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:
Lighthouse surfForecast / CAL – San Luis Obispo / USA
48hr Weather and Surf, issued 3 pm Saturday 13 Dec 2025 PSTForecast update in hr min s Forecast update imminent
Lighthouse surf forecast is for near shore open water. Breaking waves will often be smaller at less exposed spots.
Today's Lighthouse sea temperature is
15.9° C
(Which is 2.1°C warmer than normal for this time of year)How big are the waves at Lighthouse today?
The current surf forecast for Lighthouse at 9PM is: 0.9m 12s primary swell from a West-northwest direction and 0.3m 12s secondary swell from a South direction (forecast issued at 03:00pm December 13). The wind direction is predicted to be glassy and the swell rating is 2.
| Time (PST) & Date | Wave Height | Wave Period |
|---|---|---|
| Morning (13 Dec) | - | - |
| Afternoon (13 Dec) | 3ft (0.9m) | 12s |
| Evening (13 Dec) | 3ft (0.9m) | 12s |
Table - waves today at Lighthouse. (Swell directed towards the surf break)
Updates in hr min s Forecast update imminent
Saturday 13 | Sunday 14 | Monday 15 | Tuesday 16 | |||||||||||||||||||||
| 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 | 4 AM | 7 AM | 10 AM | |
Rating (10 max) | ||||||||||||||||||||||||
Swell Height Map |    |    |    |    | ||||||||||||||||||||
| Wave Height (m) & direction (?) | ||||||||||||||||||||||||
| Period(s) (?) | 12 | 12 | 12 | 12 | 12 | 12 | 12 | 15 | 15 | 11 | 11 | 14 | 14 | 14 | 14 | 13 | 13 | 13 | 9 | 16 | 16 | 16 | 10 | 10 |
Wave (?)Graph  | ||||||||||||||||||||||||
 kJ (?) | 278 | 222 | 199 | 156 | 156 | 121 | 111 | 81 | 78 | 66 | 64 | 62 | 67 | 65 | 64 | 63 | 46 | 45 | 40 | 51 | 66 | 66 | 95 | 149 |
Wind (km/h) | ||||||||||||||||||||||||
| Wind State (?) onshore cross-onshore cross-shore cross-offshore offshore glassy | cross- on | glass | glass | glass | glass | cross | glass | cross- on | glass | cross- on | cross- on | cross- on | cross | cross- off | cross- off | glass | cross | cross | cross- off | cross- off | cross- off | cross- off | off | glass |
High Tide / height (m) | 6:07PM 0.98 | 6:09AM 1.59 | 7:25PM 0.98 | 6:38AM 1.65 | 8:28PM 1.01 | 7:06AM 1.69 | ||||||||||||||||||
Low Tide / height (m) | 12:30PM 0.41 | 11:24PM 0.53 | 1:19PM 0.24 | 12:03AM 0.66 | 1:59PM 0.09 | 12:38AM 0.77 | ||||||||||||||||||
Saturday 13 | Sunday 14 | Monday 15 | Tuesday 16 | |||||||||||||||||||||
| Sunrise | - | - | - | - | - | - | - | 7:05 | - | - | - | - | - | - | - | 7:07 | - | - | - | - | - | - | - | 7:07 |
| Sunset | - | 4:52 | - | - | - | - | - | - | - | 4:52 | - | - | - | - | - | - | - | 4:52 | - | - | - | - | - | - |
 | |  | | | | | | | |  | | | | | |  | | | | | | | | |
Rain (mm) | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - |
| Temp. °C | 16 | 15 | 12 | 13 | 14 | 13 | 14 | 16 | 19 | 16 | 17 | 16 | 16 | 16 | 16 | 19 | 22 | 21 | 19 | 17 | 17 | 16 | 16 | 19 |
| Feels °C (?) | 16 | 15 | 12 | 13 | 13 | 12 | 13 | 14 | 18 | 14 | 15 | 14 | 13 | 14 | 13 | 17 | 19 | 18 | 16 | 14 | 14 | 13 | 13 | 17 |
- 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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