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:
Matunuck surfForecast / Rhode Island / USA
48hr Weather and Surf, issued 12 am Thursday 11 Dec 2025 ESTForecast update in hr min s Forecast update imminent
Matunuck surf forecast is for near shore open water. Breaking waves will often be smaller at less exposed spots.
Today's Matunuck sea temperature is
9.1° C
(Which is normal for this time of year)How big are the waves at Matunuck today?
The current surf forecast for Matunuck at 5AM is: 2.1m 8s primary swell from a Southwest direction and 0.2m 9s secondary swell from a East-southeast direction (forecast issued at 12:00am December 11). The wind direction is predicted to be cross-offshore.
| Time (EST) & Date | Wave Height | Wave Period |
|---|---|---|
| Morning (11 Dec) | 5.5ft (1.7m) | 8s |
| Afternoon (11 Dec) | 5ft (1.5m) | 8s |
| Evening (11 Dec) | 1.5ft (0.5m) | 10s |
Table - waves today at Matunuck. (Swell directed towards the surf break)
Updates in hr min s Forecast update imminent
Thursday 11 | Friday 12 | Saturday 13 | ||||||||||||||||||||||
| 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 | 10 AM | 1 PM | 4 PM | 7 PM | |
Rating (10 max) | ||||||||||||||||||||||||
Swell Height Map |  |    |    |    | ||||||||||||||||||||
| Wave Height (m) & direction (?) | ||||||||||||||||||||||||
| Period(s) (?) | 8 | 8 | 8 | 8 | 8 | 8 | 8 | 10 | 10 | 9 | 7 | 7 | 7 | 4 | 5 | 9 | 6 | 6 | 6 | 6 | 4 | 4 | 5 | 6 |
Wave (?)Graph  | ||||||||||||||||||||||||
 kJ (?) | 882 | 667 | 571 | 412 | 306 | 302 | 243 | 47 | 47 | 28 | 0 | 0 | 0 | 55 | 63 | 2 | 0 | 46 | 20 | 16 | 14 | 36 | 102 | 124 |
Wind (km/h) | ||||||||||||||||||||||||
| Wind State (?) onshore cross-onshore cross-shore cross-offshore offshore glassy | cross | cross | cross- off | cross- off | cross- off | cross- off | cross- off | cross- off | cross- off | cross- off | cross- off | cross- off | cross- off | cross- off | cross- off | cross- off | cross- off | cross- off | cross- off | cross- off | cross | cross | cross | cross |
High Tide / height (m) | 12:36AM 0.80 | 1:01PM 0.79 | 1:34AM 0.79 | 1:58PM 0.73 | 2:32AM 0.79 | 2:53PM 0.69 | ||||||||||||||||||
Low Tide / height (m) | 7:08AM 0.07 | 7:41PM 0.06 | 8:23AM 0.10 | 8:40PM 0.08 | 9:30AM 0.11 | |||||||||||||||||||
Thursday 11 | Friday 12 | Saturday 13 | ||||||||||||||||||||||
| Sunrise | - | - | - | - | 7:01 | - | - | - | - | - | - | - | 7:01 | - | - | - | - | - | - | - | 7:03 | - | - | - |
| Sunset | - | - | - | - | - | - | 4:15 | - | - | - | - | - | - | - | 4:15 | - | - | - | - | - | - | - | 4:15 | - |
 | |  |  |  | | | | | | | | | | | | | | | | |  | |  | |
Rain (mm) | 1 | 1 | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - |
| Temp. °C | 6 | 7 | 5 | 2 | -1 | 0 | -1 | -2 | -3 | -4 | -4 | -4 | -3 | -1 | 0 | -1 | -1 | -2 | -1 | -1 | 2 | 3 | 4 | 3 |
| Feels °C (?) | -2 | 0 | -4 | -6 | -10 | -10 | -12 | -12 | -14 | -15 | -14 | -13 | -12 | -10 | -9 | -9 | -8 | -9 | -6 | -7 | -5 | -4 | -3 | -5 |
- 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 Matunuck 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