Surf Forecasts:
Blacks Beach surf forecast from 24 Aug 2026:
- Best quality surf: Saturday 29 Aug, 2AM (local time) - 4.5ft (1.3m), 17s period, SSW swell with glassy winds.
- Most powerful swell: Saturday 29 Aug, 2AM (local time) - 4.5ft (1.3m), 17s period, SSW swell with 932 kJ wave energy.
- Next surfable swell (1★+): Monday 24 Aug, 11PM (local time) - 2.5ft (0.7m), 17s period with SW 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 Monday (Aug 24) at 11PM. The primary swell is predicted to be 0.7m and 17s 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 1.3m 17s and forecast to arrive on Saturday (Aug 29) at 2AM. Winds are predicted to be glassy at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 1.4m 13s period and expected on Wednesday (Aug 26) at 2AM.
| Wave Type | Time (PDT) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | 11PM (Mon 24th Aug) | 2.5ft (0.7m) 17s |
| Best Surf | 2AM (Sat 29th Aug) | 4.5ft (1.3m) 17s |
| Most Powerful | 2AM (Sat 29th Aug) | 4.5ft (1.3m) 17s |
Table - best surf conditions forecast for Blacks Beach over the next 16 days.
The Lowdown
Alright folks, Rusty here. Let’s have a look at what we’ve got on the cards.
Right off the bat, I gotta be straight with you. The next week and a bit is pretty quiet. We’re looking at a run of small, weak swell with messy wind, so don’t expect much. There’s a real gap from now through to the start of September where the surf is just not happening. Monday the 24th kicks off with only 2ft of SW swell and a short 18-second period, but the wind is on it—never really clean. That pattern sticks around for days: light cross-onshore breezes and tiny swell that barely registers. The combined energy is weak, sitting in the low to mid hundreds (354 on Monday morning), and it doesn’t get any better through the week. We’re talking mostly poor surf conditions with scores of zero and one. This stretch is a write-off.
Now, towards the end of the first week and into the second, things start to nudge up a little. Around Friday the 28th afternoon, we see a slight uptick with 3ft of SSW swell and a 19-second period, giving us a combined energy of 506 (moderate). Wind is light and onshore but manageable. Still only marginal at best though.
The real standout doesn’t show until Friday the 4th of September. That morning, Blacks Beach sees 4ft of SSW swell with a 17-second period—long period groundswell, which means better shaped waves and more energy. The combined energy hits 1027 (strong). The wind is light and offshore from the WSW at 6 mph. That is clean, lined-up surf. By the afternoon, the swell holds at 4ft, period still 17 seconds, energy climbs to 1132 (strong), and the wind is offshore from the W. This is the best window in the whole 16 days. It’s not huge, but it’s clean, consistent, and has some push. Now, a heads up—long period SSW swell at Blacks Beach, which is an exposed beach break, can sometimes make it a bit too straight. But with offshore wind and that energy, it should still offer some good wedges.
Saturday the 5th of September still has size—4ft in the morning at 16 seconds—but the wind swings SSW and goes cross-shore, then picks up to 12 mph in the afternoon, so it gets choppy. Worth a look early though.
Sunday the 6th drops back to 3ft, still long period at 15 seconds, but the cross-onshore wind keeps it from being a classic.
The very last session on Monday the 7th of September afternoon offers a late surprise: 5ft from the SSW at 14 seconds, combined energy of 1000 (strong), and light offshore wind from the W at 6 mph. That’s the biggest swell of the whole forecast, and it’s clean. Over 5ft so it might be a bit much for beginners, but for anyone with a bit of experience, that’s a proper session with some grunt.
Water temp is sitting at 73°F right now, which is 4°F warmer than normal for this time of year at Blacks Beach—very notable, so you can leave the wetsuit at home.
Overall, it’s a slow start but the second week saves it. The clear standout is Friday the 4th of September, with Saturday the 5th early and Monday the 7th afternoon as strong secondary options. Stay patient.
