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 Cassino at 12AM is: 1.2m 5s primary swell from a East-northeast direction and 0.5m 10s secondary swell from a Southeast direction, 0.1m 8s secondary swell from a South direction (forecast issued at 08:00pm December 14). The wind direction is predicted to be cross-onshore.
| Time (-03) & Date | Wave Height | Wave Period |
|---|---|---|
| Morning (15 Dec) | - | - |
| Afternoon (15 Dec) | - | - |
| Evening (15 Dec) | 4ft (1.2m) | 5s |
Table - waves today at Cassino. (Swell directed towards the surf break)
Sun 14 | Monday 15 | Tuesday 16 | Wednesday 17 | |||||||||||||||||||||
| 6 PM | 9 PM | 0 AM | 3 AM | 6 AM | 9 AM | 12 PM | 3 PM | 6 PM | 9 PM | 0 AM | 3 AM | 6 AM | 9 AM | 12 PM | 3 PM | 6 PM | 9 PM | 0 AM | 3 AM | 6 AM | 9 AM | 12 PM | 3 PM | |
Rating (10 max) | ||||||||||||||||||||||||
Swell Height Map | ||||||||||||||||||||||||
| Wave Height (m) & direction (?) | SE | ENE | ENE | ENE | SE | E | E | SSE | SE | S | S | S | SE | SE | SE | S | S | S | S | SSE | SSE | SSE | SSE | SSE |
| Period(s) (?) | 10 | 5 | 5 | 6 | 10 | 7 | 7 | 10 | 10 | 5 | 5 | 5 | 10 | 10 | 10 | 6 | 6 | 8 | 8 | 9 | 9 | 8 | 8 | 8 |
Wave (?)Graph | ||||||||||||||||||||||||
| 61 | 74 | 72 | 82 | 34 | 57 | 43 | 54 | 24 | 50 | 31 | 25 | 17 | 17 | 33 | 62 | 188 | 446 | 418 | 258 | 189 | 125 | 92 | 71 | |
Wind (km/h) | ENE | NE | NNE | NNE | NE | NNE | SSE | S | SSW | S | SW | SW | WSW | SW | SW | SSE | S | S | S | S | SSW | WNW | ENE | E |
| Wind State (?) onshore cross-onshore cross-shore cross-offshore offshore glassy | cross- on | cross- on | cross- on | cross- on | cross- on | cross- on | glass | cross | cross- off | cross | cross- off | cross- off | cross- off | cross- off | cross- off | cross | cross | cross | cross | cross- off | glass | glass | glass | on |
High Tide / height (m) | 4:11PM 0.35 | 10:46PM 0.30 | 4:37AM 0.35 | 11:04AM 0.29 | 5:12PM 0.30 | 11:52PM 0.36 | 5:25AM 0.37 | 11:50AM 0.29 | 6:10PM 0.26 | 12:42AM 0.41 | 6:10AM 0.39 | 12:31PM 0.29 | ||||||||||||
Low Tide / height (m) | 7:43PM 0.22 | 1:20AM 0.25 | 8:13AM 0.21 | 2:05PM 0.20 | 8:15PM 0.19 | 2:32AM 0.29 | 9:02AM 0.20 | 3:09PM 0.15 | 8:50PM 0.18 | 3:32AM 0.31 | 9:50AM 0.20 | |||||||||||||
Sun 14 | Monday 15 | Tuesday 16 | Wednesday 17 | |||||||||||||||||||||
| Sunrise | - | - | - | - | 5:16 | - | - | - | - | - | - | - | 5:16 | - | - | - | - | - | - | - | 5:16 | - | - | - |
| Sunset | 7:30 | - | - | - | - | - | - | - | 7:30 | - | - | - | - | - | - | - | 7:30 | - | - | - | - | - | - | - |
Rain (mm) | - | - | - | - | - | - | 1 | 1 | 6 | 5 | - | - | - | - | - | - | 1 | - | - | - | - | - | - | - |
| Temp. °C | 23 | 22 | 22 | 22 | 22 | 24 | 26 | 22 | 20 | 19 | 19 | 18 | 18 | 20 | 22 | 21 | 20 | 19 | 18 | 18 | 17 | 18 | 20 | 21 |
| Feels °C (?) | 22 | 21 | 22 | 23 | 24 | 26 | 29 | 19 | 18 | 19 | 18 | 16 | 17 | 18 | 19 | 16 | 15 | 14 | 14 | 16 | 16 | 18 | 19 | 18 |

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 Cassino 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.

