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:
Llangrannog surfForecast / Wales – Mid / UK
48hr Weather and Surf, issued 11 am Thursday 11 Dec 2025 GMTForecast update in hr min s Forecast update imminent
Llangrannog surf forecast is for near shore open water. Breaking waves will often be smaller at less exposed spots.
Today's Llangrannog sea temperature is
10.7° C
(Which is normal for this time of year)How big are the waves at Llangrannog today?
The current surf forecast for Llangrannog at 1PM is: 1.9m 11s primary swell from a West-southwest direction (forecast issued at 11:00am December 11). An open ocean swell of 1.3m 5s is not directed at the surf break. The wind direction is predicted to be cross-offshore.
| Time (GMT) & Date | Wave Height | Wave Period |
|---|---|---|
| Morning (11 Dec) | 6.5ft (2.0m) | 10s |
| Afternoon (11 Dec) | 7ft (2.2m) | 12s |
| Evening (11 Dec) | 6ft (1.9m) | 13s |
Table - waves today at Llangrannog. (Swell directed towards the surf break)
Updates in hr min s Forecast update imminent
Thursday 11 | Friday 12 | Saturday 13 | Sunday 14 | |||||||||||||||||||||
| 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 | 9 PM | 0 AM | 3 AM | 6 AM | |
Rating (10 max) | ||||||||||||||||||||||||
Swell Height Map |    |    |    |    | ||||||||||||||||||||
| Wave Height (m) & direction (?) | ||||||||||||||||||||||||
| Period(s) (?) | 10 | 11 | 12 | 13 | 13 | 13 | 14 | 14 | 14 | 14 | 18 | 18 | 18 | 18 | 17 | 16 | 6 | 7 | 8 | 8 | 9 | 9 | 9 | 9 |
Wave (?)Graph  | ||||||||||||||||||||||||
 kJ (?) | 712 | 685 | 1235 | 1408 | 1264 | 936 | 756 | 939 | 659 | 504 | 564 | 432 | 404 | 1327 | 1112 | 1055 | 177 | 342 | 544 | 769 | 864 | 884 | 885 | 926 |
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 | on | on | cross- on | cross- off | cross | cross- off | cross- off | cross | cross- off | cross- off | cross- off | cross- off | cross- off | cross- off | cross- off | cross- off | cross- off | cross- off |
High Tide / height (m) | 12:26PM 3.45 | 1:05AM 2.83 | 1:31PM 3.20 | 2:19AM 2.72 | 2:45PM 3.05 | 3:34AM 2.77 | ||||||||||||||||||
Low Tide / height (m) | 7:56PM 0.88 | 7:59AM 1.22 | 8:54PM 1.01 | 9:02AM 1.31 | 9:55PM 1.08 | |||||||||||||||||||
Thursday 11 | Friday 12 | Saturday 13 | Sunday 14 | |||||||||||||||||||||
| Sunrise | 8:15 | - | - | - | - | - | - | - | 8:17 | - | - | - | - | - | - | - | 8:18 | - | - | - | - | - | - | - |
| Sunset | - | - | 4:05 | - | - | - | - | - | - | - | 4:05 | - | - | - | - | - | - | - | 4:05 | - | - | - | - | - |
 |  | |  |  |  | | | | | | |  | | | |  | | | | | | | | |
Rain (mm) | - | - | - | - | - | 1 | 5 | 1 | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - |
| Temp. °C | 11 | 12 | 12 | 12 | 11 | 10 | 8 | 9 | 9 | 9 | 10 | 9 | 9 | 9 | 9 | 9 | 8 | 10 | 10 | 9 | 10 | 10 | 10 | 10 |
| Feels °C (?) | 2 | 3 | 4 | 5 | 4 | 4 | 4 | 5 | 6 | 6 | 6 | 6 | 6 | 5 | 5 | 5 | 3 | 3 | 2 | 1 | 2 | 2 | 2 | 2 |
- Map Icons:
Break
Live Wave Height (m)
Live Wind Speed (km/h)
Surf Rating (10 Max)
Ocean Swells (m)- Wind Speed (km/h)
Latest Updates
Buy Less, Surf More This Black Friday
Surf-forecast is providing a free, all-access pass to our premium features and 12-day forecasts all weekend.
Quiksilver Teams Up With PrimaLoft® For World’s First Thermal Layering System for a Wetsuit.
Previously used in our snow jackets for mountain conditions, PrimaLoft® technology is making its debut in the surf industry. The aim is to bring mountain-grade warmth to the waves.
Vancouver Island’s Day Of Days With Reed Platenius
Surf-Forecast recently helped the 21-year-old Canadian pro surfer and adventurer score some cold water perfection at home.
Read more
Discover more articles and updates in the Greenroom.
FREE! Surf-Forecast.com widget for your website
The surf report / weather widget below is available to embed on third party websites free of charge and provides a summary of our Llangrannog surf forecast. Simply grab the html code snippet that we provide and paste it into your own site. You can choose your preferred language and metric/imperial units for the surf forecast feed to suit users of your site. Click here to get the code.
Nearest