
Surf Forecasts:
Big Rock surf forecast from 16 Jul 2026:
- Best quality surf: Sunday 19 Jul, 5AM (local time) - 4.5ft (1.4m), 14s period, SSW swell with glassy winds.
- Most powerful swell: Sunday 19 Jul, 2PM (local time) - 5.5ft (1.7m), 13s period, SSW swell with 1,042 kJ wave energy.
- Next surfable swell (1★+): Saturday 18 Jul, 11PM (local time) - 2ft (0.6m), 14s period with SSW 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 18) at 11PM. The primary swell is predicted to be 0.6m and 14s period with a secondary swell of 0.6m and 11s. 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 1.7m 13s and forecast to arrive on Sunday (Jul 19) at 2PM. 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+) | 11PM (Sat 18th Jul) | 2ft (0.6m) 14s |
| Best Surf | 5AM (Sun 19th Jul) | 4.5ft (1.4m) 14s |
| Most Powerful | 2PM (Sun 19th Jul) | 5.5ft (1.7m) 13s |
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.
The 16-day window starts off flat and pretty grim, with no real surf to speak of right through the first week. We’re looking at a long, quiet stretch until the middle of the month. Things slowly start to perk up after that, but it’s a grind.
For the first few days, we’ve got tiny swell and messy cross-shore winds. The water is a notable 72°, which is a solid 5° warmer than usual for this time of year – that’s much warmer than normal, so you’ll feel it if you’re out there.
The real action, if you can call it that, starts to show around Saturday, 19 July at Big Rock. We’ve got a 5ft swell from the SSW, with a period of 13 seconds. That’s a moderate energy pulse (1263), but the wind is a light cross-onshore breeze. It’s not clean, but it’s the first sign of life. The water is still that warm anomaly.
The standout, and the only real window worth chasing, is Friday, 24 July into the following weekend. On the morning of the 24th, we see a very long period SW groundswell at 24 seconds, pushing 2ft. That’s a classic groundswell, and at a reef like Big Rock, it’ll line up nicely. The wind is light and cross-onshore, so it’ll be a bit bumpy, but the energy is solid (1363). The afternoon sees a bigger 5ft pulse from the SSW at 13 seconds, with light cross-shore wind. It’s the best combo on offer.
After that, the 25th and 26th have some clean, offshore mornings with the W wind, but the swell drops back to 3ft to 3ft, with long periods of 19-21 seconds. It’ll be small and tapering, but the conditions will be glassy and clean.
The second week is a bit of a mixed bag. From the 27th onward, we see a persistent 4ft to 4ft SW swell, but the wind is mostly onshore or cross-onshore, which makes it choppy and messy. The energy is moderate (around 900-1000), but the quality just isn’t there for a proper session. The 29th and 30th get a bit of cross-shore wind, but it’s a moderate breeze, so you’ll be battling a chop.
Overall, it’s a tough outlook. The first week is a write-off, the second week has a few small windows. The best bet is the morning of the 24th at Big Rock for that long period groundswell, but don’t expect perfection. Keep your eyes on the sky, and don’t hold your breath.
Rusty.
