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Surf Forecasts:

Extensions surfForecast / Cape Town / South Africa

information circle48hr Weather and Surf, issued 1 pm Thursday 20 Nov 2025 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
16.0° C
 (Which is 2.0°C colder than average for this time of year)

How big are the waves at Extensions today?

The current surf forecast for Extensions at 4PM is: 2.5m 14s primary swell from a Southwest direction and 1.6m 18s secondary swell from a South-southwest direction (forecast issued at 01:00pm November 20). An open ocean swell of 1.4m 5s is not directed at the surf break. The wind direction is predicted to be cross-offshore.

Time (SAST) & DateWave HeightWave Period
Morning (20 Nov)8ft (2.4m)16s
Afternoon (20 Nov)7.5ft (2.3m)14s
Evening (20 Nov)10ft (3.0m)15s

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

Updates in  hr  min  s Forecast update imminent 
12 DaysHourly
Print Table
Thursday
20
Friday
21
Saturday
22
Sunday
23
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)
3
2
2
2
2
2
2
1
0
0
0
0
0
0
0
0
0
0
0
0
0
0
1
1
Swell
Height Map
See all maps
Wave Height (m) & direction (?)
2.5
SW
1.8
SSW
2.5
SW
3
SW
3
SW
3
SW
3
SW
2.5
SW
2.4
SW
2.3
SW
2.2
SW
2.1
SW
2.1
SW
1.9
SW
1.6
SW
1.5
SW
1.6
SW
1.6
SW
1.3
WSW
1.3
WSW
1.4
SW
1.4
SW
1.5
SW
1.7
S
Period(s) (?)151814151515141414131313131212121212121212121210
Wave
Graph
(?)Metric surfscale
Energy kJ (?)28512024267136783286337730672573207318901619146813311083785646736672480472505522604558
Wind
(km/h)
35
SE
40
SSE
40
SSE
45
SE
45
SE
40
SE
40
SE
45
SE
50
SE
50
SSE
55
SE
55
SE
50
SE
50
SE
50
SE
45
ESE
45
SE
55
SE
55
SE
55
SSE
45
SE
40
SSE
35
SSE
35
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		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		cross-
off		cross-
off
High Tide
/ height (m)
3:05PM
1.44
3:31AM
1.38
3:36PM
1.42
4:03AM
1.36
4:08PM
1.38
4:36AM
1.32
Low Tide
/ height (m)
9:02AM
0.27
9:23PM
0.16
9:33AM
0.28
9:52PM
0.18
10:04AM
0.31
10:23PM
0.22
Thursday
20
Friday
21
Saturday
22
Sunday
23
Sunrise-------5:30-------5:30-------5:28
Sunset--7:31-------7:32-------7:34-----
clear
clear
clear
clear
clear
clear
clear
clear
clear
clear
clear
clear
clear
clear
clear
clear
clear
clear
clear
clear
clear
clear
clear
clear
Rain (mm)
------------------------
Temp. °C181819181818181718181818181818181919191919181919
Feels °C (?)1312131111121210101099101010111210101012121413
  • 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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