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 2 am Monday 15 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
22.3° C
(Which is slightly cooler than normal)How big are the waves at Guarita today?
The current surf forecast for Guarita at 8AM is: 1.0m 7s primary swell from a East-northeast direction and 0.8m 7s secondary swell from a East direction, 0.6m 10s secondary swell from a Southeast direction (forecast issued at 02:00am December 15). The wind direction is predicted to be cross-shore.
| Time (-03) & Date | Wave Height | Wave Period |
|---|---|---|
| Morning (15 Dec) | 3.5ft (1.0m) | 7s |
| Afternoon (15 Dec) | 3.5ft (1.1m) | 7s |
| Evening (15 Dec) | 3ft (0.9m) | 7s |
Table - waves today at Guarita. (Swell directed towards the surf break)
Updates in hr min s Forecast update imminent
Monday 15 | Tuesday 16 | Wednesday 17 | ||||||||||||||||||||||
| 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 | 6 PM | 9 PM | |
Rating (10 max) | ||||||||||||||||||||||||
Swell Height Map |    |    |    | |||||||||||||||||||||
| Wave Height (m) & direction (?) | ||||||||||||||||||||||||
| Period(s) (?) | 10 | 7 | 10 | 7 | 7 | 7 | 7 | 7 | 7 | 7 | 7 | 6 | 7 | 7 | 7 | 7 | 7 | 8 | 8 | 9 | 9 | 9 | 10 | 10 |
Wave (?)Graph  | ||||||||||||||||||||||||
 kJ (?) | 80 | 105 | 82 | 99 | 74 | 132 | 81 | 82 | 77 | 59 | 45 | 141 | 139 | 203 | 176 | 180 | 250 | 294 | 270 | 363 | 318 | 235 | 320 | 288 |
Wind (km/h) | ||||||||||||||||||||||||
| Wind State (?) onshore cross-onshore cross-shore cross-offshore offshore glassy | cross- off | cross- off | cross- off | cross | cross- on | cross- on | cross | cross- off | glass | cross- off | cross | cross- off | cross | cross- on | cross- on | cross | cross- off | cross | cross- off | cross | cross- on | on | cross- on | cross |
High Tide / height (m) | 12:22AM 0.35 | 9:02AM 11:58AM 0.33 0.32 | 12:41AM 0.40 | 10:12AM 0.34 | 12:34AM 0.44 | 10:50AM 0.36 | ||||||||||||||||||
Low Tide / height (m) | 4:38AM 0.23 | 10:49AM 0.32 | 5:01PM 0.19 | 5:55AM 0.24 | 5:52PM 0.14 | 6:57AM 0.24 | 6:35PM 0.09 | |||||||||||||||||
Monday 15 | Tuesday 16 | Wednesday 17 | ||||||||||||||||||||||
| Sunrise | - | - | 5:13 | - | - | - | - | - | - | - | 5:13 | - | - | - | - | - | - | - | 5:13 | - | - | - | - | - |
| Sunset | - | - | - | - | - | - | 7:15 | - | - | - | - | - | - | - | 7:15 | - | - | - | - | - | - | - | 7:15 | - |
 |  |  | |  | |  |  | | |  |  | | | | | | | | | | | | | |
Rain (mm) | - | - | - | - | - | - | - | 6 | - | - | 2 | 1 | 1 | - | - | - | - | - | - | - | - | - | - | - |
| Temp. °C | 21 | 21 | 21 | 26 | 25 | 25 | 24 | 23 | 22 | 21 | 21 | 20 | 23 | 23 | 22 | 20 | 19 | 18 | 18 | 21 | 21 | 21 | 20 | 18 |
| Feels °C (?) | 22 | 22 | 22 | 28 | 25 | 26 | 26 | 25 | 25 | 22 | 19 | 18 | 20 | 19 | 20 | 18 | 18 | 17 | 17 | 20 | 19 | 18 | 18 | 15 |
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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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