Weather Grande plage de Sion - Detailed bulletin - Free 15-day Marine forecasts

Saint-Hilaire-de-Riez (85270)Longitude : -1°58’,7334 W Latitude : 46°42’,834 N Altitude : 0m

Mon

20

-

- nd - km/h - bft - m/s - mph

Tue

21

-

- nd - km/h - bft - m/s - mph

Wed

22

-

- nd - km/h - bft - m/s - mph

Thu

23

-

- nd - km/h - bft - m/s - mph

Fri

24

-

- nd - km/h - bft - m/s - mph

Sat

25

-

- nd - km/h - bft - m/s - mph

Sun

26

-

- nd - km/h - bft - m/s - mph

Mon

27

-

- nd - km/h - bft - m/s - mph

Tue

28

-

- nd - km/h - bft - m/s - mph

Wed

29

-

- nd - km/h - bft - m/s - mph

Thu

30

-

- nd - km/h - bft - m/s - mph

Fri

31

-

- nd - km/h - bft - m/s - mph

Sat

01

-

- nd - km/h - bft - m/s - mph

Sun

02

-

- nd - km/h - bft - m/s - mph

Mon

03

-

- nd - km/h - bft - m/s - mph

BULLETIN

(established in local time)

Reliability 85%

Wind alert - Warning moderate gale offshore.

Monday 20 october

Wind

Average winds

Gusts

10m above ground level:

Direction

Speed

Gusts

Under storms

Waves

Total sea (m) (m)

Swell height (m) (m)

Total sea (m)

Total wave height (m)

Wind (m)

Swell direction

Swell height (m)

Swell period (s)

Wave length (m)

High tide (m)

Sea temp

Weather

Rain (mm) (mm)

Cloud cover(%)

Amount of precipitation(mm)

Type of precipitation

Precipitation risk(%)

Visibility(km)

Pressure(hPa)

UV

Temperature

Air temp

Perceived temp

Air temp

Perceived temp

Offshore

Offshore wind

Offshore sea (m)

40

30

20

10

70

60

50

40

30

20

15

10

5

50

40

30

20

10

5

0

5

0

3

0

20

15

10

5

65

60

55

50

45

Tue 21

17h
18h
19h
20h
21h
22h
23h
00h
01h
02h
03h
04h
05h
06h
07h
08h
09h
10h
11h
12h
13h
14h
15h
16h

260° W WSW
260° W W
260° W W
260° W W
260° W W
260° W W
260° W W
260° W W
255° W WSW
255° W WSW
260° W W
255° W WSW
255° W WSW
255° W WSW
260° W W
265° W W
270° W W
275° W W
270° W W
265° W W
260° W W
260° W W
260° W W
255° W WSW

20 37 10 23 5
20 37 10 23 5
22 40 11 25 6
21 38 11 24 5
21 38 11 24 5
17 32 9 20 5
18 33 9 21 5
18 33 9 21 5
16 30 8 19 5
16 29 8 18 5
16 29 8 18 5
13 24 7 15 4
13 25 7 16 4
13 25 7 16 4
12 23 6 14 4
12 22 6 14 4
12 22 6 14 4
12 22 6 14 4
12 23 6 14 4
13 24 7 15 4
13 24 7 15 4
13 25 7 16 4
14 26 7 16 4
12 23 6 14 4

35 65 18 40 8
34 63 18 39 8
33 62 17 39 8
32 60 17 37 7
32 60 17 37 7
32 59 16 37 7
29 54 15 34 7
28 52 14 32 7
27 50 14 31 7
26 48 13 30 6
26 49 14 30 6
24 44 12 27 6
21 39 11 24 6
21 38 11 24 5
20 37 10 23 5
19 36 10 22 5
19 36 10 22 5
19 36 10 22 5
19 36 10 22 5
19 36 10 22 5
19 36 10 22 5
20 37 10 23 5
21 38 11 24 5
20 37 10 23 5

- - - - -
- - - - -
- - - - -
- - - - -
- - - - -
- - - - -
>35 >70 >19 >40 >8
>35 >60 >18 >40 >8
>30 >55 >16 >35 >7
- - - - -
- - - - -
- - - - -
- - - - -
- - - - -
- - - - -
- - - - -
- - - - -
- - - - -
- - - - -
- - - - -
- - - - -
- - - - -
- - - - -
- - - - -

2.5
2.5
2.4
2.3
2.2
2.1
2.1
2.1
2
1.9
1.8
1.8
1.8
1.7
1.6
1.6
1.5
1.4
1.4
1.4
1.4
1.4
1.3
1.3

4.4
4.5
4.4
4.2
4
3.8
3.8
3.8
3.7
3.4
3.3
3.2
3.2
3.1
3
2.8
2.7
2.6
2.6
2.6
2.6
2.5
2.4
2.4

2.4
1.9
1.7
1.6
1.5
1.2
1.1
1.3
1.2
1
0.9
0.8
0.9
0.9
0.8
0.6
0.7
0.6
0.8
0.9
0.9
0.7
0.7
0.7

190° S S
210° SW SSW
215° SW SW
215° SW SSW
215° SW SW
220° SW SW
225° SW SW
220° SW SW
220° SW SW
220° SW SW
225° SW SW
225° SW SW
220° SW SW
225° SW SW
225° SW SW
230° SW SW
225° SW SW
225° SW SW
220° SW SW
220° SW SW
220° SW SW
225° SW SW
225° SW SW
225° SW SW

