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:
Bicas surfForecast / Lisboa / Portugal
48hr Weather and Surf, issued 11 am Tuesday 16 Dec 2025 WETForecast update in hr min s Forecast update imminent
Bicas surf forecast is for near shore open water. Breaking waves will often be smaller at less exposed spots.
Today's Bicas sea temperature is
16.1° C
(Which is slightly cooler than normal)How big are the waves at Bicas today?
The current surf forecast for Bicas at 4PM is: 4.5m 13s primary swell from a West-northwest direction (forecast issued at 11:00am December 16). The wind direction is predicted to be cross-onshore.
| Time (WET) & Date | Wave Height | Wave Period |
|---|---|---|
| Morning (16 Dec) | 13ft (4.0m) | 10s |
| Afternoon (16 Dec) | 15ft (4.5m) | 13s |
| Evening (16 Dec) | 13ft (4.0m) | 14s |
Table - waves today at Bicas. (Swell directed towards the surf break)
Updates in hr min s Forecast update imminent
Tuesday 16 | Wednesday 17 | Thursday 18 | Friday 19 | |||||||||||||||||||||
| 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 | 9 PM | 0 AM | 3 AM | 6 AM | |
Rating (10 max) | ||||||||||||||||||||||||
Swell Height Map |    |    |    |    | ||||||||||||||||||||
| Wave Height (m) & direction (?) | ||||||||||||||||||||||||
| Period(s) (?) | 10 | 13 | 13 | 14 | 14 | 14 | 14 | 14 | 14 | 13 | 13 | 13 | 13 | 13 | 12 | 24 | 23 | 21 | 20 | 19 | 18 | 17 | 17 | 16 |
Wave (?)Graph  | ||||||||||||||||||||||||
 kJ (?) | 3447 | 6839 | 7322 | 6950 | 6303 | 8560 | 4007 | 3316 | 2662 | 2098 | 1848 | 1487 | 1266 | 1099 | 1047 | 1105 | 8093 | 9635 | 9543 | 10100 | 8773 | 8339 | 8655 | 6267 |
Wind (km/h) | ||||||||||||||||||||||||
| Wind State (?) onshore cross-onshore cross-shore cross-offshore offshore glassy | on | cross- on | on | cross- on | cross- on | cross- on | cross- on | cross- on | cross- on | cross | cross- on | cross | cross | cross- off | glass | off | cross- off | cross- off | cross- off | cross- off | cross- off | cross- off | on | cross- on |
High Tide / height (m) | 12:15PM 2.79 | 12:38AM 2.89 | 12:57PM 2.83 | 1:15AM 2.99 | 1:35PM 2.87 | 1:51AM 3.07 | ||||||||||||||||||
Low Tide / height (m) | 6:10AM 1.20 | 6:26PM 1.13 | 6:51AM 1.11 | 7:02PM 1.08 | 7:29AM 1.03 | 7:36PM 1.04 | ||||||||||||||||||
Tuesday 16 | Wednesday 17 | Thursday 18 | Friday 19 | |||||||||||||||||||||
| Sunrise | 7:47 | - | - | - | - | - | - | - | 7:47 | - | - | - | - | - | - | - | 7:48 | - | - | - | - | - | - | - |
| Sunset | - | - | 5:16 | - | - | - | - | - | - | - | 5:16 | - | - | - | - | - | - | - | 5:16 | - | - | - | - | - |
 |  | |  |  | | | |  | | | | | | | | | |  |  | |  |  | | |
Rain (mm) | 1 | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | 3 | 8 | 1 |
| Temp. °C | 13 | 13 | 13 | 13 | 13 | 13 | 13 | 13 | 12 | 13 | 15 | 14 | 14 | 13 | 13 | 13 | 13 | 14 | 15 | 15 | 15 | 14 | 14 | 13 |
| Feels °C (?) | 2 | 2 | 1 | 2 | 4 | 6 | 7 | 9 | 8 | 10 | 13 | 12 | 12 | 11 | 12 | 11 | 11 | 10 | 11 | 10 | 11 | 11 | 12 | 8 |
- 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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