Surf Forecasts:
Big Rock surf forecast from 3 Jul 2026:
- Most powerful swell: Tuesday 7 Jul, 11AM (local time) - 3.5ft (1.1m), 18s period, SW swell with 694 kJ wave energy.
Best Forecast Surf Conditions for Big Rock this week:
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+) | - | - |
| Best Surf | - | - |
| 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 break down what’s going on at Big Rock for the next couple of weeks.
Gotta be honest, the first few days are a bit of a bummer. From Thursday the 2nd right through the weekend, the swell is small and the wind is a cross-onshore mess from the WNW. Wave heights are barely 2 ft to 3 ft, and it’s choppy. The water temp is about 68°, which is a touch warmer than normal, but that’s about all you’ll be thankful for. The combined energy is weak, hanging between 355 and 412 units. Not much to get excited about.
We do see things perk up a little starting Monday the 6th. The swell holds around 2 ft to 3 ft from the SW, but the wind turns more offshore from the West, cleaning it up. The energy starts climbing, hitting 619 units by Monday afternoon. Still a bit marginal, but it’s a step in the right direction. Tuesday the 7th shows a little more bump – waves near 4 ft, energy up to a moderate 762, and clean offshore wind. That’s the first real sign of life.
But the real standout? Aim for Wednesday the 8th and Thursday the 9th of July. Wednesday morning serves up a clean 3 ft SW swell with a light offshore breeze from the WSW at 6 mph. The energy is solid at 843 units. Thursday morning holds at 3 ft with a nice 16-second period and a light cross-shore breeze. That’s your best window: clean, long-period groundswell with some shape for the advanced crew at this reef.
After that, it fades. Friday the 10th gets choppy again, and by the second week (starting around Sunday the 12th) we’re looking at tiny 2 ft waves and weak energy down to 231 units. The second week is a total lull with poor conditions.
So, keep your eyes on Wednesday the 8th and Thursday the 9th. That’s where it’s at. The rest is a waiting game.
Stay stoked,
Rusty
Short Range ForecastMostly dry. Very mild (max 19°C on Thu afternoon, min 17°C on Thu night). Wind will be generally light. | Days 5-7 Weather SummaryMostly dry. Warm (max 20°C on Tue afternoon, min 18°C on Sun night). Wind will be generally light. | ||||||||||||||||||||
Thu 2 | Friday 3 | Saturday 4 | Sunday 5 | Monday 6 | Tuesday 7 | Wednesday 8 | |||||||||||||||
PM | Night | AM | PM | Night | AM | PM | Night | AM | PM | Night | AM | PM | Night | AM | PM | Night | AM | PM | Night | AM | |
Swell Height Map |  |  |  |  |  |  |  |  | |||||||||||||
Wave Height (m) Direction Period (s) | SSW 18 | SW 15 | SW 16 | SW 16 | SW 14 | SW 14 | SW 19 | SW 18 | 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 |
Wave Graph  | |||||||||||||||||||||
 kJ | 270 | 176 | 362 | 299 | 211 | 214 | 183 | 159 | 246 | 249 | 459 | 251 | 309 | 388 | 694 | 460 | 375 | 527 | 521 | 527 | 432 |
Wind (km/h) | |||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | cross-on | cross-on | on | cross-on | cross-on | on | cross-on | cross-on | on | on | cross-on | on | on | on | on | on | on | on | on | cross-on | cross |
High Tide | 10:55PM1.70m | 1:02PM1.14m | 11:31PM1.59m | 1:38PM1.19m | 00:11AM1.43m | 2:15PM1.26m | 1:02AM1.24m | 2:54PM1.36m | 2:14AM1.05m | 3:38PM1.47m | 4:01AM0.89m | 4:26PM1.60m | 6:00AM0.86m | ||||||||
Low Tide | 4:45PM0.77m | 6:17AM-0.09m | 5:31PM0.78m | 6:48AM-0.01m | 6:27PM0.78m | 7:19AM0.10m | 7:38PM0.76m | 7:52AM0.23m | 9:07PM0.68m | 8:29AM0.38m | 10:41PM0.51m | 9:14AM0.52m | 00:00AM0.28m | 10:12AM0.64m | |||||||
 |  |  | |  | |  | | | | | | | | | | | | | | | |
 | — | — | 5:45 | — | — | 5:45 | — | — | 5:46 | — | — | 5:46 | — | — | 5:47 | — | — | 5:47 | — | — | 5:48 |
 | 8:00 | — | — | 8:00 | — | — | 8:00 | — | — | 8:00 | — | — | 8:00 | — | — | 8:00 | — | — | 8:00 | — | 8:00 |
mm | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
Temp °C | 19 | 18 | 18 | 19 | 18 | 19 | 19 | 18 | 19 | 19 | 18 | 19 | 19 | 19 | 19 | 20 | 19 | 19 | 20 | 19 | 20 |
Feels °C | 17 | 17 | 17 | 17 | 17 | 17 | 18 | 18 | 18 | 18 | 17 | 18 | 17 | 19 | 18 | 19 | 19 | 18 | 20 | 20 | 19 |
Swell 1 Height (m) Direction Period (s) | SSW 18 | SW 15 | SW 16 | SW 16 | SW 14 | SW 14 | SW 14 | SW 14 | SW 18 | SW 18 | SW 17 | SW 16 | SW 16 | SW 16 | SW 18 | SW 18 | W 7 | SW 16 | SW 16 | SW 16 | W 8 |
| kJ | 270 | 176 | 362 | 299 | 211 | 214 | 169 | 153 | 246 | 249 | 459 | 251 | 251 | 299 | 694 | 460 | 86 | 527 | 521 | 527 | 169 |
Swell 2 Height (m) Direction Period (s) | SW 15 | W 4 | W 5 | S 10 | S 10 | SSW 19 | SW 19 | SW 18 | SW 13 | SW 13 | W 4 | W 5 | SW 20 | W 6 | W 6 | W 7 | SW 18 | W 7 | WNW 7 | W 7 | SW 16 |
| kJ | 104 | 10 | 11 | 18 | 17 | 148 | 183 | 159 | 140 | 85 | 10 | 14 | 309 | 43 | 54 | 57 | 375 | 109 | 89 | 108 | 432 |
Swell 3 Height (m) Direction Period (s) | SSW 11 | S 11 | S 11 | SSW 21 | SSW 21 | SSW 10 | S 9 | WNW 4 | WNW 4 | SSW 9 | SW 22 | SW 21 | SW 12 | SW 20 | WNW 12 | SW 15 | SW 15 | SSW 19 | — | — | S 10 |
| kJ | 22 | 21 | 20 | 44 | 44 | 20 | 15 | 6 | 3 | 15 | 163 | 162 | 36 | 388 | 14 | 212 | 171 | 207 | — | — | 2 |
Wind waves Height (m) Direction Period (s) | W 6 | — | WNW 5 | W 5 | WNW 4 | W 5 | W 5 | — | — | WNW 4 | — | — | W 6 | — | — | WNW 7 | — | — | — | — | — |
| kJ | 16 | — | 13 | 12 | 6 | 7 | 12 | — | — | 6 | — | — | 23 | — | — | 82 | — | — | — | — | — |
Nearest Offshore or Glassy | |||||||||||||||||||||
Distance (km) | 18 | 18 | 18 | 18 | 10 | 779 | 18 | 18 | 18 | 18 | 4 | 18 | 18 | 18 | 18 | 18 | 4 | 18 | 18 | 6 | 3 |
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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