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Belharra surfForecast / La Cote Basque / France
12 Day Weather and Surf, issued 1 am Thursday 18 Sep 2025 CEST
Best Forecast Surf Conditions for Belharra this week:
The surf forecast for Belharra over the next 12 days: The first swell (rated 1 star or higher) is forecast to arrive on Thursday (Sep 18) at 11AM. The primary swell is predicted to be 1.7m and 13s period with a secondary swell of 1.0m and 13s. The wind is predicted to be offshore as the swell arrives.
The most powerful waves expected at Belharra in the next 12 days are 4.0m 9s and forecast to arrive on Tuesday (Sep 23) at 8PM. Winds are predicted to be onshore at the time the swell arrives.
| Wave Type | Time (CEST) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | 11AM (Thu 18th Sep) | 5.5ft (1.7m) 13s |
| Best Surf | 11AM (Thu 18th Sep) | 5.5ft (1.7m) 13s |
| Most Powerful | 8PM (Tue 23rd Sep) | 13ft (4.0m) 9s |
Table - best surf conditions forecast for Belharra over the next 12 days.
Short Range Forecast Heavy rain (total 45mm), heaviest during Sat night. Warm (max 35°C on Fri afternoon, min 16°C on Thu morning). Mainly fresh winds. | Days 3-6 Weather Summary Heavy rain (total 26mm), heaviest during Sun afternoon. Very mild (max 19°C on Tue afternoon, min 14°C on Mon night). Winds increasing (calm on Sun night, fresh winds from the W by Tue afternoon). | ||||||||||||||||||||
Thursday 18 | Friday 19 | Saturday 20 | Sunday 21 | Monday 22 | Tuesday 23 | Wednesday 24 | |||||||||||||||
| AM | PM | Night | AM | PM | Night | AM | PM | Night | AM | PM | Night | AM | PM | Night | AM | PM | Night | AM | PM | Night | |
Rating (10 max) | |||||||||||||||||||||
Swell Height Map |  |  |  |  |  |  |  | ||||||||||||||
| Wave Height (m) & direction (?) | |||||||||||||||||||||
| Period(s) (?) | 13 | 12 | 11 | 10 | 10 | 10 | 9 | 9 | 9 | 8 | 8 | 10 | 12 | 11 | 11 | 10 | 9 | 8 | 7 | 7 | 6 |
Wave (?)Graph  | |||||||||||||||||||||
 kJ (?) | 932 | 759 | 443 | 277 | 267 | 157 | 90 | 61 | 46 | 158 | 254 | 639 | 1438 | 963 | 1326 | 1138 | 1553 | 654 | 193 | 142 | 53 |
Wind (km/h) | |||||||||||||||||||||
| Wind State (?) onshore cross-onshore cross-shore cross-offshore offshore glassy | off | cross- off | cross- on | cross- off | glass | cross- on | cross- off | glass | cross- on | cross | cross- on | on | on | cross | cross- off | cross | on | on | on | cross | cross |
High Tide / height (m) | 3:21PM 3.34 | 3:53AM 3.24 | 4:06PM 3.57 | 4:31AM 3.42 | 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 | ||||||||
Low Tide / height (m) | 8:55AM 0.90 | 9:30PM 0.60 | 9:42AM 0.65 | 10:12PM 0.39 | 10:21AM 0.44 | 10:47PM 0.23 | 10:56AM 0.28 | 11:19PM 0.15 | 11:29AM 0.20 | 11:50PM 0.13 | 12:01PM 0.18 | 12:20AM 0.19 | 12:33PM 0.24 | 12:50AM 0.32 | |||||||
Thursday 18 | Friday 19 | Saturday 20 | Sunday 21 | Monday 22 | Tuesday 23 | Wednesday 24 | |||||||||||||||
| Sunrise | 7:48 | - | - | 7:50 | - | - | 7:50 | - | - | 7:52 | - | - | 7:52 | - | - | 7:54 | - | - | 7:54 | - | - |
| Sunset | - | 8:12 | - | - | 8:10 | - | - | 8:08 | - | - | 8:07 | - | - | 8:05 | - | - | 8:02 | - | - | 8:00 | - |
 | |  | |  |  |  | |  |  |  |  |  | | | | |  | | | | |
Rain (mm) | - | - | - | - | - | - | - | - | 45 | 3 | 9 | 3 | 3 | 1 | - | - | - | 7 | 4 | 2 | - |
| Temp. °C | 21 | 32 | 31 | 26 | 35 | 32 | 25 | 31 | 20 | 17 | 16 | 17 | 15 | 18 | 16 | 18 | 19 | 17 | 17 | 18 | 18 |
| Feels °C (?) | 21 | 30 | 30 | 26 | 35 | 32 | 25 | 32 | 17 | 18 | 16 | 18 | 12 | 17 | 15 | 16 | 15 | 13 | 15 | 18 | 19 |
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Recent Eyeball Surf Reports for La Cote Basque
Continuing clean conditions at Belharra (light winds from the SSE at SanSebastianFuenterrabia 5 km from Belharra). 1.2m 10s swell from the NW with a 0.8m 14s groundswell from the WNW. 2 swells combining to make bigger set waves.
Actual: 42 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 Belharra 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 Belharra Surf forecast
The above surf forecast table for Belharra provides essential information for determining whether the surfing conditions will be good over the next 12 days. A general guide to surfing at Belharra can be found by selecting the local surf guide option on the grey menu. Our Belharra 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 (Belharra) 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 Belharra 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.
Belharra 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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