Nine Mile Reef Surf Break

Lat Long: 34.07° S 18.66° E

Nine Mile Reef Surf Forecast and Surf Report

Issued: 1 am 04 Aug 2026 (local time)

Forecast update in  hr  min

Today's Nine Mile Reef sea temperature is
15.0° C
0.4° 

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 4 Aug 2026:

  • Best quality surf: Thursday 6 Aug, 2AM (local time) - 7ft (2.1m), 14s period, SW swell with offshore winds.
  • Most powerful swell: Monday 10 Aug, 2AM (local time) - 15ft (4.5m), 12s period, S swell with 5,073 kJ wave energy.
  • Next surfable swell (1★+): Tuesday 4 Aug, 11AM (local time) - 2.5ft (0.8m), 11s 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 Tuesday (Aug 04) at 11AM. The primary swell is predicted to be 0.8m and 11s period with a secondary swell of 0.1m and 12s. 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 12s and forecast to arrive on Monday (Aug 10) 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 Wednesday (Aug 05) at 5PM.

Wave TypeTime (SAST) & Date Wave Height & Period
Next good surf (1 star+)11AM (Tue 4th Aug)2.5ft (0.8m) 11s
Best Surf 2AM (Thu 6th Aug)7ft (2.1m) 14s
Most Powerful 2AM (Mon 10th Aug)15ft (4.5m) 12s

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


Short Range Forecast

Light rain (total 8mm), mostly falling on Wed night. Warm (max 20°C on Tue afternoon, min 11°C on Thu night). Winds increasing (calm on Tue morning, fresh winds from the NNW by Wed afternoon).

Days 4-6 Weather Summary

Heavy rain (total 26mm), heaviest during Sat night. Very mild (max 15°C on Fri afternoon, min 10°C on Sun morning). Winds increasing (calm on Fri night, strong winds from the SSE by Sun morning).

Tuesday
4
Wednesday
5
Thursday
6
Friday
7
Saturday
8
Sunday
9
Monday
10
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
Rating
(10 max)
1
0
2
4
1
!
3
1
1
2
!
!
2
4
!
0
0
0
0
0
!
Swell
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Wave
Height (m)
Direction
Period (s)
0.8
SW
11
0.8
SW
11
0.6
SSW
15
1.4
SW
16
1.5
SW
15
2.1
SW
14
1.9
SW
13
1.8
SW
12
1.9
SW
14
2
SSW
14
2.5
SSW
16
2.1
SSW
14
1.7
SSW
13
1.9
SSW
13
2.1
SW
13
1.9
SW
12
3.5
SW
10
4.5
S
12
3
S
11
2.5
SSE
10
3
SSE
10
Wave Graph
Metric surfscale
Energy kJ
171
137
142
1005
979
1639
1228
1025
1449
1690
2963
1784
975
1253
1565
1048
2879
5073
2116
1451
1845
Wind (km/h)
0
SSW
5
SE
5
NNW
25
N
25
NW
25
N
10
SE
15
SSE
15
SE
15
SE
15
SSE
5
SSW
10
SW
10
WNW
10
SW
40
SSE
40
SSE
30
SE
30
SE
25
ESE
10
E
Wind State
glassy
cross-on
off
off
cross-off
off
cross-on
cross-on
cross-on
cross-on
on
glassy
cross-on
cross-off
cross-on
on
cross-on
cross-on
cross-on
cross-on
cross
High Tide
6:47PM1.42m
7:13AM1.20m
7:37PM1.34m
8:17AM1.11m
8:47PM1.25m
9:49AM1.06m
10:22PM1.21m
11:32AM1.10m
11:55PM1.26m
12:49PM1.23m
1:06AM1.36m
1:46PM1.38m
2:01AM1.47m
Low Tide
12:25PM0.29m
1:08AM0.32m
1:10PM0.39m
2:06AM0.40m
2:11PM0.49m
3:28AM0.46m
3:46PM0.55m
5:10AM0.44m
5:36PM0.52m
6:34AM0.34m
6:58PM0.40m
7:33AM0.22m
7:56PM0.26m
clear
part cloud
clear
clear
clear
rain showers
light rain
part cloud
clear
clear
clear
clear
clear
clear
rain showers
rain showers
rain showers
rain showers
clear
clear
clear
<span class="translation_missing" title="translation missing: en.weather_tables.sunrise">Sunrise</span>
7:35
7:35
7:33
7:33
7:31
7:31
7:30
<span class="translation_missing" title="translation missing: en.weather_tables.sunset">Sunset</span>
6:07
6:07
6:07
6:08
6:09
6:09
6:10
 mm
5
3
16
7
2
1
Temp °C
18
20
15
15
18
14
12
13
13
13
15
14
13
15
12
11
11
11
11
13
11
Feels °C
17
18
14
10
12
10
10
11
10
10
12
13
11
13
9
7
3
2
4
6
4
  • 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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