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

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Thu

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Fri

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Sat

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Sun

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BULLETIN

(* established in local time)

Reliability 95%

No gale warning.

Wednesday 31 dec

METEO CONSULT Run : 31/12 06Z Mesh : 1km Updated, 3h ago Update in 3h

Wind

Average winds

Gusts

10m above ground level:

Direction

Speed

Gusts

Waves

Total sea (m) (m)

Swell (m) (m)

Total sea (m)

Total wave height (m)

Wind (m)

Swell direction

Swell height (m)

Swell period (s)

Wave length (m)

High tide (m)

Sea temp

Weather

Rain (mm) (mm)

Cloud cover(%)

Amount of precipitation (mm)

Type of precipitation

Precipitation risk (%)

Storm risk.(%)

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

10

5

0

-5

50

40

30

20

10

0

-10

                                    
                                                                         Thu 1
                                                            
                    11h
                
                    12h
                
                    13h
                
                    14h
                
                    15h
                
                    16h
                
                    17h
                
                    18h
                
                    19h
                
                    20h
                
                    21h
                
                    22h
                
                    23h
                
                    00h
                
                    01h
                
                    02h
                
                    03h
                
                    04h
                
                    05h
                
                    06h
                
                    07h
                
                    08h
                
                    09h
                
                    10h
                
                        Run : 31/12 06Z
                Mesh : 1km
                Updated, 3h ago
                Update in 3h

Thu 1

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

105° E ESE
105° E ESE
110° E ESE
105° E ESE
95° E E
95° E E
90° E E
90° E E
110° E ESE
165° S SSE
215° SW SW
215° SW SW
210° SW SSW
205° SW SSW
205° SW SSW
205° SW SSW
210° SW SSW
215° SW SW
215° SW SW
220° SW SW
230° SW SW
230° SW SW
240° SW WSW
245° SW WSW

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

10 19 5 12 -
11 20 6 12 4
14 26 7 16 4
12 22 6 14 4
11 21 6 13 4
11 21 6 13 4
11 21 6 13 4
11 20 6 12 4
9 17 5 11 3
8 15 4 9 3
6 11 - 7 -
8 14 4 9 3
6 12 3 7 3
6 12 3 7 3
7 13 4 8 3
8 15 4 9 3
9 16 4 10 3
9 16 4 10 3
9 17 5 11 -
9 17 5 11 3
10 18 5 11 -
10 19 5 12 -
11 20 6 12 4
12 22 6 14 4

0.3
0.3
0.3
0.3
0.3
0.3
0.3
0.3
0.3
0.2
0.2
0.2
0.2
0.2
0.2
0.2
0.2
0.2
0.1
0.1
0.1
0.2
0.3
0.4

0.7
0.6
0.6
0.6
0.6
0.6
0.6
0.6
0.5
0.5
0.5
0.4
0.4
0.4
0.4
0.3
0.3
0.3
0.3
0.3
0.3
0.4
0.6
0.8

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

30° NE NNE
30° NE NNE
30° NE NNE
25° NE NNE
20° N NNE
15° N NNE
15° N NNE
20° N NNE
25° NE NNE
20° N NNE
15° N NNE
10° N NNE
10° N N
5° N N
5° N N
5° N N
0° N N
0° N N
0° 0 0
355° N N
355° N N
350° N N
345° N NNW
345° N NNW

0.3
0.3
0.3
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
0.1
0.1
0.1
0.1
0.1
0.1
0.2
0.3

5
5
5
5
6
6
6
6
5
6
6
7
7
7
8
8
8
8
9
9
9
8
6
5

30
35
35
40
40
35
30
35
45
50
60
70
80
90
90
100
110
110
120
120
110
60
25
25

3.7
4.8
6.4
8.0
9.3
9.8
9.5
8.5
7.1
5.5
4.1
3.3
-
-
-
-
-
-
10.1
9.4
8.1
6.4
4.8
3.5

9 49
9 49
9 49
9 49
9 49
10 49
10 49
9 49
9 49
9 49
9 49
9 49
9 49
9 49
9 49
9 49
9 49
9 49
9 49
9 49
9 49
9 49
9 49
9 49

0
0
20
5
5
0
10
5
35
45
55
75
65
65
70
55
50
40
50
80
85
85
95
95

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

15
15
>20
>20
>20
>20
>20
>20
>20
>20
>20
>20
>20
>20
>20
>20
>20
>20
>20
>20
>20
>20
>20
>20

1030
1030
1029
1028
1028
1028
1027
1027
1027
1027
1026
1026
1025
1025
1024
1023
1022
1022
1021
1020
1019
1019
1019
1019

0
1
1
1
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0

2 35
3 37
5 41
5 42
6 42
6 42
5 41
4 39
3 38
2 36
2 35
1 34
1 34
1 33
1 33
0 33
0 32
0 0
0 0
0 0
1 33
1 33
1 34
2 35

1 33
3 37
4 40
5 41
5 41
4 39
3 37
1 34
1 35
1 34
0 32
-1 31
-1 31
-1 30
-1 29
-2 29
-2 29
-2 28
-2 28
-2 28
-2 28
-2 28
-2 29
-1 30

11 20 4 6 12
10 19 3 5 12
11 20 4 6 12
10 18 3 5 11
10 18 3 5 11
9 17 3 5 11
9 17 3 5 11
9 17 3 5 11
9 16 3 4 10
7 13 3 4 8
6 11 2 3 7
4 8 2 2 5
5 10 2 3 6
5 10 2 3 6
6 12 3 3 7
8 14 3 4 9
8 14 3 4 9
8 15 3 4 9
8 15 3 4 9
8 15 3 4 9
9 16 3 4 10
10 18 3 5 11
9 17 3 5 11
10 19 3 5 12

0.6
0.5
0.5
0.5
0.5
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
0.4
0.6
0.7

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

Expert opinion

An easterly, moderate and mostly variable flow prevails over the South of the basin. Over the North, it is westerly, strong and mostly variable.

For Grève de Saint Marc :
No gale warning.

The reliability of the situation is assessed at 95%.

Fair weather with mostly clear skies. In the evening, skies with few clouds covering over progressively.
No precipitation. ESE force 3 in the morning turning SSW in the evening. Gusts reaching 14 knots in the middle of the day. Smooth to slight sea becoming smooth in the evening. Low, short swell from NNE. Good visibility becoming good in the middle of the day then excellent.

Tides at Saint-Quay-Portrieux

60

High tide 03h28 9.62m

Low tide 10h09 3.38m

64

High tide 16h05 9.81m

Low tide 22h42 3.08m

www.shom.fr - © SHOM 2025

Consult the tides for December

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Wed

31

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

Thu

01

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

Fri

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

Sat

03

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

Sun

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

Mon

05

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

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

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

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

Mon

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

Tue

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

Wed

14

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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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