Nine Mile Reef surfForecast / Cape Town / South Africa

information circle48hr Weather and Surf, issued 1 am Sunday 10 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
17.7° C
(Which is slightly warmer than usual)

How big are the waves at Nine Mile Reef today?

The current surf forecast for Nine Mile Reef at 8AM is: 0.8m 13s primary swell from a Southwest direction and 0.6m 12s secondary swell from a South-southeast direction (forecast issued at 01:00am May 10). An open ocean swell of 1.3m 5s is not directed at the surf break. The wind direction is predicted to be cross-offshore.

Time (SAST) & DateWave HeightWave Period
Morning (10 May)2.5ft (0.8m)13s
Afternoon (10 May)7ft (2.1m)12s
Evening (10 May)10ft (3.0m)10s

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


Updates in  hr  min  s Forecast update imminent

Short Range Forecast

Heavy rain (total 79mm), heaviest during Mon morning. Very mild (max 18°C on Mon afternoon, min 13°C on Sun afternoon). Winds decreasing (gales from the NNW on Mon morning, light winds from the NW by Tue morning).

Sunday
10
Monday
11
Tuesday
12
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
5 PM
8 PM
11 PM
Rating
(10 max)
0
1
1
1
0
0
0
!
!
!
0
0
0
0
!
!
!
!
!
!
!
!
!
!
Swell
Height Map
Height MapHeight MapHeight Map
Height MapHeight MapHeight Map
Height MapHeight MapHeight Map
Wave
Height (m)
Direction
Period (s)
0.8
SW
13
0.8
SW
13
0.8
SW
13
1.6
WSW
8
2.1
WSW
12
2.5
WSW
8
3
WSW
10
3
SW
12
5
WSW
12
2.3
SW
12
1.8
SW
12
0.5
S
10
4.5
WSW
13
4
WSW
14
3.5
SW
13
6
WSW
13
6
WSW
13
3
SW
13
3.5
SW
13
3
SSW
13
2.5
SW
12
2.4
SW
12
2.4
SW
12
2.5
SW
12
Wave Graph
Metric surfscale
Energy kJ
212
208
202
326
1332
870
1958
2412
6610
1565
1009
46
7017
6231
3725
12686
11098
2843
3741
3100
2218
1679
1652
1771
Wind (km/h)
40
N
25
NNW
25
W
35
WNW
50
W
45
W
35
W
30
W
25
NW
45
N
65
NNW
60
NW
55
WNW
50
WNW
40
WNW
35
NW
40
NW
45
WNW
10
NW
40
NW
20
W
20
WNW
15
NW
15
WNW
off
cross-off
cross-off
cross-off
cross
cross
cross
cross
cross-off
off
off
cross-off
cross-off
cross-off
cross-off
cross-off
cross-off
cross-off
cross-off
cross-off
cross
cross-off
cross-off
cross-off
High Tide
9:35AM1.02m
10:24PM1.17m
10:55AM1.08m
11:22PM1.28m
11:55AM1.19m
Low Tide
3:33AM0.62m
3:46PM0.54m
4:54AM0.53m
4:58PM0.49m
5:52AM0.40m
5:54PM0.40m
light rain
mod rain
rain showers
light rain
rain showers
light rain
light rain
rain showers
light rain
light rain
mod rain
mod rain
mod rain
light rain
light rain
light rain
light rain
light rain
mod rain
light rain
light rain
rain showers
rain showers
rain showers
<span class="translation_missing" title="translation missing: en.weather_tables.sunrise">Sunrise</span>
7:26
7:26
7:28
<span class="translation_missing" title="translation missing: en.weather_tables.sunset">Sunset</span>
5:55
5:54
5:53
1
10
3
2
7
3
3
2
1
1
9
10
7
4
2
1
1
5
6
5
4
1
1
1
Temp °C
14
13
14
14
13
13
14
13
13
13
13
17
18
18
17
17
17
18
16
18
17
17
16
16
6
9
9
7
3
3
6
6
7
4
1
7
9
10
11
12
11
12
15
13
15
14
14
14
Swell 1
Height (m)
Direction
Period (s)
0.8
SW
13
0.8
SW
13
0.8
SW
13
0.9
SW
13
0.5
SE
11
0.4
SE
11
0.4
SE
11
0.3
SE
11
3
SW
12
2.3
SW
12
1.8
SW
12
0.5
S
10
0.4
SSE
10
0.4
SSE
10
3.5
SW
13
3.5
SW
13
3
SW
13
3
SW
13
3
SW
13
2.5
SW
13
2.5
SW
12
2.4
SW
12
2.4
SW
12
2.5
SW
12
Energy kJ
212
208
202
265
64
31
31
19
2180
1565
1009
46
30
31
3725
4045
3502
2843
2757
2239
2218
1679
1652
1771
Swell 2
Height (m)
Direction
Period (s)
0.7
SE
12
0.6
SSE
12
0.6
SSE
12
0.5
SE
12
0.1
SW
22
0.1
S
15
0.1
SE
15
0.1
SE
14
0.3
SE
11
0.2
SSE
10
0.6
S
9
0.4
SE
12
3.5
SW
13
3
SSW
13
Energy kJ
147
94
93
66
19
4
8
8
18
11
53
55
3741
3100
Swell 3
Height (m)
Direction
Period (s)
0.2
NNE
6
0.1
SE
14
0.2
SSE
14
0.2
SSE
13
Energy kJ
3
8
18
17
Wind waves
Height (m)
Direction
Period (s)
1.1
N
4
1.4
NW
5
1.3
W
5
1.6
WSW
8
2.1
WSW
12
2.5
WSW
8
3
WSW
10
3
SW
12
5
WSW
12
1.2
NW
5
3
NW
7
4.5
W
12
4.5
WSW
13
4
WSW
14
1.8
W
6
6
WSW
13
6
WSW
13
1
WNW
5
1.2
W
5
3.5
W
12
1.1
W
5
0.8
W
4
3
W
12
Energy kJ
47
90
74
326
1332
870
1958
2412
6610
62
834
5497
7017
6231
267
12686
11098
47
67
3456
51
26
2524
Nearest Offshore or Glassy
Rating
(10 max)
3
4
3
3
3
4
4
5
5
1
1
4
4
3
3
9
5
9
4
6
4
4
4
4
Distance (km)
68
319
340
359
320
358
577
976
976
340
340
868
987
987
998
358
320
578
18
320
10
20
10
10
Best forecast wave conditions in Cape Town
Rating
(10 max)
6
4
4
4
4
Best forecast wave conditions in South Africa
Rating
(10 max)
4
4
4
4
3
4
4
3
2
3
4
4
4
3
3
9
6
9
6
9
9
5
4
4
Header Global
Rating
(10 max)
4
4
4
5
9
9
8
6
9
5
5
4
5
4
8
9
6
9
9
9
9
9
9
9
  • 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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