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:
Y-Steps surfForecast / SA – Adelaide / Australia
48hr Weather and Surf, issued 9 am Friday 12 Dec 2025 ACDTForecast update in hr min s Forecast update imminent
Y-Steps surf forecast is for near shore open water. Breaking waves will often be smaller at less exposed spots.
Today's Y-Steps sea temperature is
19.5° C
(Which is 2.1°C warmer than normal for this time of year)How big are the waves at Y-Steps today?
The current surf forecast for Y-Steps at 3PM is: 0.1m 12s primary swell from a Southwest direction (forecast issued at 09:30am December 12). The wind direction is predicted to be cross-onshore.
| Time (ACDT) & Date | Wave Height | Wave Period |
|---|---|---|
| Morning (12 Dec) | 0.5ft (0.1m) | 12s |
| Afternoon (12 Dec) | 0.5ft (0.1m) | 12s |
| Evening (12 Dec) | 2ft (0.6m) | 3s |
Table - waves today at Y-Steps. (Swell directed towards the surf break)
Updates in hr min s Forecast update imminent
Friday 12 | Saturday 13 | Sunday 14 | Mon 15 | |||||||||||||||||||||
| 7 AM | 10 AM | 1 PM | 4 PM | 7 PM | 10 PM | 1 AM | 4 AM | 7 AM | 10 AM | 1 PM | 4 PM | 7 PM | 10 PM | 1 AM | 4 AM | 7 AM | 10 AM | 1 PM | 4 PM | 7 PM | 10 PM | 1 AM | 4 AM | |
Rating (10 max) | ||||||||||||||||||||||||
Swell Height Map |    |    |    |    | ||||||||||||||||||||
| Wave Height (m) & direction (?) | ||||||||||||||||||||||||
| Period(s) (?) | 12 | 12 | 12 | 12 | 12 | 3 | 4 | 4 | 4 | 4 | 4 | 4 | 4 | 4 | 4 | 4 | 4 | 4 | 5 | 4 | 5 | 5 | 5 | 3 |
Wave (?)Graph  | ||||||||||||||||||||||||
 kJ (?) | 5 | 5 | 5 | 5 | 5 | 8 | 17 | 12 | 13 | 10 | 10 | 24 | 13 | 10 | 11 | 14 | 18 | 23 | 19 | 24 | 39 | 36 | 24 | 5 |
Wind (km/h) | ||||||||||||||||||||||||
| Wind State (?) onshore cross-onshore cross-shore cross-offshore offshore glassy | off | cross | on | cross- on | cross | cross | cross | cross- off | cross | cross | cross- on | cross- on | cross- on | cross- on | cross- on | cross- on | cross- on | cross- on | cross- on | cross- on | cross | cross | cross | cross |
High Tide / height (m) | 8:21AM 1.60 | 9:22PM 1.28 | 9:00AM 1.40 | 10:50PM 1.33 | 9:56AM 1.19 | 1:03AM 1.45 | ||||||||||||||||||
Low Tide / height (m) | 3:03PM 0.57 | 2:49AM 0.84 | 3:45PM 0.66 | 4:40AM 1.02 | 4:46PM 0.77 | |||||||||||||||||||
Friday 12 | Saturday 13 | Sunday 14 | Mon 15 | |||||||||||||||||||||
| Sunrise | 5:54 | - | - | - | - | - | - | - | 5:54 | - | - | - | - | - | - | - | 5:54 | - | - | - | - | - | - | - |
| Sunset | - | - | - | - | 8:22 | - | - | - | - | - | - | - | 8:23 | - | - | - | - | - | - | - | 8:24 | - | - | - |
 |  | | | |  |  |  | | | | | |  | | | | | | | | | | | |
Rain (mm) | - | - | - | - | - | - | - | 1 | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - |
| Temp. °C | 25 | 28 | 29 | 30 | 30 | 22 | 19 | 18 | 17 | 22 | 23 | 22 | 19 | 15 | 14 | 14 | 15 | 16 | 19 | 18 | 15 | 13 | 12 | 12 |
| Feels °C (?) | 21 | 25 | 27 | 28 | 26 | 18 | 14 | 15 | 14 | 18 | 18 | 16 | 14 | 12 | 11 | 11 | 12 | 12 | 14 | 11 | 8 | 8 | 7 | 8 |
- Map Icons:
Break
Live Wave Height (m)
Live Wind Speed (km/h)
Surf Rating (10 Max)
Ocean Swells (m)- Wind Speed (km/h)
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