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 pm Tuesday 30 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
19.7° 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 9PM is: 1.6m 14s primary swell from a West-northwest direction and 0.7m 9s secondary swell from a West-northwest direction (forecast issued at 05:00pm December 30). The wind direction is predicted to be glassy and the swell rating is 4.
| Time (WET) & Date | Wave Height | Wave Period |
|---|---|---|
| Morning (30 Dec) | - | - |
| Afternoon (30 Dec) | 3.5ft (1.0m) | 16s |
| Evening (30 Dec) | 5ft (1.6m) | 14s |
Table - waves today at San Juan. (Swell directed towards the surf break)
Updates in hr min s Forecast update imminent
Tuesday 30 | Wednesday 31 | Thursday 01 | Friday 02 | |||||||||||||||||||||
| 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) (?) | 16 | 15 | 14 | 14 | 14 | 14 | 13 | 13 | 13 | 13 | 12 | 12 | 12 | 12 | 14 | 14 | 12 | 12 | 11 | 11 | 12 | 12 | 12 | 12 |
Wave (?)Graph  | ||||||||||||||||||||||||
 kJ (?) | 525 | 1067 | 1010 | 886 | 862 | 1033 | 711 | 837 | 690 | 587 | 440 | 419 | 269 | 222 | 389 | 756 | 838 | 1252 | 1440 | 1256 | 1259 | 1170 | 1463 | 1150 |
Wind (km/h) | ||||||||||||||||||||||||
| Wind State (?) onshore cross-onshore cross-shore cross-offshore offshore glassy | cross- off | cross- off | glass | glass | cross- off | off | cross- off | cross- off | off | off | cross- off | cross- off | cross- off | off | off | off | off | off | off | off | cross- off | off | off | off |
High Tide / height (m) | 10:13PM 2.05 | 10:41AM 2.09 | 11:13PM 2.20 | 11:42AM 2.19 | 12:08AM 2.35 | |||||||||||||||||||
Low Tide / height (m) | 3:50PM 0.47 | 4:25AM 0.49 | 4:53PM 0.38 | 5:28AM 0.32 | 5:50PM 0.28 | 6:24AM 0.16 | ||||||||||||||||||
Tuesday 30 | Wednesday 31 | Thursday 01 | Friday 02 | |||||||||||||||||||||
| Sunrise | - | - | - | - | - | - | 7:47 | - | - | - | - | - | - | - | 7:48 | - | - | - | - | - | - | - | 7:48 | - |
| Sunset | - | 6:05 | - | - | - | - | - | - | - | 6:06 | - | - | - | - | - | - | - | 6:07 | - | - | - | - | - | - |
 | |  | | | | | | | | | | |  | | |  | |  | | | | |  | |
Rain (mm) | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | 1 | 4 | 4 | 1 | - | - |
| Temp. °C | 18 | 18 | 17 | 17 | 17 | 17 | 17 | 18 | 19 | 18 | 18 | 18 | 18 | 18 | 19 | 20 | 20 | 20 | 19 | 18 | 16 | 17 | 18 | 20 |
| Feels °C (?) | 16 | 17 | 17 | 17 | 16 | 17 | 16 | 15 | 17 | 16 | 16 | 15 | 14 | 13 | 14 | 14 | 15 | 16 | 16 | 14 | 11 | 12 | 12 | 15 |
- 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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