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Surf Forecasts:

Arniston surf break

Arniston surfForecast / Overberg / South Africa

information circle48hr Weather and Surf, issued 7 am Sunday 21 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
20.8° 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 10AM is: 1.2m 12s primary swell from a Southwest direction and 1.2m 12s secondary swell from a South-southwest direction, 2.1m 7s secondary swell from a East direction (forecast issued at 07:00am December 21). The wind direction is predicted to be onshore.

Time (SAST) & DateWave HeightWave Period
Morning (21 Dec)4.5ft (1.3m)12s
Afternoon (21 Dec)8ft (2.4m)7s
Evening (21 Dec)8ft (2.4m)8s

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

Updates in  hr  min  s Forecast update imminent 
12 DaysHourly
Print Table
Sunday
21
Monday
22
Tuesday
23
Wed
24
5 AM8 AM11 AM2 PM5 PM8 PM11 PM2 AM5 AM8 AM11 AM2 PM5 PM8 PM11 PM2 AM5 AM8 AM11 AM2 PM5 PM8 PM11 PM2 AM
Rating
(10 max)
0
0
0
0
0
0
0
0
0
!
1
0
0
1
1
3
2
1
0
0
0
0
0
0
Swell
Height Map
See all maps
Wave Height (m) & direction (?)
1.4
SSW
1.3
SSW
2.2
E
2.3
E
2.4
ESE
2.4
ESE
2.3
ESE
2.2
ESE
2.1
ESE
2.3
ESE
1.9
ESE
2.1
ESE
2.1
ESE
2
ESE
2
ESE
1.9
ESE
1.8
ESE
1.6
ESE
1.6
ESE
1.5
E
1.4
ESE
1.3
ESE
1.2
E
1.1
E
Period(s) (?)12127778888899999101010101010101010
Wave
Graph
(?)Metric surfscale
Energy kJ (?)557437434524607640653646606755506671686616644660624512523450394335273226
Wind
(km/h)
35
E
40
E
40
E
40
E
40
ESE
35
E
30
E
25
ESE
25
ESE
20
ESE
15
SE
15
SSE
25
SSE
15
S
15
SSW
15
SW
20
SW
25
SSW
25
SSW
25
SSW
25
SSW
20
S
15
SSE
15
ESE
Wind State (?)
onshore
cross-onshore
cross-shore
cross-offshore
offshore
glassy
oncross-
on		onononononononononcross-
on		cross-
on		cross-
on		crosscross-
off		cross-
off		crosscrosscrosscrosscrosscross-
on		on
High Tide
/ height (m)
3:59PM
1.72
4:28AM
1.70
4:31PM
1.69
5:02AM
1.70
5:05PM
1.65
Low Tide
/ height (m)
9:57AM
0.37
10:14PM
0.21
10:30AM
0.38
10:45PM
0.22
11:04AM
0.40
11:17PM
0.25
Sunday
21
Monday
22
Tuesday
23
Wed
24
Sunrise-5:22-------5:22-------5:22------
Sunset----7:51-------7:51-------7:52---
clear
clear
clear
clear
part cloud
cloud
cloud
cloud
cloud
cloud
clear
clear
part cloud
cloud
cloud
cloud
part cloud
cloud
cloud
part cloud
part cloud
part cloud
part cloud
rain showers
Rain (mm)
-----------------------1
Temp. °C202021212121212021212223222221222121212121202019
Feels °C (?)161516161617191821212324212321222019191818181918
  • 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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