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Surf Forecasts:

Sion sur l'Ocean surfForecast / Vendee / France

information circle12 Day Weather and Surf, issued 6 am Saturday 31 Jan 2026 CET
Forecast 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
9.3° C
 (Which is 2.0°C colder than average 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 12 days: The first swell (rated 1 star or higher) is forecast to arrive on Saturday (Jan 31) at 1PM. The primary swell is predicted to be 5.0m and 16s period with a secondary swell of 4.0m and 16s. The wind is predicted to be cross-onshore as the swell arrives.

The most powerful waves expected at Sion sur l'Ocean in the next 12 days are 5.0m 16s and forecast to arrive on Saturday (Jan 31) at 7PM. Winds are predicted to be cross-onshore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 1.8m 6s period and expected on Monday (Feb 02) at 10AM.

Wave TypeTime (CET) & Date Wave Height & Period
Next good surf (1 star+) 1PM (Sat 31st Jan)16ft (5.0m) 16s
Best Surf 1PM (Sat 31st Jan)16ft (5.0m) 16s
Most Powerful 7PM (Sat 31st Jan)16ft (5.0m) 16s

Table - best surf conditions forecast for Sion sur l'Ocean over the next 12 days.

Updates in  hr  min  s Forecast update imminent 
12 DaysHourly
Print Table

Short Range Forecast Heavy rain (total 26mm), heaviest during Sun morning. Very mild (max 11°C on Sat morning, min 8°C on Sun night). Winds increasing (light winds from the SSE on Sun night, strong winds from the SSE by Mon afternoon).

Days 3-6 Weather Summary Moderate rain (total 17mm), heaviest on Thu night. Very mild (max 11°C on Tue morning, min 8°C on Thu night). Winds decreasing (fresh winds from the S on Tue night, light winds from the SSE by Wed night).

Saturday
31
Sunday
01
Monday
02
Tuesday
03
Wednesday
04
Thursday
05
Friday
06
AMPMNightAMPMNightAMPMNightAMPMNightAMPMNightAMPMNightAMPMNight
Rating
(10 max)
!
0
0
0
0
4
2
1
!
!
!
!
!
3
2
4
2
3
!
0
!
Swell
Height Map
See all maps
Wave Height (m) & direction (?)
4
WSW
4
WSW
4
WSW
3
WSW
3
WSW
2.3
WSW
1.9
WSW
1.4
WSW
3
WSW
3
WSW
3.5
WSW
3.5
WSW
3
WSW
2.3
WSW
2.1
WSW
2.2
WSW
2.3
SW
2.5
WSW
3
WSW
3.5
WSW
3.5
WSW
Period(s) (?)161615141413161511131616151413121219171716
Wave
Graph
(?)Metric surfscale
Energy kJ (?)82598533669640663091171318699412513350063405914385121671465132413724664579166715392
Wind
(km/h)
20
SW
30
WNW
25
W
35
W
25
W
15
SSE
45
SE
50
SSE
30
WSW
25
SW
30
S
25
SSW
35
SSE
30
SSE
30
SSE
15
SE
25
S
20
NNW
5
S
30
W
30
WSW
Wind State (?)
onshore
cross-onshore
cross-shore
cross-offshore
offshore
glassy
crossoncross-
on		cross-
on		cross-
on		cross-
off		offoffcrosscrosscross-
off		cross-
off		offoffcross-
off		offcross-
off		cross-
on		glasscross-
on		cross
High Tide
/ height (m)
3:56PM
4.01
4:12AM
4.36
4:40PM
4.19
4:55AM
4.56
5:20PM
4.28
5:33AM
4.65
5:55PM
4.28
6:08AM
4.60
6:27PM
4.20
6:40AM
4.45
6:56PM
4.06
7:09AM
4.22
7:23PM
3.88
Low Tide
/ height (m)
9:41PM
0.37
10:12AM
0.07
10:29PM
0.11
10:58AM
-0.13
11:13PM
-0.05
11:41AM
-0.20
11:55PM
-0.09
12:21PM
-0.15
12:35AM
-0.02
1:00PM
0.01
1:14AM
0.17
1:38PM
0.27
1:53AM
0.44
Saturday
31
Sunday
01
Monday
02
Tuesday
03
Wednesday
04
Thursday
05
Friday
06
Sunrise8:33--8:32--8:30--8:30--8:27--8:26--8:26--
Sunset-6:08--6:09--6:12--6:13--6:15--6:15--6:17-
rain showers
part cloud
rain showers
rain showers
cloud
part cloud
light rain
mod rain
rain showers
thunderstorm
thunderstorm
thunderstorm
cloud
light rain
rain showers
part cloud
rain showers
light rain
light rain
rain showers
rain showers
Rain (mm)
1-56--374225-11-24522
Temp. °C1110111111101011101111119101011118111110
Feels °C (?)645456173653234762544
  • Map Icons:
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  • Live Wave Height (m)
  • Live Wind Speed (km/h)
  • Surf Rating (10 Max)
  • Ocean Swells (m)
  • Wind Speed (km/h)
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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.

View detailed surf forecast for Sion sur l'Ocean at:
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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 12 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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