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:
The Boiler surfForecast / Wales – Gower / UK
48hr Weather and Surf, issued 11 pm Friday 12 Dec 2025 GMTForecast update in hr min s Forecast update imminent
The Boiler surf forecast is for near shore open water. Breaking waves will often be smaller at less exposed spots.
Today's The Boiler sea temperature is
10.3° C
(Which is slightly cooler than normal)How big are the waves at The Boiler today?
The current surf forecast for The Boiler at 5AM is: 1.9m 16s primary swell from a West-southwest direction (forecast issued at 11:00pm December 12). The wind direction is predicted to be cross-onshore.
| Time (GMT) & Date | Wave Height | Wave Period |
|---|---|---|
| Morning (13 Dec) | 6ft (1.8m) | 16s |
| Afternoon (13 Dec) | 6ft (1.8m) | 14s |
| Evening (13 Dec) | 6.5ft (2.0m) | 8s |
Table - waves today at The Boiler. (Swell directed towards the surf break)
Updates in hr min s Forecast update imminent
Saturday 13 | Sunday 14 | Monday 15 | ||||||||||||||||||||||
| 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 | 3 PM | 6 PM | |
Rating (10 max) | ||||||||||||||||||||||||
Swell Height Map |  |    |    |    | ||||||||||||||||||||
| Wave Height (m) & direction (?) | ||||||||||||||||||||||||
| Period(s) (?) | 17 | 17 | 16 | 16 | 16 | 15 | 14 | 14 | 8 | 8 | 9 | 9 | 9 | 11 | 10 | 10 | 11 | 11 | 11 | 11 | 11 | 11 | 11 | 13 |
Wave (?)Graph  | ||||||||||||||||||||||||
 kJ (?) | 2723 | 2437 | 2162 | 1849 | 1592 | 1374 | 1370 | 439 | 476 | 708 | 716 | 700 | 1026 | 1487 | 1469 | 1684 | 1816 | 1948 | 2107 | 1988 | 1606 | 1291 | 1131 | 1288 |
Wind (km/h) | ||||||||||||||||||||||||
| Wind State (?) onshore cross-onshore cross-shore cross-offshore offshore glassy | cross- on | cross- on | cross- on | cross- on | cross- on | cross- on | cross- on | cross- on | cross- on | cross- on | cross- on | cross- on | on | on | on | on | on | on | on | on | on | on | glass | cross- off |
High Tide / height (m) | 12:27AM 7.42 | 12:54PM 7.61 | 1:33AM 7.38 | 1:59PM 7.61 | 2:37AM 7.54 | 2:59PM 7.76 | ||||||||||||||||||
Low Tide / height (m) | 6:14PM 3.05 | 6:35AM 3.24 | 7:18PM 3.14 | 7:42AM 3.23 | 8:20PM 3.07 | 8:42AM 3.06 | ||||||||||||||||||
Saturday 13 | Sunday 14 | Monday 15 | ||||||||||||||||||||||
| Sunrise | - | - | - | - | 8:12 | - | - | - | - | - | - | - | 8:14 | - | - | - | - | - | - | - | 8:14 | - | - | - |
| Sunset | - | - | - | - | - | - | 4:06 | - | - | - | - | - | - | - | 4:06 | - | - | - | - | - | - | - | 4:06 | - |
 | | | |  | |  |  |  | | | | | | | |  | |  | |  |  | | | |
Rain (mm) | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | 1 | 4 | 6 | 7 | 8 | 4 | 4 | 2 |
| Temp. °C | 10 | 10 | 10 | 10 | 9 | 9 | 10 | 10 | 9 | 9 | 10 | 10 | 10 | 11 | 11 | 11 | 12 | 12 | 11 | 11 | 11 | 11 | 10 | 9 |
| Feels °C (?) | 6 | 6 | 6 | 6 | 4 | 4 | 4 | 4 | 3 | 2 | 3 | 3 | 3 | 4 | 4 | 4 | 5 | 5 | 4 | 5 | 5 | 6 | 9 | 6 |
- 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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