
Surf Forecasts:
Blacks Beach surf forecast from 5 Sep 2026:
- Best quality surf: Wednesday 9 Sep, 2AM (local time) - 4.5ft (1.3m), 11s period, SSW swell with glassy winds.
- Most powerful swell: Monday 7 Sep, 5AM (local time) - 6ft (1.8m), 14s period, SSW swell with 1,363 kJ wave energy.
- Next surfable swell (1★+): Wednesday 9 Sep, 2AM (local time) - 4.5ft (1.3m), 11s 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 2AM. The primary swell is predicted to be 1.3m and 11s period with a secondary swell of 0.6m 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 1.8m 14s and forecast to arrive on Monday (Sep 07) at 5AM. Winds are predicted to be cross-onshore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 1.9m 14s period and expected on Sunday (Sep 06) at 8AM.
| Wave Type | Time (PDT) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | 2AM (Wed 9th Sep) | 4.5ft (1.3m) 11s |
| Best Surf | 2AM (Wed 9th Sep) | 4.5ft (1.3m) 11s |
| Most Powerful | 5AM (Mon 7th Sep) | 6ft (1.8m) 14s |
Table - best surf conditions forecast for Blacks Beach over the next 16 days.
The Lowdown
G’day, it’s Rusty here. Look, I’ll level with you – Blacks Beach isn’t giving us much to shout about over the next couple of weeks. There’s one solid window early, then it dries up fast.
Saturday morning, September 5th – that’s your shot. Clean 3ft from the SSW with a 16-second period – proper groundswell. Light west wind, near glassy. The combined energy is 578 – moderate – and the water temp is 73°, which is 5° warmer than average for this time of year, so it’ll feel nice. It’s not big, but with that long period and offshore breeze, it’ll have some real shape. This is the best on offer, hands down.
But don’t sleep on it – Saturday afternoon flips to cross-on and gets choppy. Sunday drops to 2ft and goes crumbly. Monday the 7th has more size – around 6ft – but the period drops to 13 seconds and the wind’s cross-on and messy. Tuesday’s similar – 5ft, but again, choppy.
From Wednesday on, it’s mostly small and junky. A few days with 3ft and long periods, but the wind’s never right. By the 12th and 13th, it’s down to under 3ft with 8-second windswell – forget it.
The second week – from the 14th onward – is basically flat. 1ft to 3ft, mostly long-period leftovers with no size. There’s a 19-second pulse on the 18th and 20th, but with only 2ft to 3ft, that’s not worth a paddle.
Blacks Beach (San Diego) is usually pretty consistent, but consistency doesn’t mean it’s good. The one morning – Saturday the 5th – is your window. Crowds are often there, but early with clean 3ft groundswell, you’ll find some. Swell direction is SSW, not the ideal WNW, but with the long period it should still shape up.
And with all the chop and cross-on days, some afternoons are going to be better for kites than surfboards. Don’t expect much else – keep your eye on that Saturday dawn patrol, and let the rest slide.
Rusty out.
