Weather Grève de l'Isnain - Detailed bulletin - Free 15-day Marine forecasts

Saint-Quay-Portrieux (22410)Lon : -2°50’,2836 W Lat : 48°39’,486 N Alt : 0m

Tue

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Wed

11

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Thu

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Fri

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Sat

14

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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

20

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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%

Wind alert - Warning strong breeze offshore.

Tuesday 10 mar

METEO CONSULT Run : 10/03 00Z Mesh : 1km Updated, 1h ago Update in 5h

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

60

50

40

30

20

15

10

5

40

30

20

10

5

0

1

0.5

0

3

0

15

10

5

0

60

55

50

45

40

                                    
                                                                         Wed 11
                                                            
                    15h
                
                    16h
                
                    17h
                
                    18h
                
                    19h
                
                    20h
                
                    21h
                
                    22h
                
                    23h
                
                    00h
                
                    01h
                
                    02h
                
                    03h
                
                    04h
                
                    05h
                
                    06h
                
                    07h
                
                    08h
                
                    09h
                
                    10h
                
                    11h
                
                    12h
                
                    13h
                
                    14h
                
                        Run : 10/03 00Z
                Mesh : 1km
                Updated, 1h ago
                Update in 5h

Wed 11

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

215° SW SW
210° SW SSW
215° SW SW
210° SW SSW
205° SW SSW
200° S SSW
200° S SSW
205° SW SSW
210° SW SSW
205° SW SSW
210° SW SSW
215° SW SW
225° SW SW
235° SW SW
265° W W
275° W W
280° W W
280° W W
270° W W
280° W W
285° W WNW
290° W WNW
300° NW WNW
295° NW WNW

11 21 6 13 4
12 23 6 14 4
13 24 7 15 4
12 23 6 14 4
12 22 6 14 4
12 23 6 14 4
13 25 7 16 4
15 28 8 17 4
17 31 9 19 5
17 32 9 20 5
16 29 8 18 5
13 25 7 16 4
12 22 6 14 4
11 20 6 12 4
13 24 7 15 4
12 22 6 14 4
12 22 6 14 4
11 20 6 12 4
12 22 6 14 4
12 22 6 14 4
13 24 7 15 4
14 26 7 16 4
15 28 8 17 4
15 28 8 17 4

18 34 9 21 5
21 38 11 24 5
22 40 11 25 6
22 41 11 25 6
22 40 11 25 6
22 41 11 25 6
24 45 13 28 6
27 50 14 31 7
29 54 15 34 7
30 55 15 34 7
29 54 15 34 7
25 47 13 29 6
23 43 12 27 6
19 36 10 22 5
24 44 12 27 6
25 46 13 29 6
23 42 12 26 6
21 38 11 24 5
21 39 11 24 6
22 41 11 25 6
24 44 12 27 6
25 47 13 29 6
26 48 13 30 6
25 47 13 29 6

0.3
0.3
0.3
0.3
0.3
0.3
0.3
0.3
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
0.6
0.6
0.6

0.2
0.2
0.1
0.2
0.1
0.1
0.2
0.2
0.2
0.2
0.2
0.2
0.1
0.2
0.2
0.2
0.2
0.2
0.1
0.2
0.3
0.3
0.3
0.3

320° NW NW
320° NW NW
315° NW NW
315° NW NW
305° NW NW
305° NW NW
310° NW NW
310° NW NW
310° NW NW
315° NW NW
320° NW NW
320° NW NW
320° NW NW
320° NW NW
305° NW NW
295° NW WNW
290° W WNW
305° NW NW
305° NW NW
305° NW NW
305° NW NW
305° NW NW
320° NW NW
320° NW NW

0.2
0.2
0.2
0.2
0.2
0.2
0.2
0.2
0.3
0.3
0.3
0.3
0.3
0.3
0.3
0.3
0.4
0.4
0.4
0.4
0.4
0.5
0.5
0.5

