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 12 am Sunday 14 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
29.4° C
(Which is slightly warmer than usual)How big are the waves at Telescopes today?
The current surf forecast for Telescopes at 4AM is: 0.5m 12s primary swell from a South-southwest direction and 0.9m 7s secondary swell from a West direction (forecast issued at 12:00am December 14). The wind direction is predicted to be cross-onshore.
| Time (WIB) & Date | Wave Height | Wave Period |
|---|---|---|
| Morning (14 Dec) | 2.5ft (0.7m) | 12s |
| Afternoon (14 Dec) | 4.5ft (1.3m) | 8s |
| Evening (14 Dec) | 5ft (1.6m) | 9s |
Table - waves today at Telescopes. (Swell directed towards the surf break)
Updates in hr min s Forecast update imminent
Sunday 14 | Monday 15 | Tuesday 16 | ||||||||||||||||||||||
| 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 | 4 AM | 7 AM | 10 AM | 1 PM | 4 PM | 7 PM | |
Rating (10 max) | ||||||||||||||||||||||||
Swell Height Map |    |    |    |    | ||||||||||||||||||||
| Wave Height (m) & direction (?) | ||||||||||||||||||||||||
| Period(s) (?) | 13 | 13 | 7 | 12 | 12 | 7 | 9 | 9 | 9 | 9 | 8 | 8 | 8 | 8 | 14 | 14 | 13 | 13 | 18 | 18 | 18 | 18 | 17 | 16 |
Wave (?)Graph  | ||||||||||||||||||||||||
 kJ (?) | 131 | 125 | 86 | 198 | 131 | 123 | 299 | 442 | 432 | 304 | 234 | 187 | 124 | 93 | 206 | 186 | 180 | 178 | 216 | 211 | 211 | 209 | 302 | 274 |
Wind (km/h) | ||||||||||||||||||||||||
| Wind State (?) onshore cross-onshore cross-shore cross-offshore offshore glassy | cross- off | cross | cross- on | cross- on | cross- on | cross- on | cross- on | cross- on | cross- on | cross- on | cross- on | cross- on | cross | cross- on | on | on | cross- on | cross- on | cross- on | cross- on | cross | cross | cross | cross |
High Tide / height (m) | 1:32AM 0.74 | 2:39PM 0.93 | 2:41AM 0.69 | 3:29PM 0.98 | 3:43AM 0.67 | 4:14PM 1.03 | ||||||||||||||||||
Low Tide / height (m) | 7:18PM 0.47 | 7:13AM 0.29 | 9:04PM 0.44 | 8:04AM 0.30 | 10:16PM 0.37 | 8:53AM 0.28 | ||||||||||||||||||
Sunday 14 | Monday 15 | Tuesday 16 | ||||||||||||||||||||||
| Sunrise | - | - | - | 6:07 | - | - | - | - | - | - | - | 6:09 | - | - | - | - | - | - | - | 6:09 | - | - | - | - |
| Sunset | - | - | - | - | - | - | 6:22 | - | - | - | - | - | - | - | 6:22 | - | - | - | - | - | - | - | 6:23 | - |
 | |  |  |  |  | | | | | | | | | | | | |  | | |  | |  | |
Rain (mm) | 1 | 2 | 2 | - | 2 | 1 | 4 | 3 | 5 | 4 | 2 | 4 | 3 | 17 | 5 | 4 | 2 | 2 | 1 | 1 | 1 | - | - | - |
| Temp. °C | 26 | 26 | 26 | 26 | 26 | 26 | 27 | 26 | 26 | 25 | 25 | 25 | 25 | 24 | 25 | 25 | 25 | 25 | 25 | 25 | 25 | 26 | 26 | 26 |
| Feels °C (?) | 30 | 29 | 28 | 28 | 26 | 26 | 27 | 26 | 25 | 24 | 24 | 24 | 25 | 24 | 23 | 23 | 25 | 25 | 24 | 25 | 27 | 27 | 28 | 29 |
- Map Icons:
Break
Live Wave Height (m)
Live Wind Speed (km/h)
Surf Rating (10 Max)
Ocean Swells (m)- Wind Speed (km/h)
Latest Updates
Buy Less, Surf More This Black Friday
Surf-forecast is providing a free, all-access pass to our premium features and 12-day forecasts all weekend.
Quiksilver Teams Up With PrimaLoft® For World’s First Thermal Layering System for a Wetsuit.
Previously used in our snow jackets for mountain conditions, PrimaLoft® technology is making its debut in the surf industry. The aim is to bring mountain-grade warmth to the waves.
Vancouver Island’s Day Of Days With Reed Platenius
Surf-Forecast recently helped the 21-year-old Canadian pro surfer and adventurer score some cold water perfection at home.
Read more
Discover more articles and updates in the Greenroom.
FREE! Surf-Forecast.com widget for your website
The surf report / weather widget below is available to embed on third party websites free of charge and provides a summary of our Telescopes surf forecast. Simply grab the html code snippet that we provide and paste it into your own site. You can choose your preferred language and metric/imperial units for the surf forecast feed to suit users of your site. Click here to get the code.
Nearest