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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 Tuesday 12 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 12AM is: 3.0m 12s primary swell from a West direction and 2.5m 12s secondary swell from a Southwest direction (forecast issued at 07:00pm May 12). The wind direction is predicted to be cross-onshore.
| Time (SAST) & Date | Wave Height | Wave Period |
|---|---|---|
| Morning (13 May) | 10ft (3.0m) | 12s |
| Afternoon (13 May) | 10ft (3.0m) | 12s |
| Evening (13 May) | 10ft (3.0m) | 12s |
Table - waves today at Big Bay. (Swell directed towards the surf break)
Updates in hr min s Forecast update imminent
Short Range ForecastMostly dry. Very mild (max 18°C on Fri afternoon, min 12°C on Wed night). Wind will be generally light. | ||||||||||||||||||||||||
Tue 12 | Wednesday 13 | Thursday 14 | Fri 15 | |||||||||||||||||||||
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 |    |    |    |    | ||||||||||||||||||||
W 12 | W 12 | W 12 | W 12 | SSW 12 | SSW 12 | SSW 12 | SSW 12 | SSW 12 | SSW 12 | SSW 12 | SSW 12 | SSW 12 | SSW 12 | SSW 12 | SSW 11 | SSW 11 | SSW 11 | WSW 13 | WSW 11 | SSW 14 | SSW 14 | SSW 14 | SSW 14 | |
3321 | 2903 | 2216 | 2001 | 2081 | 2440 | 2587 | 2784 | 2739 | 2694 | 2421 | 2168 | 1776 | 1715 | 1427 | 1107 | 787 | 711 | 623 | 469 | 822 | 1859 | 1984 | 2460 | |
Wind (km/h) | ||||||||||||||||||||||||
on | cross-on | on | cross-on | cross-on | cross-on | cross-on | cross-on | cross-on | cross-on | glassy | glassy | glassy | glassy | glassy | cross-on | cross-on | cross-on | glassy | glassy | glassy | off | cross-off | cross-off | |
High Tide | 00:10AM1.39m | 12:45PM1.29m | 00:55AM1.50m | 1:30PM1.40m | 1:39AM1.59m | |||||||||||||||||||
Low Tide | 5:54PM0.40m | 6:38AM0.24m | 6:43PM0.30m | 7:21AM0.11m | 7:29PM0.22m | 8:04AM0.02m | ||||||||||||||||||
 |  |  |  | |  | | | | | | | |  | | | | | | | | | | | |
 | — | — | — | — | 7:28 | — | — | — | — | — | — | — | 7:28 | — | — | — | — | — | — | — | 7:30 | — | — | — |
 | 5:55 | — | — | — | — | — | — | — | 5:54 | — | — | — | — | — | — | — | 5:53 | — | — | — | — | — | — | 5:53 |
— | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | |
Temp °C | 17 | 16 | 16 | 15 | 15 | 15 | 15 | 15 | 15 | 15 | 14 | 13 | 12 | 12 | 14 | 15 | 15 | 15 | 15 | 15 | 15 | 15 | 17 | 18 |
15 | 13 | 13 | 10 | 10 | 11 | 11 | 12 | 13 | 13 | 13 | 12 | 11 | 11 | 13 | 13 | 13 | 14 | 14 | 15 | 15 | 15 | 16 | 15 | |
Swell 1 Height (m) Direction Period (s) | W 12 | W 12 | W 12 | W 12 | SSW 12 | SSW 12 | SSW 12 | SSW 12 | SSW 12 | SSW 12 | SSW 12 | SSW 12 | SSW 12 | SSW 12 | SSW 12 | SSW 11 | SSW 11 | SSW 11 | SSW 11 | WSW 11 | SSW 14 | SSW 14 | SSW 14 | SSW 14 |
 kJ | 3321 | 2903 | 2216 | 2001 | 2081 | 2440 | 2587 | 2784 | 2739 | 2694 | 2421 | 2168 | 1776 | 1715 | 1427 | 1107 | 787 | 711 | 521 | 469 | 822 | 1859 | 1984 | 2460 |
Swell 2 Height (m) Direction Period (s) | SSW 12 | SSW 12 | SW 12 | SSW 12 | W 12 | W 12 | W 12 | WSW 12 | WSW 12 | W 11 | WSW 11 | WSW 11 | WSW 11 | WSW 11 | WSW 11 | WSW 11 | WSW 12 | WSW 11 | WSW 13 | SSW 11 | SSW 10 | WSW 12 | WSW 15 | WSW 15 |
| kJ | 2017 | 1751 | 1710 | 1952 | 1839 | 1691 | 1438 | 1320 | 1208 | 943 | 836 | 764 | 681 | 593 | 593 | 515 | 725 | 373 | 623 | 387 | 389 | 374 | 525 | 917 |
Swell 3 Height (m) Direction Period (s) | — | — | — | — | — | — | — | — | — | — | — | W 20 | SW 19 | SW 19 | WSW 18 | SW 18 | SW 18 | WSW 13 | WSW 16 | SSW 14 | WSW 12 | WSW 15 | SW 11 | SW 11 |
| kJ | — | — | — | — | — | — | — | — | — | — | — | 8 | 15 | 15 | 61 | 80 | 81 | 204 | 295 | 336 | 393 | 439 | 224 | 268 |
Wind waves Height (m) Direction Period (s) | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
| kJ | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
Nearest Offshore or Glassy | ||||||||||||||||||||||||
Distance (km) | 34 | 34 | 34 | 129 | 129 | 130 | 55 | 29 | 29 | 34 | 0 | 0 | 0 | 0 | 0 | 13 | 13 | 4 | 0 | 0 | 0 | 0 | 0 | 34 |
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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