Arniston surf break

Arniston surfForecast / Overberg / South Africa

information circle48hr Weather and Surf, issued 7 pm Sunday 10 May 2026 SAST
Forecast update in hr  min  s Forecast update imminent
Arniston surf forecast is for near shore open water. Breaking waves will often be smaller at less exposed spots.
Today's Arniston sea temperature is
18.0° C
(Which is normal for this time of year)

How big are the waves at Arniston today?

The current surf forecast for Arniston at 1AM is: 2.4m 12s primary swell from a Southwest direction and 0.6m 11s secondary swell from a Southeast direction (forecast issued at 07:00pm May 10). An open ocean swell of 1.1m 5s is not directed at the surf break. The wind direction is predicted to be offshore and the swell rating is 11.

Time (SAST) & DateWave HeightWave Period
Morning (11 May)5ft (1.6m)12s
Afternoon (11 May)10ft (3.0m)14s
Evening (11 May)11ft (3.5m)14s

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


Updates in  hr  min  s Forecast update imminent

Short Range Forecast

Heavy rain (total 34mm), heaviest during Mon night. Very mild (max 18°C on Mon afternoon, min 12°C on Sun night). Mainly gales.

Sun
10
Monday
11
Tuesday
12
Wed
13
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
8 AM
11 AM
2 PM
Rating
(10 max)
0
0
!
!
2
0
0
0
0
0
0
0
!
!
!
!
0
!
0
0
0
!
!
!
Swell
Height Map
Height MapHeight MapHeight Map
Height MapHeight MapHeight Map
Height MapHeight MapHeight Map
Height MapHeight MapHeight Map
Wave
Height (m)
Direction
Period (s)
1.9
WSW
9
2.5
SW
10
3
SW
12
2.4
SW
12
1.5
SSW
12
1.5
SW
12
1.8
SW
13
3
WSW
13
3.5
SW
14
3.5
SW
14
2.4
SSW
13
2.2
WSW
14
3
SW
13
4
SW
13
2.5
SSW
13
2.5
SSW
13
2.5
SW
13
2.4
SSW
12
3
SW
12
3
SW
12
3
SW
12
3
SSW
12
4
SW
12
3
SSW
13
Wave Graph
Metric surfscale
Energy kJ
646
1351
2089
1711
597
583
1092
3584
4729
4435
1920
1805
3292
5580
2274
2385
2304
1694
2219
2408
2584
2765
5168
2796
Wind (km/h)
55
W
55
WSW
50
W
40
WNW
25
NNW
50
NNW
75
NW
70
W
70
W
60
W
50
W
45
W
45
WSW
40
W
35
W
40
WSW
45
W
45
W
45
W
50
W
50
W
45
W
40
W
40
WSW
off
cross-off
off
off
cross-off
cross-off
off
off
off
off
cross-off
cross-off
cross-off
cross-off
cross-off
cross-off
cross-off
cross-off
cross-off
cross-off
cross-off
cross-off
cross-off
cross-off
High Tide
10:28PM1.39m
10:58AM1.29m
11:27PM1.53m
11:59AM1.43m
00:15AM1.69m
12:48PM1.57m
Low Tide
3:44PM0.66m
4:54AM0.66m
4:58PM0.59m
5:53AM0.49m
5:55PM0.48m
6:40AM0.31m
light rain
light rain
rain showers
rain showers
cloud
light rain
light rain
light rain
light rain
light rain
light rain
light rain
mod rain
light rain
light rain
light rain
clear
clear
part cloud
clear
part cloud
part cloud
part cloud
cloud
<span class="translation_missing" title="translation missing: en.weather_tables.sunrise">Sunrise</span>
7:22
7:22
7:22
<span class="translation_missing" title="translation missing: en.weather_tables.sunset">Sunset</span>
5:49
5:47
5:46
5:45
4
1
2
1
1
2
5
3
2
2
1
9
2
1
2
Temp °C
14
12
13
13
12
13
17
18
18
17
17
16
15
15
16
16
17
16
16
16
15
15
16
15
3
0
2
4
6
3
3
6
6
6
8
8
8
8
10
10
9
8
7
6
5
6
8
7
Swell 1
Height (m)
Direction
Period (s)
1.1
SE
11
0.9
SE
11
0.8
SE
11
2.4
SW
12
1.5
SSW
12
1.5
SW
12
1.8
SW
13
0.5
S
9
0.4
SE
12
0.4
SE
12
2.4
SSW
13
2.2
SSW
13
0.3
SE
11
3
SSW
13
2.5
SSW
13
2.4
SSW
12
0.2
SSE
11
0.3
SSE
11
3
SSW
13
3
SSW
13
Energy kJ
263
194
165
1711
593
583
1092
41
52
52
1920
1725
20
3136
2274
1694
12
22
2967
2796
Swell 2
Height (m)
Direction
Period (s)
0.8
SW
12
0.4
SSW
12
0.6
SE
11
1.4
SW
12
1
S
9
0.7
S
9
0.4
SE
12
0.4
S
9
0.3
SE
12
0.3
SE
12
0.3
SE
12
0.1
SE
12
Energy kJ
181
58
90
597
160
78
37
25
24
23
23
5
Swell 3
Height (m)
Direction
Period (s)
0.2
SSE
15
0.2
SSE
15
0.4
SE
13
0.8
SSW
14
0.8
SSW
14
0.4
SE
10
0.4
SE
10
Energy kJ
22
21
45
261
257
36
24
Wind waves
Height (m)
Direction
Period (s)
1.9
WSW
9
2.5
SW
10
3
SW
12
1.1
WNW
5
0.8
NW
4
0.7
NNW
4
1.5
NW
5
3
WSW
13
3.5
SW
14
3.5
SW
14
2.2
WSW
14
2.2
WSW
14
3
SW
13
4
SW
13
1
W
4
2.5
SSW
13
2.5
SW
13
1.2
WSW
5
3
SW
12
3
SW
12
3
SW
12
3
SSW
12
4
SW
12
0.9
WSW
4
Energy kJ
646
1351
2089
54
19
13
108
3584
4729
4435
1805
1805
3292
5580
38
2385
2304
66
2219
2408
2584
2765
5168
31
Nearest Offshore or Glassy
Rating
(10 max)
1
2
2
2
1
1
3
2
3
1
9
2
7
4
6
6
4
4
4
4
4
4
4
4
Distance (km)
1031
438
938
1031
208
208
737
733
874
438
261
921
183
167
161
113
168
168
168
168
304
306
306
306
Best forecast wave conditions in Overberg
Rating
(10 max)
6
6
Best forecast wave conditions in South Africa
Rating
(10 max)
3
2
3
3
3
4
4
4
3
1
9
2
9
5
6
9
8
6
5
5
4
9
4
4
Header Global
Rating
(10 max)
9
8
6
5
5
5
5
4
5
5
5
5
9
9
9
9
9
9
9
8
9
9
7
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

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