Arniston Surf Break

Lat Long: 34.69° S 20.23° E

Arniston 48 hour detailed Surf Forecast

Issued: 1 pm 05 Aug 2026 (local time)

Forecast update in  hr  min

Today's Arniston sea temperature is
16.0° C
0.1° 

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 (05 Aug):

  • Morning surf: Morning surf (05 Aug, local time) - 3.5ft (1.1m), 16s period with SSW swell.
  • Afternoon surf: Afternoon surf (05 Aug, local time) - 4.5ft (1.4m), 15s period with SW swell.
  • Evening surf: Evening surf (05 Aug, local time) - 5ft (1.5m), 15s period with SW swell.

The current surf forecast for Arniston at 5PM is: 1.4m 15s primary swell from a South-southwest direction and 0.9m 10s secondary swell from a East-southeast direction, 1.0m 8s secondary swell from a West-southwest direction (forecast issued at 01:00pm August 05). The wind direction is predicted to be cross-offshore.

Time (SAST) & DateWave HeightWave Period
Morning (05 Aug)3.5ft (1.1m)16s
Afternoon (05 Aug)4.5ft (1.4m)15s
Evening (05 Aug)5ft (1.5m)15s

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


Short Range Forecast

Moderate rain (total 12mm), heaviest on Wed night. Very mild (max 18°C on Wed afternoon, min 12°C on Thu morning). Mainly fresh winds.

Wed
5
Thursday
6
Friday
7
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)
4
4
2
3
4
3
2
3
2
3
1
2
2
1
1
1
0
!
!
!
4
Swell
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Wave
Height (m)
Direction
Period (s)
1.4
SSW
16
1.5
SSW
16
1.4
SSW
15
1.5
SW
15
1.5
SW
14
1.7
SW
14
2
SW
14
1.6
SW
13
1.3
SW
13
1.6
SSW
12
1.7
SSW
12
1.8
SSW
12
1.5
S
12
1.2
SW
15
1.9
SSW
14
1.8
SSW
15
2
SSW
15
2.1
SSW
15
2.2
SSW
15
2.2
SSW
15
2
SSW
14
Wave Graph
Metric surfscale
Energy kJ
945
1112
851
953
928
1121
1429
919
600
727
876
970
628
606
1517
1452
1833
2088
2228
2140
1670
Wind (km/h)
5
W
15
SW
25
W
30
W
25
NW
15
W
30
SW
15
WSW
20
S
15
S
20
SSE
15
SSE
15
ESE
15
ESE
20
E
20
E
25
ENE
20
ENE
15
E
10
ENE
10
WNW
Wind State
glassy
cross-off
cross-off
off
off
cross-off
cross-off
cross-off
cross
cross
cross-on
cross-on
on
on
on
cross-on
cross-on
cross-on
on
cross-on
off
High Tide
7:29PM1.60m
8:08AM1.31m
8:41PM1.47m
9:49AM1.24m
10:26PM1.42m
Low Tide
1:02PM0.47m
1:59AM0.51m
2:03PM0.61m
3:25AM0.59m
3:44PM0.70m
clear
part cloud
clear
clear
clear
cloud
mod rain
light rain
light rain
light rain
light rain
cloud
part cloud
clear
part cloud
cloud
cloud
clear
clear
clear
clear
<span class="translation_missing" title="translation missing: en.weather_tables.sunrise">Sunrise</span>
7:28
7:28
<span class="translation_missing" title="translation missing: en.weather_tables.sunset">Sunset</span>
6:00
6:00
6:01
 mm
6
2
2
1
1
Temp °C
15
16
18
17
16
14
13
13
12
12
12
12
13
13
13
13
13
15
15
15
14
Feels °C
15
14
13
11
11
10
8
10
8
9
8
8
9
9
8
8
8
12
13
14
13
  • 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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