Weather Plage de Porcé - Detailed bulletin - Free 15-day Marine forecasts

Saint-Nazaire (44600)Longitude : -2°15’,1836 W Latitude : 47°15’,186 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

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

Mon

03

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

BULLETIN

(established in local time)

Reliability 80%

Wind alert - Warning fresh 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)

50

40

30

20

10

90

80

70

60

50

40

30

20

25

20

15

10

5

60

50

40

30

20

10

5

0

5

0

3

0

20

15

10

5

65

60

55

50

45

Tue 21

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

230° SW SW
235° SW SW
230° SW SW
230° SW SW
230° SW SW
235° SW SW
230° SW SW
235° SW SW
240° SW WSW
245° SW WSW
250° W WSW
255° W WSW
255° W WSW
260° W WSW
260° W W
265° W W
265° W W
260° W W
265° W W
265° W W
260° W WSW
255° W WSW
255° W WSW
255° W WSW

21 39 11 24 6
20 37 10 23 5
22 40 11 25 6
21 39 11 24 6
23 43 12 27 6
25 46 13 29 6
25 47 13 29 6
26 49 14 30 6
25 47 13 29 6
29 53 15 33 7
27 50 14 31 7
28 51 14 32 7
27 50 14 31 7
25 47 13 29 6
25 46 13 29 6
23 43 12 27 6
22 40 11 25 6
21 38 11 24 5
18 34 9 21 5
18 33 9 21 5
16 30 8 19 5
15 28 8 17 4
15 27 8 17 4
15 28 8 17 4

31 57 16 35 7
31 57 16 35 7
32 60 17 37 7
31 58 16 36 7
36 67 19 42 8
38 70 19 43 8
39 73 20 45 8
39 73 20 45 8
42 78 22 48 9
44 81 23 50 9
43 80 22 50 9
43 79 22 49 9
43 79 22 49 9
40 74 21 46 8
38 70 19 43 8
36 67 19 42 8
34 63 18 39 8
32 60 17 37 7
29 53 15 33 7
29 53 15 33 7
26 48 13 30 6
25 47 13 29 6
24 44 12 27 6
24 44 12 27 6

- - - - -
- - - - -
- - - - -
- - - - -
- - - - -
- - - - -
>35 >70 >20 >45 >8
- - - - -
>40 >75 >22 >45 >9
>40 >80 >23 >50 >9
>45 >80 >23 >50 >9
- - - - -
- - - - -
- - - - -
- - - - -
- - - - -
- - - - -
- - - - -
- - - - -
- - - - -
- - - - -
>30 >55 >16 >35 >7
>25 >50 >15 >30 >7
>25 >50 >14 >30 >7

0.8
0.8
0.8
0.9
1
1.1
1.1
1.2
1.2
1.1
1.1
1
1
0.9
0.9
0.9
0.9
0.9
0.9
0.9
0.9
0.9
0.8
0.8

1.5
1.5
1.6
1.8
1.9
2
2.1
2.2
2.2
2.2
2.1
2
1.9
1.8
1.8
1.8
1.8
1.8
1.8
1.8
1.8
1.7
1.6
1.5

0.7
0.7
0.8
0.8
0.9
1
1.1
1.2
1.2
1.1
1.1
1
0.9
0.8
0.7
0.7
0.6
0.5
0.6
0.6
0.6
0.5
0.4
0.4

195° S SSW
190° S S
185° S S
185° S S
195° S SSW
195° S SSW
165° S SSE
165° S SSE
155° SE SSE
160° S SSE
165° S SSE
190° S S
220° SW SW
220° SW SW
220° SW SW
225° SW SW
225° SW SW
225° SW SW
225° SW SW
220° SW SW
220° SW SW
225° SW SW
230° SW SW
230° SW SW

0.3
0.3
0.3
0.3
0.2
0.2
0.1
0.1
0.1
0.1
0.1
0.1
0.3
0.3
0.6
0.4
0.7
0.8
0.7
0.7
0.7
0.7
0.7
0.7

7
7
7
6
6
6
4
4
3
3
3
8
9
9
9
9
9
9
10
9
8
9
9
8

60
60
50
50
50
60
80
90
90
100
100
110
110
120
130
130
130
130
130
120
120
120
120
110

5.5
5.1
4.3
3.3
2.3
1.6
1.3
1.6
2.4
3.6
4.7
5.5
5.7
5.4
4.6
3.6
2.6
1.8
1.3
1.3
2.0
3.1
4.4
5.4

16 61
16 61
16 61
16 61
16 62
16 62
16 62
16 62
16 62
16 62
16 62
16 62
16 62
16 62
16 62
17 62
17 62
17 62
17 62
16 62
16 62
16 62
16 62
16 61

0
75
65
40
90
80
90
95
90
70
85
90
80
70
90
50
75
75
70
100
100
100
100
100

0
0
0
0
0
0
0
0
0.8
0.3
0
0
0
0
0
0
0
0
0
0
0
0.2
0.3
0

-
-
-
-
-
-
-
-
-

25
25
0
0
30
25
40
30
60
55
45
30
20
0
0
0
0
0
0
0
30
50
55
40

>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
999
999
999
999
999
999
998
998
998
998
999
999
999
1000
1000
1000
1000
1000
1000
1000
999
999

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

16 60
16 60
16 60
15 60
16 60
16 61
16 61
16 61
16 61
16 61
17 62
17 62
16 61
16 61
16 60
15 60
15 60
15 60
15 59
15 59
15 59
15 59
15 59
15 59

9 49
9 49
9 48
9 48
9 47
9 48
9 49
9 49
10 50
11 51
11 53
10 50
10 50
9 49
8 47
8 47
9 47
9 48
9 49
9 49
10 50
10 50
10 50
10 50

21 39 6 11 24
22 40 6 11 25
23 43 6 12 27
25 47 6 13 29
25 46 6 13 29
28 52 7 14 32
29 53 7 15 33
30 55 7 15 34
30 56 7 16 35
30 55 7 15 34
30 55 7 15 34
30 56 7 16 35
30 55 7 15 34
29 53 7 15 33
28 51 7 14 32
26 49 6 14 30
24 45 6 13 28
23 43 6 12 27
22 40 6 11 25
19 36 5 10 22
18 34 5 9 21
18 34 5 9 21
17 31 5 9 19
17 31 5 9 19

1.1
1.2
1.3
1.5
1.6
1.7
1.8
1.8
1.8
1.9
1.9
1.9
2
2
2
2
1.9
1.8
1.7
1.6
1.4
1.4
1.3
1.3

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 21 knots to the East and rising to 983 hPa to be centered on the South-West of England.

For Plage de Porcé :
Warning fresh gale offshore.

The reliability of the situation is assessed at 80%.

Skies very cloudy, risk of thundery outbreaks during the afternoon. Light showers arriving in late morning, then dying out. In the evening, good clear periods but lots of cloud, too.
No precipitation. SW force 6 becoming WSW force 7 in the middle of the day then W force 6. Gusts reaching 44 knots in the middle of the day. Slight sea. Low, short swell from SSE. Excellent visibility.

Tides at Saint-Nazaire

82

High tide 04h30 5.56m

Low tide 11h11 1.33m

84

High tide 16h46 5.72m

Low tide 23h32 1.23m

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

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- 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 Plage de Porcé

BULLETIN

Wind

Waves

Weather

Temperature

Offshore

Expert opinion

Tides at Saint-Nazaire