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:
Keweenaw Peninsula surfForecast / Lake Superior / USA
48hr Weather and Surf, issued 6 pm Thursday 11 Dec 2025 ESTForecast update in hr min s Forecast update imminent
Keweenaw Peninsula surf forecast is for near shore open water. Breaking waves will often be smaller at less exposed spots.
Today's Keweenaw Peninsula sea temperature is
4.6° C
(Which is slightly warmer than usual)How big are the waves at Keweenaw Peninsula today?
The current surf forecast for Keweenaw Peninsula at 11PM is: 0.4m 3s primary swell from a North-northwest direction (forecast issued at 06:00pm December 11). The wind direction is predicted to be cross-shore.
| Time (EST) & Date | Wave Height | Wave Period |
|---|---|---|
| Morning (11 Dec) | - | - |
| Afternoon (11 Dec) | 1.5ft (0.4m) | 3s |
| Evening (11 Dec) | 1.5ft (0.4m) | 3s |
Table - waves today at Keweenaw Peninsula. (Swell directed towards the surf break)
Updates in hr min s Forecast update imminent
Thursday 11 | Friday 12 | Saturday 13 | Sunday 14 | |||||||||||||||||||||
| 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 | 1 AM | 4 AM | 7 AM | 10 AM | 1 PM | |
Rating (10 max) | ||||||||||||||||||||||||
Swell Height Map |    |    |    |    | ||||||||||||||||||||
| Wave Height (m) & direction (?) | — | |||||||||||||||||||||||
| Period(s) (?) | 3 | 3 | 3 | 3 | 3 | 2 | 2 | - | 3 | 4 | 5 | 6 | 6 | 6 | 6 | 6 | 6 | 6 | 6 | 6 | 6 | 5 | 5 | 4 |
Wave (?)Graph  | ||||||||||||||||||||||||
 kJ (?) | 2 | 4 | 4 | 2 | 2 | 1 | 1 | 0 | 0 | 38 | 117 | 260 | 366 | 392 | 392 | 325 | 289 | 300 | 289 | 280 | 214 | 149 | 56 | 16 |
Wind (km/h) | ||||||||||||||||||||||||
| Wind State (?) onshore cross-onshore cross-shore cross-offshore offshore glassy | cross- on | cross- on | cross | cross | cross- off | cross- off | cross- off | cross- off | cross- off | cross | cross | cross | cross | cross | cross | cross | cross | cross- on | cross- on | cross- on | cross- on | cross- on | cross- on | cross |
High Tide / height (m) | n/a n/a | n/a n/a | n/a n/a | n/a n/a | n/a n/a | n/a n/a | n/a n/a | n/a n/a | n/a n/a | n/a n/a | n/a n/a | n/a n/a | n/a n/a | n/a n/a | n/a n/a | n/a n/a | n/a n/a | n/a n/a | n/a n/a | n/a n/a | n/a n/a | n/a n/a | n/a n/a | n/a n/a |
Low Tide / height (m) | n/a n/a | n/a n/a | n/a n/a | n/a n/a | n/a n/a | n/a n/a | n/a n/a | n/a n/a | n/a n/a | n/a n/a | n/a n/a | n/a n/a | n/a n/a | n/a n/a | n/a n/a | n/a n/a | n/a n/a | n/a n/a | n/a n/a | n/a n/a | n/a n/a | n/a n/a | n/a n/a | n/a n/a |
Thursday 11 | Friday 12 | Saturday 13 | Sunday 14 | |||||||||||||||||||||
| Sunrise | - | - | - | - | - | - | 8:30 | - | - | - | - | - | - | - | 8:30 | - | - | - | - | - | - | - | 8:32 | - |
| Sunset | 5:00 | - | - | - | - | - | - | - | 5:00 | - | - | - | - | - | - | - | 5:00 | - | - | - | - | - | - | - |
 |  | | | | | | |  |  | | | | | | | | | | | | | | | |
Rain (mm) | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - |
| Temp. °C | -3 | -2 | -2 | -2 | -1 | -1 | -2 | -2 | -3 | -6 | -9 | -10 | -11 | -12 | -12 | -12 | -11 | -10 | -10 | -9 | -9 | -9 | -8 | -8 |
| Feels °C (?) | -9 | -8 | -7 | -7 | -7 | -8 | -10 | -11 | -13 | -18 | -21 | -22 | -23 | -24 | -23 | -23 | -22 | -21 | -21 | -19 | -19 | -18 | -16 | -15 |
- 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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