
Surf Forecasts:
Blacks Beach surf forecast from 8 Aug 2026:
- Best quality surf: Saturday 8 Aug, 5AM (local time) - 3ft (0.9m), 18s period, SSW swell with glassy winds.
- Most powerful swell: Saturday 15 Aug, 2AM (local time) - 4ft (1.2m), 17s period, SSW swell with 798 kJ wave energy.
- Next surfable swell (1★+): Saturday 8 Aug, 5AM (local time) - 3ft (0.9m), 18s 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 08) at 5AM. The primary swell is predicted to be 0.9m and 18s period with a secondary swell of 0.6m and 12s. 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 17s and forecast to arrive on Saturday (Aug 15) at 2AM. Winds are predicted to be cross-onshore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 0.5m 12s period and expected on Tuesday (Aug 11) at 2PM.
| Wave Type | Time (PDT) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | 5AM (Sat 8th Aug) | 3ft (0.9m) 18s |
| Best Surf | 5AM (Sat 8th Aug) | 3ft (0.9m) 18s |
| Most Powerful | 2AM (Sat 15th Aug) | 4ft (1.2m) 17s |
Table - best surf conditions forecast for Blacks Beach over the next 16 days.
The Lowdown
Alright folks, Rusty here. Let’s get into it. We’ve got a long stretch ahead, but honestly, for the first week-plus, it’s a bit of a quiet one. The main break on the radar is Blacks Beach, and it’s a spot that’s consistent and exposed, but the swell energy just isn’t cooperating for a good while. The water temperature is about average for this time of year, so no surprises there.
The pattern starts off with a very long period groundswell from the SSW, but the energy is weak to moderate (combined energy around 411). The problem is the wind – it’s onshore or cross-onshore most of the time, and the surf quality is just poor. The swell is small, 3 ft, and that long period (17 seconds) is a groundswell, but with the wind chopping it up, it’s not doing us any favors. For a spot like Blacks, which is a beach break, that long period can make it break a bit too straight, so it’s not the best fit right now.
This continues right through the first week. From Saturday the 8th all the way to Friday the 14th, it’s a grim run of small surf (2 ft to 3 ft) and persistent onshore or cross-onshore winds. The combined energy fluctuates between 298 and 509 (moderate), but it’s all poor surf conditions. The one tiny glimmer is on Friday morning the 14th – the wind drops to a light breeze, and the swell period is still a solid 18 seconds from the SSW. The combined energy jumps to 509 (moderate), and the wave comment calls it “marginal.” It’s not great, but it’s the best of a bad bunch. Still, it’s only 2 ft, and that wave is mostly for the die-hards.
The weekend of the 15th and 16th sees a slight bump in swell size, up to 4 ft, but that’s accompanied by a moderate cross-onshore breeze and choppy conditions. The combined energy hits 700 (moderate), but the quality is still poor. This is a classic case of “looks bigger, feels worse.”
From the 17th through the 23rd, it’s more of the same – small swell, 2 ft to 3 ft, with a mix of onshore and cross-onshore winds. The energy stays moderate (248 to 501), but the surf quality remains poor. There’s no standout day in this stretch. It’s a long, flat-feeling run.
If I had to pick the best of what’s on offer, it’s that Friday morning the 14th. With a light wind and a 2 ft, 18-second groundswell, you might find a clean, glassy wave if you’re patient. But it’s marginal, and the crowds are likely at Blacks since it’s often busy. The swell direction (SSW) is not the optimum for Blacks (WNW), so it’s not going to be the best shape. Still, it’s the only window with any real potential. The rest of the outlook is a write-off for a good surf.
Rusty.
