Nine Mile Reef Surf Break

Lat Long: 34.07° S 18.66° E

Nine Mile Reef Surf Forecast and Surf Report

Issued: 7 pm 16 Sep 2026 (local time)

Forecast update in  hr  min

Today's Nine Mile Reef sea temperature is
14.0°C
1.6° 

Nine Mile Reef surf forecast is for near shore open water. Breaking waves will often be smaller at less exposed spots.


Nine Mile Reef surf forecast from 16 Sep 2026:

  • Best quality surf: Wednesday 23 Sep, 2PM (local time) - 7ft (2.1m), 12s period, SSW swell with cross-onshore winds.
  • Most powerful swell: Wednesday 23 Sep, 2PM (local time) - 7ft (2.1m), 12s period, SSW swell with 1,299 kJ wave energy.
  • Next surfable swell (1★+): Sunday 20 Sep, 11AM (local time) - 4ft (1.2m), 13s period with SW swell.

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 Sunday (Sep 20) at 11AM. The primary swell is predicted to be 1.2m and 13s period with a secondary swell of 0.7m and 5s. 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 2.1m 12s and forecast to arrive on Wednesday (Sep 23) 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 0.8m 12s period and expected on Thursday (Sep 17) at 5AM.

Wave TypeTime (SAST) & Date Wave Height & Period
Next good surf (1 star+)11AM (Sun 20th Sep)4ft (1.2m) 13s
Best Surf 2PM (Wed 23rd Sep)7ft (2.1m) 12s
Most Powerful 2PM (Wed 23rd Sep)7ft (2.1m) 12s

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


Short Range Forecast

Mostly dry. Warm (max 22°C on Sat afternoon, min 12°C on Thu night). Winds decreasing (strong winds from the SE on Thu afternoon, light winds from the ESE by Sat morning).

Days 5-7 Weather Summary

Light rain (total 4mm), mostly falling on Tue afternoon. Warm (max 27°C on Mon afternoon, min 15°C on Sat night). Wind will be generally light.

Thursday
17
Friday
18
Saturday
19
Sunday
20
Monday
21
Tuesday
22
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
Rating
(10 max)
0
0
0
0
0
0
0
0
0
1
3
1
2
1
1
2
0
1
1
Swell
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Wave
Height (m)
Direction
Period (s)
1.4
SW
13
1.4
SW
12
1.2
SW
12
1.1
SW
11
1.1
SW
11
1.1
SW
13
1
SW
12
0.8
SW
12
1
SW
14
1.4
SW
14
1.2
SW
13
1
SW
13
0.8
SW
12
0.7
SW
12
0.7
SW
12
0.9
SW
11
0.7
SW
10
0.5
SW
12
0.9
SW
7
Wave Graph
Metric surfscale
Energy kJ
594
514
400
298
288
437
306
169
407
788
495
320
210
139
132
172
108
65
73
Wind (km/h)
30
SE
35
SE
40
SE
25
SE
30
ESE
35
SE
15
ESE
15
ESE
20
SE
15
SE
5
S
10
S
5
SSE
0
NNW
5
SSE
10
N
25
NNW
15
WNW
0
N
Wind State
cross-on
cross-on
cross-on
cross-on
cross-on
cross-on
cross-on
cross-on
cross-on
cross-on
glassy
on
glassy
glassy
glassy
off
cross-off
cross-off
glassy
High Tide
6:21AM1.14m
6:33PM1.14m
7:05AM1.02m
7:25PM1.02m
8:41AM0.92m
9:33PM0.94m
11:23AM0.96m
11:40PM1.00m
12:28PM1.08m
00:35AM1.11m
1:03PM1.22m
1:12AM1.23m
Low Tide
00:13AM0.41m
12:17PM0.51m
00:51AM0.54m
12:59PM0.64m
1:58AM0.65m
2:48PM0.74m
4:47AM0.67m
5:47PM0.69m
6:13AM0.57m
6:43PM0.57m
6:53AM0.45m
7:17PM0.44m
clear
clear
clear
clear
clear
clear
clear
clear
clear
clear
clear
clear
clear
clear
part cloud
rain showers
part cloud
light rain
clear
<span class="translation_missing" title="translation missing: en.weather_tables.sunrise">Sunrise</span>
6:41
6:41
6:39
6:37
6:37
6:35
<span class="translation_missing" title="translation missing: en.weather_tables.sunset">Sunset</span>
6:37
6:37
6:37
6:38
6:38
6:39
6:40
 mm
1
3
Temp °C
14
16
17
14
16
20
14
18
22
17
23
26
22
26
27
24
17
17
15
Feels °C
7
8
9
7
9
13
8
16
19
14
23
25
22
28
27
25
14
15
13
  • Map Icons:
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  • 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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