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Surf Forecasts:
Arniston surfForecast / Overberg / South Africa
48hr Weather and Surf, issued 1 pm Monday 08 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
20.4° 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 4PM is: 1.3m 12s primary swell from a South-southwest direction and 0.1m 8s secondary swell from a Southeast direction, 0.4m 3s secondary swell from a South-southwest direction (forecast issued at 01:00pm December 08). The wind direction is predicted to be cross-shore.
| Time (SAST) & Date | Wave Height | Wave Period |
|---|---|---|
| Morning (08 Dec) | 3.5ft (1.1m) | 12s |
| Afternoon (08 Dec) | 4.5ft (1.3m) | 12s |
| Evening (08 Dec) | 4.5ft (1.3m) | 12s |
Table - waves today at Arniston. (Swell directed towards the surf break)
Updates in hr min s Forecast update imminent
Monday 08 | Tuesday 09 | Wednesday 10 | Thursday 11 | |||||||||||||||||||||
| 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) (?) | 12 | 12 | 12 | 12 | 12 | 12 | 12 | 12 | 11 | 11 | 12 | 12 | 12 | 12 | 12 | 12 | 10 | 10 | 10 | 6 | 6 | 7 | 7 | 7 |
Wave (?)Graph  | ||||||||||||||||||||||||
 kJ (?) | 353 | 405 | 539 | 569 | 500 | 491 | 491 | 509 | 522 | 347 | 414 | 390 | 403 | 304 | 280 | 422 | 227 | 186 | 232 | 239 | 291 | 328 | 333 | 431 |
Wind (km/h) | ||||||||||||||||||||||||
| Wind State (?) onshore cross-onshore cross-shore cross-offshore offshore glassy | cross- on | cross | cross | cross- off | cross- off | off | off | cross- off | cross- on | cross- on | cross- on | on | on | on | on | cross- on | on | on | on | cross- on | cross- on | cross- on | cross- on | cross- on |
High Tide / height (m) | 5:39PM 1.66 | 6:14AM 1.68 | 6:29PM 1.50 | 7:08AM 1.58 | 7:26PM 1.35 | |||||||||||||||||||
Low Tide / height (m) | 11:38AM 0.33 | 11:55PM 0.28 | 12:32PM 0.45 | 12:43AM 0.41 | 1:33PM 0.56 | 1:36AM 0.54 | ||||||||||||||||||
Monday 08 | Tuesday 09 | Wednesday 10 | Thursday 11 | |||||||||||||||||||||
| Sunrise | - | - | - | - | - | - | - | 5:18 | - | - | - | - | - | - | - | 5:18 | - | - | - | - | - | - | - | 5:18 |
| Sunset | - | - | 7:42 | - | - | - | - | - | - | - | 7:43 | - | - | - | - | - | - | - | 7:44 | - | - | - | - | - |
 | | |  | |  |  |  |  | | | | | | |  | | | | | | | | | |
Rain (mm) | - | - | - | - | - | - | - | - | 1 | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - |
| Temp. °C | 20 | 20 | 20 | 20 | 19 | 19 | 19 | 21 | 20 | 19 | 18 | 18 | 18 | 18 | 18 | 19 | 19 | 19 | 19 | 18 | 18 | 18 | 18 | 19 |
| Feels °C (?) | 19 | 17 | 16 | 19 | 19 | 19 | 18 | 20 | 17 | 15 | 13 | 13 | 13 | 13 | 12 | 13 | 12 | 12 | 12 | 11 | 12 | 13 | 14 | 17 |
- 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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