Dunes surfForecast / Cape Town / South Africa

information circle12 Day Weather and Surf, issued 7 pm Sunday 07 Dec 2025 SAST
Forecast update in hr  min  s Forecast update imminent
Dunes surf forecast is for near shore open water. Breaking waves will often be smaller at less exposed spots.
Today's Dunes sea temperature is
16.6° C
(Which is 2.2°C colder than average for this time of year)


Best Forecast Surf Conditions for Dunes this week:

The surf forecast for Dunes over the next 12 days: The first swell (rated 1 star or higher) is forecast to arrive on Tuesday (Dec 09) at 2AM. The primary swell is predicted to be 2.1m and 12s period with a secondary swell of 0.1m and 12s. The wind is predicted to be cross-offshore as the swell arrives.

The most powerful waves expected at Dunes in the next 12 days are 3.0m 14s and forecast to arrive on Saturday (Dec 13) at 8AM. Winds are predicted to be onshore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 1.8m 6s period and expected on Tuesday (Dec 09) at 11PM.

Wave TypeTime (SAST) & Date Wave Height & Period
Next good surf (1 star+) 2AM (Tue 9th Dec)7ft (2.1m) 12s
Best Surf 2AM (Sun 14th Dec)8ft (2.5m) 12s
Most Powerful 8AM (Sat 13th Dec)10ft (3.0m) 14s

Table - best surf conditions forecast for Dunes over the next 12 days.

Updates in  hr  min  s Forecast update imminent

Short Range Forecast Mostly dry. Warm (max 21°C on Wed morning, min 17°C on Sun night). Winds increasing (light winds from the S on Mon night, strong winds from the SE by Tue night).

Days 3-6 Weather Summary Light rain (total 6mm), mostly falling on Fri afternoon. Warm (max 21°C on Wed night, min 16°C on Fri night). Winds increasing (calm on Thu morning, strong winds from the NNW by Fri morning).

Monday
08
Tuesday
09
Wednesday
10
Thursday
11
Friday
12
Saturday
13
Sun
14
NightAMPMNightAMPMNightAMPMNightAMPMNightAMPMNightAMPMNightAMPM
Rating
(10 max)
1
2
1
3
2
0
1
2
0
3
2
0
0
0
0
0
0
0
4
3
2
Swell
Height Map
Wave Height (m) & direction (?)
1.8
SW
1.8
SW
2
SW
2.1
SW
2.1
SW
2.1
SW
1.8
SW
1.6
SW
2.3
SE
1.3
SW
1.2
SW
1.2
SW
0.4
SW
1.4
SW
2
SW
2.4
SW
3
SW
3
SW
2.5
SW
2.5
SW
2.4
SW
Period(s) (?)121212121111111071099191716141313121111
Wave
Graph
(?)Metric surfscale
Energy kJ (?)960944107611111087107275652347136225824710111051909226530762822199317251371
Wind
(km/h)
30
SSE
20
S
20
SSW
10
SSE
20
S
35
SSE
40
SE
25
SE
40
SE
20
SE
5
SSE
20
SSW
20
NW
45
NNW
35
W
30
W
35
W
25
WSW
0
S
10
WSW
20
SSW
Wind State (?)
onshore
cross-onshore
cross-shore
cross-offshore
offshore
glassy
cross-
off
cross-
off
crosscross-
off
cross-
off
cross-
off
offcross-
off
cross-
off
offglasscrossoncross-
on
oncross-
on
oncross-
on
glasscross-
on
cross
High Tide
/ height (m)
5:29AM
1.47
5:45PM
1.36
6:19AM
1.40
6:37PM
1.24
7:14AM
1.33
7:36PM
1.12
8:15AM
1.26
8:46PM
1.04
9:21AM
1.21
10:05PM
1.01
10:28AM
1.20
11:18PM
1.03
11:27AM
1.20
Low Tide
/ height (m)
11:12PM
0.11
11:41AM
0.24
11:59PM
0.21
12:37PM
0.33
12:48AM
0.32
1:39PM
0.42
1:43AM
0.42
2:50PM
0.48
2:47AM
0.50
4:06PM
0.50
4:00AM
0.55
5:14PM
0.47
5:12AM
0.56
6:09PM
0.43
Monday
08
Tuesday
09
Wednesday
10
Thursday
11
Friday
12
Saturday
13
Sun
14
Sunrise-5:26--5:26--5:28--5:28--5:28--5:28--5:28-
Sunset--7:47--7:49--7:50--7:51--7:51--7:52--7:52
part cloud
clear
clear
clear
part cloud
part cloud
clear
clear
clear
clear
clear
part cloud
cloud
part cloud
rain showers
rain showers
part cloud
part cloud
clear
clear
clear
Rain (mm)
--------------42-----
Temp. °C181920202019172121212021201819181718181818
Feels °C (?)131618191914101715152020201214131111141615
  • 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 Dunes Surf forecast

The above surf forecast table for Dunes provides essential information for determining whether the surfing conditions will be good over the next 12 days. A general guide to surfing at Dunes can be found by selecting the local surf guide option on the grey menu. Our Dunes 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 (Dunes) 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 Dunes 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.

Are you planning a holiday in Cape Town? If you are looking for accommodation near Dunes, camping, hotels and holiday cottages in Cape Town, consider staying in Cape Town which is 24 km (15 miles) away. Other places in and around Cape Town where you can find information about places to rent, and car hire include Robben Island which is 35 km (22 miles) away, Bellville, Kayamnandi and Stellenbosch.

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