Dias Beach surfForecast / Cape Town / South Africa

information circle48hr Weather and Surf, issued 7 am 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 11AM is: 1.7m 14s primary swell from a West-southwest direction and 0.5m 13s secondary swell from a South-southeast direction, 1.7m 6s secondary swell from a Southeast direction (forecast issued at 07:00am May 18). The wind direction is predicted to be cross-shore.

Time (SAST) & DateWave HeightWave Period
Morning (18 May)5.5ft (1.7m)14s
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 16°C on Mon morning). Winds decreasing (near gales from the ESE on Mon night, light winds from the N by Wed night).

Monday
18
Tuesday
19
Wednesday
20
Thu
21
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
5 PM
8 PM
11 PM
2 AM
Rating
(10 max)
0
0
0
0
0
0
0
0
0
0
0
!
0
0
0
0
!
0
!
!
1
3
2
2
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
1.7
WSW
14
1.7
WSW
14
1.6
WSW
14
1.7
WSW
13
3
SE
7
3
SE
8
3.5
SE
8
3.5
SE
8
3.5
SE
8
3.5
SE
8
3
SE
8
3
SE
8
3.5
SE
9
4
SE
9
3.5
SE
9
3.5
SE
9
3
SE
9
3
SE
9
3
SE
8
2.3
SE
8
2.5
SE
9
2.2
SE
9
1.8
SE
9
Wave Graph
Metric surfscale
Energy kJ
1018
1053
1244
969
975
888
1178
1550
1829
1871
1493
1081
1107
2112
2476
2039
1777
1463
1463
1044
760
916
747
475
Wind (km/h)
40
SE
40
SE
45
SE
50
SE
55
SE
60
ESE
55
ESE
60
ESE
60
ESE
55
SE
45
ESE
30
ESE
50
ESE
55
ESE
50
SE
35
ESE
30
ESE
30
ESE
30
ESE
25
ESE
25
SE
15
E
10
ESE
10
ESE
cross
cross
cross
cross
cross
cross
cross
cross
cross
cross
cross
cross
cross
cross
cross
cross
cross
cross
cross
cross
cross
cross-off
cross
cross
High Tide
4:28PM1.51m
4:43AM1.54m
5:17PM1.46m
5:34AM1.43m
6:11PM1.39m
Low Tide
10:16AM-0.00m
10:34PM0.14m
11:03AM0.08m
11:26PM0.22m
11:53AM0.18m
00:24AM0.31m
clear
part cloud
cloud
cloud
cloud
cloud
part cloud
part cloud
cloud
part cloud
cloud
cloud
cloud
cloud
cloud
part cloud
cloud
cloud
cloud
part cloud
clear
clear
clear
clear
<span class="translation_missing" title="translation missing: en.weather_tables.sunrise">Sunrise</span>
7:33
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
16
16
17
18
17
17
17
17
17
17
17
19
18
16
17
17
17
17
17
19
20
20
19
18
10
10
10
10
7
7
7
7
7
8
10
14
10
7
9
12
13
12
13
16
17
19
18
18
Swell 1
Height (m)
Direction
Period (s)
1.7
WSW
13
1.7
WSW
14
1.7
WSW
14
1.6
WSW
14
1.7
WSW
13
1.6
WSW
13
1.5
WSW
13
1.5
WSW
13
1.4
WSW
13
1.4
WSW
13
1.3
WSW
13
1.3
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
WSW
12
0.8
SSE
11
0.7
SE
11
0.6
WSW
11
0.5
WSW
11
1.8
SE
9
Energy kJ
1018
1053
1244
969
975
888
772
734
669
659
528
520
414
402
325
260
226
184
180
160
126
82
68
475
Swell 2
Height (m)
Direction
Period (s)
0.5
SSE
14
0.5
SSE
13
0.5
SSE
13
0.7
SW
14
0.4
SSE
12
0.1
S
18
0.1
S
16
0.1
SE
16
0.2
SSE
16
0.3
SSE
15
0.4
SE
15
0.4
SSE
14
0.2
SSW
10
0.1
S
19
0.7
SSE
12
0.1
SW
16
0.2
SSW
16
0.7
WSW
12
0.7
WSW
12
0.6
SSE
12
0.5
SW
14
0.6
SW
14
Energy kJ
104
98
96
200
51
6
5
10
24
44
54
76
9
7
131
10
25
123
119
94
102
118
Swell 3
Height (m)
Direction
Period (s)
0.5
S
10
0.5
S
10
0.4
SSE
10
0.7
SSW
8
0.5
SSE
12
0.1
S
17
0.3
SSW
10
0.3
SSW
10
0.1
SW
10
0.1
SW
16
0.2
SSW
16
0.3
SW
15
0.4
SW
15
0.4
SW
15
0.4
WSW
11
0.4
WSW
11
Energy kJ
48
48
37
56
85
6
20
19
4
10
25
36
55
75
47
47
Wind waves
Height (m)
Direction
Period (s)
1.5
SE
5
1.6
SE
6
1.7
SE
6
1.9
SE
6
2.5
SE
7
3
SE
7
3
SE
8
3.5
SE
8
3.5
SE
8
3.5
SE
8
3.5
SE
8
3
SE
8
3
SE
8
3.5
SE
9
4
SE
9
3.5
SE
9
3.5
SE
9
3
SE
9
3
SE
9
3
SE
8
2.3
SE
8
2.5
SE
9
2.2
SE
9
Energy kJ
117
145
178
249
613
855
1178
1550
1829
1871
1493
1081
1107
2112
2476
2039
1777
1463
1463
1044
760
916
747
Nearest Offshore or Glassy
Rating
(10 max)
2
2
2
2
4
4
4
4
4
3
3
3
3
4
4
4
2
4
2
2
1
2
2
2
Distance (km)
35
30
35
35
49
49
49
49
49
39
39
39
35
29
32
49
35
29
20
20
28
15
15
15
Best forecast wave conditions in Cape Town
Rating
(10 max)
3
4
4
4
4
4
4
4
4
4
4
4
4
4
4
4
4
4
4
4
3
3
3
3
Best forecast wave conditions in South Africa
Rating
(10 max)
3
3
3
3
4
4
4
4
4
4
4
4
4
4
4
4
4
4
4
4
3
4
4
4
Header Global
Rating
(10 max)
4
4
4
7
5
4
5
5
5
4
4
4
4
4
4
4
4
4
5
4
4
5
5
5
  • 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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