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

Weather Risk Briefing

Sun

04

-

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

Mon

05

-

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

Tue

06

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

Wed

07

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

Thu

08

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

Fri

09

-

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

Sat

10

-

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

Sun

11

-

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

Mon

12

-

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

Tue

13

-

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

Wed

14

-

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

Thu

15

-

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

Fri

16

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

Sat

17

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

Sun

18

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

BULLETIN

Reliability 80%

No gale warning.

No weather risk at the spot

Sunday 4 oct

METEO CONSULT Run : 4/10 19Z 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)

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

30

25

20

15

10

5

0

20

15

10

5

0

0.5

0

3

0

25

20

15

10

75

70

65

60

55

50

                                    
                                                                         Mon 5
                                                            
                    21h
                
                    22h
                
                    23h
                
                    00h
                
                    01h
                
                    02h
                
                    03h
                
                    04h
                
                    05h
                
                    06h
                
                    07h
                
                    08h
                
                    09h
                
                    10h
                
                    11h
                
                    12h
                
                    13h
                
                    14h
                
                    15h
                
                    16h
                
                    17h
                
                    18h
                
                    19h
                
                    20h
                
                        Run : 4/10 19Z
                Mesh : 4km
                Updated, 22min ago
                Update imminent

Mon 5

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

30° NE NNE
40° NE NE
45° NE NE
60° NE ENE
60° NE ENE
60° NE ENE
55° NE NE
55° NE ENE
60° NE ENE
60° NE ENE
60° NE ENE
65° NE ENE
70° E ENE
70° E ENE
70° E ENE
65° NE ENE
60° NE ENE
50° NE NE
35° NE NE
30° NE NNE
30° NE NNE
25° NE NNE
20° N NNE
20° N NNE

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

15 28 8 17 4
15 27 8 17 4
14 26 7 16 4
12 23 6 14 4
12 22 6 14 4
12 22 6 14 4
11 21 6 13 4
11 21 6 13 4
11 20 6 12 4
11 20 6 12 4
11 20 6 12 4
10 19 5 12 3
10 19 5 12 3
11 20 6 12 4
11 20 6 12 4
11 20 6 12 4
11 20 6 12 4
11 20 6 12 4
12 22 6 14 4
12 23 6 14 4
13 24 7 15 4
12 23 6 14 4
12 22 6 14 4
11 21 6 13 4

0.4
0.4
0.4
0.4
0.4
0.4
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
0.2
0.2
0.2
0.2
0.2

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

50° NE NE
50° NE NE
50° NE NE
50° NE NE
55° NE NE
55° NE NE
55° NE NE
55° NE NE
50° NE NE
55° NE NE
55° NE NE
55° NE NE
55° NE NE
55° NE NE
55° NE NE
50° NE NE
50° NE NE
50° NE NE
50° NE NE
45° NE NE
45° NE NE
50° NE NE
100° E E
100° E E

0.2
0.2
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
0.2
0.2
0.2
0.2
0.2
0.1
0.2

4
4
4
5
4
5
4
4
4
4
4
4
4
4
4
4
4
5
5
5
5
5
4
3

25
25
25
30
30
30
30
25
25
25
70
70
30
30
30
35
35
30
25
20
60
60
120
80

4.6
5.2
6.1
7.1
7.9
8.3
8.3
7.8
7.1
6.2
5.4
4.9
4.7
5.0
5.7
6.7
7.6
8.3
8.6
8.4
7.8
6.9
6.0
5.1

19 66
19 66
19 66
19 66
19 66
19 66
19 66
19 66
19 66
19 65
19 65
19 65
19 65
19 65
19 65
19 65
19 66
19 66
19 66
19 66
19 66
19 66
19 66
19 66

5
5
5
5
20
20
50
25
35
40
40
40
40
50
50
50
40
30
20
15
10
5
5
10

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

>20
>20
>20
>20
>20
>20
>20
10
10
10
10
5
10
15
15
15
>20
>20
>20
>20
>20
>20
>20
15

1027
1028
1028
1028
1027
1027
1027
1027
1026
1026
1026
1026
1026
1026
1026
1026
1026
1025
1025
1024
1023
1023
1023
1023

0
0
0
0
0
0
0
0
0
0
0
0
0
1
1
2
3
3
3
2
1
0
0
0

16 61
16 61
16 61
17 62
16 60
16 61
15 59
16 60
15 60
15 60
15 59
15 59
15 59
16 61
17 63
18 64
18 65
19 66
19 66
19 66
19 66
18 65
18 64
17 63

13 55
13 56
13 56
14 57
13 55
13 56
12 54
13 56
13 55
13 55
13 55
13 55
13 55
15 58
17 62
19 65
20 68
21 70
21 69
20 68
19 67
18 64
16 61
15 59

12 23 4 6 14
12 23 4 6 14
12 22 4 6 14
12 22 4 6 14
11 20 4 6 12
11 20 4 6 12
11 20 4 6 12
10 19 3 5 12
10 19 3 5 12
10 18 3 5 11
10 18 3 5 11
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
8 15 3 4 9
8 14 3 4 9
9 16 3 4 10
10 18 3 5 11
10 18 3 5 11
10 19 3 5 12
11 20 4 6 12
11 20 4 6 12

0.6
0.6
0.6
0.6
0.6
0.6
0.6
0.5
0.5
0.5
0.5
0.5
0.5
0.5
0.5
0.5
0.4
0.4
0.4
0.4
0.4
0.4
0.4
0.5

Forecasts established in local time
Caption Glossary

Expert opinion

Weather Risk Briefing

High 1031 hPa centered on Wales weakening in a stationary position.

For Grève de l"Isnain :
No gale warning.

We are 80% sure of the situation, because the high pressure system could move in more quickly than forecast.

In the evening, hazy skies.
No precipitation. NNE wind force 3. Gusts reaching 15 knots in the evening. Smooth to slight sea. Low, short swell from NE. Excellent visibility.

Tides at Saint-Quay-Portrieux

46

High tide 00h40 8.83m

Low tide 07h14 4.38m

41

High tide 13h09 8.76m

Low tide 20h09 4.42m

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

Consult the tides for October

Go further

Sun

04

-

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

Mon

05

-

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

Tue

06

-

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

Wed

07

-

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

Thu

08

-

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

Fri

09

-

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

Sat

10

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

Sun

11

-

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

Mon

12

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

Tue

13

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

Wed

14

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

Thu

15

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

Fri

16

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

Sat

17

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

Sun

18

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

Weather beach Grève de l'Isnain

BULLETIN

Wind

Waves

Weather

Temperature

Offshore

Expert opinion

Tides at Saint-Quay-Portrieux

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