Arniston surf break

Arniston surfForecast / Overberg / South Africa

information circle48hr Weather and Surf, issued 7 am Saturday 13 Dec 2025 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
20.5° C
(Which is 1.0°C warmer than normal for this time of year)


How big are the waves at Arniston today?

The current surf forecast for Arniston at 9AM is: 3.5m 14s primary swell from a Southwest direction and 2.4m 14s secondary swell from a South-southwest direction, 0.4m 10s secondary swell from a East direction (forecast issued at 07:00am December 13). The wind direction is predicted to be cross-offshore and the swell rating is 11.

Time (SAST) & DateWave HeightWave Period
Morning (13 Dec)11ft (3.5m)14s
Afternoon (13 Dec)7ft (2.1m)13s
Evening (13 Dec)5ft (1.6m)13s

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

Updates in  hr  min  s Forecast update imminent
Saturday
13
Sunday
14
Monday
15
Tue
16
5AM8AM11AM2PM5PM8PM11PM2AM5AM8AM11AM2PM5PM8PM11PM2AM5AM8AM11AM2PM5PM8PM11PM2AM
Rating
(10 max)
!
!
!
!
2
3
4
4
3
3
2
1
1
2
3
3
3
3
2
0
1
2
2
1
Swell
Height Map
Wave Height (m) & direction (?)
3.5
SW
3.5
SW
3.5
SW
2.2
SSW
1.8
SSW
1.7
SSW
1.6
SSW
1.6
SSW
1.6
SSW
1.7
SSW
1.6
SSW
1.5
SSW
1.4
SSW
1.7
SSW
1.7
SSW
1.7
SSW
1.8
SSW
1.8
SSW
1.8
SSW
1.8
SSW
1.7
SSW
1.7
SSW
1.6
SSW
1.5
SSW
Period(s) (?)121413131314131312121212121212121212121212121313
Wave
Graph
(?)Metric surfscale
Energy kJ (?)298744353567159710861004799838787787692605569787890890965949934949857849809725
Wind
(km/h)
35
WSW
30
WSW
30
WSW
30
SW
30
SW
20
SW
10
W
10
NNW
10
NNW
5
NW
10
S
20
SSW
15
S
10
SSW
5
N
5
NW
5
N
5
NNW
10
SE
20
S
20
S
5
SE
10
ENE
10
NE
Wind State (?)
onshore
cross-onshore
cross-shore
cross-offshore
offshore
glassy
cross-
off
cross-
off
cross-
off
cross-
off
cross-
off
cross-
off
cross-
off
cross-
off
cross-
off
offcrosscrosscrosscrossglassglasscross-
off
glassoncross-
on
crosscross-
on
cross-
on
cross-
on
High Tide
/ height (m)
10:31AM
1.42
11:21PM
1.23
11:32AM
1.44
12:20AM
1.30
12:23PM
1.49
1:04AM
1.39
Low Tide
/ height (m)
5:20PM
0.63
5:13AM
0.71
6:16PM
0.56
6:14AM
0.67
6:59PM
0.48
Saturday
13
Sunday
14
Monday
15
Tue
16
Sunrise-5:18-------5:18-------5:18------
Sunset----7:45-------7:46-------7:46---
cloud
cloud
part cloud
clear
clear
clear
part cloud
clear
part cloud
clear
clear
clear
clear
clear
clear
clear
clear
clear
clear
clear
clear
clear
clear
clear
Rain (mm)
------------------------
Temp. °C181717181817171615151718181818171717192020201919
Feels °C (?)101010111112141313131414151718171717181718201919
  • 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

Latest Updates

FREE! Surf-Forecast.com widget for your website

The surf report / weather widget below is available to embed on third party websites free of charge and provides a summary of our Arniston surf forecast. Simply grab the html code snippet that we provide and paste it into your own site. You can choose your preferred language and metric/imperial units for the surf forecast feed to suit users of your site. Click here to get the code.


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