
Surf Forecasts:
Black Rocks surf forecast from 11 Jul 2026:
- Best quality surf: Wednesday 15 Jul, 11PM (local time) - 10ft (3.0m), 14s period, SW swell with glassy winds.
- Most powerful swell: Wednesday 15 Jul, 8PM (local time) - 10ft (3.0m), 14s period, SW swell with 3,761 kJ wave energy.
- Next surfable swell (1★+): Tuesday 14 Jul, 5AM (local time) - 2.5ft (0.7m), 11s period with WSW swell.
Best Forecast Surf Conditions for Black Rocks this week:
The surf forecast for Black Rocks over the next 16 days: The first swell (rated 1 star or higher) is forecast to arrive on Tuesday (Jul 14) at 5AM. The primary swell is predicted to be 0.7m and 11s period with a secondary swell of 0.6m and 9s. The wind is predicted to be cross-offshore as the swell arrives.
The most powerful waves expected at Black Rocks in the next 16 days are 3.0m 14s and forecast to arrive on Wednesday (Jul 15) at 8PM. Winds are predicted to be cross-onshore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 0.8m 4s period and expected on Thursday (Jul 16) at 11AM.
| Wave Type | Time (SAST) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | 5AM (Tue 14th Jul) | 2.5ft (0.7m) 11s |
| Best Surf | 11PM (Wed 15th Jul) | 10ft (3.0m) 14s |
| Most Powerful | 8PM (Wed 15th Jul) | 10ft (3.0m) 14s |
Table - best surf conditions forecast for Black Rocks over the next 16 days.
Alright, Rusty here. Let's talk about what's shaping up for Black Rocks.
Right now, it's a bit of a rough start. The wind is howling from the ESE at 25 mph, making a total mess of things with a choppy, cross-onshore wind. It's just not worth paddling out into. Through Sunday and Monday, things stay poor or very marginal with that persistent ESE wind and short, weak swell. There's a solid 7ft swell on Sunday morning, but with a period of only 7 seconds and plenty of wind, it won't be any good. We've got a few quiet days until around the middle of the week where things start to look interesting.
The first real promise comes on Wednesday morning, July 15th. We've got a clean 5ft SW groundswell rolling in with a solid 11-second period and light SSW winds that are cross-offshore. The combined swell energy is a moderate 744, and it's looking like very good surf conditions. This is a good window for advanced surfers on the reef.
The real standout, though, is going to be later in that week. Keep an eye on Thursday afternoon, July 16th. The forecast shows a strong 8ft SW groundswell with a 13-second period, combined with a clean WNW cross-offshore breeze. The wave energy is pumping at 1915, and it's described as excellent for experienced surfers. That's a solid pick for anyone who knows the reef. The water temp is about 60°F, which is pretty normal for this time of year, so a good 4/3 will do you.
Now, a bit of a weather warning: Friday, July 17th, is a write-off. The wind kicks back up to a near-gale from the ESE at 34 mph, blowing out the 10ft swell completely. It might be more of a kite-surfing day than a paddle day. Then Saturday the 18th is messy with an onshore ESE wind, but the swell stays solid.
Longer range, the second week is a mixed bag but has one epic setup waiting. The forecast for Sunday, July 26th afternoon looks absolutely glassy. We're talking a big 10ft SSW groundswell with a very long 15-second period and zero wind. The combined wave energy is a massive 4601, and it's rated excellent for experienced surfers. It's a long way out, so take it as a very promising tease, but if it holds, it'll be a day for the books. The morning of the 26th is also good with an 12ft swell and light winds, but it's cross-on. Before that, Wednesday July 22nd afternoon and Thursday July 23rd also look clean with moderate SW swells, so there are plenty of options to aim for in that second week.
On the whole, the Black Rocks forecast has some proper clean windows, but you need to pick your days. Thursday the 16th and that Sunday the 26th are your standouts.
Rusty.
