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Surf Forecasts:
Arniston surfForecast / Overberg / South Africa
48hr Weather and Surf, issued 1 pm 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 7PM is: 3.5m 14s primary swell from a Southwest direction and 0.4m 12s secondary swell from a Southeast direction, 0.4m 9s secondary swell from a South-southeast direction (forecast issued at 01:00pm 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) | 10ft (3.0m) | 13s |
| 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 13°C on Wed night). Winds decreasing (gales from the W on Mon afternoon, light winds from the NW by Thu morning). | ||||||||||||||||||||||||
Mon 11 | Tuesday 12 | Wednesday 13 | Thu 14 | |||||||||||||||||||||
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 | |
Swell Height Map |    |    |    |    | ||||||||||||||||||||
WSW 13 | WSW 13 | SW 14 | SW 14 | SW 13 | SSW 14 | SW 13 | SW 13 | SSW 13 | SSW 13 | SW 12 | SSW 12 | SW 12 | SW 12 | SW 12 | SSW 12 | SW 12 | SW 12 | SSW 12 | SSW 12 | SSW 12 | SSW 12 | SSW 12 | SSW 11 | |
2415 | 2723 | 5044 | 4141 | 3732 | 2358 | 3468 | 5687 | 2434 | 2023 | 2101 | 1483 | 2001 | 2160 | 2320 | 2613 | 4746 | 6753 | 2403 | 2124 | 1871 | 1543 | 1320 | 1146 | |
Wind (km/h) | ||||||||||||||||||||||||
off | off | off | off | off | cross-off | cross-off | cross-off | cross-off | off | cross-off | cross-off | cross-off | cross-off | cross-off | cross-off | cross-off | cross-off | cross-off | cross-off | cross-off | 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 | 7:23AM0.16m | ||||||||||||||||||
 | |  |  | | |  | |  | |  |  |  | |  | |  | | | | | | |  | |
 | — | — | — | — | — | — | 7:22 | — | — | — | — | — | — | — | 7:22 | — | — | — | — | — | — | — | 7:24 | — |
 | — | — | 5:47 | — | — | — | — | — | — | — | 5:46 | — | — | — | — | — | — | — | 5:45 | — | — | — | — | 5:45 |
6 | 6 | 2 | 2 | 3 | 2 | 12 | 2 | — | 2 | 2 | — | — | — | — | 1 | — | — | — | — | — | — | — | — | |
Temp °C | 17 | 18 | 18 | 17 | 17 | 16 | 15 | 16 | 17 | 17 | 17 | 16 | 16 | 16 | 15 | 15 | 16 | 15 | 15 | 15 | 14 | 14 | 13 | 13 |
5 | 6 | 7 | 7 | 8 | 8 | 8 | 9 | 11 | 12 | 10 | 8 | 8 | 7 | 5 | 6 | 8 | 8 | 9 | 10 | 10 | 10 | 10 | 10 | |
Swell 1 Height (m) Direction Period (s) | S 9 | SSW 15 | SE 12 | SE 12 | SE 12 | SSW 14 | SE 11 | SSW 13 | SSW 13 | SSW 13 | — | SSW 12 | — | SE 11 | SE 11 | SE 12 | SSW 12 | SSW 13 | SSW 12 | SSW 12 | SSW 12 | SSW 12 | SSW 12 | SSW 11 |
 kJ | 76 | 1117 | 51 | 52 | 23 | 2358 | 20 | 3365 | 2434 | 2023 | — | 1483 | — | 5 | 4 | 5 | 2920 | 2995 | 2403 | 2124 | 1871 | 1543 | 1320 | 1146 |
Swell 2 Height (m) Direction Period (s) | SE 12 | S 9 | SSE 9 | SE 12 | — | SE 12 | — | SE 12 | — | — | — | — | — | — | — | — | SE 11 | — | — | — | — | — | — | SW 20 |
| kJ | 53 | 41 | 29 | 24 | — | 23 | — | 5 | — | — | — | — | — | — | — | — | 5 | — | — | — | — | — | — | 15 |
Swell 3 Height (m) Direction Period (s) | SE 10 | SE 10 | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
| kJ | 35 | 36 | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
Wind waves Height (m) Direction Period (s) | WSW 13 | WSW 13 | SW 14 | SW 14 | SW 13 | WSW 13 | SW 13 | SW 13 | W 4 | W 4 | SW 12 | W 5 | SW 12 | SW 12 | SW 12 | SSW 12 | SW 12 | SW 12 | — | — | — | — | — | — |
| kJ | 2415 | 2723 | 5044 | 4141 | 3732 | 1356 | 3468 | 5687 | 40 | 48 | 2101 | 52 | 2001 | 2160 | 2320 | 2613 | 4746 | 6753 | — | — | — | — | — | — |
Nearest Offshore or Glassy | ||||||||||||||||||||||||
Distance (km) | 737 | 851 | 870 | 438 | 921 | 261 | 184 | 174 | 161 | 161 | 113 | 168 | 168 | 168 | 304 | 306 | 174 | 174 | 174 | 113 | 113 | 103 | 76 | 76 |
Best forecast wave conditions in Overberg | ||||||||||||||||||||||||
Best forecast wave conditions in South Africa | ||||||||||||||||||||||||
Header Global | ||||||||||||||||||||||||
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