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Surf Forecasts:

Extensions surfForecast / Cape Town / South Africa

information circle48hr Weather and Surf, issued 1 pm Tuesday 10 Mar 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
19.3° C
 (Which is normal for this time of year)

How big are the waves at Extensions today?

The current surf forecast for Extensions at 9PM is: 0.9m 11s primary swell from a Southwest direction and 0.6m 15s secondary swell from a Southwest direction (forecast issued at 01:00pm March 10). An open ocean swell of 1.3m 7s is not directed at the surf break. The wind direction is predicted to be cross-offshore.

Time (SAST) & DateWave HeightWave Period
Morning (10 Mar)4ft (1.2m)11s
Afternoon (10 Mar)3.5ft (1.1m)11s
Evening (10 Mar)3ft (0.9m)11s

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

Updates in  hr  min  s Forecast update imminent 
16 DaysHourly
Print Table
Tuesday
10
Wednesday
11
Thursday
12
Friday
13
11 AM2 PM5 PM8 PM11 PM2 AM5 AM8 AM11 AM2 PM5 PM8 PM11 PM2 AM5 AM8 AM11 AM2 PM5 PM8 PM11 PM2 AM5 AM8 AM
Rating
(10 max)
1
0
0
0
0
2
2
2
2
2
1
2
3
3
2
1
1
1
0
1
1
1
0
2
Swell
Height Map
See all maps
Wave Height (m) & direction (?)
1.2
SSW
1.1
SW
1
SW
1
SW
0.7
SW
0.7
SW
0.7
SW
0.7
SW
0.8
SW
0.8
SW
0.8
SW
0.9
SW
0.8
SSW
1.1
SW
1.2
SW
1
SSW
1
SW
0.9
SSW
1.2
SW
0.9
SSW
0.9
SW
1
SW
0.9
WSW
0.8
WSW
Period(s) (?)111111111515141413131313161212131313121212121319
Wave
Graph
(?)Metric surfscale
Energy kJ (?)335288246242209209203179215250246290280380423342315261416243205268304402
Wind
(km/h)
20
ESE
25
SE
25
SE
25
SE
25
ESE
25
ESE
20
ESE
15
E
5
SE
10
S
10
S
5
ESE
10
SE
5
ESE
10
S
15
SSW
10
S
15
S
20
S
20
SSE
20
SSE
20
SSE
25
SSE
25
SE
Wind State (?)
onshore
cross-onshore
cross-shore
cross-offshore
offshore
glassy
cross-
off		cross-
off		cross-
off		cross-
off		cross-
off		offoffoffcross-
off		cross-
off		crossglasscross-
off		cross-
off		crosscross-
on		crosscrosscrosscross-
off		cross-
off		cross-
off		cross-
off		cross-
off
High Tide
/ height (m)
7:10PM
1.01
7:29AM
1.02
8:37PM
0.90
9:28AM
0.93
11:35PM
0.93
Low Tide
/ height (m)
12:59PM
0.53
1:01AM
0.61
2:00PM
0.64
2:25AM
0.73
4:55PM
0.67
5:55AM
0.70
Tuesday
10
Wednesday
11
Thursday
12
Friday
13
Sunrise-------6:41-------6:41-------6:43
Sunset--7:10-------7:09-------7:08-----
clear
clear
clear
clear
clear
clear
clear
clear
clear
clear
clear
clear
clear
clear
part cloud
clear
part cloud
clear
clear
clear
clear
clear
clear
clear
Rain (mm)
------------------------
Temp. °C252826282827272830312628293027242222222221212120
Feels °C (?)222524262524242629302628282926232323222220202018
  • 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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