Using Surf-Forecast’s Historical Surf Data To Find The Most Consistent Waves On Earth
Using our statistical data for 7000 spots dating back to 2006, we can find those waves that break the most, with the best winds.
Surf Forecasts:
San Juan surfForecast / Lanzarote / Spain
48hr Weather and Surf, issued 5 am Sunday 21 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
20.1° C
(Which is normal for this time of year)How big are the waves at San Juan today?
The current surf forecast for San Juan at 11AM is: 2.4m 15s primary swell from a North-northwest direction and 0.9m 12s secondary swell from a West-northwest direction (forecast issued at 05:00am December 21). The wind direction is predicted to be cross-onshore and the swell rating is 11.
| Time (WET) & Date | Wave Height | Wave Period |
|---|---|---|
| Morning (21 Dec) | 7ft (2.2m) | 14s |
| Afternoon (21 Dec) | 8ft (2.5m) | 15s |
| Evening (21 Dec) | 10ft (3.0m) | 15s |
Table - waves today at San Juan. (Swell directed towards the surf break)
Updates in hr min s Forecast update imminent
Sunday 21 | Monday 22 | Tuesday 23 | Wed 24 | |||||||||||||||||||||
| 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 | 3 PM | 6 PM | 9 PM | 0 AM | |
Rating (10 max) | ||||||||||||||||||||||||
Swell Height Map |    |    |    |    | ||||||||||||||||||||
| Wave Height (m) & direction (?) | ||||||||||||||||||||||||
| Period(s) (?) | 16 | 15 | 14 | 15 | 15 | 15 | 15 | 15 | 15 | 14 | 14 | 14 | 14 | 15 | 16 | 15 | 15 | 14 | 14 | 14 | 14 | 13 | 13 | 13 |
Wave (?)Graph  | ||||||||||||||||||||||||
 kJ (?) | 3226 | 2394 | 2082 | 2655 | 3335 | 3851 | 4093 | 4096 | 4334 | 4346 | 4783 | 4904 | 4431 | 5403 | 5808 | 5410 | 4827 | 4296 | 3865 | 3578 | 3048 | 2318 | 1788 | 1574 |
Wind (km/h) | ||||||||||||||||||||||||
| Wind State (?) onshore cross-onshore cross-shore cross-offshore offshore glassy | cross- on | cross- on | cross- on | cross- on | cross- on | cross- on | cross- on | cross- on | on | on | on | on | on | on | on | on | on | on | on | on | cross- on | cross- on | cross- on | cross- on |
High Tide / height (m) | 2:19PM 2.07 | 2:34AM 2.27 | 2:54PM 2.05 | 3:09AM 2.27 | 3:30PM 2.01 | |||||||||||||||||||
Low Tide / height (m) | 8:11AM 0.32 | 8:15PM 0.36 | 8:46AM 0.33 | 8:49PM 0.38 | 9:23AM 0.36 | 9:25PM 0.42 | ||||||||||||||||||
Sunday 21 | Monday 22 | Tuesday 23 | Wed 24 | |||||||||||||||||||||
| Sunrise | - | - | 7:43 | - | - | - | - | - | - | - | 7:43 | - | - | - | - | - | - | - | 7:43 | - | - | - | - | - |
| Sunset | - | - | - | - | - | 6:00 | - | - | - | - | - | - | - | 6:00 | - | - | - | - | - | - | - | 6:00 | - | - |
 |  |  | |  | | | | | | | | | | | | | | | | | | | | |
Rain (mm) | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - |
| Temp. °C | 17 | 17 | 17 | 18 | 18 | 18 | 18 | 18 | 17 | 17 | 18 | 18 | 18 | 18 | 18 | 17 | 17 | 17 | 17 | 18 | 18 | 18 | 18 | 18 |
| Feels °C (?) | 12 | 12 | 13 | 15 | 14 | 13 | 14 | 14 | 12 | 11 | 11 | 11 | 12 | 10 | 11 | 11 | 11 | 11 | 11 | 12 | 13 | 13 | 13 | 14 |
- 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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