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La Tranche sur Mer surfForecast / Vendee / France
12 Day Weather and Surf, issued 7 am Thursday 18 Sep 2025 CEST
Best Forecast Surf Conditions for La Tranche sur Mer this week:
The surf forecast for La Tranche sur Mer over the next 12 days: The first swell (rated 1 star or higher) is forecast to arrive on Thursday (Sep 18) at 2PM. The primary swell is predicted to be 1.2m and 12s period. The wind is predicted to be onshore as the swell arrives.
The most powerful waves expected at La Tranche sur Mer in the next 12 days are 1.9m 9s and forecast to arrive on Sunday (Sep 21) at 5AM. Winds are predicted to be cross-offshore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 1.3m 5s period and expected on Saturday (Sep 20) at 11PM.
| Wave Type | Time (CEST) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | 2PM (Thu 18th Sep) | 4ft (1.2m) 12s |
| Best Surf | 2PM (Thu 18th Sep) | 4ft (1.2m) 12s |
| Most Powerful | 5AM (Sun 21st Sep) | 6ft (1.9m) 9s |
Table - best surf conditions forecast for La Tranche sur Mer over the next 12 days.
Short Range Forecast Some drizzle, heaviest during Sat morning. Warm (max 26°C on Thu night, min 15°C on Thu morning). Winds increasing (calm on Thu afternoon, fresh winds from the SSE by Fri night). | Days 3-6 Weather Summary Moderate rain (total 12mm), heaviest on Sun night. Very mild (max 19°C on Tue afternoon, min 13°C on Tue morning). Wind will be generally light. | ||||||||||||||||||||
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 | 10 | 9 | 8 | 9 | 8 | 8 | 8 | 8 | 8 | 7 | 7 | 14 | 12 | 12 | 11 |
Wave (?)Graph  | |||||||||||||||||||||
 kJ (?) | 556 | 418 | 247 | 141 | 130 | 125 | 90 | 133 | 302 | 289 | 144 | 61 | 69 | 47 | 19 | 5 | 1 | 4 | 15 | 29 | 40 |
Wind (km/h) | |||||||||||||||||||||
| Wind State (?) onshore cross-onshore cross-shore cross-offshore offshore glassy | cross- on | glass | cross- on | on | cross- on | glass | cross- on | cross- off | cross- off | cross | cross | cross- off | cross- off | cross- off | glass | cross | off | cross- off | cross | cross- off | cross |
High Tide / height (m) | 3:57PM 4.04 | 4:25AM 3.94 | 4:38PM 4.27 | 5:01AM 4.12 | 5:11PM 4.41 | 5:31AM 4.23 | 5:39PM 4.47 | 5:55AM 4.28 | 6:02PM 4.46 | 6:13AM 4.28 | 6:20PM 4.39 | 6:29AM 4.25 | 6:38PM 4.28 | ||||||||
Low Tide / height (m) | 8:50AM 1.02 | 9:27PM 0.70 | 9:44AM 0.69 | 10:14PM 0.40 | 10:28AM 0.39 | 10:54PM 0.16 | 11:07AM 0.17 | 11:30PM 0.01 | 11:44AM 0.03 | 12:05AM -0.04 | 12:19PM 0.00 | 12:39AM 0.02 | 12:54PM 0.08 | 1:12AM 0.19 | |||||||
Thursday 18 | Friday 19 | Saturday 20 | Sunday 21 | Monday 22 | Tuesday 23 | Wednesday 24 | |||||||||||||||
| Sunrise | 7:46 | - | - | 7:48 | - | - | 7:48 | - | - | 7:50 | - | - | 7:50 | - | - | 7:52 | - | - | 7:54 | - | - |
| Sunset | - | 8:12 | - | - | 8:09 | - | - | 8:07 | - | - | 8:06 | - | - | 8:04 | - | - | 8:01 | - | - | 8:00 | - |
 | |  | |  |  |  | | |  | |  |  | | | | | | | | | |
Rain (mm) | - | - | - | - | - | - | 1 | - | - | - | 1 | 5 | 3 | 1 | 2 | - | - | - | - | - | - |
| Temp. °C | 16 | 24 | 26 | 22 | 24 | 25 | 21 | 21 | 19 | 17 | 17 | 16 | 15 | 17 | 16 | 14 | 19 | 19 | 13 | 19 | 19 |
| Feels °C (?) | 15 | 22 | 24 | 17 | 21 | 25 | 21 | 19 | 15 | 15 | 13 | 13 | 10 | 12 | 12 | 11 | 16 | 14 | 8 | 15 | 14 |
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Recent Eyeball Surf Reports for Vendee
Still cross-shore at La Tranche sur Mer (light winds from the ENE at Ile de Ré (PSL LOIX) 13 km from La Tranche sur Mer). A 1.4m groundswell from the W is too big for here
1 h 22 min ago
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The surf report / weather widget below is available to embed on third party websites free of charge and provides a summary of our La Tranche sur Mer 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 La Tranche sur Mer Surf forecast
The above surf forecast table for La Tranche sur Mer provides essential information for determining whether the surfing conditions will be good over the next 12 days. A general guide to surfing at La Tranche sur Mer can be found by selecting the local surf guide option on the grey menu. Our La Tranche sur Mer 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 (La Tranche sur Mer) 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 La Tranche sur Mer 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.
Are you planning a holiday in Vendee? If you are looking for accommodation near La Tranche sur Mer, camping, hotels and holiday cottages in Vendee, consider staying in La Pallice which is 29 km (18 miles) away. Other places in and around Vendee where you can find information about places to rent, and car hire include Les Sables-d'Olonne which is 30 km (19 miles) away, La Rochelle, La Roche-sur-Yon and Marans.
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