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Surf Forecasts:

Extensions surfForecast / Cape Town / South Africa

information circle48hr Weather and Surf, issued 1 am Tuesday 13 Jan 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
19.6° C
 (Which is normal for this time of year)

How big are the waves at Extensions today?

The current surf forecast for Extensions at 8AM is: 1.8m 12s primary swell from a Southwest direction and 0.1m 11s secondary swell from a Northwest direction (forecast issued at 01:00am January 13). The wind direction is predicted to be cross-shore.

Time (SAST) & DateWave HeightWave Period
Morning (13 Jan)6ft (1.8m)12s
Afternoon (13 Jan)6ft (1.8m)11s
Evening (13 Jan)6ft (1.8m)11s

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

Updates in  hr  min  s Forecast update imminent 
12 DaysHourly
Print Table
Tuesday
13
Wednesday
14
Thursday
15
11 PM2 AM5 AM8 AM11 AM2 PM5 PM8 PM11 PM2 AM5 AM8 AM11 AM2 PM5 PM8 PM11 PM2 AM5 AM8 AM11 AM2 PM5 PM8 PM
Rating
(10 max)
3
2
2
2
2
1
1
2
2
2
3
3
1
0
0
0
0
2
2
2
2
1
0
0
Swell
Height Map
See all maps
Wave Height (m) & direction (?)
2
SW
1.8
SW
1.8
SW
1.8
SW
1.6
SW
1.8
SW
1.8
SW
1.8
SW
1.8
SW
1.6
SW
1.6
SW
1.6
SW
1.5
SW
1.6
SW
1.7
SW
2.4
SW
3
SW
3.5
SW
3.5
SW
3.5
SSW
3
SSW
2.2
SSW
1.9
SW
1.7
SW
Period(s) (?)131212121212111111111111111112131212111012111111
Wave
Graph
(?)Metric surfscale
Energy kJ (?)12209708848847238128367567566506506005445897781853294334413210230524711198806664
Wind
(km/h)
20
SE
20
SSE
20
SSE
15
S
15
S
20
SSW
25
S
20
SSE
20
SE
20
SSE
10
S
5
W
15
W
25
WNW
30
NW
30
NW
45
S
45
SSE
40
SSE
35
SE
35
SE
45
SE
50
SE
50
SE
Wind State (?)
onshore
cross-onshore
cross-shore
cross-offshore
offshore
glassy
cross-
off		cross-
off		cross-
off		crosscrosscrosscrosscross-
off		cross-
off		cross-
off		cross-
off		onononcross-
on		cross-
on		crosscross-
off		cross-
off		cross-
off		cross-
off		cross-
off		cross-
off		cross-
off
High Tide
/ height (m)
11:22PM
0.97
11:33AM
1.09
12:36AM
1.03
12:39PM
1.14
1:27AM
1.11
1:29PM
1.21
Low Tide
/ height (m)
5:17AM
0.65
6:24PM
0.51
6:36AM
0.60
7:17PM
0.44
7:29AM
0.52
7:58PM
0.35
Tuesday
13
Wednesday
14
Thursday
15
Sunrise---5:47-------5:48-------5:48----
Sunset-------8:00-------8:00-------8:00
clear
clear
clear
clear
clear
clear
clear
clear
clear
clear
clear
clear
clear
clear
clear
clear
light rain
light rain
cloud
part cloud
part cloud
part cloud
part cloud
part cloud
Rain (mm)
----------------21------
Temp. °C191919191920201919191919202122211917171717171717
Feels °C (?)17171818181817161617181918181918129999977
  • 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

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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 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.

View detailed surf forecast for Extensions at:
surf-forecast.com

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