Extensions surfForecast / Cape Town / South Africa

information circle48hr Weather and Surf, issued 7 am Thursday 30 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
18.3° C
(Which is slightly warmer than usual)

How big are the waves at Extensions today?

The current surf forecast for Extensions at 3PM is: 2.5m 17s primary swell from a South-southwest direction (forecast issued at 07:00am April 30). An open ocean swell of 1.0m 12s is not directed at the surf break. The wind direction is predicted to be cross-shore.

Time (SAST) & DateWave HeightWave Period
Morning (30 Apr)4ft (1.2m)11s
Afternoon (30 Apr)8ft (2.5m)17s
Evening (30 Apr)10ft (3.0m)15s

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


Updates in  hr  min  s Forecast update imminent

Short Range Forecast

Light rain (total 2mm), mostly falling on Fri night. Very mild (max 18°C on Sat night, min 15°C on Thu morning). Winds increasing (light winds from the SSW on Thu night, strong winds from the NNW by Fri night).

Thursday
30
Friday
1
Saturday
2
Sun
3
5 AM
8 AM
11 AM
2 PM
5 PM
8 PM
11 PM
2 AM
5 AM
8 AM
11 AM
2 PM
5 PM
8 PM
11 PM
2 AM
5 AM
8 AM
11 AM
2 PM
5 PM
8 PM
11 PM
2 AM
Rating
(10 max)
1
1
2
3
4
4
4
2
0
1
0
0
0
0
0
0
0
0
0
0
1
0
1
0
Swell
Height Map
<span class="translation_missing" title="translation missing: en.components.forecast-table.maps.snow_map">Snow Map</span><span class="translation_missing" title="translation missing: en.components.forecast-table.maps.snow_map">Snow Map</span><span class="translation_missing" title="translation missing: en.components.forecast-table.maps.snow_map">Snow Map</span>
<span class="translation_missing" title="translation missing: en.components.forecast-table.maps.snow_map">Snow Map</span><span class="translation_missing" title="translation missing: en.components.forecast-table.maps.snow_map">Snow Map</span><span class="translation_missing" title="translation missing: en.components.forecast-table.maps.snow_map">Snow Map</span>
<span class="translation_missing" title="translation missing: en.components.forecast-table.maps.snow_map">Snow Map</span><span class="translation_missing" title="translation missing: en.components.forecast-table.maps.snow_map">Snow Map</span><span class="translation_missing" title="translation missing: en.components.forecast-table.maps.snow_map">Snow Map</span>
<span class="translation_missing" title="translation missing: en.components.forecast-table.maps.snow_map">Snow Map</span><span class="translation_missing" title="translation missing: en.components.forecast-table.maps.snow_map">Snow Map</span><span class="translation_missing" title="translation missing: en.components.forecast-table.maps.snow_map">Snow Map</span>
Wave
Height (m)
Direction
Period (s)
1.2
SW
11
1.3
SW
12
1.1
SSW
14
2.4
SSW
17
3
SSW
16
3
SSW
15
3
SSW
14
2.5
SSW
14
2.5
SW
13
2.5
SW
13
2.5
SW
13
2.5
SW
12
3
SW
12
2.5
SW
12
3
WSW
12
3
SW
12
3.5
WSW
11
3
WSW
11
2.5
WSW
11
2.5
WSW
11
2.5
WSW
11
2.3
W
11
2.3
W
11
2.1
W
11
