Nine Mile Reef surfForecast / Cape Town / South Africa

information circle48hr Weather and Surf, issued 1 pm Wednesday 20 May 2026 SAST
Forecast update in hr  min  s Forecast update imminent
Nine Mile Reef surf forecast is for near shore open water. Breaking waves will often be smaller at less exposed spots.
Today's Nine Mile Reef sea temperature is
16.4° C
(Which is slightly cooler than normal)

How big are the waves at Nine Mile Reef today?

The current surf forecast for Nine Mile Reef at 6PM is: 1.8m 8s primary swell from a Southeast direction and 1.0m 8s secondary swell from a South-southeast direction, 0.5m 11s secondary swell from a South-southeast direction (forecast issued at 01:00pm May 20). The wind direction is predicted to be onshore.

Time (SAST) & DateWave HeightWave Period
Morning (20 May)4.5ft (1.3m)8s
Afternoon (20 May)7ft (2.1m)8s
Evening (20 May)6ft (1.8m)8s

Table - waves today at Nine Mile Reef. (Swell directed towards the surf break)


Updates in  hr  min  s Forecast update imminent

Short Range Forecast

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

Wed
20
Thursday
21
Friday
22
Sat
23
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
5 AM
8 AM
Rating
(10 max)
1
!
2
3
1
1
1
1
1
1
1
1
1
2
2
2
2
0
0
0
0
1
1
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)
1.3
SSE
8
2.1
SE
8
1.8
SE
8
1.8
SE
8
0.9
SSE
8
0.4
SSE
11
0.5
SW
13
0.5
SW
13
0.5
SW
13
0.4
SW
12
0.3
SW
20
0.4
SW
20
0.4
SW
19
0.5
SW
18
0.5
SW
18
0.5
SW
18
0.6
SSW
16
0.7
SW
16
0.8
SW
16
0.7
SW
16
0.9
SW
15
0.9
SW
14
0.9
SW
14
0.9
SW
14
Wave Graph
Metric surfscale
Energy kJ
187
623
448
413
87
39
88
87
84
53
60
97
95
157
155
152
179
264
306
248
314
305
297
264
Wind (km/h)
10
ESE
5
SSE
10
S
5
SE
5
E
5
N
10
NNW
10
N
10
NNW
10
WNW
15
WNW
10
NNW
10
N
10
N
10
N
5
N
5
WSW
15
S
15
S
15
SSE
10
SSE
10
SSE
10
SSE
10
SE
cross-on
on
on
glassy
glassy
glassy
off
off
cross-off
cross-off
cross-off
off
off
off
off
glassy
glassy
on
on
on
on
cross-on
cross-on
cross-on
High Tide
6:10PM1.40m
6:30AM1.31m
7:12PM1.33m
7:37AM1.18m
8:23PM1.28m
Low Tide
11:52AM0.19m
00:24AM0.32m
12:48PM0.30m
1:33AM0.41m
1:52PM0.40m
2:54AM0.46m
clear
clear
clear
clear
clear
part cloud
part cloud
clear
clear
part cloud
clear
clear
clear
clear
cloud
part cloud
part cloud
part cloud
clear
clear
clear
clear
clear
clear
<span class="translation_missing" title="translation missing: en.weather_tables.sunrise">Sunrise</span>
7:33
7:35
7:35
<span class="translation_missing" title="translation missing: en.weather_tables.sunset">Sunset</span>
5:49
5:47
5:47
5:46
Temp °C
18
21
20
19
19
18
17
16
18
20
19
17
16
16
15
16
17
18
17
16
16
16
15
16
17
21
20
20
20
18
16
15
17
19
17
16
15
15
14
16
17
16
16
15
15
15
14
15
Swell 1
Height (m)
Direction
Period (s)
0.4
SSE
11
1.1
SSE
8
1
SSE
8
0.9
SSE
7
0.9
SSE
8
0.6
S
7
0.6
S
7
0.7
SSE
7
0.7
SSE
7
0.6
S
7
0.5
S
7
0.5
S
7
0.5
S
7
0.5
SW
18
0.5
SW
18
0.5
SW
18
0.6
SSW
16
0.8
SSW
6
0.9
SSW
6
0.9
S
6
0.9
SW
15
0.9
SW
14
0.9
SW
14
0.9
SW
14
Energy kJ
49
153
110
86
87
34
32
55
52
37
26
24
23
157
155
152
179
55
70
64
314
305
297
264
Swell 2
Height (m)
Direction
Period (s)
0.4
SW
12
0.5
SSE
11
0.5
SSE
11
0.5
SSE
10
0.4
SSE
10
0.5
SE
8
0.5
SW
13
0.5
SW
13
0.5
SW
13
0.4
SW
12
0.4
SW
12
0.4
SW
12
0.4
SW
12
0.5
S
6
0.5
S
6
0.5
S
6
0.5
SSW
6
0.7
SW
16
0.8
SW
16
0.7
SW
16
0.8
S
6
0.7
S
6
0.6
S
6
0.6
S
6
Energy kJ
50
68
66
62
37
35
88
87
84
53
52
51
50
21
19
17
19
264
306
248
49
36
25
25
Swell 3
Height (m)
Direction
Period (s)
0.1
SW
16
0.4
SW
12
0.4
SW
12
0.4
SW
11
0.3
SSW
14
0.4
SSE
11
0.4
SE
8
0.2
SSE
11
0.2
SSE
11
0.2
SSE
11
0.3
SW
20
0.4
SW
20
0.4
SW
19
0.4
SW
11
0.4
SW
11
0.4
SW
11
0.4
SW
11
0.4
SW
11
0.7
WSW
11
0.4
SW
10
0.2
S
10
0.2
S
9
0.2
S
9
0.1
S
9
Energy kJ
10
50
35
32
41
39
22
12
11
11
60
97
95
45
43
43
42
43
99
27
7
7
7
2
Wind waves
Height (m)
Direction
Period (s)
1.3
SSE
8
2.1
SE
8
1.8
SE
8
1.8
SE
8
0.3
WNW
2
0.4
NW
3
0.4
NW
3
0.3
NNW
3
0.3
NNW
2
0.2
NNW
2
Energy kJ
187
623
448
413
1
2
2
1
1
1
Nearest Offshore or Glassy
Rating
(10 max)
2
3
2
3
1
1
1
1
1
1
1
1
1
2
2
2
2
3
2
2
2
2
2
2
Distance (km)
16
12
22
0
0
0
0
0
0
0
0
0
0
0
0
0
0
27
22
16
16
16
16
16
Best forecast wave conditions in Cape Town
Rating
(10 max)
4
3
4
4
2
2
2
2
1
1
1
2
2
2
2
2
3
3
3
3
3
3
3
3
Best forecast wave conditions in South Africa
Rating
(10 max)
3
3
4
4
4
4
4
4
3
1
3
3
3
3
2
2
3
3
2
2
2
2
2
3
Header Global
Rating
(10 max)
4
4
4
5
5
5
5
5
5
5
5
5
4
5
5
7
7
7
6
5
5
5
5
6
  • 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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