Nazare Big Wave Challenge Gets Yellow Alert, Could Run Saturday in Giant Waves
70-foot plus waves predicted for Portuguese big wave tow surfing competition.
Surf Forecasts:
Gansbaai surfForecast / Overberg / South Africa
48hr Weather and Surf, issued 7 am Sunday 14 Dec 2025 SASTForecast update in hr min s Forecast update imminent
Gansbaai surf forecast is for near shore open water. Breaking waves will often be smaller at less exposed spots.
Today's Gansbaai sea temperature is
17.2° C
(Which is 2.1°C colder than average for this time of year)How big are the waves at Gansbaai today?
The current surf forecast for Gansbaai at 12PM is: 2.5m 12s primary swell from a Southwest direction and 0.2m 10s secondary swell from a South-southeast direction (forecast issued at 07:00am December 14). The wind direction is predicted to be cross-onshore.
| Time (SAST) & Date | Wave Height | Wave Period |
|---|---|---|
| Morning (14 Dec) | 8ft (2.5m) | 12s |
| Afternoon (14 Dec) | 8ft (2.4m) | 12s |
| Evening (14 Dec) | 8ft (2.5m) | 12s |
Table - waves today at Gansbaai. (Swell directed towards the surf break)
Updates in hr min s Forecast update imminent
Sunday 14 | Monday 15 | Tuesday 16 | Wed 17 | |||||||||||||||||||||
| 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 | |
Rating (10 max) | ||||||||||||||||||||||||
Swell Height Map |    |    |    |    | ||||||||||||||||||||
| Wave Height (m) & direction (?) | ||||||||||||||||||||||||
| Period(s) (?) | 12 | 12 | 12 | 12 | 12 | 12 | 11 | 11 | 12 | 12 | 12 | 12 | 12 | 12 | 12 | 12 | 12 | 12 | 12 | 12 | 12 | 12 | 14 | 14 |
Wave (?)Graph  | ||||||||||||||||||||||||
 kJ (?) | 2320 | 2027 | 1685 | 1557 | 1525 | 1807 | 1746 | 1746 | 2113 | 2259 | 2297 | 2302 | 2341 | 2269 | 2166 | 1914 | 1794 | 1573 | 1472 | 1624 | 1236 | 872 | 2698 | 3501 |
Wind (km/h) | ||||||||||||||||||||||||
| Wind State (?) onshore cross-onshore cross-shore cross-offshore offshore glassy | cross | glass | cross- on | cross- on | cross- on | glass | cross- off | off | off | glass | cross- on | cross- on | cross- on | glass | off | off | off | glass | on | on | on | on | cross- on | on |
High Tide / height (m) | 11:29AM 1.24 | 12:16AM 1.11 | 12:19PM 1.27 | 1:02AM 1.18 | 1:03PM 1.31 | 1:41AM 1.25 | ||||||||||||||||||
Low Tide / height (m) | 6:12PM 0.46 | 6:12AM 0.56 | 6:56PM 0.40 | 7:00AM 0.51 | 7:34PM 0.34 | |||||||||||||||||||
Sunday 14 | Monday 15 | Tuesday 16 | Wed 17 | |||||||||||||||||||||
| Sunrise | - | 5:22 | - | - | - | - | - | - | - | 5:22 | - | - | - | - | - | - | - | 5:24 | - | - | - | - | - | - |
| Sunset | - | - | - | - | 7:50 | - | - | - | - | - | - | - | 7:51 | - | - | - | - | - | - | - | 7:51 | - | - | - |
 |  | | | | | | | | | |  | | | | | | | | | | | |  | |
Rain (mm) | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | 1 |
| Temp. °C | 15 | 16 | 17 | 18 | 18 | 18 | 17 | 17 | 16 | 18 | 19 | 20 | 20 | 20 | 19 | 18 | 18 | 19 | 20 | 20 | 20 | 20 | 20 | 19 |
| Feels °C (?) | 14 | 15 | 15 | 15 | 16 | 18 | 16 | 17 | 15 | 18 | 19 | 19 | 18 | 21 | 19 | 18 | 18 | 20 | 18 | 17 | 16 | 16 | 16 | 16 |
- Map Icons:
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Live Wave Height (m)
Live Wind Speed (km/h)
Surf Rating (10 Max)
Ocean Swells (m)- Wind Speed (km/h)
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