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 pm Tuesday 16 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
14.4° 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 12AM is: 1.9m 10s primary swell from a West-southwest direction and 1.5m 10s secondary swell from a South-southwest direction (forecast issued at 10:00pm December 16). The wind direction is predicted to be glassy and the swell rating is 4.
| Time (AEDT) & Date | Wave Height | Wave Period |
|---|---|---|
| Morning (17 Dec) | - | - |
| Afternoon (17 Dec) | - | - |
| Evening (17 Dec) | 6ft (1.9m) | 11s |
Table - waves today at Trial Harbour. (Swell directed towards the surf break)
Updates in hr min s Forecast update imminent
Tue 16 | Wednesday 17 | Thursday 18 | Friday 19 | |||||||||||||||||||||
| 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 | 5 PM | |
Rating (10 max) | ||||||||||||||||||||||||
Swell Height Map |    |    |    |    | ||||||||||||||||||||
| Wave Height (m) & direction (?) | ||||||||||||||||||||||||
| Period(s) (?) | 11 | 10 | 10 | 10 | 10 | 10 | 10 | 10 | 10 | 11 | 11 | 11 | 11 | 11 | 11 | 13 | 13 | 12 | 12 | 12 | 12 | 11 | 11 | 11 |
Wave (?)Graph  | ||||||||||||||||||||||||
 kJ (?) | 904 | 770 | 1044 | 900 | 730 | 626 | 569 | 527 | 616 | 716 | 743 | 771 | 771 | 745 | 627 | 1575 | 1369 | 1381 | 1319 | 1031 | 840 | 663 | 574 | 422 |
Wind (km/h) | ||||||||||||||||||||||||
| Wind State (?) onshore cross-onshore cross-shore cross-offshore offshore glassy | glass | glass | cross- off | cross- off | cross | cross- on | cross- on | cross- on | cross- on | glass | cross- off | cross- off | glass | glass | cross- on | glass | cross- off | off | cross- off | cross- off | off | glass | glass | glass |
High Tide / height (m) | 1:00AM 0.64 | 1:18AM 0.69 | 1:43AM 0.74 | |||||||||||||||||||||
Low Tide / height (m) | 3:57PM 0.15 | 4:42PM 0.13 | ||||||||||||||||||||||
Tue 16 | Wednesday 17 | Thursday 18 | Friday 19 | |||||||||||||||||||||
| Sunrise | - | - | - | - | 5:37 | - | - | - | - | - | - | - | 5:37 | - | - | - | - | - | - | - | 5:39 | - | - | - |
| Sunset | 8:50 | - | - | - | - | - | - | - | 8:51 | - | - | - | - | - | - | - | 8:52 | - | - | - | - | - | - | - |
 |  | | | | | | | | |  | |  | | | | | |  | |  | | | | |
Rain (mm) | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - |
| Temp. °C | 12 | 10 | 9 | 9 | 13 | 18 | 18 | 18 | 16 | 14 | 13 | 13 | 16 | 18 | 20 | 21 | 18 | 17 | 17 | 16 | 19 | 23 | 25 | 24 |
| Feels °C (?) | 11 | 9 | 7 | 7 | 11 | 14 | 14 | 15 | 14 | 13 | 11 | 10 | 14 | 17 | 18 | 20 | 17 | 16 | 16 | 14 | 18 | 22 | 25 | 24 |
- 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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