
Surf Forecasts:
Blacks Beach surf forecast from 31 Jul 2026:
- Best quality surf: Saturday 1 Aug, 2AM (local time) - 3ft (0.9m), 14s period, SSW swell with glassy winds.
- Most powerful swell: Friday 31 Jul, 11AM (local time) - 4ft (1.2m), 14s period, SSW swell with 588 kJ wave energy.
- Next surfable swell (1★+): Saturday 1 Aug, 2AM (local time) - 3ft (0.9m), 14s period with SSW swell.
Best Forecast Surf Conditions for Blacks Beach this week:
The surf forecast for Blacks Beach over the next 16 days: The first swell (rated 1 star or higher) is forecast to arrive on Saturday (Aug 01) at 2AM. The primary swell is predicted to be 0.9m and 14s period. The wind is predicted to be glassy as the swell arrives.
The most powerful waves expected at Blacks Beach in the next 16 days are 1.2m 14s and forecast to arrive on Friday (Jul 31) at 11AM. Winds are predicted to be onshore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 1.4m 14s period and expected on Friday (Jul 31) at 5AM.
| Wave Type | Time (PDT) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | 2AM (Sat 1st Aug) | 3ft (0.9m) 14s |
| Best Surf | 2AM (Sat 1st Aug) | 3ft (0.9m) 14s |
| Most Powerful | 11AM (Fri 31st Jul) | 4ft (1.2m) 14s |
Table - best surf conditions forecast for Blacks Beach over the next 16 days.
The Lowdown
Alright folks, Rusty here. Let’s get straight into it. Look, I’m not gonna sugarcoat it—this 16-day window for Blacks Beach is a tough one to call. The guidance points to a consistent break, but the reality from the forecast is a long, drawn-out stretch of small, weak surf that’s just not doing much. We’ve got a run starting from Friday, July 31st, with a little bit of energy, but honestly, it’s a struggle to find a window that’s worth paddling out for.
The only real glimmer of something half-decent is on Friday morning, July 31st. We’re looking at a 4 ft SSW swell, with a period of 14 seconds. That’s a proper groundswell, and it’s packing some moderate energy (612). The wind is light and blowing from the W, which is offshore for Blacks Beach, so the surface should be clean. But the score is a 1 out of 10, and the wave comment says "marginal surf forecast or questionable tide conditions." So, it’s a tease. The water temp is about average for this time of year, nothing unusual.
After that Friday morning window, it’s a massive gap. From Friday afternoon, July 31st, all the way through to Wednesday, August 12th, the forecast is full of "poor surf conditions" with flat, tiny waves. Swell heights drop to 1 ft to 2 ft, and the wind is mostly cross-on or onshore, keeping things choppy and messy. There’s nothing to get excited about here. Even the longer period swells that show up around the 7th and 8th of August (19 seconds and 17 seconds) are too small and have poor wind conditions—gentle cross-onshore breezes just ruin any chance of a clean wave.
The first real hint of a pulse comes back on Wednesday afternoon, August 12th. We’ve got a 3 ft SW groundswell, period of 16 seconds, with moderate energy (574). The wind is a light offshore from the WNW, so the surface should be clean. It’s only a 1 out of 10 again, labeled "marginal surf forecast or questionable tide conditions," but it’s the best looking window in the second week. The swell direction is a bit off the optimum (WNW), but with a clean offshore wind, it might just offer a few fun ones if you’re patient.
The rest of the run into August 15th stays small and weak. Swells pop up with periods of 15-18 seconds, but the heights are 2 ft to 3 ft, and the wind is either onshore or cross-on again. The energy is there (consistently in the 300-500 range), but it’s not translating into the quality we need. The forecast is still full of "poor surf conditions."
So, what’s the call? The standout here is a narrow window: Friday morning, July 31st for a little bit of juice, but be prepared for a dicey tide. The other one to keep an eye on is Wednesday afternoon, August 12th, but that’s a long way off and less certain. For the rest of it, you’re looking at a lot of flat, blown-out days. Given the consistent nature of this break, it’s a bit of a bummer, but this is how it goes sometimes. Forecasts can change, and we might see a better pulse pop up, but right now, it’s a waiting game.
Stay patient, and keep an eye on the sky.
