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

Pornic FRALongitude : -2°9’,8766 W Latitude : 47°7’,098 N Altitude : 0m

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

-

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

Tue

30

-

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

Wed

01

-

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

Thu

02

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

BULLETIN

(established in local time)

Reliability 90%

No gale warning.

Thursday 18 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)

15

10

5

0

30

20

10

0

10

5

0

20

15

10

5

0

5

0

1

0.5

3

0

40

30

20

10

90

80

70

60

50

Fri 19

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

235° SW WSW
265° W W
280° W W
310° NW NW
345° N NNW
40° NE NE
65° NE ENE
80° E ENE
80° E E
80° E E
90° E E
95° E E
100° E E
105° E ESE
120° SE ESE
130° SE SE
140° SE SE
140° SE SE
150° SE SSE
160° S SSE
175° S S
190° S S
195° S SSW
205° SW SSW

2 4 1 2 1
3 6 2 4 2
2 4 1 2 1
1 2 1 1 1
1 2 1 1 1
3 5 1 3 1
3 6 2 4 2
4 8 2 5 2
6 11 3 7 2
6 11 3 7 2
7 13 4 8 3
8 14 4 9 3
8 14 4 9 3
8 14 4 9 3
7 13 4 8 3
8 14 4 9 3
9 16 4 10 3
10 18 5 11 3
9 17 5 11 3
8 15 4 9 3
7 13 4 8 3
8 15 4 9 3
9 17 5 11 3
9 16 4 10 3

6 11 3 7 2
8 15 4 9 3
6 12 3 7 3
4 8 2 5 2
4 7 2 4 2
5 9 3 6 2
4 8 - 5 -
6 11 3 7 -
8 14 4 9 3
8 14 4 9 3
9 16 - 10 -
10 18 5 11 -
10 19 5 12 -
11 20 6 12 4
10 19 5 12 -
11 20 6 12 4
11 21 6 13 4
13 24 7 15 4
13 25 7 16 4
12 23 6 14 4
12 22 6 14 4
12 23 6 14 4
13 25 7 16 4
14 26 7 16 4

0.7
0.7
0.7
0.7
0.7
0.7
0.7
0.7
0.7
0.7
0.7
0.7
0.6
0.6
0.6
0.6
0.6
0.6
0.6
0.6
0.7
0.7
0.6
0.6

1.4
1.4
1.4
1.4
1.4
1.4
1.4
1.4
1.4
1.4
1.4
1.3
1.3
1.3
1.2
1.2
1.2
1.2
1.3
1.3
1.3
1.4
1.2
1.2

0
0
0
0
0
0
0
0
0
0
0
0.1
0.1
0.1
0
0
0
0.1
0.2
0.2
0.2
0.2
0.1
0.1

260° W W
265° W W
260° W W
260° W W
260° W W
260° W W
260° W W
260° W W
260° W W
260° W W
260° W W
260° W W
260° W W
260° W W
260° W W
260° W W
260° W W
260° W W
260° W W
260° W W
260° W WSW
260° W WSW
260° W WSW
260° W WSW

0.7
0.7
0.7
0.7
0.7
0.7
0.7
0.7
0.7
0.7
0.7
0.6
0.6
0.6
0.6
0.6
0.6
0.6
0.6
0.6
0.6
0.6
0.6
0.6

10
10
10
9
9
9
9
9
9
9
9
9
9
9
9
9
9
9
9
8
8
8
8
8

160
160
150
150
150
150
140
140
130
130
130
140
140
140
140
130
130
130
120
110
110
110
120
120

5.2
5.0
4.3
3.4
2.4
1.7
1.5
1.8
2.4
3.2
4.0
4.7
5.1
5.0
4.4
3.6
2.6
1.9
1.6
1.7
2.3
3.2
4.1
4.9

19 67
19 67
19 67
19 67
19 67
19 67
19 67
19 67
19 67
19 66
19 66
19 66
19 66
19 66
19 66
19 66
19 66
19 66
19 66
19 66
19 66
19 66
19 66
19 67

0
5
5
5
5
5
5
5
5
5
5
5
5
5
10
10
10
5
5
5
30
15
35
35

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

1022
1022
1021
1021
1021
1021
1021
1021
1020
1020
1020
1019
1019
1018
1018
1018
1018
1018
1018
1018
1019
1018
1018
1018

4
2
1
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
1
2
4
5
5
4

22 72
21 70
21 69
20 68
19 66
18 64
17 63
17 62
17 62
16 62
16 61
16 61
16 61
16 61
14 57
14 57
16 62
18 64
19 67
21 70
22 72
23 73
23 73
23 73

30 86
27 80
26 78
24 75
19 65
17 62
16 61
15 59
14 58
14 57
14 56
14 56
13 56
13 56
11 52
11 52
13 56
15 58
18 64
24 76
27 80
28 82
28 83
28 82

3 5 1 1 3
2 3 1 1 2
3 5 1 1 3
3 6 2 2 4
3 6 2 2 4
5 10 2 3 6
6 11 2 3 7
7 13 3 4 8
6 12 3 3 7
6 12 3 3 7
8 15 3 4 9
10 19 3 5 12
12 22 4 6 14
12 23 4 6 14
12 23 4 6 14
13 24 4 7 15
13 25 4 7 16
14 26 4 7 16
15 27 4 8 17
13 25 4 7 16
12 23 4 6 14
12 22 4 6 14
10 19 3 5 12
8 15 3 4 9

1.2
1.2
1.1
1.1
1.1
1.1
1.1
1.1
1.1
1.1
1.1
1.1
1.1
1.1
1.1
1.1
1.1
1.1
1.1
1.1
1.1
1.1
1.1
1.1

Forecasts established in local time
Last updated 29min ago | Next update in 3h
Caption

Expert opinion

An easterly and mostly variable flow prevails over the South-East of the basin. Over the West and the North, it is southerly, strong and mostly variable.

For Plage de Portmain :
No gale warning.

The reliability of the situation is assessed at 90%.

Clear skies. In the evening, clear skies.
W force 2 in the middle of the day turning NNE in the evening. Gusts reaching 8 knots in the middle of the day. Slight sea. Low, fairly long swell from W. Excellent visibility becoming good in the evening.

Tides at Pornic

54

High tide 03h46 4.87m

Low tide 09h17 1.94m

61

High tide 16h02 5.2m

Low tide 21h57 1.52m

www.shom.fr - © SHOM 2025

Consult the tides for September

Thu

18

-

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

Fri

19

-

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

Sat

20

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- 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

-

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

Tue

30

-

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

Wed

01

-

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

Thu

02

-

- 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 Portmain

BULLETIN

Wind

Waves

Weather

Temperature

Offshore

Expert opinion

Tides at Pornic