
Surf Forecasts:
Blacks Beach surf forecast from 8 Sep 2026:
- Best quality surf: Thursday 10 Sep, 5AM (local time) - 3ft (0.9m), 17s period, SSW swell with glassy winds.
- Most powerful swell: Monday 7 Sep, 11PM (local time) - 5ft (1.6m), 12s period, SSW swell with 648 kJ wave energy.
- Next surfable swell (1★+): Thursday 10 Sep, 5AM (local time) - 3ft (0.9m), 17s 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 Thursday (Sep 10) at 5AM. The primary swell is predicted to be 0.9m and 17s period with a secondary swell of 0.5m and 5s. 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 1.6m 12s and forecast to arrive on Monday (Sep 07) at 11PM. Winds are predicted to be cross-onshore at the time the swell arrives.
| Wave Type | Time (PDT) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | 5AM (Thu 10th Sep) | 3ft (0.9m) 17s |
| Best Surf | 5AM (Thu 10th Sep) | 3ft (0.9m) 17s |
| Most Powerful | 11PM (Mon 7th Sep) | 5ft (1.6m) 12s |
Table - best surf conditions forecast for Blacks Beach over the next 16 days.
The Lowdown
Alright folks, Rusty here. Let’s get into it. The long-range models are showing a tricky stretch ahead for Blacks Beach. We’ve got a consistent background of swell, but the wind and quality are all over the place. The water is sitting at 73°, which is much warmer than usual for this time of year – a real treat if you’re brave enough to get out there.
The first real shot at anything decent won’t come until the afternoon of Saturday, September 20th, a full two weeks away. Before that, it’s a tough run. The period from September 7th through the 19th is almost a complete write-off.
We kick off September 7th with a solid 6 ft swell from the SSW, but it’s a total mess. The wind is a cross-on 16 mph, making it choppy and blown out. The combined energy is strong at 1007, but with those conditions, it’s not worth paddling out. The next ten days are a frustrating mix of small, weak swell and poor wind. The wind stays cross-on from the NW or SSW, keeping the surface bumpy. The swell drops to the 2 ft to 4 ft range, with periods all over the place. The energy dips into the low hundreds (319 to 558), and the wave comments are all “poor” or “marginal.” There’s nothing to get excited about.
Finally, we get a glimmer of hope on the morning of Saturday, September 20th. The swell is still small at 3 ft from the SW, but the period jumps to a very long 19 seconds. The wind goes light and variable, and the energy is solid at 705 (moderate wave energy). The only caveat is that a long-period swell like this can be a bit too straight for a beach break, but with light wind, it’s the best we’ll see. The quality remains marginal but it’s the standout of the entire run.
The following Monday, September 21st, sees a similar setup. We’ve got 4 ft from the SW with a 18-second period and light offshore winds from the W. The energy is the highest we’ve seen all forecast at 812 (moderate wave energy). This is the pick of the bunch. The water is still warm, the wind is clean, and the swell has some real grunt. It’s still a small wave, but for a beach break, it’ll be glassy and have some push. Crowds are often, so expect company.
The 22nd of September closes out the window with a drop-off. The swell dips to 3 ft, the period shortens to 16 seconds, and the energy falls to 505. The wind is still light offshore, so it’s not awful, but it’s a comedown after the weekend.
So, to sum it up: the first two weeks are a bust. The real window is Saturday, September 21st and Monday, September 22nd. The 21st is the true standout – don’t sleep on it. The forecast is a bit of a wait, but that’s the way it goes sometimes.
Rusty.
