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:
Avalanche surfForecast / Oregon South / USA
48hr Weather and Surf, issued 3 am Friday 12 Dec 2025 PSTForecast update in hr min s Forecast update imminent
Avalanche surf forecast is for near shore open water. Breaking waves will often be smaller at less exposed spots.
Today's Avalanche sea temperature is
12.4° C
(Which is 1.8°C warmer than normal for this time of year)How big are the waves at Avalanche today?
The current surf forecast for Avalanche at 7AM is: 2.0m 13s primary swell from a West direction and 0.2m 14s secondary swell from a West-southwest direction (forecast issued at 03:00am December 12). The wind direction is predicted to be offshore and the swell rating is 4.
| Time (PST) & Date | Wave Height | Wave Period |
|---|---|---|
| Morning (12 Dec) | 6.5ft (2.0m) | 13s |
| Afternoon (12 Dec) | 5.5ft (1.7m) | 12s |
| Evening (12 Dec) | 5ft (1.5m) | 12s |
Table - waves today at Avalanche. (Swell directed towards the surf break)
Updates in hr min s Forecast update imminent
Friday 12 | Saturday 13 | Sunday 14 | ||||||||||||||||||||||
| 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) (?) | 13 | 13 | 13 | 13 | 12 | 12 | 12 | 12 | 12 | 11 | 11 | 11 | 11 | 13 | 12 | 12 | 11 | 11 | 11 | 10 | 10 | 10 | 10 | 10 |
Wave (?)Graph  | ||||||||||||||||||||||||
 kJ (?) | 1919 | 1561 | 1400 | 1230 | 988 | 841 | 722 | 615 | 511 | 403 | 332 | 329 | 335 | 759 | 668 | 767 | 596 | 545 | 853 | 806 | 755 | 615 | 588 | 625 |
Wind (km/h) | ||||||||||||||||||||||||
| Wind State (?) onshore cross-onshore cross-shore cross-offshore offshore glassy | off | cross- off | off | off | glass | cross | cross- off | cross- off | off | off | off | cross- off | cross | cross | cross- off | cross- off | cross- off | cross- off | cross- off | cross- off | cross- off | cross- off | cross- off | cross |
High Tide / height (m) | 6:28AM 2.27 | 6:28PM 1.69 | 7:11AM 2.33 | 7:54PM 1.62 | 7:50AM 2.39 | 9:12PM 1.65 | ||||||||||||||||||
Low Tide / height (m) | 11:38PM 0.35 | 1:01PM 0.78 | 12:28AM 0.59 | 2:07PM 0.58 | 1:18AM 0.81 | 3:01PM 0.38 | ||||||||||||||||||
Friday 12 | Saturday 13 | Sunday 14 | ||||||||||||||||||||||
| Sunrise | - | - | - | 7:43 | - | - | - | - | - | - | - | 7:43 | - | - | - | - | - | - | - | 7:45 | - | - | - | - |
| Sunset | - | - | - | - | - | 4:35 | - | - | - | - | - | - | - | 4:36 | - | - | - | - | - | - | - | 4:36 | - | - |
 |  | |  | | | | | | | | | |  | | |  | | |  | | | | | |
Rain (mm) | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - |
| Temp. °C | 13 | 12 | 12 | 12 | 15 | 14 | 12 | 12 | 11 | 11 | 10 | 12 | 14 | 13 | 12 | 11 | 11 | 11 | 11 | 11 | 12 | 13 | 13 | 14 |
| Feels °C (?) | 12 | 11 | 11 | 11 | 15 | 13 | 11 | 11 | 9 | 8 | 7 | 9 | 11 | 10 | 9 | 7 | 7 | 7 | 8 | 8 | 9 | 10 | 9 | 9 |
- Map Icons:
Break
Live Wave Height (m)
Live Wind Speed (km/h)
Surf Rating (10 Max)
Ocean Swells (m)- Wind Speed (km/h)
Latest Updates
Buy Less, Surf More This Black Friday
Surf-forecast is providing a free, all-access pass to our premium features and 12-day forecasts all weekend.
Quiksilver Teams Up With PrimaLoft® For World’s First Thermal Layering System for a Wetsuit.
Previously used in our snow jackets for mountain conditions, PrimaLoft® technology is making its debut in the surf industry. The aim is to bring mountain-grade warmth to the waves.
Vancouver Island’s Day Of Days With Reed Platenius
Surf-Forecast recently helped the 21-year-old Canadian pro surfer and adventurer score some cold water perfection at home.
Read more
Discover more articles and updates in the Greenroom.
FREE! Surf-Forecast.com widget for your website
The surf report / weather widget below is available to embed on third party websites free of charge and provides a summary of our Avalanche surf forecast. Simply grab the html code snippet that we provide and paste it into your own site. You can choose your preferred language and metric/imperial units for the surf forecast feed to suit users of your site. Click here to get the code.
Nearest