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:
Oceano surfForecast / CAL – San Luis Obispo / USA
48hr Weather and Surf, issued 3 pm Sunday 14 Dec 2025 PSTForecast update in hr min s Forecast update imminent
Oceano surf forecast is for near shore open water. Breaking waves will often be smaller at less exposed spots.
Today's Oceano sea temperature is
15.8° C
(Which is 1.7°C warmer than normal for this time of year)How big are the waves at Oceano today?
The current surf forecast for Oceano at 10PM is: 0.5m 11s primary swell from a West direction and 0.4m 4s secondary swell from a Northwest direction, 0.4m 4s secondary swell from a Northwest direction (forecast issued at 03:00pm December 14). The wind direction is predicted to be cross-shore.
| Time (PST) & Date | Wave Height | Wave Period |
|---|---|---|
| Morning (14 Dec) | - | - |
| Afternoon (14 Dec) | 1.5ft (0.5m) | 12s |
| Evening (14 Dec) | 1.5ft (0.5m) | 11s |
Table - waves today at Oceano. (Swell directed towards the surf break)
Updates in hr min s Forecast update imminent
Sunday 14 | Monday 15 | Tuesday 16 | Wednesday 17 | |||||||||||||||||||||
| 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 | 11 | 11 | 14 | 11 | 13 | 13 | 13 | 13 | 5 | 16 | 16 | 8 | 8 | 16 | 10 | 10 | 12 | 13 | 13 | 12 | 12 | 12 |
Wave (?)Graph  | ||||||||||||||||||||||||
 kJ (?) | 79 | 78 | 66 | 64 | 46 | 63 | 63 | 51 | 45 | 27 | 60 | 41 | 41 | 75 | 67 | 84 | 102 | 220 | 986 | 993 | 1104 | 905 | 876 | 841 |
Wind (km/h) | ||||||||||||||||||||||||
| Wind State (?) onshore cross-onshore cross-shore cross-offshore offshore glassy | cross- on | cross- on | cross- on | cross | cross | cross- off | cross- off | cross | cross- on | cross- on | cross- off | cross- off | cross- off | cross- off | cross- off | cross | cross | cross- on | cross | cross | cross | cross | cross | cross |
High Tide / height (m) | 7:15PM 1.37 | 6:24AM 2.03 | 8:14PM 1.40 | 6:54AM 2.07 | 9:04PM 1.44 | 7:25AM 2.12 | ||||||||||||||||||
Low Tide / height (m) | 1:07PM 0.61 | 11:48PM 1.04 | 1:46PM 0.47 | 12:28AM 1.13 | 2:22PM 0.35 | 1:06AM 1.18 | ||||||||||||||||||
Sunday 14 | Monday 15 | Tuesday 16 | Wednesday 17 | |||||||||||||||||||||
| Sunrise | - | - | - | - | - | - | - | 7:03 | - | - | - | - | - | - | - | 7:03 | - | - | - | - | - | - | - | 7:03 |
| Sunset | - | 4:51 | - | - | - | - | - | - | - | 4:51 | - | - | - | - | - | - | - | 4:52 | - | - | - | - | - | - |
 | |  | | | | | | | | | | | | | | | | |  | | | | | |
Rain (mm) | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - |
| Temp. °C | 16 | 14 | 13 | 14 | 14 | 14 | 14 | 18 | 23 | 22 | 18 | 17 | 16 | 16 | 16 | 19 | 23 | 21 | 18 | 18 | 18 | 17 | 16 | 20 |
| Feels °C (?) | 14 | 12 | 12 | 13 | 12 | 11 | 11 | 15 | 19 | 17 | 14 | 12 | 12 | 11 | 11 | 14 | 19 | 17 | 15 | 15 | 15 | 14 | 13 | 18 |
- 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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