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Playa de San Juan surfForecast / Asturias / Spain
12 Day Weather and Surf, issued 7 pm Thursday 21 Aug 2025 CEST
Best Forecast Surf Conditions for Playa de San Juan this week:
The surf forecast for Playa de San Juan over the next 12 days: The first swell (rated 1 star or higher) is forecast to arrive on Friday (Aug 22) at 2AM. The primary swell is predicted to be 0.4m and 13s period with a secondary swell of 0.6m and 6s. The wind is predicted to be glassy as the swell arrives.
The most powerful waves expected at Playa de San Juan in the next 12 days are 3.0m 18s and forecast to arrive on Tuesday (Aug 26) at 2PM. Winds are predicted to be onshore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 1.2m 5s period and expected on Saturday (Aug 23) at 8PM.
| Wave Type | Time (CEST) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | 2AM (Fri 22nd Aug) | 1.5ft (0.4m) 13s |
| Best Surf | 2PM (Tue 26th Aug) | 10ft (3.0m) 18s |
| Most Powerful | 2PM (Tue 26th Aug) | 10ft (3.0m) 18s |
Table - best surf conditions forecast for Playa de San Juan over the next 12 days.
Short Range Forecast Mostly dry. Warm (max 25°C on Sat afternoon, min 14°C on Fri night). Wind will be generally light. | Days 3-6 Weather Summary Mostly dry. Warm (max 23°C on Mon afternoon, min 16°C on Mon morning). Wind will be generally light. | |||||||||||||||||||||
Friday 22 | Saturday 23 | Sunday 24 | Monday 25 | Tuesday 26 | Wednesday 27 | Thu 28 | ||||||||||||||||
| Night | AM | PM | Night | AM | PM | Night | AM | PM | Night | AM | PM | Night | AM | PM | Night | AM | PM | Night | AM | PM | ||
Rating (10 max) | ||||||||||||||||||||||
Swell Height Map |  |  |  |  |  |  |  |  | ||||||||||||||
| Wave Height (m) & direction (?) | ||||||||||||||||||||||
| Period(s) (?) | 13 | 12 | 11 | 10 | 9 | 9 | 8 | 8 | 12 | 10 | 9 | 10 | 22 | 18 | 17 | 16 | 14 | 13 | 13 | 12 | 13 | |
Wave (?)Graph  | ||||||||||||||||||||||
| Energy (?) | 94 | 132 | 125 | 98 | 46 | 26 | 28 | 49 | 39 | 73 | 90 | 157 | 849 | 4676 | 4948 | 3802 | 2906 | 2281 | 2522 | 2444 | 2356 | |
Wind (km/h) | ||||||||||||||||||||||
| Wind State (?) onshore cross-onshore cross-shore cross-offshore offshore glassy | glass | cross- off | cross | off | cross- off | cross- off | off | cross- on | on | cross | cross- on | on | cross- on | glass | cross- on | cross- on | cross- on | on | cross- off | cross | cross- off | |
High Tide / height (m) | 4:40AM 3.52 | 4:55PM 3.91 | 5:19AM 3.65 | 5:33PM 4.02 | 5:54AM 3.71 | 6:08PM 4.05 | 6:27AM 3.72 | 6:41PM 4.00 | 6:59AM 3.67 | 7:13PM 3.88 | 7:29AM 3.58 | 7:44PM 3.71 | 8:01AM 3.44 | |||||||||
Low Tide / height (m) | 10:32PM 0.71 | 10:41AM 0.78 | 11:13PM 0.57 | 11:20AM 0.65 | 11:50PM 0.50 | 11:55AM 0.58 | 12:23AM 0.50 | 12:29PM 0.58 | 12:55AM 0.56 | 1:01PM 0.65 | 1:26AM 0.69 | 1:33PM 0.77 | 1:56AM 0.85 | 2:05PM 0.94 | ||||||||
Friday 22 | Saturday 23 | Sunday 24 | Monday 25 | Tuesday 26 | Wednesday 27 | Thu 28 | ||||||||||||||||
| Sunrise | - | 7:35 | - | - | 7:35 | - | - | 7:37 | - | - | 7:37 | - | - | 7:39 | - | - | 7:41 | - | - | 7:41 | - | |
| Sunset | - | - | 9:16 | - | - | 9:15 | - | - | 9:13 | - | - | 9:12 | - | - | 9:09 | - | - | 9:07 | - | - | 9:07 | |
 |  | |  | | | | | | | | | | | |  | | |  |  | | ||
Rain (mm) | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | |
| Temp. °C | 21 | 19 | 22 | 20 | 20 | 25 | 23 | 21 | 22 | 21 | 21 | 23 | 21 | 21 | 23 | 19 | 19 | 21 | 20 | 20 | 21 | |
| Feels °C (?) | 21 | 19 | 21 | 19 | 19 | 23 | 22 | 21 | 21 | 22 | 21 | 23 | 22 | 22 | 22 | 20 | 19 | 21 | 20 | 19 | 21 | |
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Recent Eyeball Surf Reports for Asturias
Continuing clean conditions at Playa de San Juan (calm at Asturias/Aviles 9 km from Playa de San Juan). 0.7m 5s windswell from the NNE with a 0.5m 14s groundswell from the WNW and a 0.3m 5s windswell, also from the WNW. 3 swells combining to make bigger set waves.
1 h 22 min ago
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 Playa de 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.
Information about the Playa de San Juan Surf forecast
The above surf forecast table for Playa de 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 Playa de San Juan can be found by selecting the local surf guide option on the grey menu. Our Playa de 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 (Playa de 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 Playa de 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.
Playa de San Juan is 5 km (3 miles) from Aviles. If you plan a holiday in Asturias, look for hotels and other accommodation in Aviles. Aviles has rooms for a wide range of budgets as well as car hire and transport links.
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