Surf Forecasts:
Blacks Beach surf forecast from 19 Aug 2026:
- Best quality surf: Thursday 20 Aug, 2AM (local time) - 2.5ft (0.8m), 15s period, SSW swell with glassy winds.
- Most powerful swell: Wednesday 19 Aug, 2PM (local time) - 3ft (0.9m), 16s period, SSW swell with 387 kJ wave energy.
- Next surfable swell (1★+): Thursday 20 Aug, 2AM (local time) - 2.5ft (0.8m), 15s 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 Thursday (Aug 20) at 2AM. The primary swell is predicted to be 0.8m and 15s period with a secondary swell of 0.7m and 6s. 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 0.9m 16s and forecast to arrive on Wednesday (Aug 19) at 2PM. Winds are predicted to be onshore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 0.6m 13s period and expected on Tuesday (Aug 25) at 11AM.
| Wave Type | Time (PDT) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | 2AM (Thu 20th Aug) | 2.5ft (0.8m) 15s |
| Best Surf | 2AM (Thu 20th Aug) | 2.5ft (0.8m) 15s |
| Most Powerful | 2PM (Wed 19th Aug) | 3ft (0.9m) 16s |
Table - best surf conditions forecast for Blacks Beach over the next 16 days.
The Lowdown
Alright, Rusty here. Let’s have a look at what’s on the table for the next couple of weeks.
Honestly, it’s a pretty quiet stretch for Blacks Beach. The whole 16-day window is looking flat and uninspiring, with a long gap of nothing really worth paddling out for. The first day I’d even start to think about is Thursday morning, August 21st, but even then it’s marginal at best. From now until late August, there’s just not enough push to get excited about.
We’ve got a weak, long-period SSW groundswell trickling in, with swell heights hovering around 2 ft to 3 ft and periods up to 16 seconds. That long period is nice for shape in theory, but the energy is just too low – combined swell energy sits around 200-500 (moderate to weak), so it’s not gonna get the blood pumping. Winds are mostly light and onshore or cross-onshore, so expect small, rippled-out surf with poor conditions. Not clean, not powerful.
The real pick of a very weak bunch looks like late Friday afternoon, August 28th, into Saturday, August 29th. On Friday afternoon, the swell bumps up to 3 ft from the SSW at a very long 19 seconds, and the combined energy climbs to 539 (moderate). Saturday morning sees the swell nudge 3 ft, still from the SSW, with a 17-second period and energy of 685. That’s the most interesting pulse we get. Winds are light and offshore (from the W to WSW) – glassy or near-offshore conditions could make it clean. Blacks is an exposed point, so it handles these long-period SSW swells well. But it’s an advanced break and on a small day like this, only the most experienced will get the best of it. The water temp is about average for this time of year, nothing unusual.
After that, it fades back to tiny by early September. A brief shift to a short-period W swell around September 1st (4 ft, but only 8 seconds) is not gonna deliver quality – that’s choppy and weak. Then it’s back to the same old marginal SSW pulses. For beginners, forget it – never gets above 5 ft. For experts, it’s a few small, clean windows, but you’ll be scratching for a wave.
Bottom line: save your energy. The standout is that Saturday morning, August 29th, window. It’s the only time you might get a clean, lined-up wave on the longer-period groundswell. But don’t expect much. Forecasts can change, but right now this stretch looks more like a good time to do a board repair than surf.
