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:
Trial Harbour surfForecast / TAS – West Coast / Australia
48hr Weather and Surf, issued 10 am Thursday 11 Dec 2025 AEDTForecast update in hr min s Forecast update imminent
Trial Harbour surf forecast is for near shore open water. Breaking waves will often be smaller at less exposed spots.
Today's Trial Harbour sea temperature is
13.7° C
(Which is normal for this time of year)How big are the waves at Trial Harbour today?
The current surf forecast for Trial Harbour at 5PM is: 2.5m 12s primary swell from a West-southwest direction and 0.5m 9s secondary swell from a South direction (forecast issued at 10:00am December 11). The wind direction is predicted to be cross-shore.
| Time (AEDT) & Date | Wave Height | Wave Period |
|---|---|---|
| Morning (11 Dec) | 10ft (3.0m) | 12s |
| Afternoon (11 Dec) | 8ft (2.5m) | 12s |
| Evening (11 Dec) | 8ft (2.4m) | 12s |
Table - waves today at Trial Harbour. (Swell directed towards the surf break)
Updates in hr min s Forecast update imminent
Thursday 11 | Friday 12 | Saturday 13 | Sun 14 | |||||||||||||||||||||
| 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 | 5 AM | |
Rating (10 max) | ||||||||||||||||||||||||
Swell Height Map |    |    |    |    | ||||||||||||||||||||
| Wave Height (m) & direction (?) | ||||||||||||||||||||||||
| Period(s) (?) | 12 | 12 | 12 | 12 | 12 | 12 | 12 | 13 | 13 | 13 | 13 | 13 | 13 | 12 | 12 | 12 | 12 | 14 | 14 | 14 | 13 | 13 | 13 | 13 |
Wave (?)Graph  | ||||||||||||||||||||||||
 kJ (?) | 2299 | 2129 | 2013 | 1888 | 1624 | 1613 | 1596 | 1435 | 1320 | 1250 | 1100 | 998 | 914 | 808 | 746 | 795 | 864 | 1922 | 2202 | 2161 | 1915 | 1830 | 1793 | 2182 |
Wind (km/h) | ||||||||||||||||||||||||
| Wind State (?) onshore cross-onshore cross-shore cross-offshore offshore glassy | glass | cross- on | cross- on | cross | cross | glass | cross- off | cross- off | glass | glass | cross- on | glass | cross- off | cross- off | glass | glass | cross | cross- on | cross- on | on | cross- on | cross | cross- on | on |
High Tide / height (m) | 3:02PM 0.44 | 5:03AM 0.64 | 4:28PM 0.41 | 5:16AM 0.60 | 6:50PM 0.40 | |||||||||||||||||||
Low Tide / height (m) | 11:18AM 0.39 | 9:34PM 0.18 | 11:59AM 0.34 | 10:00PM 0.28 | 12:45PM 0.29 | 10:01PM 0.38 | ||||||||||||||||||
Thursday 11 | Friday 12 | Saturday 13 | Sun 14 | |||||||||||||||||||||
| Sunrise | 5:37 | - | - | - | - | - | - | - | 5:37 | - | - | - | - | - | - | - | 5:37 | - | - | - | - | - | - | - |
| Sunset | - | - | - | - | 8:46 | - | - | - | - | - | - | - | 8:46 | - | - | - | - | - | - | - | 8:47 | - | - | - |
 | | | | |  | | | | |  | | | | |  |  | | | | |  |  |  | |
Rain (mm) | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | 3 | 6 |
| Temp. °C | 10 | 13 | 14 | 13 | 12 | 11 | 10 | 9 | 12 | 19 | 21 | 20 | 19 | 15 | 13 | 12 | 13 | 15 | 15 | 15 | 13 | 12 | 11 | 12 |
| Feels °C (?) | 9 | 11 | 11 | 10 | 10 | 10 | 8 | 7 | 10 | 17 | 19 | 20 | 18 | 14 | 13 | 12 | 11 | 13 | 12 | 12 | 10 | 8 | 6 | 5 |
- 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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