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:
Russian Rivermouth surfForecast / CAL – Sonoma / USA
48hr Weather and Surf, issued 3 am Sunday 14 Dec 2025 PSTForecast update in hr min s Forecast update imminent
Russian Rivermouth surf forecast is for near shore open water. Breaking waves will often be smaller at less exposed spots.
Today's Russian Rivermouth sea temperature is
13.3° C
(Which is slightly warmer than usual)How big are the waves at Russian Rivermouth today?
The current surf forecast for Russian Rivermouth at 6AM is: 0.7m 12s primary swell from a West direction and 0.3m 15s secondary swell from a Southwest direction (forecast issued at 03:00am December 14). The wind direction is predicted to be glassy.
| Time (PST) & Date | Wave Height | Wave Period |
|---|---|---|
| Morning (14 Dec) | 2.5ft (0.7m) | 11s |
| Afternoon (14 Dec) | 2.5ft (0.7m) | 11s |
| Evening (14 Dec) | 2.5ft (0.7m) | 10s |
Table - waves today at Russian Rivermouth. (Swell directed towards the surf break)
Updates in hr min s Forecast update imminent
Sunday 14 | Monday 15 | Tuesday 16 | ||||||||||||||||||||||
| 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 | 7 PM | 10 PM | |
Rating (10 max) | ||||||||||||||||||||||||
Swell Height Map |    |    |    | |||||||||||||||||||||
| Wave Height (m) & direction (?) | ||||||||||||||||||||||||
| Period(s) (?) | 12 | 12 | 11 | 11 | 11 | 11 | 10 | 10 | 10 | 10 | 9 | 9 | 14 | 9 | 8 | 10 | 10 | 12 | 12 | 12 | 12 | 12 | 12 | 12 |
Wave (?)Graph  | ||||||||||||||||||||||||
 kJ (?) | 141 | 137 | 123 | 118 | 116 | 110 | 102 | 96 | 92 | 90 | 83 | 79 | 66 | 56 | 66 | 184 | 353 | 686 | 895 | 988 | 972 | 986 | 986 | 885 |
Wind (km/h) | ||||||||||||||||||||||||
| Wind State (?) onshore cross-onshore cross-shore cross-offshore offshore glassy | off | glass | glass | glass | glass | on | glass | cross- off | glass | glass | glass | glass | cross- on | cross- on | cross- on | cross- on | cross- on | cross- on | cross- on | cross- on | cross- on | cross- on | cross- on | cross- on |
High Tide / height (m) | 6:38AM 2.13 | 8:09PM 1.49 | 7:09AM 2.16 | 9:12PM 1.55 | 7:40AM 2.19 | |||||||||||||||||||
Low Tide / height (m) | 11:53PM 1.04 | 1:53PM 0.66 | 12:37AM 1.18 | 2:34PM 0.51 | 1:21AM 1.28 | 3:11PM 0.39 | ||||||||||||||||||
Sunday 14 | Monday 15 | Tuesday 16 | ||||||||||||||||||||||
| Sunrise | - | - | - | 7:20 | - | - | - | - | - | - | - | 7:22 | - | - | - | - | - | - | - | 7:22 | - | - | - | - |
| Sunset | - | - | - | - | - | 4:52 | - | - | - | - | - | - | - | 4:52 | - | - | - | - | - | - | - | 4:52 | - | - |
 | | |  |  | | |  | | | |  | | | | | | | | | |  |  | | |
Rain (mm) | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | 1 | 1 | 1 |
| Temp. °C | 8 | 8 | 8 | 11 | 15 | 14 | 12 | 11 | 12 | 12 | 12 | 15 | 18 | 19 | 16 | 16 | 15 | 16 | 16 | 17 | 17 | 16 | 16 | 15 |
| Feels °C (?) | 5 | 6 | 6 | 10 | 13 | 12 | 10 | 9 | 10 | 10 | 9 | 13 | 14 | 17 | 15 | 16 | 15 | 16 | 16 | 17 | 18 | 17 | 16 | 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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