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:
Mablethorpe surfForecast / Lincolnshire / UK
48hr Weather and Surf, issued 11 pm Saturday 13 Dec 2025 GMTForecast update in hr min s Forecast update imminent
Mablethorpe surf forecast is for near shore open water. Breaking waves will often be smaller at less exposed spots.
Today's Mablethorpe sea temperature is
8.0° C
(Which is normal for this time of year)How big are the waves at Mablethorpe today?
The current surf forecast for Mablethorpe at 5AM is: 0.1m 9s primary swell from a North direction (forecast issued at 11:00pm December 13). An open ocean swell of 0.8m 4s is not directed at the surf break. The wind direction is predicted to be cross-offshore.
| Time (GMT) & Date | Wave Height | Wave Period |
|---|---|---|
| Morning (14 Dec) | 0.5ft (0.1m) | 9s |
| Afternoon (14 Dec) | - | - |
| Evening (14 Dec) | - | - |
Table - waves today at Mablethorpe. (Swell directed towards the surf break)
Updates in hr min s Forecast update imminent
Sunday 14 | Monday 15 | Tuesday 16 | ||||||||||||||||||||||
| 9 PM | 0 AM | 3 AM | 6 AM | 9 AM | 12 PM | 3 PM | 6 PM | 9 PM | 0 AM | 3 AM | 6 AM | 9 AM | 12 PM | 3 PM | 6 PM | 9 PM | 0 AM | 3 AM | 6 AM | 9 AM | 12 PM | 3 PM | 6 PM | |
Rating (10 max) | ||||||||||||||||||||||||
Swell Height Map |  |    |    |    | ||||||||||||||||||||
| Wave Height (m) & direction (?) | ||||||||||||||||||||||||
| Period(s) (?) | 10 | 10 | 10 | 9 | 9 | 4 | 4 | 4 | 4 | 4 | 4 | 4 | 4 | 4 | 4 | 5 | 5 | 5 | 5 | 5 | 4 | 4 | 4 | 4 |
Wave (?)Graph  | ||||||||||||||||||||||||
 kJ (?) | 8 | 2 | 2 | 2 | 2 | 0 | 0 | 0 | 0 | 0 | 0 | 33 | 27 | 27 | 13 | 19 | 46 | 53 | 30 | 15 | 9 | 8 | 0 | 19 |
Wind (km/h) | ||||||||||||||||||||||||
| Wind State (?) onshore cross-onshore cross-shore cross-offshore offshore glassy | 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 | cross | cross | cross | cross | cross- off | cross | cross | cross | cross- off | cross |
High Tide / height (m) | 1:09AM 4.16 | 2:09PM 4.04 | 2:13AM 4.19 | 3:00PM 4.21 | 3:09AM 4.31 | 3:43PM 4.40 | ||||||||||||||||||
Low Tide / height (m) | 6:53PM 2.22 | 7:43AM 1.56 | 8:13PM 2.11 | 8:46AM 1.53 | 9:14PM 1.88 | 9:37AM 1.44 | ||||||||||||||||||
Sunday 14 | Monday 15 | Tuesday 16 | ||||||||||||||||||||||
| Sunrise | - | - | - | - | 8:06 | - | - | - | - | - | - | - | 8:06 | - | - | - | - | - | - | - | 8:07 | - | - | - |
| Sunset | - | - | - | - | - | - | 3:40 | - | - | - | - | - | - | - | 3:40 | - | - | - | - | - | - | - | 3:40 | - |
 |  | | |  | | |  | | | | | | | |  | | | | |  | | |  | |
Rain (mm) | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | 1 | - | - | - | - | 2 | 3 | 2 | 1 |
| Temp. °C | 7 | 7 | 7 | 7 | 7 | 8 | 9 | 9 | 9 | 11 | 11 | 10 | 9 | 10 | 10 | 10 | 10 | 10 | 9 | 8 | 9 | 8 | 7 | 7 |
| Feels °C (?) | 0 | -1 | -1 | -1 | -1 | 0 | 0 | 0 | 0 | 2 | 3 | 3 | 2 | 3 | 4 | 4 | 4 | 3 | 5 | 6 | 7 | 5 | 2 | 4 |
- 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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