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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Mon

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BULLETIN

Reliability 90%

No gale warning.

No weather risk at the spot

Thursday 28 may

METEO CONSULT Run : 27/05 00Z Mesh : 1km Updated, 7h ago Update imminent

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)

20

15

10

5

0

30

20

10

0

10

5

0

20

15

10

5

0

10

5

0

0.5

0

3

0

40

30

20

10

100

90

80

70

60

                                                                         Thu 28
                                                            
                    00h
                
                    01h
                
                    02h
                
                    03h
                
                    04h
                
                    05h
                
                    06h
                
                    07h
                
                    08h
                
                    09h
                
                    10h
                
                    11h
                
                    12h
                
                    13h
                
                    14h
                
                    15h
                
                    16h
                
                    17h
                
                    18h
                
                    19h
                
                    20h
                
                    21h
                
                    22h
                
                    23h
                
                        Run : 27/05 00Z
                Mesh : 1km
                Updated, 7h ago
                Update imminent

Thu 28

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

255° W WSW
230° SW SW
230° SW SW
195° S SSW
220° SW SW
180° S S
130° SE SE
140° SE SE
145° SE SE
115° SE ESE
205° SW SSW
105° E ESE
105° E ESE
95° E E
100° E ESE
115° SE ESE
125° SE SE
185° S S
310° NW NW
310° NW NW
330° NW NNW
330° NW NNW
325° NW NW
320° NW NW

3 6 2 4 2
3 6 2 4 2
4 7 2 4 2
3 5 1 3 1
3 6 2 4 2
2 3 1 2 1
2 4 1 2 1
4 7 2 4 2
3 6 2 4 2
2 4 1 2 1
1 1 0 1 1
3 6 2 4 2
3 6 2 4 2
2 4 1 2 1
5 9 3 6 2
5 10 3 6 2
4 8 2 5 2
1 1 0 1 1
2 4 1 2 1
3 5 1 3 1
6 11 3 7 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
8 14 4 9 3
7 13 4 8 3
7 13 4 8 3
8 14 4 9 3
7 13 4 8 3
10 18 5 11 3
10 19 5 12 3
8 14 4 9 3
6 12 3 7 3
8 14 4 9 3
8 15 4 9 3
8 14 4 9 3
10 19 5 12 3
11 21 6 13 4
12 22 6 14 4
11 20 6 12 4
15 27 8 17 4
12 23 6 14 4
13 25 7 16 4
16 29 8 18 5
14 26 7 16 4
12 23 6 14 4

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
0.1
0.1
0.1
0.1
0.1
0.1
0
0.1

0° N N
5° N N
0° 0 0
5° N N
10° N N
10° N N
15° N NNE
15° N NNE
10° N NNE
10° N N
10° N N
5° N N
5° N N
10° N N
10° N N
10° N N
10° N N
10° N NNE
5° N N
20° N NNE
20° N NNE
10° N N
10° N N
10° N NNE

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
0.1
0.1
0.1
0.1
0.1
0.1
0.2
0.2
0.2
0.2

8
8
6
6
6
5
5
5
5
6
7
8
8
6
6
6
6
5
5
5
3
3
4
4

120
120
120
130
120
120
120
120
120
120
110
110
110
110
120
120
60
60
90
70
50
90
90
90

3.3
3.9
5.2
6.9
8.4
9.4
9.6
9.0
7.8
6.4
4.9
3.7
3.1
3.3
4.4
6.1
7.8
9.2
9.8
9.6
8.6
7.1
5.5
4.1

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 63
18 64
18 64
18 64
18 64
18 64
18 64
18 64
18 64
18 64
18 64
18 64

15
15
5
5
45
70
70
25
45
100
75
60
65
60
65
40
40
25
10
30
35
40
35
30

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

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

50
50
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
>20
>20
>20
>20
>20
>20
>20
>20
>20
>20
>20
>20
>20
>20
>20
>20
>20
>20
>20
>20
>20
>20
>20

1020
1020
1020
1020
1020
1020
1020
1020
1020
1020
1021
1021
1021
1021
1021
1020
1020
1020
1020
1020
1020
1020
1021
1021

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

20 68
20 67
18 65
18 64
18 64
18 65
18 64
18 64
19 67
21 70
23 73
24 75
25 76
26 79
27 80
28 83
29 84
29 84
29 83
27 80
24 75
21 70
19 67
18 65

22 72
18 65
17 62
17 62
17 62
18 64
17 63
17 62
19 65
25 76
26 80
28 83
30 86
33 91
33 92
35 95
35 96
37 99
36 97
33 91
27 80
23 74
17 63
16 61

6 12 3 3 7
5 9 2 3 6
3 6 2 2 4
2 4 1 1 2
3 6 2 2 4
2 4 1 1 2
3 6 2 2 4
7 13 3 4 8
5 9 2 3 6
3 6 2 2 4
4 7 2 2 4
8 14 3 4 9
7 13 3 4 8
6 11 2 3 7
9 16 3 4 10
8 15 3 4 9
7 13 3 4 8
4 8 2 2 5
5 9 2 3 6
3 5 1 1 3
9 16 3 4 10
8 15 3 4 9
9 16 3 4 10
10 19 3 5 12

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
0.3
0.3
0.3
0.3
0.3
0.3

Forecasts established in local time
Caption Glossary

Expert opinion

An easterly and very variable flow prevails over the North and the East of the basin. Over the South-West, it is southerly, weak and very variable.

For Grève de Saint Marc :
No gale warning.

The reliability of the situation is assessed at 90%.

Skies changeable to very cloudy. No precipitation. In the evening, relatively clear skies becoming changeable.
ESE force 2 in the morning turning NNW force 3 in the evening. Gusts reaching 16 knots in the evening. Smooth sea. Low, short swell from NNE. Excellent visibility becoming excellent in the middle of the day.

Tides at Saint-Quay-Portrieux

62

High tide 05h40 9.64m

Low tide 12h19 3.1m

65

High tide 18h09 9.86m

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

Consult the tides for May

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Thu

28

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

Fri

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

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Sun

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Wed

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Thu

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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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