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San Juan surfForecast / Lanzarote / Spain
12 Day Weather and Surf, issued 5 pm Saturday 20 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)Best Forecast Surf Conditions for San Juan this week:
The surf forecast for San Juan over the next 12 days: The first swell (rated 1 star or higher) is forecast to arrive on Sunday (Dec 21) at 12PM. The primary swell is predicted to be 2.5m and 15s period with a secondary swell of 0.9m and 12s. The wind is predicted to be cross-onshore as the swell arrives.
The most powerful waves expected at San Juan in the next 12 days are 3.5m 16s and forecast to arrive on Monday (Dec 22) at 9PM. Winds are predicted to be onshore at the time the swell arrives.
| Wave Type | Time (WET) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | 12PM (Sun 21st Dec) | 8ft (2.5m) 15s |
| Best Surf | 12PM (Sun 21st Dec) | 8ft (2.5m) 15s |
| Most Powerful | 9PM (Mon 22nd Dec) | 11ft (3.5m) 16s |
Table - best surf conditions forecast for San Juan over the next 12 days.
Updates in hr min s Forecast update imminent
Short Range Forecast Mostly dry. Very mild (max 18°C on Sat afternoon, min 17°C on Sat afternoon). Winds increasing (light winds from the NNW on Sun morning, fresh winds from the NNE by Mon night). | Days 3-6 Weather Summary Light rain (total 8mm), mostly falling on Thu night. Very mild (max 18°C on Tue afternoon, min 17°C on Wed night). Winds increasing (light winds from the NNW on Wed night, strong winds from the NNW by Thu night). | ||||||||||||||||||||||
Sat 20 | Sunday 21 | Monday 22 | Tuesday 23 | Wednesday 24 | Thursday 25 | Friday 26 | |||||||||||||||||
| PM | Night | AM | PM | Night | AM | PM | Night | AM | PM | Night | AM | PM | Night | AM | PM | Night | AM | PM | Night | AM | |||
Rating (10 max) | |||||||||||||||||||||||
Swell Height Map |  |  |  |  |  |  |  |  | |||||||||||||||
| Wave Height (m) & direction (?) | |||||||||||||||||||||||
| Period(s) (?) | 16 | 16 | 15 | 15 | 15 | 14 | 15 | 15 | 14 | 13 | 13 | 10 | 10 | 11 | 10 | 10 | 9 | 10 | 10 | 10 | 10 | ||
Wave (?)Graph  | |||||||||||||||||||||||
 kJ (?) | 4719 | 3652 | 2655 | 3851 | 3983 | 4904 | 5403 | 5338 | 3420 | 2283 | 1760 | 1273 | 1018 | 745 | 640 | 579 | 865 | 636 | 712 | 574 | 551 | ||
Wind (km/h) | |||||||||||||||||||||||
| Wind State (?) onshore cross-onshore cross-shore cross-offshore offshore glassy | on | cross- on | cross- on | cross- on | cross- on | on | on | on | cross- on | cross- on | cross- on | cross- on | cross- on | cross- on | cross- on | cross- on | cross | cross- on | cross- on | cross- on | cross | ||
High Tide / height (m) | 1:59AM 2.26 | 2:19PM 2.07 | 2:34AM 2.27 | 2:54PM 2.05 | 3:09AM 2.27 | 3:30PM 2.01 | 3:46AM 2.24 | 4:09PM 1.97 | 4:25AM 2.20 | 4:53PM 1.92 | 5:09AM 2.14 | 5:44PM 1.88 | 6:01AM 2.06 | ||||||||||
Low Tide / height (m) | 7:41PM 0.37 | 8:11AM 0.32 | 8:15PM 0.36 | 8:46AM 0.33 | 8:49PM 0.38 | 9:23AM 0.36 | 9:25PM 0.42 | 10:01AM 0.40 | 10:03PM 0.47 | 10:43AM 0.44 | 10:46PM 0.55 | 11:30AM 0.48 | 11:37PM 0.62 | 12:25PM 0.52 | |||||||||
Sat 20 | Sunday 21 | Monday 22 | Tuesday 23 | Wednesday 24 | Thursday 25 | Friday 26 | |||||||||||||||||
| Sunrise | - | - | 7:43 | - | - | 7:43 | - | - | 7:43 | - | - | 7:45 | - | - | 7:45 | - | - | 7:45 | - | - | 7:46 | ||
| Sunset | 6:00 | - | - | 6:00 | - | - | 6:00 | - | - | 6:00 | - | - | 6:01 | - | - | 6:01 | - | - | 6:02 | - | - | ||
 |  |  | | | | | | | | |  | |  | | |  | | | | | |||
Rain (mm) | - | - | - | - | - | - | - | - | - | - | - | 2 | 1 | - | 2 | - | 3 | - | - | 2 | 1 | ||
| Temp. °C | 18 | 17 | 18 | 18 | 18 | 18 | 18 | 18 | 18 | 18 | 18 | 18 | 18 | 18 | 18 | 18 | 18 | 18 | 18 | 17 | 17 | ||
| Feels °C (?) | 12 | 11 | 15 | 14 | 14 | 11 | 11 | 11 | 13 | 12 | 13 | 14 | 13 | 14 | 14 | 13 | 14 | 11 | 12 | 14 | 15 | ||
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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 San Juan 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.
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Information about the San Juan Surf forecast
The above surf forecast table for San Juan provides essential information for determining whether the surfing conditions will be good over the next 12 days. A general guide to surfing at San Juan can be found by selecting the local surf guide option on the grey menu. Our San Juan surf forecast is unique since it includes wave energy (power) that defines the real feel of the surf rather than just the height or the period. If you surf the same spot (San Juan) regularly then make a mental note of the wave energy from the surf forecast table each time you go. Very soon you may start to choose your surf days based on the wave energy alone combined with our forecast of favourable offshore wind conditions. Our star ratings will help here and of course you will also find the usual wave height and period predictions on our surf forecasts as well as a full break down of the swell components under our advanced users option (to reveal that, click the little Einstein character under the tide times).
Further information to help with frequently asked questions about our surf forecast for San Juan may be found under the help tab on the top menu and also by moving your mouse over the question marks on the surf forecast table itself. Please always bear in mind that the forecast is for near-shore open water and local factors at each surf break influence the actual breaking wave height, such as the beach / reef profile, water depths offshore and shelter.
San Juan is 8 km (5 miles) from Teguise. If you plan a holiday in Lanzarote, look for hotels and other accommodation in Teguise. Teguise has rooms for a wide range of budgets as well as car hire and transport links.
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