Nine Mile Reef surfForecast / Cape Town / South Africa

information circle12 Day Weather and Surf, issued 7 pm Wednesday 24 Dec 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
17.4° C
(Which is 2.0°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 Monday (Dec 29) at 5AM. The primary swell is predicted to be 1.9m and 6s period with a secondary swell of 0.8m and 6s. Another secondary swell of 0.4m and 9s is also forecast. The wind is predicted to be cross-offshore as the swell arrives.

The most powerful waves expected at Nine Mile Reef in the next 12 days are 2.2m 7s and forecast to arrive on Thursday (Dec 25) at 8PM. Winds are predicted to be cross-onshore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 0.2m 4s period and expected on Tuesday (Dec 30) at 2AM.

Wave TypeTime (SAST) & Date Wave Height & Period
Next good surf (1 star+) 5AM (Mon 29th Dec)6ft (1.9m) 6s
Best Surf 5AM (Mon 29th Dec)6ft (1.9m) 6s
Most Powerful 8PM (Thu 25th Dec)7ft (2.2m) 7s

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

Updates in  hr  min  s Forecast update imminent

Short Range Forecast Mostly dry. Warm (max 26°C on Thu morning, min 18°C on Wed night). Winds increasing (light winds from the SE on Thu morning, strong winds from the SSE by Sat afternoon).

Days 3-6 Weather Summary Mostly dry. Warm (max 29°C on Sun afternoon, min 18°C on Sat night). Winds decreasing (fresh winds from the SSE on Sun afternoon, calm by Mon night).

Thursday
25
Friday
26
Saturday
27
Sunday
28
Monday
29
Tuesday
30
Wed
31
NightAMPMNightAMPMNightAMPMNightAMPMNightAMPMNightAMPMNightAMPM
Rating
(10 max)
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
1
0
0
0
0
Swell
Height Map
Wave Height (m) & direction (?)
1.4
SSE
1.2
SSE
2
SSE
1
SSW
1.1
SW
1.9
SSE
0.9
SW
0.8
SW
1.8
SSE
0.6
SW
0.5
SW
2.1
SE
1.1
SE
0.4
SW
0.4
SW
0.4
SW
0.3
SW
0.7
WSW
0.7
SW
0.6
SW
0.6
SW
Period(s) (?)8761212611116101066999139111010
Wave
Graph
(?)Metric surfscale
Energy kJ (?)21314230328930925017213722273483458529212027701198279
Wind
(km/h)
15
ESE
10
S
35
SSE
25
SE
25
SSE
35
SSE
20
SE
25
SSE
40
SSE
20
SE
15
S
30
SSE
15
ESE
10
WSW
10
SSW
10
N
10
WNW
20
S
10
SSE
20
S
30
S
Wind State (?)
onshore
cross-onshore
cross-shore
cross-offshore
offshore
glassy
cross-
on
ononcross-
on
cross-
on
cross-
on
cross-
on
oncross-
on
cross-
on
oncross-
on
crosscross-
on
onoffcross-
off
oncross-
on
onon
High Tide
/ height (m)
6:21AM
1.38
6:30PM
1.24
7:05AM
1.36
7:23PM
1.17
7:58AM
1.33
8:29PM
1.12
9:01AM
1.31
9:49PM
1.10
10:15AM
1.32
11:11PM
1.14
11:29AM
1.36
12:23AM
1.22
12:37PM
1.42
Low Tide
/ height (m)
11:57PM
0.26
12:32PM
0.38
12:37AM
0.31
1:23PM
0.41
1:25AM
0.38
2:24PM
0.42
2:26AM
0.44
3:38PM
0.41
3:42AM
0.48
4:57PM
0.37
5:05AM
0.47
6:09PM
0.29
6:22AM
0.40
7:11PM
0.20
Thursday
25
Friday
26
Saturday
27
Sunday
28
Monday
29
Tuesday
30
Wed
31
Sunrise-5:31--5:31--5:33--5:33--5:33--5:35--5:35-
Sunset--7:57--7:58--7:58--7:58--7:59--7:59--7:59
clear
clear
clear
clear
clear
clear
part cloud
clear
clear
clear
clear
part cloud
clear
clear
clear
clear
clear
clear
clear
clear
clear
Rain (mm)
---------------------
Temp. °C212625212425212525222729252726222426202323
Feels °C (?)172521172120172219182425222625232425202120
  • 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 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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