
Surf Forecasts:
Blacks Beach surf forecast from 9 Sep 2026:
- Best quality surf: Wednesday 9 Sep, 8AM (local time) - 2ft (0.6m), 13s period, SSW swell with glassy winds.
- Most powerful swell: Thursday 10 Sep, 8AM (local time) - 3.5ft (1.0m), 17s period, SW swell with 553 kJ wave energy.
- Next surfable swell (1★+): Wednesday 9 Sep, 8AM (local time) - 2ft (0.6m), 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 Wednesday (Sep 09) at 8AM. The primary swell is predicted to be 0.6m and 13s period with a secondary swell of 0.7m and 9s. Another secondary swell of 0.6m and 4s is also forecast. 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 Thursday (Sep 10) at 8AM. Winds are predicted to be cross-shore at the time the swell arrives.
| Wave Type | Time (PDT) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | 8AM (Wed 9th Sep) | 2ft (0.6m) 13s |
| Best Surf | 8AM (Wed 9th Sep) | 2ft (0.6m) 13s |
| Most Powerful | 8AM (Thu 10th Sep) | 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 talk about what’s going on.
Right now, we’re in a bit of a flat spell, and honestly, the next week or so is pretty uninspiring. There’s a long stretch of days where the quality just isn’t there. We’ve got a gap of several days where I honestly can’t recommend getting wet. From Wednesday the 9th through to nearly the end of the second week, the wave energy is present but the conditions let it down.
The first bit of surf to mention comes on the morning of Wednesday the 9th at Blacks Beach. We’ve got a clean, long-period swell coming out of the SW at 2ft, with a period of 16 seconds and a combined energy reading of 425 (moderate). Winds are light offshore from the West. It’s glassy, but the tide and the overall setup make it a marginal call. Water temp is about average for this time of year.
Moving into Thursday the 10th and Friday the 11th, the swell picks up a touch to 3ft, still from the SW with a very long period of 16-17 seconds, and the energy bumps up to 571-566 (moderate). But the wind swings cross-onshore and then cross-shore from the SSW, putting a chop on the surface. It’s not clean. The long period means it’ll be a groundswell, but with the onshore angle, Blacks Beach gets messy.
Saturday the 12th through to Tuesday the 16th... honestly, it’s a write-off. Swell drops, periods shorten, and the wind stays in an onshore or cross-onshore direction. The combined wave energy drops into the 200-400 range (weak to moderate). Not worth the paddle.
Now, if you’re patient, there’s a glimmer later. On Wednesday the 23rd of September, there’s a shift. The morning still looks poor with rain showers and cross-onshore wind, but the afternoon shows a real improvement. We’ve got a clean, 3ft SW swell at 15 seconds, but the wind switches to light offshore from the East. The report says “clean” and we get a score of 2. That’s the standout. The combined energy is 351 (moderate), but the offshore wind and clean conditions finally line up.
That Wednesday afternoon is your best bet for a decent session. It’s still a small wave, but for this region in this window, that’s the one to aim for. The rest of the run is marginal at best. Keep an eye on the forecasts, but for now, that Wednesday afternoon is looking like the only real highlight.
Rusty.
