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 Friday 12 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 4AM is: 2.2m 16s primary swell from a West direction (forecast issued at 11:00pm December 12). The wind direction is predicted to be cross-onshore.
| Time (GMT) & Date | Wave Height | Wave Period |
|---|---|---|
| Morning (13 Dec) | 6.5ft (2.0m) | 16s |
| Afternoon (13 Dec) | 5ft (1.5m) | 14s |
| Evening (13 Dec) | 6ft (1.9m) | 8s |
Table - waves today at Grunta Beach. (Swell directed towards the surf break)
Updates in hr min s Forecast update imminent
Saturday 13 | Sunday 14 | Monday 15 | ||||||||||||||||||||||
| 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) (?) | 17 | 17 | 16 | 16 | 16 | 15 | 14 | 14 | 8 | 9 | 9 | 12 | 12 | 12 | 12 | 11 | 11 | 11 | 11 | 12 | 11 | 11 | 13 | 13 |
Wave (?)Graph  | ||||||||||||||||||||||||
 kJ (?) | 3251 | 3139 | 2605 | 2237 | 1960 | 1658 | 938 | 1482 | 504 | 682 | 820 | 1718 | 1849 | 2032 | 2100 | 2147 | 2366 | 2409 | 2409 | 2292 | 1815 | 1520 | 1730 | 1452 |
Wind (km/h) | ||||||||||||||||||||||||
| Wind State (?) onshore cross-onshore cross-shore cross-offshore offshore glassy | cross- on | cross- on | cross- on | cross- on | cross | cross- on | cross- on | cross | cross | cross | cross | cross | cross | cross | cross | cross | cross | cross | cross | cross | cross | cross | on | cross |
High Tide / height (m) | 12:13AM 7.12 | 12:40PM 7.32 | 1:17AM 7.09 | 1:42PM 7.31 | 2:19AM 7.24 | 2:41PM 7.43 | ||||||||||||||||||
Low Tide / height (m) | 6:16AM 3.08 | 6:57PM 3.00 | 7:20AM 3.08 | 7:58PM 2.94 | 8:20AM 2.92 | |||||||||||||||||||
Saturday 13 | Sunday 14 | Monday 15 | ||||||||||||||||||||||
| Sunrise | - | - | - | - | 8:11 | - | - | - | - | - | - | - | 8:11 | - | - | - | - | - | - | - | 8:12 | - | - | - |
| Sunset | - | - | - | - | - | - | 4:08 | - | - | - | - | - | - | - | 4:08 | - | - | - | - | - | - | - | 4:08 | - |
 |  | | |  |  | |  | | | | |  | | | | |  | | |  | | | | |
Rain (mm) | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | 1 | 2 | 4 | 5 | 3 | 3 | 3 |
| Temp. °C | 10 | 10 | 10 | 9 | 9 | 9 | 10 | 9 | 9 | 9 | 10 | 10 | 11 | 11 | 12 | 12 | 12 | 12 | 12 | 11 | 11 | 11 | 11 | 9 |
| Feels °C (?) | 6 | 6 | 6 | 4 | 4 | 3 | 4 | 3 | 2 | 1 | 2 | 2 | 3 | 3 | 4 | 3 | 3 | 3 | 4 | 3 | 4 | 6 | 9 | 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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