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:
Atlantida surfForecast / Rio Grande Do Sul / Brazil
48hr Weather and Surf, issued 2 pm Sunday 14 Dec 2025 -03Forecast update in hr min s Forecast update imminent
Atlantida surf forecast is for near shore open water. Breaking waves will often be smaller at less exposed spots.
Today's Atlantida sea temperature is
22.8° C
(Which is normal for this time of year)How big are the waves at Atlantida today?
The current surf forecast for Atlantida at 4PM is: 0.7m 10s primary swell from a Southeast direction and 1.2m 5s secondary swell from a East-northeast 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) | 4.5ft (1.3m) | 5s |
Table - waves today at Atlantida. (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) (?) | 9 | 10 | 5 | 5 | 5 | 5 | 6 | 6 | 7 | 7 | 7 | 6 | 7 | 7 | 5 | 6 | 6 | 6 | 6 | 7 | 8 | 8 | 9 | 9 |
Wave (?)Graph  | ||||||||||||||||||||||||
 kJ (?) | 103 | 96 | 79 | 88 | 95 | 103 | 103 | 93 | 102 | 124 | 111 | 85 | 77 | 62 | 57 | 130 | 113 | 139 | 226 | 277 | 418 | 686 | 402 | 304 |
Wind (km/h) | ||||||||||||||||||||||||
| Wind State (?) onshore cross-onshore cross-shore cross-offshore offshore glassy | cross- on | cross- on | cross- on | cross | cross | cross | cross | cross- on | cross- on | cross- on | cross | off | off | cross- off | cross- off | cross- off | cross | cross | cross | cross | cross- off | cross- off | cross- off | cross |
High Tide / height (m) | 12:18PM 0.33 | 7:48PM 0.32 | 12:26AM 0.34 | 8:49AM 0.31 | 12:06PM 0.31 | 12:51AM 0.38 | 10:04AM 0.33 | 12:54AM 0.42 | ||||||||||||||||
Low Tide / height (m) | 9:17AM 0.29 | 3:58PM 0.24 | 9:42PM 0.31 | 4:36AM 0.23 | 10:42AM 0.31 | 5:00PM 0.19 | 5:56AM 0.24 | 5:51PM 0.14 | 6:57AM 0.24 | |||||||||||||||
Sunday 14 | Monday 15 | Tuesday 16 | Wednesday 17 | |||||||||||||||||||||
| Sunrise | - | - | - | - | - | - | 5:13 | - | - | - | - | - | - | - | 5:13 | - | - | - | - | - | - | - | 5:13 | - |
| Sunset | - | - | 7:15 | - | - | - | - | - | - | - | 7:15 | - | - | - | - | - | - | - | 7:16 | - | - | - | - | - |
 |  | |  | | | | | |  |  |  |  | |  | | | | | |  | | | | |
Rain (mm) | - | - | - | - | - | - | - | - | - | - | 1 | 7 | 4 | 1 | 2 | 2 | - | - | - | - | - | - | - | - |
| Temp. °C | 24 | 23 | 23 | 22 | 22 | 21 | 21 | 24 | 25 | 26 | 23 | 22 | 22 | 21 | 20 | 20 | 24 | 25 | 22 | 20 | 19 | 19 | 18 | 20 |
| Feels °C (?) | 23 | 22 | 22 | 21 | 22 | 21 | 21 | 25 | 26 | 27 | 24 | 23 | 23 | 20 | 19 | 18 | 21 | 21 | 18 | 19 | 18 | 17 | 17 | 19 |
- 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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