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:
Swift Street surfForecast / CAL – Santa Cruz / USA
48hr Weather and Surf, issued 9 am Wednesday 10 Dec 2025 PSTForecast update in hr min s Forecast update imminent
Swift Street surf forecast is for near shore open water. Breaking waves will often be smaller at less exposed spots.
Today's Swift Street sea temperature is
13.8° C
(Which is slightly warmer than usual)How big are the waves at Swift Street today?
The current surf forecast for Swift Street at 5PM is: 1.3m 13s primary swell from a West-northwest direction and 0.1m 15s secondary swell from a Southwest direction (forecast issued at 09:00am December 10). The wind direction is predicted to be cross-offshore and the swell rating is 2.
| Time (PST) & Date | Wave Height | Wave Period |
|---|---|---|
| Morning (10 Dec) | 4.5ft (1.3m) | 12s |
| Afternoon (10 Dec) | 4.5ft (1.3m) | 14s |
| Evening (10 Dec) | 4.5ft (1.4m) | 13s |
Table - waves today at Swift Street. (Swell directed towards the surf break)
Updates in hr min s Forecast update imminent
Wednesday 10 | Thursday 11 | Friday 12 | Sat 13 | |||||||||||||||||||||
| 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 | 14 | 13 | 13 | 13 | 14 | 14 | 14 | 14 | 15 | 15 | 16 | 15 | 15 | 15 | 14 | 14 | 14 | 13 | 13 | 13 | 13 | 13 |
Wave (?)Graph  | ||||||||||||||||||||||||
 kJ (?) | 371 | 436 | 702 | 634 | 615 | 700 | 767 | 943 | 988 | 988 | 1191 | 1307 | 1324 | 1273 | 1207 | 1174 | 1016 | 1002 | 803 | 651 | 632 | 538 | 447 | 440 |
Wind (km/h) | ||||||||||||||||||||||||
| Wind State (?) onshore cross-onshore cross-shore cross-offshore offshore glassy | off | off | glass | cross- off | off | off | off | off | off | off | cross- off | cross- off | off | off | off | off | off | off | glass | cross | glass | off | off | off |
High Tide / height (m) | 1:56PM 1.37 | 4:29AM 1.46 | 3:11PM 1.16 | 5:10AM 1.50 | 4:48PM 1.01 | |||||||||||||||||||
Low Tide / height (m) | 8:56AM 0.90 | 8:55PM 0.07 | 10:19AM 0.75 | 9:48PM 0.25 | 11:31AM 0.57 | 10:40PM 0.42 | ||||||||||||||||||
Wednesday 10 | Thursday 11 | Friday 12 | Sat 13 | |||||||||||||||||||||
| Sunrise | - | 7:09 | - | - | - | - | - | - | - | 7:09 | - | - | - | - | - | - | - | 7:11 | - | - | - | - | - | - |
| Sunset | - | - | - | 4:51 | - | - | - | - | - | - | - | 4:51 | - | - | - | - | - | - | - | 4:51 | - | - | - | - |
 |  | | | | | | | | | | | | | | | | | | | | | | | |
Rain (mm) | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - |
| Temp. °C | 12 | 16 | 21 | 20 | 17 | 16 | 15 | 15 | 15 | 18 | 22 | 21 | 17 | 16 | 16 | 15 | 15 | 18 | 21 | 20 | 17 | 16 | 16 | 15 |
| Feels °C (?) | 8 | 13 | 19 | 18 | 14 | 13 | 11 | 12 | 11 | 15 | 20 | 19 | 14 | 13 | 13 | 11 | 11 | 15 | 19 | 18 | 15 | 13 | 13 | 12 |
- 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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