Weather Grève de Saint Marc - Detailed bulletin - Free 15-day Marine forecasts

Tréveneuc (22411)Lon : -2°51’,1836 W Lat : 48°40’,014 N Alt : 0m

Wed

15

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

Thu

16

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

Fri

17

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

Sat

18

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

Sun

19

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

Mon

20

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

Tue

21

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

Wed

22

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

Thu

23

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

Fri

24

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

Sat

25

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

Sun

26

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

Mon

27

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

Tue

28

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

Wed

29

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

BULLETIN

Reliability 85%

No gale warning.

Marine wind risk

Wednesday 15 apr

METEO CONSULT Run : 15/04 00Z Mesh : 1km Updated, 2h ago Update in 4h

Wind

Average winds

Gusts

10m above ground level:

Direction

Speed

Gusts

Waves

Total sea (m) (m)

Swell (m) (m)

legend.title.wave_height

Total sea (m)

legend.title.wind_sea

Wind (m)

legend.title.swell

Swell direction

Swell height (m)

Swell period (s)

Wave length (m)

High tide (m)

Sea temp

Weather

Rain (mm) (mm)

Clouds:

Cloud cover (%)

Precipitation:

Amount of precipitation (mm)

Type of precipitation

Risks:

Precipitation risk (%)

Storm risk. (%)

Brightness:

Visibility (km)

Pressure (hPa)

UV

Temperature

Air temp

Perceived temp

Air temp

Perceived temp

Offshore

Offshore wind

Offshore sea (m)

30

20

10

0

60

50

40

30

20

10

20

15

10

5

0

40

30

20

10

0

10

5

0

1

0.5

0

3

0

20

15

10

5

70

60

50

40

                                    
                                                                         Thu 16
                                                            
                    14h
                
                    15h
                
                    16h
                
                    17h
                
                    18h
                
                    19h
                
                    20h
                
                    21h
                
                    22h
                
                    23h
                
                    00h
                
                    01h
                
                    02h
                
                    03h
                
                    04h
                
                    05h
                
                    06h
                
                    07h
                
                    08h
                
                    09h
                
                    10h
                
                    11h
                
                    12h
                
                    13h
                
                        Run : 15/04 00Z
                Mesh : 1km
                Updated, 2h ago
                Update in 4h

Thu 16

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

215° SW SW
220° SW SW
230° SW SW
235° SW SW
240° SW WSW
240° SW WSW
235° SW SW
230° SW SW
230° SW SW
220° SW SW
220° SW SW
220° SW SW
220° SW SW
220° SW SW
225° SW SW
225° SW SW
225° SW SW
210° SW SSW
205° SW SSW
210° SW SSW
210° SW SSW
220° SW SW
225° SW SW
220° SW SW

17 32 9 20 5
16 30 8 19 5
15 28 8 17 4
14 26 7 16 4
13 25 7 16 4
12 23 6 14 4
10 19 5 12 3
9 17 5 11 3
8 14 4 9 3
8 14 4 9 3
8 15 4 9 3
8 15 4 9 3
9 16 4 10 3
9 17 5 11 3
9 17 5 11 3
8 15 4 9 3
8 15 4 9 3
8 14 4 9 3
7 13 4 8 3
8 15 4 9 3
9 17 5 11 3
10 18 5 11 3
9 17 5 11 3
9 17 5 11 3

29 54 15 34 7
28 52 14 32 7
27 50 14 31 7
25 47 13 29 6
24 44 12 27 6
23 42 12 26 6
21 38 11 24 5
18 34 9 21 5
17 31 9 19 5
15 27 8 17 4
15 27 8 17 4
15 28 8 17 4
16 29 8 18 5
17 32 9 20 5
17 32 9 20 5
16 30 8 19 5
15 28 8 17 4
15 27 8 17 4
13 24 7 15 4
15 27 8 17 4
16 30 8 19 5
17 32 9 20 5
17 32 9 20 5
17 31 9 19 5

0.3
0.3
0.3
0.3
0.3
0.3
0.3
0.3
0.3
0.3
0.4
0.4
0.3
0.4
0.4
0.4
0.4
0.4
0.4
0.5
0.5
0.5
0.5
0.5

0.2
0.2
0.2
0.2
0.2
0.2
0.1
0.1
0.1
0.1
0.2
0.1
0.1
0.2
0.1
0.1
0.1
0.1
0.1
0.1
0.2
0.1
0.1
0.1

