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Surf Forecasts:
Arniston surfForecast / Overberg / South Africa
48hr Weather and Surf, issued 7 am 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 12PM is: 1.5m 11s primary swell from a Southeast direction and 0.7m 13s secondary swell from a Southwest direction, 1.3m 9s secondary swell from a West-southwest direction (forecast issued at 07:00am May 10). The wind direction is predicted to be offshore.
| Time (SAST) & Date | Wave Height | Wave Period |
|---|---|---|
| Morning (10 May) | 5.5ft (1.7m) | 11s |
| Afternoon (10 May) | 5ft (1.6m) | 9s |
| Evening (10 May) | 8ft (2.5m) | 10s |
Table - waves today at Arniston. (Swell directed towards the surf break)
Updates in hr min s Forecast update imminent
Short Range ForecastHeavy rain (total 62mm), heaviest during Mon night. Very mild (max 18°C on Mon afternoon, min 12°C on Sun afternoon). Mainly gales. | ||||||||||||||||||||||||
Sunday 10 | Monday 11 | Tuesday 12 | Wed 13 | |||||||||||||||||||||
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 |    |    |    |    | ||||||||||||||||||||
SE 12 | SE 11 | SE 11 | SE 11 | WSW 9 | WSW 10 | SW 12 | SSW 12 | SW 12 | SW 11 | WSW 12 | WSW 13 | SW 14 | SW 14 | SW 13 | WSW 13 | SW 13 | SSW 13 | SW 13 | SSW 12 | SW 12 | SSW 12 | SW 12 | SW 12 | |
963 | 784 | 589 | 429 | 454 | 1116 | 1926 | 762 | 1321 | 453 | 1676 | 3416 | 4277 | 3902 | 3385 | 1783 | 2783 | 2386 | 4456 | 2310 | 2231 | 1631 | 2219 | 2348 | |
Wind (km/h) | ||||||||||||||||||||||||
cross-off | off | off | off | off | cross-off | off | off | cross-off | cross-off | off | off | off | off | off | cross-off | cross-off | cross-off | cross-off | cross-off | cross-off | cross-off | cross-off | cross-off | |
High Tide | 9:33AM1.21m | 10:28PM1.39m | 10:58AM1.29m | 11:27PM1.53m | 11:59AM1.43m | 00:15AM1.69m | ||||||||||||||||||
Low Tide | 3:44PM0.66m | 4:54AM0.66m | 4:58PM0.59m | 5:53AM0.49m | 5:55PM0.48m | |||||||||||||||||||
 |  |  | |  |  | |  | | | | | | | |  |  | | | |  |  |  | | |
 | 7:20 | — | — | — | — | — | — | — | 7:22 | — | — | — | — | — | — | — | 7:22 | — | — | — | — | — | — | 7:22 |
 | — | — | — | — | 5:49 | — | — | — | — | — | — | — | 5:47 | — | — | — | — | — | — | — | 5:46 | — | — | 5:45 |
— | 1 | 1 | 2 | 6 | 2 | 1 | 1 | — | 2 | 3 | 6 | 2 | 1 | 3 | 6 | 16 | 3 | 1 | 5 | — | — | — | — | |
Temp °C | 15 | 13 | 15 | 12 | 13 | 13 | 13 | 12 | 12 | 12 | 16 | 18 | 18 | 17 | 17 | 17 | 16 | 16 | 16 | 15 | 17 | 16 | 16 | 16 |
11 | 6 | 5 | -1 | 2 | 2 | 2 | 3 | 5 | 4 | 4 | 7 | 7 | 6 | 8 | 11 | 9 | 9 | 10 | 8 | 9 | 8 | 7 | 5 | |
Swell 1 Height (m) Direction Period (s) | SE 12 | SE 11 | SE 11 | SE 11 | SE 11 | SE 11 | SE 11 | SW 11 | SW 12 | SW 11 | S 9 | S 9 | S 9 | S 10 | SE 12 | SSW 13 | SW 13 | SSW 13 | SSW 13 | SE 11 | — | SSW 12 | — | — |
 kJ | 963 | 784 | 589 | 429 | 263 | 194 | 165 | 726 | 1321 | 453 | 134 | 81 | 61 | 48 | 23 | 1157 | 62 | 2386 | 2441 | 5 | — | 1631 | — | — |
Swell 2 Height (m) Direction Period (s) | SW 14 | SW 13 | SW 13 | SW 12 | SW 12 | SSE 15 | — | SSW 12 | SE 10 | S 9 | SE 10 | SE 10 | SE 12 | SE 12 | — | SE 12 | — | — | — | — | — | — | — | — |
| kJ | 116 | 190 | 170 | 187 | 184 | 21 | — | 762 | 69 | 194 | 37 | 37 | 38 | 52 | — | 21 | — | — | — | — | — | — | — | — |
Swell 3 Height (m) Direction Period (s) | SSW 13 | SSW 13 | — | — | SSE 15 | — | — | SE 11 | SE 13 | SSW 14 | SE 12 | SE 12 | SE 10 | — | — | — | — | — | — | — | — | — | — | — |
| kJ | 34 | 17 | — | — | 22 | — | — | 90 | 44 | 325 | 40 | 39 | 15 | — | — | — | — | — | — | — | — | — | — | — |
Wind waves Height (m) Direction Period (s) | — | WNW 8 | WSW 9 | WSW 9 | WSW 9 | WSW 10 | SW 12 | WNW 4 | NW 4 | N 3 | WSW 12 | WSW 13 | SW 14 | SW 14 | SW 13 | WSW 13 | SW 13 | WSW 5 | SW 13 | SSW 12 | SW 12 | WSW 5 | SW 12 | SW 12 |
| kJ | — | 367 | 225 | 368 | 454 | 1116 | 1926 | 43 | 24 | 8 | 1676 | 3416 | 4277 | 3902 | 3385 | 1783 | 2783 | 45 | 4456 | 2310 | 2231 | 69 | 2219 | 2348 |
Nearest Offshore or Glassy | ||||||||||||||||||||||||
Distance (km) | 105 | 149 | 244 | 262 | 502 | 908 | 931 | 301 | 226 | 208 | 910 | 863 | 870 | 884 | 261 | 161 | 261 | 175 | 184 | 161 | 168 | 168 | 168 | 168 |
Best forecast wave conditions in Overberg | ||||||||||||||||||||||||
Best forecast wave conditions in South Africa | ||||||||||||||||||||||||
Header Global | ||||||||||||||||||||||||
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