Nine Mile Reef surfForecast / Cape Town / South Africa

information circle16 Day Weather and Surf, issued 7 am Saturday 25 Apr 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
18.3° C
(Which is slightly warmer than usual)

Best Forecast Surf Conditions for Nine Mile Reef this week:

The surf forecast for Nine Mile Reef over the next 16 days: The first swell (rated 1 star or higher) is forecast to arrive on Saturday (Apr 25) at 8PM. The primary swell is predicted to be 0.6m and 10s period with a secondary swell of 0.2m and 8s. The wind is predicted to be offshore as the swell arrives.

The most powerful waves expected at Nine Mile Reef in the next 16 days are 2.5m 13s and forecast to arrive on Tuesday (Apr 28) at 2PM. Winds are predicted to be cross-onshore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 0.9m 4s period and expected on Sunday (Apr 26) at 11AM.

Wave TypeTime (SAST) & Date Wave Height & Period
Next good surf (1 star+) 8PM (Sat 25th Apr)2ft (0.6m) 10s
Best Surf 5AM (Mon 27th Apr)10ft (3.0m) 11s
Most Powerful 2PM (Tue 28th Apr)8ft (2.5m) 13s

Table - best surf conditions forecast for Nine Mile Reef over the next 16 days.


Updates in  hr  min  s Forecast update imminent

Short Range Forecast

Heavy rain (total 22mm), heaviest during Sun afternoon. Warm (max 21°C on Sat morning, min 14°C on Sun afternoon). Winds decreasing (fresh winds from the SSW on Sun night, light winds from the SSE by Mon night).

Days 4-6 Weather Summary

Mostly dry. Very mild (max 18°C on Wed afternoon, min 13°C on Tue night). Wind will be generally light.

