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:
Devonport Rivermouth surfForecast / TAS – North Coast / Australia
48hr Weather and Surf, issued 10 pm Friday 12 Dec 2025 AEDTForecast update in hr min s Forecast update imminent
Devonport Rivermouth surf forecast is for near shore open water. Breaking waves will often be smaller at less exposed spots.
Today's Devonport Rivermouth sea temperature is
14.5° C
(Which is slightly cooler than normal)How big are the waves at Devonport Rivermouth today?
The current surf forecast for Devonport Rivermouth at 4AM is: 0.9m 6s primary swell from a Northeast direction and 0.1m 13s secondary swell from a Northwest direction (forecast issued at 10:00pm December 12). The wind direction is predicted to be cross-offshore.
| Time (AEDT) & Date | Wave Height | Wave Period |
|---|---|---|
| Morning (13 Dec) | 2.5ft (0.8m) | 8s |
| Afternoon (13 Dec) | 2ft (0.6m) | 8s |
| Evening (13 Dec) | 3.5ft (1.1m) | 5s |
Table - waves today at Devonport Rivermouth. (Swell directed towards the surf break)
Updates in hr min s Forecast update imminent
Fri 12 | Saturday 13 | Sunday 14 | Monday 15 | |||||||||||||||||||||
| 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) (?) | 6 | 6 | 6 | 7 | 8 | 8 | 8 | 8 | 5 | 5 | 5 | 6 | 6 | 7 | 7 | 8 | 7 | 7 | 7 | 6 | 6 | 6 | 14 | 14 |
Wave (?)Graph  | ||||||||||||||||||||||||
 kJ (?) | 47 | 58 | 71 | 63 | 82 | 60 | 46 | 28 | 51 | 37 | 70 | 148 | 254 | 290 | 423 | 447 | 363 | 238 | 186 | 143 | 116 | 75 | 51 | 30 |
Wind (km/h) | ||||||||||||||||||||||||
| Wind State (?) onshore cross-onshore cross-shore cross-offshore offshore glassy | cross- on | cross- off | cross- off | cross- off | glass | cross- on | cross- on | cross- on | cross | cross | cross | cross | cross- off | cross- off | cross- off | cross- off | cross- off | cross- off | cross- off | cross- off | cross- off | cross- off | cross- off | cross- off |
High Tide / height (m) | 6:25PM 2.90 | 7:00AM 3.03 | 7:18PM 2.80 | 7:42AM 2.97 | 8:10PM 2.74 | 8:24AM 2.94 | ||||||||||||||||||
Low Tide / height (m) | 12:37AM 0.82 | 1:12PM 1.00 | 1:21AM 0.99 | 1:58PM 1.00 | 2:05AM 1.13 | 2:44PM 0.98 | ||||||||||||||||||
Fri 12 | Saturday 13 | Sunday 14 | Monday 15 | |||||||||||||||||||||
| Sunrise | - | - | - | - | 5:35 | - | - | - | - | - | - | - | 5:35 | - | - | - | - | - | - | - | 5:35 | - | - | - |
| Sunset | 8:39 | - | - | - | - | - | - | - | 8:40 | - | - | - | - | - | - | - | 8:42 | - | - | - | - | - | - | - |
 |  | |  |  | |  | | | | | | | | | | |  | | | | | | | |
Rain (mm) | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - |
| Temp. °C | 16 | 14 | 14 | 14 | 16 | 19 | 19 | 20 | 19 | 15 | 13 | 14 | 14 | 14 | 13 | 13 | 10 | 10 | 9 | 9 | 10 | 13 | 15 | 15 |
| Feels °C (?) | 15 | 13 | 13 | 13 | 17 | 18 | 17 | 15 | 15 | 10 | 8 | 9 | 8 | 6 | 4 | 5 | 2 | 3 | 2 | 2 | 3 | 6 | 8 | 8 |
- 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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