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:
Barmouth surfForecast / Wales – Mid / UK
48hr Weather and Surf, issued 11 am Saturday 13 Dec 2025 GMTForecast update in hr min s Forecast update imminent
Barmouth surf forecast is for near shore open water. Breaking waves will often be smaller at less exposed spots.
Today's Barmouth sea temperature is
9.7° C
(Which is slightly cooler than normal)How big are the waves at Barmouth today?
The current surf forecast for Barmouth at 3PM is: 1.8m 7s primary swell from a Southwest direction (forecast issued at 11:00am December 13). The wind direction is predicted to be onshore.
| Time (GMT) & Date | Wave Height | Wave Period |
|---|---|---|
| Morning (13 Dec) | 1.5ft (0.4m) | 16s |
| Afternoon (13 Dec) | 6ft (1.8m) | 7s |
| Evening (13 Dec) | 6ft (1.9m) | 8s |
Table - waves today at Barmouth. (Swell directed towards the surf break)
Updates in hr min s Forecast update imminent
Saturday 13 | Sunday 14 | Monday 15 | Tuesday 16 | |||||||||||||||||||||
| 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) (?) | 16 | 6 | 7 | 8 | 8 | 8 | 9 | 9 | 9 | 9 | 9 | 10 | 10 | 10 | 10 | 10 | 11 | 10 | 10 | 10 | 10 | 9 | 9 | 9 |
Wave (?)Graph  | ||||||||||||||||||||||||
 kJ (?) | 82 | 151 | 322 | 463 | 486 | 511 | 598 | 660 | 612 | 654 | 781 | 929 | 988 | 1076 | 850 | 603 | 408 | 216 | 135 | 88 | 60 | 41 | 32 | 20 |
Wind (km/h) | ||||||||||||||||||||||||
| Wind State (?) onshore cross-onshore cross-shore cross-offshore offshore glassy | cross- on | cross- on | on | on | cross- on | cross- on | cross- on | cross- on | cross- on | cross- on | cross- on | cross- on | cross- on | cross- on | cross- on | cross- on | cross- on | glass | cross- off | cross- off | cross- off | off | off | glass |
High Tide / height (m) | 2:45PM 3.99 | 3:33AM 3.66 | 3:58PM 3.95 | 4:43AM 3.80 | 5:02PM 4.04 | 5:37AM 4.01 | ||||||||||||||||||
Low Tide / height (m) | 9:49AM 1.96 | 10:47PM 1.66 | 11:01AM 1.93 | 11:46PM 1.62 | 12:00PM 1.84 | 12:34AM 1.57 | ||||||||||||||||||
Saturday 13 | Sunday 14 | Monday 15 | Tuesday 16 | |||||||||||||||||||||
| Sunrise | 8:18 | - | - | - | - | - | - | - | 8:19 | - | - | - | - | - | - | - | 8:21 | - | - | - | - | - | - | - |
| Sunset | - | - | 4:00 | - | - | - | - | - | - | - | 4:00 | - | - | - | - | - | - | - | 4:00 | - | - | - | - | - |
 | |  |  | | | |  |  | | | | |  | |  |  | | | | | | | | |
Rain (mm) | - | - | - | - | - | - | - | 1 | 2 | 2 | 2 | 4 | 3 | 10 | 9 | 12 | 6 | 3 | 5 | 4 | 2 | 5 | 2 | - |
| Temp. °C | 8 | 10 | 10 | 9 | 10 | 10 | 10 | 10 | 10 | 10 | 10 | 10 | 11 | 11 | 11 | 10 | 10 | 10 | 9 | 9 | 8 | 7 | 7 | 7 |
| Feels °C (?) | 3 | 4 | 3 | 2 | 3 | 3 | 3 | 3 | 4 | 3 | 1 | 2 | 2 | 3 | 5 | 6 | 9 | 9 | 7 | 6 | 4 | 3 | 4 | 5 |
- 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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