Saturday
25
Sunday
26
Monday
27
Tuesday
28
Wednesday
29
Thursday
30
Friday
1
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
Rating
(10 max)
1
0
1
0
0
0
1
!
!
!
0
!
2
0
0
0
2
!
4
4
3
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>
Wave
Height (m)
Direction
Period (s)
0.6
SW
11
0.6
SW
11
0.5
SW
10
0.8
SW
9
0.9
SW
8
3.5
SW
10
1.7
S
11
2.2
SSW
10
2.2
S
11
2.5
S
13
2.5
S
13
2.2
S
12
1.7
S
11
1.8
SSE
11
1.3
SSE
10
1
SSW
12
1.8
SSW
14
2.1
SSW
14
1.8
SSW
13
1.7
SSW
12
1.5
SSW
12
Wave Graph
Metric surfscale
Energy kJ
76
72
49
95
109
2132
669
973
1122
2175
2172
1347
695
705
363
314
1303
1680
1120
820
579
Wind (km/h)
25
NNW
20
NW
20
N
20
NW
20
NW
25
SW
20
SSW
15
SSW
10
SSE
20
SE
25
SSE
15
ESE
10
SSE
25
SSE
15
SSE
15
SSE
10
S
5
ESE
5
NNW
5
W
5
N
off
cross-off
off
cross-off
cross-off
cross-on
cross-on
on
cross-on
cross-on
cross-on
cross
on
on
cross-on
on
on
cross
glassy
glassy
off
High Tide
11:03AM1.09m
11:38PM1.26m
12:12PM1.17m
00:31AM1.35m
1:00PM1.25m
1:11AM1.43m
1:39PM1.32m
1:46AM1.49m
2:12PM1.38m
2:17AM1.52m
2:42PM1.42m
2:47AM1.53m
3:12PM1.43m
3:17AM1.51m
Low Tide
5:16PM0.48m
6:10AM0.41m
6:17PM0.41m
6:59AM0.30m
7:02PM0.34m
7:37AM0.22m
7:40PM0.28m
8:09AM0.16m
8:13PM0.25m
8:39AM0.12m
8:44PM0.23m
9:07AM0.11m
9:13PM0.23m
clear
clear
clear
light rain
mod rain
rain showers
part cloud
rain showers
clear
clear
clear
part cloud
part cloud
part cloud
clear
part cloud
cloud
clear
clear
clear
clear
<span class="translation_missing" title="translation missing: en.weather_tables.sunrise">Sunrise</span>
7:15
7:16
7:16
7:16
7:18
7:18
7:18
<span class="translation_missing" title="translation missing: en.weather_tables.sunset">Sunset</span>
6:10
6:08
6:07
6:07
6:06
6:05
6:04
3
10
8
1
Temp °C
21
21
16
16
16
14
15
15
15
16
17
15
16
18
16
17
17
16
17
20
17
17
17
15
12
12
8
10
10
12
11
11
11
13
14
12
14
13
14
16
17
16
Swell 1
Height (m)
Direction
Period (s)
0.6
SW
11
0.6
SW
11
0.5
SW
10
0.8
SW
9
0.9
SW
8
2.1
SSW
10
1.7
S
11
2.2
SSW
10
2.2
S
11
2.5
S
13
2.5
S
13
2.2
S
12
1.7
S
11
0.7
SW
9
1.3
SSE
10
1
SSW
12
1.8
SSW
14
2.1
SSW
14
1.8
SSW
13
1.7
SSW
12
1.5
SSW
12
Energy kJ
76
72
49
95
109
850
669
973
1122
2175
2172
1347
695
90
363
314
1303
1680
1120
820
579
Swell 2
Height (m)
Direction
Period (s)
0.3
SSE
9
0.2
SSE
9
0.3
WSW
5
0.3
SW
15
0.3
SW
15
0.4
SW
14
1.2
SW
10
0.6
SW
12
1.6
SW
10
1.4
SW
10
1.3
SW
10
1.1
SW
10
0.6
SW
10
0.5
SW
13
0.7
SW
13
0.9
SSE
10
0.6
SSE
11
0.3
SSE
10
1.6
SW
12
1.3
WSW
12
0.1
SW
21
Energy kJ
15
8
5
34
33
47
273
89
490
370
328
222
60
80
175
173
90
20
760
472
18
Swell 3
Height (m)
Direction
Period (s)
0.1
S
18
0.2
S
16
0.2
S
16
0.2
S
15
0.8
SW
12
0.3
SW
16
0.4
SW
16
0.4
SW
14
0.2
SSW
17
0.5
SW
9
0.2
S
10
0.5
SE
10
0.7
SSE
7
0.6
SSE
7
Energy kJ
6
21
19
17
197
41
64
52
29
39
7
50
48
37
Wind waves
Height (m)
Direction
Period (s)
0.4
NNW
3
0.7
WNW
4
0.6
NW
3
0.9
NW
4
0.8
WNW
4
3.5
SW
10
1.7
WSW
10
0.8
SSE
4
1
ESE
4
1.8
SSE
11
Energy kJ
3
12
9
23
18
2132
551
16
34
705
Nearest Offshore or Glassy
Rating
(10 max)
1
1
1
1
1
2
4
4
4
4
4
4
3
4
3
2
2
4
4
4
3
Distance (km)
0
18
0
18
434
1031
165
36
16
16
165
12
16
358
16
16
21
12
0
0
0
Best forecast wave conditions in Cape Town
Rating
(10 max)
1
1
2
2
4
4
4
4
4
3
3
4
4
4
4
3
Best forecast wave conditions in South Africa
Rating
(10 max)
2
2
3
2
3
3
4
4
4
4
5
5
4
4
4
3
4
5
4
4
4
Header Global
Rating
(10 max)
5
4
6
7
8
8
6
6
5
5
7
7
5
8
6
5
4
5
5
5
4
  • Map Icons:
  • Break
  • Live Wave Height (m)
  • Live Wind Speed (km/h)
  • Surf Rating (10 Max)
  • Ocean Swells (m)
  • Wind Speed (km/h)
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Information about the Nine Mile Reef Surf forecast

The above surf forecast table for Nine Mile Reef provides essential information for determining whether the surfing conditions will be good over the next 16 days. A general guide to surfing at Nine Mile Reef can be found by selecting the local surf guide option on the grey menu. Our Nine Mile Reef surf forecast is unique since it includes wave energy (power) that defines the real feel of the surf rather than just the height or the period. If you surf the same spot (Nine Mile Reef) regularly then make a mental note of the wave energy from the surf forecast table each time you go. Very soon you may start to choose your surf days based on the wave energy alone combined with our forecast of favourable offshore wind conditions. Our star ratings will help here and of course you will also find the usual wave height and period predictions on our surf forecasts as well as a full break down of the swell components under our advanced users option (to reveal that, click the little Einstein character under the tide times).

Further information to help with frequently asked questions about our surf forecast for Nine Mile Reef may be found under the help tab on the top menu and also by moving your mouse over the question marks on the surf forecast table itself. Please always bear in mind that the forecast is for near-shore open water and local factors at each surf break influence the actual breaking wave height, such as the beach / reef profile, water depths offshore and shelter.

Nine Mile Reef is 19 km (12 miles) from the very large city of Bellville. If you plan a holiday in Cape Town, look for hotels and other accommodation in Bellville. Bellville has rooms for a wide range of budgets as well as cheap car hire and transport links.

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