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Surf Forecasts:
Big Bay surfForecast / Cape Town / South Africa
48hr Weather and Surf, issued 1 am Saturday 06 Dec 2025 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
14.6° C
(Which is 4.0°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 7AM is: 1.8m 8s primary swell from a South-southwest direction and 0.3m 9s secondary swell from a West-southwest direction, 0.3m 13s secondary swell from a Southwest direction (forecast issued at 01:00am December 06). The wind direction is predicted to be cross-offshore.
| Time (SAST) & Date | Wave Height | Wave Period |
|---|---|---|
| Morning (06 Dec) | 5.5ft (1.7m) | 8s |
| Afternoon (06 Dec) | 6ft (1.9m) | 7s |
| Evening (06 Dec) | 3.5ft (1.1m) | 13s |
Table - waves today at Big Bay. (Swell directed towards the surf break)
Updates in hr min s Forecast update imminent
Saturday 06 | Sunday 07 | Monday 08 | ||||||||||||||||||||||
| 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 | 5 PM | 8 PM | |
Rating (10 max) | ||||||||||||||||||||||||
Swell Height Map |  |    |    |    | ||||||||||||||||||||
| Wave Height (m) & direction (?) | ||||||||||||||||||||||||
| Period(s) (?) | 8 | 9 | 9 | 8 | 8 | 8 | 6 | 13 | 13 | 13 | 12 | 12 | 12 | 12 | 12 | 12 | 12 | 12 | 12 | 12 | 12 | 12 | 12 | 12 |
Wave (?)Graph  | ||||||||||||||||||||||||
 kJ (?) | 459 | 579 | 466 | 404 | 370 | 407 | 318 | 394 | 623 | 784 | 986 | 1415 | 1415 | 1439 | 1048 | 960 | 960 | 805 | 1111 | 736 | 736 | 800 | 855 | 1058 |
Wind (km/h) | ||||||||||||||||||||||||
| Wind State (?) onshore cross-onshore cross-shore cross-offshore offshore glassy | cross- off | cross- off | cross- off | cross- off | cross- off | cross- off | cross- off | cross- off | cross- off | cross- off | off | cross- off | cross | cross- off | cross- off | cross- off | cross- off | cross- off | cross- off | cross- off | cross- off | cross | cross- off | cross- off |
High Tide / height (m) | 3:53AM 1.55 | 4:08PM 1.57 | 4:40AM 1.52 | 4:56PM 1.48 | 5:29AM 1.47 | 5:45PM 1.36 | ||||||||||||||||||
Low Tide / height (m) | 9:41PM -0.02 | 10:00AM 0.11 | 10:26PM 0.03 | 10:50AM 0.16 | 11:12PM 0.11 | 11:42AM 0.24 | ||||||||||||||||||
Saturday 06 | Sunday 07 | Monday 08 | ||||||||||||||||||||||
| Sunrise | - | - | - | 5:28 | - | - | - | - | - | - | - | 5:28 | - | - | - | - | - | - | - | 5:28 | - | - | - | - |
| Sunset | - | - | - | - | - | - | 7:45 | - | - | - | - | - | - | - | 7:45 | - | - | - | - | - | - | - | 7:46 | - |
 | | |  | | | | | | | | |  | | |  | | | | | | | | | |
Rain (mm) | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - |
| Temp. °C | 18 | 17 | 17 | 18 | 21 | 20 | 20 | 18 | 17 | 16 | 15 | 17 | 22 | 23 | 21 | 18 | 18 | 17 | 17 | 19 | 22 | 23 | 22 | 20 |
| Feels °C (?) | 14 | 13 | 13 | 13 | 16 | 14 | 13 | 12 | 13 | 14 | 13 | 15 | 19 | 19 | 16 | 13 | 15 | 16 | 16 | 17 | 19 | 19 | 18 | 18 |
- Map Icons:
Break
Live Wave Height (m)
Live Wind Speed (km/h)
Surf Rating (10 Max)
Ocean Swells (m)- Wind Speed (km/h)
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