Arniston Surf Break

Arniston Surf Forecast and Surf Report

Lat Long: 34.69° S 20.23° E

Issued: 1 pm 23 Jun 2026 (local time)

Forecast update in  hr  min

Today's Arniston sea temperature is
16.6° C

Normal for this time of year

Arniston surf forecast is for near shore open water. Breaking waves will often be smaller at less exposed spots.


Arniston surf forecast from 23 Jun 2026:

  • Best quality surf: Wednesday 24 Jun, 5AM (local time) - 7ft (2.2m), 17s period, SSW swell with cross-shore winds.
  • Most powerful swell: Monday 29 Jun, 8AM (local time) - 11ft (3.5m), 14s period, SW swell with 4,942 kJ wave energy.
  • Next surfable swell (1★+): Wednesday 24 Jun, 5AM (local time) - 7ft (2.2m), 17s period with SSW swell.

Best Forecast Surf Conditions for Arniston this week:

The surf forecast for Arniston over the next 16 days: The first swell (rated 1 star or higher) is forecast to arrive on Wednesday (Jun 24) at 5AM. The primary swell is predicted to be 2.2m and 17s period. The wind is predicted to be cross-shore as the swell arrives.

The most powerful waves expected at Arniston in the next 16 days are 3.5m 14s and forecast to arrive on Monday (Jun 29) at 8AM. Winds are predicted to be cross-offshore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 1.4m 5s period and expected on Monday (Jun 29) at 5AM.

Wave TypeTime (SAST) & Date Wave Height & Period
Next good surf (1 star+) 5AM (Wed 24th Jun)7ft (2.2m) 17s
Best Surf 5AM (Wed 24th Jun)7ft (2.2m) 17s
Most Powerful 8AM (Mon 29th Jun)11ft (3.5m) 14s

Table - best surf conditions forecast for Arniston over the next 16 days.


Updates in  hr  min  s Forecast update imminent

Short Range Forecast

Light rain (total 6mm), mostly falling on Tue night. Very mild (max 19°C on Tue afternoon, min 13°C on Tue night). Winds decreasing (fresh winds from the E on Wed night, light winds from the NE by Fri morning).

Days 5-7 Weather Summary

Light rain (total 5mm), mostly falling on Sun night. Very mild (max 19°C on Sun afternoon, min 12°C on Sun night). Winds increasing (calm on Sat morning, near gales from the W by Sun night).

