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:
48th Street surfForecast / Maryland / USA
48hr Weather and Surf, issued 12 am Saturday 13 Dec 2025 ESTForecast update in hr min s Forecast update imminent
48th Street surf forecast is for near shore open water. Breaking waves will often be smaller at less exposed spots.
Today's 48th Street sea temperature is
8.1° C
(Which is 1.7°C colder than average for this time of year)How big are the waves at 48th Street today?
The current surf forecast for 48th Street at 5AM is: 0.1m 7s primary swell from a Southeast direction and 0.1m 10s secondary swell from a East direction (forecast issued at 12:00am December 13). The wind direction is predicted to be cross-offshore.
| Time (EST) & Date | Wave Height | Wave Period |
|---|---|---|
| Morning (13 Dec) | 0.5ft (0.1m) | 9s |
| Afternoon (13 Dec) | 0.5ft (0.1m) | 8s |
| Evening (13 Dec) | 1.5ft (0.5m) | 4s |
Table - waves today at 48th Street. (Swell directed towards the surf break)
Updates in hr min s Forecast update imminent
Saturday 13 | Sunday 14 | Monday 15 | ||||||||||||||||||||||
| 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 | 7 | 10 | 10 | 9 | 9 | 8 | 4 | 4 | 4 | 7 | 17 | 7 | 6 | 7 | 9 | 9 | 9 | 10 | 10 | 10 | 11 | 11 | 11 |
Wave (?)Graph  | ||||||||||||||||||||||||
 kJ (?) | 2 | 2 | 2 | 2 | 3 | 3 | 3 | 9 | 9 | 6 | 5 | 5 | 7 | 17 | 9 | 13 | 8 | 13 | 9 | 10 | 10 | 11 | 11 | 11 |
Wind (km/h) | ||||||||||||||||||||||||
| Wind State (?) onshore cross-onshore cross-shore cross-offshore offshore glassy | off | cross- off | cross- off | cross- off | cross- off | cross- off | cross- off | cross- off | cross- off | off | cross | cross- off | cross- off | cross- off | cross- off | cross- off | cross- off | cross- off | cross- off | cross- off | cross- off | cross- off | off | off |
High Tide / height (m) | 2:20AM 1.07 | 2:29PM 0.97 | 3:12AM 1.09 | 3:24PM 0.94 | 4:02AM 1.12 | 4:18PM 0.93 | ||||||||||||||||||
Low Tide / height (m) | 8:11PM 0.08 | 8:41AM 0.19 | 9:01PM 0.09 | 9:36AM 0.16 | 9:46PM 0.08 | 10:24AM 0.12 | ||||||||||||||||||
Saturday 13 | Sunday 14 | Monday 15 | ||||||||||||||||||||||
| Sunrise | - | - | - | - | 7:07 | - | - | - | - | - | - | - | 7:09 | - | - | - | - | - | - | - | 7:09 | - | - | - |
| Sunset | - | - | - | - | - | - | 4:39 | - | - | - | - | - | - | - | 4:39 | - | - | - | - | - | - | - | 4:39 | - |
 | |  |  |  | |  | | | | |  |  | | | | | | | | | | | | |
Rain (mm) | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - |
| Temp. °C | 1 | 1 | 3 | 4 | 4 | 7 | 6 | 6 | 7 | 6 | 3 | 0 | -3 | -4 | -5 | -5 | -5 | -8 | -8 | -7 | -5 | -3 | -2 | -2 |
| Feels °C (?) | -3 | -3 | -3 | -2 | -3 | 0 | 1 | 2 | 4 | 3 | -4 | -9 | -13 | -15 | -16 | -16 | -16 | -19 | -18 | -17 | -14 | -12 | -10 | -9 |
- Map Icons:
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Live Wave Height (m)
Live Wind Speed (km/h)
Surf Rating (10 Max)
Ocean Swells (m)- Wind Speed (km/h)
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