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:
Shark reef surfForecast / Ionian Sea / Greece
48hr Weather and Surf, issued 7 pm Sunday 14 Dec 2025 EETForecast update in hr min s Forecast update imminent
Shark reef surf forecast is for near shore open water. Breaking waves will often be smaller at less exposed spots.
Today's Shark reef sea temperature is
17.9° C
(Which is slightly warmer than usual)How big are the waves at Shark reef today?
The current surf forecast for Shark reef at 11PM is: 0.2m 4s primary swell from a West-northwest direction (forecast issued at 07:00pm December 14). The wind direction is predicted to be cross-offshore.
Updates in hr min s Forecast update imminent
Sunday 14 | Monday 15 | Tuesday 16 | Wednesday 17 | |||||||||||||||||||||
| 5 PM | 8 PM | 11 PM | 2 AM | 5 AM | 8 AM | 11 AM | 2 PM | 5 PM | 8 PM | 11 PM | 2 AM | 5 AM | 8 AM | 11 AM | 2 PM | 5 PM | 8 PM | 11 PM | 2 AM | 5 AM | 8 AM | 11 AM | 2 PM | |
Rating (10 max) | ||||||||||||||||||||||||
Swell Height Map |    |    |    |    | ||||||||||||||||||||
| Wave Height (m) & direction (?) | — | — | — | — | — | — | — | — | — | — | — | — | ||||||||||||
| Period(s) (?) | - | - | 4 | 4 | 4 | 4 | 4 | 4 | 4 | 4 | 4 | - | - | - | - | - | - | - | - | - | - | 6 | 6 | 7 |
Wave (?)Graph  | ||||||||||||||||||||||||
 kJ (?) | 0 | 0 | 1 | 1 | 2 | 2 | 2 | 2 | 1 | 1 | 1 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 3 | 19 | 35 |
Wind (km/h) | ||||||||||||||||||||||||
| Wind State (?) onshore cross-onshore cross-shore cross-offshore offshore glassy | cross- on | cross | cross- off | off | off | off | off | glass | glass | glass | off | off | off | off | off | glass | glass | glass | off | off | off | off | off | glass |
High Tide / height (m) | 1:08AM 0.14 | 1:33PM 0.10 | 1:41AM 0.14 | 2:16PM 0.11 | 2:14AM 0.15 | |||||||||||||||||||
Low Tide / height (m) | 6:28PM 0.04 | 7:49AM 0.04 | 7:08PM 0.04 | 8:24AM 0.03 | 7:46PM 0.04 | 8:57AM 0.02 | ||||||||||||||||||
Sunday 14 | Monday 15 | Tuesday 16 | Wednesday 17 | |||||||||||||||||||||
| Sunrise | - | - | - | - | - | 7:48 | - | - | - | - | - | - | - | 7:48 | - | - | - | - | - | - | - | 7:48 | - | - |
| Sunset | 5:15 | - | - | - | - | - | - | - | 5:15 | - | - | - | - | - | - | - | 5:15 | - | - | - | - | - | - | - |
 |  | | | | | | | | | | | | | | | | |  |  | |  | | | |
Rain (mm) | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - |
| Temp. °C | 15 | 14 | 14 | 13 | 12 | 11 | 12 | 14 | 14 | 14 | 13 | 12 | 12 | 11 | 12 | 13 | 14 | 14 | 13 | 13 | 13 | 12 | 12 | 14 |
| Feels °C (?) | 13 | 12 | 13 | 12 | 10 | 8 | 10 | 13 | 13 | 12 | 11 | 9 | 9 | 8 | 9 | 12 | 13 | 13 | 10 | 10 | 11 | 9 | 9 | 12 |
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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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