Tue
23
Wednesday
24
Thursday
25
Friday
26
Saturday
27
Sunday
28
Monday
29
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
Rating
(10 max)
2
3
!
0
0
0
0
2
!
1
3
3
3
3
4
3
!
!
!
4
1
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)
1.1
SW
14
1.4
SSW
18
2.5
SSW
16
2.4
SSW
16
2
SSW
15
1.5
SSW
13
1.9
ESE
7
1.8
SSW
16
2.1
SSW
16
2
SSW
16
1.6
SSW
14
1.3
SSW
14
1.3
SSW
13
1.4
SW
13
1.3
SSW
19
1.9
SSW
18
2.3
SW
16
2.4
SSW
14
2.5
SSW
14
1.3
SW
13
1.3
SSW
13
Wave Graph
Metric surfscale
Energy kJ
500
1172
2948
2900
1626
756
390
1652
2282
1956
1076
631
624
700
1288
2120
2594
2346
2598
552
578
Wind (km/h)
30
WNW
20
WSW
15
ESE
25
E
25
E
30
E
25
E
15
ESE
5
NE
15
E
10
ESE
5
NNW
15
SW
15
NW
10
N
35
NW
50
W
35
WSW
20
W
15
WNW
30
W
Wind State
off
cross-off
on
on
cross-on
cross-on
on
on
cross
cross-on
on
cross-off
cross-off
off
cross-off
off
off
cross-off
cross-off
off
cross-off
High Tide
10:50PM1.44m
11:43AM1.26m
11:52PM1.44m
12:40PM1.33m
00:44AM1.48m
1:26PM1.41m
1:29AM1.53m
2:05PM1.49m
2:09AM1.59m
2:41PM1.56m
2:46AM1.64m
3:16PM1.62m
3:20AM1.67m
Low Tide
4:23PM0.70m
5:36AM0.59m
5:37PM0.70m
6:33AM0.54m
6:38PM0.66m
7:18AM0.48m
7:27PM0.60m
7:58AM0.42m
8:08PM0.53m
8:33AM0.35m
8:45PM0.47m
9:06AM0.30m
9:19PM0.42m
9:38AM0.26m
cloud
mod rain
cloud
part cloud
cloud
part cloud
part cloud
part cloud
clear
clear
clear
clear
clear
clear
cloud
cloud
rain showers
rain showers
part cloud
part cloud
rain showers
<span class="translation_missing" title="translation missing: en.weather_tables.sunrise">Sunrise</span>
7:46
7:46
7:46
7:46
7:46
7:47
7:47
<span class="translation_missing" title="translation missing: en.weather_tables.sunset">Sunset</span>
5:36
5:36
5:36
5:36
5:37
5:37
5:37
5:37
 mm
6
4
1
1
Temp °C
19
15
14
15
15
15
16
16
17
18
17
16
17
15
14
19
14
13
13
12
11
Feels °C
14
11
12
10
9
11
12
14
17
17
16
16
16
13
12
12
4
4
5
8
6
Swell 1
Height (m)
Direction
Period (s)
1.1
SW
14
1.5
SSW
12
2.5
SSW
16
2.4
SSW
16
2
SSW
15
1.5
SSW
13
1.4
ESE
7
1.8
SSW
16
2.1
SSW
16
2
SSW
16
1.6
SSW
14
1.3
SSW
14
1.3
SSW
13
1.4
SW
13
1.3
SSW
19
1.9
SSW
18
2.3
SW
16
2.4
SSW
14
2.5
SSW
14
1.7
S
9
1.4
SSE
8
Energy kJ
500
625
2948
2900
1626
756
191
1652
2282
1956
1076
631
624
700
1288
2120
2594
2346
2598
450
290
Swell 2
Height (m)
Direction
Period (s)
0.2
SSW
22
1.4
SSW
18
0.1
S
22
1.1
SSW
12
0.2
S
8
1.9
SE
8
1.5
ESE
8
1.2
ESE
7
0.9
ESE
7
0.6
ESE
7
0.7
ESE
7
1.1
SW
13
1.3
SW
12
0.3
ESE
8
0.1
E
9
1.3
SW
13
1.3
SSW
13
Energy kJ
46
1172
9
365
6
473
260
147
70
37
47
398
463
11
2
552
578
Swell 3
Height (m)
Direction
Period (s)
0.2
E
6
0.5
SW
13
0.2
SSW
21
0.5
SSW
12
0.4
ESE
8
0.2
E
9
Energy kJ
3
84
42
83
26
6
Wind waves
Height (m)
Direction
Period (s)
0.5
W
3
1
E
4
1.2
E
6
1.9
ESE
7
2.2
SE
8
1
W
4
0.1
E
9
Energy kJ
5
36
98
390
609
29
2
Nearest Offshore or Glassy
Rating
(10 max)
4
5
4
3
5
4
4
3
5
5
1
3
3
3
4
5
5
6
5
4
4
Distance (km)
113
135
137
139
83
81
81
65
76
81
65
0
0
0
0
105
304
304
174
0
103
Best forecast wave conditions in Overberg
Rating
(10 max)
4
5
4
4
5
4
4
5
6
5
4
4
4
4
5
6
4
4
Best forecast wave conditions in South Africa
Rating
(10 max)
4
9
7
8
5
4
4
5
6
5
4
4
4
4
5
6
5
6
6
5
4
Header Global
Rating
(10 max)
5
8
9
8
5
5
5
5
6
5
5
5
5
5
9
8
5
6
6
5
5
  • 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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Information about the Arniston Surf forecast

The above surf forecast table for Arniston provides essential information for determining whether the surfing conditions will be good over the next 16 days. A general guide to surfing at Arniston can be found by selecting the local surf guide option on the grey menu. Our Arniston surf forecast is unique since it includes wave energy (power) that defines the real feel of the surf rather than just the height or the period. If you surf the same spot (Arniston) regularly then make a mental note of the wave energy from the surf forecast table each time you go. Very soon you may start to choose your surf days based on the wave energy alone combined with our forecast of favourable offshore wind conditions. Our star ratings will help here and of course you will also find the usual wave height and period predictions on our surf forecasts as well as a full break down of the swell components under our advanced users option (to reveal that, click the little Einstein character under the tide times).

Further information to help with frequently asked questions about our surf forecast for Arniston may be found under the help tab on the top menu and also by moving your mouse over the question marks on the surf forecast table itself. Please always bear in mind that the forecast is for near-shore open water and local factors at each surf break influence the actual breaking wave height, such as the beach / reef profile, water depths offshore and shelter.

Are you planning a holiday in Overberg? If you are looking for accommodation near Arniston, camping, hotels and holiday cottages in Overberg, consider staying in Hermanus which is 97 km (60 miles) away.

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