 6 | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
| kJ | 6 | 5 | — | — | 33 | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
Nearest Offshore or Glassy | |||||||||||||||||||||
Distance (km) | 18 | 18 | 18 | 151 | 18 | 18 | 150 | 18 | 18 | 18 | 18 | 18 | 6 | 66 | 4 | 151 | 66 | 5 | 6 | 18 | 4 |
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.
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