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Surf Forecasts:

Black Rocks surf break

Black Rocks surfForecast / Cape Town / South Africa

information circle12 Day Weather and Surf, issued 7 pm Tuesday 16 Sep 2025 SAST
Forecast 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
16.0° C
 (Which is normal for this time of year)

Best Forecast Surf Conditions for Black Rocks this week:

The surf forecast for Black Rocks over the next 12 days: The first swell (rated 1 star or higher) is forecast to arrive on Wednesday (Sep 17) at 5AM. The primary swell is predicted to be 3.0m and 12s period with a secondary swell of 1.6m 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 12 days are 3.0m 12s and forecast to arrive on Wednesday (Sep 17) at 8AM. Winds are predicted to be cross-offshore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 0.6m 10s period and expected on Thursday (Sep 18) at 11AM.

Wave TypeTime (SAST) & Date Wave Height & Period
Next good surf (1 star+) 5AM (Wed 17th Sep)10ft (3.0m) 12s
Best Surf 5AM (Wed 17th Sep)10ft (3.0m) 12s
Most Powerful 8AM (Wed 17th Sep)10ft (3.0m) 12s

Table - best surf conditions forecast for Black Rocks over the next 12 days.

Updates in  hr  min  s Forecast update imminent 
12 DaysHourly
Print Table

Short Range Forecast Mostly dry. Very mild (max 17°C on Fri afternoon, min 12°C on Thu night). Mainly fresh winds.

Days 3-6 Weather Summary Heavy rain (total 20mm), heaviest during Mon morning. Very mild (max 18°C on Fri night, min 15°C on Fri night). Winds increasing (light winds from the NE on Sat morning, strong winds from the SE by Sun night).

Wednesday
17
Thursday
18
Friday
19
Saturday
20
Sunday
21
Monday
22
Tue
23
NightAMPMNightAMPMNightAMPMNightAMPMNightAMPMNightAMPMNightAMPM
Rating
(10 max)
2
4
4
4
3
1
0
0
0
0
2
2
0
0
0
0
0
2
1
2
1
Swell
Height Map
See all maps
Wave Height (m) & direction (?)
3
SSW
3
SSW
2.5
SSW
2.2
SSW
1.8
SSW
1.8
SSW
1.6
SSW
1.5
SSW
1.3
SSW
0.7
S
1.1
S
1.1
S
1
S
0.9
SSE
2.1
SSE
1.8
SE
1
S
1.8
S
1.3
S
0.8
SW
0.9
SW
Period(s) (?)1212121211111212111312121212667771211
Wave
Graph
(?)Metric surfscale
Energy kJ (?)215524031978128075773171855941516936837730423228926389329173167176
Wind
(km/h)
15
S
10
SW
15
SSW
10
SW
5
SSW
15
SSE
35
ESE
25
ESE
35
SE
20
ESE
15
WSW
15
SW
20
SSE
30
SE
45
SE
35
SE
10
SSE
15
SSW
20
SW
10
WNW
15
SW
Wind State (?)
onshore
cross-onshore
cross-shore
cross-offshore
offshore
glassy
crosscross-
off		cross-
off		cross-
off		cross-
off		crosscross-
on		cross-
on		cross-
on		cross-
on		offcross-
off		cross-
on		cross-
on		cross-
on		cross-
on		crosscross-
off		cross-
off		offcross-
off
High Tide
/ height (m)
12:11AM
1.14
12:49PM
1.23
1:08AM
1.25
1:32PM
1.36
1:48AM
1.34
2:07PM
1.47
2:22AM
1.41
2:37PM
1.55
2:52AM
1.46
3:05PM
1.59
3:21AM
1.48
3:32PM
1.60
3:48AM
1.48
3:58PM
1.58
Low Tide
/ height (m)
6:34AM
0.41
7:06PM
0.39
7:21AM
0.30
7:48PM
0.27
7:58AM
0.21
8:23PM
0.18
8:29AM
0.15
8:53PM
0.11
8:57AM
0.11
9:21PM
0.08
9:24AM
0.10
9:47PM
0.07
9:50AM
0.12
Wednesday
17
Thursday
18
Friday
19
Saturday
20
Sunday
21
Monday
22
Tue
23
Sunrise-6:43--6:41--6:39--6:39--6:37--6:35--6:35-
Sunset--6:37--6:38--6:38--6:39--6:40--6:42--6:42
part cloud
part cloud
clear
part cloud
part cloud
part cloud
clear
part cloud
clear
part cloud
clear
clear
clear
part cloud
clear
clear
thunderstorm
rain showers
rain showers
clear
clear
Rain (mm)
----------------1911--
Temp. °C131313141414141317181617161516161516161515
Feels °C (?)81010111112981213131615101181213151312
  • Map Icons:
  • Break
  • Live Wave Height (m)
  • Live Wind Speed (km/h)
  • Surf Rating (10 Max)
  • Ocean Swells (m)
  • Wind Speed (km/h)
Map placeholder

Eyeball surf reportRecent Eyeball Surf Reports for Cape Town

  1. weather stationWind Update Continuing clean conditions at Black Rocks (calm at Meadowridge wx 29 km from Black Rocks). A 3.2m groundswell from the SSW

    27 minutes ago Black Rocks
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29 km away, 27 min ago

0 km/h
N
0.0
16.0
Air / Water (°C)
Please reload the page to see if there are any updates.

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.

View detailed surf forecast for Black Rocks at:
surf-forecast.com

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 12 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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