Short Range ForecastMostly dry. Warm (max 24°C on Sat morning, min 21°C on Fri night). Wind will be generally light. | Days 5-7 Weather SummaryMostly dry. Warm (max 24°C on Tue morning, min 21°C on Wed night). Wind will be generally light. | ||||||||||||||||||
Saturday 8 | Sunday 9 | Monday 10 | Tuesday 11 | Wednesday 12 | Thursday 13 | ||||||||||||||
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) | SSW 18 | SSW 17 | SSW 16 | SSW 16 | SSW 15 | SSW 15 | SSW 14 | SSW 14 | SW 20 | SW 19 | SSW 13 | SW 18 | SW 18 | SW 17 | SW 16 | SW 16 | SW 16 | SW 16 | SW 15 |
Wave Graph | |||||||||||||||||||
438 | 336 | 291 | 362 | 246 | 242 | 297 | 207 | 186 | 184 | 129 | 319 | 316 | 230 | 264 | 306 | 255 | 358 | 276 | |
Wind (km/h) | |||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | glassy | on | on | glassy | on | on | on | on | cross-on | glassy | on | on | on | on | on | on | cross-on | on | glassy |
High Tide | 7:58AM1.00m | 6:02PM1.87m | 8:35AM1.11m | 7:03PM1.99m | 9:08AM1.21m | 7:56PM2.09m | 9:39AM1.30m | 8:45PM2.12m | 10:12AM1.39m | 9:31PM2.07m | 10:44AM1.46m | 10:14PM1.94m | |||||||
Low Tide | 00:56AM-0.00m | 11:16AM0.88m | 1:47AM-0.18m | 12:36PM0.81m | 2:32AM-0.30m | 1:37PM0.69m | 3:12AM-0.36m | 2:30PM0.57m | 3:50AM-0.36m | 3:19PM0.47m | 4:25AM-0.28m | 4:07PM0.40m | 4:58AM-0.16m | ||||||
— | 6:07 | — | — | 6:07 | — | — | 6:07 | — | — | 6:09 | — | — | 6:09 | — | — | 6:09 | — | — | |
— | — | 7:40 | — | — | 7:39 | — | — | 7:38 | — | — | 7:37 | — | — | 7:37 | — | — | 7:36 | — | |
mm | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
Temp °C | 22 | 24 | 24 | 22 | 24 | 24 | 23 | 24 | 24 | 23 | 24 | 24 | 23 | 23 | 23 | 22 | 22 | 23 | 21 |
Feels °C | 23 | 24 | 24 | 23 | 24 | 24 | 25 | 24 | 24 | 24 | 24 | 25 | 24 | 24 | 23 | 23 | 22 | 23 | 22 |
Swell 1 Height (m) Direction Period (s) | SSW 18 | SSW 17 | SSW 16 | SSW 16 | SSW 15 | SSW 15 | SSW 14 | SSW 14 | SSW 13 | SSW 13 | SSW 13 | SW 18 | SW 18 | SW 17 | SW 16 | SW 16 | SW 16 | SW 16 | SW 15 |
438 | 336 | 291 | 362 | 246 | 242 | 297 | 207 | 139 | 137 | 129 | 319 | 316 | 230 | 264 | 306 | 255 | 358 | 276 | |
Swell 2 Height (m) Direction Period (s) | SW 12 | SW 12 | SSW 12 | W 5 | SSW 11 | SSW 11 | SW 11 | SW 20 | SW 20 | SW 19 | SW 15 | SSW 12 | SSW 12 | SW 13 | S 12 | S 11 | S 11 | S 10 | SSW 20 |
148 | 69 | 81 | 16 | 47 | 49 | 42 | 103 | 186 | 184 | 75 | 49 | 47 | 61 | 67 | 58 | 58 | 30 | 149 | |
Swell 3 Height (m) Direction Period (s) | W 15 | S 9 | W 12 | SSW 12 | WNW 5 | WNW 5 | SSW 11 | W 4 | SW 16 | SW 14 | SW 18 | SW 15 | SW 13 | S 13 | SW 13 | W 9 | SW 12 | S 12 | S 11 |
4 | 15 | 12 | 57 | 7 | 7 | 12 | 1 | 39 | 33 | 112 | 75 | 45 | 50 | 61 | 15 | 23 | 24 | 39 | |
Wind waves Height (m) Direction Period (s) | — | W 4 | W 4 | — | — | — | — | — | W 8 | — | — | WNW 12 | — | — | W 10 | — | — | — | — |
— | 6 | 6 | — | — | — | — | — | 4 | — | — | 28 | — | — | 17 | — | — | — | — | |
Nearest Offshore or Glassy | |||||||||||||||||||
Distance (km) | 0 | 26 | 27 | 0 | 27 | 27 | 27 | 27 | 291 | 0 | 27 | 27 | 16 | 27 | 27 | 15 | 145 | 76 | 0 |
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.











