Nine Mile Reef Surf Break

Lat Long: 34.07° S 18.66° E

Nine Mile Reef Surf Forecast and Surf Report

Issued: 1 pm 04 Aug 2026 (local time)

Forecast update in  hr  min

Today's Nine Mile Reef sea temperature is
15.1° C
0.3° 

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 (2.2m), 13s period, SW swell with offshore winds.
  • Most powerful swell: Sunday 9 Aug, 5PM (local time) - 11ft (3.5m), 11s period, SSW swell with 2,924 kJ wave energy.
  • Next surfable swell (1★+): Tuesday 4 Aug, 11PM (local time) - 2.5ft (0.7m), 10s 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 11PM. The primary swell is predicted to be 0.7m and 10s period with a secondary swell of 0.4m and 15s. Another secondary swell of 0.2m and 2s 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 3.5m 11s and forecast to arrive on Sunday (Aug 09) at 5PM. Winds are predicted to be cross-onshore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 1.3m 5s period and expected on Wednesday (Aug 05) at 5PM.

Wave TypeTime (SAST) & Date Wave Height & Period
Next good surf (1 star+)11PM (Tue 4th Aug)2.5ft (0.7m) 10s
Best Surf 2AM (Thu 6th Aug)7ft (2.2m) 13s
Most Powerful 5PM (Sun 9th Aug)11ft (3.5m) 11s

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


Short Range Forecast

Moderate rain (total 13mm), heaviest on Wed night. Very mild (max 19°C on Tue afternoon, min 11°C on Thu morning). Winds increasing (calm on Tue night, fresh winds from the NNW by Wed afternoon).

Days 5-7 Weather Summary

Heavy rain (total 23mm), heaviest during Sat night. Very mild (max 14°C on Fri afternoon, min 10°C on Sat morning). Winds increasing (light winds from the SSW on Sat afternoon, strong winds from the SSE by Sun afternoon).

Tue
4
Wednesday
5
Thursday
6
Friday
7
Saturday
8
Sunday
9
Monday
10
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
Rating
(10 max)
0
2
3
1
!
!
1
2
!
!
!
2
3
!
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
0.6
SSW
15
1.4
SW
16
1.5
SW
15
2.2
SW
13
2.1
SW
13
2
SW
12
1.7
SSW
12
2.1
SSW
15
2.3
SSW
15
2.2
SSW
14
1.8
SW
13
2
SSW
14
2.5
SW
13
2.2
SSW
12
3.5
SSW
11
2.5
S
10
1.9
S
9
2.1
SSE
9
2.5
SE
9
Wave Graph
Metric surfscale
Energy kJ
137
142
1005
979
1693
1408
1206
821
1927
2400
1960
1144
1487
2143
1402
2924
1179
614
732
965
Wind (km/h)
10
SSE
15
N
30
N
30
NNW
25
N
10
SSE
20
SSE
15
SE
10
SSE
20
S
5
SSE
15
S
5
SSW
15
N
25
S
35
SSE
30
SE
30
ESE
30
ESE
15
E
Wind State
on
off
off
cross-off
off
on
on
cross-on
on
on
on
on
cross-on
off
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
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
clear
clear
clear
rain showers
light rain
part cloud
clear
clear
clear
clear
clear
clear
rain showers
rain showers
light rain
clear
clear
clear
clear
<span class="translation_missing" title="translation missing: en.weather_tables.sunrise">Sunrise</span>
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
10
3
10
8
5
Temp °C
19
15
15
18
14
12
13
12
13
14
12
12
13
12
12
11
11
11
12
11
Feels °C
17
14
10
12
10
10
10
8
11
12
9
9
10
10
6
3
3
4
4
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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