
Surf Forecasts:
Blacks Beach surf forecast from 14 Sep 2026:
- Best quality surf: Wednesday 16 Sep, 8AM (local time) - 3ft (0.9m), 17s period, SSW swell with glassy winds.
- Most powerful swell: Sunday 20 Sep, 2PM (local time) - 3ft (0.9m), 18s period, SW swell with 528 kJ wave energy.
- Next surfable swell (1★+): Tuesday 15 Sep, 11PM (local time) - 1.5ft (0.4m), 19s 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 (Sep 15) at 11PM. The primary swell is predicted to be 0.4m and 19s period with a secondary swell of 0.6m and 8s. Another secondary swell of 0.4m and 16s is also forecast. 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 18s and forecast to arrive on Sunday (Sep 20) 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 0.5m 9s period and expected on Thursday (Sep 17) at 2AM.
| Wave Type | Time (PDT) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | 11PM (Tue 15th Sep) | 1.5ft (0.4m) 19s |
| Best Surf | 8AM (Wed 16th Sep) | 3ft (0.9m) 17s |
| Most Powerful | 2PM (Sun 20th Sep) | 3ft (0.9m) 18s |
Table - best surf conditions forecast for Blacks Beach over the next 16 days.
The Lowdown
Alright, let’s have a look at the next couple of weeks. To be straight with you, it’s a bit of a slow start. We’re looking at a pretty long gap here with no real surf to get excited about. From now through to around the 18th of September, it’s mostly just small, weak, and messy. You’ll see some swell on the cards but the conditions are just not cooperating. The wind is cross-onshore or onshore for most of that time, and the wave heights are tiny – we’re talking 1 ft to 4 ft, but with short, weak periods and poor shape. The combined energy values are mostly in the low to mid hundreds, which tells you it’s just not packing any punch. It’s a proper wait.
Now, things start to look a little more interesting from the morning of Saturday the 19th. We’ve got a little bump in size – around 3 ft from the SW – and the wind is light and offshore, which is a big deal. The water temp at Blacks Beach is sitting at 73°, which is a whopping 5° warmer than normal for this time of year. That’s very unusual, so expect bathwater conditions.
The real standout comes on Sunday the 20th of September. The morning looks promising: 3 ft of SW swell, period is pushing 18 seconds – that’s proper groundswell – and combined energy hits 646, which is solid moderate energy. The wind is light and straight offshore from the WSW. That’s going to make for some clean, lined-up waves at Blacks Beach. It’s an advanced spot, exposed to the WNW, so this long-period SW groundswell will wrap in nicely. Keep in mind, though, the break is consistent and often has a crowd. With these clean conditions and that long-period swell, the sets will be well-spaced and powerful. It’s not for beginners at that size and period, but for the crew who know what they’re doing, this is the best session of the whole outlook.
After that, the energy fades again through the week, with similar small, cross-onshore conditions and combined energy dropping back into the low hundreds. There’s a little flicker on the 27th and 28th of September with some longer period swell (20 to 21 seconds) and combined energy around 520-625, but the swell height is only 2 ft to 2 ft and the wind is cross-onshore. It’s a tease, really. The longer period is good, but the size is just too small to get excited about.
So, bottom line: if you’ve got a board and you’re keen, your best bet is to pencil in Sunday the 20th of September. Clean, offshore, decent groundswell energy, and warm water. The rest of the window is mostly a write-off unless the forecasts shift.
Rusty.