Short Range ForecastLight rain (total 5mm), mostly falling on Tue night. Warm (max 28°C on Tue night, min 22°C on Thu night). Wind will be generally light. | Days 5-7 Weather SummaryMostly dry. Warm (max 22°C on Fri night, min 20°C on Sat night). Wind will be generally light. | ||||||||||||||||||
Wednesday 9 | Thursday 10 | Friday 11 | Saturday 12 | Sunday 13 | Monday 14 | ||||||||||||||
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 17 | SW 17 | SW 16 | SW 16 | SW 16 | SW 15 | SW 15 | SW 14 | SW 14 | SW 14 | W 8 | W 8 | W 8 | SW 18 | SW 18 | SW 17 |
Wave Graph | |||||||||||||||||||
167 | 214 | 326 | 419 | 547 | 496 | 483 | 471 | 360 | 309 | 248 | 208 | 158 | 177 | 146 | 138 | 157 | 192 | 188 | |
Wind (km/h) | |||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | cross-on | on | on | cross | cross-on | cross-on | cross | cross | cross | cross | cross-on | cross-on | cross | cross | cross-on | cross-on | cross-on | cross-on | glassy |
High Tide | 9:05AM1.48m | 8:38PM1.92m | 9:32AM1.58m | 9:21PM1.84m | 10:00AM1.66m | 10:03PM1.71m | 10:28AM1.70m | 10:44PM1.53m | 10:55AM1.70m | 11:28PM1.34m | 11:22AM1.67m | 00:17AM1.15m | |||||||
Low Tide | 2:45AM-0.20m | 2:32PM0.40m | 3:17AM-0.14m | 3:15PM0.27m | 3:47AM-0.04m | 3:58PM0.20m | 4:15AM0.11m | 4:40PM0.16m | 4:41AM0.28m | 5:24PM0.18m | 5:04AM0.45m | 6:10PM0.23m | |||||||
— | 6:28 | — | — | 6:28 | — | — | 6:28 | — | — | 6:30 | — | — | 6:31 | — | — | 6:31 | — | — | |
— | — | 7:02 | — | — | 7:01 | — | — | 7:00 | — | — | 6:59 | — | — | 6:58 | — | — | 6:57 | — | |
mm | 4 | — | — | 1 | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
Temp °C | 28 | 27 | 26 | 24 | 25 | 25 | 23 | 23 | 23 | 22 | 21 | 22 | 21 | 21 | 22 | 21 | 21 | 21 | 20 |
Feels °C | 31 | 29 | 27 | 26 | 25 | 25 | 24 | 22 | 22 | 23 | 21 | 21 | 23 | 20 | 21 | 22 | 20 | 20 | 21 |
Swell 1 Height (m) Direction Period (s) | SSW 9 | SW 16 | SW 16 | SW 17 | SW 17 | SW 16 | SW 16 | SW 16 | SW 15 | SW 15 | W 7 | W 7 | W 7 | W 8 | W 8 | W 8 | W 8 | W 8 | W 7 |
139 | 214 | 326 | 419 | 547 | 496 | 483 | 471 | 360 | 309 | 70 | 77 | 60 | 177 | 146 | 138 | 157 | 117 | 71 | |
Swell 2 Height (m) Direction Period (s) | SSW 13 | SSW 9 | SSW 12 | W 5 | W 6 | W 6 | W 6 | W 7 | W 7 | W 6 | SW 14 | SW 14 | SW 14 | SSW 13 | SW 13 | SW 13 | SW 18 | SW 18 | SW 17 |
135 | 67 | 85 | 27 | 24 | 27 | 48 | 74 | 71 | 48 | 248 | 208 | 158 | 120 | 87 | 85 | 150 | 192 | 188 | |
Swell 3 Height (m) Direction Period (s) | SW 16 | SSW 13 | SSW 8 | SSW 12 | S 12 | SSW 12 | SSW 11 | SSW 10 | S 10 | S 9 | WSW 14 | S 9 | S 9 | S 8 | SW 19 | SW 19 | SW 13 | SSW 12 | SW 12 |
167 | 133 | 45 | 82 | 72 | 45 | 39 | 21 | 17 | 15 | 70 | 14 | 13 | 12 | 130 | 127 | 84 | 61 | 38 | |
Wind waves Height (m) Direction Period (s) | WNW 5 | WNW 4 | WNW 4 | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
24 | 11 | 15 | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | |
Nearest Offshore or Glassy | |||||||||||||||||||
Distance (km) | 26 | 27 | 27 | 5 | 5 | 74 | 5 | 125 | 74 | 5 | 7 | 27 | 5 | 125 | 216 | 5 | 125 | 27 | 0 |
Best forecast wave conditions in San Diego County | |||||||||||||||||||
Best forecast wave conditions in United States | |||||||||||||||||||
Header Global | |||||||||||||||||||
- Map Icons:
Break
Live Wave Height (m)
Live Wind Speed (km/h)
Surf Rating (10 Max)
Ocean Swells (m)
Wind Speed (km/h)
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.










