Surf Forecasts:
Blacks Beach surf forecast from 11 Sep 2026:
- Best quality surf: Wednesday 16 Sep, 8AM (local time) - 3ft (0.9m), 17s period, SSW swell with glassy winds.
- Most powerful swell: Wednesday 16 Sep, 8AM (local time) - 3ft (0.9m), 17s period, SSW swell with 475 kJ wave energy.
- Next surfable swell (1★+): Tuesday 15 Sep, 5AM (local time) - 2ft (0.6m), 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 Tuesday (Sep 15) at 5AM. The primary swell is predicted to be 0.6m and 17s period with a secondary swell of 0.8m and 9s. 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 0.9m 17s and forecast to arrive on Wednesday (Sep 16) at 8AM. Winds are predicted to be glassy at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 0.7m 12s period and expected on Thursday (Sep 17) at 2AM.
| Wave Type | Time (PDT) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | 5AM (Tue 15th Sep) | 2ft (0.6m) 17s |
| Best Surf | 8AM (Wed 16th Sep) | 3ft (0.9m) 17s |
| Most Powerful | 8AM (Wed 16th Sep) | 3ft (0.9m) 17s |
Table - best surf conditions forecast for Blacks Beach over the next 16 days.
The Lowdown
Alright, this is Rusty. Let’s talk about what’s on the table for Blacks Beach.
Right now, we’ve got a stretch ahead that’s going to test your patience. The next few days are pretty grim. Friday the 11th morning starts off with a 3ft SW swell, period a solid 16 seconds, but that cross-shore wind from the SSW at 12 mph is putting a chop on it. Water’s sitting at 72°, which is much warmer than normal for this time of year – that’s a 4° anomaly, so you’ll feel that difference. But don’t get excited; the surf quality is marginal at best with questionable tide. Friday afternoon and through Saturday the 12th, it drops off and stays poor. Sunday the 13th has a brief bump in size to 4ft, but the period crashes to 7 seconds – that’s weak, short-period wind swell, and it’s messy.
Monday the 14th morning shows 4ft from the west with an 8-second period and cross-shore wind. Combined energy is 432 (moderate), but it’s still a poor call. Honestly, from Friday the 11th right through to Thursday the 25th of September, almost every session is rated poor or marginal. There are a few moments – like Saturday the 19th and Sunday the 20th – where the wind turns light and onshore, and the swell holds at 3ft to 3ft from the SW with a long 18-second period. Combined energy climbs to 652 on the Sunday morning (strong). But the call is still marginal because of tide or texture. That long-period groundswell is best for a point or reef, and Blacks is an exposed beach, so those long gaps between sets might make it frustrating.
The one period that stands out as the best on offer is Saturday the 19th afternoon and Sunday the 20th. On Sunday morning, you’ve got 3ft from the SW, 18-second period, light onshore wind, and that strong 652 energy reading. It’s not huge, but it’s the cleanest window we’ve got. It’s still only a marginal call, so temper your expectations. Crowds are often a factor here, so expect company.
The rest of the run into the last week of September is small – 2ft to 3ft – and mostly poor. Not worth paddling out for. If you’re a kite surfer, that stretch with consistent SW swell and cross-onshore breeze might look more interesting than paddle surfing.
