Arniston Surf Break

Lat Long: 34.69° S 20.23° E

Arniston 48 hour detailed Surf Forecast

Issued: 7 am 24 Aug 2026 (local time)

Forecast update in  hr  min

Today's Arniston sea temperature is
15.7°C
0.3° 

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 (24 Aug):

  • Morning surf: Morning surf (24 Aug, local time) - 3.5ft (1.0m), 11s period with SSW swell.
  • Afternoon surf: Afternoon surf (24 Aug, local time) - 3ft (0.9m), 11s period with SSW swell.
  • Evening surf: Evening surf (24 Aug, local time) - 5ft (1.6m), 14s period with SSW swell.

The current surf forecast for Arniston at 12PM is: 0.9m 11s primary swell from a South-southwest direction and 0.5m 12s secondary swell from a Southwest direction (forecast issued at 07:00am August 24). The wind direction is predicted to be cross-onshore.

Time (SAST) & DateWave HeightWave Period
Morning (24 Aug)3.5ft (1.0m)11s
Afternoon (24 Aug)3ft (0.9m)11s
Evening (24 Aug)5ft (1.6m)14s

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


Short Range Forecast

Some drizzle, heaviest during Tue night. Very mild (max 16°C on Wed afternoon, min 11°C on Mon morning). Winds increasing (calm on Mon morning, strong winds from the E by Wed afternoon).

Monday
24
Tuesday
25
Wednesday
26
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
2
2
0
1
2
1
3
3
3
3
1
0
0
0
0
0
0
0
0
0
0
0
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)
1.1
SW
12
1
SSW
12
0.9
SSW
10
0.9
SSW
11
0.9
SSW
14
1.4
SSW
14
1.6
SSW
14
1.7
SSW
14
1.6
SSW
15
1.4
SW
14
1.6
SSW
15
1.5
SSW
15
1.5
SSW
14
1.1
SSW
14
1.2
SSW
13
1.1
SSW
13
1.4
S
13
1.8
SE
6
2.2
ESE
6
2.3
ESE
7
2.5
ESE
7
3
ESE
7
3
E
8
Wave Graph
Metric surfscale
Energy kJ
319
289
158
176
293
834
996
1130
1087
811
1209
974
886
485
507
451
630
214
375
459
659
813
1075
Wind (km/h)
5
W
5
WNW
0
S
10
SSE
15
SSE
10
SE
10
SE
10
E
10
E
10
E
10
E
15
ESE
20
ESE
20
ESE
20
E
25
E
35
E
40
E
45
E
45
E
50
E
50
E
50
E
Wind State
cross-off
off
glassy
cross-on
cross-on
cross-on
cross-on
on
on
on
cross-on
on
on
on
cross-on
cross-on
on
on
on
on
cross-on
cross-on
cross-on
High Tide
1:43PM1.46m
1:45AM1.53m
2:11PM1.61m
2:15AM1.65m
2:38PM1.75m
Low Tide
7:36AM0.51m
7:51PM0.56m
8:03AM0.37m
8:19PM0.42m
8:29AM0.25m
8:47PM0.30m
clear
clear
clear
clear
clear
clear
clear
clear
clear
clear
clear
clear
clear
cloud
cloud
cloud
light rain
cloud
cloud
cloud
part cloud
part cloud
part cloud
<span class="translation_missing" title="translation missing: en.weather_tables.sunrise">Sunrise</span>
7:09
7:07
7:05
<span class="translation_missing" title="translation missing: en.weather_tables.sunset">Sunset</span>
6:14
6:15
6:15
 mm
1
Temp °C
11
11
13
14
13
13
12
12
12
12
13
14
14
15
15
15
14
14
15
16
16
15
15
Feels °C
10
10
13
13
11
12
10
11
11
11
11
12
11
12
11
11
8
7
7
8
8
7
7
  • 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
How to use the Wavefinder 

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