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Black Rocks Surf Forecast
/ Cape Town (70 surf breaks) /
Surf Forecasts:
Black Rocks surfForecast / Cape Town / South Africa
16 Day Weather and Surf, issued 7 am Monday 18 May 2026 SASTForecast update in hr min s Forecast update imminent
Black Rocks surf forecast is for near shore open water. Breaking waves will often be smaller at less exposed spots.
Today's Black Rocks sea temperature is
16.6° C
(Which is slightly cooler than normal)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 Thursday (May 21) at 5AM. The primary swell is predicted to be 1.0m and 8s period with a secondary swell of 0.5m and 11s. 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 2.3m 14s and forecast to arrive on Monday (May 25) 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 0.4m 3s period and expected on Thursday (May 21) at 2PM.
| Wave Type | Time (SAST) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | 5AM (Thu 21st May) | 3.5ft (1.0m) 8s |
| Best Surf | 2PM (Sun 24th May) | 4.5ft (1.3m) 16s |
| Most Powerful | 2PM (Mon 25th May) | 7.5ft (2.3m) 14s |
Table - best surf conditions forecast for Black Rocks over the next 16 days.
Updates in hr min s Forecast update imminent
Short Range ForecastMostly dry. Warm (max 20°C on Wed afternoon, min 16°C on Mon morning). Winds decreasing (near gales from the ESE on Mon night, light winds from the NNW by Wed night). | Days 4-6 Weather SummaryMostly dry. Very mild (max 19°C on Thu afternoon, min 16°C on Thu night). Wind will be generally light. | ||||||||||||||||||||
Monday 18 | Tuesday 19 | Wednesday 20 | Thursday 21 | Friday 22 | Saturday 23 | Sunday 24 | |||||||||||||||
AM | PM | Night | AM | PM | Night | AM | PM | Night | AM | PM | Night | AM | PM | Night | AM | PM | Night | AM | PM | Night | |
Swell Height Map |  |  |  |  |  |  |  | ||||||||||||||
SW 14 | SW 14 | SSE 8 | SSE 8 | SSE 8 | SSE 9 | SE 8 | SSE 8 | SSE 8 | SW 13 | SW 20 | SW 18 | SW 16 | SW 16 | SW 14 | SW 13 | SW 14 | SW 14 | SW 16 | SW 16 | SW 14 | |
752 | 647 | 1122 | 1003 | 488 | 1012 | 449 | 300 | 179 | 106 | 98 | 258 | 318 | 492 | 528 | 537 | 641 | 696 | 504 | 1068 | 1688 | |
Wind (km/h) | |||||||||||||||||||||
cross-on | cross-on | cross-on | cross-on | cross-on | on | cross-on | cross-on | cross-on | cross-off | cross-off | cross-off | cross-off | off | cross-off | cross | cross | cross | cross-on | cross | cross-on | |
High Tide | 4:28PM1.51m | 4:43AM1.54m | 5:17PM1.46m | 5:34AM1.43m | 6:11PM1.39m | 6:31AM1.30m | 7:12PM1.32m | 7:37AM1.17m | 8:23PM1.26m | 8:56AM1.09m | 9:38PM1.25m | 10:19AM1.07m | 10:47PM1.26m | ||||||||
Low Tide | 10:16AM-0.00m | 10:34PM0.14m | 11:03AM0.08m | 11:26PM0.22m | 11:53AM0.18m | 00:24AM0.31m | 12:48PM0.29m | 1:33AM0.40m | 1:52PM0.39m | 2:54AM0.46m | 3:06PM0.45m | 4:17AM0.45m | 4:22PM0.48m | ||||||||
 |  |  | | | | | |  |  | | | | | | | | | | | | |
 | 7:33 | — | — | 7:33 | — | — | 7:35 | — | — | 7:35 | — | — | 7:35 | — | — | 7:37 | — | — | 7:37 | — | — |
 | — | 5:50 | — | — | 5:50 | — | — | 5:49 | — | — | 5:49 | — | — | 5:47 | — | — | 5:47 | — | — | 5:46 | — |
— | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | |
Temp °C | 17 | 18 | 17 | 17 | 19 | 17 | 17 | 20 | 20 | 18 | 19 | 17 | 17 | 18 | 18 | 17 | 17 | 17 | 16 | 16 | 17 |
10 | 10 | 7 | 8 | 15 | 9 | 13 | 17 | 19 | 17 | 16 | 15 | 14 | 18 | 17 | 16 | 16 | 15 | 16 | 15 | 15 | |
Swell 1 Height (m) Direction Period (s) | SW 14 | SW 14 | SW 13 | SW 13 | SW 13 | SW 12 | S 11 | S 11 | SSE 8 | SSE 8 | SSE 8 | SW 18 | SW 16 | SW 16 | SW 14 | SW 13 | SW 14 | SW 14 | SW 13 | SW 16 | SW 14 |
 kJ | 752 | 647 | 431 | 336 | 331 | 154 | 116 | 88 | 179 | 98 | 67 | 258 | 318 | 492 | 528 | 537 | 641 | 696 | 380 | 1068 | 1688 |
Swell 2 Height (m) Direction Period (s) | S 10 | S 8 | S 12 | S 15 | SSE 14 | S 19 | SW 12 | SW 12 | S 11 | SW 13 | SW 12 | SW 11 | WSW 10 | S 6 | S 5 | S 9 | SW 19 | SW 18 | SW 16 | SSE 11 | SSE 11 |
| kJ | 33 | 93 | 11 | 18 | 38 | 7 | 114 | 67 | 61 | 106 | 90 | 77 | 73 | 15 | 11 | 6 | 57 | 194 | 504 | 25 | 23 |
Swell 3 Height (m) Direction Period (s) | S 13 | SSE 13 | S 17 | — | SSE 14 | — | SSW 16 | SSW 15 | SW 14 | SSE 11 | SW 20 | S 6 | SSE 6 | S 10 | S 9 | S 13 | S 9 | SSE 13 | SSE 12 | E 11 | — |
| kJ | 55 | 31 | 6 | — | 19 | — | 25 | 22 | 68 | 22 | 98 | 31 | 21 | 17 | 16 | 3 | 2 | 16 | 27 | 2 | — |
Wind waves Height (m) Direction Period (s) | SE 6 | SSE 7 | SSE 8 | SSE 8 | SSE 8 | SSE 9 | SE 8 | SSE 8 | — | — | NW 3 | — | — | — | — | SSE 5 | SSE 3 | SSE 4 | — | — | — |
| kJ | 160 | 480 | 1122 | 1003 | 488 | 1012 | 449 | 300 | — | — | 2 | — | — | — | — | 9 | 6 | 5 | — | — | — |
Nearest Offshore or Glassy | |||||||||||||||||||||
Distance (km) | 43 | 43 | 43 | 33 | 25 | 22 | 22 | 9 | 5 | 0 | 4 | 4 | 20 | 0 | 0 | 9 | 5 | 5 | 3 | 5 | 9 |
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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