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:
Tam Tam surfForecast / Lebanon / Lebanon
48hr Weather and Surf, issued 7 pm Wednesday 10 Dec 2025 EETForecast update in hr min s Forecast update imminent
Tam Tam surf forecast is for near shore open water. Breaking waves will often be smaller at less exposed spots.
Today's Tam Tam sea temperature is
23.0° C
(Which is 3.4°C warmer than normal for this time of year)How big are the waves at Tam Tam today?
The current surf forecast for Tam Tam at 1AM is: 0.5m 8s primary swell from a West direction and 0.4m 4s secondary swell from a West-southwest direction (forecast issued at 07:00pm December 10). The wind direction is predicted to be cross-shore.
| Time (EET) & Date | Wave Height | Wave Period |
|---|---|---|
| Morning (11 Dec) | 1.5ft (0.5m) | 6s |
| Afternoon (11 Dec) | 2ft (0.6m) | 6s |
| Evening (11 Dec) | 1.5ft (0.5m) | 6s |
Table - waves today at Tam Tam. (Swell directed towards the surf break)
Updates in hr min s Forecast update imminent
Wednesday 10 | Thursday 11 | Friday 12 | Saturday 13 | |||||||||||||||||||||
| 5 PM | 8 PM | 11 PM | 2 AM | 5 AM | 8 AM | 11 AM | 2 PM | 5 PM | 8 PM | 11 PM | 2 AM | 5 AM | 8 AM | 11 AM | 2 PM | 5 PM | 8 PM | 11 PM | 2 AM | 5 AM | 8 AM | 11 AM | 2 PM | |
Rating (10 max) | ||||||||||||||||||||||||
Swell Height Map |   |    |    |    | ||||||||||||||||||||
| Wave Height (m) & direction (?) | ||||||||||||||||||||||||
| Period(s) (?) | 9 | 9 | 9 | 8 | 8 | 7 | 6 | 6 | 6 | 6 | 6 | 6 | 8 | 8 | 7 | 7 | 7 | 6 | 6 | 6 | 6 | 6 | 6 | 6 |
Wave (?)Graph  | ||||||||||||||||||||||||
 kJ (?) | 41 | 40 | 39 | 34 | 29 | 22 | 19 | 25 | 24 | 16 | 25 | 28 | 66 | 82 | 70 | 47 | 32 | 29 | 12 | 12 | 12 | 6 | 6 | 6 |
Wind (km/h) | ||||||||||||||||||||||||
| Wind State (?) onshore cross-onshore cross-shore cross-offshore offshore glassy | cross- on | cross | cross- off | cross | cross | glass | cross- off | glass | cross- off | cross | cross | cross | glass | glass | on | glass | glass | glass | glass | glass | glass | glass | cross- on | cross- on |
High Tide / height (m) | 2:16PM 0.25 | 1:53AM 0.29 | 3:30PM 0.25 | 3:09AM 0.26 | 4:47PM 0.27 | 4:46AM 0.24 | ||||||||||||||||||
Low Tide / height (m) | 7:41PM 0.16 | 8:50AM 0.10 | 9:12PM 0.17 | 9:57AM 0.12 | 11:00PM 0.16 | 11:05AM 0.13 | ||||||||||||||||||
Wednesday 10 | Thursday 11 | Friday 12 | Saturday 13 | |||||||||||||||||||||
| Sunrise | - | - | - | - | - | 6:31 | - | - | - | - | - | - | - | 6:33 | - | - | - | - | - | - | - | 6:33 | - | - |
| Sunset | - | - | - | - | - | - | - | 4:28 | - | - | - | - | - | - | - | 4:28 | - | - | - | - | - | - | - | 4:28 |
 | |  |  |  |  |  | | | | |  | |  |  |  | | | | | | | | | |
Rain (mm) | 2 | 1 | - | - | - | 1 | 6 | 7 | 4 | 2 | 1 | 1 | 1 | - | 1 | - | - | - | - | - | 1 | - | - | - |
| Temp. °C | 18 | 18 | 17 | 18 | 17 | 17 | 15 | 16 | 16 | 16 | 16 | 16 | 16 | 16 | 17 | 17 | 17 | 16 | 16 | 15 | 15 | 16 | 17 | 17 |
| Feels °C (?) | 15 | 16 | 15 | 16 | 15 | 17 | 15 | 16 | 15 | 15 | 15 | 14 | 15 | 15 | 16 | 16 | 17 | 16 | 16 | 15 | 15 | 15 | 15 | 15 |
- 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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