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

Mon

01

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

Tue

02

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Wed

03

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Thu

04

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Fri

05

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Sat

06

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Sun

07

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Mon

08

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Tue

09

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Wed

10

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Thu

11

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Fri

12

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Sat

13

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Sun

14

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Mon

15

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BULLETIN

(established in local time)

Reliability 90%

Wind alert - Warning fresh gale offshore.

Monday 1 december

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)

40

30

20

10

0

80

70

60

50

40

30

20

10

20

15

10

5

0

50

40

30

20

10

5

0

1.5

1

0.5

3

0

15

10

5

0

60

55

50

45

40

Tue 2

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

185° S S
185° S S
180° S S
180° S S
185° S S
190° S SSW
205° SW SSW
215° SW SW
220° SW SW
225° SW SW
240° SW WSW
250° W WSW
250° W WSW
255° W WSW
255° W WSW
255° W WSW
245° SW WSW
230° SW SW
230° SW SW
220° SW SW
215° SW SW
225° SW SW
240° SW WSW
240° SW WSW

19 35 10 22 5
21 39 11 24 6
23 43 12 27 6
23 43 12 27 6
24 44 12 27 6
24 44 12 27 6
25 47 13 29 6
25 46 13 29 6
17 32 9 20 5
16 30 8 19 5
17 31 9 19 5
16 29 8 18 5
14 26 7 16 4
13 25 7 16 4
13 25 7 16 4
12 22 6 14 4
11 20 6 12 4
9 16 4 10 3
9 16 4 10 3
10 18 5 11 3
11 20 6 12 4
12 23 6 14 4
13 24 7 15 4
13 25 7 16 4

31 57 16 35 7
32 60 17 37 7
35 64 18 40 8
35 64 18 40 8
35 65 18 40 8
36 67 19 42 8
38 70 19 43 8
38 70 19 43 8
35 65 18 40 8
28 52 14 32 7
26 48 13 30 6
26 49 14 30 6
23 42 12 26 6
23 43 12 27 6
20 37 10 23 5
18 34 9 21 5
17 32 9 20 5
16 30 8 19 5
14 26 7 16 4
16 30 8 19 5
19 36 10 22 5
21 38 11 24 5
24 45 13 28 6
22 41 11 25 6

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

2.3
2.3
2.4
2.4
2.4
2.4
2.4
2.3
2.3
2.2
2.1
2.2
2.1
2.1
2
1.9
1.8
1.8
1.7
1.7
1.6
1.6
1.7
1.7

1.1
1.1
1.1
1.2
1.2
1.1
1.1
1
0.8
0.7
0.6
0.7
0.6
0.5
0.5
0.4
0.4
0.4
0.4
0.4
0.4
0.4
0.4
0.4

235° SW SW
235° SW SW
240° SW WSW
175° S S
175° S S
175° S S
205° SW SSW
170° S S
180° S S
185° S S
250° W WSW
185° S S
185° S S
185° S S
185° S S
180° S S
180° S S
180° S S
180° S S
185° S S
190° S S
245° SW WSW
245° SW WSW
245° SW WSW

0.6
0.5
0.5
0.5
0.5
0.5
0.6
0.7
0.8
0.8
0.8
0.8
0.8
0.8
0.8
0.7
0.7
0.7
0.7
0.6
0.6
0.8
0.8
0.8

8
8
8
9
9
9
6
9
9
9
8
9
10
10
10
11
11
12
12
11
11
9
9
9

35
35
35
35
35
40
50
50
100
110
70
70
70
110
120
120
120
120
120
130
120
160
170
200

4.1
3.1
2.2
1.7
1.6
1.9
2.6
3.5
4.3
5.0
5.2
5.1
4.4
3.5
2.6
1.8
1.5
1.7
2.3
3.2
4.2
5.0
5.5
5.5

12 54
12 54
12 54
12 54
12 54
12 54
12 54
12 54
12 54
12 54
12 54
12 54
12 54
12 54
12 54
12 54
12 54
12 54
12 54
12 54
12 54
12 54
12 54
12 54

100
100
100
100
100
100
100
100
100
95
100
70
60
65
50
45
35
80
80
65
65
70
65
70

0
0
0
0
0.5
0.6
0.6
0.6
0.6
0.4
0.1
0
0
0
0
0
0
0
0
0
0.2
0.3
0
0

-
-
-
-
-
-
-
-

0
0
0
25
60
80
80
75
75
60
50
40
35
0
0
0
0
0
20
45
50
50
35
45

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

1008
1008
1007
1006
1006
1005
1005
1005
1005
1005
1005
1006
1006
1006
1006
1006
1007
1007
1007
1007
1007
1007
1006
1006

0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
1
1
1
0

12 54
12 54
12 54
12 54
12 54
12 54
13 55
12 54
12 54
12 53
12 53
11 53
11 52
11 52
11 52
11 52
11 51
11 51
11 52
12 53
12 53
12 54
12 53
12 53

7 44
6 43
5 41
5 42
5 41
5 41
5 41
5 41
6 44
6 44
6 43
6 43
7 44
7 44
6 44
7 44
7 44
7 45
9 47
10 50
10 49
10 49
8 47
9 48

26 48 6 13 30
27 50 7 14 31
28 51 7 14 32
28 52 7 14 32
29 53 7 15 33
30 55 7 15 34
30 55 7 15 34
30 55 7 15 34
24 44 6 12 27
23 42 6 12 26
23 42 6 12 26
21 38 5 11 24
21 39 6 11 24
21 38 5 11 24
18 34 5 9 21
17 31 5 9 19
17 31 5 9 19
16 29 5 8 18
17 31 5 9 19
15 28 4 8 17
17 31 5 9 19
19 36 5 10 22
17 32 5 9 20
17 31 5 9 19

2.7
2.8
2.8
2.9
3
3.1
3.2
3.2
3.1
3
3
3
2.9
2.8
2.7
2.6
2.5
2.5
2.5
2.5
2.5
2.6
2.5
2.5

Forecasts established in local time
Last updated 58min ago | Next update in 3h
Caption

Expert opinion

A westerly, very strong and variable flow prevails over the whole area.

For Plage des Grandes Vallées :
Warning fresh gale offshore.

We are 90% sure of the situation, because in this type of situation, it is difficult to define precisely when the precipitation will begin.

Very cloudy skies to overcast. No precipitation. In the evening, overcast skies.
Light rain. S wind force 6 from the middle of the day. Gusts reaching 38 knots in the evening. Slight sea. Low, fairly long swell from SW. Excellent visibility.

Tides at Pornic

58

High tide 01h22 4.95m

Low tide 07h12 1.87m

64

High tide 13h42 5.27m

Low tide 19h42 1.55m

www.shom.fr - © SHOM 2025

Consult the tides for December

Mon

01

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

Tue

02

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Wed

03

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Thu

04

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Fri

05

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Sat

06

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Sun

07

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Mon

08

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

Tue

09

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

Wed

10

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

Thu

11

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

Fri

12

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

Sat

13

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

Sun

14

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

Mon

15

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- 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