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 Montara at 10AM is: 0.6m 9s primary swell from a West direction and 0.3m 14s secondary swell from a Southwest direction (forecast issued at 03:00am December 15). The wind direction is predicted to be cross-shore.
| Time (PST) & Date | Wave Height | Wave Period |
|---|---|---|
| Morning (15 Dec) | 2ft (0.6m) | 9s |
| Afternoon (15 Dec) | 2ft (0.6m) | 9s |
| Evening (15 Dec) | 1.5ft (0.4m) | 11s |
Table - waves today at Montara. (Swell directed towards the surf break)
Monday 15 | Tuesday 16 | Wednesday 17 | ||||||||||||||||||||||
| 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 | 10 PM | |
Rating (10 max) | ||||||||||||||||||||||||
Swell Height Map | ||||||||||||||||||||||||
| Wave Height (m) & direction (?) | W | W | W | W | W | W | W | WNW | WNW | W | W | W | W | W | W | W | W | W | W | W | W | W | W | W |
| Period(s) (?) | 10 | 10 | 10 | 9 | 9 | 9 | 9 | 11 | 10 | 10 | 10 | 12 | 12 | 12 | 12 | 12 | 12 | 12 | 12 | 12 | 12 | 12 | 12 | 12 |
Wave (?)Graph | ||||||||||||||||||||||||
| 71 | 68 | 65 | 58 | 56 | 55 | 37 | 38 | 144 | 244 | 296 | 714 | 805 | 816 | 816 | 819 | 805 | 714 | 702 | 617 | 607 | 594 | 596 | 607 | |
Wind (km/h) | NE | NE | NNE | NNE | N | N | N | NW | NNW | N | ENE | NNW | NNW | NW | WNW | SSW | SSW | SSW | WSW | NW | NW | NW | NW | NW |
| Wind State (?) onshore cross-onshore cross-shore cross-offshore offshore glassy | cross | cross | cross | cross | cross- on | cross- on | cross- on | on | on | glass | glass | glass | on | on | glass | cross- off | cross- off | cross- off | cross- on | glass | on | on | on | on |
High Tide / height (m) | 6:51AM 1.71 | 8:49PM 1.16 | 7:23AM 1.73 | 9:43PM 1.22 | 7:56AM 1.75 | |||||||||||||||||||
Low Tide / height (m) | 12:34AM 0.73 | 2:06PM 0.07 | 1:21AM 0.85 | 2:44PM -0.04 | 2:05AM 0.93 | 3:19PM -0.12 | ||||||||||||||||||
Monday 15 | Tuesday 16 | Wednesday 17 | ||||||||||||||||||||||
| Sunrise | - | - | - | 7:16 | - | - | - | - | - | - | - | 7:16 | - | - | - | - | - | - | - | 7:18 | - | - | - | - |
| Sunset | - | - | - | - | - | 4:52 | - | - | - | - | - | - | - | 4:52 | - | - | - | - | - | - | - | 4:52 | - | - |
Rain (mm) | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | 1 | 1 | 1 | - | - | - | - |
| Temp. °C | 8 | 9 | 10 | 13 | 15 | 15 | 15 | 14 | 14 | 14 | 14 | 15 | 17 | 16 | 16 | 16 | 16 | 15 | 15 | 15 | 14 | 13 | 12 | 11 |
| Feels °C (?) | 5 | 5 | 6 | 10 | 11 | 11 | 13 | 12 | 13 | 14 | 14 | 15 | 17 | 16 | 17 | 17 | 16 | 15 | 15 | 15 | 12 | 10 | 9 | 8 |

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

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