Extensions surfForecast / Cape Town / South Africa

information circle48hr Weather and Surf, issued 7 pm Tuesday 07 Apr 2026 SAST
Forecast update in hr  min  s Forecast update imminent
Extensions surf forecast is for near shore open water. Breaking waves will often be smaller at less exposed spots.
Today's Extensions sea temperature is
20.2° C
(Which is 1.5°C warmer than normal for this time of year)

How big are the waves at Extensions today?

The current surf forecast for Extensions at 12AM is: 1.7m 13s primary swell from a South direction and 1.2m 11s secondary swell from a Southwest direction (forecast issued at 07:00pm April 07). An open ocean swell of 1.6m 6s is not directed at the surf break. The wind direction is predicted to be cross-offshore.

Time (SAST) & DateWave HeightWave Period
Morning (08 Apr)--
Afternoon (08 Apr)7.5ft (2.3m)14s
Evening (08 Apr)6ft (1.9m)13s

Table - waves today at Extensions. (Swell directed towards the surf break)


Updates in  hr  min  s Forecast update imminent
Tuesday
07
Wednesday
08
Thursday
09
Friday
10
5PM8PM11PM2AM5AM8AM11AM2PM5PM8PM11PM2AM5AM8AM11AM2PM5PM8PM11PM2AM5AM8AM11AM2PM
Rating
(10 max)
1
1
1
3
3
4
4
3
4
4
4
3
4
4
4
4
3
3
4
3
0
0
0
0
Swell
Height Map
Wave Height (m) & direction (?)
2.1
S
2
S
1.7
S
1.8
S
1.5
S
1.6
S
1.5
S
1.4
S
1.6
SW
1.6
SW
1.6
SW
1.5
SW
1.5
SW
1.5
SW
1.5
SW
1.1
SW
1.3
SW
1.5
SW
1.7
SW
2.2
SW
2.2
SW
2.1
SW
2.1
SW
2.1
SW
Period(s) (?)131313131313131312121111121212171616151514141414
Wave
Graph
(?)Metric surfscale
Energy kJ (?)1584137695710217248527266496506386175635935935936338231055126220272004183616571570
Wind
(km/h)
40
SE
45
SE
35
ESE
30
ESE
20
ESE
15
ESE
0
ESE
10
SSW
10
SSE
15
SSE
15
ESE
10
SE
10
SSE
10
ESE
10
SE
15
SE
15
SE
15
ESE
10
E
15
N
25
NW
20
NNW
20
NW
25
W
Wind State (?)
onshore
cross-onshore
cross-shore
cross-offshore
offshore
glassy
cross-
off
cross-
off
cross-
off
offcross-
off
offglasscrosscross-
off
cross-
off
cross-
off
cross-
off
cross-
off
offcross-
off
cross-
off
cross-
off
cross-
off
offcrosscross-
on
cross-
on
cross-
on
on
High Tide
/ height (m)
6:04PM
1.15
6:13AM
1.14
6:48PM
1.05
6:59AM
1.03
8:07PM
0.97
8:36AM
0.95
Low Tide
/ height (m)
12:01AM
0.50
12:29PM
0.49
12:43AM
0.61
1:25PM
0.59
2:08AM
0.70
Tuesday
07
Wednesday
08
Thursday
09
Friday
10
Sunrise-----7:03-------7:03-------7:03--
Sunset6:32-------6:31-------6:30-------
clear
clear
clear
clear
clear
clear
clear
clear
clear
part cloud
cloud
cloud
clear
clear
clear
clear
clear
clear
clear
clear
clear
clear
part cloud
part cloud
Rain (mm)
------------------------
Temp. °C181818171820232321212020202021222122232522212120
Feels °C (?)121112121517222120201920202020202020222319181818
  • 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

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 Extensions 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.


Nearest locationNearest
Nearest locationNearest
Nearest locationNearest