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 current surf forecast for Trestles at 7AM is: 0.1m 10s primary swell from a Southeast direction and 0.1m 8s secondary swell from a East direction (forecast issued at 12:00am December 15). An open ocean swell of 1.1m 4s is not directed at the surf break. The wind direction is predicted to be offshore.
| Time (EST) & Date | Wave Height | Wave Period |
|---|---|---|
| Morning (15 Dec) | 0.5ft (0.1m) | 10s |
| Afternoon (15 Dec) | 0.5ft (0.1m) | 11s |
| Evening (15 Dec) | 0.5ft (0.1m) | 11s |
Table - waves today at Trestles. (Swell directed towards the surf break)
Monday 15 | Tuesday 16 | Wednesday 17 | ||||||||||||||||||||||
| 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 | 7 PM | |
Rating (10 max) | ||||||||||||||||||||||||
Swell Height Map | ||||||||||||||||||||||||
| Wave Height (m) & direction (?) | SSE | SSE | SSE | SE | SE | SE | SE | SE | SE | SE | SE | SSW | SSW | SE | ESE | ESE | SE | SE | SSW | SSW | SSW | SSW | S | S |
| Period(s) (?) | 8 | 8 | 9 | 10 | 10 | 10 | 11 | 11 | 11 | 11 | 11 | 4 | 4 | 11 | 11 | 11 | 11 | 10 | 4 | 4 | 5 | 5 | 6 | 7 |
Wave (?)Graph | ||||||||||||||||||||||||
| 6 | 14 | 8 | 4 | 4 | 4 | 4 | 4 | 4 | 4 | 5 | 5 | 5 | 5 | 11 | 11 | 18 | 16 | 28 | 39 | 66 | 71 | 47 | 42 | |
Wind (km/h) | NW | NW | NW | NW | NW | WNW | WNW | W | WSW | SW | WSW | WNW | WNW | WNW | W | SSW | SSW | SSW | SW | SW | SW | SW | SW | WSW |
| Wind State (?) onshore cross-onshore cross-shore cross-offshore offshore glassy | off | off | off | off | off | off | cross- off | cross- off | cross- off | cross | cross- off | cross- off | off | cross- off | cross- off | cross | cross | cross | cross | cross | cross | cross | cross | cross- off |
High Tide / height (m) | 4:22AM 1.35 | 4:38PM 1.11 | 5:10AM 1.40 | 5:29PM 1.12 | 5:53AM 1.44 | 6:15PM 1.15 | ||||||||||||||||||
Low Tide / height (m) | 9:47PM 0.10 | 10:25AM 0.15 | 10:29PM 0.09 | 11:11AM 0.09 | 11:10PM 0.09 | 11:56AM 0.05 | ||||||||||||||||||
Monday 15 | Tuesday 16 | Wednesday 17 | ||||||||||||||||||||||
| Sunrise | - | - | - | - | 7:09 | - | - | - | - | - | - | - | 7:11 | - | - | - | - | - | - | - | 7:11 | - | - | - |
| Sunset | - | - | - | - | - | - | 4:37 | - | - | - | - | - | - | - | 4:37 | - | - | - | - | - | - | - | 4:37 | - |
Rain (mm) | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - |
| Temp. °C | -6 | -7 | -8 | -8 | -7 | -5 | -4 | -4 | -3 | -1 | -1 | -2 | -2 | -2 | -1 | 1 | 3 | 4 | 3 | 2 | 3 | 6 | 7 | 7 |
| Feels °C (?) | -19 | -20 | -20 | -19 | -17 | -14 | -12 | -12 | -9 | -9 | -9 | -9 | -9 | -8 | -7 | -4 | -4 | -4 | -5 | -6 | -5 | -2 | 0 | 1 |

70-foot plus waves predicted for Portuguese big wave tow surfing competition.

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