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:
Telescopes surfForecast / Mentawi Islands / Indonesia
48hr Weather and Surf, issued 6 am Thursday 11 Dec 2025 WIBForecast update in hr min s Forecast update imminent
Telescopes surf forecast is for near shore open water. Breaking waves will often be smaller at less exposed spots.
Today's Telescopes sea temperature is
29.5° C
(Which is 1.0°C warmer than normal for this time of year)How big are the waves at Telescopes today?
The current surf forecast for Telescopes at 12PM is: 0.9m 14s primary swell from a Southwest direction and 1.0m 7s secondary swell from a West direction, 0.3m 4s secondary swell from a North direction (forecast issued at 06:00am December 11). The wind direction is predicted to be cross-offshore.
| Time (WIB) & Date | Wave Height | Wave Period |
|---|---|---|
| Morning (11 Dec) | 3ft (0.9m) | 14s |
| Afternoon (11 Dec) | 3ft (0.9m) | 13s |
| Evening (11 Dec) | 3ft (0.9m) | 13s |
Table - waves today at Telescopes. (Swell directed towards the surf break)
Updates in hr min s Forecast update imminent
Thursday 11 | Friday 12 | Saturday 13 | Sun 14 | |||||||||||||||||||||
| 4 AM | 7 AM | 10 AM | 1 PM | 4 PM | 7 PM | 10 PM | 1 AM | 4 AM | 7 AM | 10 AM | 1 PM | 4 PM | 7 PM | 10 PM | 1 AM | 4 AM | 7 AM | 10 AM | 1 PM | 4 PM | 7 PM | 10 PM | 1 AM | |
Rating (10 max) | ||||||||||||||||||||||||
Swell Height Map |    |    |    |    | ||||||||||||||||||||
| Wave Height (m) & direction (?) | ||||||||||||||||||||||||
| Period(s) (?) | 14 | 14 | 14 | 14 | 13 | 13 | 13 | 13 | 13 | 13 | 13 | 13 | 12 | 12 | 14 | 14 | 14 | 14 | 13 | 13 | 12 | 13 | 13 | 12 |
Wave (?)Graph  | ||||||||||||||||||||||||
 kJ (?) | 272 | 288 | 280 | 268 | 261 | 261 | 304 | 199 | 196 | 196 | 234 | 193 | 178 | 175 | 153 | 153 | 150 | 144 | 128 | 126 | 89 | 225 | 222 | 208 |
Wind (km/h) | ||||||||||||||||||||||||
| Wind State (?) onshore cross-onshore cross-shore cross-offshore offshore glassy | on | on | glass | cross- off | cross- off | cross- off | cross | cross | cross | cross | cross- on | cross- on | cross- on | cross- on | on | cross- on | cross- on | cross | cross- off | on | on | on | cross- on | cross |
High Tide / height (m) | 11:27AM 0.79 | 11:20PM 0.94 | 12:35PM 0.82 | 12:22AM 0.83 | 1:41PM 0.87 | |||||||||||||||||||
Low Tide / height (m) | 4:49AM 0.18 | 4:34PM 0.36 | 5:35AM 0.24 | 5:46PM 0.44 | 6:23AM 0.27 | 7:18PM 0.47 | ||||||||||||||||||
Thursday 11 | Friday 12 | Saturday 13 | Sun 14 | |||||||||||||||||||||
| Sunrise | - | 6:07 | - | - | - | - | - | - | - | 6:07 | - | - | - | - | - | - | - | 6:07 | - | - | - | - | - | - |
| Sunset | - | - | - | - | 6:21 | - | - | - | - | - | - | - | 6:22 | - | - | - | - | - | - | - | 6:22 | - | - | - |
 |  |  | | |  | | | | | | | | | | | | | |  | | | | | |
Rain (mm) | 4 | 3 | 4 | 2 | 1 | 2 | 3 | 1 | 2 | 3 | 1 | 1 | 1 | 1 | 3 | 2 | 2 | 2 | 3 | 9 | 20 | 18 | 3 | 3 |
| Temp. °C | 25 | 25 | 25 | 24 | 24 | 24 | 25 | 25 | 26 | 25 | 27 | 26 | 27 | 26 | 26 | 26 | 26 | 26 | 26 | 25 | 24 | 25 | 25 | 25 |
| Feels °C (?) | 23 | 26 | 29 | 26 | 25 | 25 | 26 | 25 | 27 | 26 | 28 | 27 | 28 | 28 | 27 | 28 | 29 | 29 | 28 | 28 | 26 | 27 | 27 | 28 |
- 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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