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:
Mataval Bay surfForecast / Tahiti / French Polynesia
48hr Weather and Surf, issued 1 pm Tuesday 16 Dec 2025 -10Forecast update in hr min s Forecast update imminent
Mataval Bay surf forecast is for near shore open water. Breaking waves will often be smaller at less exposed spots.
Today's Mataval Bay sea temperature is
28.1° C
(Which is normal for this time of year)How big are the waves at Mataval Bay today?
The current surf forecast for Mataval Bay at 3PM is: 0.5m 12s primary swell from a North-northwest direction and 1.1m 5s secondary swell from a North-northwest direction (forecast issued at 01:00pm December 16). An open ocean swell of 0.7m 8s is not directed at the surf break. The wind direction is predicted to be onshore.
| Time (-10) & Date | Wave Height | Wave Period |
|---|---|---|
| Morning (16 Dec) | 1.5ft (0.5m) | 12s |
| Afternoon (16 Dec) | 1.5ft (0.5m) | 12s |
| Evening (16 Dec) | 4.5ft (1.3m) | 6s |
Table - waves today at Mataval Bay. (Swell directed towards the surf break)
Updates in hr min s Forecast update imminent
Tuesday 16 | Wednesday 17 | Thursday 18 | Friday 19 | |||||||||||||||||||||
| 11 AM | 2 PM | 5 PM | 8 PM | 11 PM | 2 AM | 5 AM | 8 AM | 11 AM | 2 PM | 5 PM | 8 PM | 11 PM | 2 AM | 5 AM | 8 AM | 11 AM | 2 PM | 5 PM | 8 PM | 11 PM | 2 AM | 5 AM | 8 AM | |
Rating (10 max) | ||||||||||||||||||||||||
Swell Height Map |    |    |    |    | ||||||||||||||||||||
| Wave Height (m) & direction (?) | ||||||||||||||||||||||||
| Period(s) (?) | 12 | 12 | 5 | 6 | 6 | 6 | 6 | 6 | 6 | 7 | 7 | 6 | 6 | 6 | 6 | 15 | 7 | 15 | 15 | 14 | 14 | 14 | 14 | 14 |
Wave (?)Graph  | ||||||||||||||||||||||||
 kJ (?) | 83 | 82 | 84 | 97 | 95 | 95 | 92 | 92 | 87 | 148 | 160 | 96 | 116 | 111 | 115 | 153 | 163 | 146 | 142 | 214 | 206 | 194 | 189 | 186 |
Wind (km/h) | ||||||||||||||||||||||||
| Wind State (?) onshore cross-onshore cross-shore cross-offshore offshore glassy | on | on | on | on | on | on | cross- on | on | on | on | on | on | cross- on | on | on | on | on | on | on | on | on | on | on | on |
High Tide / height (m) | 11:28AM 0.40 | 11:31PM 0.38 | 11:54AM 0.40 | 12:01AM 0.39 | 12:18PM 0.40 | 12:29AM 0.40 | ||||||||||||||||||
Low Tide / height (m) | 5:39PM 0.21 | 5:33AM 0.21 | 6:06PM 0.20 | 6:01AM 0.21 | 6:30PM 0.20 | 6:29AM 0.20 | ||||||||||||||||||
Tuesday 16 | Wednesday 17 | Thursday 18 | Friday 19 | |||||||||||||||||||||
| Sunrise | - | - | - | - | - | - | - | 5:18 | - | - | - | - | - | - | - | 5:18 | - | - | - | - | - | - | - | 5:18 |
| Sunset | - | - | 6:28 | - | - | - | - | - | - | - | 6:29 | - | - | - | - | - | - | - | 6:29 | - | - | - | - | - |
 |  | |  | | | | | | | |  | |  | | | | |  | | | | | | |
Rain (mm) | - | 1 | 1 | 2 | 1 | 1 | 1 | 2 | 2 | 2 | 3 | 4 | 1 | - | 1 | 1 | - | - | - | - | - | - | 1 | 1 |
| Temp. °C | 27 | 27 | 27 | 27 | 27 | 27 | 26 | 26 | 26 | 26 | 25 | 24 | 26 | 27 | 26 | 27 | 27 | 27 | 27 | 27 | 27 | 27 | 27 | 26 |
| Feels °C (?) | 27 | 28 | 27 | 26 | 26 | 25 | 25 | 26 | 26 | 26 | 24 | 26 | 28 | 26 | 26 | 26 | 27 | 27 | 28 | 28 | 28 | 29 | 29 | 29 |
- Map Icons:
Break
Live Wave Height (m)
Live Wind Speed (km/h)
Surf Rating (10 Max)
Ocean Swells (m)- Wind Speed (km/h)
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