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:
Coastguards surfForecast / Long Island NY / USA
48hr Weather and Surf, issued 12 pm Sunday 14 Dec 2025 ESTForecast update in hr min s Forecast update imminent
Coastguards surf forecast is for near shore open water. Breaking waves will often be smaller at less exposed spots.
Today's Coastguards sea temperature is
7.9° C
(Which is 1.1°C colder than average for this time of year)How big are the waves at Coastguards today?
The current surf forecast for Coastguards at 5PM is: 0.3m 7s primary swell from a South-southeast direction and 0.1m 8s secondary swell from a Southeast direction (forecast issued at 12:00pm December 14). An open ocean swell of 0.9m 4s is not directed at the surf break. The wind direction is predicted to be cross-offshore.
| Time (EST) & Date | Wave Height | Wave Period |
|---|---|---|
| Morning (14 Dec) | 1.5ft (0.5m) | 6s |
| Afternoon (14 Dec) | 1ft (0.3m) | 7s |
| Evening (14 Dec) | 1.5ft (0.4m) | 7s |
Table - waves today at Coastguards. (Swell directed towards the surf break)
Updates in hr min s Forecast update imminent
Sunday 14 | Monday 15 | Tuesday 16 | Wednesday 17 | |||||||||||||||||||||
| 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 (?) | ||||||||||||||||||||||||
| Period(s) (?) | 5 | 7 | 7 | 7 | 7 | 9 | 9 | 9 | 10 | 10 | 4 | 4 | 4 | 5 | 4 | 5 | 11 | 11 | 11 | 11 | 4 | 5 | 5 | 5 |
Wave (?)Graph  | ||||||||||||||||||||||||
 kJ (?) | 9 | 10 | 10 | 14 | 21 | 22 | 48 | 32 | 15 | 16 | 29 | 28 | 41 | 52 | 41 | 24 | 19 | 19 | 18 | 18 | 22 | 54 | 94 | 119 |
Wind (km/h) | ||||||||||||||||||||||||
| Wind State (?) onshore cross-onshore cross-shore cross-offshore offshore glassy | cross- off | cross- off | cross- off | cross- off | cross- off | cross- off | cross- off | cross- off | cross- off | cross | cross | cross- on | cross- on | cross | cross | cross | cross | cross- on | cross- on | cross- on | cross- on | cross- on | cross- on | cross- on |
High Tide / height (m) | 2:58PM 1.03 | 3:36AM 1.24 | 3:52PM 1.02 | 4:24AM 1.28 | 4:43PM 1.03 | 5:07AM 1.32 | ||||||||||||||||||
Low Tide / height (m) | 9:04AM 0.18 | 9:14PM 0.09 | 9:52AM 0.14 | 9:56PM 0.09 | 10:38AM 0.09 | 10:37PM 0.08 | ||||||||||||||||||
Sunday 14 | Monday 15 | Tuesday 16 | Wednesday 17 | |||||||||||||||||||||
| Sunrise | - | - | - | - | - | - | - | - | 7:09 | - | - | - | - | - | - | - | 7:09 | - | - | - | - | - | - | - |
| Sunset | - | - | 4:25 | - | - | - | - | - | - | - | 4:25 | - | - | - | - | - | - | - | 4:27 | - | - | - | - | - |
 | |  |  |  |  | | |  | | | | | | | |  | | | | | | | | |
Rain (mm) | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - |
| Temp. °C | 0 | -2 | -3 | -5 | -6 | -8 | -8 | -8 | -6 | -4 | -3 | -2 | -2 | -3 | -3 | -3 | -4 | -3 | -2 | -1 | 1 | 4 | 4 | 4 |
| Feels °C (?) | -5 | -11 | -12 | -15 | -17 | -19 | -18 | -17 | -14 | -13 | -11 | -10 | -11 | -12 | -10 | -9 | -11 | -9 | -9 | -8 | -6 | -4 | -4 | -4 |
- Map Icons:
Break
Live Wave Height (m)
Live Wind Speed (km/h)
Surf Rating (10 Max)
Ocean Swells (m)- Wind Speed (km/h)
Latest Updates
Buy Less, Surf More This Black Friday
Surf-forecast is providing a free, all-access pass to our premium features and 12-day forecasts all weekend.
Quiksilver Teams Up With PrimaLoft® For World’s First Thermal Layering System for a Wetsuit.
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.
Vancouver Island’s Day Of Days With Reed Platenius
Surf-Forecast recently helped the 21-year-old Canadian pro surfer and adventurer score some cold water perfection at home.
Read more
Discover more articles and updates in the Greenroom.
FREE! Surf-Forecast.com widget for your website
The surf report / weather widget below is available to embed on third party websites free of charge and provides a summary of our Coastguards 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.
Nearest