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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 am Monday 11 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
15.7° C
(Which is 1.5°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 1PM is: 7.5m 13s primary swell from a West direction (forecast issued at 07:00am May 11). The wind direction is predicted to be onshore and the swell rating is 11.
| Time (SAST) & Date | Wave Height | Wave Period |
|---|---|---|
| Morning (11 May) | 21ft (6.5m) | 11s |
| Afternoon (11 May) | 25ft (7.5m) | 13s |
| Evening (11 May) | 20ft (6.0m) | 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 51mm), heaviest during Mon morning. Very mild (max 18°C on Mon afternoon, min 13°C on Wed night). Winds decreasing (gales from the NW on Mon morning, calm 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 |    |    |    |    | ||||||||||||||||||||
WSW 12 | W 11 | W 12 | W 13 | W 13 | W 13 | W 13 | WSW 13 | W 12 | W 13 | W 12 | W 12 | W 12 | W 12 | W 12 | W 12 | W 12 | SSW 12 | SSW 12 | SSW 12 | SSW 12 | SSW 12 | SSW 12 | SSW 12 | |
4701 | 9354 | 15176 | 18456 | 16959 | 13342 | 10627 | 9293 | 5885 | 5403 | 4157 | 4465 | 3520 | 2894 | 2544 | 2188 | 1825 | 2013 | 2318 | 2545 | 2739 | 2462 | 2168 | 1715 | |
Wind (km/h) | ||||||||||||||||||||||||
cross-on | cross-on | on | on | on | on | on | on | cross-on | cross-on | on | on | cross-on | on | cross-on | cross-on | cross-on | cross-on | cross-on | cross-on | cross-on | cross-on | glassy | glassy | |
High Tide | 10:56AM1.08m | 11:22PM1.27m | 11:55AM1.18m | 00:10AM1.39m | 12:45PM1.29m | 00:55AM1.50m | ||||||||||||||||||
Low Tide | 4:58PM0.48m | 5:51AM0.38m | 5:54PM0.40m | 6:38AM0.24m | 6:43PM0.30m | |||||||||||||||||||
 |  |  |  | | | | | | | | |  |  | |  | |  |  | | | | | | |
 | 7:26 | — | — | — | — | — | — | — | 7:28 | — | — | — | — | — | — | — | 7:28 | — | — | — | — | — | — | 7:28 |
 | — | — | — | — | 5:57 | — | — | — | — | — | — | — | 5:55 | — | — | — | — | — | — | — | 5:54 | — | — | 5:53 |
4 | 18 | 7 | 4 | 3 | 2 | 2 | 2 | 5 | 2 | 3 | 2 | 1 | — | — | — | — | — | — | — | — | — | — | — | |
Temp °C | 13 | 15 | 17 | 18 | 18 | 18 | 17 | 18 | 16 | 16 | 17 | 18 | 17 | 16 | 16 | 16 | 16 | 16 | 16 | 16 | 16 | 15 | 14 | 14 |
3 | 3 | 6 | 8 | 10 | 11 | 11 | 11 | 12 | 15 | 13 | 12 | 15 | 14 | 14 | 13 | 12 | 13 | 13 | 13 | 14 | 14 | 14 | 13 | |
Swell 1 Height (m) Direction Period (s) | WSW 12 | — | — | — | SSE 10 | — | — | WSW 13 | W 12 | W 13 | SW 13 | SSW 13 | W 12 | W 12 | W 12 | W 12 | W 12 | SSW 12 | SSW 12 | SSW 12 | SSW 12 | SSW 12 | SSW 12 | SSW 12 |
 kJ | 4701 | — | — | — | 9 | — | — | 9293 | 5885 | 5403 | 2982 | 2385 | 3520 | 2894 | 2544 | 2188 | 1825 | 2013 | 2318 | 2545 | 2739 | 2462 | 2168 | 1715 |
Swell 2 Height (m) Direction Period (s) | SE 14 | — | — | — | — | — | — | SW 13 | SW 13 | SW 13 | SSW 13 | SSW 13 | SW 12 | SSW 12 | SSW 12 | SSW 12 | SW 12 | W 12 | W 12 | W 11 | W 11 | WSW 11 | WSW 12 | WSW 11 |
| kJ | 7 | — | — | — | — | — | — | 3201 | 3284 | 2845 | 3041 | 2533 | 2138 | 1780 | 1553 | 1527 | 1739 | 1673 | 1535 | 1274 | 1042 | 927 | 913 | 874 |
Swell 3 Height (m) Direction Period (s) | SE 11 | — | — | — | — | — | — | — | NW 9 | NW 9 | — | NW 9 | — | — | — | — | — | — | — | — | — | — | — | W 20 |
| kJ | 4 | — | — | — | — | — | — | — | 816 | 654 | — | 450 | — | — | — | — | — | — | — | — | — | — | — | 8 |
Wind waves Height (m) Direction Period (s) | NW 8 | W 11 | W 12 | W 13 | W 13 | W 13 | W 13 | NW 10 | — | — | W 12 | W 12 | — | — | — | — | — | — | — | — | — | — | — | — |
| kJ | 978 | 9354 | 15176 | 18456 | 16959 | 13342 | 10627 | 753 | — | — | 4157 | 4465 | — | — | — | — | — | — | — | — | — | — | — | — |
Nearest Offshore or Glassy | ||||||||||||||||||||||||
Distance (km) | 361 | 379 | 885 | 1002 | 1008 | 1021 | 419 | 342 | 342 | 29 | 34 | 323 | 34 | 34 | 34 | 34 | 129 | 129 | 55 | 29 | 29 | 6 | 0 | 0 |
Best forecast wave conditions in Cape Town | ||||||||||||||||||||||||
Best forecast wave conditions in South Africa | ||||||||||||||||||||||||
Header Global | ||||||||||||||||||||||||
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Ocean Swells (m)- Wind Speed (km/h)
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