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Surf Forecasts:
Arniston surfForecast / Overberg / South Africa
48hr Weather and Surf, issued 1 am Friday 17 Apr 2026 SASTForecast 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
20.2° C
(Which is 2.0°C warmer than normal for this time of year)How big are the waves at Arniston today?
The current surf forecast for Arniston at 5AM is: 1.3m 13s primary swell from a South-southwest direction and 0.3m 8s secondary swell from a East direction (forecast issued at 01:00am April 17). The wind direction is predicted to be offshore and the swell rating is 3.
| Time (SAST) & Date | Wave Height | Wave Period |
|---|---|---|
| Morning (17 Apr) | 4.5ft (1.3m) | 12s |
| Afternoon (17 Apr) | 5ft (1.6m) | 12s |
| Evening (17 Apr) | 3.5ft (1.1m) | 11s |
Table - waves today at Arniston. (Swell directed towards the surf break)
Updates in hr min s Forecast update imminent
Friday 17 | Saturday 18 | Sunday 19 | ||||||||||||||||||||||
| 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 | 5 PM | 8 PM | |
Rating (10 max) | ||||||||||||||||||||||||
Swell Height Map |  |    |    |    | ||||||||||||||||||||
| Wave Height (m) & direction (?) | ||||||||||||||||||||||||
| Period(s) (?) | 13 | 13 | 13 | 12 | 12 | 12 | 12 | 11 | 11 | 16 | 15 | 11 | 11 | 11 | 10 | 10 | 10 | 13 | 9 | 12 | 12 | 12 | 12 | 12 |
Wave (?)Graph  | ||||||||||||||||||||||||
 kJ (?) | 721 | 649 | 555 | 513 | 480 | 723 | 343 | 320 | 369 | 318 | 377 | 450 | 617 | 511 | 445 | 325 | 269 | 154 | 159 | 174 | 448 | 655 | 710 | 1573 |
Wind (km/h) | ||||||||||||||||||||||||
| Wind State (?) onshore cross-onshore cross-shore cross-offshore offshore glassy | cross- off | off | off | cross- off | cross- off | cross- off | off | off | off | off | off | off | off | off | off | off | off | off | cross- off | cross- off | cross- off | off | off | cross- off |
High Tide / height (m) | 2:50AM 2.10 | 3:16PM 1.93 | 3:27AM 2.12 | 3:54PM 1.93 | 4:06AM 2.07 | 4:33PM 1.86 | ||||||||||||||||||
Low Tide / height (m) | 8:39PM 0.07 | 9:09AM -0.08 | 9:16PM 0.04 | 9:46AM -0.09 | 9:54PM 0.07 | 10:24AM -0.02 | ||||||||||||||||||
Friday 17 | Saturday 18 | Sunday 19 | ||||||||||||||||||||||
| Sunrise | - | - | - | 7:03 | - | - | - | - | - | - | - | 7:03 | - | - | - | - | - | - | - | 7:05 | - | - | - | - |
| Sunset | - | - | - | - | - | - | 6:13 | - | - | - | - | - | - | - | 6:12 | - | - | - | - | - | - | - | 6:10 | - |
 | |  |  |  | |  |  |  | | |  | | | | | | | | | | | | | |
Rain (mm) | - | - | - | - | - | - | 6 | 1 | 1 | - | 1 | 1 | 1 | - | - | - | - | - | - | - | - | - | 3 | 1 |
| Temp. °C | 16 | 16 | 16 | 15 | 18 | 15 | 14 | 15 | 15 | 15 | 14 | 14 | 16 | 18 | 19 | 17 | 16 | 16 | 15 | 15 | 19 | 20 | 16 | 15 |
| Feels °C (?) | 15 | 14 | 14 | 13 | 15 | 5 | 7 | 8 | 8 | 9 | 9 | 10 | 12 | 14 | 14 | 12 | 11 | 12 | 12 | 10 | 12 | 11 | 9 | 5 |
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Live Wave Height (m)
Live Wind Speed (km/h)
Surf Rating (10 Max)
Ocean Swells (m)- Wind Speed (km/h)
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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