Nine Mile Reef Surf Break

Lat Long: 34.07° S 18.66° E

Nine Mile Reef Surf Forecast and Surf Report

Issued: 7 am 20 Sep 2026 (local time)

Forecast update in  hr  min

Today's Nine Mile Reef sea temperature is
13.2°C
2.4° 

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 20 Sep 2026:

  • Best quality surf: Saturday 26 Sep, 8AM (local time) - 5ft (1.5m), 15s period, SSW swell with offshore winds.
  • Most powerful swell: Saturday 26 Sep, 11AM (local time) - 5ft (1.6m), 15s period, SSW swell with 1,132 kJ wave energy.
  • Next surfable swell (1★+): Tuesday 22 Sep, 2AM (local time) - 4ft (1.2m), 6s period with ESE 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 Tuesday (Sep 22) at 2AM. The primary swell is predicted to be 0.5m and 14s period with a secondary swell of 0.6m and 11s. Another secondary swell of 0.5m and 6s is also forecast. Another secondary swell of 1.2m and 6s is also forecast. 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 1.6m 15s and forecast to arrive on Saturday (Sep 26) at 11AM. Winds are predicted to be cross-offshore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 0.4m 3s period and expected on Tuesday (Sep 22) at 2PM.

Wave TypeTime (SAST) & Date Wave Height & Period
Next good surf (1 star+) 2AM (Tue 22nd Sep)4ft (1.2m) 6s
Best Surf 8AM (Sat 26th Sep)5ft (1.5m) 15s
Most Powerful11AM (Sat 26th Sep)5ft (1.6m) 15s

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


Short Range Forecast

Mostly dry. Warm (max 29°C on Tue morning, min 16°C on Tue night). Wind will be generally light.

Days 4-6 Weather Summary

Mostly dry. Warm (max 25°C on Fri afternoon, min 15°C on Wed night). Wind will be generally light.

Sunday
20
Monday
21
Tuesday
22
Wednesday
23
Thursday
24
Friday
25
Saturday
26
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
Rating
(10 max)
2
0
1
1
1
2
2
2
2
0
0
0
0
0
1
1
0
3
4
3
2
Swell
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Wave
Height (m)
Direction
Period (s)
1.2
SW
13
1
SW
13
0.8
SW
12
0.8
SW
12
0.7
SW
12
1.2
ESE
6
0.9
SW
13
0.9
SSW
12
0.9
SW
11
1
SSW
7
1.7
SSE
5
1.7
SSE
6
0.7
S
16
1.5
SSW
14
1.4
SSW
12
1.3
SSW
12
1.2
SSW
12
1
SSW
12
1.6
SSW
15
1.5
SW
14
1.1
SW
14
Wave Graph
Metric surfscale
Energy kJ
495
320
210
169
130
115
245
222
172
96
161
238
236
815
575
437
392
299
1132
902
478
Wind (km/h)
10
S
15
S
10
SE
10
SE
10
SSE
5
E
15
NNW
0
SE
10
NW
5
SW
15
S
20
SSE
20
SE
20
SSE
15
ESE
10
SE
15
SSE
10
NE
10
WNW
10
WNW
5
SW
Wind State
on
on
cross-on
cross-on
on
glassy
off
glassy
cross-off
cross-on
on
cross-on
cross-on
on
cross-on
cross-on
on
cross-off
cross-off
cross-off
cross-on
High Tide
11:23AM0.96m
11:40PM1.00m
12:28PM1.08m
00:35AM1.11m
1:03PM1.22m
1:12AM1.23m
1:33PM1.36m
1:44AM1.34m
2:01PM1.48m
2:15AM1.44m
2:29PM1.59m
2:46AM1.52m
2:59PM1.67m
3:18AM1.56m
Low Tide
5:47PM0.69m
6:13AM0.57m
6:43PM0.57m
6:53AM0.45m
7:17PM0.44m
7:24AM0.33m
7:47PM0.31m
7:52AM0.23m
8:15PM0.19m
8:20AM0.15m
8:44PM0.09m
8:49AM0.09m
9:14PM0.02m
clear
clear
clear
clear
clear
part cloud
clear
part cloud
part cloud
cloud
clear
clear
clear
clear
clear
clear
clear
part cloud
part cloud
part cloud
rain showers
<span class="translation_missing" title="translation missing: en.weather_tables.sunrise">Sunrise</span>
6:37
6:37
6:35
6:33
6:31
6:31
6:30
<span class="translation_missing" title="translation missing: en.weather_tables.sunset">Sunset</span>
6:38
6:39
6:40
6:42
6:42
6:43
6:44
 mm
4
Temp °C
23
24
21
23
27
24
29
27
23
17
19
16
18
20
19
23
25
21
22
22
17
Feels °C
22
22
21
22
26
24
28
26
23
17
19
13
15
18
17
23
23
21
20
20
18
  • Map Icons:
  • Break
  • Live Wave Height (m)
  • Live Wind Speed (km/h)
  • Surf Rating (10 Max)
  • Ocean Swells (m)
  • Wind Speed (km/h)
Map placeholder
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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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