Surf Forecasts:
Black Rocks surf forecast from 28 Aug 2026:
- Best quality surf: Tuesday 1 Sep, 8AM (local time) - 7ft (2.1m), 13s period, SW swell with cross-offshore winds.
- Most powerful swell: Wednesday 2 Sep, 5AM (local time) - 13ft (4.0m), 16s period, SSW swell with 7,680 kJ wave energy.
- Next surfable swell (1★+): Friday 28 Aug, 8PM (local time) - 3ft (0.9m), 14s 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 Friday (Aug 28) at 8PM. The primary swell is predicted to be 0.9m and 14s period with a secondary swell of 0.9m and 10s. The wind is predicted to be glassy as the swell arrives.
The most powerful waves expected at Black Rocks in the next 16 days are 4.0m 16s and forecast to arrive on Wednesday (Sep 02) at 5AM. Winds are predicted to be cross-onshore at the time the swell arrives.
| Wave Type | Time (SAST) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | 8PM (Fri 28th Aug) | 3ft (0.9m) 14s |
| Best Surf | 8AM (Tue 1st Sep) | 7ft (2.1m) 13s |
| Most Powerful | 5AM (Wed 2nd Sep) | 13ft (4.0m) 16s |
Table - best surf conditions forecast for Black Rocks over the next 16 days.
Short Range ForecastLight rain (total 3mm), mostly falling on Sat morning. Very mild (max 16°C on Fri night, min 12°C on Sun night). Winds increasing (calm on Fri night, fresh winds from the SSE by Sun night). | Days 5-7 Weather SummaryMostly dry. Very mild (max 15°C on Tue night, min 13°C on Mon afternoon). Winds increasing (light winds from the SSE on Mon afternoon, strong winds from the SSE by Wed night). | |||||||||||||||||||
Fri 28 | Saturday 29 | Sunday 30 | Monday 31 | Tuesday 1 | Wednesday 2 | Thursday 3 | ||||||||||||||
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) | WSW 14 | WSW 13 | SW 15 | SW 10 | SW 13 | SW 12 | SW 12 | WSW 12 | SW 12 | SW 11 | SW 11 | SW 13 | SW 13 | SW 14 | SW 15 | SW 14 | SW 13 | SW 12 | SE 7 | SE 8 |
Wave Graph  | ||||||||||||||||||||
 kJ | 342 | 295 | 623 | 499 | 757 | 1544 | 1276 | 769 | 752 | 574 | 807 | 1750 | 1972 | 3508 | 4982 | 3163 | 1594 | 970 | 764 | 1532 |
Wind (km/h) | ||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | cross | cross-on | cross-on | cross-off | cross | cross-on | cross-on | cross-on | cross-on | cross | cross-on | cross-off | cross-off | cross-on | cross-on | cross-on | cross | cross-on | cross-on | cross-on |
High Tide | 3:33PM1.59m | 3:44AM1.50m | 4:01PM1.63m | 4:15AM1.50m | 4:31PM1.63m | 4:48AM1.47m | 5:03PM1.60m | 5:22AM1.41m | 5:38PM1.52m | 6:00AM1.32m | 6:18PM1.41m | 6:47AM1.20m | 7:10PM1.28m | |||||||
Low Tide | 9:44PM0.10m | 9:49AM0.06m | 10:14PM0.07m | 10:18AM0.07m | 10:45PM0.07m | 10:48AM0.10m | 11:18PM0.11m | 11:22AM0.17m | 11:55PM0.19m | 11:59AM0.27m | 00:39AM0.30m | 12:45PM0.40m | 1:38AM0.42m | |||||||
 |  |  | |  | |  |  | | | | | | | |  | | | | | |
 | — | — | 7:09 | — | — | 7:07 | — | — | 7:05 | — | — | 7:05 | — | — | 7:03 | — | — | 7:01 | — | — |
 | 6:23 | — | — | 6:24 | — | — | 6:25 | — | — | 6:25 | — | — | 6:27 | — | — | 6:28 | — | — | 6:28 | — |
mm | — | — | 2 | 1 | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
Temp °C | 15 | 16 | 15 | 14 | 14 | 14 | 13 | 13 | 12 | 13 | 13 | 14 | 14 | 15 | 13 | 14 | 14 | 13 | 14 | 14 |
Feels °C | 13 | 16 | 13 | 9 | 8 | 7 | 6 | 5 | 8 | 11 | 10 | 13 | 12 | 14 | 6 | 7 | 6 | 4 | 3 | 1 |
Swell 1 Height (m) Direction Period (s) | S 10 | WSW 13 | SW 15 | SW 14 | SW 8 | SW 12 | SW 12 | WSW 12 | SW 12 | SW 11 | SW 11 | SW 13 | SW 13 | SW 14 | SW 15 | SW 14 | SW 13 | SW 12 | WSW 12 | SSW 10 |
| kJ | 175 | 295 | 623 | 463 | 423 | 1544 | 1276 | 769 | 752 | 574 | 807 | 1750 | 1972 | 3508 | 4982 | 3163 | 1594 | 970 | 496 | 383 |
Swell 2 Height (m) Direction Period (s) | WSW 14 | S 10 | S 11 | S 11 | SW 13 | SSE 10 | SSE 10 | S 10 | SSE 7 | S 10 | SSW 14 | — | — | SW 18 | — | — | — | S 11 | SSW 10 | SW 11 |
| kJ | 342 | 128 | 157 | 88 | 757 | 22 | 20 | 8 | 18 | 2 | 145 | — | — | 1307 | — | — | — | 146 | 112 | 250 |
Swell 3 Height (m) Direction Period (s) | SSE 14 | S 13 | SSE 14 | ESE 8 | SSE 11 | — | — | — | — | — | S 10 | — | — | — | — | — | — | — | SSW 15 | SSW 14 |
| kJ | 64 | 89 | 71 | 6 | 40 | — | — | — | — | — | 2 | — | — | — | — | — | — | — | 44 | 75 |
Wind waves Height (m) Direction Period (s) | — | — | — | SW 10 | — | — | — | SSE 7 | — | — | SE 3 | — | — | — | SE 6 | SSE 7 | SSE 8 | SE 7 | SE 7 | SE 8 |
| kJ | — | — | — | 499 | — | — | — | 114 | — | — | 3 | — | — | — | 149 | 537 | 998 | 559 | 764 | 1532 |
Nearest Offshore or Glassy | ||||||||||||||||||||
Distance (km) | 5 | 5 | 14 | 22 | 336 | 34 | 336 | 23 | 5 | 9 | 5 | 0 | 0 | 34 | 35 | 399 | 397 | 909 | 2789 | 245 |
Best forecast wave conditions in Cape Town | ||||||||||||||||||||
Best forecast wave conditions in South Africa | ||||||||||||||||||||
Header Global | ||||||||||||||||||||
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FREE! Surf-Forecast.com widget for your website
The surf report / weather widget below is available to embed on third party websites free of charge and provides a summary of our Black Rocks surf forecast. Simply grab the html code snippet that we provide and paste it into your own site. You can choose your preferred language and metric/imperial units for the surf forecast feed to suit users of your site. Click here to get the code.
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.
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