Surf Forecasts:
Blacks Beach surf forecast from 16 Aug 2026:
- Best quality surf: Tuesday 18 Aug, 2AM (local time) - 3ft (0.9m), 14s period, SSW swell with glassy winds.
- Most powerful swell: Saturday 15 Aug, 11PM (local time) - 4ft (1.2m), 16s period, SSW swell with 666 kJ wave energy.
- Next surfable swell (1★+): Tuesday 18 Aug, 2AM (local time) - 3ft (0.9m), 14s 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 Tuesday (Aug 18) at 2AM. The primary swell is predicted to be 0.9m and 14s period with a secondary swell of 0.9m and 6s. 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 1.2m 16s and forecast to arrive on Saturday (Aug 15) at 11PM. Winds are predicted to be cross-shore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 0.3m 11s period and expected on Sunday (Aug 16) at 5AM.
| Wave Type | Time (PDT) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | 2AM (Tue 18th Aug) | 3ft (0.9m) 14s |
| Best Surf | 2AM (Tue 18th Aug) | 3ft (0.9m) 14s |
| Most Powerful | 11PM (Sat 15th Aug) | 4ft (1.2m) 16s |
Table - best surf conditions forecast for Blacks Beach over the next 16 days.
The Lowdown
Alright, let’s cut to it. It’s Rusty, and the short version is: most of the next two weeks are a total bust. You’re gonna be staring at a lot of flat, or just plain junky, ocean.
We start off this Saturday afternoon at Blacks Beach (San Diego) in a bad spot. There’s a small 4ft SSW swell with a 16-second period, but the cross-onshore breeze is gonna chop it all up. It’s a total non-starter. The water’s a balmy 74°, which is nearly 5 degrees above where it should be – that’s wild, like a warm bath, but the waves don't care.
Then comes the dead zone. From Sunday the 16th all the way to the 27th, it’s mostly flat or just plain bad. Swell heights hover around 2-3ft, and sometimes drop below that. You'll see some longer-period stuff in there, 14 to 17 seconds, but without any size, it’s just ocean movement. The morning winds are often light and offshore, which is a cruel joke – clean, glassy conditions with nothing to surf. The energy readings are just sad, way down in the low hundreds or below. It's a long, boring stretch.
But, and this is a big but, there’s a light at the end of the tunnel. It’s a long way off, but things start to get interesting around the 28th. Friday afternoon the 28th, the swell jumps to a solid 4ft from the SSW with a 16-second period. It’s not huge, but the energy is building. Then, Saturday morning the 29th is the one. The energy reading jumps way up over 1000, which is a serious kick. We’re looking at a 4ft SSW groundswell with a very long 17-second period. The wind is forecast to be light and offshore. This is the standout, no question. It’s a promise for the future, not a guarantee, but it’s the best thing on the table by a mile.
That long period groundswell is perfect for Blacks. It’ll wrap in with purpose. The point should hold the shape well. Saturday afternoon will still have some fun waves, but that morning is the pick. It’s two weeks away, so don’t get too attached, but it’s the one to plan for.
So, don't waste your time this week. Take a break. Then, keep your fingers crossed for that Saturday the 29th. Could be the best day we’ve had in a while. I'll be there with my eyes on the horizon.
Rusty.
