Arniston Surf Break

Lat Long: 34.69° S 20.23° E

Arniston 48 hour detailed Surf Forecast

Issued: 1 pm 12 Nov 2026 (local time)

Forecast update in  hr  min

Today's Arniston sea temperature is
18.7°C
0.7° 

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 (12 Nov):

  • Morning surf: Morning surf (12 Nov, local time) - 3ft (0.9m), 12s period with SW swell.
  • Afternoon surf: Afternoon surf (12 Nov, local time) - 2.5ft (0.8m), 12s period with SW swell.
  • Evening surf: Evening surf (12 Nov, local time) - 2ft (0.6m), 11s period with SW swell.

The current surf forecast for Arniston at 6PM is: 0.8m 12s primary swell from a Southwest direction and 0.6m 11s secondary swell from a East direction, 0.8m 6s secondary swell from a South direction (forecast issued at 01:00pm November 12). The wind direction is predicted to be cross-onshore.

Time (SAST) & DateWave HeightWave Period
Morning (12 Nov)3ft (0.9m)12s
Afternoon (12 Nov)2.5ft (0.8m)12s
Evening (12 Nov)2ft (0.6m)11s

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


Short Range Forecast

Mostly dry. Very mild (max 19°C on Sun morning, min 16°C on Thu night). Winds increasing (light winds from the SSW on Thu night, fresh winds from the ESE by Sat afternoon).

Thu
12
Friday
13
Saturday
14
Sun
15
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
2 AM
5 AM
Rating
(10 max)
0
0
0
0
1
2
2
2
1
0
1
1
1
1
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)
0.8
SW
12
0.8
SW
12
0.8
SW
12
0.6
SW
11
0.6
SW
11
0.9
SSW
11
0.8
SSW
11
0.8
SSW
10
0.8
SSW
10
0.9
SSW
10
1.1
SSW
10
1.4
SSW
12
1.6
SSW
12
1.7
SSW
12
1.8
SSW
14
1.8
SSW
14
1.8
SSW
14
1.8
SSW
14
1.8
SSW
14
1.7
SSW
14
1.7
SSW
14
1.6
SSW
14
1.5
SSW
14
Wave Graph
Metric surfscale
Energy kJ
167
167
164
99
96
183
146
107
125
164
226
618
739
826
1249
1355
1374
1318
1244
1139
1189
1017
879
Wind (km/h)
15
SE
20
SSE
25
S
15
S
10
SSW
10
SW
10
WSW
15
WSW
20
SW
25
SSW
20
S
10
SSE
15
SE
15
ESE
25
ESE
30
E
30
E
35
ESE
35
ESE
35
ESE
30
E
30
E
25
ESE
Wind State
cross-on
cross-on
cross-on
cross-on
cross
cross-off
cross-off
cross-off
cross-off
cross
cross
cross-on
on
on
on
on
on
on
on
on
on
on
on
High Tide
4:32PM1.64m
4:59AM1.57m
5:04PM1.54m
5:35AM1.48m
5:38PM1.43m
Low Tide
10:25AM0.40m
10:44PM0.33m
10:57AM0.49m
11:16PM0.42m
11:33AM0.60m
11:53PM0.52m
clear
clear
clear
clear
clear
clear
clear
clear
clear
clear
part cloud
cloud
cloud
part cloud
cloud
part cloud
cloud
clear
clear
clear
cloud
cloud
cloud
<span class="translation_missing" title="translation missing: en.weather_tables.sunrise">Sunrise</span>
—
—
—
—
—
—
5:26
—
—
—
—
—
—
—
5:26
—
—
—
—
—
—
—
5:26
<span class="translation_missing" title="translation missing: en.weather_tables.sunset">Sunset</span>
—
—
7:17
—
—
—
—
—
—
—
7:19
—
—
—
—
—
—
—
7:20
—
—
—
7:21
 mm
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
Temp °C
18
18
18
17
17
16
16
16
18
18
17
18
18
18
17
17
18
18
18
17
17
17
18
Feels °C
15
14
14
14
15
14
14
13
15
13
13
16
16
16
13
12
13
13
13
12
12
13
14
  • 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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