
Surf Forecasts:
Blacks Beach surf forecast from 9 Aug 2026:
- Best quality surf: Sunday 9 Aug, 2AM (local time) - 3ft (0.9m), 16s 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★+): Sunday 9 Aug, 2AM (local time) - 3ft (0.9m), 16s 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 Sunday (Aug 09) at 2AM. The primary swell is predicted to be 0.9m and 16s period with a secondary swell of 0.6m and 5s. 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 Wednesday (Aug 12) at 5PM.
| Wave Type | Time (PDT) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | 2AM (Sun 9th Aug) | 3ft (0.9m) 16s |
| Best Surf | 2AM (Sun 9th Aug) | 3ft (0.9m) 16s |
| 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 again. Let’s break it down in feet and miles.
The only spot in the mix is Blacks Beach. The water’s a balmy 76°F, which is a whopping 8°F warmer than average for this time of year. That’s a freak anomaly – feels like a hot tub out there.
The first real chance to get wet doesn’t come until Friday, August 14th in the morning. We’re looking at a 2ft swell from the SSW with a very long period of 18 seconds. The combined energy is moderate (572). That long period groundswell can be tricky at a beach break like this – it can stand up straight and close out. The wind is offshore from the W at 10 mph, so the surface will be glassy. It’s a marginal call, though.
The afternoon of the 14th sees a bump in energy (666), but the wind picks up to 15 mph and the forecast is still marginal.
The best window of the whole run is Saturday, August 15th, in the morning. A 3ft swell from the SSW with a 16-second period, strong energy (656), and clean offshore wind from the WNW at 15 mph. That’s your best shot. The swell is small, but with that period and clean wind, you could score a few fun ones on a longboard. Crowds are often at Blacks, so don’t expect to have it to yourself.
From the 16th through the 23rd, it’s a total bust. The wind goes cross-onshore, the swell drops to 2ft – 3ft, and the waves are either too small or too messy. The energy stays moderate, but the quality is poor.
The only other flicker is Tuesday, August 18th, in the morning. A 2ft swell from the SSW, 16-second period, offshore wind from the W at 10 mph, and moderate energy (378). Still just a marginal forecast.
Bottom line: The whole 16-day window is a dud. The best of the worst is the morning of August 15th – small, clean, but not reliable. For the rest, the wind is cross-onshore so much that this setup looks more interesting for kitesurfing than paddle surfing. Don’t hold your breath.
Rusty.
Short Range ForecastMostly dry. Warm (max 24°C on Sun morning, min 22°C on Sat night). Wind will be generally light. | Days 5-7 Weather SummaryMostly dry. Warm (max 23°C on Tue afternoon, min 20°C on Thu night). Wind will be generally light. | |||||||||||||||||||
Sat 8 | Sunday 9 | Monday 10 | Tuesday 11 | Wednesday 12 | Thursday 13 | Friday 14 | ||||||||||||||
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) | 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 | SSW 18 | SSW 18 | SSW 17 |
Wave Graph | ||||||||||||||||||||
291 | 362 | 246 | 305 | 297 | 232 | 186 | 184 | 129 | 319 | 316 | 230 | 264 | 306 | 255 | 358 | 276 | 292 | 404 | 798 | |
Wind (km/h) | ||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | on | glassy | on | on | on | on | cross-on | glassy | on | on | on | on | on | glassy | cross-on | on | on | on | on | cross-on |
High Tide | 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 | 11:17AM1.52m | 10:58PM1.76m | |||||||
Low Tide | 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 | 4:55PM0.37m | ||||||||
— | — | 6:07 | — | — | 6:07 | — | — | 6:09 | — | — | 6:09 | — | — | 6:09 | — | — | 6:11 | — | — | |
7:40 | — | — | 7:39 | — | — | 7:38 | — | — | 7:37 | — | — | 7:37 | — | — | 7:36 | — | — | 7:35 | — | |
mm | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
Temp °C | 23 | 22 | 24 | 24 | 22 | 24 | 24 | 23 | 24 | 23 | 22 | 23 | 23 | 22 | 22 | 22 | 21 | 21 | 22 | 21 |
Feels °C | 23 | 23 | 25 | 24 | 23 | 25 | 24 | 24 | 24 | 22 | 23 | 23 | 22 | 23 | 23 | 22 | 22 | 22 | 22 | 22 |
Swell 1 Height (m) Direction Period (s) | 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 | SW 14 | SSW 18 | SSW 17 |
291 | 362 | 246 | 305 | 297 | 232 | 139 | 137 | 129 | 319 | 316 | 230 | 264 | 306 | 255 | 358 | 276 | 251 | 404 | 798 | |
Swell 2 Height (m) Direction Period (s) | SSW 12 | W 5 | W 5 | WNW 5 | SW 11 | SW 20 | SW 20 | SW 19 | SW 15 | SSW 12 | SSW 12 | SW 13 | S 12 | S 11 | SSW 12 | S 10 | SSW 20 | SSW 18 | SW 14 | SSW 11 |
81 | 16 | 14 | 9 | 30 | 103 | 186 | 184 | 75 | 48 | 47 | 61 | 71 | 58 | 82 | 51 | 149 | 292 | 251 | 47 | |
Swell 3 Height (m) Direction Period (s) | W 12 | SSW 12 | SSW 11 | SW 11 | W 4 | WNW 12 | SW 16 | SW 14 | SW 18 | SW 15 | SW 13 | S 13 | SW 13 | W 9 | S 12 | S 12 | S 13 | SSW 9 | S 11 | S 12 |
12 | 57 | 47 | 30 | 3 | 14 | 39 | 33 | 112 | 75 | 45 | 50 | 61 | 6 | 24 | 24 | 51 | 29 | 38 | 43 | |
Wind waves Height (m) Direction Period (s) | W 4 | — | — | — | — | — | W 4 | — | — | — | — | — | W 10 | — | — | W 8 | — | — | WNW 7 | — |
9 | — | — | — | — | — | 1 | — | — | — | — | — | 17 | — | — | 12 | — | — | 11 | — | |
Nearest Offshore or Glassy | ||||||||||||||||||||
Distance (km) | 27 | 0 | 26 | 27 | 10 | 27 | 27 | 0 | 27 | 27 | 23 | 27 | 27 | 0 | 27 | 27 | 8 | 27 | 27 | 26 |
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.











