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

Sun

24

-

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

Mon

25

-

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

Tue

26

-

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

Wed

27

-

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

Thu

28

-

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

Fri

29

-

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

Sat

30

-

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

Sun

31

-

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

Mon

01

-

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

Tue

02

-

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

Wed

03

-

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

Thu

04

-

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

Fri

05

-

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

Sat

06

-

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

Sun

07

-

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

BULLETIN

Reliability 90%

No gale warning.

No weather risk at the spot

Sunday 24 may

METEO CONSULT Run : 24/05 00Z Mesh : 4km Updated, 3min ago Update in 12min

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)

10

5

0

20

15

10

5

0

10

5

0

15

10

5

0

5

0

0.5

0

3

0

40

30

20

10

100

90

80

70

60

50

                                    
                                                                         Mon 25
                                                            
                    23h
                
                    00h
                
                    01h
                
                    02h
                
                    03h
                
                    04h
                
                    05h
                
                    06h
                
                    07h
                
                    08h
                
                    09h
                
                    10h
                
                    11h
                
                    12h
                
                    13h
                
                    14h
                
                    15h
                
                    16h
                
                    17h
                
                    18h
                
                    19h
                
                    20h
                
                    21h
                
                    22h
                
                        Run : 24/05 00Z
                Mesh : 4km
                Updated, 3min ago
                Update in 12min

Mon 25

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

60° NE ENE
60° NE ENE
85° E E
65° NE ENE
60° NE ENE
55° NE NE
60° NE ENE
80° E E
110° E ESE
100° E ESE
90° E E
75° E ENE
65° NE ENE
50° NE NE
50° NE NE
65° NE ENE
60° NE ENE
50° NE NE
50° NE NE
45° NE NE
40° NE NE
40° NE NE
50° NE NE
65° NE ENE

3 5 1 3 1
3 5 1 3 1
3 6 2 4 2
3 6 2 4 2
3 5 1 3 1
2 4 1 2 1
2 4 1 2 1
2 3 1 2 1
2 3 1 2 1
2 3 1 2 1
3 5 1 3 1
3 6 2 4 2
4 7 2 4 2
4 8 2 5 2
4 8 2 5 2
5 9 3 6 2
4 8 2 5 2
4 8 2 5 2
4 8 2 5 2
4 7 2 4 2
3 6 2 4 2
3 5 1 3 1
2 4 1 2 1
2 3 1 2 1

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

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
0.3
0.3
0.3
0.3
0.3
0.3
0.3
0.3
0.3
0.3
0.3

0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0

40° NE NE
45° NE NE
40° NE NE
40° NE NE
35° NE NE
35° NE NE
30° NE NNE
30° NE NNE
25° NE NNE
20° N NNE
20° N NNE
15° N NNE
5° N N
0° N N
0° 0 0
360° N N
360° N N
5° N N
5° N N
360° N N
360° N N
5° N N
360° N N
360° N N

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
0.3
0.3
0.3
0.3
0.3
0.3
0.3
0.3
0.3
0.3
0.3

4
4
4
4
4
5
5
5
5
5
5
6
8
8
10
10
10
10
10
10
10
10
9
9

30
30
30
30
35
35
40
190
190
190
230
230
230
230
230
230
220
220
210
210
210
210
210
210

5.6
6.9
8.1
8.9
9.0
8.5
7.6
6.5
5.3
4.3
3.8
3.8
4.5
5.7
7.0
8.2
8.8
8.8
8.2
7.2
6.0
4.9
4.1
3.9

15 60
15 60
15 60
15 60
15 60
15 60
15 59
15 59
15 59
15 59
15 59
15 59
15 60
15 60
15 60
16 60
16 60
16 60
16 60
16 61
16 61
16 61
16 61
16 61

0
0
0
0
0
0
0
5
5
5
0
5
0
15
15
15
20
15
10
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
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
15
15
15
10
10
10
5
5
5
15
>20
>20
>20
>20
>20
>20
>20
>20
>20
>20
>20
>20
>20

1028
1028
1028
1028
1028
1028
1027
1027
1027
1028
1028
1028
1028
1028
1028
1027
1027
1027
1026
1026
1026
1026
1026
1026

0
0
0
0
0
0
0
0
0
0
1
3
4
6
7
7
7
6
4
3
1
0
0
0

19 66
18 65
17 63
17 62
16 61
16 61
16 60
13 56
14 58
18 64
20 67
21 70
22 72
23 73
23 74
24 75
25 76
25 77
25 78
25 78
24 76
23 74
22 72
21 69

18 64
17 63
16 61
16 60
15 60
15 59
15 59
13 55
14 57
18 64
21 70
28 82
30 85
32 89
33 91
33 92
34 94
34 94
34 93
33 91
31 87
28 82
26 78
23 74

13 24 4 7 15
12 22 4 6 14
10 19 3 5 12
10 18 3 5 11
10 18 3 5 11
8 14 3 4 9
7 13 3 4 8
8 14 3 4 9
7 13 3 4 8
6 11 2 3 7
6 11 2 3 7
7 13 3 4 8
7 13 3 4 8
8 14 3 4 9
8 15 3 4 9
10 18 3 5 11
9 17 3 5 11
8 15 3 4 9
8 14 3 4 9
6 12 3 3 7
6 11 2 3 7
6 12 3 3 7
6 12 3 3 7
6 12 3 3 7

0.7
0.7
0.7
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
0.5
0.5
0.5
0.5
0.5
0.5
0.5
0.5

Forecasts established in local time
Caption Glossary

Expert opinion

A northeasterly and very variable flow prevails over the South of the basin. Over the North, it is southerly, moderate and very variable.

For Grève de Saint Marc :
No gale warning.

The reliability of the situation is assessed at 90%.

In the evening, clear skies.
NE wind force 1. Gusts reaching 6 knots in the evening. Smooth sea. Low, short swell from NNE. Excellent visibility.

Tides at Saint-Quay-Portrieux

52

High tide 01h28 9.19m

Low tide 08h22 3.66m

51

High tide 14h19 8.82m

Low tide 20h49 4.02m

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

Consult the tides for May

Go further

Sun

24

-

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

Mon

25

-

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

Tue

26

-

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

Wed

27

-

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

Thu

28

-

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

Fri

29

-

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

Sat

30

-

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

Sun

31

-

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

Mon

01

-

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

Tue

02

-

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

Wed

03

-

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

Thu

04

-

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

Fri

05

-

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

Sat

06

-

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

Sun

07

-

- 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