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

Sat

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Sun

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Mon

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Wed

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Sun

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Mon

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24

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BULLETIN

(* established in local time)

Reliability 80%

No gale warning.

Saturday 14 mar

METEO CONSULT Run : 13/03 00Z Mesh : 1km Updated, 8h ago Update imminent

Wind

Average winds

Gusts

10m above ground level:

Direction

Speed

Gusts

Waves

Total sea (m) (m)

Swell (m) (m)

Total sea (m)

Wind (m)

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)

25

20

15

10

5

0

40

30

20

10

0

15

10

5

0

30

20

10

0

10

5

0

1

0.5

0

3

0

15

10

5

0

-5

60

50

40

30

20

10

0

-10

                                    
                                                                         Sun 15
                                                            
                    02h
                
                    03h
                
                    04h
                
                    05h
                
                    06h
                
                    07h
                
                    08h
                
                    09h
                
                    10h
                
                    11h
                
                    12h
                
                    13h
                
                    14h
                
                    15h
                
                    16h
                
                    17h
                
                    18h
                
                    19h
                
                    20h
                
                    21h
                
                    22h
                
                    23h
                
                    00h
                
                    01h
                
                        Run : 13/03 00Z
                Mesh : 1km
                Updated, 8h ago
                Update imminent

Sun 15

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

255° W WSW
255° W WSW
245° SW WSW
255° W WSW
250° W WSW
260° W WSW
260° W W
275° W W
305° NW NW
320° NW NW
315° NW NW
310° NW NW
340° N NNW
340° N NNW
340° N NNW
335° NW NNW
325° NW NW
315° NW NW
270° W W
265° W W
250° W WSW
250° W WSW
250° W WSW
250° W WSW

10 19 5 12 3
10 19 5 12 3
11 20 6 12 4
10 19 5 12 3
11 20 6 12 4
10 18 5 11 3
8 15 4 9 3
8 14 4 9 3
8 14 4 9 3
6 12 3 7 3
6 12 3 7 3
5 10 3 6 2
6 11 3 7 2
6 12 3 7 3
5 10 3 6 2
6 11 3 7 2
5 10 3 6 2
4 8 2 5 2
4 8 2 5 2
5 9 3 6 2
6 11 3 7 2
6 12 3 7 3
6 12 3 7 3
6 12 3 7 3

16 30 8 19 5
17 31 9 19 5
19 35 10 22 5
17 32 9 20 5
21 39 11 24 6
20 37 10 23 5
16 29 8 18 5
16 29 8 18 5
16 29 8 18 5
16 30 8 19 5
16 30 8 19 5
13 24 7 15 4
13 25 7 16 4
12 23 6 14 4
12 23 6 14 4
12 22 6 14 4
11 21 6 13 4
10 18 5 11 3
9 17 5 11 3
10 18 5 11 3
10 19 5 12 3
11 20 6 12 4
11 20 6 12 4
11 21 6 13 4

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
0.5
0.5
0.5
0.5
0.5
0.5
0.4
0.4
0.4
0.4

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

320° NW NW
320° NW NW
320° NW NW
320° NW NW
325° NW NW
320° NW NW
315° NW NW
315° NW NW
320° NW NW
330° NW NNW
330° NW NNW
330° NW NNW
330° NW NNW
325° NW NNW
325° NW NW
325° NW NW
325° NW NNW
320° NW NW
325° NW NNW
320° NW NW
330° NW NNW
325° NW NW
325° NW NW
320° NW NW

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
0.5
0.5
0.5
0.5
0.5
0.5
0.5
0.4
0.4
0.4
0.4

13
13
13
13
13
13
12
12
12
11
11
11
11
11
11
11
11
11
12
12
12
12
12
12

280
270
250
270
270
250
250
250
240
240
240
240
240
230
230
230
230
230
240
240
240
240
240
240

7.4
7.6
7.6
7.3
6.8
6.1
5.5
5.1
4.9
5.1
5.7
6.4
7.1
7.6
7.9
7.8
7.4
6.7
5.9
5.2
4.8
4.8
5.3
6.0

10 51
10 50
10 50
10 50
10 50
10 50
10 50
10 50
10 50
10 50
10 50
10 50
10 51
10 51
10 51
10 51
10 51
10 51
10 51
10 51
10 51
10 50
10 50
10 50

20
5
60
70
50
80
80
75
90
80
75
65
55
50
55
60
30
30
30
40
25
25
15
10

0.5
0.1
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0

-
-
-
-
-
-
-
-

100
50
20
30
35
40
30
35
30
30
25
25
25
30
30
20
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
>20
15
10
10
10
10

1005
1005
1005
1005
1005
1006
1006
1007
1007
1008
1008
1009
1009
1009
1009
1010
1010
1011
1012
1012
1013
1014
1014
1014

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

3 37
3 38
4 39
4 40
4 39
4 40
4 40
6 43
7 45
8 47
8 47
9 48
9 49
9 48
9 49
9 48
9 48
7 45
6 42
5 41
5 41
5 40
4 40
4 39

-1 31
0 31
0 0
1 33
0 32
1 33
2 35
4 39
5 41
8 47
8 46
10 50
12 53
11 51
10 51
9 49
8 46
6 43
4 39
3 38
3 37
2 36
2 35
1 35

17 32 5 9 20
16 30 5 8 19
16 30 5 8 19
15 27 4 8 17
16 29 5 8 18
15 27 4 8 17
11 20 4 6 12
9 17 3 5 11
9 17 3 5 11
9 17 3 5 11
9 16 3 4 10
8 15 3 4 9
8 14 3 4 9
8 14 3 4 9
8 14 3 4 9
7 13 3 4 8
7 13 3 4 8
8 14 3 4 9
7 13 3 4 8
7 13 3 4 8
6 12 3 3 7
8 15 3 4 9
9 17 3 5 11
10 18 3 5 11

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

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

Expert opinion

A northwesterly and very variable flow prevails over the whole area.

For Grève de Saint Marc :
No gale warning.

We are 80% sure of the situation, because the high pressure system could move in more quickly than forecast.

Skies changeable to very cloudy. Risk of showers in the morning, possibility of showers in late afternoon. In the evening, lots of good clear periods.
No precipitation. W force 4 turning NNW force 3 in the middle of the day then W. Gusts reaching 21 knots in the morning. Slight sea becoming smooth to slight in the evening. Low, long swell from NW. Excellent visibility becoming good in the evening.

Tides at Saint-Quay-Portrieux

28

High tide 03h31 7.67m

Low tide 09h57 4.94m

35

High tide 16h14 7.91m

Low tide 22h36 4.78m

www.shom.fr - © SHOM 2026

Consult the tides for March

Go further

Sat

14

-

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

Sun

15

-

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

Mon

16

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

Tue

17

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

Wed

18

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

Thu

19

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

Fri

20

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

Sat

21

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

Sun

22

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

Mon

23

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

Tue

24

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

Wed

25

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

Thu

26

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

Fri

27

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

Sat

28

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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

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