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:
San Juan surfForecast / Lanzarote / Spain
48hr Weather and Surf, issued 5 pm Sunday 14 Dec 2025 WETForecast update in hr min s Forecast update imminent
San Juan surf forecast is for near shore open water. Breaking waves will often be smaller at less exposed spots.
Today's San Juan sea temperature is
20.5° C
(Which is slightly warmer than usual)How big are the waves at San Juan today?
The current surf forecast for San Juan at 11PM is: 2.5m 12s primary swell from a North-northwest direction and 1.1m 10s secondary swell from a North-northeast direction (forecast issued at 05:00pm December 14). The wind direction is predicted to be onshore.
| Time (WET) & Date | Wave Height | Wave Period |
|---|---|---|
| Morning (14 Dec) | - | - |
| Afternoon (14 Dec) | 10ft (3.0m) | 14s |
| Evening (14 Dec) | 10ft (3.0m) | 11s |
Table - waves today at San Juan. (Swell directed towards the surf break)
Updates in hr min s Forecast update imminent
Sunday 14 | Monday 15 | Tuesday 16 | Wednesday 17 | |||||||||||||||||||||
| 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 | 6 AM | 9 AM | 12 PM | |
Rating (10 max) | ||||||||||||||||||||||||
Swell Height Map |    |    |    |    | ||||||||||||||||||||
| Wave Height (m) & direction (?) | ||||||||||||||||||||||||
| Period(s) (?) | 14 | 12 | 11 | 13 | 13 | 13 | 13 | 14 | 12 | 11 | 13 | 14 | 14 | 14 | 13 | 13 | 8 | 9 | 11 | 12 | 12 | 14 | 11 | 10 |
Wave (?)Graph  | ||||||||||||||||||||||||
 kJ (?) | 3715 | 2481 | 1992 | 1960 | 1677 | 1569 | 1198 | 1469 | 734 | 603 | 569 | 1094 | 1147 | 532 | 465 | 388 | 623 | 1119 | 1835 | 2314 | 2910 | 4960 | 2948 | 2674 |
Wind (km/h) | ||||||||||||||||||||||||
| Wind State (?) onshore cross-onshore cross-shore cross-offshore offshore glassy | cross- on | on | on | on | on | cross- on | cross- on | cross- on | cross- on | cross- on | cross- on | cross- on | cross- on | cross- on | cross- on | cross- on | cross- on | cross- on | cross- on | on | on | on | on | on |
High Tide / height (m) | 10:07PM 1.84 | 10:23AM 1.86 | 10:54PM 1.92 | 11:11AM 1.90 | 11:35PM 2.01 | 11:53AM 1.95 | ||||||||||||||||||
Low Tide / height (m) | 3:49PM 0.66 | 4:14AM 0.73 | 4:36PM 0.62 | 5:03AM 0.64 | 5:17PM 0.56 | 5:45AM 0.54 | ||||||||||||||||||
Sunday 14 | Monday 15 | Tuesday 16 | Wednesday 17 | |||||||||||||||||||||
| Sunrise | - | - | - | - | - | - | 7:39 | - | - | - | - | - | - | - | 7:39 | - | - | - | - | - | - | - | 7:41 | - |
| Sunset | 5:57 | - | - | - | - | - | - | - | 5:58 | - | - | - | - | - | - | - | 5:58 | - | - | - | - | - | - | - |
 |  | | | | | | | | | | | |  |  | | |  | | | | | | | |
Rain (mm) | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - |
| Temp. °C | 19 | 19 | 18 | 18 | 18 | 18 | 19 | 19 | 19 | 19 | 19 | 18 | 18 | 19 | 18 | 18 | 18 | 18 | 18 | 18 | 18 | 18 | 18 | 18 |
| Feels °C (?) | 14 | 15 | 15 | 14 | 14 | 14 | 15 | 15 | 14 | 16 | 17 | 16 | 15 | 13 | 11 | 10 | 10 | 10 | 9 | 10 | 11 | 10 | 10 | 10 |
- 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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