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

30

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Sat

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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

06

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Sat

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Sun

08

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Mon

09

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Tue

10

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Wed

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Thu

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BULLETIN

(* established in local time)

Reliability 80%

Wind alert - Warning moderate gale offshore.

Friday 30 jan

METEO CONSULT Run : 30/01 00Z 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)

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)

40

30

20

10

0

70

60

50

40

30

20

10

20

15

10

5

0

40

30

20

10

0

10

5

0

1

0.5

9

6

3

0

15

10

5

0

55

50

45

40

35

                                    
                                                                         Sat 31
                                                            
                    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 : 30/01 00Z
                Mesh : 1km
                Updated, 3h ago
                Update in 3h

Sat 31

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

185° S S
195° S SSW
170° S S
200° S SSW
215° SW SW
230° SW SW
230° SW SW
235° SW SW
230° SW SW
220° SW SW
225° SW SW
220° SW SW
215° SW SW
215° SW SW
210° SW SSW
215° SW SW
220° SW SW
215° SW SW
210° SW SSW
215° SW SSW
205° SW SSW
205° SW SSW
205° SW SSW
205° SW SSW

12 22 6 14 4
14 26 7 16 4
16 30 8 19 5
16 30 8 19 5
17 32 9 20 5
18 34 9 21 5
16 29 8 18 5
15 28 8 17 4
13 24 7 15 4
11 21 6 13 4
11 20 6 12 4
10 18 5 11 3
9 17 5 11 3
10 18 5 11 3
9 17 5 11 3
9 17 5 11 3
9 17 5 11 3
9 16 4 10 3
9 17 5 11 3
9 16 4 10 3
8 14 4 9 3
8 14 4 9 3
8 14 4 9 3
8 14 4 9 3

22 40 11 25 6
26 48 13 30 6
30 55 15 34 7
31 57 16 35 7
33 62 17 39 8
34 63 18 39 8
33 62 17 39 8
30 55 15 34 7
27 50 14 31 7
24 45 13 28 6
22 41 11 25 6
21 38 11 24 5
19 36 10 22 5
19 35 10 22 5
18 33 9 21 5
18 33 9 21 5
18 33 9 21 5
15 27 8 17 4
16 29 8 18 5
15 28 8 17 4
14 26 7 16 4
13 24 7 15 4
13 24 7 15 4
14 26 7 16 4

0.6
0.7
0.8
0.8
0.8
0.9
0.8
0.8
0.9
0.9
0.9
0.9
0.8
0.8
0.8
0.7
0.7
0.7
0.6
0.6
0.7
0.6
0.6
0.6

0.3
0.3
0.3
0.3
0.3
0.5
0.3
0.3
0.1
0.1
0
0
0
0
0
0
0
0.1
0.1
0.1
0.3
0.2
0.2
0.3

350° N N
350° N N
355° N N
355° N N
355° N N
355° N N
355° N N
355° N N
350° N N
350° N N
355° N N
355° N N
355° N N
355° N N
355° N N
350° N N
350° N N
350° N N
350° N N
350° N N
350° N N
350° N N
350° N N
355° N N

0.5
0.6
0.7
0.7
0.8
0.7
0.7
0.8
0.9
0.9
0.9
0.9
0.8
0.8
0.8
0.7
0.7
0.7
0.6
0.6
0.6
0.6
0.6
0.6

13
14
14
14
14
15
15
14
14
13
13
13
13
13
13
13
13
13
13
13
13
13
13
13

190
210
220
250
270
200
260
280
290
280
280
280
280
280
280
280
270
270
270
260
190
210
230
190

3.3
3.5
4.6
6.2
7.8
9.1
9.6
9.4
8.5
7.0
5.5
4.1
3.3
3.1
3.9
5.5
7.3
9.0
10.0
10.1
9.4
8.0
6.2
4.5

9 47
9 47
9 47
9 47
9 47
9 47
9 48
9 47
9 47
9 47
9 47
9 47
9 47
9 47
9 47
9 47
9 47
9 47
9 47
9 47
9 47
9 47
9 47
9 47

100
100
100
80
65
80
80
65
55
30
45
50
75
65
60
50
35
45
55
25
10
30
60
60

1.9
5.8
0.4
0.4
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0

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

100
100
65
60
40
25
35
30
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
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

989
988
986
985
985
985
986
987
987
988
989
989
990
990
991
991
992
992
993
993
993
994
995
996

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

9 48
10 49
10 50
11 52
11 52
10 51
9 49
9 47
8 46
7 45
7 45
7 44
6 44
6 43
6 43
6 43
6 42
5 42
5 42
5 41
5 41
5 41
5 41
6 43

5 41
5 42
5 41
7 45
7 44
6 43
5 41
4 39
4 38
4 38
3 38
3 38
3 38
3 37
3 37
3 37
2 36
2 36
2 36
2 36
2 36
2 36
2 36
4 39

20 37 5 10 23
21 39 6 11 24
22 41 6 11 25
19 36 5 10 22
20 37 5 10 23
22 41 6 11 25
21 39 6 11 24
21 38 5 11 24
18 34 5 9 21
17 32 5 9 20
16 30 5 8 19
16 29 5 8 18
15 28 4 8 17
15 28 4 8 17
15 27 4 8 17
14 26 4 7 16
14 26 4 7 16
13 25 4 7 16
13 25 4 7 16
13 25 4 7 16
12 22 4 6 14
12 22 4 6 14
11 21 4 6 13
11 21 4 6 13

1.3
1.4
1.5
1.7
1.7
1.8
1.8
1.8
1.9
1.9
1.8
1.6
1.5
1.4
1.4
1.4
1.3
1.3
1.3
1.2
1.2
1.2
1.2
1.1

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

Expert opinion

Low 973 hPa centered to the South-West of Ireland moving at 12 knots to the East and rising to 981 hPa to be centered on Wales.

For Grève de Saint Marc :
Warning moderate gale offshore.

The reliability of the situation is assessed at 80%.

Overcast in the morning, skies clearing in the afternoon. Some light rain in the morning, heavy showers dying away in the afternoon. In the evening, cloudy spells, sometimes dense.
Possibility of showers S force 4 becoming SSW force 5 in the middle of the day then SW force 4. Gusts reaching 34 knots in the middle of the day. Smooth to slight sea becoming slight in the middle of the day. Low, long swell from N. Excellent visibility.

Tides at Saint-Quay-Portrieux

58

High tide 04h28 9.47m

Low tide 11h11 3.26m

65

High tide 17h11 9.66m

Low tide 23h40 3.09m

www.shom.fr - © SHOM 2026

Consult the tides for January

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Fri

30

-

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

Sat

31

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

Sun

01

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

Mon

02

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

Tue

03

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

Wed

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

Thu

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

Fri

06

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

Sat

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

Sun

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

Mon

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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

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

Thu

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

Fri

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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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