Surf Forecasts:
Blacks Beach surf forecast from 25 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★+): Tuesday 25 Aug, 8PM (local time) - 2ft (0.6m), 16s 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 Tuesday (Aug 25) at 8PM. The primary swell is predicted to be 0.6m and 16s 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 1.5m 13s period and expected on Wednesday (Aug 26) at 2AM.
| Wave Type | Time (PDT) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | 8PM (Tue 25th Aug) | 2ft (0.6m) 16s |
| 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, folks. Rusty here. Let’s get into it.
Alright, let’s be straight with you. The next 16 days are looking pretty flat and lacklustre for Blacks Beach. We’ve got a long stretch of real small surf and mostly marginal conditions. The water is running warm, sitting at 73° with an anomaly 5° above normal, which is notably warmer than we’d expect this time of year.
The first solid sign of anything worth paddling out for is around Saturday, August 29th. Through the morning and afternoon, we’ll see a SSW swell around 4ft to 4ft, with a period of 16 seconds – that’s a proper long period groundswell. The combined energy is moderate (790 – 862), and the wind is offshore from the W to WSW, light breeze. That’s clean. The catch is, the swell direction is SSW, and the optimum for Blacks is WNW, so it’s not a perfect match. It’s a better bet for the more experienced crew, given the size and the point break setup. It’s marginal, but it’s the best we’ve got in the first week.
Then we go into a bit of a lull again. The next window that sparks some interest is on Thursday, September 3rd into the following weekend. The swell starts to build again from the SSW, holding around 3ft to 4ft, with the period stretching out to 17-18 seconds. That’s serious period. The combined energy climbs into the mid-to-high 700s, moderate but pushing strong. The wind stays light, mostly offshore or light cross-onshore. The tide conditions will be the real puzzle here, as the forecast keeps flagging “questionable tide conditions.” The best of this run looks to be Friday, September 4th afternoon, with a 4ft SSW swell, 17-second period, and a light WSW breeze. It’s still not the ideal WNW direction, but for a point break like Blacks, that long period groundswell can still wrap in nicely. Just keep in mind, with that long period, it can stand up pretty quick and be a bit more suited to the experienced surfer.
Overall, the standout is that Saturday, August 29th morning window for the cleanest conditions with an offshore wind, and the Friday, September 4th afternoon for the bigger, longer period energy. Both are marginal, but they’re the only two windows worth circling on the calendar. The rest of the run is small, choppy, or just plain poor.
Rusty.
Short Range ForecastMostly dry. Warm (max 26°C on Wed morning, min 22°C on Tue morning). Wind will be generally light. | Days 4-6 Weather SummaryMostly dry. Warm (max 27°C on Fri morning, min 21°C on Sun night). Wind will be generally light. | ||||||||||||||||||||
Tuesday 25 | Wednesday 26 | Thursday 27 | Friday 28 | Saturday 29 | Sunday 30 | Monday 31 | |||||||||||||||
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 16 | SW 16 | SW 16 | SW 16 | 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 14 | SSW 13 |
Wave Graph  | |||||||||||||||||||||
 kJ | 264 | 208 | 203 | 302 | 196 | 171 | 169 | 167 | 270 | 274 | 470 | 932 | 667 | 788 | 749 | 537 | 400 | 321 | 316 | 161 | 156 |
Wind (km/h) | |||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | on | on | on | cross-on | on | cross | cross-on | cross-on | glassy | glassy | on | on | on | on | cross-on | cross-on | on | cross-on | on | on | glassy |
High Tide | 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 | 11:32AM1.65m | 11:54PM1.27m | |||||||
Low Tide | 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 | 5:11AM0.27m | 5:59PM0.30m | ||||||||
 | |  | |  |  | | | | | | | | | | | | | | | | |
 | 6:18 | — | — | 6:18 | — | — | 6:20 | — | — | 6:20 | — | — | 6:20 | — | — | 6:22 | — | — | 6:22 | — | — |
 | — | 7:22 | — | — | 7:21 | — | — | 7:20 | — | — | 7:19 | — | — | 7:17 | — | — | 7:15 | — | — | 7:15 | — |
mm | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
Temp °C | 24 | 24 | 23 | 26 | 25 | 24 | 26 | 26 | 25 | 27 | 27 | 25 | 26 | 26 | 23 | 24 | 24 | 22 | 23 | 23 | 22 |
Feels °C | 26 | 25 | 25 | 27 | 25 | 26 | 27 | 27 | 27 | 29 | 27 | 27 | 27 | 27 | 25 | 24 | 23 | 23 | 23 | 22 | 23 |
Swell 1 Height (m) Direction Period (s) | SW 16 | S 13 | S 13 | S 12 | S 12 | S 10 | S 12 | S 11 | S 10 | S 9 | SSW 19 | SSW 17 | SSW 16 | SSW 16 | SSW 16 | W 8 | W 7 | W 7 | WNW 7 | WNW 7 | W 6 |
| kJ | 264 | 285 | 784 | 556 | 446 | 305 | 389 | 274 | 154 | 101 | 470 | 932 | 667 | 788 | 749 | 142 | 134 | 100 | 79 | 77 | 54 |
Swell 2 Height (m) Direction Period (s) | S 13 | SW 16 | SW 16 | SW 16 | SW 16 | SW 15 | SW 14 | SW 14 | SSW 18 | SW 16 | S 8 | W 7 | W 7 | S 8 | W 7 | SSW 15 | SSW 14 | SSW 14 | SSW 14 | S 12 | SSW 13 |
| kJ | 128 | 208 | 203 | 302 | 196 | 171 | 169 | 167 | 270 | 274 | 69 | 52 | 109 | 19 | 120 | 537 | 400 | 321 | 316 | 187 | 156 |
Swell 3 Height (m) Direction Period (s) | W 6 | S 12 | W 6 | W 6 | W 6 | WNW 6 | SSW 19 | WNW 8 | SW 13 | W 11 | W 8 | S 8 | SSW 8 | S 16 | S 9 | S 13 | S 12 | S 12 | S 12 | SSW 14 | S 11 |
| kJ | 16 | 101 | 19 | 29 | 20 | 13 | 140 | 22 | 113 | 86 | 45 | 33 | 20 | 5 | 14 | 89 | 112 | 153 | 144 | 161 | 114 |
Wind waves Height (m) Direction Period (s) | — | — | — | — | — | — | — | — | — | — | — | — | — | W 7 | — | — | — | — | — | — | — |
| kJ | — | — | — | — | — | — | — | — | — | — | — | — | — | 103 | — | — | — | — | — | — | — |
Nearest Offshore or Glassy | |||||||||||||||||||||
Distance (km) | 27 | 27 | 2 | 125 | 27 | 5 | 74 | 159 | 0 | 0 | 26 | 15 | 27 | 26 | 16 | 27 | 27 | 27 | 27 | 27 | 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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