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:
The Trough surfForecast / SA – Adelaide / Australia
48hr Weather and Surf, issued 9 pm Friday 12 Dec 2025 ACDTForecast update in hr min s Forecast update imminent
The Trough surf forecast is for near shore open water. Breaking waves will often be smaller at less exposed spots.
Today's The Trough sea temperature is
19.1° C
(Which is 1.8°C warmer than normal for this time of year)How big are the waves at The Trough today?
The current surf forecast for The Trough at 12AM is: 0.7m 4s primary swell from a South direction and 0.1m 12s secondary swell from a West direction (forecast issued at 09:30pm December 12). The wind direction is predicted to be cross-offshore.
| Time (ACDT) & Date | Wave Height | Wave Period |
|---|---|---|
| Morning (13 Dec) | 2ft (0.6m) | 5s |
| Afternoon (13 Dec) | 2.5ft (0.7m) | 4s |
| Evening (13 Dec) | 1.5ft (0.5m) | 4s |
Table - waves today at The Trough. (Swell directed towards the surf break)
Updates in hr min s Forecast update imminent
Fri 12 | Saturday 13 | Sunday 14 | Monday 15 | |||||||||||||||||||||
| 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 | 7 AM | 10 AM | 1 PM | 4 PM | |
Rating (10 max) | ||||||||||||||||||||||||
Swell Height Map |    |    |    |    | ||||||||||||||||||||
| Wave Height (m) & direction (?) | ||||||||||||||||||||||||
| Period(s) (?) | 12 | 4 | 5 | 5 | 5 | 5 | 3 | 4 | 4 | 4 | 4 | 4 | 4 | 5 | 5 | 5 | 4 | 5 | 4 | 3 | 3 | 3 | 3 | 4 |
Wave (?)Graph  | ||||||||||||||||||||||||
 kJ (?) | 5 | 9 | 21 | 20 | 20 | 11 | 9 | 17 | 11 | 9 | 10 | 13 | 24 | 24 | 23 | 30 | 35 | 29 | 15 | 5 | 5 | 5 | 5 | 12 |
Wind (km/h) | ||||||||||||||||||||||||
| Wind State (?) onshore cross-onshore cross-shore cross-offshore offshore glassy | cross- off | cross- off | cross- off | cross- off | cross- off | cross- off | cross | cross | cross | cross | cross- on | cross- on | cross- on | cross- on | cross- on | cross | cross | cross- off | cross- off | cross- off | cross- off | cross- off | cross- off | cross- off |
High Tide / height (m) | 9:19PM 1.19 | 8:38AM 1.30 | 10:29PM 1.16 | 8:35AM 1.06 | 1:15AM 1.20 | 2:03PM 0.77 | ||||||||||||||||||
Low Tide / height (m) | 2:41AM 0.75 | 3:30PM 0.50 | 3:54AM 0.93 | 3:59PM 0.63 | 1:33PM 0.77 | |||||||||||||||||||
Fri 12 | Saturday 13 | Sunday 14 | Monday 15 | |||||||||||||||||||||
| Sunrise | - | - | - | - | 5:54 | - | - | - | - | - | - | - | 5:54 | - | - | - | - | - | - | - | 5:54 | - | - | - |
| Sunset | 8:23 | - | - | - | - | - | - | - | 8:23 | - | - | - | - | - | - | - | 8:24 | - | - | - | - | - | - | - |
 |  |  | |  | | | | |  | | | | | | | | | | | | | | | |
Rain (mm) | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - |
| Temp. °C | 29 | 21 | 17 | 17 | 16 | 21 | 23 | 22 | 18 | 14 | 14 | 14 | 15 | 18 | 20 | 18 | 14 | 12 | 12 | 11 | 13 | 16 | 18 | 16 |
| Feels °C (?) | 25 | 17 | 13 | 15 | 13 | 18 | 17 | 17 | 14 | 12 | 12 | 10 | 11 | 13 | 14 | 11 | 8 | 7 | 8 | 8 | 9 | 11 | 12 | 9 |
- 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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