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:
Punta Medanos surfForecast / Buenos Aires / Argentina
48hr Weather and Surf, issued 2 pm Saturday 13 Dec 2025 -03Forecast update in hr min s Forecast update imminent
Punta Medanos surf forecast is for near shore open water. Breaking waves will often be smaller at less exposed spots.
Today's Punta Medanos sea temperature is
19.9° C
(Which is 2.4°C warmer than normal for this time of year)How big are the waves at Punta Medanos today?
The current surf forecast for Punta Medanos at 5PM is: 0.7m 11s primary swell from a South direction and 0.7m 10s secondary swell from a East-southeast direction, 0.6m 4s secondary swell from a South direction (forecast issued at 02:00pm December 13). The wind direction is predicted to be cross-onshore.
| Time (-03) & Date | Wave Height | Wave Period |
|---|---|---|
| Morning (13 Dec) | - | - |
| Afternoon (13 Dec) | 2.5ft (0.7m) | 11s |
| Evening (13 Dec) | 2ft (0.6m) | 9s |
Table - waves today at Punta Medanos. (Swell directed towards the surf break)
Updates in hr min s Forecast update imminent
Saturday 13 | Sunday 14 | Monday 15 | Tuesday 16 | |||||||||||||||||||||
| 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 | 9 AM | |
Rating (10 max) | ||||||||||||||||||||||||
Swell Height Map |    |    |    |    | ||||||||||||||||||||
| Wave Height (m) & direction (?) | ||||||||||||||||||||||||
| Period(s) (?) | 10 | 11 | 10 | 9 | 9 | 9 | 9 | 9 | 9 | 5 | 6 | 9 | 5 | 9 | 12 | 12 | 11 | 10 | 6 | 8 | 7 | 6 | 6 | 6 |
Wave (?)Graph  | ||||||||||||||||||||||||
 kJ (?) | 140 | 114 | 96 | 69 | 68 | 126 | 42 | 42 | 42 | 45 | 50 | 81 | 37 | 27 | 29 | 44 | 60 | 131 | 372 | 645 | 457 | 267 | 154 | 141 |
Wind (km/h) | ||||||||||||||||||||||||
| Wind State (?) onshore cross-onshore cross-shore cross-offshore offshore glassy | cross- on | cross- on | cross | cross- on | on | cross- on | cross | cross- on | cross- on | on | on | on | on | glass | off | off | cross- off | cross- on | cross- on | cross- on | cross | cross | cross | cross- on |
High Tide / height (m) | 5:20PM 0.54 | 5:28AM 0.33 | 6:07PM 0.49 | 6:11AM 0.37 | 6:52PM 0.45 | 6:47AM 0.42 | ||||||||||||||||||
Low Tide / height (m) | 9:52AM 0.11 | 11:59PM 0.18 | 10:59AM 0.13 | 12:29AM 0.20 | 12:06PM 0.14 | 12:52AM 0.21 | ||||||||||||||||||
Saturday 13 | Sunday 14 | Monday 15 | Tuesday 16 | |||||||||||||||||||||
| Sunrise | - | - | - | - | - | - | 5:20 | - | - | - | - | - | - | - | 5:20 | - | - | - | - | - | - | - | 5:20 | - |
| Sunset | - | - | 8:00 | - | - | - | - | - | - | - | 8:00 | - | - | - | - | - | - | - | 8:01 | - | - | - | - | - |
 |  | |  |  | |  | | | | | | |  | |  | | | |  | | | | | |
Rain (mm) | - | - | - | - | 1 | 4 | 4 | 1 | - | 1 | - | - | - | - | - | - | - | - | - | - | - | - | - | 1 |
| Temp. °C | 26 | 22 | 22 | 21 | 18 | 16 | 17 | 18 | 19 | 19 | 18 | 18 | 18 | 17 | 16 | 18 | 24 | 22 | 17 | 17 | 16 | 13 | 12 | 15 |
| Feels °C (?) | 22 | 17 | 21 | 20 | 16 | 14 | 17 | 18 | 19 | 19 | 18 | 18 | 18 | 18 | 16 | 17 | 20 | 16 | 9 | 10 | 11 | 9 | 7 | 9 |
- 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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