Dias Beach surfForecast / Cape Town / South Africa

information circle48hr Weather and Surf, issued 7 pm Monday 18 May 2026 SAST
Forecast update in hr  min  s Forecast update imminent
Dias Beach surf forecast is for near shore open water. Breaking waves will often be smaller at less exposed spots.
Today's Dias Beach sea temperature is
16.6° C
(Which is slightly cooler than normal)

How big are the waves at Dias Beach today?

The current surf forecast for Dias Beach at 11PM is: 3.0m 8s primary swell from a Southeast direction and 1.5m 13s secondary swell from a West-southwest direction, 0.1m 18s secondary swell from a South direction (forecast issued at 07:00pm May 18). The wind direction is predicted to be cross-shore.

Time (SAST) & DateWave HeightWave Period
Morning (18 May)--
Afternoon (18 May)5ft (1.6m)14s
Evening (18 May)10ft (3.0m)7s

Table - waves today at Dias Beach. (Swell directed towards the surf break)


Updates in  hr  min  s Forecast update imminent

Short Range Forecast

Mostly dry. Warm (max 20°C on Wed afternoon, min 17°C on Mon night). Winds decreasing (near gales from the ESE on Mon night, light winds from the NNW by Wed night).

Mon
18
Tuesday
19
Wednesday
20
Thu
21
5 PM
8 PM
11 PM
2 AM
5 AM
8 AM
11 AM
2 PM
5 PM
8 PM
11 PM
2 AM
5 AM
8 AM
11 AM
2 PM
5 PM
8 PM
11 PM
2 AM
5 AM
8 AM
11 AM
2 PM
Rating
(10 max)
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
!
!
1
1
4
3
3
3
1
Swell
Height Map
Height MapHeight MapHeight Map
Height MapHeight MapHeight Map
Height MapHeight MapHeight Map
Height MapHeight MapHeight Map
Wave
Height (m)
Direction
Period (s)
1.7
WSW
13
3
SE
7
3
SE
8
3.5
SE
8
4
SE
8
4
SE
9
3.5
SE
9
3.5
SE
8
3.5
SE
8
3.5
SE
9
3.5
SE
9
3.5
SE
9
3.5
SE
9
3.5
SE
9
3
SE
9
3
SE
8
3
SE
9
2.5
SE
9
2.1
SE
8
2.2
ESE
9
1.6
SE
8
1.6
SE
9
1.4
SE
9
1.3
SE
9
Wave Graph
Metric surfscale
Energy kJ
975
967
1075
1387
2017
2297
2009
1432
1597
2128
1969
1925
1903
1714
1325
1086
1174
928
602
767
375
376
304
252
Wind (km/h)
55
SE
60
ESE
55
ESE
60
ESE
60
ESE
60
ESE
55
ESE
40
ESE
45
ESE
55
ESE
50
ESE
45
ESE
40
ESE
35
ESE
35
ESE
20
ESE
20
SE
25
ESE
15
ESE
10
E
5
NNW
15
NNW
15
NNW
20
NW
cross
cross
cross
cross
cross
cross
cross
cross
cross
cross
cross
cross
cross
cross
cross
cross
cross
cross
cross
cross-off
cross-off
cross-off
cross-off
cross-off
High Tide
4:28PM1.51m
4:43AM1.54m
5:17PM1.46m
5:34AM1.43m
6:11PM1.39m
6:31AM1.30m
Low Tide
10:34PM0.14m
11:03AM0.08m
11:26PM0.22m
11:53AM0.18m
00:24AM0.31m
12:48PM0.29m
cloud
