Surf Forecasts:
Blacks Beach surf forecast from 27 Aug 2026:
- Best quality surf: Saturday 29 Aug, 5AM (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★+): Thursday 27 Aug, 11PM (local time) - 2.5ft (0.7m), 14s 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 Thursday (Aug 27) at 11PM. The primary swell is predicted to be 0.7m and 14s 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 onshore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 1.3m 12s period and expected on Tuesday (Sep 01) at 8AM.
| Wave Type | Time (PDT) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | 11PM (Thu 27th Aug) | 2.5ft (0.7m) 14s |
| Best Surf | 5AM (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, this is Rusty, checkin' in with the outlook for Blacks Beach. The water is sittin' at a balmy 73°F, which is 5°F warmer than usual for this time of year – that's seriously warm, almost like a hot tub. We're in a bit of a flat spell right now, but hang tight, because there's some action brewing for the end of the month.
The next few days, from Wednesday the 26th through to the start of September, are gonna be a write-off. The swell is tiny, mostly around 1ft to 2ft, with a long period of 14 to 16 seconds but it's just not showing any energy. The combined energy is weak (215 on Wednesday), and what little wind there is is cross-onshore, keeping things choppy and messy. It's a proper lull. You'll be looking at a solid week of this, nothing really worth paddling out for.
Now, let's talk about the highlight. The first real glimmer of hope comes on Friday the 28th of August. We've got a small, clean-looking swell starting to show with offshore winds from the West at 6 mph. The swell is still only 3ft, coming from the SSW, but the period jumps to 19 seconds – that's a proper groundswell, and the combined energy will be a moderate 515. It's a marginal call, but it might just be the best window we get. Saturday the 29th and Sunday the 30th also show some promise with the swell picking up to 4ft to 4ft and offshore winds, but the conditions are still described as marginal. The long period (15-16 seconds) means it'll be a bit more powerful and there will be longer gaps between sets, which is actually good for the paddle out.
Things get a bit more interesting into the second week. There's a pulse of energy on Thursday the 3rd of September, with the swell hitting 6ft from the SSW. That's a significant jump, and the combined energy is strong at 1236. But the wind turns cross-onshore, making it choppy. For the advanced crew, this could be a session, but it's not going to be clean. The following week, from the 4th to the 10th of September, sees a mix of marginal and poor surf. The swell stays around 3ft to 5ft, and the wind is mostly onshore or cross-onshore. The standout from that period might be the 9th of September, with a 5ft SSW swell, but again, it's cross-onshore.
So, the real takeaway? The end of August, specifically Friday the 28th through Sunday the 30th, is your best bet. It's not a classic, but with that offshore wind and a groundswell building, it's the closest we'll get to something clean. After that, it's a bit of a gamble. Keep your eyes on the forecast, but for now, get your gear ready for that last weekend of August.
Rusty, out.
Short Range ForecastMostly dry. Warm (max 27°C on Fri morning, min 23°C on Wed night). Wind will be generally light. | Days 5-7 Weather SummaryMostly dry. Warm (max 26°C on Sat afternoon, min 21°C on Sun night). Wind will be generally light. | |||||||||||||||||||
Wed 26 | Thursday 27 | Friday 28 | Saturday 29 | Sunday 30 | Monday 31 | Tuesday 1 | ||||||||||||||
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 16 | SW 15 | SW 14 | SW 14 | SSW 18 | SW 16 | SSW 19 | SSW 17 | SSW 16 | SSW 16 | SSW 16 | SSW 15 | SSW 14 | SSW 14 | SSW 14 | SSW 13 | SSW 13 | SW 13 | SW 18 | SW 18 |
Wave Graph  | ||||||||||||||||||||
 kJ | 196 | 171 | 169 | 132 | 270 | 274 | 470 | 932 | 667 | 733 | 697 | 537 | 400 | 321 | 261 | 156 | 120 | 44 | 80 | 111 |
Wind (km/h) | ||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | cross-on | cross | cross-on | cross-on | glassy | on | on | on | cross-on | on | cross | on | on | on | on | on | glassy | on | on | cross-on |
High Tide | 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 | 11:32AM1.65m | 11:54PM1.27m | 12:05PM1.67m | 00:55AM1.06m | |||||||
Low Tide | 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 | 5:11AM0.27m | 5:59PM0.30m | 5:35AM0.43m | 6:59PM0.30m | |||||||
 |  |  | |  | | | | | | | | | | |  | | | | | |
 | — | — | 6:20 | — | — | 6:20 | — | — | 6:20 | — | — | 6:22 | — | — | 6:22 | — | — | 6:22 | — | — |
 | 7:21 | — | — | 7:20 | — | — | 7:19 | — | — | 7:17 | — | — | 7:15 | — | — | 7:15 | — | — | 7:14 | — |
mm | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
Temp °C | 26 | 25 | 24 | 25 | 25 | 27 | 27 | 25 | 26 | 26 | 24 | 24 | 24 | 22 | 23 | 23 | 22 | 24 | 24 | 24 |
Feels °C | 27 | 28 | 26 | 26 | 28 | 29 | 28 | 28 | 27 | 27 | 26 | 24 | 23 | 23 | 23 | 23 | 23 | 23 | 22 | 23 |
Swell 1 Height (m) Direction Period (s) | S 12 | S 10 | S 12 | S 11 | S 10 | S 9 | SSW 19 | SSW 17 | SSW 16 | SSW 16 | W 8 | W 8 | W 7 | W 8 | WNW 7 | S 12 | S 11 | S 11 | S 11 | S 12 |
| kJ | 517 | 305 | 389 | 274 | 151 | 78 | 470 | 932 | 667 | 733 | 172 | 172 | 109 | 138 | 79 | 285 | 191 | 357 | 350 | 404 |
Swell 2 Height (m) Direction Period (s) | SW 16 | SW 15 | SW 14 | SW 14 | SSW 18 | SW 16 | S 8 | S 8 | WNW 8 | WNW 8 | SSW 16 | SSW 15 | SSW 14 | SSW 14 | S 12 | W 6 | S 13 | WNW 5 | SW 18 | SW 18 |
| kJ | 196 | 171 | 169 | 132 | 270 | 274 | 71 | 33 | 94 | 94 | 697 | 537 | 400 | 321 | 243 | 40 | 153 | 10 | 80 | 111 |
Swell 3 Height (m) Direction Period (s) | W 6 | WNW 7 | W 7 | WNW 8 | SW 14 | W 9 | W 8 | W 7 | S 8 | SW 12 | S 8 | S 13 | S 13 | S 12 | SSW 14 | SSW 13 | SSW 13 | SW 13 | WNW 5 | WNW 4 |
| kJ | 19 | 15 | 23 | 21 | 153 | 55 | 45 | 25 | 20 | 36 | 11 | 90 | 123 | 151 | 261 | 156 | 120 | 44 | 5 | 2 |
Wind waves Height (m) Direction Period (s) | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
| kJ | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
Nearest Offshore or Glassy | ||||||||||||||||||||
Distance (km) | 27 | 5 | 74 | 5 | 0 | 27 | 27 | 16 | 27 | 27 | 5 | 27 | 27 | 2 | 27 | 27 | 0 | 26 | 26 | 11 |
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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