Rusty
Short Range ForecastMostly dry. Warm (max 25°C on Fri afternoon, min 21°C on Sat night). Wind will be generally light. | Days 4-6 Weather SummaryMostly dry. Warm (max 23°C on Mon afternoon, min 19°C on Tue night). Wind will be generally light. | ||||||||||||||||||||
Friday 11 | Saturday 12 | Sunday 13 | Monday 14 | Tuesday 15 | Wednesday 16 | Thursday 17 | |||||||||||||||
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 15 | SW 15 | SW 14 | SW 14 | SW 14 | SSW 13 | W 7 | W 10 | W 8 | SW 18 | SW 17 | SW 16 | SW 16 | SW 16 | SSW 17 | SSW 17 | SSW 16 | SSW 16 | SSW 15 | SSW 14 |
Wave Graph  | |||||||||||||||||||||
 kJ | 471 | 360 | 309 | 248 | 208 | 158 | 131 | 131 | 225 | 200 | 192 | 188 | 163 | 157 | 157 | 475 | 164 | 291 | 280 | 246 | 239 |
Wind (km/h) | |||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | cross | cross | cross | cross-on | on | cross-on | cross-on | cross-on | cross | cross | cross-on | cross-on | cross-on | cross-on | glassy | cross-on | on | cross-on | on | cross-on | cross-on |
High Tide | 10:00AM1.66m | 10:03PM1.71m | 10:28AM1.70m | 10:44PM1.53m | 10:55AM1.70m | 11:28PM1.34m | 11:22AM1.67m | 00:17AM1.15m | 11:51AM1.60m | 1:23AM0.98m | 12:23PM1.51m | 1:09PM1.41m | |||||||||
Low Tide | 3:58PM0.20m | 4:15AM0.11m | 4:40PM0.16m | 4:41AM0.28m | 5:24PM0.18m | 5:04AM0.45m | 6:10PM0.23m | 5:24AM0.62m | 7:05PM0.30m | 5:36AM0.78m | 8:21PM0.37m | 10:08PM0.39m | |||||||||
 | |  | | |  | | | | | | | | | | | | | | | | |
 | 6:28 | — | — | 6:30 | — | — | 6:31 | — | — | 6:31 | — | — | 6:31 | — | — | 6:33 | — | — | 6:33 | — | — |
 | — | 7:00 | — | — | 6:59 | — | — | 6:58 | — | — | 6:57 | — | — | 6:54 | — | — | 6:53 | — | — | 6:52 | — |
mm | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
Temp °C | 24 | 25 | 23 | 23 | 23 | 22 | 23 | 23 | 21 | 22 | 23 | 21 | 22 | 22 | 20 | 21 | 21 | 20 | 22 | 22 | 21 |
Feels °C | 24 | 25 | 25 | 23 | 23 | 24 | 23 | 23 | 23 | 21 | 22 | 23 | 22 | 21 | 21 | 21 | 20 | 21 | 22 | 21 | 22 |
Swell 1 Height (m) Direction Period (s) | SW 16 | SW 15 | SW 15 | W 6 | W 6 | W 6 | W 7 | W 7 | W 10 | W 8 | W 8 | W 9 | W 9 | W 9 | W 8 | SSW 17 | SSW 17 | SSW 16 | SSW 16 | SSW 15 | SSW 14 |
| kJ | 471 | 360 | 309 | 51 | 38 | 61 | 131 | 131 | 225 | 200 | 117 | 99 | 97 | 76 | 49 | 475 | 164 | 291 | 280 | 246 | 239 |
Swell 2 Height (m) Direction Period (s) | W 6 | W 6 | W 6 | SW 14 | SW 14 | SW 14 | SSW 13 | SW 13 | SW 13 | SW 18 | SW 18 | SW 17 | SW 16 | SW 16 | SW 16 | W 6 | SW 15 | S 12 | S 10 | S 12 | S 10 |
| kJ | 38 | 25 | 24 | 248 | 208 | 158 | 120 | 87 | 85 | 108 | 192 | 188 | 163 | 157 | 157 | 19 | 84 | 129 | 47 | 71 | 78 |
Swell 3 Height (m) Direction Period (s) | SSW 10 | S 10 | S 9 | S 10 | S 9 | S 9 | S 8 | SW 19 | SW 19 | SW 13 | SW 12 | SW 12 | SW 12 | SSW 20 | SSW 18 | SSE 9 | W 6 | W 5 | SW 21 | S 9 | SW 21 |
| kJ | 21 | 17 | 16 | 29 | 28 | 23 | 12 | 130 | 127 | 84 | 38 | 38 | 37 | 127 | 109 | 16 | 10 | 9 | 160 | 26 | 212 |
Wind waves Height (m) Direction Period (s) | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | W 3 | W 4 |
| kJ | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | 5 | 9 |
Nearest Offshore or Glassy | |||||||||||||||||||||
Distance (km) | 125 | 5 | 5 | 5 | 27 | 0 | 5 | 27 | 5 | 7 | 27 | 5 | 125 | 27 | 0 | 27 | 27 | 8 | 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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