- Rusty
Short Range ForecastMostly dry. Warm (max 24°C on Sat morning, min 20°C on Thu night). Wind will be generally light. | Days 5-7 Weather SummaryMostly dry. Warm (max 23°C on Mon morning, min 21°C on Sun night). Wind will be generally light. | ||||||||||||||||||
Friday 31 | Saturday 1 | Sunday 2 | Monday 3 | Tuesday 4 | Wednesday 5 | ||||||||||||||
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) | WNW 9 | SSW 14 | SSW 14 | SSW 14 | SSW 13 | SSW 14 | SSW 10 | SW 14 | SW 13 | SW 13 | SW 13 | SW 13 | SW 16 | SW 15 | SW 15 | SW 15 | SW 14 | SW 14 | SW 14 |
Wave Graph | |||||||||||||||||||
26 | 588 | 261 | 265 | 170 | 125 | 71 | 89 | 87 | 82 | 80 | 91 | 91 | 115 | 107 | 75 | 128 | 125 | 160 | |
Wind (km/h) | |||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | glassy | on | on | glassy | on | cross-on | cross-on | cross-on | on | cross-on | on | cross-on | glassy | cross-on | cross-on | glassy | cross-on | on | on |
High Tide | 10:08PM1.82m | 11:34AM1.30m | 10:41PM1.73m | 12:01PM1.36m | 11:17PM1.58m | 12:30PM1.41m | 11:57PM1.40m | 1:02PM1.47m | 00:49AM1.18m | 1:42PM1.53m | 2:06AM0.96m | 2:32PM1.58m | 4:22AM0.83m | ||||||
Low Tide | 5:08AM-0.10m | 4:39PM0.61m | 5:34AM-0.02m | 5:22PM0.59m | 5:59AM0.09m | 6:13PM0.58m | 6:25AM0.24m | 7:15PM0.55m | 6:51AM0.40m | 8:36PM0.51m | 7:21AM0.57m | 10:17PM0.39m | |||||||
— | 6:01 | — | — | 6:01 | — | — | 6:03 | — | — | 6:03 | — | — | 6:03 | — | — | 6:05 | — | — | |
— | — | 7:47 | — | — | 7:47 | — | — | 7:46 | — | — | 7:45 | — | — | 7:45 | — | — | 7:44 | — | |
mm | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
Temp °C | 20 | 23 | 23 | 23 | 24 | 24 | 23 | 24 | 24 | 22 | 23 | 23 | 22 | 23 | 23 | 21 | 23 | 23 | 22 |
Feels °C | 21 | 24 | 23 | 24 | 25 | 24 | 24 | 24 | 24 | 23 | 24 | 23 | 23 | 23 | 23 | 22 | 23 | 23 | 23 |
Swell 1 Height (m) Direction Period (s) | S 14 | SSW 14 | SSW 14 | SSW 14 | SSW 13 | SSW 11 | SSW 10 | W 7 | W 7 | W 8 | W 6 | W 6 | W 6 | W 6 | W 6 | W 6 | SW 14 | SW 14 | SW 14 |
780 | 588 | 261 | 265 | 170 | 117 | 71 | 48 | 54 | 60 | 52 | 39 | 32 | 25 | 27 | 19 | 128 | 125 | 160 | |
Swell 2 Height (m) Direction Period (s) | WNW 9 | S 9 | S 11 | S 10 | W 7 | W 8 | W 7 | SW 14 | S 12 | SW 13 | SW 13 | SW 13 | SW 12 | SW 15 | SW 15 | SW 15 | W 6 | W 6 | WNW 4 |
26 | 43 | 146 | 92 | 47 | 55 | 37 | 89 | 73 | 82 | 80 | 82 | 53 | 115 | 107 | 75 | 18 | 18 | 6 | |
Swell 3 Height (m) Direction Period (s) | — | W 7 | W 7 | W 7 | S 9 | SSW 14 | S 13 | S 12 | SW 13 | SSW 12 | SW 16 | SW 16 | SW 16 | SW 12 | SW 12 | SW 13 | S 13 | SW 12 | S 9 |
— | 24 | 26 | 27 | 41 | 125 | 119 | 75 | 87 | 46 | 68 | 91 | 91 | 36 | 36 | 40 | 13 | 34 | 6 | |
Wind waves Height (m) Direction Period (s) | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
— | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | |
Nearest Offshore or Glassy | |||||||||||||||||||
Distance (km) | 2 | 26 | 26 | 0 | 27 | 27 | 18 | 145 | 27 | 5 | 27 | 27 | 0 | 145 | 145 | 0 | 27 | 27 | 2 |
Best forecast wave conditions in San Diego County | |||||||||||||||||||
Best forecast wave conditions in United States | |||||||||||||||||||
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Information about the Blacks Beach Surf forecast
The above surf forecast table for Blacks Beach provides essential information for determining whether the surfing conditions will be good over the next 16 days. A general guide to surfing at Blacks Beach can be found by selecting the local surf guide option on the grey menu. Our Blacks Beach 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 (Blacks Beach) 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 Blacks Beach 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.
Blacks Beach is 13 km (8 miles) from the city of 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.











