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:
Twin Rivers surfForecast / Washington / USA
48hr Weather and Surf, issued 9 pm Monday 15 Dec 2025 PSTForecast update in hr min s Forecast update imminent
Twin Rivers surf forecast is for near shore open water. Breaking waves will often be smaller at less exposed spots.
Today's Twin Rivers sea temperature is
9.8° C
(Which is slightly warmer than usual)| Time (PST) & Date | Wave Height | Wave Period |
|---|---|---|
| Morning (16 Dec) | - | - |
| Afternoon (16 Dec) | 1ft (0.3m) | 12s |
| Evening (16 Dec) | 1.5ft (0.5m) | 12s |
Table - waves today at Twin Rivers. (Swell directed towards the surf break)
Updates in hr min s Forecast update imminent
Mon 15 | Tuesday 16 | Wednesday 17 | Thursday 18 | |||||||||||||||||||||
| 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) (?) | 12 | 12 | 12 | 12 | 12 | 12 | 11 | 12 | 12 | 11 | 10 | 11 | 12 | 12 | 12 | 12 | 12 | 12 | 12 | 12 | 11 | 11 | 11 | 11 |
Wave (?)Graph  | ||||||||||||||||||||||||
 kJ (?) | 3068 | 0 | 0 | 0 | 0 | 0 | 0 | 31 | 76 | 0 | 2143 | 4489 | 4338 | 3901 | 3537 | 2970 | 2591 | 2088 | 1778 | 1748 | 1510 | 1371 | 0 | 3806 |
Wind (km/h) | ||||||||||||||||||||||||
| Wind State (?) onshore cross-onshore cross-shore cross-offshore offshore glassy | cross- off | cross- off | cross- off | cross- off | off | off | off | cross- off | cross- off | cross | cross | cross | cross | cross | cross | cross- off | cross- off | off | cross- off | cross- off | cross- off | cross | cross- off | cross- off |
High Tide / height (m) | 11:44PM 1.51 | 10:27AM 2.29 | 12:35AM 1.60 | 11:00AM 2.34 | 1:18AM 1.68 | 11:34AM 2.38 | ||||||||||||||||||
Low Tide / height (m) | 5:33PM 0.31 | 4:13AM 1.61 | 6:11PM 0.10 | 4:58AM 1.73 | 6:47PM -0.07 | 5:41AM 1.80 | ||||||||||||||||||
Mon 15 | Tuesday 16 | Wednesday 17 | Thursday 18 | |||||||||||||||||||||
| Sunrise | - | - | - | - | - | 8:00 | - | - | - | - | - | - | - | 8:00 | - | - | - | - | - | - | - | 8:00 | - | - |
| Sunset | - | - | - | - | - | - | - | 4:22 | - | - | - | - | - | - | - | 4:22 | - | - | - | - | - | - | - | 4:22 |
 |  |  |  | |  | |  |  |  | | | | |  | | | | | | | | | | |
Rain (mm) | 1 | - | 1 | - | 2 | 3 | 4 | 9 | 10 | 11 | 12 | 5 | 1 | 1 | 1 | 1 | 1 | 1 | 2 | 2 | 2 | 2 | 3 | 2 |
| Temp. °C | 9 | 9 | 9 | 9 | 9 | 10 | 10 | 12 | 12 | 12 | 6 | 6 | 7 | 7 | 7 | 7 | 7 | 6 | 6 | 6 | 6 | 7 | 10 | 9 |
| Feels °C (?) | 3 | 5 | 5 | 6 | 7 | 8 | 8 | 7 | 8 | 7 | 0 | -4 | -2 | -1 | 0 | 1 | 3 | 3 | 4 | 3 | 2 | 2 | 5 | 3 |
- 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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