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Big Bay Surf Forecast
/ Cape Town (70 surf breaks) /
Surf Forecasts:
Big Bay surfForecast / Cape Town / South Africa
48hr Weather and Surf, issued 7 pm Sunday 10 May 2026 SASTForecast update in hr min s Forecast update imminent
Big Bay surf forecast is for near shore open water. Breaking waves will often be smaller at less exposed spots.
Today's Big Bay sea temperature is
15.6° C
(Which is 1.6°C colder than average for this time of year)How big are the waves at Big Bay today?
The current surf forecast for Big Bay at 2AM is: 5.0m 12s primary swell from a West-southwest direction and 0.1m 11s secondary swell from a Southeast direction (forecast issued at 07:00pm May 10). The wind direction is predicted to be cross-onshore.
| Time (SAST) & Date | Wave Height | Wave Period |
|---|---|---|
| Morning (11 May) | 21ft (6.5m) | 11s |
| Afternoon (11 May) | 25ft (7.5m) | 13s |
| Evening (11 May) | 21ft (6.5m) | 13s |
Table - waves today at Big Bay. (Swell directed towards the surf break)
Updates in hr min s Forecast update imminent
Short Range ForecastHeavy rain (total 56mm), heaviest during Mon morning. Very mild (max 18°C on Mon afternoon, min 13°C on Sun night). Winds decreasing (gales from the NNW on Mon morning, light winds from the WSW by Wed afternoon). | ||||||||||||||||||||||||
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 10 | WSW 11 | SW 12 | WSW 12 | WSW 12 | WNW 10 | W 12 | W 13 | W 13 | W 13 | WSW 13 | WSW 13 | WSW 13 | W 12 | W 12 | W 12 | W 12 | W 12 | W 12 | W 12 | SW 12 | SSW 12 | SSW 12 | SSW 12 | |
4384 | 6438 | 5190 | 6889 | 4885 | 8250 | 13937 | 17871 | 17930 | 13840 | 10952 | 9462 | 9293 | 5770 | 4909 | 4171 | 3275 | 2894 | 2386 | 2035 | 1871 | 2013 | 2318 | 2700 | |
Wind (km/h) | ||||||||||||||||||||||||
cross-on | cross-on | on | cross-on | cross-on | cross-on | on | on | on | on | on | cross-on | on | on | on | on | on | cross-on | on | cross-on | cross-on | cross-on | cross-on | cross-on | |
High Tide | 10:24PM1.16m | 10:56AM1.08m | 11:22PM1.27m | 11:55AM1.18m | 00:10AM1.39m | 12:45PM1.29m | ||||||||||||||||||
Low Tide | 3:47PM0.54m | 4:54AM0.51m | 4:58PM0.48m | 5:51AM0.38m | 5:54PM0.40m | 6:38AM0.24m | ||||||||||||||||||
 |  | |  | |  |  | | | | | | | | | | | |  | |  |  | |  | |
 | — | — | — | — | 7:26 | — | — | — | — | — | — | — | 7:28 | — | — | — | — | — | — | — | 7:28 | — | — | — |
 | 5:57 | — | — | — | — | — | — | — | 5:57 | — | — | — | — | — | — | — | 5:55 | — | — | — | — | — | — | 5:54 |
2 | 1 | 1 | 1 | 2 | 11 | 9 | 5 | 3 | 1 | 2 | 1 | 4 | 2 | 5 | 4 | 2 | 1 | — | 1 | — | — | — | — | |
Temp °C | 13 | 14 | 14 | 14 | 13 | 14 | 17 | 17 | 18 | 18 | 17 | 17 | 17 | 16 | 17 | 17 | 17 | 16 | 16 | 16 | 16 | 15 | 15 | 16 |
3 | 5 | 7 | 8 | 4 | 2 | 6 | 7 | 10 | 11 | 12 | 11 | 10 | 14 | 12 | 12 | 15 | 14 | 14 | 13 | 12 | 11 | 11 | 13 | |
Swell 1 Height (m) Direction Period (s) | SE 11 | SW 22 | SW 12 | WSW 12 | WSW 12 | — | — | — | — | SSE 10 | WSW 13 | WSW 13 | W 13 | W 12 | SSW 13 | W 12 | W 12 | W 12 | W 12 | W 12 | SW 12 | SSW 12 | SSW 12 | SSW 12 |
 kJ | 5 | 18 | 5190 | 6889 | 4885 | — | — | — | — | 9 | 10952 | 9462 | 6429 | 5770 | 2299 | 4171 | 3275 | 2894 | 2386 | 2035 | 1871 | 2013 | 2318 | 2700 |
Swell 2 Height (m) Direction Period (s) | S 15 | SW 22 | S 14 | SE 11 | SE 13 | — | — | — | — | — | — | — | SW 12 | SSW 14 | — | SW 13 | SW 12 | SSW 12 | SSW 12 | SW 12 | W 12 | W 12 | W 11 | W 11 |
| kJ | 4 | 18 | 4 | 5 | 7 | — | — | — | — | — | — | — | 2713 | 2334 | — | 2587 | 2267 | 1839 | 1665 | 1710 | 1717 | 1673 | 1389 | 1274 |
Swell 3 Height (m) Direction Period (s) | — | — | — | SE 14 | SE 11 | — | — | — | — | — | — | — | — | NW 10 | — | — | — | — | NW 8 | — | — | — | — | — |
| kJ | — | — | — | 8 | 4 | — | — | — | — | — | — | — | — | 712 | — | — | — | — | 205 | — | — | — | — | — |
Wind waves Height (m) Direction Period (s) | WSW 10 | WSW 11 | WNW 12 | — | NW 7 | WNW 10 | W 12 | W 13 | W 13 | W 13 | — | NW 10 | WSW 13 | — | W 12 | — | — | — | — | — | — | — | — | — |
| kJ | 4384 | 6438 | 2277 | — | 698 | 8250 | 13937 | 17871 | 17930 | 13840 | — | 652 | 9293 | — | 4909 | — | — | — | — | — | — | — | — | — |
Nearest Offshore or Glassy | ||||||||||||||||||||||||
Distance (km) | 1159 | 598 | 940 | 940 | 361 | 361 | 885 | 882 | 1012 | 599 | 419 | 1055 | 340 | 29 | 34 | 37 | 34 | 34 | 34 | 34 | 129 | 130 | 130 | 130 |
Best forecast wave conditions in Cape Town | ||||||||||||||||||||||||
Best forecast wave conditions in South Africa | ||||||||||||||||||||||||
Header Global | ||||||||||||||||||||||||
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Live Wind Speed (km/h)
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Ocean Swells (m)- Wind Speed (km/h)
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