
Surf Forecasts:
Black Rocks surf forecast from 14 Jul 2026:
- Best quality surf: Wednesday 15 Jul, 2PM (local time) - 5ft (1.6m), 16s period, SW swell with offshore winds.
- Most powerful swell: Wednesday 15 Jul, 8PM (local time) - 8ft (2.5m), 14s period, SW swell with 2,936 kJ wave energy.
- Next surfable swell (1★+): Wednesday 15 Jul, 5AM (local time) - 2ft (0.6m), 17s 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 Wednesday (Jul 15) at 5AM. The primary swell is predicted to be 0.6m and 17s period. 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 2.5m 14s and forecast to arrive on Wednesday (Jul 15) at 8PM. Winds are predicted to be glassy at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 0.7m 10s period and expected on Tuesday (Jul 14) at 11AM.
| Wave Type | Time (SAST) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | 5AM (Wed 15th Jul) | 2ft (0.6m) 17s |
| Best Surf | 2PM (Wed 15th Jul) | 5ft (1.6m) 16s |
| Most Powerful | 8PM (Wed 15th Jul) | 8ft (2.5m) 14s |
Table - best surf conditions forecast for Black Rocks over the next 16 days.
The Lowdown
Rusty here. Right now, things are dead quiet at Black Rocks. The next couple of days are a write-off—Tuesday’s got a tiny 2ft S swell with a cross-off wind, but it’s poor surf, score zero. You’d be better off doing something else. The first real chance comes Wednesday morning, the 15th. A 3.6ft SW groundswell rolls in with a 17-second period—that’s serious energy (921 combined) and the wind is light cross-off, so it’ll be clean. This is a reef break, so that long period will focus nicely. It’s only for advanced surfers, and it’s inconsistent, so don’t expect it to pump all day. Still, Wednesday afternoon gets even better: 8ft SW at 16 seconds, light cross-off, excellent for experienced surfers—that’s a strong 2758 combined energy. Black Rocks is a reef, so that long-period groundswell will be bowling. But it’s often crowded, so get in early.
The standout in the near term is Thursday, the 16th. Morning brings 7.2ft SW at 13 seconds with glassy conditions—zero wind, dead calm. That’s an excellent session for the crew who can handle it (1643 energy). The water temperature is 59.2°, about average for this time of year, nothing unusual. Friday turns ugly with 6ft but a cross-on SE wind at 12 mph, choppy and poor. Saturday the 18th cleans up: 4.6ft S swell at 12 seconds, light cross-off, then afternoon goes offshore with 4.3ft S at 11 seconds—gentle offshore and clean. Good for a fun session, but not the big stuff.
Then we hit a gap: Sunday and Monday are marginal or poor, with onshore winds and messy conditions. The next real highlight is Tuesday the 21st. Morning: 7.2ft SSW groundswell at 14 seconds, glassy again—excellent for experienced surfers (1961 energy). Afternoon: 7.5ft SSW at 14 seconds, light cross-off, clean. That’s the best moderate-size swell of the week. Wednesday the 22nd gets big—11.5ft SW at 14 seconds—but it’s marginal with a fresh cross-off wind, and the energy is huge (4201). That’s only for experts, and the long period means it’ll be pitching hard on the reef. Thursday the 23rd is a write-off with strong onshore winds.
Now for the long-range standout: Wednesday the 29th. Morning shows 13ft SSW groundswell at 14 seconds, light cross-off, clean—excellent for experienced surfers, and the energy is massive (6403). Afternoon holds 11.5ft SSW at 14 seconds, also clean. That’s a proper swell, but it’s two weeks out, so keep an eye on it. The forecast is promising but less certain this far ahead. Black Rocks is inconsistent, so when it lines up like this, it’s worth the wait. Expect crowds if it fires.
