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:
Muizenberg surfForecast / Cape Town / South Africa
48hr Weather and Surf, issued 7 am Saturday 13 Dec 2025 SASTForecast update in hr min s Forecast update imminent
Today's Muizenberg sea temperature is
17.4° C
(Which is 1.7°C colder than average for this time of year)How big are the waves at Muizenberg today?
The current surf forecast for Muizenberg at 12PM is: 2.5m 13s primary swell from a Southwest direction and 0.2m 11s secondary swell from a South direction (forecast issued at 07:00am December 13). The wind direction is predicted to be cross-shore.
| Time (SAST) & Date | Wave Height | Wave Period |
|---|---|---|
| Morning (13 Dec) | 10ft (3.0m) | 14s |
| Afternoon (13 Dec) | 8ft (2.5m) | 13s |
| Evening (13 Dec) | 7.5ft (2.3m) | 13s |
Table - waves today at Muizenberg. (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) (?) | 14 | 14 | 13 | 13 | 13 | 13 | 13 | 12 | 12 | 12 | 12 | 12 | 12 | 12 | 11 | 11 | 12 | 12 | 12 | 12 | 12 | 12 | 12 | 12 |
Wave (?)Graph  | ||||||||||||||||||||||||
 kJ (?) | 3325 | 2925 | 2305 | 2114 | 1886 | 1645 | 1497 | 1249 | 1048 | 944 | 869 | 711 | 644 | 698 | 728 | 728 | 865 | 1042 | 1059 | 1150 | 1083 | 1100 | 1019 | 882 |
Wind (km/h) | ||||||||||||||||||||||||
| Wind State (?) onshore cross-onshore cross-shore cross-offshore offshore glassy | cross | cross | cross | cross | cross | cross- on | cross- on | on | on | on | cross- on | cross- on | cross- on | cross- on | on | on | on | cross- on | cross- on | cross- on | cross- on | cross- on | cross- on | cross- on |
High Tide / height (m) | 10:28AM 1.20 | 11:17PM 1.03 | 11:27AM 1.20 | 12:15AM 1.08 | 12:18PM 1.23 | 1:01AM 1.15 | ||||||||||||||||||
Low Tide / height (m) | 5:14PM 0.47 | 5:11AM 0.56 | 6:10PM 0.43 | 6:11AM 0.53 | 6:54PM 0.37 | |||||||||||||||||||
Saturday 13 | Sunday 14 | Monday 15 | Tue 16 | |||||||||||||||||||||
| Sunrise | - | 5:28 | - | - | - | - | - | - | - | 5:28 | - | - | - | - | - | - | - | 5:28 | - | - | - | - | - | - |
| Sunset | - | - | - | - | 7:52 | - | - | - | - | - | - | - | 7:52 | - | - | - | - | - | - | - | 7:52 | - | - | - |
 |  | | |  |  | | | | | | | | | | | | | | | | | | | |
Rain (mm) | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - |
| Temp. °C | 17 | 17 | 17 | 17 | 18 | 17 | 16 | 16 | 15 | 16 | 17 | 18 | 18 | 18 | 18 | 17 | 17 | 18 | 20 | 21 | 21 | 20 | 19 | 19 |
| Feels °C (?) | 13 | 12 | 13 | 13 | 14 | 14 | 13 | 13 | 13 | 14 | 14 | 15 | 15 | 16 | 17 | 16 | 16 | 17 | 19 | 19 | 19 | 18 | 18 | 19 |
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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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