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:
Reef surfForecast / Ericeira / Portugal
48hr Weather and Surf, issued 5 am Wednesday 17 Dec 2025 WETForecast update in hr min s Forecast update imminent
Reef surf forecast is for near shore open water. Breaking waves will often be smaller at less exposed spots.
Today's Reef sea temperature is
16.1° C
(Which is normal for this time of year)How big are the waves at Reef today?
The current surf forecast for Reef at 8AM is: 3.5m 14s primary swell from a Northwest direction (forecast issued at 05:00am December 17). An open ocean swell of 1.4m 8s is not directed at the surf break. The wind direction is predicted to be cross-shore and the swell rating is 11.
| Time (WET) & Date | Wave Height | Wave Period |
|---|---|---|
| Morning (17 Dec) | 11ft (3.5m) | 13s |
| Afternoon (17 Dec) | 10ft (3.0m) | 13s |
| Evening (17 Dec) | 8ft (2.5m) | 13s |
Table - waves today at Reef. (Swell directed towards the surf break)
Updates in hr min s Forecast update imminent
Wednesday 17 | Thursday 18 | Friday 19 | Sat 20 | |||||||||||||||||||||
| 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) (?) | 14 | 14 | 13 | 13 | 13 | 13 | 13 | 12 | 12 | 24 | 22 | 21 | 19 | 19 | 18 | 17 | 17 | 16 | 17 | 16 | 16 | 17 | 17 | 17 |
Wave (?)Graph  | ||||||||||||||||||||||||
 kJ (?) | 6751 | 4573 | 4313 | 3597 | 3123 | 2537 | 2185 | 1839 | 1839 | 4440 | 19184 | 18081 | 20604 | 20951 | 17108 | 16533 | 14683 | 12279 | 13957 | 10772 | 13089 | 14483 | 13673 | 12738 |
Wind (km/h) | ||||||||||||||||||||||||
| Wind State (?) onshore cross-onshore cross-shore cross-offshore offshore glassy | cross | cross | cross- off | cross- off | cross | cross | glass | cross- off | cross- off | cross- off | cross- off | cross | cross | cross | cross | cross | cross | cross | cross | cross | cross | cross | cross | cross- on |
High Tide / height (m) | 12:41AM 2.45 | 1:01PM 2.38 | 1:20AM 2.55 | 1:41PM 2.45 | 1:57AM 2.64 | 2:18PM 2.50 | ||||||||||||||||||
Low Tide / height (m) | 6:53AM 0.66 | 7:04PM 0.62 | 7:32AM 0.56 | 7:41PM 0.56 | 8:09AM 0.48 | 8:17PM 0.51 | ||||||||||||||||||
Wednesday 17 | Thursday 18 | Friday 19 | Sat 20 | |||||||||||||||||||||
| Sunrise | - | - | 7:50 | - | - | - | - | - | - | - | 7:50 | - | - | - | - | - | - | - | 7:50 | - | - | - | - | - |
| Sunset | - | - | - | - | 5:15 | - | - | - | - | - | - | - | 5:16 | - | - | - | - | - | - | - | 5:16 | - | - | - |
 | |  | |  |  | |  | | | | | | |  |  | | | | | | | | | |
Rain (mm) | - | - | - | - | - | - | - | - | - | - | - | - | - | - | 1 | 13 | 4 | 1 | - | - | - | - | - | - |
| Temp. °C | 13 | 13 | 13 | 14 | 14 | 13 | 13 | 13 | 12 | 12 | 13 | 15 | 16 | 15 | 15 | 14 | 14 | 14 | 14 | 14 | 14 | 14 | 13 | 13 |
| Feels °C (?) | 6 | 7 | 9 | 11 | 11 | 11 | 12 | 11 | 9 | 9 | 10 | 10 | 10 | 9 | 9 | 10 | 9 | 7 | 7 | 7 | 7 | 7 | 7 | 8 |
- 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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