
Surf Forecasts:
Black Rocks surf forecast from 1 Aug 2026:
- Best quality surf: Saturday 8 Aug, 5AM (local time) - 11ft (3.5m), 14s period, SW swell with cross-offshore winds.
- Most powerful swell: Saturday 8 Aug, 2PM (local time) - 15ft (4.5m), 15s period, SW swell with 7,765 kJ wave energy.
- Next surfable swell (1★+): Saturday 1 Aug, 2PM (local time) - 3.5ft (1.1m), 14s period with SW 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 Saturday (Aug 01) at 2PM. The primary swell is predicted to be 1.1m and 14s period with a secondary swell of 0.4m 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 4.5m 15s and forecast to arrive on Saturday (Aug 08) at 2PM. Winds are predicted to be cross-offshore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 1.3m 5s period and expected on Wednesday (Aug 05) at 5PM.
| Wave Type | Time (SAST) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | 2PM (Sat 1st Aug) | 3.5ft (1.1m) 14s |
| Best Surf | 5AM (Sat 8th Aug) | 11ft (3.5m) 14s |
| Most Powerful | 2PM (Sat 8th Aug) | 15ft (4.5m) 15s |
Table - best surf conditions forecast for Black Rocks over the next 16 days.
The Lowdown
Alright, let’s get into it. The only game in town for the next 16 days is Black Rocks, a reef setup that’s advanced and inconsistent, but when it’s on, it’s worth the paddle. Water temp is sitting at about 59°F, which is average for this time of year, so nothing wild there.
We kick off Saturday the 1st with a small 4ft SW swell, but the wind is cross and conditions are only marginal—nothing to get excited about. Sunday the 2nd shows some improvement with clean surf in the morning as winds go cross-off, and by afternoon we’ve got offshore winds and the same 3-4ft SW swell. Still small, but rideable.
Monday the 3rd morning is the real standout early on: glassy conditions, 4ft SW swell, and the combined energy is moderate at 636. That’s clean, that’s smooth, that’s the kind of dawn session you dream about. Afternoon goes cross-on, so get it while it’s good.
Tuesday the 4th is a mixed bag – morning cross-shore with a 4ft SW swell, but the afternoon cleans up with cross-off winds and a light breeze. Not huge, but for an inconsistent spot, you take what you can.
Then Wednesday the 5th brings a jump: 7ft in the morning, 8ft in the afternoon, both from the SW with a period of 14 seconds – that’s proper groundswell. Winds are cross-off and fresh, so it’s clean but getting big. The combined energy hits 1657 in the morning and 2650 in the afternoon, so there’s a lot of power. This is experienced territory only, especially with the reef.
Thursday the 6th sees 10ft SW swell, but the wind goes cross and then cross-on in the afternoon with chop. Friday the 7th is a redemption: 8ft in the morning with clean cross-off winds, 8ft in the afternoon with offshore winds. That’s excellent for experienced surfers – the swell’s got legs, the wind’s on your side, and the reef will shape it up nicely.
Saturday the 8th gets huge: 13ft to 15ft SW swell, combined energy over 7000. That’s a serious swell with a 15-second period in the morning. Wind is cross-off but strong – this is expert-only, and even then, it’s going to be a beast. Sunday the 9th is similar with 12ft, but the wind is strong and messy by afternoon, so it’s not a goer.
After that, the surf drops off and the wind gets nasty. Monday the 10th through Wednesday the 12th sees some poor conditions, but there’s a hidden gem: Tuesday the 11th afternoon – 6ft SW swell with a 19-second period, clean and cross-off. That’s rare, that’s beautiful, and the combined energy is 3176. Wednesday the 12th is also clean with 7-8ft SW swell and 15-16 second periods. Both these days are excellent for experienced surfers.
The rest of the run is smaller and wind-affected, with Thursday the 13th getting blown out and Friday the 14th through Sunday the 16th offering only small clean spells but nothing to get the heart racing. The 16th is a no-go with near gale offshore winds that’ll make paddling a nightmare.
Best bet? Monday the 3rd morning for the glassy session, and Friday the 7th for the clean, powerful groundswell. If you’re after the long-period magic, Tuesday the 11th afternoon and Wednesday the 12th are your days.
Rusty.
