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Surf Forecasts:
Arniston surfForecast / Overberg / South Africa
48hr Weather and Surf, issued 7 pm Sunday 10 May 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
18.0° C
(Which is normal for this time of year)How big are the waves at Arniston today?
The current surf forecast for Arniston at 1AM is: 2.4m 12s primary swell from a Southwest direction and 0.6m 11s secondary swell from a Southeast direction (forecast issued at 07:00pm May 10). An open ocean swell of 1.1m 5s is not directed at the surf break. The wind direction is predicted to be offshore and the swell rating is 11.
| Time (SAST) & Date | Wave Height | Wave Period |
|---|---|---|
| Morning (11 May) | 5ft (1.6m) | 12s |
| Afternoon (11 May) | 10ft (3.0m) | 14s |
| Evening (11 May) | 11ft (3.5m) | 14s |
Table - waves today at Arniston. (Swell directed towards the surf break)
Updates in hr min s Forecast update imminent
Short Range ForecastHeavy rain (total 34mm), heaviest during Mon night. Very mild (max 18°C on Mon afternoon, min 12°C on Sun night). Mainly gales. | ||||||||||||||||||||||||
Sun 10 | Monday 11 | Tuesday 12 | Wed 13 | |||||||||||||||||||||
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 | 11 AM | 2 PM | |
Swell Height Map |    |    |    |    | ||||||||||||||||||||
WSW 9 | SW 10 | SW 12 | SW 12 | SSW 12 | SW 12 | SW 13 | WSW 13 | SW 14 | SW 14 | SSW 13 | WSW 14 | SW 13 | SW 13 | SSW 13 | SSW 13 | SW 13 | SSW 12 | SW 12 | SW 12 | SW 12 | SSW 12 | SW 12 | SSW 13 | |
646 | 1351 | 2089 | 1711 | 597 | 583 | 1092 | 3584 | 4729 | 4435 | 1920 | 1805 | 3292 | 5580 | 2274 | 2385 | 2304 | 1694 | 2219 | 2408 | 2584 | 2765 | 5168 | 2796 | |
Wind (km/h) | ||||||||||||||||||||||||
off | cross-off | off | off | cross-off | cross-off | off | off | off | off | cross-off | cross-off | cross-off | cross-off | cross-off | cross-off | cross-off | cross-off | cross-off | cross-off | cross-off | cross-off | cross-off | cross-off | |
High Tide | 10:28PM1.39m | 10:58AM1.29m | 11:27PM1.53m | 11:59AM1.43m | 00:15AM1.69m | 12:48PM1.57m | ||||||||||||||||||
Low Tide | 3:44PM0.66m | 4:54AM0.66m | 4:58PM0.59m | 5:53AM0.49m | 5:55PM0.48m | 6:40AM0.31m | ||||||||||||||||||
 |  |  | |  | | | | | | | |  | | | |  |  |  | | |  | |  | |
 | — | — | — | — | 7:22 | — | — | — | — | — | — | — | 7:22 | — | — | — | — | — | — | — | 7:22 | — | — | — |
 | 5:49 | — | — | — | — | — | — | — | 5:47 | — | — | — | — | — | — | — | 5:46 | — | — | — | — | — | — | 5:45 |
4 | 1 | 2 | 1 | — | 1 | 2 | 5 | 3 | 2 | 2 | 1 | 9 | 2 | 1 | 2 | — | — | — | — | — | — | — | — | |
Temp °C | 14 | 12 | 13 | 13 | 12 | 13 | 17 | 18 | 18 | 17 | 17 | 16 | 15 | 15 | 16 | 16 | 17 | 16 | 16 | 16 | 15 | 15 | 16 | 15 |
3 | 0 | 2 | 4 | 6 | 3 | 3 | 6 | 6 | 6 | 8 | 8 | 8 | 8 | 10 | 10 | 9 | 8 | 7 | 6 | 5 | 6 | 8 | 7 | |
Swell 1 Height (m) Direction Period (s) | SE 11 | SE 11 | SE 11 | SW 12 | SSW 12 | SW 12 | SW 13 | S 9 | SE 12 | SE 12 | SSW 13 | SSW 13 | SE 11 | SSW 13 | SSW 13 | — | — | SSW 12 | — | SSE 11 | SSE 11 | — | SSW 13 | SSW 13 |
 kJ | 263 | 194 | 165 | 1711 | 593 | 583 | 1092 | 41 | 52 | 52 | 1920 | 1725 | 20 | 3136 | 2274 | — | — | 1694 | — | 12 | 22 | — | 2967 | 2796 |
Swell 2 Height (m) Direction Period (s) | SW 12 | SSW 12 | — | SE 11 | SW 12 | S 9 | S 9 | SE 12 | S 9 | SE 12 | SE 12 | SE 12 | — | SE 12 | — | — | — | — | — | — | — | — | — | — |
| kJ | 181 | 58 | — | 90 | 597 | 160 | 78 | 37 | 25 | 24 | 23 | 23 | — | 5 | — | — | — | — | — | — | — | — | — | — |
Swell 3 Height (m) Direction Period (s) | SSE 15 | SSE 15 | — | SE 13 | SSW 14 | SSW 14 | SE 10 | SE 10 | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
| kJ | 22 | 21 | — | 45 | 261 | 257 | 36 | 24 | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
Wind waves Height (m) Direction Period (s) | WSW 9 | SW 10 | SW 12 | WNW 5 | NW 4 | NNW 4 | NW 5 | WSW 13 | SW 14 | SW 14 | WSW 14 | WSW 14 | SW 13 | SW 13 | W 4 | SSW 13 | SW 13 | WSW 5 | SW 12 | SW 12 | SW 12 | SSW 12 | SW 12 | WSW 4 |
| kJ | 646 | 1351 | 2089 | 54 | 19 | 13 | 108 | 3584 | 4729 | 4435 | 1805 | 1805 | 3292 | 5580 | 38 | 2385 | 2304 | 66 | 2219 | 2408 | 2584 | 2765 | 5168 | 31 |
Nearest Offshore or Glassy | ||||||||||||||||||||||||
Distance (km) | 1031 | 438 | 938 | 1031 | 208 | 208 | 737 | 733 | 874 | 438 | 261 | 921 | 183 | 167 | 161 | 113 | 168 | 168 | 168 | 168 | 304 | 306 | 306 | 306 |
Best forecast wave conditions in Overberg | ||||||||||||||||||||||||
Best forecast wave conditions in South Africa | ||||||||||||||||||||||||
Header Global | ||||||||||||||||||||||||
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