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

Fri

06

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Sat

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Sun

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Mon

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Tue

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Wed

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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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BULLETIN

(* established in local time)

Reliability 85%

No gale warning.

Friday 6 mar

METEO CONSULT Run : 6/03 00Z Mesh : 4km Updated, 22min 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)

15

10

5

0

30

20

10

0

10

5

0

20

15

10

5

0

5

0

1

0.5

0

3

0

15

10

5

55

50

45

40

                                                                         Sat 7
                                                            
                    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 : 6/03 00Z
                Mesh : 4km
                Updated, 22min ago
                Update imminent

Sat 7

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

130° SE SE
85° E E
5° N N
10° N NNE
20° N NNE
25° NE NNE
25° NE NNE
35° NE NE
40° NE NE
50° NE NE
55° NE NE
45° NE NE
40° NE NE
45° NE NE
50° NE NE
30° NE NNE
25° NE NNE
30° NE NNE
30° NE NNE
15° N NNE
350° N N
340° N NNW
5° N N
35° NE NNE

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

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

0.6
0.6
0.5
0.5
0.5
0.5
0.5
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
0.5
0.5
0.5

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

335° NW NNW
335° NW NNW
335° NW NNW
335° NW NNW
335° NW NNW
340° N NNW
340° N NNW
340° N NNW
340° N NNW
340° N NNW
340° N NNW
330° NW NNW
335° NW NNW
325° NW NNW
330° NW NNW
320° NW NW
320° NW NW
320° NW NW
320° NW NW
320° NW NW
320° NW NW
320° NW NW
320° NW NW
325° NW NW

0.6
0.5
0.5
0.5
0.5
0.5
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
0.5
0.5
0.5

5
5
6
6
6
7
7
8
8
8
9
9
9
9
10
10
10
10
10
11
11
11
10
11

130
130
130
130
140
140
140
150
160
160
200
200
200
200
210
210
220
230
240
250
220
220
220
220

7.2
4.9
3.0
1.8
1.7
3.0
5.3
7.9
10.1
11.1
10.9
9.6
7.7
5.5
3.6
2.2
1.9
2.7
4.7
7.1
9.3
10.6
10.7
9.7

10 50
10 50
10 50
10 50
10 50
10 50
10 50
10 50
10 50
10 50
10 50
10 50
10 50
10 50
10 50
10 50
10 50
10 50
10 50
10 50
10 50
10 50
10 50
10 50

100
100
100
100
100
100
100
100
100
100
100
100
100
100
100
100
100
100
100
100
100
100
95
95

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

-
-
-
-
-
-
-
-

50
20
25
45
50
50
55
40
70
60
25
20
0
0
0
25
20
20
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

5
5
15
10
5
4
5
2
2
2
2
1
2
1
2
1
2
1
0.6
0.6
0.5
0.5
0.8
0.5

1025
1025
1025
1025
1024
1024
1024
1024
1024
1024
1024
1024
1024
1024
1024
1023
1023
1023
1022
1023
1023
1023
1023
1023

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

9 47
9 48
9 49
9 48
9 49
9 49
9 49
9 49
9 49
10 49
10 50
10 50
10 51
11 51
11 51
10 51
11 51
10 51
10 50
10 50
10 49
10 49
10 50
10 50

6 42
6 42
6 44
6 44
7 44
7 44
7 44
7 44
7 45
8 46
9 48
10 49
10 51
10 50
11 51
10 50
10 50
10 50
9 49
9 48
9 48
9 48
9 48
9 48

11 21 4 6 13
11 20 4 6 12
11 20 4 6 12
10 19 3 5 12
10 18 3 5 11
10 18 3 5 11
9 17 3 5 11
9 17 3 5 11
8 15 3 4 9
6 12 3 3 7
6 11 2 3 7
5 10 2 3 6
5 9 2 3 6
5 9 2 3 6
5 9 2 3 6
4 8 2 2 5
6 11 2 3 7
6 11 2 3 7
6 12 3 3 7
6 12 3 3 7
4 8 2 2 5
4 7 2 2 4
6 11 2 3 7
5 10 2 3 6

1
0.9
0.9
0.9
0.8
0.8
0.8
0.8
0.8
0.7
0.7
0.7
0.7
0.7
0.7
0.7
0.7
0.7
0.7
0.7
0.8
0.8
0.8
0.8

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

Expert opinion

A northerly, moderate and very variable flow prevails over the South and the East of the basin. Over the North-West, it is southerly, very strong and very variable.

For Grève de Saint Marc :
No gale warning.

The reliability of the situation is assessed at 85%.

In the evening, overcast skies.
Light rain. NNW wind force 3. Gusts reaching 15 knots in the evening. Slight sea. Low, short swell from NNW. Visibility reduced by mist.

Tides at Saint-Quay-Portrieux

94

Low tide 03h07 1.34m

High tide 08h48 11.54m

91

Low tide 15h26 1.43m

High tide 21h06 11.18m

www.shom.fr - © SHOM 2026

Consult the tides for March

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Fri

06

-

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

Sat

07

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

Sun

08

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

Mon

09

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

Tue

10

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

Wed

11

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

Thu

12

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

Fri

13

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

Sat

14

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

Sun

15

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- 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

* +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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