Surf Forecasts:
Blacks Beach surf forecast from 22 Aug 2026:
- Best quality surf: Friday 28 Aug, 11PM (local time) - 3.5ft (1.0m), 17s period, SSW swell with glassy winds.
- Most powerful swell: Friday 28 Aug, 11PM (local time) - 3.5ft (1.0m), 17s period, SSW swell with 569 kJ wave energy.
- Next surfable swell (1★+): Friday 21 Aug, 11PM (local time) - 1.5ft (0.5m), 13s 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 Friday (Aug 21) at 11PM. The primary swell is predicted to be 0.5m and 13s period with a secondary swell of 0.4m 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 1.0m 17s and forecast to arrive on Friday (Aug 28) at 11PM. Winds are predicted to be glassy at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 1.9m 14s period and expected on Wednesday (Aug 26) at 5PM.
| Wave Type | Time (PDT) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | 11PM (Fri 21st Aug) | 1.5ft (0.5m) 13s |
| Best Surf | 11PM (Fri 28th Aug) | 3.5ft (1.0m) 17s |
| Most Powerful | 11PM (Fri 28th Aug) | 3.5ft (1.0m) 17s |
Table - best surf conditions forecast for Blacks Beach over the next 16 days.
The Lowdown
Alright, Rusty here. Let’s break it down.
First thing’s first: the first week is a grind. There are waves around, but they’re small and the conditions just aren’t clicking until the very end of the window. Water temp is running a tad warmer than usual at 71°F – not too shabby.
We’ll start with Blacks Beach on Friday the 21st of August. Tiny 2ft swell out of the SSW with a 13-second period. Energy is weak at 208. Offshore wind from the west at 6 mph sounds good, but it’s flagged as marginal with tide problems. Not the one.
Saturday the 22nd, the afternoon bumps to 3ft from the SSW, same 13-second period, energy climbs to 315 – that’s moderate. But conditions are called poor. Sunday and Monday stay similar: small 2ft waves with a longer 18-second period on Sunday. That long period and cross-on breeze makes for a choppy mess at the beach.
The real standout is way out on Thursday the 3rd of September. Swell is 3ft from the SSW with a 18-second period – a proper groundswell. Energy sits at 539 (moderate). But the kicker is the wind: glassy. Dead calm with a slight air from the south at just 3 mph. That means expect very good surf conditions. For an exposed spot like Blacks, that long-period SSW swell is going to have beautiful shape. Just note, with that period, the sets will be more spread out, but the ride will be clean and lined up. That Thursday afternoon is your golden ticket.
Before that, the 29th and 30th of August show a bump to 3ft to 4ft from the SSW, but they’re still only marginal. Light winds, mostly offshore, so you might snag something if the tide plays ball – but it’s not the clean winner.
After that Thursday high point, it fades back to 3ft waves and cross-on breezes through the 5th of September – poor to marginal calls.
So here’s the takeaway: save your energy for Thursday the 3rd of September. Glassy, clean, waist-to-chest high sets from the SSW. Blacks Beach is consistent so you’ll have company – crowds are likely – but that glassy window is worth the fight.