cloud
part cloud
cloud
cloud
cloud
part cloud
cloud
cloud
part cloud
part cloud
cloud
cloud
cloud
cloud
cloud
part cloud
clear
cloud
cloud
part cloud
part cloud
clear
clear
<span class="translation_missing" title="translation missing: en.weather_tables.sunrise">Sunrise</span>
7:33
7:35
7:35
<span class="translation_missing" title="translation missing: en.weather_tables.sunset">Sunset</span>
5:50
5:50
5:49
5:47
Temp °C
18
18
17
17
17
17
17
19
18
17
17
17
17
17
17
19
20
19
19
18
18
18
18
19
9
9
7
7
7
7
8
13
10
9
9
10
11
12
12
17
18
16
18
18
18
16
17
16
Swell 1
Height (m)
Direction
Period (s)
1.7
WSW
13
1.5
WSW
13
1.5
WSW
13
1.5
WSW
13
1.4
WSW
13
1.3
WSW
13
1.3
WSW
13
1.2
WSW
13
1.1
WSW
13
1.1
WSW
13
1
WSW
12
0.9
WSW
12
0.9
WSW
12
0.8
WSW
12
0.8
SSE
11
0.8
SSE
11
0.6
SSE
12
0.6
WSW
11
0.5
SW
14
1.8
SE
8
1.6
SE
8
1.6
SE
9
1.4
SE
9
1.3
SE
9
Energy kJ
975
796
772
734
669
536
528
451
414
402
325
233
226
184
160
160
93
82
102
443
375
376
304
252
Swell 2
Height (m)
Direction
Period (s)
1.2
SSW
8
0.1
S
18
0.1
S
16
0.1
SE
16
0.2
SSE
16
0.2
SSE
15
0.3
SSE
15
0.2
SSW
9
0.4
SSE
14
0.2
SSW
9
0.1
S
19
0.6
SSE
12
0.1
SW
16
0.8
WSW
12
0.7
WSW
12
0.6
WSW
12
0.6
SSE
12
0.4
WSW
11
0.6
SW
14
0.6
SW
13
0.7
SW
13
0.8
SW
13
0.7
SW
12
Energy kJ
197
6
5
10
24
22
42
8
71
8
7
103
10
180
125
90
94
47
119
113
171
199
144
Swell 3
Height (m)
Direction
Period (s)
0.4
SSE
12
0.1
S
17
0.2
SSW
9
0.1
SW
16
0.2
SSW
16
0.3
SW
15
0.4
SW
15
0.4
SW
15
0.4
SSE
12
0.4
WSW
11
0.4
SE
11
0.2
WSW
11
0.2
SSE
11
0.3
SW
20
Energy kJ
51
6
9
10
24
36
55
75
56
47
32
12
12
65
Wind waves
Height (m)
Direction
Period (s)
2.5
SE
7
3
SE
7
3
SE
8
3.5
SE
8
4
SE
8
4
SE
9
3.5
SE
9
3.5
SE
8
3.5
SE
8
3.5
SE
9
3.5
SE
9
3.5
SE
9
3.5
SE
9
3.5
SE
9
3
SE
9
3
SE
8
3
SE
9
2.5
SE
9
2.1
SE
8
2.2
ESE
9
0.4
NW
3
0.5
NW
3
Energy kJ
643
967
1075
1387
2017
2297
2009
1432
1597
2128
1969
1925
1903
1714
1325
1086
1174
928
602
767
2
5
Nearest Offshore or Glassy
Rating
(10 max)
4
4
3
3
3
3
3
4
3
3
4
3
4
1
2
1
2
1
2
4
3
3
3
2
Distance (km)
49
49
39
39
39
39
39
29
32
35
39
32
29
28
20
2
15
27
15
0
0
0
0
4
Best forecast wave conditions in Cape Town
Rating
(10 max)
4
4
4
4
4
4
4
4
4
4
4
3
4
4
4
3
3
3
3
4
3
3
3
2
Best forecast wave conditions in South Africa
Rating
(10 max)
4
4
4
4
4
4
4
4
4
4
4
4
4
4
4
4
4
4
4
4
4
4
4
3
Header Global
Rating
(10 max)
5
5
4
4
4
4
4
4
5
4
5
5
5
4
5
5
4
5
5
4
4
5
5
4
  • 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

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