Surf Forecasts:
Blacks Beach surf forecast from 16 Aug 2026:
- Best quality surf: Tuesday 18 Aug, 11PM (local time) - 2.5ft (0.8m), 14s period, SSW swell with glassy winds.
- Most powerful swell: Sunday 16 Aug, 2PM (local time) - 3.5ft (1.0m), 15s period, SSW swell with 455 kJ wave energy.
- Next surfable swell (1★+): Tuesday 18 Aug, 11PM (local time) - 2.5ft (0.8m), 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 11PM. The primary swell is predicted to be 0.8m and 14s period with a secondary swell of 0.8m and 8s. 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 15s and forecast to arrive on Sunday (Aug 16) at 2PM. Winds are predicted to be onshore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 0.3m 10s period and expected on Sunday (Aug 16) at 2PM.
| Wave Type | Time (PDT) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | 11PM (Tue 18th Aug) | 2.5ft (0.8m) 14s |
| Best Surf | 11PM (Tue 18th Aug) | 2.5ft (0.8m) 14s |
| Most Powerful | 2PM (Sun 16th Aug) | 3.5ft (1.0m) 15s |
Table - best surf conditions forecast for Blacks Beach over the next 16 days.
The Lowdown
Alright, grab your board and let’s have a look at the next couple of weeks. To be straight with you, this is a pretty grim run for Blacks Beach. We’ve got a long stretch ahead with very little to get excited about. The surf is small, the conditions are mostly messy, and the energy is weak for what this place can do. Let’s break it down.
From now through the first week, we’ve got a lot of days where the surf is barely a ripple. The combined swell energy starts at 505 and drops fast, staying mostly between 200 and 400 — that’s low energy, weak stuff. Swell heights hover around 2 ft to 3 ft, coming from the SSW, but the wind is almost always on it or cross-on, keeping things choppy or at best marginal. The water temp is 73°, which is a full 5° above average — that’s notably warm for this time of year, but it won’t make the waves any better.
Honestly, there’s not one standout session in the whole forecast. The only time the energy bumps up a little is on the afternoon of the 29th, with a combined energy of 566 and a 3 ft SSW swell, but the wind is still cross-on, keeping it marginal. The period on that one is 16 seconds, which means it’s a groundswell with some punch, but at a beach break like Blacks, that long period can make it wall up and close out. Still, if you’re desperate, that Saturday afternoon on the 29th is probably the best you’ll get — but it’s not worth calling a standout.
The rest of the time? Barely worth paddling out. A few mornings have offshore wind from the west, but the swell is too small — 2 ft to 2 ft — to do anything with. The only silver lining is that Blacks is a consistent break, so this kind of flat spell isn’t the norm. It’s just one of those windows where the ocean is taking a nap.
Hang in there. The long-range looks like it might try to pick up a little around the 29th and 30th, but it’s far out and could change. For now, maybe break out the kite gear if the wind gets up, because it’s not doing much for a paddle surfer.
Rusty
Short Range ForecastMostly dry. Warm (max 23°C on Mon morning, min 19°C on Sun morning). Wind will be generally light. | Days 4-6 Weather SummaryMostly dry. Warm (max 25°C on Fri morning, min 22°C on Wed morning). Wind will be generally light. | ||||||||||||||||||||
Sunday 16 | Monday 17 | Tuesday 18 | Wednesday 19 | Thursday 20 | Friday 21 | Saturday 22 | |||||||||||||||
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 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 | SSW 13 | SSW 14 | SSW 15 |
Wave Graph  | |||||||||||||||||||||
 kJ | 493 | 443 | 367 | 367 | 264 | 316 | 232 | 243 | 339 | 382 | 387 | 246 | 236 | 236 | 170 | 156 | 137 | 98 | 92 | 239 | 222 |
Wind (km/h) | |||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | on | cross-on | cross-on | on | on | cross-on | on | on | glassy | on | on | glassy | cross-on | cross-on | glassy | on | cross-on | glassy | on | on | glassy |
High Tide | 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 | 8:32AM1.09m | 6:16PM1.55m | |||||||||
Low Tide | 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 | 12:09PM0.97m | 1:53AM0.09m | |||||||||
 | |  | | | | | | | | | | | | | |  |  | | | | |
 | 6:11 | — | — | 6:13 | — | — | 6:13 | — | — | 6:13 | — | — | 6:15 | — | — | 6:16 | — | — | 6:16 | — | — |
 | — | 7:32 | — | — | 7:31 | — | — | 7:30 | — | — | 7:30 | — | — | 7:29 | — | — | 7:27 | — | — | 7:25 | — |
mm | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
Temp °C | 20 | 21 | 21 | 23 | 23 | 22 | 23 | 23 | 22 | 24 | 24 | 22 | 24 | 24 | 22 | 25 | 24 | 23 | 26 | 25 | 24 |
Feels °C | 20 | 20 | 22 | 23 | 22 | 23 | 23 | 23 | 23 | 24 | 24 | 23 | 25 | 25 | 24 | 26 | 24 | 25 | 26 | 25 | 25 |
Swell 1 Height (m) Direction Period (s) | SSW 15 | SSW 15 | SSW 14 | SSW 14 | SSW 14 | 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 | W 7 | SSW 14 | SSW 15 |
| kJ | 493 | 443 | 367 | 367 | 264 | 64 | 94 | 79 | 339 | 382 | 387 | 246 | 236 | 236 | 170 | 156 | 137 | 98 | 33 | 239 | 222 |
Swell 2 Height (m) Direction Period (s) | W 5 | S 10 | W 5 | W 6 | SSW 18 | SSW 14 | SSW 16 | SSW 17 | W 8 | W 7 | W 6 | W 6 | W 6 | W 6 | W 7 | W 7 | W 6 | W 7 | SSW 13 | W 7 | W 7 |
| kJ | 12 | 18 | 28 | 35 | 32 | 316 | 232 | 243 | 84 | 66 | 41 | 18 | 19 | 31 | 24 | 22 | 21 | 14 | 92 | 32 | 44 |
Swell 3 Height (m) Direction Period (s) | S 11 | W 11 | S 10 | S 10 | S 10 | 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 | SW 18 | SW 19 | SW 19 |
| kJ | 20 | 9 | 8 | 8 | 8 | 7 | 114 | 98 | 15 | 16 | 4 | 50 | 56 | 16 | 27 | 81 | 51 | 47 | 51 | 57 | 58 |
Wind waves Height (m) Direction Period (s) | — | W 5 | — | — | W 6 | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
| kJ | — | 19 | — | — | 47 | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
Nearest Offshore or Glassy | |||||||||||||||||||||
Distance (km) | 27 | 27 | 12 | 26 | 27 | 15 | 145 | 26 | 0 | 27 | 27 | 0 | 27 | 199 | 0 | 27 | 186 | 0 | 27 | 27 | 0 |
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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