Nine Mile Reef surfForecast / Cape Town / South Africa

information circle16 Day Weather and Surf, issued 7 pm Tuesday 31 Mar 2026 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
18.7° C
(Which is normal 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 16 days: The first swell (rated 1 star or higher) is forecast to arrive on Thursday (Apr 02) at 5AM. The primary swell is predicted to be 1.0m and 13s period with a secondary swell of 0.6m and 5s. Another secondary swell of 1.1m and 5s 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 4.0m 17s and forecast to arrive on Sunday (Apr 05) 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 0.5m 3s period and expected on Friday (Apr 03) at 11AM.

Wave TypeTime (SAST) & Date Wave Height & Period
Next good surf (1 star+) 5AM (Thu 2nd Apr)3.5ft (1.0m) 13s
Best Surf 2AM (Mon 6th Apr)11ft (3.5m) 16s
Most Powerful 8PM (Sun 5th Apr)13ft (4.0m) 17s

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


Updates in  hr  min  s Forecast update imminent

Short Range Forecast Light rain (total 4mm), mostly falling on Fri morning. Warm (max 28°C on Thu afternoon, min 18°C on Tue night). Wind will be generally light.

Days 3-6 Weather Summary Mostly dry. Warm (max 22°C on Sat afternoon, min 15°C on Sun night). Winds increasing (calm on Fri night, fresh winds from the S by Sun afternoon).

Wednesday
01
Thursday
02
Friday
03
Saturday
04
Sunday
05
Monday
06
Tue
07
NightAMPMNightAMPMNightAMPMNightAMPMNightAMPMNightAMPMNightAMPM
Rating
(10 max)
0
0
0
1
2
1
3
2
0
2
1
0
0
0
0
!
0
0
!
3
0
Swell
Height Map
Wave Height (m) & direction (?)
0.9
SW
0.7
SW
0.8
SSW
0.9
SW
1.2
SW
1.3
SW
1.3
SW
1.1
SW
1.1
SW
0.9
SSW
0.8
SW
0.7
SW
0.9
SW
1.8
SSW
3.5
SSW
3.5
SSW
2.5
SSW
2.2
SSW
2.1
SSW
2
S
1.7
SSW
Period(s) (?)91414131212131212121110101018161514131212
Wave
Graph
(?)Metric surfscale
Energy kJ (?)123211236286423537552379325235142108163666789458083009197714301254800
Wind
(km/h)
10
S
20
S
30
SSE
5
ESE
5
S
10
S
10
NW
15
NNW
15
W
5
SW
10
WNW
20
SSW
15
S
25
SSE
30
S
20
SE
20
SSE
30
SSE
20
SE
10
SSE
20
SSE
Wind State (?)
onshore
cross-onshore
cross-shore
cross-offshore
offshore
glassy
onononcrossglassoncross-
off
cross-
off
crossglasscross-
off
cross-
on
onononcross-
on
ononcross-
on
onon
High Tide
/ height (m)
2:49AM
1.62
3:09PM
1.50
3:18AM
1.63
3:38PM
1.51
3:46AM
1.61
4:06PM
1.49
4:14AM
1.56
4:34PM
1.44
4:42AM
1.48
5:02PM
1.36
5:10AM
1.38
5:31PM
1.27
5:39AM
1.27
6:04PM
1.17
Low Tide
/ height (m)
8:42PM
0.13
9:08AM
0.06
9:12PM
0.11
9:36AM
0.04
9:40PM
0.12
10:03AM
0.07
10:08PM
0.16
10:29AM
0.12
10:35PM
0.22
10:56AM
0.19
11:02PM
0.30
11:22AM
0.29
11:29PM
0.40
11:52AM
0.39
Wednesday
01
Thursday
02
Friday
03
Saturday
04
Sunday
05
Monday
06
Tue
07
Sunrise-6:56--6:56--6:58--6:58--7:00--7:00--7:01-
Sunset--6:40--6:38--6:37--6:37--6:35--6:34--6:32
clear
clear
clear
part cloud
cloud
part cloud
rain showers
rain showers
part cloud
part cloud
clear
clear
clear
clear
part cloud
clear
clear
clear
clear
clear
clear
Rain (mm)
------13-------------
Temp. °C202224222528242524202022181920171920172124
Feels °C (?)202121242629242523222020171514121514121921
  • 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 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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