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 Onemana at 10AM is: 0.9m 8s primary swell from a East-northeast direction and 0.2m 13s secondary swell from a North-northeast direction (forecast issued at 06:00am December 15). The wind direction is predicted to be cross-onshore.
| Time (NZDT) & Date | Wave Height | Wave Period |
|---|---|---|
| Morning (15 Dec) | 3ft (0.9m) | 8s |
| Afternoon (15 Dec) | 3ft (0.9m) | 7s |
| Evening (15 Dec) | 3ft (0.9m) | 7s |
Table - waves today at Onemana. (Swell directed towards the surf break)
Monday 15 | Tuesday 16 | Wednesday 17 | Thu 18 | |||||||||||||||||||||
| 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 | 1 AM | |
Rating (10 max) | ||||||||||||||||||||||||
Swell Height Map | ||||||||||||||||||||||||
| Wave Height (m) & direction (?) | NE | ENE | ENE | ENE | ENE | NE | ENE | NE | NE | NE | NE | ENE | N | N | N | N | ENE | ENE | ENE | NE | ENE | ENE | ENE | E |
| Period(s) (?) | 8 | 7 | 8 | 8 | 7 | 7 | 7 | 7 | 7 | 7 | 7 | 8 | 5 | 5 | 6 | 6 | 7 | 7 | 8 | 7 | 8 | 8 | 8 | 9 |
Wave (?)Graph | ||||||||||||||||||||||||
| 57 | 104 | 88 | 88 | 90 | 104 | 93 | 89 | 105 | 86 | 102 | 62 | 73 | 83 | 105 | 67 | 40 | 43 | 33 | 56 | 50 | 51 | 47 | 39 | |
Wind (km/h) | ENE | NE | NNE | NE | N | NNE | N | NNW | NNW | NNW | N | N | N | NNW | W | WSW | WSW | WSW | WSW | WSW | SW | SW | WSW | SW |
| Wind State (?) onshore cross-onshore cross-shore cross-offshore offshore glassy | cross- on | cross- on | cross- on | cross- on | cross | cross | cross | cross- off | cross- off | cross- off | cross | cross | cross | cross- off | off | off | off | off | cross- off | cross- off | cross- off | cross- off | cross- off | cross- off |
High Tide / height (m) | 3:58AM 1.52 | 4:09PM 1.57 | 4:50AM 1.53 | 4:59PM 1.54 | 5:39AM 1.55 | 5:46PM 1.54 | ||||||||||||||||||
Low Tide / height (m) | 9:58AM 0.49 | 10:29PM 0.37 | 10:51AM 0.51 | 11:16PM 0.37 | 11:42AM 0.51 | 12:03AM 0.36 | ||||||||||||||||||
Monday 15 | Tuesday 16 | Wednesday 17 | Thu 18 | |||||||||||||||||||||
| Sunrise | - | 5:50 | - | - | - | - | - | - | - | 5:50 | - | - | - | - | - | - | - | 5:50 | - | - | - | - | - | - |
| Sunset | - | - | - | - | - | 8:31 | - | - | - | - | - | - | - | 8:31 | - | - | - | - | - | - | - | 8:32 | - | - |
Rain (mm) | - | - | - | - | - | - | - | - | - | - | - | - | - | 1 | 4 | - | - | - | - | - | - | - | - | - |
| Temp. °C | 17 | 17 | 19 | 20 | 20 | 19 | 17 | 16 | 16 | 17 | 21 | 22 | 22 | 18 | 17 | 15 | 14 | 14 | 17 | 20 | 21 | 19 | 15 | 13 |
| Feels °C (?) | 15 | 14 | 16 | 17 | 17 | 17 | 15 | 14 | 15 | 15 | 18 | 18 | 18 | 16 | 16 | 12 | 11 | 11 | 12 | 14 | 15 | 14 | 11 | 10 |

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

Surf-forecast is providing a free, all-access pass to our premium features and 12-day forecasts all weekend.

Previously used in our snow jackets for mountain conditions, PrimaLoft® technology is making its debut in the surf industry. The aim is to bring mountain-grade warmth to the waves.

Surf-Forecast recently helped the 21-year-old Canadian pro surfer and adventurer score some cold water perfection at home.
Discover more articles and updates in the Greenroom.
The surf report / weather widget below is available to embed on third party websites free of charge and provides a summary of our Onemana surf forecast. Simply grab the html code snippet that we provide and paste it into your own site. You can choose your preferred language and metric/imperial units for the surf forecast feed to suit users of your site. Click here to get the code.

