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:
Miramar surfForecast / Douro & Minho / Portugal
48hr Weather and Surf, issued 11 am Thursday 11 Dec 2025 WETForecast update in hr min s Forecast update imminent
Miramar surf forecast is for near shore open water. Breaking waves will often be smaller at less exposed spots.
Today's Miramar sea temperature is
15.6° C
(Which is normal for this time of year)How big are the waves at Miramar today?
The current surf forecast for Miramar at 2PM is: 2.1m 13s primary swell from a West-northwest direction and 0.1m 24s secondary swell from a West direction (forecast issued at 11:00am December 11). The wind direction is predicted to be cross-shore and the swell rating is 11.
| Time (WET) & Date | Wave Height | Wave Period |
|---|---|---|
| Morning (11 Dec) | 8ft (2.5m) | 13s |
| Afternoon (11 Dec) | 6ft (1.9m) | 13s |
| Evening (11 Dec) | 8ft (2.5m) | 14s |
Table - waves today at Miramar. (Swell directed towards the surf break)
Updates in hr min s Forecast update imminent
Thursday 11 | Friday 12 | Saturday 13 | Sunday 14 | |||||||||||||||||||||
| 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 | 3 AM | 6 AM | |
Rating (10 max) | ||||||||||||||||||||||||
Swell Height Map |    |    |    |    | ||||||||||||||||||||
| Wave Height (m) & direction (?) | ||||||||||||||||||||||||
| Period(s) (?) | 13 | 13 | 13 | 13 | 14 | 13 | 14 | 16 | 16 | 18 | 19 | 19 | 18 | 18 | 18 | 18 | 17 | 16 | 16 | 16 | 15 | 14 | 14 | 14 |
Wave (?)Graph  | ||||||||||||||||||||||||
 kJ (?) | 2200 | 1605 | 1249 | 1226 | 2542 | 2993 | 2816 | 6005 | 6278 | 9536 | 15215 | 16279 | 15839 | 13413 | 11401 | 10022 | 8411 | 6063 | 5299 | 4219 | 2953 | 2374 | 2200 | 1674 |
Wind (km/h) | ||||||||||||||||||||||||
| Wind State (?) onshore cross-onshore cross-shore cross-offshore offshore glassy | cross | cross | cross | cross | cross | cross- off | cross- off | cross- off | off | cross- off | cross- off | cross- off | cross- off | cross- off | cross- off | cross- off | off | cross- off | cross- off | off | off | off | off | off |
High Tide / height (m) | 7:36AM 2.58 | 8:19PM 2.21 | 8:40AM 2.43 | 9:25PM 2.17 | 9:45AM 2.33 | 10:28PM 2.20 | ||||||||||||||||||
Low Tide / height (m) | 2:04PM 0.66 | 2:14AM 0.86 | 3:09PM 0.77 | 3:25AM 0.93 | 4:11PM 0.81 | 4:34AM 0.93 | ||||||||||||||||||
Thursday 11 | Friday 12 | Saturday 13 | Sunday 14 | |||||||||||||||||||||
| Sunrise | 7:48 | - | - | - | - | - | - | - | 7:48 | - | - | - | - | - | - | - | 7:50 | - | - | - | - | - | - | - |
| Sunset | - | - | 5:06 | - | - | - | - | - | - | - | 5:06 | - | - | - | - | - | - | - | 5:06 | - | - | - | - | - |
 |  | |  | | |  | |  | | | | |  |  |  |  | | |  | | | | | |
Rain (mm) | - | - | - | 1 | 2 | 4 | 7 | 7 | 2 | 2 | 2 | 2 | 3 | 1 | - | - | - | - | - | - | - | - | - | - |
| Temp. °C | 12 | 13 | 14 | 13 | 13 | 12 | 11 | 11 | 11 | 11 | 11 | 10 | 10 | 12 | 12 | 12 | 14 | 14 | 16 | 15 | 14 | 13 | 13 | 12 |
| Feels °C (?) | 9 | 9 | 10 | 9 | 8 | 7 | 7 | 7 | 7 | 7 | 7 | 5 | 6 | 7 | 9 | 9 | 10 | 10 | 13 | 12 | 12 | 11 | 10 | 9 |
- Map Icons:
Break
Live Wave Height (m)
Live Wind Speed (km/h)
Surf Rating (10 Max)
Ocean Swells (m)- Wind Speed (km/h)
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