Short Range ForecastMostly dry. Warm (max 23°C on Mon morning, min 19°C on Sat night). Wind will be generally light. | Days 5-7 Weather SummaryMostly dry. Warm (max 25°C on Thu morning, min 21°C on Tue night). Wind will be generally light. | |||||||||||||||||||
Sat 15 | Sunday 16 | Monday 17 | Tuesday 18 | Wednesday 19 | Thursday 20 | Friday 21 | ||||||||||||||
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 | SSW 16 | SSW 15 | SSW 15 | SSW 14 | SSW 14 | SSW 14 | SSW 14 | SSW 16 | SSW 17 | SSW 15 | SSW 16 | SSW 16 | SSW 15 | SSW 14 | SSW 14 | SSW 14 | SSW 13 | SSW 13 | SSW 13 |
Wave Graph  | ||||||||||||||||||||
 kJ | 683 | 666 | 493 | 443 | 367 | 367 | 264 | 316 | 232 | 243 | 339 | 382 | 387 | 242 | 236 | 236 | 170 | 156 | 137 | 98 |
Wind (km/h) | ||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | cross-on | cross-on | on | cross-on | cross-on | on | on | glassy | on | on | cross-on | on | on | glassy | cross-on | cross-on | glassy | on | on | glassy |
High Tide | 11:43PM1.52m | 12:24PM1.56m | 00:31AM1.27m | 1:01PM1.54m | 1:34AM1.04m | 1:42PM1.49m | 3:28AM0.88m | 2:37PM1.45m | 3:54PM1.43m | 8:26AM1.03m | 5:14PM1.47m | |||||||||
Low Tide | 5:45PM0.38m | 5:59AM0.22m | 6:41PM0.41m | 6:27AM0.42m | 7:47PM0.45m | 6:50AM0.62m | 9:15PM0.47m | 7:07AM0.79m | 11:03PM0.41m | 00:25AM0.30m | 10:32AM1.01m | 1:16AM0.18m | ||||||||
 |  | | | |  | | | | | | | | | | | | | | | |
 | — | — | 6:11 | — | — | 6:13 | — | — | 6:13 | — | — | 6:13 | — | — | 6:15 | — | — | 6:16 | — | — |
 | 7:34 | — | — | 7:32 | — | — | 7:31 | — | — | 7:30 | — | — | 7:30 | — | — | 7:29 | — | — | 7:27 | — |
mm | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
Temp °C | 21 | 20 | 21 | 21 | 21 | 23 | 23 | 22 | 23 | 23 | 22 | 24 | 24 | 22 | 25 | 24 | 23 | 25 | 25 | 23 |
Feels °C | 20 | 21 | 21 | 20 | 21 | 24 | 22 | 23 | 23 | 23 | 24 | 25 | 24 | 24 | 26 | 24 | 25 | 26 | 25 | 25 |
Swell 1 Height (m) Direction Period (s) | SSW 16 | SSW 16 | SSW 15 | SSW 15 | SSW 14 | SSW 14 | W 6 | W 6 | W 7 | W 7 | SSW 15 | SSW 16 | SSW 16 | SSW 15 | SSW 14 | SSW 14 | SSW 14 | SSW 13 | SSW 13 | SSW 13 |
| kJ | 683 | 666 | 493 | 443 | 367 | 367 | 60 | 64 | 106 | 81 | 339 | 382 | 387 | 242 | 236 | 236 | 170 | 156 | 137 | 98 |
Swell 2 Height (m) Direction Period (s) | S 11 | W 4 | W 5 | S 10 | S 10 | W 6 | SSW 14 | SSW 14 | SSW 16 | SSW 17 | W 8 | W 8 | W 8 | W 7 | W 6 | W 7 | W 5 | W 6 | W 6 | W 7 |
| kJ | 37 | 10 | 12 | 18 | 8 | 47 | 264 | 316 | 232 | 243 | 68 | 80 | 63 | 26 | 19 | 23 | 13 | 20 | 21 | 21 |
Swell 3 Height (m) Direction Period (s) | W 11 | S 11 | S 11 | W 11 | W 10 | S 10 | SSW 18 | S 10 | SSW 13 | SSW 13 | SW 19 | SW 20 | W 14 | SW 18 | SW 19 | WNW 13 | WNW 12 | SW 18 | SSW 16 | SW 17 |
| kJ | 10 | 20 | 20 | 9 | 8 | 8 | 32 | 7 | 114 | 98 | 15 | 16 | 4 | 50 | 56 | 16 | 27 | 81 | 51 | 47 |
Wind waves Height (m) Direction Period (s) | W 4 | — | WNW 5 | W 5 | W 6 | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
| kJ | 7 | — | 14 | 27 | 40 | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
Nearest Offshore or Glassy | ||||||||||||||||||||
Distance (km) | 27 | 26 | 26 | 27 | 26 | 26 | 26 | 0 | 27 | 26 | 5 | 27 | 27 | 0 | 76 | 5 | 0 | 27 | 27 | 0 |
Best forecast wave conditions in San Diego County | ||||||||||||||||||||
Best forecast wave conditions in United States | ||||||||||||||||||||
Header Global | ||||||||||||||||||||
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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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