0.2
1.4
1.5
1.5
1.5
1.7
1.8
1.6
1.5
1.5
1.5
1.5
1.4
1.4
1.3
1.4
1.3
1.3
1.1
1.1
1.0
1.1
1.0
1.1

8
8
8
8
8
9
9
8
8
8
8
9
9
9
8
9
8
9
8
8
7
7
7
8

120
130
130
130
130
130
130
130
130
120
120
130
130
130
130
120
120
120
120
110
100
100
90
90

5.0
4.8
4.1
3.1
2.2
1.4
1.1
1.2
1.9
2.9
3.9
4.7
5.0
4.8
4.2
3.3
2.4
1.6
1.2
1.2
1.8
2.7
3.7
4.6

17 62
17 62
17 62
17 62
17 62
17 62
17 62
17 62
17 62
17 62
17 62
17 62
17 62
17 62
17 62
17 62
17 62
17 62
17 62
17 62
17 62
17 62
17 62
17 62

50
75
95
55
95
100
100
100
100
100
85
95
90
80
85
85
90
60
40
60
90
85
60
80

0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0

-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-

30
0
0
0
25
35
40
40
40
35
30
0
0
0
0
0
0
0
0
0
0
0
0
0

>20
>20
>20
>20
>20
>20
>20
>20
>20
>20
>20
>20
>20
>20
>20
>20
>20
>20
>20
>20
>20
>20
>20
>20

1000
1000
1001
1001
1001
1002
1002
1002
1002
1001
1001
1001
1000
1000
1000
1001
1001
1002
1002
1003
1003
1003
1003
1003

1
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
1
1
1
1
2
1

17 62
17 62
16 61
16 60
16 60
16 60
16 60
16 60
16 60
16 60
16 60
16 60
16 60
16 60
15 60
15 60
15 60
16 60
16 62
17 62
17 63
17 62
17 62
17 63

11 53
10 51
10 49
9 49
9 49
10 50
10 50
10 50
10 51
11 51
11 51
11 52
11 52
11 52
11 52
11 52
11 52
12 54
14 56
15 58
16 60
14 57
15 59
15 60

25 47 6 13 29
25 47 6 13 29
25 47 6 13 29
25 46 6 13 29
25 46 6 13 29
23 43 6 12 27
22 41 6 11 25
22 40 6 11 25
22 41 6 11 25
21 39 6 11 24
19 36 5 10 22
18 33 5 9 21
17 32 5 9 20
17 31 5 9 19
17 31 5 9 19
16 29 5 8 18
16 29 5 8 18
16 29 5 8 18
16 29 5 8 18
16 30 5 8 19
17 31 5 9 19
17 31 5 9 19
16 30 5 8 19
16 29 5 8 18

3.6
3.5
3.4
3.3
3.2
3.1
3
3
2.9
2.8
2.7
2.7
2.6
2.5
2.4
2.3
2.2
2.1
2
2
2
2
2
1.9

Forecasts established in local time
Last updated 1h ago | Next update in 2h
Caption

Expert opinion

Low 980 hPa centered to the South-West of Ireland moving at 20 knots to the East to be centered on the South-West of England.

For Grande plage de Sion :
Warning moderate gale offshore.

The reliability of the situation is assessed at 85%.

Cloud and long sunny periods. Light showers. In the evening, very cloudy skies becoming totally overcast.
Risk of showers in the early hours. WSW force 5 in the middle of the day becoming W force 6 in the evening. Gusts reaching 36 knots in the middle of the day. Moderate sea. Low, fairly long swell from S. Excellent visibility.

Tides at Saint-Gilles-Croix-de-Vie

82

High tide 04h40 4.92m

Low tide 10h51 1.19m

84

High tide 16h55 5.05m

Low tide 23h14 1.08m

www.shom.fr - © SHOM 2025

Consult the tides for October

Mon

20

-

- nd - km/h - bft - m/s - mph

Tue

21

-

- nd - km/h - bft - m/s - mph

Wed

22

-

- nd - km/h - bft - m/s - mph

Thu

23

-

- nd - km/h - bft - m/s - mph

Fri

24

-

- nd - km/h - bft - m/s - mph

Sat

25

-

- nd - km/h - bft - m/s - mph

Sun

26

-

- nd - km/h - bft - m/s - mph

Mon

27

-

- nd - km/h - bft - m/s - mph

Tue

28

-

- nd - km/h - bft - m/s - mph

Wed

29

-

- nd - km/h - bft - m/s - mph

Thu

30

-

- nd - km/h - bft - m/s - mph

Fri

31

-

- nd - km/h - bft - m/s - mph

Sat

01

-

- nd - km/h - bft - m/s - mph

Sun

02

-

- nd - km/h - bft - m/s - mph

Mon

03

-

- nd - km/h - bft - m/s - mph

* +33 1 77 86 86 86: short number of forecasts for France accessible from France - €2.99 per call** 0899 70 12 34: number of forecasts for France and the World accessible from France - €2.99 per call

Weather beach Grande plage de Sion

BULLETIN

Wind

Waves

Weather

Temperature

Offshore

Expert opinion

Tides at Saint-Gilles-Croix-de-Vie