Weather Plage des Grandes Vallées - Detailed bulletin - Free 15-day Marine forecasts

Pornic FRALongitude : -2°7’,416 W Latitude : 47°6’,654 N Altitude : 0m

Tue

16

-

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

Wed

17

-

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

Thu

18

-

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

Fri

19

-

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

Sat

20

-

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

Sun

21

-

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

Mon

22

-

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

Tue

23

-

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

Wed

24

-

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

Thu

25

-

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

Fri

26

-

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

Sat

27

-

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

Sun

28

-

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

Mon

29

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

Tue

30

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

BULLETIN

(established in local time)

Reliability 95%

No gale warning.

Tuesday 16 september

Wind

Average winds

Gusts

10m above ground level:

Direction

Speed

Gusts

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)

20

15

10

5

0

30

20

10

0

10

5

0

20

15

10

5

0

5

0

1

0.5

0

3

0

25

20

15

10

75

70

65

60

55

50

Wed 17

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

225° SW SW
220° SW SW
210° SW SSW
215° SW SW
205° SW SSW
200° S SSW
195° S SSW
195° S SSW
195° S SSW
195° S SSW
190° S S
190° S S
195° S SSW
205° SW SSW
210° SW SSW
215° SW SW
225° SW SW
230° SW SW
240° SW WSW
245° SW WSW
250° W WSW
250° W WSW
255° W WSW
265° W W

5 9 3 6 2
5 10 3 6 2
5 10 3 6 2
6 11 3 7 2
6 11 3 7 2
6 11 3 7 2
5 10 3 6 2
6 11 3 7 2
5 10 3 6 2
6 11 3 7 2
6 12 3 7 3
7 13 4 8 3
8 15 4 9 3
9 16 4 10 3
9 17 5 11 3
9 16 4 10 3
8 15 4 9 3
8 14 4 9 3
8 14 4 9 3
7 13 4 8 3
6 11 3 7 2
5 10 3 6 2
4 8 2 5 2
3 6 2 4 2

9 16 4 10 3
8 15 4 9 3
8 15 4 9 3
9 16 4 10 3
9 17 5 11 3
9 17 5 11 3
9 17 5 11 3
9 17 5 11 3
9 16 4 10 3
9 17 5 11 3
11 20 6 12 4
11 21 6 13 4
12 23 6 14 4
14 26 7 16 4
15 27 8 17 4
15 27 8 17 4
14 26 7 16 4
13 25 7 16 4
13 25 7 16 4
13 24 7 15 4
12 22 6 14 4
10 19 5 12 3
8 15 4 9 3
6 11 3 7 -

0.5
0.5
0.5
0.5
0.5
0.5
0.5
0.5
0.4
0.4
0.4
0.4
0.4
0.4
0.4
0.4
0.4
0.4
0.4
0.4
0.4
0.4
0.4
0.4

1.1
1.1
1
1
1
1
1
0.9
0.9
0.9
0.9
0.9
0.9
0.8
0.8
0.8
0.8
0.8
0.8
0.8
0.8
0.8
0.8
0.8

0.1
0
0
0
0
0
0
0
0
0.1
0.1
0.1
0
0.1
0.1
0.1
0.1
0.1
0
0
0
0
0
0

240° SW WSW
240° SW WSW
240° SW WSW
240° SW WSW
240° SW WSW
240° SW WSW
240° SW WSW
240° SW WSW
240° SW WSW
240° SW WSW
240° SW WSW
240° SW WSW
250° W WSW
250° W WSW
250° W WSW
250° W WSW
250° W WSW
245° SW WSW
240° SW WSW
240° SW WSW
240° SW WSW
240° SW WSW
245° SW WSW
245° SW WSW

0.5
0.5
0.5
0.5
0.5
0.5
0.5
0.4
0.4
0.4
0.4
0.4
0.4
0.4
0.4
0.4
0.3
0.4
0.4
0.4
0.4
0.4
0.4
0.4

11
10
10
10
10
10
10
10
9
9
9
9
8
7
7
7
7
7
8
8
8
9
9
9

180
180
190
190
190
190
180
180
170
150
150
140
130
110
110
110
110
130
130
130
130
140
130
130

3.3
3.8
4.2
4.5
4.6
4.4
3.8
3.1
2.5
2.3
2.4
2.7
3.2
3.8
4.3
4.7
4.9
4.8
4.3
3.5
2.7
2.1
1.9
2.1

19 65
19 65
19 65
19 65
19 65
19 65
19 65
18 65
18 65
18 65
19 65
19 65
18 65
19 65
19 65
19 66
19 66
19 66
19 66
19 66
19 66
19 66
19 66
19 66

5
5
45
30
30
85
75
75
50
75
85
85
80
80
85
80
75
45
35
30
25
10
0
5

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

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

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

>20
>20
>20
>20
>20
>20
>20
>20
15
15
15
>20
>20
>20
>20
>20
>20
>20
>20
>20
>20
>20
>20
15

1024
1024
1023
1023
1023
1023
1023
1022
1022
1022
1022
1023
1023
1023
1023
1023
1023
1023
1022
1022
1022
1022
1022
1023

0
0
0
0
0
0
0
0
0
0
0
1
1
2
2
3
3
3
2
1
0
0
0
0

15 60
15 59
15 59
15 59
15 59
15 59
15 59
15 58
14 58
14 58
16 60
17 62
18 64
19 66
19 67
20 67
20 67
20 67
20 67
19 67
19 65
18 64
16 61
15 60

14 56
13 56
13 55
13 55
13 55
13 55
13 55
13 55
12 54
12 54
14 57
16 61
18 64
20 68
21 70
22 71
21 70
21 70
20 68
19 66
18 64
16 60
15 58
14 57

6 11 2 3 7
6 12 3 3 7
7 13 3 4 8
7 13 3 4 8
8 14 3 4 9
8 15 3 4 9
8 14 3 4 9
8 15 3 4 9
8 15 3 4 9
8 14 3 4 9
8 15 3 4 9
8 15 3 4 9
8 15 3 4 9
9 16 3 4 10
8 15 3 4 9
7 13 3 4 8
6 11 2 3 7
5 9 2 3 6
4 8 2 2 5
4 7 2 2 4
3 5 1 1 3
3 6 2 2 4
2 4 1 1 2
3 5 1 1 3

1.4
1.4
1.4
1.4
1.3
1.3
1.2
1.2
1.1
1.1
1.1
1
1
1
1
1
0.9
0.9
0.9
0.9
0.9
0.9
0.9
1

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

Expert opinion

A southwesterly, strong and mostly variable flow prevails over the whole area.

For Plage des Grandes Vallées :
No gale warning.

The reliability of the situation is assessed at 95%.

In the evening, good clear periods but lots of cloud, too.
No precipitation. SW wind force 2. Gusts reaching 9 knots in the evening. Smooth to slight sea. Low, fairly long swell from WSW. Excellent visibility.

Tides at Pornic

38

High tide 01h39 4.43m

Low tide 06h33 2.36m

38

High tide 14h16 4.64m

Low tide 19h31 2.19m

www.shom.fr - © SHOM 2025

Consult the tides for September

Tue

16

-

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

Wed

17

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

Thu

18

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

Fri

19

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

Sat

20

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

Sun

21

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

Mon

22

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

Tue

23

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

Wed

24

-

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

Thu

25

-

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

Fri

26

-

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

Sat

27

-

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

Sun

28

-

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

Mon

29

-

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

Tue

30

-

- 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 Plage des Grandes Vallées

BULLETIN

Wind

Waves

Weather

Temperature

Offshore

Expert opinion

Tides at Pornic