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:
Manchester Beach surfForecast / CAL – Mendocino County / USA
48hr Weather and Surf, issued 9 pm Monday 15 Dec 2025 PSTForecast update in hr min s Forecast update imminent
Manchester Beach surf forecast is for near shore open water. Breaking waves will often be smaller at less exposed spots.
Today's Manchester Beach sea temperature is
13.1° C
(Which is slightly warmer than usual)How big are the waves at Manchester Beach today?
The current surf forecast for Manchester Beach at 1AM is: 2.0m 12s primary swell from a West direction and 0.4m 13s secondary swell from a Southwest direction (forecast issued at 09:00pm December 15). The wind direction is predicted to be cross-onshore.
| Time (PST) & Date | Wave Height | Wave Period |
|---|---|---|
| Morning (16 Dec) | 7.5ft (2.3m) | 12s |
| Afternoon (16 Dec) | 7ft (2.2m) | 12s |
| Evening (16 Dec) | 7ft (2.1m) | 12s |
Table - waves today at Manchester Beach. (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) (?) | 11 | 10 | 12 | 12 | 12 | 12 | 12 | 12 | 12 | 12 | 12 | 12 | 12 | 12 | 12 | 12 | 12 | 12 | 11 | 11 | 11 | 11 | 11 | 10 |
Wave (?)Graph  | ||||||||||||||||||||||||
 kJ (?) | 392 | 632 | 1117 | 1539 | 1652 | 1505 | 1447 | 1324 | 1225 | 1227 | 1236 | 1248 | 1248 | 1245 | 1227 | 1215 | 892 | 1291 | 1399 | 1466 | 617 | 545 | 566 | 416 |
Wind (km/h) | ||||||||||||||||||||||||
| Wind State (?) onshore cross-onshore cross-shore cross-offshore offshore glassy | glass | glass | cross- on | glass | glass | glass | cross- off | cross- off | cross- off | cross- off | cross- off | cross | glass | on | on | on | cross- on | cross- on | cross- on | cross- off | glass | glass | cross- off | cross- off |
High Tide / height (m) | 9:21PM 1.19 | 7:54AM 1.83 | 10:14PM 1.24 | 8:27AM 1.86 | 10:59PM 1.28 | 9:01AM 1.88 | ||||||||||||||||||
Low Tide / height (m) | 1:32AM 0.87 | 3:20PM 0.03 | 2:15AM 0.95 | 3:56PM -0.06 | 2:56AM 0.99 | |||||||||||||||||||
Mon 15 | Tuesday 16 | Wednesday 17 | Thursday 18 | |||||||||||||||||||||
| Sunrise | - | - | - | - | - | 7:26 | - | - | - | - | - | - | - | 7:26 | - | - | - | - | - | - | - | 7:28 | - | - |
| Sunset | - | - | - | - | - | - | - | 4:52 | - | - | - | - | - | - | - | 4:53 | - | - | - | - | - | - | - | 4:53 |
 | |  | | |  | | |  | | | |  |  |  |  |  | | | | | | | | |
Rain (mm) | - | - | - | - | - | 3 | 2 | 1 | 1 | 1 | 3 | 1 | 1 | - | - | - | - | - | - | - | - | - | - | - |
| Temp. °C | 16 | 14 | 15 | 16 | 16 | 16 | 16 | 16 | 15 | 15 | 15 | 15 | 15 | 13 | 12 | 11 | 10 | 10 | 10 | 11 | 12 | 14 | 14 | 15 |
| Feels °C (?) | 16 | 14 | 15 | 17 | 17 | 17 | 17 | 16 | 14 | 14 | 14 | 15 | 16 | 10 | 8 | 8 | 8 | 8 | 8 | 9 | 10 | 12 | 12 | 13 |
- 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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