Short Range ForecastMostly dry. Warm (max 22°C on Sun afternoon, min 19°C on Tue night). Wind will be generally light. | Days 5-7 Weather SummaryMostly dry. Warm (max 22°C on Fri afternoon, min 19°C on Wed night). Wind will be generally light. | |||||||||||||||||||
Sun 13 | Monday 14 | Tuesday 15 | Wednesday 16 | Thursday 17 | Friday 18 | Saturday 19 | ||||||||||||||
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 19 | W 10 | W 8 | SW 18 | SW 17 | SW 16 | SW 16 | SW 16 | SSW 17 | SSW 16 | SSW 16 | SSW 16 | SSW 15 | SSW 15 | SW 19 | SW 19 | SW 19 | SW 18 | SW 18 | SW 18 |
Wave Graph | ||||||||||||||||||||
130 | 220 | 190 | 192 | 188 | 163 | 157 | 157 | 475 | 302 | 366 | 259 | 246 | 242 | 303 | 303 | 299 | 379 | 375 | 375 | |
Wind (km/h) | ||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | on | cross-on | cross-on | cross-on | cross | cross-on | cross-on | glassy | cross-on | on | cross-on | cross-on | on | cross-on | on | cross-on | cross-on | on | on | glassy |
High Tide | 11:28PM1.34m | 11:22AM1.67m | 00:17AM1.15m | 11:51AM1.60m | 1:23AM0.98m | 12:23PM1.51m | 1:09PM1.41m | 2:38PM1.34m | 8:04AM1.10m | 4:32PM1.35m | ||||||||||
Low Tide | 5:24PM0.18m | 5:04AM0.45m | 6:10PM0.23m | 5:24AM0.62m | 7:05PM0.30m | 5:36AM0.78m | 8:21PM0.37m | 10:08PM0.39m | 11:39PM0.32m | 10:40AM1.07m | 00:33AM0.23m | |||||||||
— | — | 6:31 | — | — | 6:31 | — | — | 6:33 | — | — | 6:33 | — | — | 6:33 | — | — | 6:33 | — | — | |
6:58 | — | — | 6:57 | — | — | 6:54 | — | — | 6:53 | — | — | 6:52 | — | — | 6:51 | — | — | 6:50 | — | |
mm | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
Temp °C | 22 | 21 | 22 | 22 | 21 | 21 | 21 | 20 | 21 | 21 | 20 | 21 | 21 | 19 | 21 | 22 | 21 | 21 | 21 | 21 |
Feels °C | 22 | 22 | 21 | 21 | 21 | 20 | 20 | 21 | 21 | 20 | 21 | 21 | 20 | 19 | 20 | 21 | 21 | 21 | 20 | 22 |
Swell 1 Height (m) Direction Period (s) | W 7 | W 10 | W 8 | W 10 | W 9 | W 9 | W 9 | W 8 | SSW 17 | SSW 16 | SSW 16 | SSW 16 | SSW 15 | SSW 15 | SW 19 | SW 19 | W 6 | W 6 | SW 18 | W 6 |
56 | 220 | 190 | 186 | 99 | 76 | 79 | 49 | 475 | 302 | 366 | 259 | 246 | 242 | 303 | 303 | 43 | 49 | 375 | 64 | |
Swell 2 Height (m) Direction Period (s) | SW 13 | SW 13 | SW 18 | SW 18 | SW 17 | SW 16 | SW 16 | SW 16 | W 6 | W 6 | S 9 | S 12 | S 10 | SSW 10 | SSW 14 | SSW 13 | SSW 13 | SW 18 | W 6 | SW 18 |
87 | 85 | 108 | 192 | 188 | 163 | 157 | 157 | 21 | 10 | 43 | 71 | 50 | 80 | 180 | 158 | 184 | 379 | 49 | 375 | |
Swell 3 Height (m) Direction Period (s) | SW 19 | SW 19 | SW 13 | SW 12 | SW 12 | SW 12 | SSW 20 | SSW 18 | S 9 | S 9 | SSW 13 | SW 21 | SW 21 | SW 21 | S 9 | S 8 | SW 19 | SSW 13 | SSW 13 | SSW 12 |
130 | 127 | 84 | 38 | 38 | 37 | 127 | 110 | 26 | 25 | 34 | 160 | 160 | 212 | 24 | 12 | 299 | 137 | 95 | 57 | |
Wind waves Height (m) Direction Period (s) | — | — | — | — | — | — | — | — | — | — | — | — | WNW 5 | — | — | W 5 | — | — | — | — |
— | — | — | — | — | — | — | — | — | — | — | — | 9 | — | — | 14 | — | — | — | — | |
Nearest Offshore or Glassy | ||||||||||||||||||||
Distance (km) | 27 | 5 | 125 | 5 | 5 | 5 | 27 | 0 | 27 | 27 | 15 | 26 | 26 | 9 | 26 | 27 | 17 | 26 | 26 | 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.










