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:
Capitola Rivermouth surfForecast / CAL – Santa Cruz / USA
48hr Weather and Surf, issued 9 pm Thursday 11 Dec 2025 PSTForecast update in hr min s Forecast update imminent
Capitola Rivermouth surf forecast is for near shore open water. Breaking waves will often be smaller at less exposed spots.
Today's Capitola Rivermouth sea temperature is
13.7° C
(Which is slightly warmer than usual)How big are the waves at Capitola Rivermouth today?
The current surf forecast for Capitola Rivermouth at 1AM is: 0.3m 13s primary swell from a South direction (forecast issued at 09:00pm December 11). An open ocean swell of 1.7m 15s is not directed at the surf break. The wind direction is predicted to be offshore.
| Time (PST) & Date | Wave Height | Wave Period |
|---|---|---|
| Morning (12 Dec) | 1ft (0.3m) | 13s |
| Afternoon (12 Dec) | 1ft (0.3m) | 13s |
| Evening (12 Dec) | 1ft (0.3m) | 12s |
Table - waves today at Capitola Rivermouth. (Swell directed towards the surf break)
Updates in hr min s Forecast update imminent
Thu 11 | Friday 12 | Saturday 13 | Sunday 14 | |||||||||||||||||||||
| 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 | 1 PM | 4 PM | |
Rating (10 max) | ||||||||||||||||||||||||
Swell Height Map |   |    |    |    | ||||||||||||||||||||
| Wave Height (m) & direction (?) | ||||||||||||||||||||||||
| Period(s) (?) | 13 | 13 | 13 | 13 | 13 | 13 | 13 | 13 | 12 | 12 | 12 | 12 | 16 | 16 | 12 | 12 | 12 | 12 | 15 | 15 | 15 | 15 | 11 | 11 |
Wave (?)Graph  | ||||||||||||||||||||||||
 kJ (?) | 14 | 31 | 31 | 31 | 31 | 31 | 31 | 34 | 31 | 29 | 29 | 29 | 41 | 41 | 26 | 25 | 25 | 25 | 36 | 56 | 56 | 55 | 91 | 89 |
Wind (km/h) | ||||||||||||||||||||||||
| Wind State (?) onshore cross-onshore cross-shore cross-offshore offshore glassy | off | off | off | off | off | off | glass | glass | glass | off | off | off | off | glass | glass | on | glass | glass | glass | off | off | cross- off | glass | glass |
High Tide / height (m) | 5:05AM 1.91 | 4:57PM 1.43 | 5:41AM 1.97 | 6:23PM 1.38 | 6:14AM 2.01 | |||||||||||||||||||
Low Tide / height (m) | 10:01PM 0.62 | 11:40AM 0.95 | 10:45PM 0.79 | 12:40PM 0.78 | 11:28PM 0.95 | 1:28PM 0.61 | ||||||||||||||||||
Thu 11 | Friday 12 | Saturday 13 | Sunday 14 | |||||||||||||||||||||
| Sunrise | - | - | - | - | - | 7:11 | - | - | - | - | - | - | - | 7:11 | - | - | - | - | - | - | - | 7:11 | - | - |
| Sunset | - | - | - | - | - | - | - | 4:51 | - | - | - | - | - | - | - | 4:51 | - | - | - | - | - | - | - | 4:51 |
 | | | | |  | | | | | | | | | | | | | | | | | | | |
Rain (mm) | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - |
| Temp. °C | 15 | 14 | 14 | 14 | 13 | 18 | 22 | 20 | 17 | 16 | 15 | 15 | 14 | 17 | 19 | 17 | 15 | 14 | 14 | 14 | 14 | 18 | 20 | 19 |
| Feels °C (?) | 11 | 10 | 10 | 10 | 9 | 14 | 20 | 18 | 15 | 13 | 12 | 12 | 11 | 14 | 17 | 15 | 15 | 13 | 12 | 11 | 11 | 15 | 18 | 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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