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Surf Forecasts:

Arniston surf break

Arniston surfForecast / Overberg / South Africa

information circle48hr Weather and Surf, issued 7 pm Sunday 18 Jan 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
21.6° C
 (Which is slightly warmer than usual)

How big are the waves at Arniston today?

The current surf forecast for Arniston at 12AM is: 1.7m 12s primary swell from a South-southwest direction and 0.4m 10s secondary swell from a East-southeast direction (forecast issued at 07:00pm January 18). The wind direction is predicted to be cross-onshore.

Time (SAST) & DateWave HeightWave Period
Morning (19 Jan)--
Afternoon (19 Jan)6.5ft (2.0m)12s
Evening (19 Jan)6ft (1.8m)12s

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

Updates in  hr  min  s Forecast update imminent 
12 DaysHourly
Print Table
Sunday
18
Monday
19
Tuesday
20
Wednesday
21
5 PM8 PM11 PM2 AM5 AM8 AM11 AM2 PM5 PM8 PM11 PM2 AM5 AM8 AM11 AM2 PM5 PM8 PM11 PM2 AM5 AM8 AM11 AM2 PM
Rating
(10 max)
2
1
1
2
3
3
2
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
Swell
Height Map
See all maps
Wave Height (m) & direction (?)
2
SSW
1.8
SSW
1.7
SSW
1.6
SSW
1.5
SSW
1.4
SSW
1.4
SSW
1.3
SSW
1.2
SSW
1.1
SSW
1.1
SSW
0.8
SSW
0.9
SW
0.9
SW
0.9
SW
0.9
SW
0.6
SSW
1
SSW
1.1
SSW
1.1
SSW
1.1
SSW
1.1
SSW
1.1
SSW
1.1
SSW
Period(s) (?)121212121212111111111111101011111413131312121212
Wave
Graph
(?)Metric surfscale
Energy kJ (?)1132970847725633521469373313270270146151134163166143368384373350333328328
Wind
(km/h)
25
SSW
15
S
10
SSE
5
SE
5
E
0
E
10
SSE
15
SSE
15
SSE
15
SSE
20
SE
25
SE
25
ESE
25
ESE
30
ESE
35
ESE
35
ESE
35
E
35
E
35
E
35
E
35
E
35
E
30
ESE
Wind State (?)
onshore
cross-onshore
cross-shore
cross-offshore
offshore
glassy
crosscross-
on		cross-
on		cross-
on		glassglasscross-
on		cross-
on		cross-
on		cross-
on		ononononononononcross-
on		cross-
on		cross-
on		cross-
on		onon
High Tide
/ height (m)
3:18PM
1.75
3:46AM
1.78
3:49PM
1.79
4:16AM
1.85
4:20PM
1.81
4:46AM
1.89
Low Tide
/ height (m)
9:35PM
0.16
9:50AM
0.29
10:03PM
0.11
10:21AM
0.24
10:31PM
0.09
10:53AM
0.23
Sunday
18
Monday
19
Tuesday
20
Wednesday
21
Sunrise-----5:45-------5:46-------5:47--
Sunset7:53-------7:52-------7:52-------
clear
clear
clear
part cloud
part cloud
clear
clear
clear
clear
clear
cloud
part cloud
clear
clear
clear
clear
clear
clear
clear
clear
clear
clear
clear
clear
Rain (mm)
------------------------
Temp. °C191818181717181919191918181920202019191919192020
Feels °C (?)141516171617161616171715151616151413131414141515
  • 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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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.

View detailed surf forecast for Arniston at:
surf-forecast.com

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