Dunes surfForecast / Cape Town / South Africa

information circle16 Day Weather and Surf, issued 1 am Wednesday 13 May 2026 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
17.2° C
(Which is normal for this time of year)

Best Forecast Surf Conditions for Dunes this week:

The surf forecast for Dunes over the next 16 days: The first swell (rated 1 star or higher) is forecast to arrive on Wednesday (May 13) at 11AM. The primary swell is predicted to be 3.5m and 12s period with a secondary swell of 2.5m and 12s. The wind is predicted to be cross-onshore as the swell arrives.

The most powerful waves expected at Dunes in the next 16 days are 3.5m 12s and forecast to arrive on Wednesday (May 13) at 2PM. Winds are predicted to be cross-onshore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 2.0m 6s period and expected on Sunday (May 17) at 2PM.

Wave TypeTime (SAST) & Date Wave Height & Period
Next good surf (1 star+)11AM (Wed 13th May)11ft (3.5m) 12s
Best Surf11AM (Wed 13th May)11ft (3.5m) 12s
Most Powerful 2PM (Wed 13th May)11ft (3.5m) 12s

Table - best surf conditions forecast for Dunes over the next 16 days.


Updates in  hr  min  s Forecast update imminent

Short Range Forecast

Mostly dry. Very mild (max 17°C on Fri afternoon, min 14°C on Wed night). Wind will be generally light.

Days 4-6 Weather Summary

Mostly dry. Very mild (max 19°C on Mon afternoon, min 14°C on Sat morning). Winds decreasing (fresh winds from the SE on Sun afternoon, calm by Mon afternoon).

Wednesday
13
Thursday
14
Friday
15
Saturday
16
Sunday
17
Monday
18
Tuesday
19
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
Rating
(10 max)
!
!
4
4
3
3
4
4
4
4
3
1
1
1
3
4
4
1
0
1
2
Swell
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Wave
Height (m)
Direction
Period (s)
3.5
SSW
12
3.5
SSW
12
3
SSW
12
2.4
SSW
12
1.9
SSW
11
1.3
S
15
2.5
S
14
2.4
S
14
2.5
SW
13
2.1
WSW
12
1.8
WSW
13
1.5
WSW
13
1.2
WSW
12
1.5
WSW
13
1.6
WSW
13
1.7
WSW
14
1.6
WSW
14
1.6
WSW
13
1.5
WSW
13
1.5
WSW
13
2
S
9
Wave Graph
Metric surfscale
Energy kJ
3374
3461
2343
1465
823
716
2487
2217
2243
1320
1083
711
419
793
850
1127
915
888
784
722
607
Wind (km/h)
20
WSW
10
WSW
5
W
0
NW
10
WNW
5
NW
15
SSE
20
SSE
25
SE
20
SE
25
SE
25
SE
35
SE
35
SE
30
SE
15
E
10
SE
20
N
25
N
15
NW
20
N
cross-on
cross-on
glassy
glassy
on
on
cross-off
cross-off
off
off
cross-off
cross-off
cross-off
cross-off
off
off
off
cross-on
cross-on
on
cross
High Tide
12:45PM1.29m
00:55AM1.50m
1:30PM1.39m
1:39AM1.59m
2:14PM1.47m
2:23AM1.65m
2:57PM1.52m
3:08AM1.66m
3:42PM1.54m
3:55AM1.62m
4:28PM1.51m
4:43AM1.54m
5:17PM1.46m
Low Tide
6:43PM0.30m
7:22AM0.12m
7:28PM0.22m
8:04AM0.02m
8:13PM0.15m
8:47AM-0.03m
8:58PM0.10m
9:30AM-0.04m
9:45PM0.10m
10:15AM-0.00m
10:33PM0.14m
11:02AM0.08m
11:26PM0.22m
cloud
part cloud
part cloud
clear
clear
clear
clear
clear
clear
clear
clear
clear
clear
clear
part cloud
part cloud
part cloud
part cloud
part cloud
part cloud
clear
<span class="translation_missing" title="translation missing: en.weather_tables.sunrise">Sunrise</span>
7:30
7:31
7:31
7:31
7:33
7:33
7:33
<span class="translation_missing" title="translation missing: en.weather_tables.sunset">Sunset</span>
5:54
5:53
5:52
5:52
5:52
5:51
5:51
Temp °C
15
15
15
14
15
16
16
17
16
15
18
18
16
18
18
18
19
18
17
17
16
9
11
13
13
14
14
17
15
12
12
15
15
11
13
13
16
19
19
14
15
15
Swell 1
Height (m)
Direction
Period (s)
3.5
SSW
12
3.5
SSW
12
3
SSW
12
2.4
SSW
12
1.9
SSW
11
1.6
SSW
11
2.5
S
14
2.4
S
14
2.5
SW
13
2.1
WSW
12
1.8
WSW
13
1.5
WSW
13
1.2
WSW
12
1.5
WSW
13
1.6
WSW
13
1.7
WSW
14
1.6
WSW
14
1.6
WSW
13
1.6
SSE
8
1.8
SSE
9
1.3
WSW
12
Energy kJ
3374
3461
2343
1465
823
573
2487
2217
2243
1320
1083
711
419
793
850
1127
915
888
361
466
458
Swell 2
Height (m)
Direction
Period (s)
2.5
W
12
2.2
W
12
1.8
WSW
11
1.6
WSW
11
1.6
WSW
12
1.3
S
15
1.4
SW
11
1.7
SW
11
2.2
S
13
1.6
S
12
1.4
S
12
1.1
S
11
0.8
WSW
15
0.4
S
11
0.7
SW
14
1.5
WSW
13
1.5
WSW
13
1
SW
12
Energy kJ
1644
1365
851
572
730
716
431
701
1632
772
544
303
272
37
206
784
722
297
Swell 3
Height (m)
Direction
Period (s)
0.1
SE
11
0.1
SW
20
0.4
SW
18
0.4
WSW
17
1.2
WSW
13
1.2
WSW
15
1.6
WSW
15
0.1
W
13
0.4
SSE
13
0.4
S
9
0.7
SSW
14
1.5
S
8
0.2
SSW
10
Energy kJ
5
15
81
119
433
661
1162
3
59
28
186
316
10
Wind waves
Height (m)
Direction
Period (s)
0.7
SE
4
1.4
SE
5
1.4
SE
5
1.5
SE
6
1.9
SSE
6
2
SSE
6
2.3
SSE
7
2.1
SE
7
2.2
SE
7
2.2
SSE
8
2
S
9
Energy kJ
13
103
115
138
233
295
459
370
434
643
607
Nearest Offshore or Glassy
Rating
(10 max)
4
4
4
4
3
4
4
5
4
4
4
4
3
3
4
4
4
4
2
2
3
Distance (km)
161
2
0
0
8
4
0
1
0
0
1
1
23
23
4
0
0
10
29
8
10
Best forecast wave conditions in Cape Town
Rating
(10 max)
4
5
4
3
4
5
5
5
4
4
4
3
3
4
4
4
4
2
2
3
Best forecast wave conditions in South Africa
Rating
(10 max)
4
4
9
4
4
4
5
5
5
4
4
4
3
4
4
4
4
4
4
3
3
Header Global
Rating
(10 max)
9
9
9
5
4
5
5
5
5
4
4
5
5
5
4
4
4
4
4
4
4
  • 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 16 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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