Nine Mile Reef surfForecast / Cape Town / South Africa

information circle16 Day Weather and Surf, issued 1 am Thursday 07 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
17.9° 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 Friday (May 08) at 11PM. The primary swell is predicted to be 1.2m and 15s period with a secondary swell of 1.1m and 14s. The wind is predicted to be glassy as the swell arrives.

The most powerful waves expected at Nine Mile Reef in the next 16 days are 4.5m 11s and forecast to arrive on Sunday (May 10) at 8PM. Winds are predicted to be cross-offshore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 3.0m 6s period and expected on Sunday (May 10) at 5AM.

Wave TypeTime (SAST) & Date Wave Height & Period
Next good surf (1 star+)11PM (Fri 8th May)4ft (1.2m) 15s
Best Surf11AM (Sun 10th May)10ft (3.0m) 11s
Most Powerful 8PM (Sun 10th May)15ft (4.5m) 11s

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

Moderate rain (total 14mm), heaviest on Sat night. Very mild (max 19°C on Sat afternoon, min 13°C on Sat morning). Winds increasing (calm on Fri night, near gales from the NW by Sat night).

Days 4-6 Weather Summary

Heavy rain (total 70mm), heaviest during Mon afternoon. Very mild (max 17°C on Tue afternoon, min 12°C on Sun morning). Winds decreasing (strong winds from the W on Sun afternoon, light winds from the NW by Tue night).

Thursday
7
Friday
8
Saturday
9
Sunday
10
Monday
11
Tuesday
12
Wednesday
13
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
Rating
(10 max)
0
0
1
2
0
4
4
1
0
!
!
1
!
1
3
!
!
!
!
2
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)
1.1
SSE
10
1.4
S
8
1.3
SSE
10
1.1
SW
16
1.1
SW
15
1.2
SSE
14
1
SW
14
0.9
SSE
13
0.8
SW
13
3
WSW
11
3
WSW
11
2
SW
10
2.3
WSW
10
2
SW
13
2
SW
13
2.2
SW
12
2.3
SW
12
2.5
SSW
12
2.4
SSW
12
2
SSW
12
1.4
SW
11
Wave Graph
Metric surfscale
Energy kJ
231
277
328
574
505
594
404
273
212
2504
2069
865
1140
1266
1259
1439
1547
1722
1677
1069
485
Wind (km/h)
15
SE
20
SSE
10
SE
10
SE
15
S
5
NE
15
NNW
25
NW
50
N
40
WNW
30
W
40
WNW
25
NNW
25
W
25
WNW
25
WNW
20
W
10
WNW
5
NW
10
S
5
SSE
cross-on
on
cross-on
cross-on
on
glassy
off
cross-off
off
cross-off
cross-off
cross-off
off
cross
cross-off
cross-off
cross
cross-off
glassy
on
glassy
High Tide
6:43PM1.13m
6:49AM1.09m
7:48PM1.09m
8:02AM1.02m
9:09PM1.10m
9:35AM1.02m
10:24PM1.17m
10:55AM1.08m
11:22PM1.28m
11:55AM1.19m
00:11AM1.40m
12:45PM1.30m
00:56AM1.52m
Low Tide
12:17PM0.44m
00:44AM0.58m
1:09PM0.51m
1:57AM0.63m
2:22PM0.55m
3:33AM0.62m
3:46PM0.54m
4:54AM0.53m
4:58PM0.49m
5:52AM0.40m
5:54PM0.40m
6:39AM0.25m
6:43PM0.31m
clear
clear
part cloud
part cloud
clear
clear
clear
part cloud
rain showers
mod rain
mod rain
mod rain
light rain
heavy rain
mod rain
light rain
part cloud
part cloud
clear
clear
part cloud
<span class="translation_missing" title="translation missing: en.weather_tables.sunrise">Sunrise</span>
7:24
7:24
7:24
7:26
7:26
7:28
7:28
<span class="translation_missing" title="translation missing: en.weather_tables.sunset">Sunset</span>
5:59
5:58
5:57
5:55
5:54
5:53
5:53
14
6
6
9
5
36
7
1
Temp °C
17
18
16
16
18
16
16
19
15
12
14
14
14
14
15
16
17
16
16
17
15
14
14
13
14
15
14
13
14
9
6
5
6
8
8
9
11
11
13
15
16
14
Swell 1
Height (m)
Direction
Period (s)
1.1
SSE
10
0.8
SSE
12
1.3
SSE
10
1.1
SW
16
1.1
SW
15
1.2
SSE
14
1
SSE
13
0.9
SSE
13
0.8
SW
13
0.5
SE
11
0.4
SE
11
2
SW
10
1
SW
13
2
SW
13
2
SW
13
2.2
SW
12
2.3
SW
12
2.5
SSW
12
2.4
SSW
12
2
SSW
12
1.4
SW
11
Energy kJ
231
199
328
574
505
594
368
257
212
64
33
865
352
1266
1259
1439
1547
1722
1677
1069
485
Swell 2
Height (m)
Direction
Period (s)
1
S
8
0.6
SW
13
0.7
SE
13
1
S
8
0.7
SE
13
1
SW
14
0.9
SW
14
0.8
SW
14
0.7
SE
12
0.1
S
15
0.9
S
10
0.7
S
9
0.7
S
9
0.6
S
9
0.5
S
9
0.9
WNW
10
1.1
W
11
1.4
W
10
0.6
S
9
Energy kJ
144
113
170
144
170
404
346
273
147
4
161
81
78
60
42
166
274
426
63
Swell 3
Height (m)
Direction
Period (s)
0.7
SE
13
0.3
SW
20
0.6
SW
13
0.9
SE
13
0.4
SSE
16
0.6
SSE
15
1
SW
14
0.4
SE
11
0.3
SE
13
Energy kJ
172
60
136
241
89
146
404
42
27
Wind waves
Height (m)
Direction
Period (s)
1.4
S
8
1
SSE
9
0.4
NW
3
1.2
N
4
3
WSW
11
3
WSW
11
1.9
WNW
6
2.3
WSW
10
1.3
WNW
5
0.6
WNW
4
1.1
WNW
5
1.2
WNW
5
Energy kJ
277
162
2
59
2504
2069
236
1140
93
10
54
64
Nearest Offshore or Glassy
Rating
(10 max)
3
4
3
3
3
4
4
3
3
2
2
1
2
3
2
3
4
4
4
2
3
Distance (km)
16
29
16
16
16
0
0
18
90
746
914
574
300
160
300
1002
165
18
12
21
0
Best forecast wave conditions in Cape Town
Rating
(10 max)
4
4
4
4
5
4
4
3
4
4
4
4
Best forecast wave conditions in South Africa
Rating
(10 max)
4
5
7
4
6
6
5
4
4
3
2
3
3
4
3
3
4
9
4
4
4
Header Global
Rating
(10 max)
5
5
7
6
6
6
5
5
5
5
4
6
9
5
5
4
5
9
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)
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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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