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Surf Forecasts:

Arniston surf break

Arniston surfForecast / Overberg / South Africa

information circle12 Day Weather and Surf, issued 1 am Tuesday 23 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
20.9° C
 (Which is 1.1°C warmer than normal for this time of year)

Best Forecast Surf Conditions for Arniston this week:

The most powerful waves expected at Arniston in the next 12 days are 3.5m 9s and forecast to arrive on Tuesday (Dec 30) at 5AM. Winds are predicted to be onshore at the time the swell arrives.

Wave TypeTime (SAST) & Date Wave Height & Period
Next good surf (1 star+)--
Best Surf--
Most Powerful 5AM (Tue 30th Dec)11ft (3.5m) 9s

Table - best surf conditions forecast for Arniston over the next 12 days.

Updates in  hr  min  s Forecast update imminent 
12 DaysHourly
Print Table

Short Range Forecast Light rain (total 3mm), mostly falling on Wed night. Warm (max 21°C on Tue morning, min 19°C on Tue night). Mainly fresh winds.

Days 3-6 Weather Summary Light rain (total 2mm), mostly falling on Sat morning. Warm (max 21°C on Sun afternoon, min 19°C on Sat afternoon). Winds decreasing (fresh winds from the ESE on Fri afternoon, light winds from the SE by Sat night).

Tuesday
23
Wednesday
24
Thursday
25
Friday
26
Saturday
27
Sunday
28
Monday
29
AMPMNightAMPMNightAMPMNightAMPMNightAMPMNightAMPMNightAMPMNight
Rating
(10 max)
1
0
0
0
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 (?)
1.5
E
1.3
E
1
E
1.5
S
2.1
SSE
1.3
SSE
1.8
E
1.6
SE
0.9
SSW
1
SSW
1
SSW
0.9
SW
1.3
ESE
1.5
ESE
1
ESE
1.1
ESE
1.4
ESE
1.6
E
2
E
2.3
E
3.5
E
Period(s) (?)1010108987712121211666666779
Wave
Graph
(?)Metric surfscale
Energy kJ (?)450326188298645219293227218289275172119161881081452003455171592
Wind
(km/h)
20
SSW
25
SSW
25
SSE
25
ESE
35
ESE
35
E
30
E
35
SE
30
SE
30
ESE
35
ESE
25
E
25
ESE
25
SE
10
SE
20
ESE
25
ESE
25
E
30
E
35
ESE
30
E
Wind State (?)
onshore
cross-onshore
cross-shore
cross-offshore
offshore
glassy
crosscrosscross-
on		ononcross-
on		oncross-
on		onononononononononcross-
on		ononon
High Tide
/ height (m)
5:05PM
1.65
5:37AM
1.69
5:41PM
1.59
6:15AM
1.67
6:23PM
1.51
6:59AM
1.63
7:14PM
1.42
7:52AM
1.59
8:21PM
1.33
8:58AM
1.56
9:47PM
1.30
10:17AM
1.56
11:16PM
1.34
Low Tide
/ height (m)
11:04AM
0.40
11:17PM
0.25
11:42AM
0.43
11:52PM
0.30
12:25PM
0.47
12:31AM
0.37
1:16PM
0.51
1:19AM
0.46
2:19PM
0.53
2:20AM
0.54
3:36PM
0.53
3:39AM
0.60
4:59PM
0.48
Tuesday
23
Wednesday
24
Thursday
25
Friday
26
Saturday
27
Sunday
28
Monday
29
Sunrise5:22--5:22--5:24--5:24--5:24--5:26--5:26--
Sunset-7:52--7:52--7:52--7:52--7:53--7:53--7:53-
clear
part cloud
part cloud
part cloud
part cloud
rain showers
cloud
part cloud
light rain
part cloud
part cloud
part cloud
light rain
light rain
clear
clear
clear
clear
clear
clear
clear
Rain (mm)
-----2--1---11-------
Temp. °C212120192019192019202020201919202120202120
Feels °C (?)191817161513141615171516171617171817161817
  • Map Icons:
  • Break
  • Live Wave Height (m)
  • Live Wind Speed (km/h)
  • Surf Rating (10 Max)
  • Ocean Swells (m)
  • Wind Speed (km/h)
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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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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 12 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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