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:
Islas Marietas surfForecast / Nayarit / Mexico
48hr Weather and Surf, issued 5 pm Saturday 13 Dec 2025 CSTForecast update in hr min s Forecast update imminent
Islas Marietas surf forecast is for near shore open water. Breaking waves will often be smaller at less exposed spots.
Today's Islas Marietas sea temperature is
27.2° C
(Which is 1.2°C warmer than normal for this time of year)How big are the waves at Islas Marietas today?
The current surf forecast for Islas Marietas at 8PM is: 0.4m 17s primary swell from a Northwest direction and 0.6m 5s secondary swell from a Northwest direction (forecast issued at 05:00pm December 13). An open ocean swell of 0.5m 12s is not directed at the surf break. The wind direction is predicted to be offshore.
| Time (CST) & Date | Wave Height | Wave Period |
|---|---|---|
| Morning (13 Dec) | - | - |
| Afternoon (13 Dec) | 1ft (0.3m) | 16s |
| Evening (13 Dec) | 1.5ft (0.4m) | 16s |
Table - waves today at Islas Marietas. (Swell directed towards the surf break)
Updates in hr min s Forecast update imminent
Saturday 13 | Sunday 14 | Monday 15 | Tuesday 16 | |||||||||||||||||||||
| 3 PM | 6 PM | 9 PM | 0 AM | 3 AM | 6 AM | 9 AM | 12 PM | 3 PM | 6 PM | 9 PM | 0 AM | 3 AM | 6 AM | 9 AM | 12 PM | 3 PM | 6 PM | 9 PM | 0 AM | 3 AM | 6 AM | 9 AM | 12 PM | |
Rating (10 max) | ||||||||||||||||||||||||
Swell Height Map |    |    |    |    | ||||||||||||||||||||
| Wave Height (m) & direction (?) | ||||||||||||||||||||||||
| Period(s) (?) | 16 | 15 | 16 | 16 | 16 | 16 | 16 | 15 | 15 | 14 | 14 | 14 | 14 | 14 | 13 | 13 | 16 | 16 | 16 | 13 | 13 | 12 | 12 | 5 |
Wave (?)Graph  | ||||||||||||||||||||||||
 kJ (?) | 41 | 60 | 100 | 99 | 98 | 98 | 95 | 87 | 84 | 82 | 82 | 81 | 80 | 77 | 62 | 45 | 127 | 127 | 127 | 43 | 32 | 31 | 24 | 4 |
Wind (km/h) | ||||||||||||||||||||||||
| Wind State (?) onshore cross-onshore cross-shore cross-offshore offshore glassy | cross- off | off | off | cross- off | cross- off | cross- off | off | off | off | off | off | cross- off | cross- off | cross- off | cross- off | cross- on | cross | off | cross- off | cross- off | cross- off | off | cross- off | off |
High Tide / height (m) | 7:03PM 0.96 | 6:00AM 1.25 | 7:46PM 1.04 | 6:25AM 1.31 | 8:18PM 1.09 | 6:51AM 1.36 | ||||||||||||||||||
Low Tide / height (m) | 12:54PM 0.57 | 11:55PM 0.79 | 1:18PM 0.44 | 12:35AM 0.81 | 1:42PM 0.32 | 1:06AM 0.82 | ||||||||||||||||||
Saturday 13 | Sunday 14 | Monday 15 | Tuesday 16 | |||||||||||||||||||||
| Sunrise | - | - | - | - | - | - | 7:30 | - | - | - | - | - | - | - | 7:30 | - | - | - | - | - | - | - | 7:31 | - |
| Sunset | - | 6:22 | - | - | - | - | - | - | - | 6:22 | - | - | - | - | - | - | - | 6:23 | - | - | - | - | - | - |
 |  |  | | | | | | | | | | | | | | | | | | | | | | |
Rain (mm) | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - |
| Temp. °C | 24 | 24 | 24 | 23 | 23 | 23 | 23 | 24 | 24 | 24 | 24 | 24 | 24 | 23 | 23 | 25 | 25 | 25 | 24 | 24 | 24 | 23 | 24 | 24 |
| Feels °C (?) | 25 | 25 | 25 | 24 | 24 | 24 | 24 | 25 | 25 | 25 | 25 | 26 | 27 | 25 | 25 | 28 | 27 | 28 | 27 | 27 | 26 | 25 | 26 | 25 |
- 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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