Stay patient,
Rusty
Short Range ForecastMostly dry. Warm (max 24°C on Fri morning, min 21°C on Wed morning). Wind will be generally light. | Days 4-6 Weather SummaryMostly dry. Warm (max 25°C on Sat morning, min 22°C on Sat morning). Wind will be generally light. | ||||||||||||||||||||
Wednesday 19 | Thursday 20 | Friday 21 | Saturday 22 | Sunday 23 | Monday 24 | Tuesday 25 | |||||||||||||||
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) | SSW 16 | SSW 16 | SSW 15 | SSW 14 | SSW 14 | SSW 14 | SSW 13 | SSW 13 | SW 17 | SSW 13 | SSW 14 | SSW 15 | SW 19 | SW 18 | SSW 14 | SW 18 | SW 17 | SW 17 | SW 16 | SW 16 | SW 16 |
Wave Graph | |||||||||||||||||||||
382 | 387 | 242 | 239 | 236 | 170 | 156 | 137 | 98 | 90 | 239 | 222 | 224 | 194 | 273 | 194 | 177 | 330 | 264 | 208 | 203 | |
Wind (km/h) | |||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | on | cross-on | glassy | cross-on | cross-on | cross-on | cross-on | on | glassy | on | on | on | cross-on | on | cross-on | on | cross-on | cross-on | on | cross-on | cross-on |
High Tide | 2:37PM1.45m | 3:54PM1.43m | 8:26AM1.03m | 5:14PM1.47m | 8:32AM1.09m | 6:16PM1.55m | 8:46AM1.14m | 7:02PM1.65m | 9:01AM1.19m | 7:40PM1.74m | 9:17AM1.24m | 8:14PM1.81m | |||||||||
Low Tide | 11:03PM0.41m | 00:25AM0.30m | 10:32AM1.01m | 1:16AM0.18m | 12:09PM0.97m | 1:53AM0.09m | 12:58PM0.88m | 2:23AM0.01m | 1:35PM0.78m | 2:50AM-0.04m | 2:08PM0.68m | 3:14AM-0.07m | |||||||||
6:13 | — | — | 6:15 | — | — | 6:16 | — | — | 6:16 | — | — | 6:16 | — | — | 6:18 | — | — | 6:18 | — | — | |
— | 7:30 | — | — | 7:29 | — | — | 7:27 | — | — | 7:25 | — | — | 7:24 | — | — | 7:23 | — | — | 7:22 | — | |
mm | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
Temp °C | 23 | 23 | 22 | 23 | 23 | 21 | 24 | 23 | 22 | 25 | 24 | 23 | 25 | 24 | 23 | 25 | 24 | 23 | 25 | 24 | 23 |
Feels °C | 24 | 23 | 24 | 24 | 23 | 22 | 25 | 23 | 24 | 25 | 24 | 24 | 25 | 24 | 25 | 25 | 24 | 24 | 25 | 23 | 24 |
Swell 1 Height (m) Direction Period (s) | W 7 | SSW 16 | SSW 15 | SSW 14 | SSW 14 | SSW 14 | SSW 13 | SSW 13 | SSW 13 | SSW 13 | SSW 14 | SSW 15 | SSW 13 | SSW 13 | SSW 14 | SW 18 | SW 17 | W 6 | SW 16 | SW 16 | SW 16 |
74 | 387 | 242 | 239 | 236 | 170 | 156 | 137 | 98 | 90 | 239 | 222 | 135 | 135 | 273 | 194 | 177 | 54 | 264 | 208 | 203 | |
Swell 2 Height (m) Direction Period (s) | SSW 16 | W 7 | W 6 | W 6 | W 6 | WNW 6 | W 6 | WNW 6 | W 6 | W 6 | W 6 | W 10 | W 6 | SW 18 | SW 18 | SSW 12 | SSW 13 | SW 17 | S 13 | S 13 | S 12 |
382 | 59 | 36 | 27 | 18 | 12 | 12 | 12 | 6 | 21 | 19 | 52 | 27 | 194 | 255 | 87 | 93 | 330 | 126 | 125 | 80 | |
Swell 3 Height (m) Direction Period (s) | SW 20 | W 14 | SW 18 | SW 19 | WNW 13 | WNW 12 | SW 18 | SSW 16 | SW 17 | SW 18 | SW 19 | SW 19 | SW 19 | W 6 | W 5 | SSW 15 | S 15 | S 13 | S 9 | W 18 | W 16 |
16 | 4 | 50 | 57 | 16 | 27 | 81 | 51 | 77 | 51 | 57 | 58 | 224 | 24 | 19 | 72 | 38 | 126 | 7 | 24 | 20 | |
Wind waves Height (m) Direction Period (s) | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | W 6 | WNW 6 | — | WNW 6 | WNW 6 | W 6 |
— | — | — | — | — | — | — | — | — | — | — | — | — | — | — | 23 | 33 | — | 50 | 52 | 73 | |
Nearest Offshore or Glassy | |||||||||||||||||||||
Distance (km) | 26 | 27 | 0 | 74 | 206 | 23 | 145 | 27 | 0 | 27 | 26 | 9 | 27 | 27 | 26 | 27 | 74 | 11 | 26 | 26 | 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.











