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Surf Forecasts:

Nine Mile Reef surfForecast / Cape Town / South Africa

information circle12 Day Weather and Surf, issued 1 pm Thursday 20 Nov 2025 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
14.9° C
 (Which is 2.9°C colder than average 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 12 days: The first swell (rated 1 star or higher) is forecast to arrive on Tuesday (Nov 25) at 8AM. The primary swell is predicted to be 1.2m and 13s period with a secondary swell of 1.0m and 6s. The wind is predicted to be glassy as the swell arrives.

The most powerful waves expected at Nine Mile Reef in the next 12 days are 2.0m 15s and forecast to arrive on Friday (Nov 21) 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 0.1m 12s period and expected on Friday (Nov 21) at 8AM.

Wave TypeTime (SAST) & Date Wave Height & Period
Next good surf (1 star+) 8AM (Tue 25th Nov)4ft (1.2m) 13s
Best Surf 8AM (Tue 25th Nov)4ft (1.2m) 13s
Most Powerful 2AM (Fri 21st Nov)6.5ft (2.0m) 15s

Table - best surf conditions forecast for Nine Mile Reef over the next 12 days.

Updates in  hr  min  s Forecast update imminent 
12 DaysHourly
Print Table

Short Range Forecast Mostly dry. Warm (max 27°C on Sat morning, min 17°C on Thu night). Winds decreasing (strong winds from the SSE on Fri afternoon, light winds from the SE by Sat morning).

Days 3-6 Weather Summary Mostly dry. Warm (max 25°C on Tue morning, min 16°C on Sun night). Winds increasing (calm on Tue morning, strong winds from the SSE by Wed morning).

Thu
20
Friday
21
Saturday
22
Sunday
23
Monday
24
Tuesday
25
Wednesday
26
PMNightAMPMNightAMPMNightAMPMNightAMPMNightAMPMNightAMPMNightAM
Rating
(10 max)
0
0
0
0
0
0
0
0
0
0
0
0
0
1
0
0
0
0
0
0
0
Swell
Height Map
See all maps
Wave Height (m) & direction (?)
2
SSW
2
SSW
1.7
SSW
1.4
SSW
1.3
SSW
0.8
SW
2.5
SSE
1.7
SSE
1.3
S
1.3
S
1
SW
1.1
SW
1.1
SW
1.3
SSW
1.1
SW
1
SSW
1.2
SSW
1.7
SSW
1.6
SW
1.3
SW
1.1
SW
Period(s) (?)171514131212710991614141413121115141312
Wave
Graph
(?)Metric surfscale
Energy kJ (?)2295173910336495252036115862872624684595146913882943291405988552330
Wind
(km/h)
35
SSE
20
SE
30
SSE
40
SSE
20
SE
15
S
35
SSE
20
SSE
35
SSE
35
S
20
SE
15
S
35
SSE
15
SE
15
S
30
S
25
SSE
40
SSE
40
SE
30
ESE
20
SE
Wind State (?)
onshore
cross-onshore
cross-shore
cross-offshore
offshore
glassy
oncross-
on		cross-
on		cross-
on		cross-
on		ononcross-
on		ononcross-
on		oncross-
on		cross-
on		ononcross-
on		cross-
on		cross-
on		cross-
on		cross-
on
High Tide
/ height (m)
3:05PM
1.46
3:31AM
1.40
3:36PM
1.43
4:03AM
1.37
4:08PM
1.39
4:36AM
1.34
4:40PM
1.33
5:11AM
1.29
5:15PM
1.27
5:52AM
1.25
5:56PM
1.20
6:40AM
1.21
6:47PM
1.13
7:40AM
1.19
Low Tide
/ height (m)
9:22PM
0.16
9:33AM
0.29
9:52PM
0.19
10:04AM
0.32
10:23PM
0.23
10:36AM
0.36
10:55PM
0.28
11:12AM
0.42
11:31PM
0.33
11:53AM
0.48
12:12AM
0.39
12:46PM
0.53
1:03AM
0.44
1:56PM
0.56
Thu
20
Friday
21
Saturday
22
Sunday
23
Monday
24
Tuesday
25
Wednesday
26
Sunrise--5:30--5:28--5:28--5:28--5:28--5:28--5:26
Sunset7:30--7:31--7:32--7:34--7:35--7:36--7:36--
clear
clear
clear
clear
clear
clear
clear
clear
clear
clear
clear
clear
clear
clear
clear
clear
clear
part cloud
clear
clear
clear
Rain (mm)
---------------------
Temp. °C231924252027262222221924242125231822221623
Feels °C (?)171420191625221816161521181722201416141019
  • 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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View detailed surf forecast for Nine Mile Reef at:
surf-forecast.com

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 12 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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