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

Thu

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Fri

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Mon

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Thu

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Fri

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Sat

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Sun

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Mon

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Tue

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BULLETIN

Reliability 85%

No gale warning.

No weather risk at the spot

Thursday 18 jun

METEO CONSULT Run : 17/06 18Z Mesh : 1km Updated, 2h ago Update in 52min

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)

15

10

5

0

30

20

10

0

10

5

0

20

15

10

5

0

5

0

0.5

0

3

0

25

20

15

10

75

70

65

60

55

                                    
                                                                         Fri 19
                                                            
                    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 : 17/06 18Z
                Mesh : 1km
                Updated, 2h ago
                Update in 52min

Fri 19

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

120° SE ESE
115° SE ESE
105° E ESE
90° E E
90° E E
95° E E
80° E ENE
75° E ENE
40° NE NE
55° NE NE
45° NE NE
35° NE NNE
30° NE NNE
30° NE NNE
20° N NNE
5° N N
5° N N
5° N N
0° N N
345° N NNW
335° NW NNW
330° NW NNW
325° NW NW
315° NW NW

2 3 1 2 1
2 3 1 2 1
2 3 1 2 1
3 5 1 3 1
2 4 1 2 1
3 5 1 3 1
3 5 1 3 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 10 3 6 2
6 11 3 7 2
7 13 4 8 3
8 14 4 9 3
7 13 4 8 3
6 12 3 7 3
5 10 3 6 2
4 8 2 5 2
4 7 2 4 2
4 7 2 4 2
4 8 2 5 2
4 8 2 5 2

3 5 1 3 1
4 7 2 4 2
4 8 2 5 2
5 9 3 6 2
5 10 3 6 2
5 10 3 6 2
6 11 3 7 2
6 12 3 7 3
7 13 4 8 3
8 14 4 9 3
9 16 4 10 3
9 17 5 11 3
10 19 5 12 3
11 20 6 12 4
12 23 6 14 4
13 24 7 15 4
13 24 7 15 4
12 22 6 14 4
11 20 6 12 4
9 17 5 11 3
8 14 4 9 3
6 12 3 7 3
7 13 4 8 3
8 14 4 9 3

0.2
0.2
0.2
0.2
0.2
0.2
0.2
0.2
0.2
0.2
0.2
0.2
0.2
0.2
0.2
0.2
0.2
0.2
0.2
0.2
0.2
0.2
0.2
0.2

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

355° N N
355° N N
355° N N
355° N N
360° N N
360° N N
360° N N
0° 0 0
0° 0 0
360° N N
360° N N
355° N N
355° N N
355° N N
355° N N
355° N N
5° N N
0° N N
360° N N
360° N N
15° N NNE
15° N NNE
360° N N
360° N N

0.2
0.2
0.2
0.2
0.2
0.2
0.2
0.2
0.2
0.2
0.2
0.2
0.2
0.2
0.2
0.2
0.2
0.2
0.2
0.2
0.2
0.2
0.2
0.2

8
8
8
9
9
9
9
9
9
8
8
8
8
8
9
9
7
8
7
7
5
5
7
7

160
160
160
160
160
160
150
150
140
160
160
160
150
140
130
100
100
110
120
110
110
110
110
120

4.7
2.8
1.7
1.7
2.9
5.0
7.5
9.7
10.9
10.8
9.7
7.9
5.7
3.8
2.4
2.0
2.9
4.8
7.2
9.5
10.9
11.1
10.2
8.6

17 62
17 62
17 62
17 62
17 62
17 62
17 62
17 62
17 62
17 62
17 62
17 62
17 62
17 62
17 63
17 63
17 63
17 63
17 63
17 62
17 62
17 62
17 62
17 63

0
0
0
55
55
65
65
90
90
90
90
90
90
65
40
35
30
35
35
20
30
45
60
70

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
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

5
4.5
4
4
4
4
5
5
5
5
5
10
10
10
15
>20
10
10
10
5
5
4
3
2

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

0
0
0
0
0
0
0
1
2
3
4
4
5
5
6
4
3
1
1
0
0
0
0
0

15 59
15 59
15 59
16 60
16 60
16 60
17 62
17 63
18 64
18 65
19 66
19 67
19 66
20 67
20 68
20 68
20 67
19 66
18 65
18 64
17 63
17 62
16 61
16 60

14 57
14 57
14 58
15 58
15 58
15 59
16 62
18 64
19 67
21 69
21 70
22 72
22 72
22 72
23 74
23 73
22 71
20 68
18 65
17 63
16 61
15 59
15 58
14 57

3 5 1 1 3
3 6 2 2 4
3 6 2 2 4
4 8 2 2 5
4 8 2 2 5
4 8 2 2 5
4 8 2 2 5
3 6 2 2 4
5 9 2 3 6
5 9 2 3 6
5 9 2 3 6
6 11 2 3 7
6 12 3 3 7
8 14 3 4 9
9 16 3 4 10
10 18 3 5 11
9 17 3 5 11
8 15 3 4 9
7 13 3 4 8
6 11 2 3 7
6 11 2 3 7
6 12 3 3 7
7 13 3 4 8
8 15 3 4 9

0.4
0.4
0.4
0.4
0.4
0.4
0.4
0.4
0.4
0.4
0.4
0.4
0.4
0.4
0.4
0.4
0.4
0.4
0.4
0.4
0.4
0.4
0.4
0.4

Forecasts established in local time
Caption Glossary

Expert opinion

A southwesterly, moderate and very variable flow prevails over the whole area.

For Grève de Saint Marc :
No gale warning.

We are 85% sure of the situation, because the high pressure system could move in more quickly than forecast.

Skies changeable to very cloudy. Risk of some spots of rain in the morning, no precipitation in the afternoon. In the evening, lots of good clear periods.
No precipitation. ENE force 2 turning NNE force 3 in the middle of the day then N. Gusts reaching 13 knots from the middle of the day. Smooth sea. Low, fairly long swell from N then short from N in the evening. Visibility reduced by mist temporarily in the middle of the day.

Tides at Saint-Quay-Portrieux

90

Low tide 04h35 1.55m

High tide 10h24 10.98m

87

Low tide 16h53 2.02m

High tide 22h37 11.14m

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

Consult the tides for June

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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

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

Wed

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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

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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

Wed

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

Thu

02

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

Weather beach Grève de Saint Marc

BULLETIN

Wind

Waves

Weather

Temperature

Offshore

Expert opinion

Tides at Saint-Quay-Portrieux

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