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:
Tweede Steen surfForecast / Cape Town / South Africa
48hr Weather and Surf, issued 7 pm Tuesday 16 Dec 2025 SASTForecast update in hr min s Forecast update imminent
Tweede Steen surf forecast is for near shore open water. Breaking waves will often be smaller at less exposed spots.
Today's Tweede Steen sea temperature is
15.2° C
(Which is 3.8°C colder than average for this time of year)How big are the waves at Tweede Steen today?
The current surf forecast for Tweede Steen at 12AM is: 2.5m 14s primary swell from a West-southwest direction and 0.2m 15s secondary swell from a West-northwest direction (forecast issued at 07:00pm December 16). The wind direction is predicted to be cross-onshore.
| Time (SAST) & Date | Wave Height | Wave Period |
|---|---|---|
| Morning (17 Dec) | - | - |
| Afternoon (17 Dec) | 7ft (2.2m) | 12s |
| Evening (17 Dec) | 8ft (2.4m) | 15s |
Table - waves today at Tweede Steen. (Swell directed towards the surf break)
Updates in hr min s Forecast update imminent
Tuesday 16 | Wednesday 17 | Thursday 18 | Friday 19 | |||||||||||||||||||||
| 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 | |
Rating (10 max) | ||||||||||||||||||||||||
Swell Height Map |    |    |    |    | ||||||||||||||||||||
| Wave Height (m) & direction (?) | ||||||||||||||||||||||||
| Period(s) (?) | 12 | 15 | 14 | 14 | 14 | 13 | 10 | 12 | 12 | 12 | 12 | 12 | 12 | 12 | 8 | 8 | 8 | 8 | 8 | 9 | 15 | 10 | 13 | 6 |
Wave (?)Graph  | ||||||||||||||||||||||||
 kJ (?) | 1047 | 2268 | 2483 | 2898 | 2889 | 2117 | 1834 | 1449 | 964 | 727 | 629 | 439 | 308 | 303 | 264 | 402 | 498 | 603 | 617 | 586 | 212 | 217 | 176 | 173 |
Wind (km/h) | ||||||||||||||||||||||||
| Wind State (?) onshore cross-onshore cross-shore cross-offshore offshore glassy | cross- on | cross | on | cross | cross- on | cross- on | cross- on | cross- on | cross- on | cross | cross | cross | cross | cross | cross- on | cross | cross | cross | cross | cross | cross | cross | cross | cross |
High Tide / height (m) | 1:40AM 1.22 | 1:41PM 1.31 | 2:15AM 1.27 | 2:18PM 1.35 | 2:49AM 1.32 | |||||||||||||||||||
Low Tide / height (m) | 7:31PM 0.31 | 7:41AM 0.43 | 8:06PM 0.26 | 8:18AM 0.38 | 8:40PM 0.22 | 8:53AM 0.34 | ||||||||||||||||||
Tuesday 16 | Wednesday 17 | Thursday 18 | Friday 19 | |||||||||||||||||||||
| Sunrise | - | - | - | - | - | 5:30 | - | - | - | - | - | - | - | 5:30 | - | - | - | - | - | - | - | 5:31 | - | - |
| Sunset | 7:52 | - | - | - | - | - | - | - | 7:52 | - | - | - | - | - | - | - | 7:53 | - | - | - | - | - | - | - |
 |  |  |  |  |  | | | | | | | | | | | | | | | | | | | |
Rain (mm) | - | - | 1 | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - |
| Temp. °C | 20 | 19 | 19 | 18 | 17 | 18 | 19 | 19 | 18 | 17 | 16 | 16 | 15 | 17 | 20 | 21 | 20 | 18 | 17 | 17 | 16 | 18 | 21 | 23 |
| Feels °C (?) | 18 | 19 | 18 | 15 | 14 | 14 | 14 | 12 | 12 | 12 | 11 | 12 | 12 | 14 | 16 | 17 | 15 | 12 | 14 | 15 | 14 | 15 | 17 | 19 |
- 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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