Weather Port Lay - Detailed bulletin - Free 15-day Marine forecasts

Groix FRALongitude : -3°27’,594 W Latitude : 47°38’,772 N Altitude : 3m

Thu

17

-

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

Fri

18

-

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

Sat

19

-

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

Sun

20

-

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

Mon

21

-

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

Tue

22

-

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

Wed

23

-

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

Thu

24

-

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

Fri

25

-

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

Sat

26

-

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

Sun

27

-

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

Mon

28

-

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

Tue

29

-

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

Wed

30

-

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

Thu

31

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

BULLETIN

(established in local time)

Reliability 90%

No gale warning.

Thursday 17 july

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

30

20

10

0

50

40

30

20

10

0

15

10

5

0

30

20

10

0

10

5

0

1

0.5

0

3

0

35

30

25

20

15

10

90

80

70

60

50

Fri 18

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

305° NW NW
310° NW NW
310° NW NW
315° NW NW
320° NW NW
330° NW NNW
340° N NNW
335° NW NNW
325° NW NW
285° W WNW
235° SW SW
245° SW WSW
255° W WSW
265° W W
270° W W
275° W W
275° W W
280° W W
275° W W
285° W WNW
280° W WNW
295° NW WNW
315° NW NW
315° NW NW

9 16 4 10 3
6 12 3 7 3
6 11 3 7 2
5 10 3 6 2
5 10 3 6 2
5 9 3 6 2
4 7 2 4 2
3 6 2 4 2
2 4 1 2 1
1 1 0 1 1
2 4 1 2 1
4 7 2 4 2
5 10 3 6 2
8 14 4 9 3
10 18 5 11 3
10 19 5 12 3
11 21 6 13 4
12 22 6 14 4
13 25 7 16 4
15 27 8 17 4
16 29 8 18 5
13 24 7 15 4
11 21 6 13 4
11 20 6 12 4

11 21 6 13 4
10 19 5 12 -
9 16 4 10 3
8 15 4 9 3
9 16 4 10 3
8 15 4 9 3
7 13 4 8 3
6 11 3 7 -
6 11 3 7 2
8 15 4 9 3
9 16 4 10 3
9 16 4 10 3
9 16 4 10 3
11 20 6 12 4
13 25 7 16 4
15 27 8 17 4
16 30 8 19 5
17 31 9 19 5
18 34 9 21 5
21 38 11 24 5
22 40 11 25 6
21 39 11 24 6
18 33 9 21 5
16 30 8 19 5

0.5
0.4
0.5
0.5
0.5
0.5
0.5
0.5
0.5
0.5
0.5
0.5
0.5
0.5
0.5
0.5
0.5
0.6
0.6
0.7
0.7
0.7
0.6
0.5

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

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

275° W W
280° W W
280° W W
280° W W
280° W W
280° W W
275° W W
275° W W
275° W W
275° W W
275° W W
275° W W
275° W W
280° W W
285° W WNW
285° W WNW
285° W WNW
285° W WNW
245° SW WSW
240° SW WSW
240° SW WSW
240° SW WSW
265° W W
275° W W

0.5
0.4
0.4
0.4
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
0.5
0.5
0.5

7
7
7
7
7
7
7
7
7
7
7
7
7
8
8
8
8
8
8
8
8
7
8
7

90
80
90
90
90
90
90
100
100
110
110
110
110
100
100
100
100
100
90
80
80
90
90
100

2.1
1.5
1.4
1.6
2.2
3.0
3.8
4.3
4.5
4.2
3.7
3.1
2.4
1.9
1.6
1.7
2.2
2.8
3.6
4.2
4.6
4.5
4.2
3.5

17 63
17 63
17 63
17 63
17 63
17 63
17 63
17 63
17 63
18 64
18 64
18 64
18 64
18 65
18 65
18 65
18 65
18 65
18 65
18 65
18 64
18 64
18 64
18 64

0
20
35
70
90
95
95
90
90
80
80
70
45
30
20
5
5
15
35
35
30
85
70
90

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

10
5
4
3
2
3
4
5
10
10
15
15
>20
>20
>20
>20
>20
>20
>20
>20
>20
>20
>20
>20

1020
1020
1020
1019
1019
1019
1019
1019
1019
1019
1019
1019
1019
1018
1018
1018
1017
1017
1016
1016
1016
1016
1015
1016

0
0
0
0
0
0
0
0
1
2
3
5
7
8
7
5
3
2
1
0
0
0
0
0

17 62
16 60
15 60
15 59
15 59
15 60
16 61
17 63
19 66
20 69
21 70
21 71
22 71
22 71
22 71
22 71
21 71
21 70
20 69
20 67
19 67
19 65
18 64
17 63

14 56
13 56
13 56
13 55
13 55
14 56
15 58
17 62
20 68
26 78
26 78
29 84
30 85
29 84
28 83
28 82
25 78
22 72
20 67
15 59
14 57
14 57
14 57
14 56

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

Expert opinion

For Port Lay :
No gale warning.

The reliability of the situation is assessed at 90%.

Skies very cloudy to overcast in the morning, cloud largely disappearing in the afternoon. No precipitation. In the evening, relatively clear skies becoming changeable.
NNW force 2 turning W force 3 in the middle of the day then becoming force 5. Gusts reaching 22 knots in the evening. Smooth to slight sea becoming slight in the evening. Low, short swell from W. Visibility reduced by mist becoming good in the middle of the day then excellent.

Tides at Port-Tudy

69

Low tide 03h53 1.39m

High tide 09h52 4.46m

65

Low tide 16h16 1.6m

High tide 22h25 4.61m

www.shom.fr - © SHOM 2025

Consult the tides for July

Thu

17

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

Fri

18

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

Sat

19

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

Sun

20

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

Mon

21

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

Tue

22

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

Wed

23

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

Thu

24

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

Fri

25

-

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

Sat

26

-

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

Sun

27

-

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

Mon

28

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

Tue

29

-

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

Wed

30

-

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

Thu

31

-

- 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 anchorage Port Lay

BULLETIN

Wind

Waves

Weather

Temperature

Expert opinion

Tides at Port-Tudy