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 Saturday 13 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
22.0° C
(Which is slightly cooler than normal)How big are the waves at Guarita today?
The current surf forecast for Guarita at 12AM is: 0.9m 9s primary swell from a South-southeast direction and 0.4m 5s secondary swell from a East-northeast direction, 0.6m 5s secondary swell from a East-northeast direction (forecast issued at 08:00pm December 13). The wind direction is predicted to be cross-offshore.
| Time (-03) & Date | Wave Height | Wave Period |
|---|---|---|
| Morning (14 Dec) | 2.5ft (0.7m) | 9s |
| Afternoon (14 Dec) | 2.5ft (0.7m) | 9s |
| Evening (14 Dec) | 2ft (0.6m) | 10s |
Table - waves today at Guarita. (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 | 9 | 9 | 9 | 9 | 9 | 9 | 10 | 10 | 6 | 6 | 7 | 7 | 7 | 7 | 7 | 7 | 7 | 7 | 6 | 6 | 6 | 6 |
Wave (?)Graph  | ||||||||||||||||||||||||
 kJ (?) | 192 | 157 | 154 | 128 | 125 | 88 | 86 | 88 | 94 | 77 | 96 | 100 | 117 | 141 | 89 | 158 | 94 | 79 | 64 | 49 | 106 | 109 | 92 | 130 |
Wind (km/h) | ||||||||||||||||||||||||
| Wind State (?) onshore cross-onshore cross-shore cross-offshore offshore glassy | on | cross | cross- off | cross | cross | cross | cross- on | cross- on | cross- on | cross | cross | cross | cross | cross | cross- on | cross- on | cross | off | off | cross | cross- off | cross- off | cross | cross- on |
High Tide / height (m) | 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 | 12:41AM 0.40 | 10:12AM 0.34 | |||||||||||||||
Low Tide / height (m) | 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 | 5:01PM 0.19 | 5:55AM 0.24 | |||||||||||||||
Sat 13 | Sunday 14 | Monday 15 | Tuesday 16 | |||||||||||||||||||||
| Sunrise | - | - | - | - | 5:13 | - | - | - | - | - | - | - | 5:13 | - | - | - | - | - | - | - | 5:13 | - | - | - |
| Sunset | 7:13 | - | - | - | - | - | - | - | 7:14 | - | - | - | - | - | - | - | 7:15 | - | - | - | - | - | - | - |
 |  | | | | | | | | | |  | | |  |  | |  |  | |  | |  | | |
Rain (mm) | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | 10 | 1 | - | 1 | 2 | 1 | - |
| Temp. °C | 24 | 22 | 21 | 20 | 20 | 23 | 24 | 24 | 23 | 22 | 22 | 22 | 21 | 26 | 25 | 24 | 24 | 23 | 22 | 22 | 20 | 20 | 23 | 24 |
| Feels °C (?) | 26 | 24 | 22 | 21 | 21 | 23 | 23 | 23 | 23 | 23 | 24 | 24 | 22 | 28 | 26 | 26 | 26 | 26 | 25 | 22 | 17 | 18 | 20 | 21 |
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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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