Overall, the best bets are Thursday the 16th for glassy perfection at 7.2ft, and Tuesday the 21st for clean 7.5ft groundswell. The 29th is the big one if
Short Range ForecastMostly dry. Very mild (max 16°C on Wed afternoon, min 14°C on Tue morning). Wind will be generally light. | Days 4-6 Weather SummaryMostly dry. Very mild (max 19°C on Fri night, min 14°C on Sun night). Winds increasing (light winds from the ESE on Fri night, fresh winds from the SSE by Sun night). | ||||||||||||||||||||
Tuesday 14 | Wednesday 15 | Thursday 16 | Friday 17 | Saturday 18 | Sunday 19 | Monday 20 | |||||||||||||||
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) | S 9 | S 9 | SW 18 | SW 17 | SW 16 | SW 14 | SW 13 | SW 13 | SW 12 | SW 11 | SW 10 | SSW 10 | S 12 | S 11 | SW 13 | SW 11 | SW 11 | SW 10 | SSW 11 | SSW 11 | SSW 12 |
Wave Graph | |||||||||||||||||||||
57 | 55 | 108 | 734 | 2758 | 2708 | 1643 | 1086 | 869 | 716 | 494 | 378 | 520 | 418 | 816 | 754 | 690 | 676 | 955 | 954 | 892 | |
Wind (km/h) | |||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | cross-off | cross-off | cross-off | cross-off | cross-off | glassy | glassy | cross-off | glassy | cross-on | cross-on | on | cross-off | off | cross | cross-on | cross | cross-on | cross-on | cross | cross-off |
High Tide | 3:28PM1.56m | 3:43AM1.57m | 4:13PM1.61m | 4:28AM1.54m | 4:56PM1.62m | 5:11AM1.48m | 5:38PM1.59m | 5:54AM1.39m | 6:19PM1.52m | 6:36AM1.28m | 7:00PM1.42m | 7:21AM1.17m | 7:44PM1.31m | ||||||||
Low Tide | 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 | 12:00PM0.15m | 00:39AM0.24m | 12:39PM0.27m | 1:24AM0.34m | 1:20PM0.39m | 2:13AM0.43m | |||||||
7:50 | — | — | 7:50 | — | — | 7:48 | — | — | 7:48 | — | — | 7:48 | — | — | 7:48 | — | — | 7:47 | — | — | |
— | 5:52 | — | — | 5:53 | — | — | 5:53 | — | — | 5:54 | — | — | 5:55 | — | — | 5:55 | — | — | 5:57 | — | |
mm | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
Temp °C | 14 | 15 | 15 | 15 | 16 | 16 | 15 | 16 | 16 | 16 | 18 | 19 | 16 | 17 | 16 | 16 | 16 | 15 | 14 | 14 | 14 |
Feels °C | 11 | 12 | 12 | 13 | 16 | 17 | 15 | 16 | 16 | 13 | 14 | 17 | 14 | 15 | 15 | 16 | 15 | 11 | 10 | 10 | 10 |
Swell 1 Height (m) Direction Period (s) | W 10 | W 10 | W 9 | SW 17 | SW 16 | SW 14 | SW 13 | SW 13 | SW 12 | SW 11 | SW 10 | SSW 10 | S 12 | S 11 | SW 13 | SW 11 | SW 11 | SW 10 | SSW 11 | SSW 11 | SSW 12 |
100 | 94 | 81 | 734 | 2758 | 2708 | 1643 | 1086 | 869 | 716 | 494 | 378 | 520 | 418 | 816 | 754 | 690 | 676 | 955 | 954 | 892 | |
Swell 2 Height (m) Direction Period (s) | S 9 | S 9 | S 8 | SW 11 | W 9 | — | — | — | — | E 12 | S 14 | S 12 | WSW 9 | WSW 9 | S 11 | SSE 10 | SSE 10 | SSE 10 | SE 10 | W 9 | SSW 16 |
57 | 55 | 34 | 187 | 38 | — | — | — | — | 3 | 4 | 136 | 98 | 126 | 338 | 173 | 104 | 55 | 25 | 26 | 402 | |
Swell 3 Height (m) Direction Period (s) | SW 13 | SW 12 | SW 18 | W 9 | — | — | — | — | — | — | E 11 | SSW 16 | SW 14 | SW 13 | — | ESE 7 | E 8 | W 10 | SE 10 | SSW 18 | W 9 |
42 | 39 | 108 | 56 | — | — | — | — | — | — | 3 | 24 | 151 | 162 | — | 5 | 5 | 72 | 48 | 31 | 25 | |
Wind waves Height (m) Direction Period (s) | — | WNW 3 | — | — | — | — | — | — | — | — | SSE 3 | ESE 5 | — | WNW 3 | — | WSW 4 | — | — | — | SE 4 | — |
— | 1 | — | — | — | — | — | — | — | — | 7 | 42 | — | 3 | — | 11 | — | — | — | 11 | — | |
Nearest Offshore or Glassy | |||||||||||||||||||||
Distance (km) | 4 | 4 | 4 | 0 | 0 | 0 | 0 | 0 | 0 | 9 | 9 | 5 | 0 | 0 | 9 | 5 | 22 | 23 | 9 | 22 | 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.










