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Vanthrax surfForecast / La Cote Basque / France
12 Day Weather and Surf, issued 7 pm Thursday 18 Sep 2025 CEST
Best Forecast Surf Conditions for Vanthrax this week:
The surf forecast for Vanthrax over the next 12 days: The first swell (rated 1 star or higher) is forecast to arrive on Thursday (Sep 18) at 11PM. The primary swell is predicted to be 1.5m and 12s period. The wind is predicted to be cross-offshore as the swell arrives.
The most powerful waves expected at Vanthrax in the next 12 days are 1.5m 12s and forecast to arrive on Thursday (Sep 18) at 11PM. Winds are predicted to be cross-offshore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 0.6m 4s period and expected on Saturday (Sep 20) at 5PM.
| Wave Type | Time (CEST) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | 11PM (Thu 18th Sep) | 5ft (1.5m) 12s |
| Best Surf | 11PM (Thu 18th Sep) | 5ft (1.5m) 12s |
| Most Powerful | 11PM (Thu 18th Sep) | 5ft (1.5m) 12s |
Table - best surf conditions forecast for Vanthrax over the next 12 days.
Short Range Forecast Heavy rain (total 28mm), heaviest during Sat night. Warm (max 34°C on Fri afternoon, min 15°C on Sun morning). Wind will be generally light. | Days 3-6 Weather Summary Heavy rain (total 29mm), heaviest during Mon night. Very mild (max 17°C on Mon afternoon, min 11°C on Wed morning). Winds decreasing (fresh winds from the W on Mon afternoon, calm by Tue night). | |||||||||||||||||||||
Friday 19 | Saturday 20 | Sunday 21 | Monday 22 | Tuesday 23 | Wednesday 24 | Thu 25 | ||||||||||||||||
| 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) (?) | 11 | 10 | 10 | 10 | 10 | 9 | 8 | 8 | 8 | 8 | 9 | 10 | 9 | 8 | 7 | 7 | 6 | 6 | 6 | 6 | 10 | |
Wave (?)Graph  | ||||||||||||||||||||||
 kJ (?) | 451 | 272 | 267 | 194 | 129 | 61 | 78 | 235 | 196 | 175 | 519 | 511 | 275 | 247 | 208 | 102 | 60 | 43 | 46 | 20 | 19 | |
Wind (km/h) | ||||||||||||||||||||||
| Wind State (?) onshore cross-onshore cross-shore cross-offshore offshore glassy | off | cross | glass | cross- off | cross | cross- off | cross- off | off | cross- off | off | cross- off | cross- off | cross- off | off | cross- off | on | on | cross | on | on | cross- on | |
High Tide / height (m) | 3:53AM 3.24 | 4:06PM 3.57 | 4:31AM 3.43 | 4:44PM 3.72 | 5:05AM 3.56 | 5:17PM 3.81 | 5:36AM 3.64 | 5:48PM 3.82 | 6:04AM 3.66 | 6:17PM 3.77 | 6:32AM 3.63 | 6:46PM 3.65 | 6:59AM 3.54 | 7:14PM 3.47 | ||||||||
Low Tide / height (m) | 9:31PM 0.60 | 9:42AM 0.65 | 10:12PM 0.39 | 10:21AM 0.44 | 10:47PM 0.23 | 10:56AM 0.28 | 11:19PM 0.14 | 11:29AM 0.20 | 11:50PM 0.13 | 12:01PM 0.18 | 12:20AM 0.19 | 12:33PM 0.24 | 12:50AM 0.32 | 1:05PM 0.37 | ||||||||
Friday 19 | Saturday 20 | Sunday 21 | Monday 22 | Tuesday 23 | Wednesday 24 | Thu 25 | ||||||||||||||||
| Sunrise | - | 7:50 | - | - | 7:50 | - | - | 7:52 | - | - | 7:52 | - | - | 7:54 | - | - | 7:54 | - | - | 7:56 | - | |
| Sunset | - | - | 8:10 | - | - | 8:08 | - | - | 8:07 | - | - | 8:05 | - | - | 8:02 | - | - | 8:00 | - | - | 8:00 | |
 | | |  |  |  |  |  | |  | | |  |  | | | | |  | | | ||
Rain (mm) | - | - | - | 2 | - | 3 | 14 | 7 | 2 | 3 | - | 1 | 9 | 6 | 4 | 6 | - | - | - | - | - | |
| Temp. °C | 31 | 26 | 34 | 31 | 24 | 26 | 19 | 16 | 17 | 15 | 16 | 17 | 16 | 15 | 16 | 16 | 13 | 16 | 15 | 12 | 17 | |
| Feels °C (?) | 30 | 27 | 34 | 30 | 24 | 26 | 20 | 13 | 13 | 11 | 14 | 13 | 11 | 12 | 14 | 13 | 11 | 13 | 14 | 10 | 14 | |
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Surf Rating (10 Max)
Ocean Swells (m)- Wind Speed (km/h)
Recent Eyeball Surf Reports for La Cote Basque
Recent cross-shore wind 4 km from Vanthrax has fallen light (light winds from the N at SanSebastianFuenterrabia). Waves should be turning clean at Vanthrax. 1.4m 12s groundswell from the WNW to make surfable waves.
Actual: 39 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 Vanthrax 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 Vanthrax Surf forecast
The above surf forecast table for Vanthrax provides essential information for determining whether the surfing conditions will be good over the next 12 days. A general guide to surfing at Vanthrax can be found by selecting the local surf guide option on the grey menu. Our Vanthrax 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 (Vanthrax) 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 Vanthrax 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.
Vanthrax is 4 km (2 miles) from the city of Fuenterrabia. If you plan a holiday in La Cote Basque, look for hotels and other accommodation in Fuenterrabia. Fuenterrabia has rooms for a wide range of budgets as well as car hire and transport links.
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