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:
Tereza surfForecast / Santa Catarina – Sul / Brazil
48hr Weather and Surf, issued 2 am Friday 12 Dec 2025 -03Forecast update in hr min s Forecast update imminent
Tereza surf forecast is for near shore open water. Breaking waves will often be smaller at less exposed spots.
Today's Tereza sea temperature is
25.2° C
(Which is 1.6°C warmer than normal for this time of year)How big are the waves at Tereza today?
The current surf forecast for Tereza at 6AM is: 1.1m 8s primary swell from a South-southeast direction and 0.6m 8s secondary swell from a West direction (forecast issued at 02:00am December 12). An open ocean swell of 1.5m 13s is not directed at the surf break. The wind direction is predicted to be cross-shore.
| Time (-03) & Date | Wave Height | Wave Period |
|---|---|---|
| Morning (12 Dec) | 4ft (1.2m) | 8s |
| Afternoon (12 Dec) | 4.5ft (1.3m) | 8s |
| Evening (12 Dec) | 4.5ft (1.3m) | 9s |
Table - waves today at Tereza. (Swell directed towards the surf break)
Updates in hr min s Forecast update imminent
Friday 12 | Saturday 13 | Sunday 14 | ||||||||||||||||||||||
| 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) (?) | 8 | 6 | 8 | 8 | 8 | 8 | 9 | 9 | 9 | 9 | 9 | 9 | 9 | 9 | 9 | 9 | 9 | 9 | 16 | 14 | 8 | 8 | 9 | 9 |
Wave (?)Graph  | ||||||||||||||||||||||||
 kJ (?) | 105 | 58 | 157 | 188 | 192 | 217 | 228 | 247 | 258 | 264 | 300 | 300 | 266 | 225 | 220 | 215 | 190 | 186 | 0 | 0 | 284 | 249 | 247 | 297 |
Wind (km/h) | ||||||||||||||||||||||||
| Wind State (?) onshore cross-onshore cross-shore cross-offshore offshore glassy | cross- on | cross- on | cross | cross | cross | cross- on | cross | cross | cross | cross | cross | cross | cross | glass | on | on | cross- on | on | on | on | on | on | cross- on | cross- on |
High Tide / height (m) | 10:00PM 0.28 | 6:15AM 0.37 | 11:38AM 0.47 | 5:43PM 0.48 | 10:45PM 0.34 | 7:29AM 0.37 | 12:00PM 0.43 | 7:18PM 0.43 | 11:19PM 0.40 | 12:02PM 0.41 | ||||||||||||||
Low Tide / height (m) | 1:58AM 0.16 | 7:55AM 0.35 | 2:35PM 0.39 | 10:00PM 0.34 | 3:00AM 0.20 | 8:29AM 0.37 | 3:34PM 0.33 | 10:16PM 0.40 | 4:06AM 0.23 | 4:30PM 0.26 | ||||||||||||||
Friday 12 | Saturday 13 | Sunday 14 | ||||||||||||||||||||||
| Sunrise | - | - | - | 6:56 | - | - | - | - | - | - | - | 6:58 | - | - | - | - | - | - | - | 6:58 | - | - | - | - |
| Sunset | - | - | - | - | - | 5:19 | - | - | - | - | - | - | - | 5:19 | - | - | - | - | - | - | - | 5:19 | - | - |
 | | |  |  | | | | | | |  | | | | | |  | | | | | | | |
Rain (mm) | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - |
| Temp. °C | 23 | 23 | 23 | 24 | 24 | 23 | 23 | 23 | 23 | 23 | 23 | 23 | 23 | 23 | 23 | 22 | 22 | 22 | 22 | 22 | 23 | 23 | 23 | 23 |
| Feels °C (?) | 21 | 21 | 21 | 22 | 23 | 22 | 22 | 23 | 22 | 22 | 22 | 23 | 25 | 25 | 24 | 23 | 22 | 22 | 21 | 21 | 23 | 23 | 22 | 21 |
- 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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