Short Range ForecastSome drizzle, heaviest during Sat afternoon. Warm (max 28°C on Sun afternoon, min 21°C on Sat morning). Wind will be generally light. | Days 4-6 Weather SummaryMostly dry. Warm (max 26°C on Tue morning, min 22°C on Thu night). Wind will be generally light. | ||||||||||||||||||||
Saturday 5 | Sunday 6 | Monday 7 | Tuesday 8 | Wednesday 9 | Thursday 10 | Friday 11 | |||||||||||||||
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) | SSW 16 | SW 16 | W 10 | WNW 10 | SSW 16 | SSW 15 | SSW 13 | SSW 13 | SSW 12 | SSW 13 | SSW 11 | SSW 11 | SSW 10 | SW 16 | SW 17 | SW 17 | SW 16 | SW 16 | SW 15 | SW 15 | SW 15 |
Wave Graph | |||||||||||||||||||||
512 | 628 | 56 | 85 | 429 | 596 | 1156 | 1121 | 852 | 865 | 581 | 359 | 214 | 278 | 419 | 547 | 496 | 483 | 465 | 318 | 309 | |
Wind (km/h) | |||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | on | cross-on | cross-on | cross | cross | cross-on | cross-on | cross-on | cross-on | cross-on | cross-on | glassy | on | cross-on | glassy | cross-on | cross-on | cross | cross-on | cross-on | cross |
High Tide | 4:44PM1.68m | 7:45AM1.14m | 6:01PM1.78m | 8:11AM1.26m | 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 | ||||||||
Low Tide | 9:52AM0.98m | 00:42AM-0.03m | 11:47AM0.90m | 1:30AM-0.14m | 12:54PM0.73m | 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 | |||||||
6:24 | — | — | 6:26 | — | — | 6:26 | — | — | 6:26 | — | — | 6:28 | — | — | 6:28 | — | — | 6:28 | — | — | |
— | 7:08 | — | — | 7:07 | — | — | 7:06 | — | — | 7:05 | — | — | 7:02 | — | — | 7:01 | — | — | 7:00 | — | |
mm | — | 1 | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
Temp °C | 23 | 24 | 24 | 24 | 28 | 24 | 25 | 25 | 24 | 26 | 26 | 25 | 26 | 26 | 25 | 25 | 25 | 24 | 25 | 25 | 22 |
Feels °C | 23 | 24 | 24 | 22 | 28 | 24 | 25 | 24 | 23 | 25 | 24 | 25 | 26 | 26 | 26 | 25 | 25 | 26 | 25 | 25 | 22 |
Swell 1 Height (m) Direction Period (s) | S 14 | S 13 | S 14 | S 14 | S 13 | S 12 | SSW 13 | SSW 13 | SSW 12 | SSW 13 | SSW 11 | SSW 11 | SSW 10 | SW 9 | SW 17 | SW 17 | SW 16 | SW 16 | W 7 | SW 15 | W 7 |
637 | 796 | 1225 | 1342 | 835 | 584 | 1156 | 1121 | 852 | 865 | 581 | 359 | 208 | 125 | 419 | 547 | 496 | 483 | 74 | 318 | 152 | |
Swell 2 Height (m) Direction Period (s) | SSW 16 | SW 16 | W 10 | W 10 | SSW 16 | SSW 15 | SW 19 | SW 9 | SW 18 | SW 18 | SW 18 | W 5 | SW 16 | SW 16 | SSW 9 | SW 9 | W 6 | W 6 | SW 15 | W 7 | SW 15 |
512 | 628 | 56 | 49 | 429 | 596 | 57 | 3 | 50 | 80 | 81 | 16 | 214 | 278 | 52 | 85 | 31 | 68 | 465 | 59 | 309 | |
Swell 3 Height (m) Direction Period (s) | SW 12 | S 10 | W 13 | SW 20 | W 12 | WSW 11 | SW 10 | W 11 | SW 10 | SSW 21 | SW 21 | SW 16 | SSW 13 | SSW 12 | S 12 | S 12 | SW 11 | SW 8 | SW 7 | SW 7 | W 16 |
66 | 94 | 14 | 15 | 11 | 11 | 4 | 2 | 4 | 44 | 18 | 167 | 92 | 82 | 72 | 72 | 92 | 33 | 27 | 24 | 45 | |
Wind waves Height (m) Direction Period (s) | — | — | W 10 | WNW 10 | W 11 | WNW 4 | WNW 6 | WNW 4 | WNW 4 | WNW 5 | WNW 4 | — | — | — | W 4 | — | — | — | — | — | — |
— | — | 53 | 85 | 64 | 13 | 23 | 10 | 10 | 8 | 10 | — | — | — | 10 | — | — | — | — | — | — | |
Nearest Offshore or Glassy | |||||||||||||||||||||
Distance (km) | 26 | 27 | 11 | 9 | 8 | 26 | 26 | 27 | 11 | 27 | 26 | 0 | 27 | 74 | 0 | 125 | 186 | 5 | 5 | 5 | 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.










