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 6 am Thursday 11 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
11.0° C
(Which is 7.9°C colder than average for this time of year)How big are the waves at Boiler today?
The current surf forecast for Boiler at 9AM is: 1.3m 6s primary swell from a North-northwest direction and 0.3m 9s secondary swell from a East direction, 0.2m 8s secondary swell from a South-southeast direction (forecast issued at 06:00am December 11). The wind direction is predicted to be cross-offshore.
| Time (EST) & Date | Wave Height | Wave Period |
|---|---|---|
| Morning (11 Dec) | 4.5ft (1.3m) | 6s |
| Afternoon (11 Dec) | 2.5ft (0.8m) | 6s |
| Evening (11 Dec) | 2ft (0.6m) | 7s |
Table - waves today at Boiler. (Swell directed towards the surf break)
Updates in hr min s Forecast update imminent
Thursday 11 | Friday 12 | Saturday 13 | Sun 14 | |||||||||||||||||||||
| 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) (?) | 9 | 9 | 6 | 9 | 6 | 7 | 7 | 15 | 15 | 15 | 14 | 14 | 14 | 6 | 5 | 5 | 9 | 8 | 8 | 8 | 16 | 9 | 19 | 18 |
Wave (?)Graph  | ||||||||||||||||||||||||
 kJ (?) | 26 | 16 | 106 | 7 | 55 | 48 | 35 | 4 | 4 | 4 | 4 | 4 | 4 | 3 | 3 | 2 | 3 | 3 | 3 | 2 | 5 | 2 | 7 | 6 |
Wind (km/h) | ||||||||||||||||||||||||
| Wind State (?) onshore cross-onshore cross-shore cross-offshore offshore glassy | cross- off | cross- off | cross | cross- off | cross- off | cross- off | cross- off | cross- off | cross- off | cross- off | cross- off | glass | on | on | cross- on | cross | cross- off | off | off | cross- off | cross- off | cross- off | glass | cross |
High Tide / height (m) | 12:55PM 0.53 | 2:00AM 0.55 | 1:56PM 0.47 | 2:55AM 0.56 | 2:58PM 0.42 | |||||||||||||||||||
Low Tide / height (m) | 7:02AM 0.03 | 7:35PM 0.00 | 8:06AM 0.03 | 8:22PM 0.00 | 9:08AM 0.03 | 9:08PM 0.01 | ||||||||||||||||||
Thursday 11 | Friday 12 | Saturday 13 | Sun 14 | |||||||||||||||||||||
| Sunrise | - | - | 7:01 | - | - | - | - | - | - | - | 7:01 | - | - | - | - | - | - | - | 7:01 | - | - | - | - | - |
| Sunset | - | - | - | - | 4:47 | - | - | - | - | - | - | - | 4:47 | - | - | - | - | - | - | - | 4:49 | - | - | - |
 | |  |  | | | |  |  | |  | | | | | | | | | | | | | | |
Rain (mm) | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - |
| Temp. °C | 9 | 7 | 6 | 5 | 6 | 6 | 4 | 4 | 3 | 3 | 4 | 5 | 6 | 7 | 8 | 9 | 11 | 11 | 10 | 11 | 10 | 11 | 11 | 11 |
| Feels °C (?) | 1 | -4 | -3 | -3 | -2 | -2 | -3 | -3 | -4 | -3 | -1 | 2 | 2 | 3 | 5 | 6 | 8 | 8 | 6 | 8 | 7 | 9 | 9 | 8 |
- 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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