355° N N
355° N N
355° N N
355° N N
355° N N
355° N N
355° N N
355° N N
355° N N
355° N N
355° N N
355° N N
355° N N
355° N N
355° N N
355° N N
355° N N
350° N N
355° N N
355° N N
355° N N
355° N N
355° N N
355° N N

0.2
0.2
0.2
0.2
0.2
0.3
0.3
0.3
0.3
0.3
0.3
0.3
0.3
0.3
0.3
0.3
0.4
0.4
0.4
0.4
0.4
0.5
0.5
0.5

9
9
9
9
10
10
10
10
10
10
10
10
11
10
10
10
10
12
12
12
13
12
13
13

130
130
130
120
120
120
130
140
150
150
120
140
160
150
160
200
200
200
240
250
200
230
240
240

3.1
4.7
6.8
8.7
10.1
10.4
9.7
8.3
6.4
4.5
3.0
2.3
2.6
4.0
6.1
8.4
10.1
10.9
10.4
9.1
7.1
5.0
3.1
2.0

11 53
11 53
11 53
11 53
11 53
11 53
11 53
11 53
11 53
11 53
11 52
11 52
11 52
11 52
11 52
11 52
11 52
11 52
11 52
11 52
11 52
11 52
11 53
12 53

100
100
100
35
35
20
20
50
30
40
30
20
20
25
35
25
25
40
65
55
30
65
55
70

0.1
0.1
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0

-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-

75
55
30
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
>20
>20
>20
>20
>20
>20
>20
>20
>20
>20
>20
>20
>20
15
>20
>20
>20
>20
>20

1017
1017
1017
1017
1018
1018
1018
1019
1020
1020
1020
1021
1021
1021
1021
1021
1021
1021
1021
1022
1022
1022
1022
1022

0
0
1
2
1
1
0
0
0
0
0
0
0
0
0
0
0
0
0
0
1
2
3
3

15 59
15 60
16 60
17 62
17 62
16 60
15 58
13 56
12 54
11 52
11 52
10 51
10 50
9 49
10 50
9 49
10 50
10 50
10 50
11 52
13 55
14 57
15 59
16 60

9 49
10 50
11 51
17 62
16 60
14 57
12 54
10 50
9 49
9 47
8 47
8 46
7 44
6 43
7 44
7 44
7 45
7 45
8 46
9 49
12 54
14 58
16 61
17 62

17 31 5 9 19
15 28 4 8 17
14 26 4 7 16
13 24 4 7 15
12 23 4 6 14
13 24 4 7 15
12 22 4 6 14
12 22 4 6 14
12 23 4 6 14
11 21 4 6 13
12 22 4 6 14
12 22 4 6 14
13 24 4 7 15
14 26 4 7 16
13 25 4 7 16
12 23 4 6 14
12 22 4 6 14
12 22 4 6 14
12 23 4 6 14
12 22 4 6 14
11 20 4 6 12
10 18 3 5 11
8 15 3 4 9
6 11 2 3 7

0.9
0.9
0.8
0.7
0.8
0.8
0.8
0.7
0.7
0.7
0.7
0.7
0.7
0.7
0.7
0.7
0.8
0.8
0.8
0.8
0.8
0.8
0.8
0.8

Forecasts established in local time
Caption Glossary

Expert opinion

High 1023 hPa centered on the center of France remaining almost stationary.

For Grève de Saint Marc :
No gale warning.

The reliability of the situation is assessed at 85%.

Good clear periods but cloud building. Light showers. In the evening, light cloudy spells.
SW force 5 in the middle of the day becoming force 4 in the evening. Gusts reaching 29 knots in the middle of the day. Smooth to slight sea. Low, fairly long swell from N. Excellent visibility.

Tides at Saint-Quay-Portrieux

73

Low tide 00h31 3.08m

High tide 06h20 10.1m

81

Low tide 12h55 2.46m

High tide 18h47 10.43m

www.shom.fr - © SHOM 2026 - Local times

Consult the tides for April

Go further

Wed

15

-

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

Thu

16

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

Fri

17

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

Sat

18

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

Sun

19

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

Mon

20

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

Tue

21

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

Wed

22

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

Thu

23

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

Fri

24

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

Sat

25

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

Sun

26

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

Mon

27

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

Tue

28

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

Wed

29

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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 de Saint Marc

BULLETIN

Wind

Waves

Weather

Temperature

Offshore

Expert opinion

Tides at Saint-Quay-Portrieux

Go further