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:
Grunta Beach surfForecast / Devon (North) / UK
48hr Weather and Surf, issued 11 pm Monday 15 Dec 2025 GMTForecast update in hr min s Forecast update imminent
Grunta Beach surf forecast is for near shore open water. Breaking waves will often be smaller at less exposed spots.
Today's Grunta Beach sea temperature is
11.7° C
(Which is slightly warmer than usual)How big are the waves at Grunta Beach today?
The current surf forecast for Grunta Beach at 5AM is: 1.6m 14s primary swell from a West direction and 0.7m 4s secondary swell from a North-northwest direction (forecast issued at 11:00pm December 15). The wind direction is predicted to be cross-shore.
| Time (GMT) & Date | Wave Height | Wave Period |
|---|---|---|
| Morning (16 Dec) | 5ft (1.6m) | 14s |
| Afternoon (16 Dec) | 5ft (1.6m) | 14s |
| Evening (16 Dec) | 5ft (1.5m) | 14s |
Table - waves today at Grunta Beach. (Swell directed towards the surf break)
Updates in hr min s Forecast update imminent
Tuesday 16 | Wednesday 17 | Thursday 18 | ||||||||||||||||||||||
| 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) (?) | 13 | 14 | 14 | 14 | 14 | 14 | 14 | 14 | 14 | 14 | 14 | 14 | 13 | 8 | 9 | 11 | 11 | 11 | 22 | 21 | 20 | 20 | 19 | 18 |
Wave (?)Graph  | ||||||||||||||||||||||||
 kJ (?) | 1049 | 1081 | 1094 | 1033 | 1063 | 1028 | 1014 | 880 | 855 | 843 | 747 | 627 | 423 | 722 | 1391 | 2211 | 2505 | 2600 | 1813 | 6956 | 6666 | 5622 | 5530 | 5384 |
Wind (km/h) | ||||||||||||||||||||||||
| Wind State (?) onshore cross-onshore cross-shore cross-offshore offshore glassy | on | cross- on | cross- on | cross | cross | cross | cross | cross- on | cross | cross- on | glass | cross | cross | cross | cross | cross | cross | cross | cross | cross- on | cross- on | cross- on | cross | cross |
High Tide / height (m) | 3:13AM 7.50 | 3:33PM 7.63 | 4:01AM 7.80 | 4:19PM 7.83 | 4:44AM 8.07 | 5:01PM 8.02 | ||||||||||||||||||
Low Tide / height (m) | 8:54PM 2.76 | 9:14AM 2.66 | 9:43PM 2.52 | 10:01AM 2.39 | 10:27PM 2.27 | 10:44AM 2.14 | ||||||||||||||||||
Tuesday 16 | Wednesday 17 | Thursday 18 | ||||||||||||||||||||||
| Sunrise | - | - | - | - | 8:14 | - | - | - | - | - | - | - | 8:15 | - | - | - | - | - | - | - | 8:15 | - | - | - |
| Sunset | - | - | - | - | - | - | 4:08 | - | - | - | - | - | - | - | 4:08 | - | - | - | - | - | - | - | 4:09 | - |
 | |  | |  | | | |  |  | | |  | | | | | |  | | | | | | |
Rain (mm) | 1 | 2 | - | - | - | - | - | - | - | - | - | - | - | - | - | 1 | 1 | 3 | 8 | 6 | - | - | - | - |
| Temp. °C | 11 | 10 | 10 | 10 | 9 | 9 | 9 | 9 | 9 | 9 | 8 | 8 | 7 | 7 | 9 | 10 | 10 | 11 | 11 | 11 | 11 | 10 | 10 | 11 |
| Feels °C (?) | 9 | 8 | 7 | 6 | 3 | 3 | 4 | 4 | 5 | 6 | 6 | 4 | 1 | 0 | 1 | 0 | 0 | 1 | 2 | 6 | 9 | 7 | 6 | 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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