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Surf Forecasts:

Extensions surfForecast / Cape Town / South Africa

information circle48hr Weather and Surf, issued 7 am Sunday 15 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
18.9° C
 (Which is slightly cooler than normal)

How big are the waves at Extensions today?

The current surf forecast for Extensions at 2PM is: 1.0m 11s primary swell from a Southwest direction and 0.4m 14s secondary swell from a South-southwest direction (forecast issued at 07:00am March 15). An open ocean swell of 1.1m 6s is not directed at the surf break. The wind direction is predicted to be cross-offshore.

Time (SAST) & DateWave HeightWave Period
Morning (15 Mar)3.5ft (1.0m)11s
Afternoon (15 Mar)3ft (0.9m)10s
Evening (15 Mar)3.5ft (1.0m)13s

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

Updates in  hr  min  s Forecast update imminent 
16 DaysHourly
Print Table
Sunday
15
Monday
16
Tuesday
17
Wed
18
5 AM8 AM11 AM2 PM5 PM8 PM11 PM2 AM5 AM8 AM11 AM2 PM5 PM8 PM11 PM2 AM5 AM8 AM11 AM2 PM5 PM8 PM11 PM2 AM
Rating
(10 max)
0
0
1
1
0
0
1
1
1
0
1
0
0
0
0
0
0
0
0
2
0
1
1
1
Swell
Height Map
See all maps
Wave Height (m) & direction (?)
1
SW
1
SW
1
SW
1
SW
0.7
SSW
0.9
SSW
1.2
SSW
1.3
SSW
1.4
SSW
1.6
SSW
1.6
SSW
1.5
SSW
1.3
SSW
1.3
SSW
1.3
SSW
1.3
SSW
1.3
SSW
1.4
SSW
1.4
SSW
1.4
SSW
1.4
SSW
1.5
SSW
1.4
SW
1.4
SSW
Period(s) (?)111111111413131312121212121212121211111111111111
Wave
Graph
(?)Metric surfscale
Energy kJ (?)250237233224173277491560598703722605491483483483475475466458450543485441
Wind
(km/h)
30
ESE
25
SE
20
SE
20
SSE
25
SSE
30
SE
25
SE
30
SE
25
SE
30
S
30
SSE
35
SSE
45
SSE
50
SE
50
SE
45
SE
45
SE
40
SE
25
ESE
20
SE
25
SE
30
SE
30
SE
30
SSE
Wind State (?)
onshore
cross-onshore
cross-shore
cross-offshore
offshore
glassy
cross-
off		cross-
off		cross-
off		cross-
off		cross-
off		cross-
off		cross-
off		cross-
off		cross-
off		crosscross-
off		cross-
off		cross-
off		cross-
off		cross-
off		cross-
off		cross-
off		cross-
off		cross-
off		cross-
off		cross-
off		cross-
off		cross-
off		cross-
off
High Tide
/ height (m)
1:28PM
1.24
1:51AM
1.36
2:01PM
1.36
2:20AM
1.50
2:34PM
1.47
Low Tide
/ height (m)
7:32AM
0.43
7:42PM
0.30
8:03AM
0.29
8:11PM
0.19
8:34AM
0.16
8:40PM
0.09
Sunday
15
Monday
16
Tuesday
17
Wed
18
Sunrise-6:43-------6:45-------6:46------
Sunset----7:05-------7:02-------7:01---
clear
clear
clear
part cloud
part cloud
part cloud
part cloud
clear
part cloud
clear
part cloud
part cloud
part cloud
cloud
cloud
cloud
part cloud
cloud
cloud
cloud
cloud
part cloud
part cloud
part cloud
Rain (mm)
------------------------
Temp. °C191920201920212020202120202019191919212121202020
Feels °C (?)151618191818201818181917151312131314191919171818
  • Map Icons:
  • Break
  • Live Wave Height (m)
  • Live Wind Speed (km/h)
  • Surf Rating (10 Max)
  • Ocean Swells (m)
  • Wind Speed (km/h)
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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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