
Surf Forecasts:
Blacks Beach surf forecast from 17 Jul 2026:
- Best quality surf: Monday 20 Jul, 5AM (local time) - 5ft (1.6m), 12s period, SSW swell with glassy winds.
- Most powerful swell: Sunday 19 Jul, 8PM (local time) - 5ft (1.6m), 12s period, SSW swell with 820 kJ wave energy.
- Next surfable swell (1★+): Saturday 18 Jul, 8PM (local time) - 2ft (0.6m), 19s 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 Saturday (Jul 18) at 8PM. The primary swell is predicted to be 0.6m and 19s period. 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 1.6m 12s and forecast to arrive on Sunday (Jul 19) at 8PM. Winds are predicted to be 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 Thursday (Jul 23) at 5AM.
| Wave Type | Time (PDT) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | 8PM (Sat 18th Jul) | 2ft (0.6m) 19s |
| Best Surf | 5AM (Mon 20th Jul) | 5ft (1.6m) 12s |
| Most Powerful | 8PM (Sun 19th Jul) | 5ft (1.6m) 12s |
Table - best surf conditions forecast for Blacks Beach over the next 16 days.
The Lowdown
Alright, this is Rusty, checking in on the local lineup for the next couple of weeks. Let's get straight into it.
We’re looking at a pretty drawn-out stretch of small, generally poor conditions at Blacks Beach for the first week or so, but there's a glimmer of hope towards the end. The water is sitting at a very unusual 73°F right now, that's 6°F warmer than average for this time of year – feels more like a late summer bath than a July swim.
For the rest of this week and into next, it's a grind. Thursday the 16th through to most of next week shows tiny swell, mostly 2ft to 4ft from the SW, but the wind is all wrong. It's cross or cross-onshore, creating a messy surface. The first real chance of anything decent comes on Monday the 20th afternoon, when a 4ft SW groundswell with a good 16-second period lines up with some light offshore WNW wind. The combined energy hits 606 (moderate), and it looks like the only window with offshore breeze in days. It’s still a marginal call, but that’s the pick of a very thin bunch early on.
Tuesday the 21st morning has a similar setup – light offshore wind and a 3ft SSW swell at 16 seconds – but the energy is only rated as marginal. The winds look cleaner those two mornings, so if you're desperate for a slide, that's your only real play.
The biggest swell we see shows up on Saturday the 25th. Swell jumps up to 6ft from the SSW, combined energy is a hefty 1781 (strong), and it's clean with light WSW offshore wind. But be warned – at 6ft, this is getting into expert territory at Blacks, especially with that 13-second period. The surf quality is still noted as marginal, but with that much energy and clean wind, it's the standout of the whole outlook. The size and power will be real, and Blacks on a SSW is a serious wave. Expect a crowd.
Sunday the 26th through to Wednesday the 30th hangs in there with solid 3ft to 5ft SSW groundswell and mostly light offshore morning winds. The combined swell energy stays in the strong range (over 1000), but the forecast quality remains marginal. Still, if you can pick your morning window, there will be waves with shape. After that, Thursday the 30th afternoon and Friday the 31st drop right off into flatness.
Truth is, for this stretch, the standout session is the morning and afternoon of Saturday the 25th – that's the one to circle on the calendar if you've got the experience and the fortitude for a crowd at Blacks.
