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Sion sur l'Ocean surfForecast / Vendee / France
16 Day Weather and Surf, issued 7 pm Friday 01 May 2026 CESTForecast update in hr min s Forecast update imminent
Sion sur l'Ocean surf forecast is for near shore open water. Breaking waves will often be smaller at less exposed spots.
Today's Sion sur l'Ocean sea temperature is
15.2° C
(Which is 2.1°C warmer than normal for this time of year)Best Forecast Surf Conditions for Sion sur l'Ocean this week:
The surf forecast for Sion sur l'Ocean over the next 16 days: The first swell (rated 1 star or higher) is forecast to arrive on Saturday (May 02) at 2AM. The primary swell is predicted to be 0.6m and 11s period with a secondary swell of 0.1m and 13s. Another secondary swell of 0.3m and 2s is also forecast. The wind is predicted to be cross-offshore as the swell arrives.
The most powerful waves expected at Sion sur l'Ocean in the next 16 days are 0.8m 9s and forecast to arrive on Sunday (May 03) at 11AM. Winds are predicted to be cross-shore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 1.2m 5s period and expected on Saturday (May 02) at 2PM.
| Wave Type | Time (CEST) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | 2AM (Sat 2nd May) | 2ft (0.6m) 11s |
| Best Surf | 2AM (Sat 2nd May) | 2ft (0.6m) 11s |
| Most Powerful | 11AM (Sun 3rd May) | 2.5ft (0.8m) 9s |
Table - best surf conditions forecast for Sion sur l'Ocean over the next 16 days.
Updates in hr min s Forecast update imminent
Short Range ForecastLight rain (total 9mm), mostly falling on Sat afternoon. Very mild (max 17°C on Fri night, min 11°C on Mon morning). Winds decreasing (fresh winds from the SSE on Sat afternoon, calm by Sun night). | Days 5-7 Weather SummaryLight rain (total 3mm), mostly falling on Tue afternoon. Very mild (max 15°C on Thu afternoon, min 11°C on Tue morning). Wind will be generally light. | ||||||||||||||||||||
Saturday 2 | Sunday 3 | Monday 4 | Tuesday 5 | Wednesday 6 | Thursday 7 | Fri 8 | |||||||||||||||
Night | AM | PM | Night | AM | PM | Night | AM | PM | Night | AM | PM | Night | AM | PM | Night | AM | PM | Night | AM | PM | |
Swell Height Map |  |  |  |  |  |  |  |  | |||||||||||||
W 11 | W 11 | WSW 10 | WSW 10 | WSW 9 | WSW 4 | W 5 | W 5 | WNW 10 | WNW 10 | WNW 9 | WNW 9 | WNW 8 | WNW 5 | W 6 | W 5 | W 5 | W 6 | WNW 6 | WNW 6 | WNW 6 | |
93 | 59 | 33 | 18 | 110 | 32 | 19 | 7 | 18 | 30 | 88 | 27 | 27 | 15 | 47 | 22 | 11 | 10 | 7 | 3 | 3 | |
Wind (km/h) | |||||||||||||||||||||
cross-off | off | cross-off | cross | cross | cross-on | on | cross | on | on | glassy | cross-on | cross-on | on | cross-on | cross-on | off | on | cross-off | off | cross-off | |
High Tide | 5:40AM4.12m | 5:50PM4.18m | 6:05AM4.06m | 6:15PM4.14m | 6:31AM3.95m | 6:42PM4.05m | 7:00AM3.80m | 7:13PM3.90m | 7:31AM3.61m | 7:47PM3.71m | 8:07AM3.40m | 8:27PM3.50m | 8:51AM3.18m | ||||||||
