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 am Thursday 11 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
6.9° C
(Which is 2.3°C warmer than normal for this time of year)How big are the waves at Asa today?
The current surf forecast for Asa at 9AM is: 1.6m 6s primary swell from a West-southwest direction and 0.4m 9s secondary swell from a West-northwest direction (forecast issued at 06:00am December 11). The wind direction is predicted to be cross-onshore.
| Time (CET) & Date | Wave Height | Wave Period |
|---|---|---|
| Morning (11 Dec) | 5ft (1.6m) | 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
Thursday 11 | Friday 12 | Saturday 13 | Sun 14 | |||||||||||||||||||||
| 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 | 4 PM | 7 PM | 10 PM | 1 AM | |
Rating (10 max) | ||||||||||||||||||||||||
Swell Height Map |    |    |    |    | ||||||||||||||||||||
| Wave Height (m) & direction (?) | ||||||||||||||||||||||||
| Period(s) (?) | 6 | 6 | 6 | 6 | 5 | 5 | 6 | 6 | 6 | 6 | 6 | 5 | 5 | 3 | 3 | 3 | 4 | 4 | 5 | 4 | 4 | 5 | 4 | 5 |
Wave (?)Graph  | ||||||||||||||||||||||||
 kJ (?) | 131 | 178 | 143 | 123 | 133 | 147 | 159 | 97 | 28 | 25 | 15 | 7 | 6 | 2 | 1 | 8 | 15 | 40 | 37 | 24 | 34 | 19 | 25 | 74 |
Wind (km/h) | ||||||||||||||||||||||||
| Wind State (?) onshore cross-onshore cross-shore cross-offshore offshore glassy | cross- on | cross- on | cross- on | cross- on | cross- on | cross- on | cross- on | cross- on | on | on | on | on | cross- on | cross- on | cross- on | cross- on | cross- on | cross- on | on | cross- on | cross- on | cross- on | on | on |
High Tide / height (m) | 12:39PM 0.13 | 1:22AM 0.10 | 1:38PM 0.13 | 2:15AM 0.09 | 2:32PM 0.13 | |||||||||||||||||||
Low Tide / height (m) | 6:25AM 0.03 | 7:22PM 0.01 | 7:18AM 0.02 | 8:19PM 0.00 | 8:04AM 0.01 | 9:10PM -0.00 | ||||||||||||||||||
Thursday 11 | Friday 12 | Saturday 13 | Sun 14 | |||||||||||||||||||||
| Sunrise | - | - | 8:41 | - | - | - | - | - | - | - | 8:41 | - | - | - | - | - | - | - | 8:42 | - | - | - | - | - |
| Sunset | - | - | - | 3:26 | - | - | - | - | - | - | - | 3:26 | - | - | - | - | - | - | - | 3:26 | - | - | - | - |
 |  |  | |  | |  | | | | | | | | | | |  |  |  | | | | | |
Rain (mm) | 1 | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | 1 | 3 | - | - | - | - | - |
| Temp. °C | 9 | 8 | 8 | 8 | 8 | 8 | 8 | 7 | 6 | 6 | 6 | 7 | 7 | 7 | 6 | 5 | 5 | 5 | 6 | 7 | 7 | 7 | 6 | 6 |
| Feels °C (?) | 1 | 1 | 1 | 1 | 1 | 1 | 3 | 1 | 2 | 3 | 3 | 4 | 4 | 3 | 1 | -1 | -1 | -1 | 1 | 1 | 1 | 1 | 0 | -1 |
- 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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