Arniston Surf Break

Lat Long: 34.69° S 20.23° E

Arniston 48 hour detailed Surf Forecast

Issued: 7 pm 08 Aug 2026 (local time)

Forecast update in  hr  min

Today's Arniston sea temperature is
15.8° C
0.0° 

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 (09 Aug):

  • Morning surf: Morning surf (09 Aug, local time) - 6ft (1.8m), 13s period with S swell.
  • Afternoon surf: Afternoon surf (09 Aug, local time) - 7.5ft (2.3m), 8s period with S swell.
  • Evening surf: Evening surf (09 Aug, local time) - 6.5ft (2.0m), 8s period with S swell.

The current surf forecast for Arniston at 2AM is: 1.5m 13s primary swell from a South-southwest direction and 1.3m 13s secondary swell from a Southwest direction (forecast issued at 07:00pm August 08). The wind direction is predicted to be cross-shore.

Time (SAST) & DateWave HeightWave Period
Morning (09 Aug)6ft (1.8m)13s
Afternoon (09 Aug)7.5ft (2.3m)8s
Evening (09 Aug)6.5ft (2.0m)8s

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


Short Range Forecast

Moderate rain (total 10mm), heaviest on Sat night. Very mild (max 14°C on Mon night, min 12°C on Sat night). Winds increasing (light winds from the SSW on Sat night, strong winds from the E by Tue afternoon).

Sat
8
Sunday
9
Monday
10
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)
!
!
!
3
1
1
0
0
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
Wave
Height (m)
Direction
Period (s)
2.3
SSW
15
2.3
SSW
14
2.1
SSW
14
1.5
SSW
13
1.6
SSW
13
1.8
S
13
2.3
S
7
2.4
S
8
2.2
S
8
2
S
8
1.9
SSE
8
1.8
SSE
8
2.1
S
11
2.1
S
10
2
S
10
2.2
S
10
2.3
S
10
2.3
SSE
10
1.7
S
14
Wave Graph
Metric surfscale
Energy kJ
2274
2151
1638
670
750
1087
569
705
628
501
461
407
1068
955
755
938
1047
999
1162
Wind (km/h)
30
SW
25
SW
15
SW
10
SSW
25
SSW
35
S
40
S
40
S
30
S
30
S
25
S
25
S
30
S
25
SSE
30
SSE
30
SE
30
SE
35
ESE
30
E
Wind State
cross-off
cross-off
cross-off
cross
cross
cross
cross-on
cross-on
cross-on
cross
cross-on
cross-on
cross-on
cross-on
cross-on
cross-on
on
on
on
High Tide
00:04AM1.51m
12:57PM1.48m
1:12AM1.65m
1:50PM1.68m
Low Tide
5:44PM0.65m
6:42AM0.43m
7:05PM0.49m
7:40AM0.27m
8:02PM0.32m
light rain
light rain
light rain
light rain
light rain
light rain
light rain
light rain
cloud
cloud
cloud
clear
cloud
part cloud
part cloud
part cloud
part cloud
clear
cloud
<span class="translation_missing" title="translation missing: en.weather_tables.sunrise">Sunrise</span>
7:26
7:24
<span class="translation_missing" title="translation missing: en.weather_tables.sunset">Sunset</span>
6:01
6:02
6:04
 mm
1
1
1
4
1
1
1
1
Temp °C
14
12
12
12
13
12
13
13
13
13
13
13
13
13
13
13
13
13
14
Feels °C
8
7
9
9
7
4
4
4
5
6
6
6
6
7
6
6
6
5
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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