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:
Matinhos surfForecast / Paraná / Brazil
48hr Weather and Surf, issued 2 pm Sunday 14 Dec 2025 -03Forecast update in hr min s Forecast update imminent
Matinhos surf forecast is for near shore open water. Breaking waves will often be smaller at less exposed spots.
Today's Matinhos sea temperature is
25.9° C
(Which is 1.4°C warmer than normal for this time of year)How big are the waves at Matinhos today?
The current surf forecast for Matinhos at 6PM is: 0.6m 9s primary swell from a Southeast direction and 0.2m 8s secondary swell from a East direction, 0.3m 6s secondary swell from a East-southeast direction (forecast issued at 02:00pm December 14). The wind direction is predicted to be cross-onshore.
| Time (-03) & Date | Wave Height | Wave Period |
|---|---|---|
| Morning (14 Dec) | - | - |
| Afternoon (14 Dec) | 2.5ft (0.7m) | 10s |
| Evening (14 Dec) | 2ft (0.6m) | 9s |
Table - waves today at Matinhos. (Swell directed towards the surf break)
Updates in hr min s Forecast update imminent
Sunday 14 | Monday 15 | Tuesday 16 | Wednesday 17 | |||||||||||||||||||||
| 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 | 10 | 9 | 9 | 9 | 9 | 9 | 10 | 10 | 10 | 10 | 10 | 10 | 10 | 10 | 10 | 4 | 6 | 8 | 8 | 8 | 8 | 8 | 8 |
Wave (?)Graph  | ||||||||||||||||||||||||
 kJ (?) | 81 | 81 | 71 | 59 | 42 | 42 | 43 | 48 | 50 | 49 | 48 | 47 | 24 | 23 | 23 | 23 | 32 | 297 | 643 | 573 | 455 | 434 | 327 | 257 |
Wind (km/h) | ||||||||||||||||||||||||
| Wind State (?) onshore cross-onshore cross-shore cross-offshore offshore glassy | on | cross- on | cross- on | glass | cross- on | glass | glass | glass | cross- on | cross- on | cross | cross- off | glass | glass | glass | cross- on | cross- on | cross- on | cross- on | cross- on | cross- on | cross- on | cross- on | on |
High Tide / height (m) | 10:59AM 1.05 | 11:27PM 1.13 | 11:47AM 1.08 | 12:23AM 1.18 | 12:32PM 1.11 | 1:14AM 1.23 | ||||||||||||||||||
Low Tide / height (m) | 5:54PM 0.45 | 6:32AM 0.44 | 6:33PM 0.35 | 7:11AM 0.43 | 7:06PM 0.26 | 7:46AM 0.42 | ||||||||||||||||||
Sunday 14 | Monday 15 | Tuesday 16 | Wednesday 17 | |||||||||||||||||||||
| Sunrise | - | - | - | - | - | - | 5:16 | - | - | - | - | - | - | - | 5:16 | - | - | - | - | - | - | - | 5:16 | - |
| Sunset | - | - | 7:00 | - | - | - | - | - | - | - | 7:00 | - | - | - | - | - | - | - | 7:00 | - | - | - | - | - |
 |  | |  |  |  |  | | |  | |  | | | | | |  |  |  | | | |  | |
Rain (mm) | - | - | - | 1 | - | - | - | - | - | 3 | 2 | 1 | 1 | - | - | - | - | 6 | 1 | 1 | 1 | 1 | 1 | 1 |
| Temp. °C | 25 | 26 | 25 | 23 | 23 | 23 | 23 | 25 | 27 | 26 | 25 | 24 | 24 | 24 | 24 | 28 | 24 | 22 | 22 | 22 | 22 | 22 | 22 | 22 |
| Feels °C (?) | 27 | 28 | 28 | 27 | 26 | 27 | 27 | 29 | 29 | 29 | 28 | 28 | 28 | 29 | 28 | 31 | 22 | 21 | 20 | 21 | 21 | 21 | 21 | 21 |
- 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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