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:
Diamond Beach surfForecast / New Jersey / USA
48hr Weather and Surf, issued 6 am Saturday 13 Dec 2025 ESTForecast update in hr min s Forecast update imminent
Diamond Beach surf forecast is for near shore open water. Breaking waves will often be smaller at less exposed spots.
Today's Diamond Beach sea temperature is
8.2° C
(Which is normal for this time of year)How big are the waves at Diamond Beach today?
The current surf forecast for Diamond Beach at 11AM is: 0.7m 4s primary swell from a Southwest direction and 0.1m 7s secondary swell from a South direction, 0.1m 10s secondary swell from a East direction (forecast issued at 06:00am December 13). The wind direction is predicted to be cross-shore.
| Time (EST) & Date | Wave Height | Wave Period |
|---|---|---|
| Morning (13 Dec) | 2ft (0.6m) | 3s |
| Afternoon (13 Dec) | 2.5ft (0.7m) | 4s |
| Evening (13 Dec) | 1.5ft (0.5m) | 5s |
Table - waves today at Diamond Beach. (Swell directed towards the surf break)
Updates in hr min s Forecast update imminent
Saturday 13 | Sunday 14 | Monday 15 | Tue 16 | |||||||||||||||||||||
| 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 | 10 PM | 1 AM | |
Rating (10 max) | ||||||||||||||||||||||||
Swell Height Map |    |    |    |    | ||||||||||||||||||||
| Wave Height (m) & direction (?) | ||||||||||||||||||||||||
| Period(s) (?) | 10 | 3 | 4 | 4 | 4 | 5 | 5 | 5 | 17 | 16 | 16 | 16 | 16 | 16 | 8 | 9 | 9 | 10 | 10 | 10 | 11 | 11 | 11 | 11 |
Wave (?)Graph  | ||||||||||||||||||||||||
 kJ (?) | 2 | 2 | 10 | 18 | 17 | 11 | 12 | 7 | 6 | 5 | 5 | 5 | 5 | 5 | 7 | 7 | 8 | 4 | 4 | 4 | 4 | 5 | 5 | 5 |
Wind (km/h) | ||||||||||||||||||||||||
| Wind State (?) onshore cross-onshore cross-shore cross-offshore offshore glassy | cross | cross | cross | cross- off | cross- off | cross- off | glass | cross- off | cross- off | off | off | off | off | off | off | off | off | off | off | off | cross- off | cross- off | cross- off | cross- off |
High Tide / height (m) | 3:02AM 1.27 | 3:11PM 1.15 | 3:54AM 1.30 | 4:06PM 1.11 | 4:44AM 1.34 | 5:00PM 1.10 | ||||||||||||||||||
Low Tide / height (m) | 9:03AM 0.23 | 9:23PM 0.10 | 9:58AM 0.19 | 10:08PM 0.10 | 10:46AM 0.14 | 10:50PM 0.09 | ||||||||||||||||||
Saturday 13 | Sunday 14 | Monday 15 | Tue 16 | |||||||||||||||||||||
| Sunrise | - | - | 7:09 | - | - | - | - | - | - | - | 7:09 | - | - | - | - | - | - | - | 7:09 | - | - | - | - | - |
| Sunset | - | - | - | - | 4:37 | - | - | - | - | - | - | - | 4:37 | - | - | - | - | - | - | - | 4:37 | - | - | - |
 |  |  | |  | | | | |  |  | | | |  | | | | | | | | | | |
Rain (mm) | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - |
| Temp. °C | 1 | 2 | 3 | 6 | 6 | 5 | 5 | 4 | 1 | -1 | -3 | -4 | -5 | -5 | -5 | -7 | -8 | -8 | -6 | -4 | -2 | -3 | -2 | 0 |
| Feels °C (?) | -4 | -5 | -4 | -1 | 1 | 1 | 2 | 0 | -5 | -10 | -14 | -15 | -18 | -17 | -17 | -19 | -19 | -18 | -16 | -13 | -10 | -11 | -8 | -7 |
- 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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