Short Range ForecastMostly dry. Very mild (max 17°C on Sat afternoon, min 13°C on Sat morning). Winds decreasing (strong winds from the ESE on Sat afternoon, calm by Mon night). | Days 4-6 Weather SummaryLight rain (total 2mm), mostly falling on Wed morning. Very mild (max 16°C on Tue afternoon, min 12°C on Thu night). Winds increasing (calm on Wed night, strong winds from the SE by Thu night). | ||||||||||||||||||||
Saturday 11 | Sunday 12 | Monday 13 | Tuesday 14 | Wednesday 15 | Thursday 16 | Friday 17 | |||||||||||||||
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 12 | SSW 12 | SSW 11 | SE 7 | SSW 11 | S 10 | S 10 | S 9 | SSE 9 | SSE 9 | S 9 | SW 18 | SW 11 | SW 15 | SW 14 | SW 14 | SW 13 | SW 12 | SSW 13 | SSW 13 | SSW 14 |
Wave Graph | |||||||||||||||||||||
986 | 725 | 522 | 493 | 256 | 386 | 219 | 171 | 62 | 61 | 40 | 78 | 496 | 3357 | 3487 | 2191 | 1915 | 2310 | 2721 | 2631 | 2313 | |
Wind (km/h) | |||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | cross-on | cross-on | on | on | cross-on | on | on | cross-on | cross | cross-off | cross-off | cross-off | cross-off | cross-on | off | cross-off | cross-off | cross | cross-on | cross-on | on |
High Tide | 12:49PM1.24m | 1:04AM1.42m | 1:48PM1.35m | 2:02AM1.49m | 2:40PM1.47m | 2:55AM1.55m | 3:28PM1.56m | 3:43AM1.57m | 4:13PM1.61m | 4:28AM1.54m | 4:56PM1.62m | 5:11AM1.48m | 5:38PM1.59m | ||||||||
Low Tide | 6:51PM0.37m | 7:35AM0.17m | 7:54PM0.26m | 8:28AM0.09m | 8:48PM0.17m | 9:15AM0.02m | 9:38PM0.10m | 9:59AM-0.00m | 10:25PM0.08m | 10:41AM0.01m | 11:11PM0.10m | 11:21AM0.07m | 11:55PM0.16m | ||||||||
7:50 | — | — | 7:50 | — | — | 7:50 | — | — | 7:50 | — | — | 7:50 | — | — | 7:48 | — | — | 7:48 | — | — | |
— | 5:51 | — | — | 5:52 | — | — | 5:52 | — | — | 5:52 | — | — | 5:53 | — | — | 5:53 | — | — | 5:54 | — | |
mm | — | — | — | — | — | — | — | — | — | — | — | — | 1 | — | — | — | — | 1 | — | — | — |
Temp °C | 14 | 17 | 15 | 13 | 17 | 16 | 14 | 16 | 16 | 15 | 16 | 15 | 15 | 14 | 13 | 14 | 15 | 15 | 12 | 12 | 11 |
Feels °C | 7 | 9 | 7 | 8 | 12 | 11 | 12 | 14 | 14 | 12 | 12 | 12 | 13 | 12 | 12 | 11 | 10 | 8 | 1 | 1 | 0 |
Swell 1 Height (m) Direction Period (s) | SSW 12 | SSW 12 | SSW 11 | SSE 8 | SSW 11 | S 10 | S 10 | S 9 | SSE 9 | W 10 | W 10 | W 9 | SW 11 | SW 15 | SW 14 | SW 14 | SW 13 | SW 12 | SSW 13 | SSW 13 | SSW 14 |
986 | 725 | 522 | 264 | 256 | 386 | 219 | 171 | 62 | 98 | 94 | 60 | 496 | 3357 | 3487 | 2191 | 1915 | 2310 | 2721 | 2631 | 2313 | |
Swell 2 Height (m) Direction Period (s) | W 11 | W 11 | W 12 | SSW 11 | W 11 | WSW 10 | W 10 | W 9 | W 12 | SSE 9 | S 9 | SSE 8 | SW 16 | ESE 9 | — | — | — | — | WSW 11 | — | S 13 |
62 | 93 | 69 | 291 | 58 | 33 | 30 | 25 | 98 | 61 | 40 | 27 | 248 | 16 | — | — | — | — | 123 | — | 32 | |
Swell 3 Height (m) Direction Period (s) | S 20 | SW 18 | SW 18 | W 11 | SW 15 | SSW 15 | SW 14 | WSW 13 | SSW 10 | SW 13 | SE 7 | SW 18 | W 9 | — | — | — | — | — | SW 21 | — | W 10 |
7 | 13 | 12 | 61 | 36 | 21 | 31 | 31 | 55 | 42 | 14 | 78 | 15 | — | — | — | — | — | 17 | — | 17 | |
Wind waves Height (m) Direction Period (s) | SE 6 | SSE 6 | SSE 7 | SE 7 | SSE 7 | SE 7 | SE 7 | — | — | NW 2 | WNW 3 | NNW 3 | — | — | — | WNW 4 | — | — | SE 5 | SE 6 | SE 7 |
143 | 164 | 289 | 493 | 183 | 179 | 91 | — | — | 1 | 4 | 2 | — | — | — | 16 | — | — | 152 | 150 | 287 | |
Nearest Offshore or Glassy | |||||||||||||||||||||
Distance (km) | 22 | 22 | 22 | 14 | 9 | 5 | 5 | 5 | 4 | 4 | 4 | 4 | 0 | 5 | 0 | 4 | 0 | 885 | 55 | 33 | 33 |
Best forecast wave conditions in Cape Town | |||||||||||||||||||||
Best forecast wave conditions in South Africa | |||||||||||||||||||||
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Information about the Black Rocks Surf forecast
The above surf forecast table for Black Rocks provides essential information for determining whether the surfing conditions will be good over the next 16 days. A general guide to surfing at Black Rocks can be found by selecting the local surf guide option on the grey menu. Our Black Rocks 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 (Black Rocks) 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 Black Rocks 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.
Are you planning a holiday in Cape Town? If you are looking for accommodation near Black Rocks, camping, hotels and holiday cottages in Cape Town, consider staying in Cape Town which is 40 km (25 miles) away. Other places in and around Cape Town where you can find information about places to rent, and car hire include Bellville which is 46 km (29 miles) away, Stellenbosch, Grabouw and Kayamnandi.










