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:
Keel surfForecast / Mayo and Achill Island / Ireland
48hr Weather and Surf, issued 5 am Saturday 13 Dec 2025 ISTForecast update in hr min s Forecast update imminent
Keel surf forecast is for near shore open water. Breaking waves will often be smaller at less exposed spots.
Today's Keel sea temperature is
10.8° C
(Which is normal for this time of year)How big are the waves at Keel today?
The current surf forecast for Keel at 7AM is: 4.5m 15s primary swell from a West direction and 3.5m 8s secondary swell from a Southwest direction (forecast issued at 05:00am December 13). The wind direction is predicted to be cross-onshore.
| Time (IST) & Date | Wave Height | Wave Period |
|---|---|---|
| Morning (13 Dec) | 13ft (4.0m) | 14s |
| Afternoon (13 Dec) | 21ft (6.5m) | 13s |
| Evening (13 Dec) | 18ft (5.5m) | 13s |
Table - waves today at Keel. (Swell directed towards the surf break)
Updates in hr min s Forecast update imminent
Saturday 13 | Sunday 14 | Monday 15 | Tue 16 | |||||||||||||||||||||
| 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 | 3 PM | 6 PM | 9 PM | 0 AM | |
Rating (10 max) | ||||||||||||||||||||||||
Swell Height Map |    |    |    |    | ||||||||||||||||||||
| Wave Height (m) & direction (?) | ||||||||||||||||||||||||
| Period(s) (?) | 16 | 15 | 14 | 14 | 13 | 13 | 13 | 13 | 12 | 12 | 12 | 13 | 13 | 13 | 13 | 13 | 13 | 14 | 14 | 14 | 16 | 15 | 15 | 15 |
Wave (?)Graph  | ||||||||||||||||||||||||
 kJ (?) | 15722 | 9551 | 6766 | 5861 | 13574 | 12622 | 10080 | 8223 | 8630 | 7861 | 7016 | 6441 | 5600 | 5053 | 5589 | 5468 | 5251 | 5520 | 6839 | 6613 | 10116 | 10181 | 9478 | 8819 |
Wind (km/h) | ||||||||||||||||||||||||
| Wind State (?) onshore cross-onshore cross-shore cross-offshore offshore glassy | on | cross- on | cross- on | cross- on | cross- on | on | on | cross- on | cross- on | cross- on | cross- on | cross- on | cross- on | cross- on | cross- on | cross- on | on | on | on | on | on | cross- on | cross- on | cross- on |
High Tide / height (m) | 12:17PM 2.86 | 1:20AM 2.81 | 1:24PM 2.79 | 2:14AM 2.91 | 2:24PM 2.80 | |||||||||||||||||||
Low Tide / height (m) | 6:14AM 1.38 | 6:54PM 0.95 | 7:26AM 1.32 | 7:49PM 0.97 | 8:25AM 1.19 | 8:37PM 0.95 | ||||||||||||||||||
Saturday 13 | Sunday 14 | Monday 15 | Tue 16 | |||||||||||||||||||||
| Sunrise | - | - | 8:49 | - | - | - | - | - | - | - | 8:51 | - | - | - | - | - | - | - | 8:52 | - | - | - | - | - |
| Sunset | - | - | - | - | 4:16 | - | - | - | - | - | - | - | 4:16 | - | - | - | - | - | - | - | 4:16 | - | - | - |
 | |  |  | |  | | |  | | | | | |  | |  | |  | |  | |  | | |
Rain (mm) | - | - | - | 3 | 3 | 3 | 2 | 1 | 6 | 2 | 1 | 2 | 2 | 5 | - | - | - | - | 1 | 1 | - | - | 1 | - |
| Temp. °C | 10 | 10 | 10 | 11 | 12 | 12 | 12 | 12 | 12 | 12 | 12 | 12 | 13 | 8 | 9 | 10 | 9 | 9 | 9 | 9 | 9 | 9 | 9 | 9 |
| Feels °C (?) | 0 | -2 | -3 | -2 | -1 | 1 | 3 | 4 | 3 | 4 | 5 | 2 | 3 | 5 | 3 | 3 | 2 | 3 | 3 | 3 | 3 | 4 | 4 | 3 |
- 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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