Nine Mile Reef surfForecast / Cape Town / South Africa

information circle16 Day Weather and Surf, issued 7 pm Wednesday 13 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
17.0° C
(Which is normal for this time of year)

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 (May 14) at 2AM. The primary swell is predicted to be 2.4m and 12s period with a secondary swell of 0.6m 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 2.4m 14s and forecast to arrive on Friday (May 15) at 11AM. Winds are predicted to be onshore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 0.4m 3s period and expected on Thursday (May 14) at 8PM.

Wave TypeTime (SAST) & Date Wave Height & Period
Next good surf (1 star+) 2AM (Thu 14th May)8ft (2.4m) 12s
Best Surf 2AM (Thu 14th May)8ft (2.4m) 12s
Most Powerful11AM (Fri 15th May)8ft (2.4m) 14s

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 20°C on Sat afternoon, min 13°C on Wed night). Wind will be generally light.

Days 5-7 Weather Summary

Mostly dry. Warm (max 21°C on Mon afternoon, min 16°C on Sun night). Wind will be generally light.

Thursday
14
Friday
15
Saturday
16
Sunday
17
Monday
18
Tuesday
19
Wed
20
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Rating
(10 max)
!
!
3
4
!
!
3
3
2
1
0
0
0
0
0
0
0
0
1
2
1
Swell
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Wave
Height (m)
Direction
Period (s)
2.4
SSW
12
2.1
SSW
11
1.7
SSW
11
1.2
S
15
2.4
S
14
2.4
S
14
1.9
S
13
1.6
S
12
1.5
S
12
1
S
12
0.9
S
11
0.8
SW
14
0.8
SW
13
0.8
SW
14
0.8
SW
14
1.5
SE
7
2.1
SE
8
1.3
SSE
8
1
SSE
8
1
SSE
9
1.1
SSE
11
Wave Graph
Metric surfscale
Energy kJ
1517
1064
711
610
2374
2275
1233
787
636
264
189
221
212
238
228
192
494
212
134
161
270
Wind (km/h)
5
N
0
NW
0
WNW
5
N
10
S
20
S
10
SE
10
SE
10
SSE
5
SE
10
S
15
SSE
15
SE
20
SE
20
SE
20
ESE
20
ESE
20
SE
15
ESE
5
SE
10
SSE
glassy
glassy
glassy
off
on
on
cross-on
cross-on
on
cross-on
on
on
cross-on
cross-on
cross-on
cross-on
cross-on
cross-on
cross
glassy
cross-on
High Tide
00:56AM1.52m
1:30PM1.41m
1:40AM1.61m
2:14PM1.49m
2:24AM1.67m
2:57PM1.54m
3:09AM1.68m
3:42PM1.55m
3:55AM1.64m
4:28PM1.53m
4:43AM1.56m
5:17PM1.48m
5:34AM1.44m
6:10PM1.40m
Low Tide
7:22AM0.12m
7:29PM0.22m
8:04AM0.02m
8:13PM0.15m
8:47AM-0.03m
8:59PM0.11m
9:31AM-0.04m
9:45PM0.10m
10:16AM0.00m
10:34PM0.15m
11:02AM0.08m
11:26PM0.22m
11:52AM0.19m
clear
clear
clear
clear
clear
clear
clear
clear
clear
clear
clear
clear
part cloud
cloud
part cloud
part cloud
part cloud
clear
clear
clear
clear
<span class="translation_missing" title="translation missing: en.weather_tables.sunrise">Sunrise</span>
7:28
7:30
7:31
7:31
7:31
7:33
7:33
<span class="translation_missing" title="translation missing: en.weather_tables.sunset">Sunset</span>
5:53
5:52
5:52
5:52
5:51
5:50
5:50
5:49
Temp °C
15
14
18
17
16
17
16
17
20
19
18
20
18
19
21
18
19
21
18
19
21
13
13
17
16
16
15
14
16
19
18
16
18
17
17
19
16
17
19
17
19
21
Swell 1
Height (m)
Direction
Period (s)
2.4
SSW
12
2.1
SSW
11
1.7
SSW
11
1.3
SSW
11
2.4
S
14
2.4
S
14
1.9
S
13
1.6
S
12
1.5
S
12
1
S
12
0.9
S
11
0.8
S
11
0.8
SW
13
0.8
SW
14
0.8
SW
14
0.7
SW
13
1.3
SSE
8
0.6
SW
13
1
SSE
8
1
SSE
9
1.1
SSE
11
Energy kJ
1517
1064
711
404
2374
2275
1233
787
636
264
189
144
212
238
228
176
202
136
134
161
270
Swell 2
Height (m)
Direction
Period (s)
0.6
S
14
0.1
SW
18
0.2
WSW
18
1.2
S
15
0.6
SW
15
0.7
SW
16
1.4
SW
14
1.2
SW
12
1
SW
12
0.8
SW
13
0.4
SW
14
0.8
SW
14
0.5
S
10
0.4
SSE
12
0.3
S
10
0.2
SSE
12
0.6
SW
13
0.1
S
14
0.6
SW
12
0.5
SW
12
0.4
SW
12
Energy kJ
142
13
31
610
188
239
715
437
295
202
73
221
49
50
19
14
140
4
95
69
49
Swell 3
Height (m)
Direction
Period (s)
0.1
W
20
0.2
WSW
18
0.4
SW
18
0.4
SW
16
1.1
WSW
15
1.4
WSW
16
0.4
SW
12
0.5
S
13
0.4
SSE
13
0.3
S
10
0.3
SSE
12
0.2
S
11
0.2
SSE
10
0.4
SSE
12
0.2
SSW
15
Energy kJ
8
31
81
93
559
909
50
81
57
17
30
10
11
54
21
Wind waves
Height (m)
Direction
Period (s)
1
ESE
4
1.3
SE
5
0.7
SSE
6
1
SSE
6
1.4
SSE
6
1.2
SSE
6
1.4
SE
6
1.4
SE
6
1.5
SE
7
2.1
SE
8
1.3
SSE
8
Energy kJ
32
70
29
64
126
114
152
157
192
494
212
Nearest Offshore or Glassy
Rating
(10 max)
4
4
3
4
3
3
4
4
3
2
2
3
2
4
4
1
3
1
2
2
2
Distance (km)
12
10
0
0
21
21
16
16
16
16
16
27
22
31
31
26
16
26
16
0
16
Best forecast wave conditions in Cape Town
Rating
(10 max)
4
4
4
4
5
3
5
4
4
4
3
4
4
4
4
4
4
3
2
2
2
Best forecast wave conditions in South Africa
Rating
(10 max)
5
4
4
4
5
5
5
4
4
4
4
4
3
4
4
4
4
3
3
3
3
Header Global
Rating
(10 max)
9
4
5
4
5
5
5
4
5
4
5
5
7
4
5
5
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)
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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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