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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 Tuesday 21 Apr 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
15.8° C
(Which is 1.9°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: 3.5m 12s primary swell from a Southwest direction and 0.3m 18s secondary swell from a Southwest direction (forecast issued at 01:00pm April 21). The wind direction is predicted to be cross-shore.
| Time (SAST) & Date | Wave Height | Wave Period |
|---|---|---|
| Morning (21 Apr) | 10ft (3.0m) | 13s |
| Afternoon (21 Apr) | 11ft (3.5m) | 12s |
| Evening (21 Apr) | 11ft (3.5m) | 12s |
Table - waves today at Big Bay. (Swell directed towards the surf break)
Updates in hr min s Forecast update imminent
Tuesday 21 | Wednesday 22 | Thursday 23 | Friday 24 | |||||||||||||||||||||
| 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 | |
Rating (10 max) | ||||||||||||||||||||||||
Swell Height Map |    |    |    |    | ||||||||||||||||||||
| Wave Height (m) & direction (?) | ||||||||||||||||||||||||
| Period(s) (?) | 13 | 12 | 12 | 12 | 12 | 13 | 14 | 15 | 15 | 16 | 16 | 16 | 15 | 15 | 14 | 14 | 14 | 14 | 13 | 13 | 13 | 12 | 12 | 12 |
Wave (?)Graph  | ||||||||||||||||||||||||
 kJ (?) | 2789 | 3111 | 3563 | 3620 | 3858 | 4607 | 6643 | 8706 | 9300 | 9167 | 8613 | 7563 | 6566 | 4969 | 4164 | 3288 | 2756 | 2118 | 1561 | 1286 | 1103 | 774 | 624 | 444 |
Wind (km/h) | ||||||||||||||||||||||||
| Wind State (?) onshore cross-onshore cross-shore cross-offshore offshore glassy | cross- on | on | cross | cross- off | cross- off | cross- off | cross- off | cross- off | cross- off | cross- off | cross- off | cross- off | off | off | off | off | off | cross- off | cross- off | cross- off | off | off | off | off |
High Tide / height (m) | 6:11PM 1.33 | 6:31AM 1.30 | 7:15PM 1.22 | 7:43AM 1.15 | 8:41PM 1.15 | |||||||||||||||||||
Low Tide / height (m) | 11:56AM 0.19 | 12:18AM 0.33 | 12:52PM 0.33 | 1:28AM 0.46 | 2:07PM 0.45 | 3:11AM 0.53 | ||||||||||||||||||
Tuesday 21 | Wednesday 22 | Thursday 23 | Friday 24 | |||||||||||||||||||||
| Sunrise | - | - | - | - | - | - | - | 7:13 | - | - | - | - | - | - | - | 7:13 | - | - | - | - | - | - | - | 7:13 |
| Sunset | - | - | 6:15 | - | - | - | - | - | - | - | 6:15 | - | - | - | - | - | - | - | 6:14 | - | - | - | - | - |
 |  | |  |  |  | |  | | | | | | | | | | | | | | | | | |
Rain (mm) | - | 1 | 1 | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - |
| Temp. °C | 16 | 16 | 17 | 17 | 16 | 15 | 15 | 15 | 16 | 18 | 19 | 17 | 14 | 13 | 13 | 13 | 17 | 21 | 21 | 20 | 19 | 18 | 18 | 19 |
| Feels °C (?) | 11 | 12 | 13 | 14 | 13 | 11 | 10 | 11 | 11 | 14 | 15 | 14 | 10 | 9 | 10 | 10 | 14 | 18 | 17 | 17 | 16 | 15 | 14 | 16 |
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Live Wave Height (m)
Live Wind Speed (km/h)
Surf Rating (10 Max)
Ocean Swells (m)- Wind Speed (km/h)
FREE! Surf-Forecast.com widget for your website
The surf report / weather widget below is available to embed on third party websites free of charge and provides a summary of our Big Bay surf forecast. Simply grab the html code snippet that we provide and paste it into your own site. You can choose your preferred language and metric/imperial units for the surf forecast feed to suit users of your site. Click here to get the code.
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