Dunes surfForecast / Cape Town / South Africa

information circle12 Day Weather and Surf, issued 1 pm Friday 17 Oct 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
15.8° C
(Which is slightly cooler than normal)


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 Friday (Oct 17) at 8PM. The primary swell is predicted to be 2.2m and 12s period with a secondary swell of 0.1m and 12s. Another secondary swell of 0.9m and 7s is also forecast. 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 4.5m 17s and forecast to arrive on Sunday (Oct 19) at 5AM. Winds are predicted to be cross-offshore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 1.7m 6s period and expected on Sunday (Oct 19) at 11AM.

Wave TypeTime (SAST) & Date Wave Height & Period
Next good surf (1 star+) 8PM (Fri 17th Oct)7ft (2.2m) 12s
Best Surf 2AM (Sun 19th Oct)13ft (4.0m) 17s
Most Powerful 5AM (Sun 19th Oct)15ft (4.5m) 17s

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. Very mild (max 18°C on Mon morning, min 13°C on Sun night). Winds increasing (light winds from the WSW on Fri afternoon, near gales from the SE by Sun afternoon).

Days 3-6 Weather Summary Mostly dry. Warm (max 23°C on Tue afternoon, min 14°C on Mon night). Winds decreasing (strong winds from the SE on Mon afternoon, light winds from the S by Wed night).

Fri
17
Saturday
18
Sunday
19
Monday
20
Tuesday
21
Wednesday
22
Thursday
23
PMNightAMPMNightAMPMNightAMPMNightAMPMNightAMPMNightAMPMNightAM
Rating
(10 max)
2
1
1
3
!
!
0
3
4
0
2
2
1
3
3
2
2
3
!
3
4
Swell
Height Map
Wave Height (m) & direction (?)
2.4
SSW
2.1
SSW
2.1
SSW
2.1
SSW
4
SSW
4
SW
3.5
SW
3
SW
2.1
SW
1.8
SW
1.4
SW
1.3
SW
2.4
SE
1.6
SW
2
SW
1.8
SW
1.7
SW
1.6
SW
3.5
SW
3
SW
2.3
SW
Period(s) (?)12111112171616161414131271214131217151312
Wave
Graph
(?)Metric surfscale
Energy kJ (?)156911149881363966474265805363118041318663520511724153611037861484523326991518
Wind
(km/h)
15
SW
30
S
20
SSW
20
S
35
SE
35
SE
50
SE
40
ESE
20
SE
50
SE
35
SE
35
ESE
35
SE
25
ESE
20
S
25
S
15
S
20
SSE
25
SSE
20
SE
5
S
Wind State (?)
onshore
cross-onshore
cross-shore
cross-offshore
offshore
glassy
crosscross-
off
crosscross-
off
cross-
off
cross-
off
cross-
off
offoffcross-
off
offoffcross-
off
offcross-
off
cross-
off
cross-
off
cross-
off
cross-
off
cross-
off
glass
High Tide
/ height (m)
1:26AM
1.29
1:36PM
1.45
1:57AM
1.36
2:05PM
1.51
2:26AM
1.41
2:32PM
1.54
2:54AM
1.44
2:59PM
1.54
3:21AM
1.44
3:27PM
1.52
3:49AM
1.42
3:54PM
1.47
4:17AM
1.38
Low Tide
/ height (m)
7:25PM
0.26
7:29AM
0.28
7:57PM
0.18
7:59AM
0.23
8:24PM
0.13
8:28AM
0.20
8:51PM
0.10
8:55AM
0.19
9:16PM
0.09
9:22AM
0.19
9:42PM
0.11
9:49AM
0.22
10:09PM
0.16
10:16AM
0.27
Fri
17
Saturday
18
Sunday
19
Monday
20
Tuesday
21
Wednesday
22
Thursday
23
Sunrise--6:01--6:00--5:58--5:58--5:56--5:56--5:54
Sunset7:00--7:01--7:02--7:02--7:04--7:05--7:06--
part cloud
part cloud
part cloud
clear
clear
clear
clear
clear
clear
clear
clear
clear
clear
clear
clear
clear
part cloud
clear
clear
clear
clear
Rain (mm)
---------------------
Temp. °C171615151416161618191818231818181616161516
Feels °C (?)15141111998714131112191116151412121016
  • Map Icons:
  • Break
  • Live Wave Height (m)
  • Live Wind Speed (km/h)
  • Surf Rating (10 Max)
  • Ocean Swells (m)
  • Wind Speed (km/h)
Map placeholder

Eyeball surf reportRecent Eyeball Surf Reports for Cape Town

  1. weather stationWind Update Still cross-shore at Dunes (light winds from the SSW at Slangkop 5 km from Dunes). A 2.1m groundswell from the SSW

    Dunes
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1 h 35 min ago

13 km/h
SSW
Cross-Shore
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FREE! Surf-Forecast.com widget for your website

The surf report / weather widget below is available to embed on third party websites free of charge and provides a summary of our Dunes surf forecast. Simply grab the html code snippet that we provide and paste it into your own site. You can choose your preferred language and metric/imperial units for the surf forecast feed to suit users of your site. Click here to get the code.


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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