Arniston Surf Break

Lat Long: 34.69° S 20.23° E

Arniston 48 hour detailed Surf Forecast

Issued: 7 am 27 Aug 2026 (local time)

Forecast update in  hr  min

Today's Arniston sea temperature is
16.1°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 (27 Aug):

  • Morning surf: Morning surf (27 Aug, local time) - 4.5ft (1.4m), 12s period with S swell.
  • Afternoon surf: Afternoon surf (27 Aug, local time) - 4.5ft (1.4m), 12s period with S swell.
  • Evening surf: Evening surf (27 Aug, local time) - 5ft (1.6m), 9s period with ESE swell.

The current surf forecast for Arniston at 2PM is: 1.4m 12s primary swell from a South direction and 1.8m 8s secondary swell from a East-southeast direction (forecast issued at 07:00am August 27). The wind direction is predicted to be glassy and the swell rating is 3.

Time (SAST) & DateWave HeightWave Period
Morning (27 Aug)4.5ft (1.4m)12s
Afternoon (27 Aug)4.5ft (1.4m)12s
Evening (27 Aug)5ft (1.6m)9s

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


Short Range Forecast

Some drizzle, heaviest during Sat night. Warm (max 23°C on Thu afternoon, min 13°C on Sat night). Winds increasing (calm on Fri morning, fresh winds from the SW by Sat afternoon).

Thursday
27
Friday
28
Saturday
29
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)
!
3
4
3
2
3
3
3
2
3
3
2
2
2
2
2
2
2
1
2
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)
2.5
E
8
1.5
S
12
1.4
S
12
1.4
S
12
1.4
S
12
1.6
ESE
9
1.6
ESE
9
1.3
S
11
1.2
S
11
1.1
S
11
1.2
S
11
1
S
11
1
S
11
1.1
E
9
1.1
SSE
13
1
SSE
12
1
SSE
12
0.8
SSE
11
0.7
SSE
11
0.6
SW
16
1
SW
11
0.6
SSE
11
1.2
SSW
9
Wave Graph
Metric surfscale
Energy kJ
935
614
535
526
508
423
418
411
344
289
338
231
223
203
444
308
293
164
126
193
216
100
221
Wind (km/h)
20
NE
15
NE
5
NNE
5
SE
20
SW
15
WSW
5
NW
10
WSW
15
WSW
10
W
5
W
10
S
10
S
10
ENE
10
NNE
10
SW
15
WSW
15
WNW
20
W
15
W
40
SW
30
SW
30
SW
Wind State
cross-on
cross
cross-off
glassy
cross-off
cross-off
cross-off
cross-off
cross-off
off
glassy
cross
cross
cross-on
cross
cross-off
cross-off
off
cross-off
cross-off
cross-off
cross-off
cross-off
High Tide
3:05PM1.87m
3:13AM1.82m
3:32PM1.96m
3:42AM1.86m
3:59PM2.01m
Low Tide
8:54AM0.15m
9:14PM0.19m
9:20AM0.08m
9:41PM0.12m
9:46AM0.05m
10:10PM0.08m
clear
clear
cloud
part cloud
part cloud
part cloud
cloud
cloud
clear
clear
clear
part cloud
cloud
cloud
cloud
cloud
cloud
cloud
cloud
cloud
cloud
light rain
cloud
<span class="translation_missing" title="translation missing: en.weather_tables.sunrise">Sunrise</span>
7:05
7:03
7:01
<span class="translation_missing" title="translation missing: en.weather_tables.sunset">Sunset</span>
6:15
6:16
6:16
 mm
1
Temp °C
14
16
20
23
19
16
16
15
15
14
16
16
15
15
15
15
14
14
16
18
14
13
14
Feels °C
11
13
18
22
15
14
15
13
13
13
16
14
13
14
14
14
12
12
13
16
7
7
8
  • 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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