Arniston surf break

Arniston surfForecast / Overberg / South Africa

information circle48hr Weather and Surf, issued 7 am Tuesday 19 May 2026 SAST
Forecast update in hr  min  s Forecast update imminent
Arniston surf forecast is for near shore open water. Breaking waves will often be smaller at less exposed spots.
Today's Arniston sea temperature is
17.1° C
(Which is normal for this time of year)

How big are the waves at Arniston today?

The current surf forecast for Arniston at 3PM is: 2.5m 8s primary swell from a Southeast direction and 0.6m 13s secondary swell from a Southwest direction, 0.4m 14s secondary swell from a South-southeast direction (forecast issued at 07:00am May 19). The wind direction is predicted to be cross-onshore.

Time (SAST) & DateWave HeightWave Period
Morning (19 May)8ft (2.5m)8s
Afternoon (19 May)8ft (2.5m)8s
Evening (19 May)10ft (3.0m)9s

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


Updates in  hr  min  s Forecast update imminent

Short Range Forecast

Moderate rain (total 10mm), heaviest on Tue morning. Warm (max 20°C on Thu afternoon, min 16°C on Wed night). Winds decreasing (strong winds from the E on Tue night, light winds from the NNE by Wed night).

Tuesday
19
Wednesday
20
Thursday
21
Fri
22
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
!
!
!
2
2
2
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)
2.5
SE
8
2.5
SE
8
2.4
SE
8
2.4
SE
8
2.5
SE
8
3
ESE
9
3.5
ESE
9
3.5
ESE
9
3.5
ESE
9
3
ESE
9
3
ESE
9
3
ESE
8
3
ESE
9
2.5
ESE
9
2.5
ESE
9
3
ESE
9
3
E
9
2.4
ESE
9
2.2
ESE
9
2
ESE
9
1.9
ESE
9
1.7
ESE
9
1.6
ESE
8
1.5
ESE
8
Wave Graph
Metric surfscale
Energy kJ
909
774
735
754
865
1373
1757
1814
1847
1553
1342
1333
1312
1076
1026
1294
1361
942
784
637
566
423
346
299
Wind (km/h)
40
ESE
35
E
35
E
35
E
40
ESE
40
E
45
E
45
E
45
E
35
E
35
E
45
E
40
E
35
E
30
E
20
E
10
NNE
10
NNW
15
WSW
20
WSW
20
SW
15
WSW
15
W
15
W
on
on
cross-on
on
on
cross-on
on
cross-on
cross-on
cross-on
cross-on
cross-on
on
cross-on
cross-on
cross-on
cross
cross-off
cross-off
cross-off
cross-off
cross-off
off
off
High Tide
5:14PM1.77m
5:30AM1.73m
6:07PM1.67m
6:25AM1.56m
7:07PM1.57m
Low Tide
11:01AM0.12m
11:23PM0.30m
11:50AM0.25m
00:21AM0.42m
12:45PM0.38m
1:30AM0.54m
thunderstorm
thunderstorm
thunderstorm
thunderstorm
thunderstorm
thunderstorm
thunderstorm
cloud
thunderstorm
cloud
cloud
clear
part cloud
cloud
clear
clear
clear
clear
clear
part cloud
clear
clear
clear
clear
<span class="translation_missing" title="translation missing: en.weather_tables.sunrise">Sunrise</span>
7:28
7:28
7:28
7:30
<span class="translation_missing" title="translation missing: en.weather_tables.sunset">Sunset</span>
5:42
5:40
5:40
5:39
1
1
2
1
1
2
1
2
Temp °C
17
17
17
17
17
17
18
17
17
17
18
18
18
18
17
17
16
17
19
20
19
17
17
16
11
12
12
13
12
11
11
10
11
12
13
12
13
14
13
15
16
17
18
18
17
15
15
14
Swell 1
Height (m)
Direction
Period (s)
0.6
SW
14
0.6
SW
14
0.6
SW
13
0.6
SW
13
0.5
SW
13
0.4
SW
13
0.4
SW
13
0.6
SSE
12
0.6
SSE
12
0.7
SSE
12
0.6
SSE
11
0.3
SW
12
0.3
SW
12
0.3
SSW
15
0.4
SW
14
2.5
ESE
9
2.5
ESE
9
2.4
ESE
9
2.2
ESE
9
2
ESE
9
1.9
ESE
9
1.7
ESE
9
1.6
ESE
8
1.5
ESE
8
Energy kJ
114
116
113
109
84
60
59
104
101
117
87
23
22
42
53
1097
1043
942
784
637
566
423
346
299
Swell 2
Height (m)
Direction
Period (s)
0.3
SSW
12
0.3
SSW
11
0.3
SSE
15
0.4
SSE
14
0.4
SSE
14
0.4
SSE
14
0.7
SSE
13
0.4
SW
13
0.4
SW
12
0.4
SW
12
0.3
SW
12
0.2
SSW
16
0.2
SSW
15
0.3
SW
12
0.4
SSW
14
0.4
SSW
14
0.4
SSW
14
0.4
SSW
13
0.4
SW
13
0.4
SW
13
0.4
SW
12
0.4
SW
12
0.4
SW
12
0.4
SSW
18
Energy kJ
26
24
42
78
73
71
142
56
53
37
23
24
21
21
80
78
71
69
44
40
37
37
37
128
Swell 3
Height (m)
Direction
Period (s)
0.2
SSE
16
0.3
SSE
15
0.3
SSW
11
0.2
SSW
10
0.2
SSW
10
0.2
SSW
10
0.3
SSW
9
0.3
SSW
9
0.2
SSW
9
0.1
S
16
0.2
S
16
0.3
SSW
9
0.4
SW
15
0.4
SW
14
0.4
SW
11
0.4
SE
11
0.2
WSW
11
0.1
S
22
0.1
S
21
0.1
SW
21
0.2
SSW
20
0.3
SSW
20
0.3
SSW
19
0.4
SW
12
Energy kJ
25
45
22
11
10
9
16
16
8
5
20
16
55
54
30
33
11
9
9
18
38
75
74
36
Wind waves
Height (m)
Direction
Period (s)
2.5
SE
8
2.5
SE
8
2.4
SE
8
2.4
SE
8
2.5
SE
8
3
ESE
9
3.5
ESE
9
3.5
ESE
9
3.5
ESE
9
3
ESE
9
3
ESE
9
3
ESE
8
3
ESE
9
2.5
ESE
9
2.5
ESE
9
3
ESE
9
3
E
9
0.4
SW
3
0.5
W
4
0.3
WSW
4
0.3
WSW
4
Energy kJ
909
774
735
754
865
1373
1757
1814
1847
1553
1342
1333
1312
1076
1026
1294
1361
2
7
3
3
Nearest Offshore or Glassy
Rating
(10 max)
2
3
3
2
2
3
2
2
2
2
2
2
2
3
1
1
1
1
1
1
1
1
2
2
Distance (km)
184
144
140
140
140
81
140
140
140
140
107
107
81
81
81
76
76
19
19
19
19
19
0
0
Best forecast wave conditions in Overberg
Rating
(10 max)
3
2
2
3
2
2
2
2
3
3
3
3
3
2
2
3
3
3
3
3
3
3
Best forecast wave conditions in South Africa
Rating
(10 max)
4
4
3
2
4
4
4
4
4
4
4
4
4
4
4
4
4
4
4
3
4
4
3
3
Header Global
Rating
(10 max)
4
4
4
4
4
4
4
5
5
5
4
4
4
5
5
5
4
5
4
4
4
5
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)
Map placeholder

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