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 Friday 12 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 6PM is: 1.7m 13s primary swell from a West-southwest direction and 0.4m 7s secondary swell from a South-southwest direction (forecast issued at 10:00am December 12). The wind direction is predicted to be glassy and the swell rating is 4.
| Time (AEDT) & Date | Wave Height | Wave Period |
|---|---|---|
| Morning (12 Dec) | 7ft (2.1m) | 13s |
| Afternoon (12 Dec) | 6ft (1.8m) | 13s |
| Evening (12 Dec) | 5ft (1.6m) | 12s |
Table - waves today at Trial Harbour. (Swell directed towards the surf break)
Updates in hr min s Forecast update imminent
Friday 12 | Saturday 13 | Sunday 14 | Mon 15 | |||||||||||||||||||||
| 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) (?) | 13 | 13 | 13 | 13 | 13 | 12 | 12 | 12 | 12 | 14 | 14 | 14 | 13 | 13 | 13 | 8 | 10 | 12 | 13 | 14 | 14 | 14 | 14 | 14 |
Wave (?)Graph  | ||||||||||||||||||||||||
 kJ (?) | 1320 | 1250 | 1100 | 1100 | 914 | 808 | 746 | 795 | 948 | 1922 | 2202 | 2064 | 1915 | 1830 | 1597 | 1741 | 3978 | 8410 | 16028 | 20462 | 22139 | 21634 | 21000 | 20850 |
Wind (km/h) | ||||||||||||||||||||||||
| Wind State (?) onshore cross-onshore cross-shore cross-offshore offshore glassy | glass | glass | cross | glass | glass | cross- off | glass | glass | cross- on | cross- on | on | cross- on | cross- on | cross | cross- on | on | on | on | on | on | on | cross- on | cross- on | cross- on |
High Tide / height (m) | 5:03AM 0.64 | 4:28PM 0.41 | 5:16AM 0.60 | 6:50PM 0.40 | 5:17AM 0.56 | 4:32AM 0.53 | ||||||||||||||||||
Low Tide / height (m) | 11:59AM 0.34 | 10:00PM 0.28 | 12:45PM 0.29 | 10:01PM 0.38 | 1:35PM 0.25 | |||||||||||||||||||
Friday 12 | Saturday 13 | Sunday 14 | Mon 15 | |||||||||||||||||||||
| Sunrise | 5:37 | - | - | - | - | - | - | - | 5:37 | - | - | - | - | - | - | - | 5:37 | - | - | - | - | - | - | - |
| Sunset | - | - | - | - | 8:46 | - | - | - | - | - | - | - | 8:47 | - | - | - | - | - | - | - | 8:49 | - | - | - |
 | |  |  | |  |  |  | | | | | | |  | |  | |  | | | |  | | |
Rain (mm) | - | - | - | - | - | - | - | - | - | - | - | - | - | - | 2 | 4 | 2 | 2 | 2 | 2 | 2 | 1 | 2 | 2 |
| Temp. °C | 12 | 19 | 22 | 18 | 18 | 15 | 13 | 13 | 14 | 15 | 16 | 15 | 14 | 13 | 12 | 12 | 10 | 11 | 10 | 10 | 9 | 10 | 9 | 8 |
| Feels °C (?) | 11 | 17 | 20 | 17 | 18 | 14 | 13 | 13 | 13 | 13 | 14 | 12 | 11 | 9 | 6 | 5 | 2 | 2 | 0 | 1 | 0 | 1 | 1 | 0 |
- 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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