Nine Mile Reef surfForecast / Cape Town / South Africa

information circle16 Day Weather and Surf, issued 1 am Thursday 23 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
18.4° 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 Thursday (Apr 23) at 8AM. The primary swell is predicted to be 2.5m and 14s period. The wind is predicted to be cross-shore as the swell arrives.

The most powerful waves expected at Nine Mile Reef in the next 16 days are 3.5m 13s and forecast to arrive on Tuesday (Apr 28) at 2AM. Winds are predicted to be cross-onshore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 1.0m 4s period and expected on Sunday (Apr 26) at 11AM.

Wave TypeTime (SAST) & Date Wave Height & Period
Next good surf (1 star+) 8AM (Thu 23rd Apr)8ft (2.5m) 14s
Best Surf 8AM (Thu 23rd Apr)8ft (2.5m) 14s
Most Powerful 2AM (Tue 28th Apr)11ft (3.5m) 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

Mostly dry. Warm (max 24°C on Fri afternoon, min 13°C on Thu morning). Wind will be generally light.

Days 4-6 Weather Summary

Heavy rain (total 21mm), heaviest during Sun afternoon. Very mild (max 19°C on Sun morning, min 14°C on Sun night). Mainly fresh winds.

Thursday
23
Friday
24
Saturday
25
Sunday
26
Monday
27
Tuesday
28
Wednesday
29
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
Rating
(10 max)
!
3
3
2
2
1
1
1
1
0
0
0
!
0
!
!
0
!
2
0
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)
2.3
S
14
1.9
S
13
1.4
S
12
1
S
12
0.9
S
11
0.7
SSW
11
0.6
SW
11
0.6
SW
11
0.6
SW
10
0.6
WSW
9
2.5
WSW
8
2.5
SSW
10
2.5
WSW
12
3
SSW
12
3.5
S
13
3
S
13
3
S
13
2.5
S
12
2
S
12
1.9
SSE
11
1.5
SSE
11
Wave Graph
Metric surfscale
Energy kJ
2155
1245
566
266
191
113
76
72
63
58
994
1300
1624
2088
3890
3459
3234
1836
1079
858
531
Wind (km/h)
0
ENE
5
SSW
5
ENE
5
SSW
5
S
0
NW
20
NNW
15
NW
15
N
35
N
20
WSW
20
WSW
20
WSW
20
WSW
15
SSW
20
S
20
SE
20
SE
10
SE
25
SSE
10
ESE
glassy
on
cross-off
glassy
glassy
glassy
off
cross-off
off
off
cross-on
cross-on
cross
cross-on
cross-on
on
cross-on
cross-on
cross-on
on
cross-on
High Tide
8:40PM1.15m
9:22AM1.07m
10:21PM1.17m
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
Low Tide
2:07PM0.47m
3:11AM0.55m
3:47PM0.51m
4:59AM0.51m
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
clear
clear
clear
clear
clear
clear
clear
clear
clear
part cloud
heavy rain
rain showers
cloud
part cloud
part cloud
part cloud
part cloud
clear
clear
clear
clear
<span class="translation_missing" title="translation missing: en.weather_tables.sunrise">Sunrise</span>
7:13
7:13
7:15
7:16
7:16
7:16
7:18
<span class="translation_missing" title="translation missing: en.weather_tables.sunset">Sunset</span>
6:13
6:12
6:10
6:08
6:07
6:07
6:06
16
5
Temp °C
17
20
19
22
24
22
23
24
17
19
15
16
15
16
16
16
16
15
16
18
16
16
17
17
19
21
19
19
20
16
13
13
10
10
11
12
11
11
11
14
16
13
Swell 1
Height (m)
Direction
Period (s)
2.3
S
14
1.9
S
13
1.4
S
12
1
S
12
0.9
S
11
0.7
SSW
11
0.6
SW
11
0.6
SW
11
0.6
SW
10
0.6
WSW
9
1.6
SW
8
2.5
SSW
10
2.5
SSW
11
3
SSW
12
3.5
S
13
3
S
13
3
S
13
2.5
S
12
2
S
12
1.9
SSE
11
1.5
SSE
11
Energy kJ
2155
1245
566
266
191
113
76
72
63
58
346
1244
1604
2088
3890
3459
3234
1836
1079
858
531
Swell 2
Height (m)
Direction
Period (s)
0.9
SE
8
0.6
SE
8
0.4
SSE
10
0.3
SSE
9
0.2
SSE
9
0.2
S
16
0.2
SSW
15
0.2
SSW
15
0.6
SW
13
1.7
WSW
11
1.4
SW
10
0.2
SSW
16
0.3
SW
15
0.7
SSW
16
1
SSW
14
Energy kJ
95
54
32
15
8
21
21
21
113
649
385
25
33
232
389
Swell 3
Height (m)
Direction
Period (s)
0.5
S
11
0.5
S
11
0.1
SE
11
0.1
S
18
0.1
SW
16
0.2
S
15
0.2
S
15
0.1
W
12
0.4
SW
16
0.3
SSW
18
0.4
SW
9
0.4
WSW
13
Energy kJ
61
58
5
6
10
19
17
3
65
62
30
69
Wind waves
Height (m)
Direction
Period (s)
1.4
SE
6
1.4
SE
7
1.4
SE
7
0.5
W
3
0.4
NW
3
1
NNW
4
2.5
WSW
8
2.5
WSW
10
2.5
WSW
12
2.3
WSW
11
1.4
SE
5
1.4
SE
5
Energy kJ
172
163
217
5
3
36
994
1300
1624
1328
106
103
Nearest Offshore or Glassy
Rating
(10 max)
4
4
3
2
2
1
1
1
1
1
1
1
4
4
5
4
4
4
4
4
4
Distance (km)
10
12
0
0
0
0
0
0
0
160
398
398
165
165
31
32
34
22
16
56
12
Best forecast wave conditions in Cape Town
Rating
(10 max)
4
4
4
2
2
2
2
1
2
5
4
4
4
4
Best forecast wave conditions in South Africa
Rating
(10 max)
5
4
4
3
3
3
4
1
4
2
2
3
4
4
7
4
4
9
5
4
4
Header Global
Rating
(10 max)
5
5
5
5
5
9
5
4
4
4
4
6
8
5
7
5
5
9
9
5
8
  • 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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