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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 1 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 4PM is: 4.0m 9s primary swell from a West-southwest direction and 0.1m 11s secondary swell from a Southeast direction, 0.1m 15s secondary swell from a South direction (forecast issued at 01:00pm May 10). The wind direction is predicted to be cross-onshore.
| Time (SAST) & Date | Wave Height | Wave Period |
|---|---|---|
| Morning (10 May) | 4.5ft (1.4m) | 13s |
| Afternoon (10 May) | 13ft (4.0m) | 9s |
| Evening (10 May) | 16ft (5.0m) | 11s |
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 61mm), heaviest during Mon morning. Very mild (max 18°C on Mon afternoon, min 12°C on Sun afternoon). Winds decreasing (gales from the NNW on Mon morning, light winds from the W by Tue night). | ||||||||||||||||||||||||
Sun 10 | Monday 11 | Tuesday 12 | Wed 13 | |||||||||||||||||||||
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 8 | WSW 10 | WSW 11 | SW 12 | SW 11 | WSW 12 | WNW 10 | W 12 | W 13 | W 13 | W 13 | WSW 13 | WSW 13 | W 13 | WSW 13 | W 12 | W 11 | W 12 | W 12 | W 12 | W 12 | W 12 | SSW 12 | |
862 | 1818 | 4045 | 5895 | 4185 | 3079 | 4498 | 8511 | 14093 | 18199 | 16703 | 13692 | 10249 | 9293 | 9573 | 9192 | 6086 | 5266 | 4297 | 3404 | 2854 | 2307 | 1934 | 1870 | |
Wind (km/h) | ||||||||||||||||||||||||
on | cross-on | cross-on | cross-on | on | cross-on | cross-on | cross-on | on | on | on | on | on | cross-on | on | on | on | on | cross-on | on | cross-on | cross-on | cross-on | cross-on | |
High Tide | 9:38AM1.01m | 10:24PM1.16m | 10:56AM1.08m | 11:22PM1.27m | 11:55AM1.18m | 00:10AM1.39m | ||||||||||||||||||
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 |
1 | 5 | 2 | 1 | 2 | 1 | 2 | 9 | 8 | 4 | 3 | 2 | 1 | 2 | 3 | 9 | 2 | 2 | 1 | 1 | 1 | — | — | — | |
Temp °C | 15 | 12 | 13 | 14 | 14 | 14 | 13 | 15 | 17 | 18 | 18 | 18 | 18 | 17 | 18 | 17 | 18 | 18 | 17 | 16 | 16 | 16 | 16 | 15 |
8 | 2 | 3 | 5 | 7 | 8 | 4 | 3 | 7 | 8 | 9 | 11 | 13 | 10 | 11 | 11 | 12 | 12 | 15 | 14 | 13 | 14 | 12 | 11 | |
Swell 1 Height (m) Direction Period (s) | WSW 13 | SSE 11 | SE 11 | SW 22 | SW 12 | SW 11 | WSW 12 | — | — | — | SSE 10 | — | WSW 13 | WSW 13 | SW 12 | SSW 13 | SSW 13 | SW 13 | W 12 | W 12 | W 12 | W 12 | W 12 | SSW 12 |
 kJ | 862 | 12 | 5 | 18 | 4185 | 3079 | 4498 | — | — | — | 18 | — | 10249 | 9293 | 2466 | 2349 | 2029 | 2073 | 4297 | 3404 | 2854 | 2307 | 1934 | 1825 |
Swell 2 Height (m) Direction Period (s) | SSE 12 | — | S 15 | S 15 | S 14 | SE 11 | SE 13 | — | — | — | — | — | — | — | — | — | — | — | SW 12 | SSW 12 | SSW 12 | SSW 12 | SSW 12 | W 12 |
| kJ | 13 | — | 4 | 4 | 4 | 5 | 7 | — | — | — | — | — | — | — | — | — | — | — | 2008 | 1527 | 1411 | 1582 | 1857 | 1870 |
Swell 3 Height (m) Direction Period (s) | — | — | — | SW 22 | — | SE 14 | SE 11 | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
| kJ | — | — | — | 18 | — | 8 | 4 | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
Wind waves Height (m) Direction Period (s) | W 8 | WSW 8 | WSW 10 | WSW 11 | W 12 | W 12 | NW 7 | WNW 10 | W 12 | W 13 | W 13 | W 13 | NW 10 | NW 10 | W 13 | WSW 13 | W 12 | W 11 | — | — | — | — | — | — |
| kJ | 636 | 1818 | 4045 | 5895 | 2405 | 2759 | 661 | 8511 | 14093 | 18199 | 16703 | 13692 | 315 | 753 | 9573 | 9192 | 6086 | 5266 | — | — | — | — | — | — |
Nearest Offshore or Glassy | ||||||||||||||||||||||||
Distance (km) | 838 | 904 | 661 | 598 | 1065 | 940 | 361 | 379 | 885 | 885 | 1012 | 598 | 419 | 1055 | 340 | 29 | 323 | 280 | 34 | 34 | 34 | 34 | 34 | 34 |
Best forecast wave conditions in Cape Town | ||||||||||||||||||||||||
Best forecast wave conditions in South Africa | ||||||||||||||||||||||||
Header Global | ||||||||||||||||||||||||
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