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:
Boiler surfForecast / Carolina North / USA
48hr Weather and Surf, issued 12 am Tuesday 16 Dec 2025 ESTForecast update in hr min s Forecast update imminent
Boiler surf forecast is for near shore open water. Breaking waves will often be smaller at less exposed spots.
Today's Boiler sea temperature is
10.9° C
(Which is 7.6°C colder than average for this time of year)How big are the waves at Boiler today?
The current surf forecast for Boiler at 5AM is: 0.6m 7s primary swell from a Northeast direction and 0.3m 9s secondary swell from a East-northeast direction (forecast issued at 12:00am December 16). An open ocean swell of 0.3m 2s is not directed at the surf break. The wind direction is predicted to be offshore.
| Time (EST) & Date | Wave Height | Wave Period |
|---|---|---|
| Morning (16 Dec) | 2ft (0.6m) | 8s |
| Afternoon (16 Dec) | 1.5ft (0.4m) | 8s |
| Evening (16 Dec) | 1ft (0.3m) | 10s |
Table - waves today at Boiler. (Swell directed towards the surf break)
Updates in hr min s Forecast update imminent
Tuesday 16 | Wednesday 17 | Thursday 18 | ||||||||||||||||||||||
| 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 | 7 | 7 | 8 | 8 | 8 | 10 | 10 | 10 | 10 | 10 | 10 | 10 | 10 | 10 | 9 | 9 | 9 | 10 | 10 | 10 | 10 | 10 |
Wave (?)Graph  | ||||||||||||||||||||||||
 kJ (?) | 84 | 53 | 34 | 30 | 45 | 25 | 24 | 20 | 20 | 33 | 33 | 33 | 32 | 32 | 31 | 30 | 29 | 29 | 29 | 32 | 34 | 52 | 51 | 141 |
Wind (km/h) | ||||||||||||||||||||||||
| Wind State (?) onshore cross-onshore cross-shore cross-offshore offshore glassy | cross- off | off | off | off | off | off | off | off | off | off | off | off | off | off | off | off | cross- off | cross- off | cross | cross- on | cross | cross | cross | cross |
High Tide / height (m) | 5:13AM 0.57 | 5:37PM 0.38 | 5:53AM 0.57 | 6:19PM 0.38 | 6:32AM 0.58 | 6:58PM 0.37 | ||||||||||||||||||
Low Tide / height (m) | 10:37PM 0.01 | 11:44AM 0.01 | 11:18PM 0.01 | 12:28PM 0.00 | 11:57PM 0.01 | 1:11PM -0.00 | ||||||||||||||||||
Tuesday 16 | Wednesday 17 | Thursday 18 | ||||||||||||||||||||||
| Sunrise | - | - | - | - | 7:03 | - | - | - | - | - | - | - | 7:05 | - | - | - | - | - | - | - | 7:05 | - | - | - |
| Sunset | - | - | - | - | - | - | 4:50 | - | - | - | - | - | - | - | 4:50 | - | - | - | - | - | - | - | 4:50 | - |
 | |  | |  | | | | | | | | |  |  | |  | | | | | | | | |
Rain (mm) | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - |
| Temp. °C | -1 | 0 | 0 | 1 | 2 | 6 | 7 | 8 | 8 | 8 | 8 | 9 | 9 | 11 | 13 | 14 | 13 | 12 | 12 | 11 | 13 | 15 | 20 | 20 |
| Feels °C (?) | -7 | -6 | -7 | -7 | -5 | 0 | 0 | 2 | 1 | 1 | 1 | 2 | 1 | 4 | 8 | 10 | 10 | 9 | 10 | 8 | 9 | 12 | 16 | 15 |
- 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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