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Surf Forecasts:
Arniston surfForecast / Overberg / South Africa
48hr Weather and Surf, issued 7 am Monday 11 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
18.2° C
(Which is slightly warmer than usual)How big are the waves at Arniston today?
The current surf forecast for Arniston at 2PM is: 3.5m 14s primary swell from a West-southwest direction and 0.5m 9s secondary swell from a South direction, 0.4m 12s secondary swell from a Southeast direction (forecast issued at 07:00am May 11). The wind direction is predicted to be offshore.
| Time (SAST) & Date | Wave Height | Wave Period |
|---|---|---|
| Morning (11 May) | 5ft (1.5m) | 12s |
| Afternoon (11 May) | 11ft (3.5m) | 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 44mm), heaviest during Mon night. Very mild (max 18°C on Mon afternoon, min 13°C on Wed night). Winds decreasing (gales from the W on Mon afternoon, light winds from the WNW by Wed night). | ||||||||||||||||||||||||
Monday 11 | Tuesday 12 | Wednesday 13 | Thu 14 | |||||||||||||||||||||
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 | 11 PM | 2 AM | |
Swell Height Map |    |    |    |    | ||||||||||||||||||||
SSW 12 | SW 12 | WSW 13 | WSW 14 | SW 14 | SW 14 | SW 14 | SW 13 | SSW 14 | SSW 13 | SSW 13 | SSW 13 | SSW 12 | SSW 12 | SW 12 | SW 12 | SW 12 | SSW 12 | SW 12 | SW 12 | SSW 12 | SSW 12 | SSW 12 | SSW 12 | |
713 | 593 | 2499 | 3959 | 4796 | 4141 | 3788 | 3732 | 3891 | 2983 | 2434 | 2023 | 1722 | 1605 | 2001 | 2281 | 2320 | 2613 | 4892 | 6949 | 2459 | 2124 | 1735 | 1517 | |
Wind (km/h) | ||||||||||||||||||||||||
cross-off | cross-off | off | off | off | off | off | cross-off | cross-off | cross-off | off | cross-off | cross-off | off | off | cross-off | cross-off | cross-off | cross-off | cross-off | cross-off | cross-off | off | off | |
High Tide | 10:58AM1.29m | 11:27PM1.53m | 11:59AM1.43m | 00:15AM1.69m | 12:48PM1.57m | 00:59AM1.84m | ||||||||||||||||||
Low Tide | 4:58PM0.59m | 5:53AM0.49m | 5:55PM0.48m | 6:40AM0.31m | 6:44PM0.36m | |||||||||||||||||||
 |  |  | | |  | | |  | |  | | |  | |  | |  | |  | | | | | |
 | 7:22 | — | — | — | — | — | — | — | 7:22 | — | — | — | — | — | — | — | 7:22 | — | — | — | — | — | — | 7:24 |
 | — | — | — | — | 5:47 | — | — | — | — | — | — | — | 5:46 | — | — | — | — | — | — | — | 5:45 | — | — | 5:45 |
— | 2 | 8 | 6 | 1 | 2 | 3 | 3 | 9 | 2 | 1 | 5 | 2 | — | — | — | — | — | — | — | — | — | — | — | |
Temp °C | 12 | 14 | 17 | 18 | 18 | 17 | 17 | 16 | 15 | 16 | 17 | 16 | 17 | 16 | 16 | 16 | 16 | 15 | 16 | 16 | 15 | 15 | 15 | 14 |
6 | 2 | 5 | 6 | 7 | 7 | 8 | 8 | 8 | 9 | 11 | 11 | 9 | 8 | 8 | 6 | 6 | 6 | 8 | 8 | 8 | 10 | 11 | 10 | |
Swell 1 Height (m) Direction Period (s) | SSW 12 | SW 12 | S 9 | S 9 | SE 12 | SE 12 | SE 12 | SE 12 | SE 11 | SSW 13 | SSW 13 | SSW 13 | SSW 12 | SSW 12 | — | — | SSE 11 | SSE 11 | SSW 12 | SSW 13 | SSW 12 | SSW 12 | SSW 12 | SSW 12 |
 kJ | 713 | 593 | 78 | 40 | 52 | 52 | 23 | 23 | 20 | 2983 | 2434 | 2023 | 1722 | 1605 | — | — | 12 | 12 | 2920 | 2889 | 2459 | 2124 | 1735 | 1517 |
Swell 2 Height (m) Direction Period (s) | SW 12 | S 9 | SE 12 | SE 12 | SSE 9 | SE 12 | — | — | — | SE 12 | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
| kJ | 531 | 160 | 53 | 37 | 29 | 24 | — | — | — | 5 | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
Swell 3 Height (m) Direction Period (s) | SSW 14 | SSW 14 | SE 10 | SE 10 | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
| kJ | 239 | 229 | 35 | 24 | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
Wind waves Height (m) Direction Period (s) | NW 4 | NNW 4 | WSW 13 | WSW 14 | SW 14 | SW 14 | SW 14 | SW 13 | SSW 14 | W 4 | W 4 | W 4 | WSW 5 | W 4 | SW 12 | SW 12 | SW 12 | SSW 12 | SW 12 | SW 12 | — | — | — | — |
| kJ | 12 | 20 | 2499 | 3959 | 4796 | 4141 | 3788 | 3732 | 3891 | 41 | 38 | 48 | 75 | 50 | 2001 | 2281 | 2320 | 2613 | 4892 | 6949 | — | — | — | — |
Nearest Offshore or Glassy | ||||||||||||||||||||||||
Distance (km) | 208 | 226 | 737 | 863 | 870 | 884 | 261 | 184 | 184 | 174 | 161 | 161 | 168 | 168 | 168 | 168 | 304 | 304 | 168 | 168 | 168 | 120 | 113 | 76 |
Best forecast wave conditions in Overberg | ||||||||||||||||||||||||
Best forecast wave conditions in South Africa | ||||||||||||||||||||||||
Header Global | ||||||||||||||||||||||||
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