11
11
11
11
9
9
11
11
11
12
12
12
12
12
13
12
9
8
8
9
8
12
12
12

140
150
150
150
160
170
170
170
160
200
200
190
210
210
240
220
200
200
210
200
200
210
230
240

5.0
4.2
3.9
4.3
5.3
6.6
7.8
8.7
8.9
8.5
7.6
6.6
5.5
4.6
4.2
4.3
5.0
6.1
7.2
8.0
8.4
8.2
7.6
6.8

10 51
10 51
10 51
10 51
10 51
10 51
10 51
10 51
10 51
10 51
10 51
10 51
10 51
10 51
10 51
10 51
10 51
10 51
10 51
10 51
10 51
10 51
10 51
10 51

85
95
95
95
90
95
100
100
100
100
100
100
100
100
100
100
85
75
70
75
40
60
45
35

0
0
0
0
0
0
0
0
0.6
0.5
0.1
0
0
0.2
0.5
0.5
0
0
0
0
0
0
0
0

-
-
-
-
-
-
-
-
-

0
0
0
0
0
0
0
35
65
80
65
35
25
70
80
65
40
25
40
35
40
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

>20
>20
>20
>20
>20
>20
>20
>20
>20
>20
>20
>20
>20
>20
>20
>20
>20
>20
>20
>20
>20
>20
>20
>20

1016
1016
1015
1015
1015
1015
1014
1014
1013
1013
1012
1012
1012
1011
1011
1012
1013
1014
1015
1016
1017
1017
1018
1019

1
1
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
1
2
2
2
2

13 55
13 55
13 55
12 53
11 52
11 51
11 51
11 51
10 51
10 51
11 51
11 52
11 53
12 53
11 53
11 52
10 51
10 50
10 50
10 50
10 51
11 51
11 52
11 52

10 49
11 51
10 49
8 47
7 45
6 44
6 42
5 42
5 41
5 41
5 42
7 44
7 45
8 46
7 45
7 44
6 44
6 43
6 43
8 46
8 47
10 49
8 47
11 51

11 20 4 6 12
12 23 4 6 14
14 26 4 7 16
16 29 5 8 18
16 29 5 8 18
17 31 5 9 19
18 33 5 9 21
19 35 5 10 22
19 36 5 10 22
21 39 6 11 24
21 38 5 11 24
18 34 5 9 21
16 29 5 8 18
13 25 4 7 16
13 25 4 7 16
16 29 5 8 18
17 31 5 9 19
16 29 5 8 18
16 30 5 8 19
17 31 5 9 19
16 30 5 8 19
18 33 5 9 21
20 37 5 10 23
18 34 5 9 21

0.6
0.6
0.7
0.7
0.8
0.8
0.9
1
1.1
1.2
1.1
1.1
1
1
1
1.1
1.2
1.2
1.2
1.3
1.4
1.5
1.5
1.5

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

Expert opinion

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

For Grève de l"Isnain :
Warning strong breeze offshore.

The reliability of the situation is assessed at 85%.

Very cloudy skies to overcast. No precipitation. In the evening, overcast skies.
Drizzle in the early hours. SSW force 4 in the middle of the day becoming force 5 in the evening. Gusts reaching 29 knots in the evening. Smooth to slight sea. Low, fairly long swell from NW. Excellent visibility.

Tides at Saint-Quay-Portrieux

48

Low tide 04h50 3.42m

High tide 10h29 9.19m

41

Low tide 16h59 3.88m

High tide 22h44 8.88m

www.shom.fr - © SHOM 2026

Consult the tides for March

Go further

Tue

10

-

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

Wed

11

-

- 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

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

Fri

20

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

Sat

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

Sun

22

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

Mon

23

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

Tue

24

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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 l'Isnain

BULLETIN

Wind

Waves

Weather

Temperature

Offshore

Expert opinion

Tides at Saint-Quay-Portrieux

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