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:
Guarita surfForecast / Rio Grande Do Sul / Brazil
48hr Weather and Surf, issued 8 pm Friday 12 Dec 2025 -03Forecast update in hr min s Forecast update imminent
Guarita surf forecast is for near shore open water. Breaking waves will often be smaller at less exposed spots.
Today's Guarita sea temperature is
23.0° C
(Which is normal for this time of year)How big are the waves at Guarita today?
The current surf forecast for Guarita at 11PM is: 1.3m 10s primary swell from a South-southeast direction and 0.4m 9s secondary swell from a East-northeast direction (forecast issued at 08:00pm December 12). The wind direction is predicted to be offshore and the swell rating is 2.
| Time (-03) & Date | Wave Height | Wave Period |
|---|---|---|
| Morning (12 Dec) | - | - |
| Afternoon (12 Dec) | - | - |
| Evening (12 Dec) | 4.5ft (1.3m) | 10s |
Table - waves today at Guarita. (Swell directed towards the surf break)
Updates in hr min s Forecast update imminent
Fri 12 | Saturday 13 | Sunday 14 | Monday 15 | |||||||||||||||||||||
| 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 | 9 | 9 | 9 | 9 | 9 | 6 | 6 | 6 | 7 | 7 | 7 | 7 | 7 | 7 |
Wave (?)Graph  | ||||||||||||||||||||||||
 kJ (?) | 371 | 346 | 302 | 302 | 256 | 256 | 220 | 220 | 164 | 157 | 128 | 128 | 113 | 88 | 88 | 104 | 139 | 170 | 152 | 237 | 217 | 124 | 127 | 127 |
Wind (km/h) | ||||||||||||||||||||||||
| Wind State (?) onshore cross-onshore cross-shore cross-offshore offshore glassy | cross- off | off | off | off | cross- off | cross | on | cross- on | cross- on | cross | cross | cross | cross | cross | cross- on | cross- on | cross- on | cross | cross | cross | cross | cross- on | cross- on | cross |
High Tide / height (m) | 4:57PM 0.45 | 11:13PM 0.26 | 6:04AM 0.33 | 11:57AM 0.38 | 6:03PM 0.38 | 11:50PM 0.31 | 7:14AM 0.32 | 12:17PM 0.35 | 7:59PM 0.34 | 12:22AM 0.35 | 9:02AM 11:58AM 0.33 0.32 | |||||||||||||
Low Tide / height (m) | 9:02PM 0.22 | 2:20AM 0.17 | 8:35AM 0.27 | 2:58PM 0.30 | 9:35PM 0.28 | 3:23AM 0.20 | 9:20AM 0.30 | 4:01PM 0.24 | 9:46PM 0.33 | 4:38AM 0.23 | 10:49AM 0.32 | |||||||||||||
Fri 12 | Saturday 13 | Sunday 14 | Monday 15 | |||||||||||||||||||||
| Sunrise | - | - | - | - | 5:13 | - | - | - | - | - | - | - | 5:13 | - | - | - | - | - | - | - | 5:13 | - | - | - |
| Sunset | 7:13 | - | - | - | - | - | - | - | 7:13 | - | - | - | - | - | - | - | 7:14 | - | - | - | - | - | - | - |
 |  |  | |  | | | | | | | |  | | | | | | | | | | | | |
Rain (mm) | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - |
| Temp. °C | 24 | 23 | 22 | 21 | 21 | 24 | 25 | 24 | 23 | 21 | 21 | 21 | 21 | 23 | 24 | 24 | 23 | 22 | 22 | 22 | 21 | 26 | 27 | 26 |
| Feels °C (?) | 25 | 25 | 23 | 22 | 21 | 24 | 25 | 24 | 23 | 22 | 23 | 23 | 23 | 24 | 23 | 23 | 23 | 23 | 23 | 24 | 22 | 28 | 29 | 28 |
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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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