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Surf Forecasts:
Islares surfForecast / Cantabria / Spain
16 Day Weather and Surf, issued 6 pm Sunday 22 Mar 2026 CETForecast update in hr min s Forecast update imminent
Today's Islares sea temperature is
13.3° C
(Which is slightly warmer than usual)Best Forecast Surf Conditions for Islares this week:
The surf forecast for Islares over the next 16 days: The first swell (rated 1 star or higher) is forecast to arrive on Monday (Mar 23) at 10PM. The primary swell is predicted to be 1.1m and 13s period with a secondary swell of 0.3m and 5s. The wind is predicted to be glassy as the swell arrives.
The most powerful waves expected at Islares in the next 16 days are 1.8m 13s and forecast to arrive on Wednesday (Mar 25) at 10PM. Winds are predicted to be onshore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 1.6m 8s period and expected on Sunday (Mar 29) at 2PM.
| Wave Type | Time (CET) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | 10PM (Mon 23rd Mar) | 3.5ft (1.1m) 13s |
| Best Surf | 11PM (Sun 29th Mar) | 5ft (1.5m) 14s |
| Most Powerful | 10PM (Wed 25th Mar) | 6ft (1.8m) 13s |
Table - best surf conditions forecast for Islares over the next 16 days.
Updates in hr min s Forecast update imminent
Short Range Forecast Mostly dry. Very mild (max 15°C on Tue morning, min 9°C on Sun night). Wind will be generally light. | Days 3-6 Weather Summary Light rain (total 7mm), mostly falling on Sat morning. Very mild (max 11°C on Wed afternoon, min 8°C on Fri night). Wind will be generally light. | ||||||||||||||||||||||
Sun 22 | Monday 23 | Tuesday 24 | Wednesday 25 | Thursday 26 | Friday 27 | Saturday 28 | |||||||||||||||||
| 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) (?) | 14 | 14 | 13 | 12 | 13 | 12 | 12 | 13 | 17 | 15 | 13 | 12 | 12 | 12 | 12 | 12 | 11 | 18 | 16 | 14 | 13 | ||
Wave (?)Graph  | |||||||||||||||||||||||
 kJ (?) | 515 | 595 | 408 | 320 | 484 | 359 | 341 | 192 | 419 | 974 | 1044 | 1013 | 919 | 749 | 473 | 294 | 157 | 375 | 371 | 390 | 458 | ||
Wind (km/h) | |||||||||||||||||||||||
| Wind State (?) onshore cross-onshore cross-shore cross-offshore offshore glassy | cross- on | cross- on | cross | on | cross- off | cross- off | cross- on | cross- off | cross | on | on | on | cross- on | cross- on | cross- off | cross- on | glass | cross- on | on | on | cross- on | ||
High Tide / height (m) | 6:43PM 3.74 | 7:07AM 3.65 | 7:27PM 3.53 | 7:56AM 3.33 | 8:19PM 3.26 | 8:58AM 2.99 | 9:28PM 3.00 | 10:25AM 2.73 | 11:04PM 2.88 | 12:10PM 2.71 | 12:40AM 2.99 | 1:30PM 2.89 | 1:50AM 3.23 | ||||||||||
Low Tide / height (m) | 12:51AM 0.13 | 1:13PM 0.33 | 1:38AM 0.39 | 2:01PM 0.66 | 2:36AM 0.69 | 3:02PM 0.98 | 3:52AM 0.95 | 4:26PM 1.20 | 5:31AM 1.04 | 6:04PM 1.19 | 7:01AM 0.89 | 7:23PM 0.98 | 8:04AM 0.65 | ||||||||||
Sun 22 | Monday 23 | Tuesday 24 | Wednesday 25 | Thursday 26 | Friday 27 | Saturday 28 | |||||||||||||||||
| Sunrise | - | - | 7:11 | - | - | 7:09 | - | - | 7:07 | - | - | 7:05 | - | - | 7:05 | - | - | 7:03 | - | - | 7:01 | ||
| Sunset | 7:27 | - | - | 7:28 | - | - | 7:29 | - | - | 7:30 | - | - | 7:31 | - | - | 7:32 | - | - | 7:34 | - | - | ||
 |  | | |  |  | | | |  |  | | | | | | | | | |  | |||
Rain (mm) | - | - | - | - | - | - | - | - | - | 2 | 2 | - | - | - | - | - | - | 3 | - | 3 | 12 | ||
| Temp. °C | 14 | 12 | 13 | 14 | 11 | 15 | 15 | 11 | 14 | 11 | 10 | 11 | 11 | 9 | 10 | 10 | 8 | 10 | 10 | 10 | 10 | ||
| Feels °C (?) | 11 | 10 | 10 | 12 | 10 | 12 | 12 | 10 | 9 | 7 | 5 | 6 | 7 | 5 | 6 | 6 | 5 | 5 | 4 | 5 | 4 | ||
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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 Islares 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 Islares Surf forecast
The above surf forecast table for Islares provides essential information for determining whether the surfing conditions will be good over the next 16 days. A general guide to surfing at Islares can be found by selecting the local surf guide option on the grey menu. Our Islares 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 (Islares) 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 Islares 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.
Islares is 8 km (5 miles) from Castro-Urdiales. If you plan a holiday in Spain - Cantabria, look for hotels and other accommodation in Castro-Urdiales. Castro-Urdiales has rooms for a wide range of budgets as well as car hire and transport links.
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