Derde Steen surf break

Derde Steen surfForecast / Cape Town / South Africa

information circle48hr Weather and Surf, issued 7 pm Friday 15 May 2026 SAST
Forecast update in hr  min  s Forecast update imminent
Derde Steen surf forecast is for near shore open water. Breaking waves will often be smaller at less exposed spots.
Today's Derde Steen sea temperature is
15.5° C
(Which is 1.6°C colder than average for this time of year)

How big are the waves at Derde Steen today?

The current surf forecast for Derde Steen at 1AM is: 2.5m 14s primary swell from a Southwest direction and 1.9m 13s secondary swell from a South direction (forecast issued at 07:00pm May 15). The wind direction is predicted to be cross-offshore and the swell rating is 4.

Time (SAST) & DateWave HeightWave Period
Morning (16 May)7ft (2.2m)13s
Afternoon (16 May)6ft (1.9m)12s
Evening (16 May)5.5ft (1.7m)13s

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


Updates in  hr  min  s Forecast update imminent

Short Range Forecast

Mostly dry. Warm (max 21°C on Sat afternoon, min 15°C on Fri night). Wind will be generally light.

Fri
15
Saturday
16
Sunday
17
Mon
18
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
5 AM
8 AM
11 AM
2 PM
Rating
(10 max)
3
4
4
4
4
4
4
3
3
4
4
3
3
3
2
1
1
1
1
2
2
3
2
1
Swell
Height Map
Height MapHeight MapHeight Map
Height MapHeight MapHeight Map
Height MapHeight MapHeight Map
Height MapHeight MapHeight Map
Wave
Height (m)
Direction
Period (s)
2.3
SSW
14
2.5
SW
14
2.5
SW
14
2.5
SW
13
2.3
WSW
13
2.2
WSW
13
2.1
WSW
12
2
WSW
12
1.8
WSW
12
1.7
WSW
13
1.6
WSW
13
1.5
WSW
13
1.4
WSW
13
1.4
WSW
13
1.2
WSW
13
1.4
WSW
14
1.5
WSW
14
1.5
WSW
13
1.5
WSW
13
1.6
WSW
13
1.6
WSW
13
1.6
WSW
14
1.6
WSW
14
1.6
WSW
14
Wave Graph
Metric surfscale
Energy kJ
1901
2590
2483
2243
1859
1673
1342
1154
1016
928
799
700
659
648
462
799
841
805
793
837
850
902
1042
1028
Wind (km/h)
15
S
15
SSE
10
SE
10
SE
10
ESE
10
ESE
10
ESE
5
S
10
S
10
SE
10
SE
10
SE
10
SE
10
SE
15
SSE
20
SSE
20
SSE
20
SSE
15
SSE
15
SE
15
SSE
15
SE
20
SE
20
SSE
cross
cross
cross-off
cross-off
cross-off
cross-off
cross-off
cross
cross
cross-off
cross-off
cross-off
cross-off
cross-off
cross
cross
cross
cross
cross
cross-off
cross
cross-off
cross-off
cross
High Tide
2:14PM1.48m
2:23AM1.65m
2:57PM1.53m
3:08AM1.66m
3:42PM1.54m
3:55AM1.62m
Low Tide
8:13PM0.14m
8:46AM-0.04m
8:59PM0.10m
9:30AM-0.05m
9:45PM0.10m
10:15AM-0.00m
clear
clear
clear
clear
clear
clear
clear
clear
clear
clear
clear
clear
clear
clear
clear
clear
clear
clear
clear
part cloud
clear
clear
cloud
cloud
<span class="translation_missing" title="translation missing: en.weather_tables.sunrise">Sunrise</span>
7:31
7:31
7:31
<span class="translation_missing" title="translation missing: en.weather_tables.sunset">Sunset</span>
5:53
5:52
5:52
5:52
Temp °C
18
17
16
16
15
15
17
20
21
19
18
18
16
15
17
19
18
16
16
16
15
15
18
20
15
15
14
14
14
14
16
19
19
17
17
17
15
13
15
16
15
13
14
14
14
14
15
17
Swell 1
Height (m)
Direction
Period (s)
2.3
SSW
14
2.5
SW
14
2.5
SW
14
2.5
SW
13
2.3
WSW
13
2.2
WSW
13
2.1
WSW
12
2
WSW
12
1.8
WSW
12
1.7
WSW
13
1.6
WSW
13
1.5
WSW
13
1.4
WSW
13
1.4
WSW
13
1.2
WSW
13
1.4
WSW
14
1.5
WSW
14
1.5
WSW
13
1.5
WSW
13
1.6
WSW
13
1.6
WSW
13
1.6
WSW
14
1.6
WSW
14
1.6
WSW
14
Energy kJ
1901
2590
2483
2243
1859
1673
1342
1154
1016
928
799
700
659
648
462
799
841
805
793
837
850
902
1042
1028
Swell 2
Height (m)
Direction
Period (s)
1.6
SW
12
2.2
S
14
2
S
13
1.9
S
13
1.8
S
13
1.7
S
13
1.6
S
13
1.5
S
12
1.4
S
12
1.4
S
12
1.4
S
12
1.1
S
12
1
S
11
0.9
S
11
0.9
S
11
0.9
S
11
0.6
S
10
0.6
S
10
0.5
S
10
0.5
S
10
0.4
S
10
Energy kJ
710
1894
1440
1247
1104
971
826
649
547
547
535
325
242
189
185
185
71
71
49
50
32
Swell 3
Height (m)
Direction
Period (s)
1.5
WSW
15
0.7
WSW
15
Energy kJ
1014
193
Wind waves
Height (m)
Direction
Period (s)
0.8
S
6
0.8
S
6
0.8
S
5
0.9
S
5
1
S
5
1.4
S
11
1.5
S
5
1.4
S
5
1.3
S
6
1.3
S
6
1.5
S
6
1.3
S
6
1.2
S
6
Energy kJ
41
39
31
36
44
451
117
110
103
108
156
124
96
Nearest Offshore or Glassy
Rating
(10 max)
4
5
4
4
4
4
4
4
4
4
4
3
3
3
3
3
4
4
3
3
3
3
4
4
Distance (km)
3
1
0
0
0
0
0
3
3
0
0
0
0
0
1
37
126
17
3
3
1
0
3
3
Best forecast wave conditions in Cape Town
Rating
(10 max)
6
5
5
5
5
4
4
4
4
4
4
4
3
3
3
3
4
3
3
3
3
4
4
Best forecast wave conditions in South Africa
Rating
(10 max)
6
5
5
5
5
4
4
4
4
4
4
4
4
4
4
4
4
4
4
3
3
4
4
4
Header Global
Rating
(10 max)
6
5
5
5
5
5
4
5
6
5
5
5
4
5
6
9
9
7
4
4
5
8
7
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

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