Low Tide | 11:38PM0.25m | 11:55AM0.29m | 00:15AM0.27m | 12:30PM0.39m | 00:51AM0.37m | 1:06PM0.54m | 1:29AM0.54m | 1:43PM0.73m | 2:08AM0.76m | 2:23PM0.95m | 2:51AM0.99m | 3:07PM1.15m | 3:39AM1.19m | 3:57PM1.33m | |||||||
 |  | |  |  |  |  | |  | | | | | | | | | | | | | |
 | — | 6:52 | — | — | 6:50 | — | — | 6:48 | — | — | 6:48 | — | — | 6:46 | — | — | 6:45 | — | — | 6:43 | — |
 | 9:15 | — | — | 9:17 | — | — | 9:19 | — | — | 9:20 | — | — | 9:22 | — | — | 9:22 | — | — | 9:23 | — | 9:25 |
1 | 2 | 2 | 3 | — | — | — | 1 | — | — | — | 1 | 2 | — | — | — | — | — | 2 | 3 | — | |
Temp °C | 17 | 13 | 15 | 15 | 14 | 14 | 14 | 13 | 14 | 14 | 13 | 14 | 14 | 12 | 13 | 13 | 12 | 15 | 16 | 14 | 17 |
13 | 8 | 10 | 14 | 12 | 10 | 11 | 12 | 13 | 11 | 12 | 10 | 9 | 10 | 9 | 8 | 10 | 13 | 13 | 10 | 13 | |
Swell 1 Height (m) Direction Period (s) | W 11 | W 11 | WSW 10 | S 4 | WNW 9 | S 4 | W 5 | W 5 | WNW 10 | WNW 10 | WNW 9 | SW 7 | WNW 8 | WNW 7 | WNW 10 | WNW 8 | W 5 | W 6 | WNW 6 | WNW 6 | SSE 4 |
 kJ | 93 | 59 | 33 | 10 | 35 | 3 | 19 | 7 | 18 | 30 | 26 | 2 | 27 | 10 | 10 | 6 | 11 | 10 | 7 | 3 | 2 |
Swell 2 Height (m) Direction Period (s) | W 13 | WNW 12 | WNW 12 | WSW 10 | W 9 | S 4 | WNW 8 | WNW 7 | WSW 8 | WSW 7 | WNW 4 | SW 7 | SW 6 | SW 5 | NW 8 | W 10 | W 10 | WNW 9 | W 8 | W 8 | WNW 6 |
| kJ | 3 | 54 | 14 | 18 | 6 | 4 | 6 | 5 | 6 | 5 | 3 | 2 | 2 | 4 | 3 | 2 | 7 | 8 | 1 | 1 | 3 |
Swell 3 Height (m) Direction Period (s) | — | — | — | WNW 11 | — | W 9 | — | WSW 8 | W 4 | — | WSW 7 | — | — | W 11 | — | W 8 | SW 8 | SW 8 | W 9 | W 8 | — |
| kJ | — | — | — | 12 | — | 6 | — | 6 | 1 | — | 5 | — | — | 2 | — | 1 | 3 | 2 | 2 | 1 | — |
Wind waves Height (m) Direction Period (s) | NE 2 | SE 4 | S 5 | W 4 | WSW 9 | WSW 4 | — | — | — | WNW 3 | WNW 9 | WNW 9 | W 4 | WNW 5 | W 6 | W 5 | — | — | — | ENE 3 | — |
| kJ | 1 | 24 | 62 | 4 | 110 | 32 | — | — | — | 4 | 88 | 27 | 21 | 15 | 47 | 22 | — | — | — | 1 | — |
Nearest Offshore or Glassy | |||||||||||||||||||||
Distance (km) | 0 | 124 | 154 | 41 | 174 | 369 | 208 | 207 | 207 | 41 | 0 | 453 | 207 | 1 | 254 | 108 | 148 | 148 | 199 | 345 | 463 |
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 Sion sur l'Ocean 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 Sion sur l'Ocean Surf forecast
The above surf forecast table for Sion sur l'Ocean provides essential information for determining whether the surfing conditions will be good over the next 16 days. A general guide to surfing at Sion sur l'Ocean can be found by selecting the local surf guide option on the grey menu. Our Sion sur l'Ocean 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 (Sion sur l'Ocean) 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 Sion sur l'Ocean 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 Sion sur l'Ocean, camping, hotels and holiday cottages in Vendee, consider staying in Challans which is 17 km (11 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 28 km (17 miles) away, La Roche-sur-Yon, Nantes Aeroport Atlantique and Coueron.
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