Signing off,
Rusty
Short Range ForecastMostly dry. Warm (max 26°C on Sun morning, min 21°C on Fri night). Wind will be generally light. | Days 5-7 Weather SummaryMostly dry. Warm (max 26°C on Tue morning, min 22°C on Wed night). Wind will be generally light. | |||||||||||||||||||
Fri 21 | Saturday 22 | Sunday 23 | Monday 24 | Tuesday 25 | Wednesday 26 | Thursday 27 | ||||||||||||||
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 13 | SW 17 | SW 18 | SSW 14 | SSW 15 | SW 19 | SW 18 | SSW 14 | SW 18 | SW 17 | SW 17 | SW 16 | SW 16 | SW 16 | WNW 7 | W 7 | SW 15 | SW 14 | SW 14 | SSW 18 |
Wave Graph  | ||||||||||||||||||||
 kJ | 137 | 98 | 90 | 239 | 222 | 224 | 197 | 273 | 249 | 177 | 330 | 264 | 208 | 203 | 86 | 62 | 134 | 132 | 167 | 207 |
Wind (km/h) | ||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | on | glassy | on | on | cross-on | on | cross-on | cross-on | on | on | glassy | on | on | cross-on | cross-on | cross-on | cross | cross-on | cross-on | glassy |
High Tide | 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 | 9:35AM1.31m | 8:46PM1.84m | 9:55AM1.38m | 9:19PM1.82m | |||||||
Low Tide | 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 | 2:40PM0.58m | 3:38AM-0.08m | 3:14PM0.49m | 4:01AM-0.05m | |||||||
 |  |  | | | | | | | | | | | | | | | | | | |
 | — | — | 6:16 | — | — | 6:16 | — | — | 6:18 | — | — | 6:18 | — | — | 6:18 | — | — | 6:20 | — | — |
 | 7:27 | — | — | 7:25 | — | — | 7:24 | — | — | 7:23 | — | — | 7:22 | — | — | 7:21 | — | — | 7:20 | — |
mm | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
Temp °C | 23 | 22 | 25 | 25 | 24 | 26 | 26 | 24 | 26 | 25 | 24 | 26 | 26 | 25 | 25 | 25 | 23 | 24 | 25 | 23 |
Feels °C | 24 | 24 | 26 | 26 | 25 | 26 | 26 | 26 | 26 | 25 | 26 | 26 | 26 | 26 | 25 | 25 | 25 | 24 | 25 | 24 |
Swell 1 Height (m) Direction Period (s) | SSW 13 | SSW 13 | W 6 | SSW 14 | SSW 15 | W 6 | SSW 13 | SSW 14 | SW 18 | SW 17 | SW 17 | SW 16 | W 6 | S 13 | S 13 | S 14 | S 12 | S 11 | S 11 | S 10 |
| kJ | 137 | 98 | 28 | 239 | 222 | 39 | 135 | 273 | 249 | 177 | 330 | 264 | 29 | 426 | 673 | 1363 | 660 | 350 | 269 | 154 |
Swell 2 Height (m) Direction Period (s) | W 6 | W 6 | SSW 13 | W 6 | W 6 | SSW 13 | SW 18 | W 5 | W 6 | W 6 | S 13 | W 6 | SW 16 | W 6 | S 16 | W 7 | W 7 | W 7 | W 8 | SW 14 |
| kJ | 20 | 10 | 90 | 19 | 16 | 98 | 197 | 19 | 26 | 24 | 126 | 27 | 208 | 68 | 590 | 62 | 36 | 68 | 57 | 149 |
Swell 3 Height (m) Direction Period (s) | SSW 16 | SW 17 | SW 18 | SW 19 | SW 19 | SW 19 | S 16 | SW 18 | SSW 12 | SSW 13 | W 5 | S 13 | S 13 | SW 16 | WNW 7 | W 14 | SW 15 | SW 14 | SW 14 | SSW 18 |
| kJ | 51 | 77 | 82 | 57 | 58 | 224 | 45 | 199 | 87 | 93 | 15 | 125 | 125 | 203 | 86 | 37 | 134 | 132 | 167 | 207 |
Wind waves Height (m) Direction Period (s) | — | — | — | — | — | — | W 6 | — | — | — | — | — | — | — | — | — | — | — | — | — |
| kJ | — | — | — | — | — | — | 35 | — | — | — | — | — | — | — | — | — | — | — | — | — |
Nearest Offshore or Glassy | ||||||||||||||||||||
Distance (km) | 27 | 0 | 27 | 26 | 12 | 26 | 26 | 15 | 27 | 27 | 0 | 26 | 27 | 2 | 125 | 5 | 5 | 74 | 74 | 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.
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