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:
Canal surfForecast / Rio de Janeiro / Brazil
48hr Weather and Surf, issued 8 pm Saturday 13 Dec 2025 -03Forecast update in hr min s Forecast update imminent
Canal surf forecast is for near shore open water. Breaking waves will often be smaller at less exposed spots.
Today's Canal sea temperature is
26.3° C
(Which is 1.7°C warmer than normal for this time of year)How big are the waves at Canal today?
The current surf forecast for Canal at 2AM is: 1.0m 10s primary swell from a South direction and 0.4m 9s secondary swell from a East direction (forecast issued at 08:00pm December 13). An open ocean swell of 0.5m 4s is not directed at the surf break. The wind direction is predicted to be cross-offshore and the swell rating is 2.
| Time (-03) & Date | Wave Height | Wave Period |
|---|---|---|
| Morning (14 Dec) | 3ft (0.9m) | 10s |
| Afternoon (14 Dec) | 3ft (0.9m) | 10s |
| Evening (14 Dec) | 2.5ft (0.8m) | 10s |
Table - waves today at Canal. (Swell directed towards the surf break)
Updates in hr min s Forecast update imminent
Sat 13 | Sunday 14 | Monday 15 | Tuesday 16 | |||||||||||||||||||||
| 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 | 12 PM | 3 PM | |
Rating (10 max) | ||||||||||||||||||||||||
Swell Height Map |   |    |    |    | ||||||||||||||||||||
| Wave Height (m) & direction (?) | ||||||||||||||||||||||||
| Period(s) (?) | 10 | 10 | 10 | 10 | 10 | 10 | 10 | 10 | 10 | 10 | 10 | 10 | 9 | 9 | 10 | 10 | 10 | 8 | 8 | 8 | 8 | 9 | 9 | 9 |
Wave (?)Graph  | ||||||||||||||||||||||||
 kJ (?) | 300 | 290 | 240 | 200 | 194 | 158 | 156 | 156 | 123 | 122 | 122 | 92 | 87 | 64 | 70 | 71 | 71 | 82 | 80 | 80 | 63 | 74 | 76 | 99 |
Wind (km/h) | ||||||||||||||||||||||||
| Wind State (?) onshore cross-onshore cross-shore cross-offshore offshore glassy | cross- off | cross- off | cross- off | cross- off | glass | cross- off | glass | cross- on | cross | cross- off | cross- off | glass | glass | on | on | cross- on | cross | cross- off | cross- off | cross- off | glass | glass | glass | cross- on |
High Tide / height (m) | 10:36PM 0.79 | 11:15AM 0.79 | 11:43PM 0.85 | 11:52AM 0.82 | 12:33AM 0.90 | 12:25PM 0.84 | ||||||||||||||||||
Low Tide / height (m) | 3:57PM 0.42 | 4:30AM 0.35 | 4:55PM 0.34 | 5:26AM 0.35 | 5:44PM 0.26 | 6:16AM 0.34 | ||||||||||||||||||
Sat 13 | Sunday 14 | Monday 15 | Tuesday 16 | |||||||||||||||||||||
| Sunrise | - | - | - | - | 4:58 | - | - | - | - | - | - | - | 4:58 | - | - | - | - | - | - | - | 4:58 | - | - | - |
| Sunset | 6:29 | - | - | - | - | - | - | - | 6:30 | - | - | - | - | - | - | - | 6:30 | - | - | - | - | - | - | - |
 |  |  |  |  |  |  | | |  | |  |  | | | | | | | | | | | | |
Rain (mm) | - | - | 1 | 8 | 6 | 1 | - | 1 | 1 | - | - | - | - | - | - | - | 1 | - | - | - | - | - | - | 1 |
| Temp. °C | 24 | 23 | 24 | 23 | 23 | 24 | 28 | 25 | 25 | 24 | 24 | 24 | 24 | 26 | 27 | 27 | 26 | 25 | 24 | 24 | 25 | 26 | 28 | 28 |
| Feels °C (?) | 25 | 25 | 27 | 26 | 27 | 27 | 32 | 28 | 28 | 27 | 27 | 28 | 28 | 29 | 29 | 29 | 29 | 28 | 28 | 28 | 29 | 31 | 32 | 31 |
- 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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