Rusty
Short Range ForecastMostly dry. Warm (max 26°C on Tue morning, min 23°C on Mon morning). Wind will be generally light. | Days 4-6 Weather SummaryMostly dry. Warm (max 27°C on Fri morning, min 22°C on Sat night). Wind will be generally light. | ||||||||||||||||||||
Monday 24 | Tuesday 25 | Wednesday 26 | Thursday 27 | Friday 28 | Saturday 29 | Sunday 30 | |||||||||||||||
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) | SW 18 | SW 17 | SW 17 | SW 16 | SW 16 | SW 16 | SW 16 | SW 16 | SW 15 | SW 14 | SW 14 | SSW 18 | SSW 16 | SSW 19 | SSW 17 | SSW 16 | SSW 16 | SSW 16 | SSW 15 | SSW 14 | SSW 14 |
Wave Graph | |||||||||||||||||||||
249 | 175 | 330 | 264 | 208 | 203 | 302 | 196 | 171 | 169 | 132 | 270 | 343 | 419 | 932 | 667 | 788 | 697 | 537 | 400 | 389 | |
Wind (km/h) | |||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | on | cross-on | glassy | on | on | cross-on | cross-on | cross-on | glassy | cross-on | cross-on | glassy | cross-on | on | glassy | cross-on | on | cross-on | cross-on | cross-on | cross-on |
High Tide | 9:01AM1.19m | 7:40PM1.74m | 9:17AM1.24m | 8:14PM1.81m | 9:35AM1.31m | 8:46PM1.84m | 9:55AM1.38m | 9:19PM1.82m | 10:16AM1.46m | 9:52PM1.76m | 10:39AM1.53m | 10:28PM1.64m | 11:04AM1.60m | 11:08PM1.47m | |||||||
Low Tide | 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 | 3:49PM0.42m | 4:24AM0.02m | 4:27PM0.36m | 4:47AM0.13m | 5:10PM0.31m | ||||||||
6:18 | — | — | 6:18 | — | — | 6:18 | — | — | 6:20 | — | — | 6:20 | — | — | 6:20 | — | — | 6:22 | — | — | |
— | 7:23 | — | — | 7:22 | — | — | 7:21 | — | — | 7:20 | — | — | 7:19 | — | — | 7:17 | — | — | 7:15 | — | |
mm | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
Temp °C | 25 | 24 | 23 | 26 | 26 | 25 | 26 | 25 | 24 | 25 | 25 | 24 | 27 | 26 | 25 | 25 | 25 | 23 | 23 | 23 | 21 |
Feels °C | 27 | 25 | 25 | 27 | 27 | 26 | 27 | 25 | 27 | 26 | 25 | 26 | 28 | 26 | 27 | 25 | 25 | 25 | 23 | 23 | 22 |
Swell 1 Height (m) Direction Period (s) | SW 18 | SW 17 | SW 17 | SW 16 | S 13 | S 13 | S 12 | S 12 | S 11 | S 12 | S 11 | S 10 | S 9 | S 9 | SSW 17 | SSW 16 | SSW 16 | SSW 16 | W 8 | W 8 | W 7 |
249 | 175 | 330 | 264 | 225 | 663 | 547 | 517 | 408 | 472 | 332 | 194 | 108 | 103 | 932 | 667 | 788 | 697 | 172 | 149 | 134 | |
Swell 2 Height (m) Direction Period (s) | W 6 | SSW 13 | S 13 | S 13 | SW 16 | SW 16 | SW 16 | SW 16 | SW 15 | SW 14 | SW 14 | SSW 18 | SSW 16 | SSW 19 | S 8 | WNW 9 | WNW 9 | W 9 | SSW 15 | SSW 14 | SSW 14 |
18 | 93 | 126 | 128 | 208 | 203 | 302 | 196 | 171 | 169 | 132 | 270 | 343 | 419 | 51 | 126 | 138 | 181 | 537 | 400 | 389 | |
Swell 3 Height (m) Direction Period (s) | SSW 12 | W 6 | W 5 | W 6 | S 12 | W 6 | W 6 | W 6 | WNW 6 | W 7 | W 8 | SW 13 | W 9 | SW 13 | W 10 | S 9 | S 9 | S 8 | S 8 | S 13 | S 12 |
87 | 17 | 8 | 16 | 101 | 15 | 41 | 30 | 13 | 33 | 42 | 111 | 39 | 87 | 74 | 39 | 39 | 21 | 10 | 89 | 104 | |
Wind waves Height (m) Direction Period (s) | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
— | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | |
Nearest Offshore or Glassy | |||||||||||||||||||||
Distance (km) | 27 | 261 | 0 | 26 | 26 | 23 | 125 | 74 | 0 | 74 | 5 | 0 | 125 | 27 | 0 | 5 | 27 | 27 | 27 | 27 | 23 |
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.