Short Range ForecastLight rain (total 2mm), mostly falling on Wed afternoon. Warm (max 29°C on Mon afternoon, min 23°C on Wed night). Wind will be generally light. | Days 5-7 Weather SummaryMostly dry. Warm (max 24°C on Thu afternoon, min 19°C on Sat night). Wind will be generally light. | |||||||||||||||||||
Mon 7 | Tuesday 8 | Wednesday 9 | Thursday 10 | Friday 11 | Saturday 12 | Sunday 13 | ||||||||||||||
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 12 | SSW 11 | SSW 10 | SSW 10 | SW 16 | SW 16 | SW 16 | SW 17 | SW 17 | SW 16 | SW 16 | SW 15 | SW 15 | SW 15 | SW 14 | SW 14 | SW 14 | W 8 | W 8 | W 8 |
Wave Graph | ||||||||||||||||||||
916 | 394 | 237 | 232 | 167 | 214 | 326 | 419 | 547 | 496 | 483 | 465 | 360 | 309 | 214 | 208 | 160 | 153 | 140 | 201 | |
Wind (km/h) | ||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | cross-on | cross-on | cross-on | cross-on | cross-on | on | cross-on | cross-on | cross-on | cross-on | cross | cross | cross | cross-on | cross-on | cross-on | cross | cross-on | cross-on | cross |
High Tide | 7:02PM1.88m | 8:37AM1.37m | 7:53PM1.94m | 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 | |||||||
Low Tide | 2:10AM-0.20m | 1:46PM0.55m | 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 | ||||||||
— | — | 6:26 | — | — | 6:28 | — | — | 6:28 | — | — | 6:28 | — | — | 6:30 | — | — | 6:31 | — | — | |
7:06 | — | — | 7:05 | — | — | 7:02 | — | — | 7:01 | — | — | 7:00 | — | — | 6:59 | — | — | 6:58 | — | |
mm | — | — | — | — | — | — | 1 | 1 | — | — | — | — | — | — | — | — | — | — | — | — |
Temp °C | 29 | 25 | 27 | 27 | 25 | 27 | 26 | 24 | 25 | 24 | 22 | 23 | 23 | 22 | 21 | 21 | 20 | 21 | 22 | 21 |
Feels °C | 28 | 25 | 27 | 27 | 25 | 27 | 26 | 26 | 25 | 24 | 23 | 22 | 22 | 23 | 20 | 20 | 21 | 20 | 21 | 22 |
Swell 1 Height (m) Direction Period (s) | SSW 12 | SSW 11 | SSW 10 | SSW 10 | SSW 9 | SW 16 | SW 16 | SW 17 | SW 17 | SW 16 | SW 16 | SW 15 | SW 15 | W 6 | W 7 | W 7 | W 7 | W 8 | W 8 | W 8 |
916 | 394 | 237 | 232 | 139 | 214 | 326 | 419 | 547 | 496 | 483 | 465 | 360 | 80 | 114 | 111 | 100 | 153 | 140 | 201 | |
Swell 2 Height (m) Direction Period (s) | W 11 | SSW 14 | SSW 13 | SSW 13 | SSW 13 | SSW 9 | SSW 12 | SSW 12 | W 6 | W 6 | W 6 | W 7 | W 6 | SW 15 | SW 14 | SW 14 | SW 14 | SW 13 | SSW 13 | SW 13 |
2 | 277 | 204 | 158 | 135 | 67 | 85 | 82 | 16 | 17 | 36 | 57 | 67 | 309 | 214 | 208 | 160 | 144 | 118 | 84 | |
Swell 3 Height (m) Direction Period (s) | SW 19 | SW 18 | SW 18 | SW 18 | SW 16 | SSW 13 | SSW 8 | W 5 | S 12 | SSW 12 | SSW 11 | SSW 10 | SSW 10 | S 9 | WSW 14 | S 9 | WSW 12 | SW 19 | SW 19 | SW 19 |
55 | 50 | 111 | 112 | 167 | 133 | 45 | 11 | 72 | 45 | 39 | 22 | 20 | 16 | 69 | 14 | 29 | 58 | 130 | 177 | |
Wind waves Height (m) Direction Period (s) | WNW 4 | WNW 4 | WNW 4 | WNW 4 | WNW 4 | W 4 | — | — | — | — | — | — | SW 6 | — | — | — | — | — | — | — |
34 | 16 | 6 | 17 | 15 | 10 | — | — | — | — | — | — | 10 | — | — | — | — | — | — | — | |
Nearest Offshore or Glassy | ||||||||||||||||||||
Distance (km) | 27 | 11 | 27 | 11 | 11 | 26 | 68 | 5 | 5 | 5 | 5 | 74 | 74 | 5 | 125 | 27 | 5 | 5 | 291 | 5 |
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.