Short Range ForecastMostly dry. Warm (max 22°C on Thu afternoon, min 20°C on Thu morning). Wind will be generally light. | Days 4-6 Weather SummaryMostly dry. Warm (max 25°C on Tue morning, min 20°C on Sun night). Wind will be generally light. | ||||||||||||||||||||
Thursday 16 | Friday 17 | Saturday 18 | Sunday 19 | Monday 20 | Tuesday 21 | Wednesday 22 | |||||||||||||||
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 16 | WSW 16 | WSW 15 | SW 19 | SW 18 | WSW 15 | SW 18 | SW 18 | SSW 15 | SSW 13 | SW 15 | SW 15 | SSW 14 | SSW 11 | SW 16 | SW 16 | SW 15 | SW 15 | SW 14 | SW 14 | SSW 14 |
Wave Graph | |||||||||||||||||||||
203 | 164 | 144 | 181 | 102 | 142 | 366 | 249 | 588 | 713 | 648 | 519 | 850 | 386 | 492 | 400 | 375 | 435 | 350 | 346 | 613 | |
Wind (km/h) | |||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | cross | cross | cross | cross | cross | cross | cross-on | cross-on | cross-on | cross-on | on | glassy | cross-on | on | cross-on | on | on | cross-on | cross-on | cross-on | cross-on |
High Tide | 12:05PM1.33m | 11:13PM1.89m | 12:46PM1.38m | 00:02AM1.65m | 1:30PM1.42m | 00:55AM1.38m | 2:16PM1.45m | 2:00AM1.12m | 3:05PM1.48m | 3:37AM0.92m | 3:58PM1.50m | 5:57AM0.86m | 4:54PM1.53m | ||||||||
Low Tide | 5:06PM0.56m | 6:14AM-0.21m | 6:05PM0.57m | 6:52AM-0.02m | 7:12PM0.59m | 7:29AM0.19m | 8:31PM0.58m | 8:06AM0.41m | 10:06PM0.52m | 8:46AM0.60m | 11:41PM0.40m | 9:39AM0.76m | 00:51AM0.25m | ||||||||
5:52 | — | — | 5:52 | — | — | 5:52 | — | — | 5:54 | — | — | 5:54 | — | — | 5:54 | — | — | 5:56 | — | — | |
— | 7:57 | — | — | 7:57 | — | — | 7:55 | — | — | 7:55 | — | — | 7:54 | — | — | 7:54 | — | — | 7:53 | — | |
mm | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
Temp °C | 21 | 22 | 21 | 21 | 21 | 20 | 22 | 21 | 20 | 22 | 22 | 21 | 23 | 23 | 23 | 25 | 24 | 23 | 22 | 22 | 21 |
Feels °C | 20 | 21 | 22 | 20 | 19 | 19 | 23 | 20 | 21 | 23 | 22 | 22 | 24 | 22 | 24 | 23 | 23 | 25 | 22 | 21 | 22 |
Swell 1 Height (m) Direction Period (s) | W 8 | W 8 | W 8 | W 8 | W 8 | W 8 | SW 18 | SW 18 | SSW 15 | SSW 13 | SSW 13 | SSW 12 | SSW 14 | SSW 11 | SW 16 | SW 16 | SW 15 | SW 15 | SW 14 | SW 14 | SSW 14 |
74 | 86 | 86 | 63 | 80 | 42 | 366 | 249 | 588 | 713 | 563 | 444 | 850 | 386 | 492 | 400 | 375 | 435 | 350 | 346 | 613 | |
Swell 2 Height (m) Direction Period (s) | SW 16 | WSW 16 | WSW 15 | SW 14 | SW 14 | WSW 15 | S 12 | S 12 | WNW 6 | SW 17 | SW 15 | SW 15 | WNW 5 | SW 16 | SSW 10 | SW 9 | SW 9 | SW 8 | SW 7 | S 14 | W 6 |
203 | 164 | 144 | 103 | 102 | 142 | 71 | 98 | 13 | 470 | 648 | 519 | 9 | 211 | 154 | 67 | 62 | 40 | 18 | 183 | 56 | |
Swell 3 Height (m) Direction Period (s) | SSW 12 | SW 12 | SW 19 | SW 19 | SW 18 | SSW 11 | W 7 | W 7 | SW 13 | WNW 16 | WNW 6 | WNW 6 | W 14 | W 5 | WNW 14 | S 8 | S 8 | SSW 8 | S 15 | SW 7 | SW 19 |
56 | 35 | 127 | 181 | 83 | 43 | 23 | 22 | 44 | 80 | 14 | 7 | 37 | 9 | 67 | 35 | 35 | 20 | 71 | 16 | 95 | |
Wind waves Height (m) Direction Period (s) | — | — | S 3 | SSW 3 | S 3 | S 3 | — | — | — | — | — | — | — | — | — | — | — | NW 3 | WNW 3 | WNW 4 | — |
— | — | 2 | 2 | 6 | 1 | — | — | — | — | — | — | — | — | — | — | — | 3 | 5 | 13 | — | |
Nearest Offshore or Glassy | |||||||||||||||||||||
Distance (km) | 127 | 127 | 66 | 66 | 127 | 3 | 127 | 18 | 66 | 67 | 18 | 0 | 18 | 18 | 4 | 18 | 18 | 1 | 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.










