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:
Asa surfForecast / Kattegat and Skagerrack / Sweden
48hr Weather and Surf, issued 6 pm Wednesday 10 Dec 2025 CETForecast update in hr min s Forecast update imminent
Asa surf forecast is for near shore open water. Breaking waves will often be smaller at less exposed spots.
Today's Asa sea temperature is
7.1° C
(Which is 2.4°C warmer than normal for this time of year)How big are the waves at Asa today?
The current surf forecast for Asa at 2AM is: 1.4m 6s primary swell from a Southwest direction and 0.3m 9s secondary swell from a West-northwest direction (forecast issued at 06:00pm December 10). The wind direction is predicted to be onshore.
| Time (CET) & Date | Wave Height | Wave Period |
|---|---|---|
| Morning (11 Dec) | 5ft (1.5m) | 6s |
| Afternoon (11 Dec) | 5ft (1.6m) | 5s |
| Evening (11 Dec) | 5ft (1.6m) | 6s |
Table - waves today at Asa. (Swell directed towards the surf break)
Updates in hr min s Forecast update imminent
Wednesday 10 | Thursday 11 | Friday 12 | Saturday 13 | |||||||||||||||||||||
| 4 PM | 7 PM | 10 PM | 1 AM | 4 AM | 7 AM | 10 AM | 1 PM | 4 PM | 7 PM | 10 PM | 1 AM | 4 AM | 7 AM | 10 AM | 1 PM | 4 PM | 7 PM | 10 PM | 1 AM | 4 AM | 7 AM | 10 AM | 1 PM | |
Rating (10 max) | ||||||||||||||||||||||||
Swell Height Map |    |    |    |    | ||||||||||||||||||||
| Wave Height (m) & direction (?) | ||||||||||||||||||||||||
| Period(s) (?) | 5 | 5 | 5 | 6 | 6 | 6 | 6 | 5 | 5 | 5 | 6 | 6 | 6 | 6 | 6 | 5 | 4 | 3 | 3 | 3 | 4 | 4 | 4 | 4 |
Wave (?)Graph  | ||||||||||||||||||||||||
 kJ (?) | 57 | 57 | 83 | 120 | 138 | 143 | 143 | 110 | 133 | 126 | 152 | 117 | 27 | 21 | 12 | 7 | 3 | 2 | 3 | 5 | 10 | 16 | 22 | 15 |
Wind (km/h) | ||||||||||||||||||||||||
| Wind State (?) onshore cross-onshore cross-shore cross-offshore offshore glassy | on | on | on | on | cross- on | on | on | cross- on | cross- on | cross- on | cross- on | cross- on | cross- on | cross- on | on | cross- on | cross- on | cross- on | cross- on | cross | cross- on | cross- on | cross | cross- on |
High Tide / height (m) | 12:23AM 0.11 | 12:39PM 0.13 | 1:22AM 0.10 | 1:38PM 0.13 | 2:15AM 0.09 | |||||||||||||||||||
Low Tide / height (m) | 6:15PM 0.01 | 6:25AM 0.03 | 7:22PM 0.01 | 7:18AM 0.02 | 8:19PM 0.00 | 8:04AM 0.01 | ||||||||||||||||||
Wednesday 10 | Thursday 11 | Friday 12 | Saturday 13 | |||||||||||||||||||||
| Sunrise | - | - | - | - | - | - | 8:41 | - | - | - | - | - | - | - | 8:41 | - | - | - | - | - | - | - | 8:42 | - |
| Sunset | - | - | - | - | - | - | - | 3:26 | - | - | - | - | - | - | - | 3:26 | - | - | - | - | - | - | - | 3:26 |
 |  |  | | | |  | | | | |  | | | |  | | | | | | |  | | |
Rain (mm) | - | - | 1 | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | 2 | 2 |
| Temp. °C | 8 | 8 | 8 | 9 | 9 | 8 | 8 | 8 | 8 | 8 | 8 | 7 | 7 | 7 | 6 | 7 | 6 | 6 | 5 | 5 | 5 | 5 | 5 | 7 |
| Feels °C (?) | 3 | 3 | 1 | 2 | 2 | 1 | 2 | 1 | 1 | 1 | 1 | 2 | 3 | 4 | 3 | 4 | 3 | 1 | 0 | -1 | -1 | -1 | -1 | 3 |
- 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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