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:
Tiki surfForecast / South / Uruguay
48hr Weather and Surf, issued 8 am Tuesday 16 Dec 2025 -03Forecast update in hr min s Forecast update imminent
Tiki surf forecast is for near shore open water. Breaking waves will often be smaller at less exposed spots.
Today's Tiki sea temperature is
22.0° C
(Which is 2.1°C warmer than normal for this time of year)How big are the waves at Tiki today?
The current surf forecast for Tiki at 10AM is: 2.0m 6s primary swell from a South-southwest direction and 0.3m 10s secondary swell from a Southeast direction (forecast issued at 08:00am December 16). An open ocean swell of 0.3m 7s is not directed at the surf break. The wind direction is predicted to be cross-shore.
| Time (-03) & Date | Wave Height | Wave Period |
|---|---|---|
| Morning (16 Dec) | 6.5ft (2.0m) | 6s |
| Afternoon (16 Dec) | 6ft (1.9m) | 7s |
| Evening (16 Dec) | 5ft (1.6m) | 7s |
Table - waves today at Tiki. (Swell directed towards the surf break)
Updates in hr min s Forecast update imminent
Tuesday 16 | Wednesday 17 | Thursday 18 | Fri 19 | |||||||||||||||||||||
| 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 | 0 AM | 3 AM | |
Rating (10 max) | ||||||||||||||||||||||||
Swell Height Map |    |    |    |    | ||||||||||||||||||||
| Wave Height (m) & direction (?) | ||||||||||||||||||||||||
| Period(s) (?) | 7 | 6 | 7 | 7 | 7 | 7 | 7 | 7 | 7 | 7 | 7 | 10 | 10 | 10 | 10 | 9 | 9 | 9 | 9 | 9 | 6 | 5 | 3 | 4 |
Wave (?)Graph  | ||||||||||||||||||||||||
 kJ (?) | 214 | 312 | 356 | 348 | 261 | 276 | 131 | 110 | 117 | 81 | 64 | 164 | 92 | 65 | 45 | 27 | 14 | 14 | 7 | 6 | 25 | 9 | 7 | 25 |
Wind (km/h) | ||||||||||||||||||||||||
| Wind State (?) onshore cross-onshore cross-shore cross-offshore offshore glassy | cross | cross | cross | cross- on | cross- on | on | glass | glass | cross- off | off | cross- on | cross- on | cross | cross | off | off | off | off | cross- off | cross | on | cross- off | off | glass |
High Tide / height (m) | 5:07AM 0.30 | 6:28PM 0.21 | 5:48AM 0.31 | 7:03PM 0.21 | 12:19AM 0.18 | 6:26AM 0.33 | 7:37PM 0.20 | |||||||||||||||||
Low Tide / height (m) | 1:14PM 0.05 | 12:45AM 0.18 | 2:00PM 0.04 | 10:15PM 0.18 | 1:06AM 0.18 | 2:43PM 0.04 | 10:36PM 0.17 | |||||||||||||||||
Tuesday 16 | Wednesday 17 | Thursday 18 | Fri 19 | |||||||||||||||||||||
| Sunrise | 5:18 | - | - | - | - | - | - | - | 5:20 | - | - | - | - | - | - | - | 5:20 | - | - | - | - | - | - | - |
| Sunset | - | - | - | - | 7:49 | - | - | - | - | - | - | - | 7:50 | - | - | - | - | - | - | - | 7:50 | - | - | - |
 | | |  | |  | | | | | | | |  | | | | | | | | | | | |
Rain (mm) | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - |
| Temp. °C | 18 | 18 | 18 | 18 | 17 | 16 | 15 | 14 | 13 | 18 | 23 | 23 | 22 | 19 | 21 | 21 | 20 | 26 | 31 | 29 | 29 | 25 | 25 | 23 |
| Feels °C (?) | 11 | 8 | 9 | 9 | 12 | 13 | 14 | 13 | 10 | 14 | 21 | 19 | 17 | 15 | 17 | 16 | 15 | 19 | 26 | 25 | 28 | 23 | 23 | 24 |
- 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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