Short Range ForecastMostly dry. Warm (max 22°C on Sat morning, min 15°C on Mon morning). Wind will be generally light. | Days 4-6 Weather SummaryLight rain (total 8mm), mostly falling on Wed night. Very mild (max 15°C on Tue morning, min 12°C on Wed night). Winds increasing (calm on Tue night, strong winds from the NW by Wed afternoon). | ||||||||||||||||||||
Saturday 1 | Sunday 2 | Monday 3 | Tuesday 4 | Wednesday 5 | Thursday 6 | Friday 7 | |||||||||||||||
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) | SW 14 | SW 13 | SW 13 | SW 13 | SW 12 | SW 13 | SW 13 | SW 13 | SW 12 | SW 11 | SW 11 | SW 15 | SW 14 | SW 14 | SW 13 | SW 13 | SW 12 | SW 14 | SW 14 | SW 14 | SW 14 |
Wave Graph | |||||||||||||||||||||
447 | 369 | 325 | 369 | 282 | 495 | 529 | 400 | 486 | 338 | 254 | 217 | 1624 | 2630 | 3933 | 3116 | 2536 | 2952 | 2484 | 2127 | 3781 | |
Wind (km/h) | |||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | cross | cross | cross-on | cross-off | off | glassy | glassy | cross-on | cross | cross | cross-off | cross-off | cross-off | cross-off | cross-off | cross | cross-on | on | cross-off | off | cross-off |
High Tide | 5:03PM1.53m | 5:13AM1.40m | 5:34PM1.52m | 5:47AM1.35m | 6:08PM1.48m | 6:26AM1.28m | 6:48PM1.41m | 7:14AM1.19m | 7:38PM1.32m | 8:17AM1.10m | 8:47PM1.24m | 9:49AM1.05m | 10:22PM1.20m | ||||||||
Low Tide | 10:47AM0.12m | 11:13PM0.20m | 11:16AM0.15m | 11:47PM0.21m | 11:48AM0.21m | 00:24AM0.25m | 12:25PM0.28m | 1:09AM0.32m | 1:10PM0.38m | 2:06AM0.39m | 2:12PM0.48m | 3:28AM0.45m | 3:46PM0.54m | ||||||||
7:39 | — | — | 7:39 | — | — | 7:37 | — | — | 7:37 | — | — | 7:35 | — | — | 7:35 | — | — | 7:33 | — | — | |
— | 6:05 | — | — | 6:06 | — | — | 6:06 | — | — | 6:07 | — | — | 6:07 | — | — | 6:08 | — | — | 6:08 | — | |
mm | — | — | — | — | — | — | — | — | — | — | — | — | — | — | 8 | — | — | — | — | — | — |
Temp °C | 22 | 22 | 21 | 19 | 20 | 19 | 16 | 16 | 16 | 15 | 15 | 14 | 14 | 15 | 14 | 14 | 14 | 13 | 13 | 14 | 13 |
Feels °C | 18 | 19 | 17 | 15 | 16 | 16 | 15 | 14 | 13 | 13 | 13 | 14 | 8 | 8 | 9 | 12 | 10 | 7 | 12 | 10 | 10 |
Swell 1 Height (m) Direction Period (s) | SW 14 | SW 13 | SW 13 | SW 13 | SW 12 | SW 13 | SW 13 | SW 13 | SW 12 | SW 11 | SW 11 | SW 10 | SW 14 | SW 14 | SW 13 | SW 13 | SW 12 | SW 14 | SW 14 | SW 14 | SW 14 |
447 | 369 | 325 | 369 | 282 | 495 | 529 | 400 | 486 | 338 | 254 | 163 | 1624 | 2630 | 3933 | 3116 | 2536 | 2952 | 2484 | 2127 | 3781 | |
Swell 2 Height (m) Direction Period (s) | SE 10 | SE 10 | SE 10 | SE 9 | SSW 15 | SE 14 | WSW 15 | SW 12 | SE 11 | ESE 11 | SSW 16 | SW 15 | W 9 | ESE 10 | ESE 10 | SSW 18 | SSW 16 | ESE 10 | — | — | — |
47 | 33 | 35 | 14 | 158 | 33 | 84 | 212 | 19 | 11 | 25 | 217 | 14 | 20 | 10 | 31 | 175 | 9 | — | — | — | |
Swell 3 Height (m) Direction Period (s) | — | — | S 9 | S 9 | SE 10 | S 8 | SE 12 | SE 12 | ESE 11 | SW 18 | ESE 11 | W 10 | ESE 10 | — | — | ESE 10 | ESE 10 | — | — | — | — |
— | — | 6 | 6 | 17 | 1 | 23 | 21 | 105 | 12 | 11 | 18 | 33 | — | — | 10 | 9 | — | — | — | — | |
Wind waves Height (m) Direction Period (s) | — | — | — | — | NW 3 | — | — | — | — | — | — | NW 2 | NW 5 | NW 5 | — | — | — | E 4 | WNW 3 | — | — |
— | — | — | — | 2 | — | — | — | — | — | — | 2 | 60 | 83 | — | — | — | 10 | 10 | — | — | |
Nearest Offshore or Glassy | |||||||||||||||||||||
Distance (km) | 4 | 9 | 5 | 0 | 0 | 0 | 0 | 5 | 5 | 9 | 0 | 4 | 49 | 336 | 15 | 9 | 9 | 5 | 0 | 0 | 0 |
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.











