Arniston Surf Break

Arniston 48 hour detailed Surf Forecast

Lat Long: 34.69° S 20.23° E

Issued: 1 am 30 Jun 2026 (local time)

Forecast update in  hr  min

Today's Arniston sea temperature is
16.8° C

Slightly warmer than usual

Arniston surf forecast is for near shore open water. Breaking waves will often be smaller at less exposed spots.


How big are the waves at Arniston today (30 Jun):

  • Morning surf: Morning surf (30 Jun, local time) - 4.5ft (1.4m), 13s period with SW swell.
  • Afternoon surf: Afternoon surf (30 Jun, local time) - 4.5ft (1.3m), 12s period with SSW swell.
  • Evening surf: Evening surf (30 Jun, local time) - 4.5ft (1.3m), 12s period with SSW swell.

The current surf forecast for Arniston at 4AM is: 1.4m 13s primary swell from a Southwest direction and 1.2m 8s secondary swell from a South direction (forecast issued at 01:00am June 30). The wind direction is predicted to be cross-onshore.

Time (SAST) & DateWave HeightWave Period
Morning (30 Jun)4.5ft (1.4m)13s
Afternoon (30 Jun)4.5ft (1.3m)12s
Evening (30 Jun)4.5ft (1.3m)12s

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


Updates in  hr  min  s Forecast update imminent

Short Range Forecast

Light rain (total 2mm), mostly falling on Wed night. Very mild (max 15°C on Thu afternoon, min 11°C on Tue morning). Winds increasing (calm on Wed morning, strong winds from the WSW by Thu afternoon).

Tuesday
30
Wednesday
1
Thursday
2
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
5 PM
8 PM
11 PM
Rating
(10 max)
2
1
2
1
1
1
0
2
3
3
3
3
3
2
3
3
3
0
1
0
1
1
2
2
Swell
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Wave
Height (m)
Direction
Period (s)
2
SSW
13
1.4
SW
13
1.4
SW
13
1.4
SSW
13
1.4
SSW
12
1.3
SSW
12
1.3
SSW
12
1.3
SSW
12
1.2
SSW
12
1.2
SSW
12
1.2
SSW
12
1.3
SSW
12
1.2
SSW
14
1.6
SSW
14
1.6
SSW
13
1.5
SSW
13
1.4
SSW
12
1.2
SSW
12
1.1
SSW
12
1
SSW
12
1.9
SW
12
1.8
SW
8
1.5
SSW
8
1.2
SSW
8
Wave Graph
Metric surfscale
Energy kJ
1401
700
689
620
591
466
458
443
412
405
392
462
542
972
811
721
567
400
328
269
997
433
294
192
Wind (km/h)
10
ENE
10
NE
10
NNE
10
NE
10
E
10
ESE
15
SE
10
SE
5
SE
5
S
0
W
5
NW
5
S
5
S
5
WNW
15
WNW
20
WNW
35
WSW
35
W
40
W
40
WSW
35
W
25
W
15
WNW
Wind State
cross-on
cross-on
cross
cross-on
on
on
on
cross-on
glassy
glassy
glassy
glassy
glassy
cross-on
off
off
off
cross-off
off
cross-off
cross-off
cross-off
off
off
High Tide
3:20AM1.67m
3:49PM1.67m
3:53AM1.69m
4:22PM1.70m
4:25AM1.68m
4:54PM1.71m
Low Tide
9:38AM0.26m
9:52PM0.39m
10:08AM0.24m
10:25PM0.39m
10:38AM0.23m
10:58PM0.39m
clear
clear
clear
clear
clear
clear
clear
clear
clear
clear
part cloud
clear
part cloud
cloud
cloud
part cloud
cloud
rain showers
light rain
part cloud
clear
clear
part cloud
part cloud
<span class="translation_missing" title="translation missing: en.weather_tables.sunrise">Sunrise</span>
7:47
7:47
7:47
<span class="translation_missing" title="translation missing: en.weather_tables.sunset">Sunset</span>
5:37
5:37
5:38
 mm
1
1
Temp °C
13
12
11
12
13
13
13
13
13
13
12
12
13
14
13
12
11
13
13
14
15
15
14
13
Feels °C
10
8
8
9
10
10
9
11
12
12
11
11
12
12
11
9
7
6
5
5
6
8
9
9
Swell 1
Height (m)
Direction
Period (s)
2
SSW
13
1.4
SW
13
1.4
SW
13
1.4
SSW
13
1.4
SSW
12
1.3
SSW
12
1.3
SSW
12
1.3
SSW
12
1.2
SSW
12
1.2
SSW
12
1.2
SSW
12
1.3
SSW
12
1.2
SSW
14
1.6
SSW
14
1.6
SSW
13
1.5
SSW
13
1.4
SSW
12
1.2
SSW
12
1.1
SSW
12
1
SSW
12
0.6
ESE
8
0.7
SSW
12
1.5
SSW
8
1.2
SSW
8
Energy kJ
1401
700
689
620
591
466
458
443
412
405
392
462
542
972
811
721
567
400
328
269
53
131
294
192
Swell 2
Height (m)
Direction
Period (s)
0.1
E
10
1.2
S
8
1.2
S
8
1.1
S
8
1
S
9
1
S
9
1
S
8
0.9
SSE
8
0.9
SSE
8
0.7
SSE
7
0.8
SSW
15
0.9
SSW
14
1.2
S
11
0.2
E
9
0.2
E
9
0.4
SE
6
0.3
E
9
1.1
SSW
7
0.6
ESE
9
0.7
ESE
8
0.1
S
21
0.6
ESE
8
0.6
ESE
9
0.8
SSW
11
Energy kJ
2
199
201
169
154
150
136
112
109
49
284
350
344
6
6
8
15
105
58
72
9
54
61
148
Swell 3
Height (m)
Direction
Period (s)
0.1
E
10
0.1
E
9
0.1
E
9
0.1
E
9
0.1
E
9
0.2
E
9
0.2
E
9
0.5
S
15
0.7
SSE
8
0.2
E
9
0.2
E
9
0.2
E
9
0.2
E
9
0.4
SE
6
0.5
ESE
9
0.1
S
21
0.1
S
21
0.1
SE
7
0.7
SSW
12
0.8
ESE
9
Energy kJ
2
2
2
2
2
6
6
113
65
6
6
7
7
9
45
9
9
2
131
94
Wind waves
Height (m)
Direction
Period (s)
0.9
SSE
8
1
SW
6
0.6
W
4
1.3
SW
7
1.4
SW
7
1.9
SW
12
1.8
SW
8
0.8
W
4
0.7
W
4
Energy kJ
85
72
9
158
192
997
433
22
15
Nearest Offshore or Glassy
Rating
(10 max)
4
4
4
4
4
4
4
4
3
3
3
3
3
4
3
3
3
3
3
2
2
3
2
2
Distance (km)
76
76
76
76
81
81
81
81
0
0
0
0
0
107
0
0
0
160
149
133
133
103
0
0
Best forecast wave conditions in Overberg
Rating
(10 max)
4
4
4
4
4
4
4
4
4
4
4
4
4
4
4
4
4
3
2
2
3
3
4
Best forecast wave conditions in South Africa
Rating
(10 max)
5
4
4
4
4
4
4
4
4
4
4
4
4
4
4
4
4
4
4
2
2
3
3
4
Header Global
Rating
(10 max)
5
5
5
5
5
5
5
5
5
5
5
5
5
4
5
4
5
5
5
6
6
6
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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