Weather Grève Noire - Detailed bulletin - Free 15-day Marine forecasts

Saint-Quay-Portrieux (22410)Longitude : -2°50’,2164 W Latitude : 48°39’,414 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

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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

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

Thu

25

-

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

Fri

26

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

Sat

27

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

Sun

28

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- 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%

Wind alert - Warning strong breeze offshore.

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)

25

20

15

10

5

40

30

20

10

0

15

10

5

0

25

20

15

10

5

10

5

0

1

0.5

0

3

0

20

15

10

5

65

60

55

50

45

Wed 17

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

250° W WSW
250° W WSW
250° W WSW
245° SW WSW
245° SW WSW
250° W WSW
250° W WSW
245° SW WSW
250° W WSW
255° W WSW
260° W W
265° W W
260° W W
255° W WSW
260° W W
260° W WSW
255° W WSW
250° W WSW
245° SW WSW
230° SW SW
220° SW SW
205° SW SSW
205° SW SSW
205° SW SSW

10 19 5 12 3
10 19 5 12 3
10 19 5 12 3
10 19 5 12 3
11 20 6 12 4
10 18 5 11 3
9 17 5 11 3
10 18 5 11 3
10 18 5 11 3
10 18 5 11 3
9 17 5 11 3
10 18 5 11 3
9 16 4 10 3
9 16 4 10 3
8 15 4 9 3
6 12 3 7 3
7 13 4 8 3
6 12 3 7 3
5 9 3 6 2
5 10 3 6 2
6 12 3 7 3
6 12 3 7 3
7 13 4 8 3
7 13 4 8 3

18 33 9 21 5
18 34 9 21 5
20 37 10 23 5
19 36 10 22 5
19 35 10 22 5
19 35 10 22 5
17 32 9 20 5
18 33 9 21 5
17 32 9 20 5
17 32 9 20 5
18 33 9 21 5
17 32 9 20 5
17 31 9 19 5
15 28 8 17 4
16 29 8 18 5
14 26 7 16 4
13 25 7 16 4
14 26 7 16 4
11 21 6 13 4
10 19 5 12 3
11 20 6 12 4
11 20 6 12 4
12 23 6 14 4
14 26 7 16 4

0.6
0.6
0.6
0.6
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
0.3
0.4
0.3
0.3
0.3
0.3

1.2
1.2
1.2
1.1
1.1
1
1
1.1
1
1
1
0.9
0.9
0.9
0.9
0.8
0.8
0.8
0.7
0.8
0.7
0.7
0.7
0.6

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

220° SW SW
220° SW SW
195° S SSW
195° S SSW
195° S SSW
195° S SSW
195° S SSW
265° W W
265° W W
220° SW SW
220° SW SW
220° SW SW
220° SW SW
220° SW SW
220° SW SW
220° SW SW
220° SW SW
220° SW SW
220° SW SW
195° S SSW
260° W W
265° W W
220° SW SW
220° SW SW

0.6
0.6
0.6
0.6
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
0.3
0.3
0.3
0.3
0.3
0.3

8
8
12
12
12
12
11
10
10
8
8
8
8
8
8
8
8
7
8
10
10
10
8
8

210
220
230
230
230
230
220
190
200
190
180
180
180
170
170
180
180
180
180
150
160
160
140
150

8.3
8.2
7.7
6.9
6.0
5.3
4.8
4.7
5.1
5.9
6.8
7.6
8.2
8.4
8.1
7.6
6.8
5.9
5.1
4.6
4.5
4.8
5.5
6.4

18 65
18 65
18 65
18 65
18 65
18 65
18 65
18 65
18 65
18 65
18 65
18 65
18 65
18 65
18 65
18 65
18 65
18 65
18 65
18 65
18 65
18 65
18 65
18 65

0
0
85
85
80
50
85
65
90
100
100
100
100
100
100
95
100
95
95
70
90
45
50
65

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
30
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
>20
>20
>20
>20
>20
>20
>20
>20
>20
>20
>20
>20
>20
>20
>20
>20

1021
1022
1021
1021
1022
1022
1022
1023
1023
1024
1024
1024
1024
1023
1023
1023
1022
1022
1022
1022
1022
1022
1022
1021

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

14 56
14 56
14 56
13 56
13 56
13 56
13 56
14 56
15 58
16 60
16 61
17 63
17 63
17 63
18 64
18 64
18 64
17 63
17 62
16 60
15 60
15 58
14 58
14 58

10 50
10 50
10 50
10 50
10 49
10 49
10 49
11 51
13 55
14 57
15 59
16 60
16 61
15 59
15 59
15 60
16 61
15 60
15 58
14 57
13 55
12 54
12 53
12 53

21 38 5 11 24
20 37 5 10 23
21 39 6 11 24
19 36 5 10 22
20 37 5 10 23
19 36 5 10 22
19 35 5 10 22
18 34 5 9 21
17 32 5 9 20
16 30 5 8 19
15 27 4 8 17
14 26 4 7 16
13 24 4 7 15
12 22 4 6 14
11 21 4 6 13
10 18 3 5 11
10 18 3 5 11
9 17 3 5 11
9 16 3 4 10
11 21 4 6 13
12 22 4 6 14
13 24 4 7 15
14 26 4 7 16
15 27 4 8 17

1.6
1.6
1.5
1.5
1.4
1.4
1.3
1.3
1.3
1.2
1.2
1.1
1.1
1
1
1
0.9
0.9
0.8
0.8
0.8
0.7
0.7
0.7

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

Expert opinion

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

For Grève Noire :
Warning strong breeze offshore.

The reliability of the situation is assessed at 95%.

Very cloudy in the morning, overcast skies in the afternoon. No precipitation. In the evening, very cloudy.
No precipitation. WSW force 4 becoming W force 3 in the middle of the day then SW. Gusts reaching 19 knots in the morning. Smooth to slight sea. Low, fairly long swell from SSW. Excellent visibility.

Tides at Saint-Quay-Portrieux

38

High tide 02h07 8.33m

Low tide 08h43 4.73m

38

High tide 14h50 8.39m

Low tide 21h55 4.48m

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

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

Thu

25

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

Fri

26

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- 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

* +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 Grève Noire

BULLETIN

Wind

Waves

Weather

Temperature

Offshore

Expert opinion

Tides at Saint-Quay-Portrieux