Nine Mile Reef surfForecast / Cape Town / South Africa

information circle48hr Weather and Surf, issued 7 pm Saturday 16 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
16.6° 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 1AM is: 1.2m 12s primary swell from a South direction and 0.9m 13s secondary swell from a Southwest direction, 0.6m 4s secondary swell from a Southeast direction (forecast issued at 07:00pm May 16). The wind direction is predicted to be cross-onshore.

Time (SAST) & DateWave HeightWave Period
Morning (17 May)3.5ft (1.0m)11s
Afternoon (17 May)2.5ft (0.8m)15s
Evening (17 May)2.5ft (0.8m)13s

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 20°C on Mon afternoon, min 15°C on Sun morning). Winds increasing (light winds from the SSE on Sat night, fresh winds from the SE by Tue morning).

Sat
16
Sunday
17
Monday
18
Tue
19
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)
2
2
2
2
2
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
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)
1.4
S
12
1.4
S
12
1.3
S
12
1.2
S
12
1.1
S
11
1
S
11
1
S
11
0.8
WSW
15
0.8
SW
14
0.8
SW
14
0.9
SW
13
0.8
SW
13
0.9
SW
13
0.9
SW
14
1
SW
14
1
SW
14
0.9
SW
14
1.9
SSE
8
2.1
SSE
8
2.1
SSE
8
2.2
SSE
8
2.5
SSE
8
2.5
SSE
8
2.5
SSE
8
Wave Graph
Metric surfscale
Energy kJ
547
547
464
383
289
233
229
272
228
218
257
205
299
327
404
398
308
522
588
606
597
778
898
861
Wind (km/h)
5
S
5
SSE
5
SSE
10
SSE
10
SSE
10
SSE
20
SSE
25
S
20
SSE
20
SE
20
SSE
15
SE
15
SE
20
SE
25
SE
25
SE
30
SE
25
SE
25
SE
30
SE
35
SE
40
SE
30
SE
25
SE
on
cross-on
cross-on
on
on
on
on
on
on
cross-on
cross-on
cross-on
cross-on
cross-on
cross-on
cross-on
cross-on
cross-on
cross-on
cross-on
cross-on
cross-on
cross-on
cross-on
High Tide
2:57PM1.54m
3:09AM1.68m
3:42PM1.55m
3:55AM1.64m
4:28PM1.53m
4:43AM1.56m
Low Tide
8:59PM0.11m
9:31AM-0.04m
9:45PM0.10m
10:16AM0.00m
10:34PM0.15m
11:02AM0.08m
clear
clear
clear
clear
clear
clear
clear
clear
clear
clear
part cloud
clear
clear
clear
part cloud
clear
clear
cloud
part cloud
clear
part cloud
part cloud
cloud
cloud
<span class="translation_missing" title="translation missing: en.weather_tables.sunrise">Sunrise</span>
7:31
7:31
7:33
<span class="translation_missing" title="translation missing: en.weather_tables.sunset">Sunset</span>
5:52
5:51
5:50
5:50
Temp °C
19
19
18
17
16
15
17
18
17
17
16
15
15
15
18
20
19
17
17
17
17
17
17
18
18
19
17
16
15
13
14
14
14
15
14
13
13
12
14
16
15
13
13
12
12
11
12
15
Swell 1
Height (m)
Direction
Period (s)
1.4
S
12
1.4
S
12
1.3
S
12
1.2
S
12
1.1
S
11
1
S
11
1
S
11
0.9
S
11
0.8
S
11
0.8
SW
14
0.9
SW
13
0.8
SW
13
0.9
SW
13
0.9
SW
14
1
SW
14
1
SW
14
0.9
SW
14
0.8
SW
13
0.8
SW
13
0.8
SW
13
0.8
SW
13
0.7
SW
13
0.7
SW
13
0.6
SW
13
Energy kJ
547
547
464
383
289
233
229
185
146
218
257
205
299
327
404
398
308
246
235
228
246
171
168
136
Swell 2
Height (m)
Direction
Period (s)
1.1
SW
12
0.8
SW
11
0.9
SW
13
0.8
SW
13
0.8
SW
13
0.6
SW
13
0.5
SW
12
0.8
SW
14
0.8
SW
14
0.8
S
10
0.8
S
10
0.6
S
10
0.5
S
10
0.5
S
10
0.4
S
10
0.7
S
13
0.9
SSW
9
0.1
S
18
0.2
S
12
0.1
S
17
0.1
S
16
0.2
SSE
16
0.2
SSE
15
Energy kJ
346
150
245
202
199
134
72
241
228
138
130
71
49
50
31
161
111
6
11
6
5
24
22
Swell 3
Height (m)
Direction
Period (s)
0.6
SW
14
0.5
SW
10
0.4
WSW
10
0.8
WSW
15
0.5
S
13
0.5
S
14
0.4
SW
16
0.4
SSE
13
0.4
SSE
13
0.4
SSE
13
0.6
SSW
15
0.1
S
18
0.1
S
16
Energy kJ
114
45
37
272
85
93
90
59
55
55
144
6
5
Wind waves
Height (m)
Direction
Period (s)
0.9
SE
4
0.9
SE
5
0.6
SE
4
0.6
SE
4
0.6
SSE
4
0.7
SSE
4
0.9
SSE
4
1.1
SSE
4
1
SSE
5
1
SSE
4
1
SSE
5
0.9
SSE
6
1
SSE
6
0.9
SSE
5
1.3
SSE
5
1.5
SSE
5
1.9
SSE
8
2.1
SSE
8
2.1
SSE
8
2.2
SSE
8
2.5
SSE
8
2.5
SSE
8
2.5
SSE
8
Energy kJ
29
35
12
12
8
12
23
44
44
42
40
55
58
46
73
125
522
588
606
597
778
898
861
Nearest Offshore or Glassy
Rating
(10 max)
3
3
3
3
2
2
3
4
2
2
2
2
2
2
3
3
3
4
3
4
4
5
5
3
Distance (km)
16
12
12
16
16
16
29
165
56
22
22
22
22
22
36
36
36
36
36
165
165
165
165
36
Best forecast wave conditions in Cape Town
Rating
(10 max)
4
4
4
4
4
3
3
3
3
3
4
3
4
4
3
4
3
3
Best forecast wave conditions in South Africa
Rating
(10 max)
4
4
4
4
3
3
4
4
3
3
3
3
3
3
4
4
4
4
4
4
4
5
5
5
Header Global
Rating
(10 max)
5
6
5
4
4
4
6
9
9
7
4
4
5
7
5
4
5
4
4
4
4
5
5
5
  • 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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