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:
Double Point surfForecast / CAL – Marin County / USA
48hr Weather and Surf, issued 9 am Saturday 13 Dec 2025 PSTForecast update in hr min s Forecast update imminent
Double Point surf forecast is for near shore open water. Breaking waves will often be smaller at less exposed spots.
Today's Double Point sea temperature is
13.5° C
(Which is slightly warmer than usual)How big are the waves at Double Point today?
The current surf forecast for Double Point at 12PM is: 1.0m 12s primary swell from a West-northwest direction and 0.3m 12s secondary swell from a South direction (forecast issued at 09:00am December 13). An open ocean swell of 0.2m 2s is not directed at the surf break. The wind direction is predicted to be cross-offshore and the swell rating is 2.
| Time (PST) & Date | Wave Height | Wave Period |
|---|---|---|
| Morning (13 Dec) | 3.5ft (1.0m) | 12s |
| Afternoon (13 Dec) | 3ft (0.9m) | 12s |
| Evening (13 Dec) | 2.5ft (0.8m) | 12s |
Table - waves today at Double Point. (Swell directed towards the surf break)
Updates in hr min s Forecast update imminent
Saturday 13 | Sunday 14 | Monday 15 | Tue 16 | |||||||||||||||||||||
| 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 | 4 AM | |
Rating (10 max) | ||||||||||||||||||||||||
Swell Height Map |    |    |    |    | ||||||||||||||||||||
| Wave Height (m) & direction (?) | ||||||||||||||||||||||||
| Period(s) (?) | 12 | 12 | 12 | 12 | 12 | 12 | 12 | 12 | 12 | 11 | 11 | 11 | 11 | 10 | 10 | 10 | 9 | 9 | 14 | 9 | 9 | 10 | 10 | 10 |
Wave (?)Graph  | ||||||||||||||||||||||||
 kJ (?) | 361 | 298 | 242 | 224 | 176 | 189 | 180 | 139 | 130 | 91 | 87 | 114 | 108 | 98 | 94 | 90 | 81 | 78 | 56 | 55 | 54 | 147 | 360 | 551 |
Wind (km/h) | ||||||||||||||||||||||||
| Wind State (?) onshore cross-onshore cross-shore cross-offshore offshore glassy | cross- off | cross- off | cross- off | glass | glass | cross- off | off | cross- off | off | glass | glass | glass | cross- off | glass | glass | glass | cross- off | glass | cross | cross | cross | cross | cross | cross |
High Tide / height (m) | 6:38AM 1.21 | 7:20PM 0.82 | 7:14AM 1.24 | 8:40PM 0.84 | 7:47AM 1.26 | 9:45PM 0.87 | ||||||||||||||||||
Low Tide / height (m) | 1:59PM 0.23 | 1:13AM 0.36 | 2:50PM 0.13 | 2:02AM 0.45 | 3:34PM 0.04 | 2:49AM 0.52 | ||||||||||||||||||
Saturday 13 | Sunday 14 | Monday 15 | Tue 16 | |||||||||||||||||||||
| Sunrise | - | 7:18 | - | - | - | - | - | - | - | 7:18 | - | - | - | - | - | - | - | 7:18 | - | - | - | - | - | - |
| Sunset | - | - | - | 4:52 | - | - | - | - | - | - | - | 4:52 | - | - | - | - | - | - | - | 4:52 | - | - | - | - |
 |  | | | | | | | | | | | | |  | | |  | | | | |  | | |
Rain (mm) | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - |
| Temp. °C | 8 | 11 | 15 | 15 | 13 | 13 | 12 | 12 | 11 | 13 | 16 | 16 | 13 | 14 | 13 | 13 | 14 | 15 | 18 | 16 | 15 | 16 | 15 | 15 |
| Feels °C (?) | 3 | 7 | 12 | 12 | 10 | 10 | 9 | 9 | 8 | 10 | 14 | 14 | 10 | 12 | 11 | 10 | 11 | 12 | 14 | 12 | 13 | 15 | 14 | 14 |
- 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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