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 6 pm Wednesday 10 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
9.2° C
(Which is normal for this time of year)How big are the waves at Matunuck today?
The current surf forecast for Matunuck at 10PM is: 2.5m 8s primary swell from a South-southwest direction and 0.1m 9s secondary swell from a East direction (forecast issued at 06:00pm December 10). The wind direction is predicted to be cross-shore.
| Time (EST) & Date | Wave Height | Wave Period |
|---|---|---|
| Morning (10 Dec) | - | - |
| Afternoon (10 Dec) | 8ft (2.5m) | 7s |
| Evening (10 Dec) | 8ft (2.5m) | 8s |
Table - waves today at Matunuck. (Swell directed towards the surf break)
Updates in hr min s Forecast update imminent
Wednesday 10 | Thursday 11 | Friday 12 | Saturday 13 | |||||||||||||||||||||
| 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 | 10 AM | 1 PM | |
Rating (10 max) | ||||||||||||||||||||||||
Swell Height Map |    |    |    |    | ||||||||||||||||||||
| Wave Height (m) & direction (?) | ||||||||||||||||||||||||
| Period(s) (?) | 8 | 8 | 8 | 9 | 8 | 8 | 8 | 8 | 8 | 10 | 10 | 10 | 7 | 7 | 8 | 5 | 6 | 7 | 9 | 6 | 6 | 6 | 4 | 4 |
Wave (?)Graph  | ||||||||||||||||||||||||
 kJ (?) | 800 | 960 | 979 | 789 | 666 | 783 | 423 | 347 | 249 | 48 | 31 | 30 | 0 | 0 | 3 | 78 | 127 | 1 | 2 | 46 | 28 | 16 | 15 | 36 |
Wind (km/h) | ||||||||||||||||||||||||
| Wind State (?) onshore cross-onshore cross-shore cross-offshore offshore glassy | cross- on | cross | cross | 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 | 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 | |||||||||||||||||||
Low Tide / height (m) | 6:40PM 0.02 | 7:08AM 0.07 | 7:41PM 0.06 | 8:23AM 0.10 | 8:40PM 0.08 | 9:30AM 0.11 | ||||||||||||||||||
Wednesday 10 | Thursday 11 | Friday 12 | Saturday 13 | |||||||||||||||||||||
| Sunrise | - | - | - | - | - | - | 7:01 | - | - | - | - | - | - | - | 7:01 | - | - | - | - | - | - | - | 7:03 | - |
| Sunset | 4:15 | - | - | - | - | - | - | - | 4:15 | - | - | - | - | - | - | - | 4:15 | - | - | - | - | - | - | - |
 |  | |  |  |  |  | | | | | | | | | | | | | | | |  | | |
Rain (mm) | - | - | - | 1 | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - |
| Temp. °C | 10 | 10 | 6 | 6 | 6 | 3 | -1 | 0 | -1 | -2 | -3 | -3 | -4 | -4 | -3 | -1 | 0 | -1 | -1 | -1 | -1 | 0 | 2 | 4 |
| Feels °C (?) | 1 | 1 | -2 | -2 | -3 | -5 | -10 | -10 | -12 | -13 | -14 | -14 | -14 | -13 | -12 | -10 | -9 | -9 | -8 | -7 | -7 | -6 | -5 | -3 |
- Map Icons:
Break
Live Wave Height (m)
Live Wind Speed (km/h)
Surf Rating (10 Max)
Ocean Swells (m)- Wind Speed (km/h)
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