Wave Graph
Metric surfscale
Energy kJ
354
463
508
3388
4285
4209
3613
2856
2310
2345
2274
2101
2185
1902
2590
2593
2894
2131
1658
1437
1375
1223
1190
991
Wind (km/h)
30
SE
25
SE
20
SSE
20
S
15
SSW
10
SSW
15
W
15
NW
25
NNW
30
NNW
40
NNW
45
NNW
45
NNW
50
NNW
45
NNW
45
NNW
45
N
45
N
45
N
35
NNW
30
NNW
25
NNW
25
NNW
25
NNW
cross-off
cross-off
cross-off
cross
cross
cross-on
on
cross-on
cross-on
cross
cross
cross-on
cross-on
cross
cross
cross
cross
cross
cross
cross
cross
cross-on
cross
cross-on
High Tide
2:43PM1.40m
2:47AM1.51m
3:12PM1.42m
3:17AM1.50m
3:42PM1.41m
Low Tide
8:39AM0.12m
8:44PM0.22m
9:07AM0.11m
9:14PM0.22m
9:35AM0.12m
9:43PM0.24m
clear
clear
clear
clear
clear
clear
clear
clear
cloud
cloud
cloud
cloud
part cloud
cloud
part cloud
light rain
light rain
cloud
cloud
cloud
cloud
cloud
clear
clear
<span class="translation_missing" title="translation missing: en.weather_tables.sunrise">Sunrise</span>
7:20
7:20
7:20
7:22
<span class="translation_missing" title="translation missing: en.weather_tables.sunset">Sunset</span>
6:06
6:05
6:04
6:02
1
1
Temp °C
15
15
16
16
16
16
16
16
16
15
16
17
16
16
16
15
15
15
16
16
17
18
17
17
9
10
12
13
13
14
13
13
12
9
8
8
7
7
8
7
7
7
8
10
12
14
13
14
Swell 1
Height (m)
Direction
Period (s)
1.3
SSE
12
1.3
SSE
12
1.3
SSE
12
2.4
SSW
17
3
SSW
16
3
SSW
15
3
SSW
14
2.5
SSW
14
2.5
SW
13
2.5
SW
13
2.5
SW
13
2.5
SW
12
3
SW
12
2.5
SW
12
3
WSW
12
3
SW
12
3.5
WSW
11
3
WSW
11
2.5
WSW
11
2.5
WSW
11
2.5
WSW
11
2.3
W
11
2.3
W
11
2.1
W
11
Energy kJ
525
508
436
3388
4285
4209
3613
2856
2310
2345
2274
2101
2185
1902
2590
2593
2894
2131
1658
1437
1375
1223
1190
991
Swell 2
Height (m)
Direction
Period (s)
1.2
SW
11
1.3
SW
12
1.2
SW
10
1
SSE
12
0.9
SSE
12
0.7
SE
12
0.6
SSE
11
0.5
SE
11
0.4
SSE
11
0.4
SE
11
0.2
SSE
11
0.2
SSE
10
0.1
SE
10
0.5
S
15
0.5
S
14
0.3
S
15
0.4
S
15
0.7
S
11
0.9
S
11
0.9
S
11
0.9
S
11
0.9
S
11
0.9
S
11
0.9
WSW
16
Energy kJ
354
463
310
289
211
135
85
59
47
30
11
10
4
109
103
39
68
121
195
195
191
191
181
412
Swell 3
Height (m)
Direction
Period (s)
0.6
SSW
15
0.6
SW
15
1.1
SSW
14
0.5
W
8
0.1
SE
10
0.1
SE
10
0.1
W
21
0.1
SW
21
0.4
SSE
15
0.4
SSE
14
0.4
SSE
14
0.4
WSW
18
0.5
WSW
18
0.8
WSW
17
0.8
S
11
Energy kJ
150
176
508
33
4
4
9
17
72
69
69
126
178
321
143
Wind waves
Height (m)
Direction
Period (s)
0.9
SE
4
0.7
SE
4
0.8
NW
4
1
NW
4
1.5
NW
5
1.7
NW
6
2.2
NW
6
1.8
NNW
6
2
NNW
6
1.8
NNW
6
2
NNW
6
2.1
NNW
6
2
NNW
6
1.7
NNW
6
1.2
NNW
6
Energy kJ
29
18
17
36
115
182
377
211
289
222
274
333
315
193
81
Nearest Offshore or Glassy
Rating
(10 max)
3
3
3
4
4
4
5
4
4
4
4
4
4
4
3
3
3
4
3
3
1
1
2
4
Distance (km)
30
25
26
26
5
5
1
1
1
35
167
167
167
264
167
224
225
50
167
26
25
24
26
1
Best forecast wave conditions in Cape Town
Rating
(10 max)
3
3
3
4
5
5
5
4
4
4
3
2
2
4
4
Best forecast wave conditions in South Africa
Rating
(10 max)
4
4
4
5
5
6
6
5
5
5
5
4
4
4
4
4
4
4
4
4
5
4
4
4
Header Global
Rating
(10 max)
5
5
5
5
5
6
6
6
7
7
7
6
5
5
9
9
5
5
5
4
4
4
4
4
  • 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