Dunes surfForecast / Cape Town / South Africa

information circle12 Day Weather and Surf, issued 7 am Wednesday 31 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
15.8° C
(Which is 3.8°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 Thursday (Jan 01) at 11PM. The primary swell is predicted to be 1.3m and 12s period with a secondary swell of 0.1m and 21s. 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 2.0m 14s and forecast to arrive on Saturday (Jan 03) at 11AM. 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 Saturday (Jan 03) at 11AM.

Wave TypeTime (SAST) & Date Wave Height & Period
Next good surf (1 star+)11PM (Thu 1st Jan)4.5ft (1.3m) 12s
Best Surf 5AM (Wed 7th Jan)4.5ft (1.3m) 10s
Most Powerful11AM (Sat 3rd Jan)6.5ft (2.0m) 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 24°C on Wed morning, min 19°C on Fri night). Winds increasing (light winds from the SW on Fri afternoon, fresh winds from the SE by Fri night).

Days 3-6 Weather Summary Mostly dry. Warm (max 22°C on Sun morning, min 18°C on Sun night). Winds decreasing (near gales from the SE on Sun afternoon, light winds from the S by Mon night).

Wednesday
31
Thursday
01
Friday
02
Saturday
03
Sunday
04
Monday
05
Tuesday
06
AMPMNightAMPMNightAMPMNightAMPMNightAMPMNightAMPMNightAMPMNight
Rating
(10 max)
1
0
0
1
2
2
1
1
2
1
1
0
0
0
1
1
0
1
0
1
2
Swell
Height Map
Wave Height (m) & direction (?)
1
SW
1.4
WSW
1
SW
1
SW
1.6
SW
1.2
SW
1.1
SW
1
WSW
1.6
WSW
2
WSW
1.7
WSW
1.4
WSW
2.3
SE
2.4
SE
1.1
SW
1.3
WSW
1.4
WSW
1.4
WSW
1.3
SSW
1.8
SW
1.4
SSW
Period(s) (?)111010131312121816141413771212111210810
Wave
Graph
(?)Metric surfscale
Energy kJ (?)233386200330765421319659130516041193649465511398449483509314439386
Wind
(km/h)
20
SSE
30
S
30
SSE
20
SSE
25
S
10
S
10
NW
25
SSE
35
SSE
40
SSE
45
SSE
50
SE
45
SE
50
SE
40
SE
20
SSE
30
S
15
S
15
SSW
20
SW
10
WSW
Wind State (?)
onshore
cross-onshore
cross-shore
cross-offshore
offshore
glassy
cross-
off
cross-
off
cross-
off
cross-
off
cross-
off
cross-
off
oncross-
off
cross-
off
cross-
off
cross-
off
cross-
off
cross-
off
cross-
off
offcross-
off
cross-
off
cross-
off
crosscrosscross-
on
High Tide
/ height (m)
12:36PM
1.41
1:23AM
1.31
1:36PM
1.48
2:16AM
1.42
2:29PM
1.54
3:04AM
1.50
3:17PM
1.56
3:49AM
1.56
4:03PM
1.55
4:33AM
1.58
4:46PM
1.50
5:15AM
1.56
5:28PM
1.42
Low Tide
/ height (m)
7:10PM
0.19
7:26AM
0.30
8:04PM
0.10
8:21AM
0.21
8:52PM
0.04
9:12AM
0.14
9:37PM
0.01
9:59AM
0.11
10:19PM
0.02
10:45AM
0.12
10:59PM
0.06
11:29AM
0.17
11:38PM
0.13
Wednesday
31
Thursday
01
Friday
02
Saturday
03
Sunday
04
Monday
05
Tuesday
06
Sunrise5:37--5:37--5:37--5:39--5:39--5:41--5:41--
Sunset-8:00--8:00--8:00--8:00--8:00--8:00--8:01-
cloud
part cloud
part cloud
clear
clear
clear
part cloud
clear
clear
clear
clear
clear
clear
part cloud
clear
clear
clear
clear
clear
clear
part cloud
Rain (mm)
---------------------
Temp. °C242321212121212220202020222220212220212120
Feels °C (?)222018201920221917161413161512191918212019
  • 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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