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:
Gourits Mouth surfForecast / Overberg / South Africa
48hr Weather and Surf, issued 7 am Saturday 13 Dec 2025 SASTForecast update in hr min s Forecast update imminent
Gourits Mouth surf forecast is for near shore open water. Breaking waves will often be smaller at less exposed spots.
Today's Gourits Mouth sea temperature is
21.1° C
(Which is 1.1°C warmer than normal for this time of year)How big are the waves at Gourits Mouth today?
The current surf forecast for Gourits Mouth at 2PM is: 3.5m 13s primary swell from a Southwest direction (forecast issued at 07:00am December 13). An open ocean swell of 0.3m 10s is not directed at the surf break. The wind direction is predicted to be cross-offshore and the swell rating is 11.
| Time (SAST) & Date | Wave Height | Wave Period |
|---|---|---|
| Morning (13 Dec) | 11ft (3.5m) | 12s |
| Afternoon (13 Dec) | 11ft (3.5m) | 13s |
| Evening (13 Dec) | 10ft (3.0m) | 13s |
Table - waves today at Gourits Mouth. (Swell directed towards the surf break)
Updates in hr min s Forecast update imminent
Saturday 13 | Sunday 14 | Monday 15 | Tue 16 | |||||||||||||||||||||
| 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 | 14 | 13 | 13 | 13 | 13 | 13 | 13 | 12 | 12 | 12 | 12 | 12 | 12 | 12 | 12 | 12 | 12 | 12 | 12 | 12 | 12 | 12 |
Wave (?)Graph  | ||||||||||||||||||||||||
 kJ (?) | 3114 | 3377 | 5898 | 4689 | 3817 | 3254 | 2972 | 2660 | 2369 | 1897 | 1638 | 1427 | 1427 | 1324 | 1765 | 1968 | 1968 | 2034 | 2293 | 2397 | 2269 | 2148 | 2065 | 1985 |
Wind (km/h) | ||||||||||||||||||||||||
| Wind State (?) onshore cross-onshore cross-shore cross-offshore offshore glassy | off | off | cross- off | cross- off | cross- off | cross- off | cross- off | glass | cross- off | glass | cross- on | cross- on | cross- on | on | cross- on | glass | glass | cross- on | cross- on | cross- on | cross- on | on | on | cross- on |
High Tide / height (m) | 10:51AM 1.43 | 11:37PM 1.23 | 11:56AM 1.46 | 12:40AM 1.30 | 12:48PM 1.51 | 1:26AM 1.39 | ||||||||||||||||||
Low Tide / height (m) | 5:36PM 0.68 | 5:26AM 0.72 | 6:36PM 0.61 | 6:32AM 0.68 | 7:21PM 0.53 | |||||||||||||||||||
Saturday 13 | Sunday 14 | Monday 15 | Tue 16 | |||||||||||||||||||||
| Sunrise | - | 5:13 | - | - | - | - | - | - | - | 5:13 | - | - | - | - | - | - | - | 5:13 | - | - | - | - | - | - |
| Sunset | - | - | - | - | 7:38 | - | - | - | - | - | - | - | 7:38 | - | - | - | - | - | - | - | 7:39 | - | - | - |
 |  |  | |  |  |  | |  | | | | | | | | | | | | | | | | |
Rain (mm) | 1 | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - |
| Temp. °C | 16 | 18 | 19 | 19 | 18 | 17 | 17 | 17 | 16 | 17 | 19 | 19 | 18 | 17 | 17 | 17 | 17 | 18 | 20 | 21 | 20 | 19 | 19 | 18 |
| Feels °C (?) | 10 | 10 | 12 | 12 | 12 | 14 | 15 | 16 | 14 | 16 | 17 | 16 | 15 | 15 | 16 | 17 | 17 | 18 | 19 | 18 | 17 | 18 | 18 | 18 |
- 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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