- Rusty
Short Range ForecastMostly dry. Warm (max 23°C on Thu afternoon, min 20°C on Fri night). Wind will be generally light. | Days 5-7 Weather SummaryMostly dry. Warm (max 25°C on Tue morning, min 20°C on Sun night). Wind will be generally light. | |||||||||||||||||||
Thu 16 | Friday 17 | Saturday 18 | Sunday 19 | Monday 20 | Tuesday 21 | Wednesday 22 | ||||||||||||||
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 19 | SW 19 | SW 18 | SW 15 | SW 18 | SW 18 | SW 16 | SW 17 | SW 17 | SSW 12 | SSW 15 | SW 16 | SSW 16 | SSW 16 | SSW 15 | SSW 15 | SSW 15 | SSW 14 | SSW 14 |
Wave Graph | ||||||||||||||||||||
121 | 175 | 181 | 103 | 137 | 366 | 379 | 127 | 410 | 470 | 692 | 468 | 558 | 412 | 506 | 474 | 468 | 443 | 325 | 316 | |
Wind (km/h) | ||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | cross | cross | cross | cross-on | cross | cross-on | cross-on | cross-on | cross-on | on | cross-on | on | on | glassy | on | on | cross-on | cross-on | cross-on | cross-on |
High Tide | 11:13PM1.89m | 12:46PM1.38m | 00:02AM1.65m | 1:30PM1.42m | 00:55AM1.38m | 2:16PM1.45m | 2:00AM1.12m | 3:05PM1.48m | 3:37AM0.92m | 3:58PM1.50m | 5:57AM0.86m | 4:54PM1.53m | ||||||||
Low Tide | 5:06PM0.56m | 6:14AM-0.21m | 6:05PM0.57m | 6:52AM-0.02m | 7:12PM0.59m | 7:29AM0.19m | 8:31PM0.58m | 8:06AM0.41m | 10:06PM0.52m | 8:46AM0.60m | 11:41PM0.40m | 9:39AM0.76m | 00:51AM0.25m | |||||||
— | — | 5:52 | — | — | 5:52 | — | — | 5:52 | — | — | 5:54 | — | — | 5:54 | — | — | 5:54 | — | — | |
7:58 | — | — | 7:57 | — | — | 7:57 | — | — | 7:55 | — | — | 7:55 | — | — | 7:54 | — | — | 7:53 | — | |
mm | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
Temp °C | 23 | 21 | 22 | 22 | 21 | 22 | 22 | 21 | 23 | 23 | 20 | 23 | 24 | 23 | 25 | 25 | 23 | 23 | 23 | 22 |
Feels °C | 23 | 21 | 21 | 21 | 21 | 22 | 22 | 23 | 23 | 23 | 21 | 23 | 23 | 24 | 23 | 23 | 23 | 23 | 23 | 23 |
Swell 1 Height (m) Direction Period (s) | W 8 | W 8 | W 8 | W 8 | W 7 | SW 18 | SW 18 | S 11 | SW 17 | S 12 | SSW 12 | S 11 | S 11 | SSW 10 | SSW 10 | SSW 15 | SSW 15 | SSW 15 | S 15 | S 15 |
84 | 66 | 76 | 58 | 36 | 366 | 379 | 112 | 410 | 594 | 692 | 313 | 307 | 236 | 190 | 474 | 468 | 443 | 743 | 1428 | |
Swell 2 Height (m) Direction Period (s) | SW 16 | SW 15 | SW 19 | SW 14 | SW 15 | S 12 | S 12 | SW 16 | S 13 | SW 17 | W 5 | SSW 15 | SW 16 | SSW 16 | SSW 16 | SSW 9 | S 14 | S 16 | SSW 14 | W 6 |
121 | 106 | 181 | 103 | 137 | 68 | 96 | 127 | 212 | 470 | 9 | 468 | 558 | 412 | 506 | 103 | 150 | 264 | 325 | 57 | |
Swell 3 Height (m) Direction Period (s) | SSW 12 | SW 19 | SW 14 | SW 18 | S 11 | W 7 | W 7 | S 14 | S 11 | WNW 6 | WNW 15 | WNW 5 | WNW 14 | SW 13 | SSE 14 | SSE 15 | SSW 8 | SSE 14 | SW 7 | SSW 14 |
46 | 175 | 74 | 83 | 39 | 23 | 21 | 60 | 143 | 13 | 43 | 10 | 40 | 140 | 40 | 74 | 46 | 195 | 23 | 316 | |
Wind waves Height (m) Direction Period (s) | — | S 3 | — | S 3 | — | — | — | — | — | — | — | — | W 5 | W 4 | — | WNW 4 | WNW 4 | WNW 4 | WNW 4 | — |
— | 1 | — | 1 | — | — | — | — | — | — | — | — | 8 | 4 | — | 3 | 5 | 9 | 25 | — | |
Nearest Offshore or Glassy | ||||||||||||||||||||
Distance (km) | 125 | 33 | 74 | 145 | 5 | 5 | 206 | 33 | 125 | 27 | 27 | 27 | 26 | 0 | 26 | 27 | 11 | 27 | 27 | 18 |
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.










