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 6PM is: 1.0m 8s primary swell from a Northeast direction and 0.7m 8s secondary swell from a East direction, 0.3m 2s secondary swell from a Northeast direction (forecast issued at 12:00pm December 12). The wind direction is predicted to be cross-onshore.
| Time (NZDT) & Date | Wave Height | Wave Period |
|---|---|---|
| Morning (12 Dec) | 3.5ft (1.1m) | 8s |
| Afternoon (12 Dec) | 3.5ft (1.0m) | 8s |
| Evening (12 Dec) | 3ft (0.9m) | 8s |
Table - waves today at Onemana. (Swell directed towards the surf break)
Friday 12 | Saturday 13 | Sunday 14 | Monday 15 | |||||||||||||||||||||
| 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 | 4 AM | 7 AM | |
Rating (10 max) | ||||||||||||||||||||||||
Swell Height Map | ||||||||||||||||||||||||
| Wave Height (m) & direction (?) | NE | NE | NE | NE | NE | E | E | ESE | ESE | E | E | E | ENE | ENE | ENE | ENE | E | ENE | ENE | ENE | ENE | ENE | ENE | ENE |
| Period(s) (?) | 8 | 8 | 8 | 8 | 8 | 8 | 8 | 7 | 7 | 6 | 8 | 8 | 8 | 8 | 7 | 7 | 6 | 6 | 6 | 6 | 6 | 6 | 6 | 7 |
Wave (?)Graph | ||||||||||||||||||||||||
| 156 | 132 | 129 | 109 | 93 | 135 | 118 | 111 | 73 | 69 | 102 | 74 | 87 | 163 | 171 | 118 | 81 | 68 | 68 | 82 | 101 | 101 | 90 | 118 | |
Wind (km/h) | SW | SW | S | NE | NE | SE | SE | SSE | SE | ESE | NE | N | NNE | NNE | N | W | E | NE | NE | NNE | NE | ENE | ENE | ENE |
| Wind State (?) onshore cross-onshore cross-shore cross-offshore offshore glassy | cross- off | cross- off | cross | cross- on | cross- on | cross- on | cross- on | cross- on | cross- on | on | cross- on | cross | cross | cross | cross | glass | on | cross- on | cross- on | cross- on | cross- on | cross- on | on | cross- on |
High Tide / height (m) | 1:34PM 1.76 | 2:05AM 1.58 | 2:27PM 1.68 | 3:02AM 1.54 | 3:19PM 1.61 | 3:58AM 1.52 | ||||||||||||||||||
Low Tide / height (m) | 7:17AM 0.27 | 7:57PM 0.28 | 8:10AM 0.36 | 8:49PM 0.32 | 9:04AM 0.44 | 9:40PM 0.35 | ||||||||||||||||||
Friday 12 | Saturday 13 | Sunday 14 | Monday 15 | |||||||||||||||||||||
| Sunrise | - | - | - | - | - | - | - | 5:48 | - | - | - | - | - | - | - | 5:50 | - | - | - | - | - | - | - | 5:50 |
| Sunset | - | - | - | 8:29 | - | - | - | - | - | - | - | 8:30 | - | - | - | - | - | - | - | 8:30 | - | - | - | - |
Rain (mm) | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - |
| Temp. °C | 18 | 21 | 22 | 22 | 17 | 17 | 14 | 14 | 17 | 19 | 20 | 19 | 16 | 16 | 15 | 16 | 19 | 19 | 19 | 18 | 16 | 16 | 16 | 17 |
| Feels °C (?) | 13 | 17 | 20 | 19 | 16 | 13 | 10 | 11 | 14 | 16 | 18 | 17 | 14 | 14 | 14 | 16 | 18 | 17 | 17 | 16 | 15 | 15 | 15 | 15 |

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.

