Surf Forecasts:
La Tranche sur Mer surf forecast from 18 Sep 2026:
- Best quality surf: Friday 18 Sep, 5PM (local time) - 5ft (1.5m), 15s period, W swell with cross-offshore winds.
- Most powerful swell: Friday 18 Sep, 5PM (local time) - 5ft (1.5m), 15s period, W swell with 1,060 kJ wave energy.
- Next surfable swell (1★+): Friday 18 Sep, 5PM (local time) - 5ft (1.5m), 15s period with W swell.
Best Forecast Surf Conditions for La Tranche sur Mer this week:
The surf forecast for La Tranche sur Mer over the next 16 days: The first swell (rated 1 star or higher) is forecast to arrive on Friday (Sep 18) at 5PM. The primary swell is predicted to be 1.5m and 15s period with a secondary swell of 1.2m and 16s. The wind is predicted to be cross-offshore as the swell arrives.
The most powerful waves expected at La Tranche sur Mer in the next 16 days are 1.5m 15s and forecast to arrive on Friday (Sep 18) at 5PM. 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 Sunday (Sep 20) at 11PM.
| Wave Type | Time (CEST) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | 5PM (Fri 18th Sep) | 5ft (1.5m) 15s |
| Best Surf | 5PM (Fri 18th Sep) | 5ft (1.5m) 15s |
| Most Powerful | 5PM (Fri 18th Sep) | 5ft (1.5m) 15s |
Table - best surf conditions forecast for La Tranche sur Mer over the next 16 days.
Short Range ForecastMostly dry. Warm (max 26°C on Sun night, min 15°C on Fri night). Wind will be generally light. | Days 5-7 Weather SummaryMostly dry. Warm (max 30°C on Wed afternoon, min 18°C on Tue morning). Wind will be generally light. | |||||||||||||||||||
Fri 18 | Saturday 19 | Sunday 20 | Monday 21 | Tuesday 22 | Wednesday 23 | Thursday 24 | ||||||||||||||
PM | Night | AM | PM | Night | AM | PM | Night | AM | PM | Night | AM | PM | Night | AM | PM | Night | AM | PM | Night | |
Swell Height Map |  |  |  |  |  |  |  | |||||||||||||
Wave Height (m) Direction Period (s) | W 15 | W 14 | W 12 | W 12 | W 11 | W 11 | W 11 | W 11 | W 11 | W 11 | W 12 | W 12 | W 11 | W 11 | W 11 | W 16 | WSW 13 | W 12 | W 12 | W 11 |
Wave Graph  | ||||||||||||||||||||
 kJ | 1060 | 390 | 193 | 141 | 125 | 121 | 116 | 160 | 121 | 92 | 105 | 67 | 39 | 39 | 60 | 179 | 299 | 193 | 139 | 58 |
Wind (km/h) | ||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | cross-off | cross-off | glassy | cross-off | cross-off | cross-off | off | cross | cross | cross-off | cross | cross-on | cross | cross | cross | cross | cross | cross-on | cross-off | cross |
High Tide | 9:04PM3.05m | 9:28AM3.05m | 10:06PM2.74m | 1:49PM2.98m | 2:30AM2.98m | 2:48PM3.24m | 3:17AM3.25m | 3:29PM3.54m | 3:52AM3.52m | 4:01PM3.83m | 4:21AM3.79m | 4:29PM4.11m | 4:46AM4.04m | |||||||
Low Tide | 4:18PM1.32m | 4:42AM1.54m | 5:21PM1.59m | 11:19PM2.72m | 5:51AM1.72m | 6:38PM1.66m | 7:10AM1.67m | 7:56PM1.49m | 8:20AM1.42m | 8:56PM1.16m | 9:13AM1.07m | 9:41PM0.78m | 9:56AM0.70m | 10:20PM0.41m | ||||||
 |  |  | |  | | | | | | | | | | | | | | | | |
 | — | — | 7:48 | — | — | 7:48 | — | — | 7:50 | — | — | 7:50 | — | — | 7:52 | — | — | 7:54 | — | — |
 | 8:12 | — | — | 8:09 | — | — | 8:07 | — | — | 8:06 | — | — | 8:04 | — | — | 8:01 | — | — | 8:00 | — |
mm | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
Temp °C | 18 | 17 | 16 | 18 | 18 | 18 | 25 | 26 | 19 | 28 | 28 | 19 | 28 | 27 | 20 | 30 | 29 | 21 | 31 | 31 |
Feels °C | 15 | 13 | 17 | 16 | 15 | 17 | 21 | 22 | 17 | 27 | 24 | 12 | 23 | 22 | 14 | 25 | 23 | 16 | 28 | 27 |
Swell 1 Height (m) Direction Period (s) | W 15 | W 14 | W 12 | W 12 | W 11 | W 11 | W 11 | W 11 | W 11 | W 11 | W 12 | W 12 | W 11 | W 11 | W 11 | W 16 | WSW 13 | W 12 | W 12 | W 11 |
| kJ | 1060 | 390 | 193 | 141 | 125 | 121 | 116 | 160 | 121 | 92 | 105 | 67 | 39 | 39 | 60 | 179 | 299 | 193 | 139 | 58 |
Swell 2 Height (m) Direction Period (s) | — | — | — | — | — | — | — | WNW 4 | — | — | — | — | — | W 20 | WSW 17 | W 11 | — | — | — | — |
| kJ | — | — | — | — | — | — | — | 1 | — | — | — | — | — | 8 | 59 | 55 | — | — | — | — |
Swell 3 Height (m) Direction Period (s) | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
| kJ | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
Wind waves Height (m) Direction Period (s) | W 16 | — | — | — | NNW 3 | — | NW 2 | NNE 2 | ENE 3 | — | ENE 3 | ENE 3 | ENE 3 | NE 3 | ENE 3 | — | — | E 2 | — | — |
| kJ | 692 | — | — | — | 3 | — | 1 | 1 | 3 | — | 1 | 3 | 1 | 2 | 1 | — | — | 1 | — | — |
Nearest Offshore or Glassy | ||||||||||||||||||||
Distance (km) | 0 | 320 | 0 | 0 | 0 | 0 | 1 | 0 | 1 | 1 | 0 | 1 | 40 | 27 | 1 | 1 | 1 | 1 | 1 | 1 |
Best forecast wave conditions in Vendee | ||||||||||||||||||||
Best forecast wave conditions in France | ||||||||||||||||||||
Header Global | ||||||||||||||||||||
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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 16 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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