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Dunes Surf Forecast
/ Cape Town (70 surf breaks) /
Surf Forecasts:
Dunes surfForecast / Cape Town / South Africa
48hr Weather and Surf, issued 7 am Tuesday 12 May 2026 SASTForecast update in hr min s Forecast update imminent
Dunes surf forecast is for near shore open water. Breaking waves will often be smaller at less exposed spots.
Today's Dunes sea temperature is
17.2° C
(Which is normal for this time of year)How big are the waves at Dunes today?
The current surf forecast for Dunes at 10AM is: 3.5m 12s primary swell from a West direction and 3.0m 13s secondary swell from a South-southwest direction, 1.2m 11s secondary swell from a West-northwest direction (forecast issued at 07:00am May 12). The wind direction is predicted to be onshore.
| Time (SAST) & Date | Wave Height | Wave Period |
|---|---|---|
| Morning (12 May) | 13ft (4.0m) | 12s |
| Afternoon (12 May) | 11ft (3.5m) | 12s |
| Evening (12 May) | 10ft (3.0m) | 12s |
Table - waves today at Dunes. (Swell directed towards the surf break)
Updates in hr min s Forecast update imminent
Short Range ForecastLight rain (total 7mm), mostly falling on Tue morning. Very mild (max 17°C on Tue afternoon, min 14°C on Wed night). Winds decreasing (fresh winds from the W on Tue night, calm by Thu morning). | ||||||||||||||||||||||||
Tuesday 12 | Wednesday 13 | Thursday 14 | Fri 15 | |||||||||||||||||||||
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 |    |    |    |    | ||||||||||||||||||||
W 13 | W 12 | W 12 | SW 13 | SW 13 | W 12 | SSW 12 | SSW 12 | SSW 12 | SW 12 | SSW 12 | SSW 12 | SSW 12 | SSW 12 | SSW 12 | SSW 12 | SSW 12 | SSW 12 | SSW 11 | SSW 11 | SSW 11 | SSW 11 | SSW 11 | SW 11 | |
5494 | 4930 | 3708 | 3560 | 3049 | 2759 | 2796 | 2440 | 2587 | 5387 | 3149 | 3337 | 3230 | 2691 | 2452 | 2176 | 1913 | 1631 | 1348 | 942 | 823 | 698 | 627 | 716 | |
Wind (km/h) | ||||||||||||||||||||||||
cross-on | on | on | on | cross-on | cross-on | cross-on | cross-on | cross-on | cross-on | cross-on | cross-on | cross-on | cross | cross | cross-off | glassy | glassy | glassy | glassy | on | on | on | glassy | |
High Tide | 11:55AM1.17m | 00:10AM1.39m | 12:45PM1.29m | 00:55AM1.50m | 1:30PM1.39m | 1:39AM1.59m | ||||||||||||||||||
Low Tide | 5:51AM0.39m | 5:54PM0.40m | 6:38AM0.25m | 6:43PM0.30m | 7:22AM0.12m | 7:28PM0.22m | ||||||||||||||||||
 |  | |  | |  | |  | |  |  | | |  | | | |  | | | | | | | |
 | 7:28 | — | — | — | — | — | — | — | 7:30 | — | — | — | — | — | — | — | 7:31 | — | — | — | — | — | — | 7:31 |
 | — | — | — | — | 5:55 | — | — | — | — | — | — | — | 5:54 | — | — | — | — | — | — | — | 5:53 | — | — | 5:52 |
8 | 1 | 4 | 1 | 1 | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | |
Temp °C | 16 | 16 | 16 | 17 | 17 | 17 | 16 | 15 | 15 | 15 | 15 | 15 | 15 | 15 | 14 | 14 | 14 | 14 | 14 | 15 | 15 | 16 | 16 | 16 |
12 | 13 | 13 | 13 | 13 | 12 | 10 | 8 | 9 | 9 | 10 | 12 | 12 | 13 | 12 | 13 | 13 | 13 | 13 | 14 | 13 | 15 | 15 | 16 | |
Swell 1 Height (m) Direction Period (s) | W 13 | W 12 | W 12 | SW 13 | SW 13 | W 12 | SSW 12 | SSW 12 | SSW 12 | SSW 12 | SSW 12 | SSW 12 | SSW 12 | SSW 12 | SSW 12 | SSW 12 | SSW 12 | SSW 12 | SSW 11 | SSW 11 | SSW 11 | SSW 11 | SSW 11 | SW 11 |
 kJ | 5494 | 4930 | 3708 | 3511 | 3049 | 2759 | 2216 | 2440 | 2587 | 2986 | 3149 | 3337 | 3230 | 2691 | 2452 | 2176 | 1913 | 1631 | 1348 | 942 | 823 | 698 | 627 | 716 |
Swell 2 Height (m) Direction Period (s) | SW 13 | SSW 13 | SSW 13 | W 12 | NW 9 | SSW 12 | — | NW 8 | — | W 12 | W 12 | W 12 | W 11 | WSW 11 | WSW 11 | WSW 11 | WSW 11 | WSW 11 | WSW 11 | WSW 12 | WSW 12 | WSW 11 | WSW 13 | S 14 |
| kJ | 3836 | 3169 | 3214 | 2386 | 323 | 2338 | — | 88 | — | 1914 | 1644 | 1413 | 1147 | 1187 | 944 | 916 | 745 | 667 | 704 | 797 | 718 | 303 | 522 | 687 |
Swell 3 Height (m) Direction Period (s) | NNW 10 | NNW 10 | NNW 9 | NW 10 | — | — | — | — | — | SE 12 | SE 11 | SE 11 | — | — | — | SW 20 | SW 19 | WSW 19 | SW 18 | WSW 18 | WSW 17 | WSW 13 | WSW 16 | WSW 13 |
| kJ | 983 | 756 | 422 | 614 | — | — | — | — | — | 5 | 5 | 4 | — | — | — | 15 | 15 | 37 | 81 | 123 | 119 | 204 | 402 | 433 |
Wind waves Height (m) Direction Period (s) | — | W 12 | WNW 11 | W 12 | W 12 | W 12 | W 12 | W 12 | W 12 | SW 12 | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
| kJ | — | 3930 | 311 | 3560 | 2338 | 1355 | 2796 | 2418 | 2229 | 5387 | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
Nearest Offshore or Glassy | ||||||||||||||||||||||||
Distance (km) | 349 | 349 | 329 | 8 | 8 | 8 | 20 | 20 | 161 | 161 | 161 | 161 | 12 | 8 | 2 | 2 | 0 | 0 | 0 | 0 | 0 | 1 | 0 | 2 |
Best forecast wave conditions in Cape Town | ||||||||||||||||||||||||
Best forecast wave conditions in South Africa | ||||||||||||||||||||||||
Header Global | ||||||||||||||||||||||||
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