Using Surf-Forecast’s Historical Surf Data To Find The Most Consistent Waves On Earth
Using our statistical data for 7000 spots dating back to 2006, we can find those waves that break the most, with the best winds.
Surf Forecasts:
Arniston surfForecast / Overberg / South Africa
48hr Weather and Surf, issued 1 pm Monday 22 Dec 2025 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
20.9° C
(Which is 1.1°C warmer than normal for this time of year)How big are the waves at Arniston today?
The current surf forecast for Arniston at 3PM is: 2.1m 9s primary swell from a East-southeast direction and 0.8m 10s secondary swell from a South direction (forecast issued at 01:00pm December 22). The wind direction is predicted to be cross-onshore.
| Time (SAST) & Date | Wave Height | Wave Period |
|---|---|---|
| Morning (22 Dec) | 7.5ft (2.3m) | 8s |
| Afternoon (22 Dec) | 7ft (2.1m) | 9s |
| Evening (22 Dec) | 6ft (1.9m) | 9s |
Table - waves today at Arniston. (Swell directed towards the surf break)
Updates in hr min s Forecast update imminent
Monday 22 | Tuesday 23 | Wednesday 24 | Thursday 25 | |||||||||||||||||||||
| 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 | 11 PM | 2 AM | 5 AM | 8 AM | |
Rating (10 max) | ||||||||||||||||||||||||
Swell Height Map |    |    |    |    | ||||||||||||||||||||
| Wave Height (m) & direction (?) | ||||||||||||||||||||||||
| Period(s) (?) | 9 | 9 | 9 | 9 | 9 | 10 | 10 | 10 | 10 | 10 | 10 | 10 | 10 | 9 | 9 | 9 | 9 | 6 | 7 | 7 | 6 | 8 | 7 | 7 |
Wave (?)Graph  | ||||||||||||||||||||||||
 kJ (?) | 603 | 686 | 603 | 561 | 549 | 598 | 665 | 615 | 635 | 386 | 319 | 267 | 221 | 175 | 142 | 299 | 378 | 229 | 479 | 424 | 221 | 226 | 360 | 408 |
Wind (km/h) | ||||||||||||||||||||||||
| Wind State (?) onshore cross-onshore cross-shore cross-offshore offshore glassy | on | cross- on | cross- on | cross- on | cross | cross | cross | cross | cross | cross | cross | cross | cross | cross- on | on | on | on | on | on | on | cross- on | cross- on | cross- on | cross- on |
High Tide / height (m) | 4:31PM 1.69 | 5:02AM 1.70 | 5:05PM 1.65 | 5:37AM 1.69 | 5:41PM 1.59 | 6:15AM 1.67 | ||||||||||||||||||
Low Tide / height (m) | 10:30AM 0.38 | 10:45PM 0.22 | 11:04AM 0.40 | 11:17PM 0.25 | 11:42AM 0.43 | 11:52PM 0.30 | ||||||||||||||||||
Monday 22 | Tuesday 23 | Wednesday 24 | Thursday 25 | |||||||||||||||||||||
| Sunrise | - | - | - | - | - | - | - | 5:22 | - | - | - | - | - | - | - | 5:22 | - | - | - | - | - | - | - | 5:24 |
| Sunset | - | - | 7:51 | - | - | - | - | - | - | - | 7:52 | - | - | - | - | - | - | - | 7:52 | - | - | - | - | - |
 |  | |  | | |  | |  | | | |  | | |  | | | | | | |  | | |
Rain (mm) | - | - | - | - | - | - | - | - | - | - | - | - | 1 | 1 | 1 | 1 | - | - | - | - | 1 | - | - | - |
| Temp. °C | 22 | 23 | 22 | 21 | 21 | 21 | 20 | 21 | 21 | 21 | 21 | 20 | 20 | 19 | 19 | 19 | 20 | 20 | 20 | 20 | 19 | 19 | 19 | 19 |
| Feels °C (?) | 22 | 24 | 22 | 22 | 22 | 21 | 19 | 19 | 18 | 18 | 18 | 18 | 18 | 18 | 19 | 17 | 17 | 16 | 15 | 15 | 14 | 14 | 14 | 13 |
- 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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