Weather L'Ile de Groix-Les Grands Sables - Detailed bulletin - Free 15-day Marine forecasts

Groix (56590)Longitude : -3°28’,0002 W Latitude : 47°37’,998 N Altitude : 0m

Sat

06

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

Sun

07

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

Mon

08

-

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

Tue

09

-

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

Wed

10

-

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

Thu

11

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

Fri

12

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

Sat

13

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

Sun

14

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

Mon

15

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

Tue

16

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

Wed

17

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

Thu

18

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

Fri

19

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

Sat

20

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

BULLETIN

(established in local time)

Reliability 90%

Wind alert - Warning strong breeze offshore.

Saturday 6 september

Wind

Average winds

Gusts

10m above ground level:

Direction

Speed

Gusts

Waves

Total sea (m) (m)

Swell height (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(%)

Visibility(km)

Pressure(hPa)

UV

Temperature

Air temp

Perceived temp

Air temp

Perceived temp

Offshore

Offshore wind

Offshore sea (m)

30

20

10

0

60

50

40

30

20

10

0

15

10

5

0

40

30

20

10

0

10

5

0

1.5

1

0.5

3

0

30

25

20

15

10

5

80

70

60

50

40

Sun 7

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

95° E E
85° E E
95° E E
100° E E
105° E ESE
105° E ESE
105° E ESE
100° E ESE
105° E ESE
110° E ESE
110° E ESE
110° E ESE
110° E ESE
120° SE ESE
125° SE SE
130° SE SE
135° SE SE
135° SE SE
140° SE SE
140° SE SE
135° SE SE
130° SE SE
130° SE SE
120° SE ESE

9 17 5 11 3
9 17 5 11 3
12 22 6 14 4
13 24 7 15 4
14 26 7 16 4
15 28 8 17 4
16 30 8 19 5
17 31 9 19 5
18 33 9 21 5
18 33 9 21 5
18 33 9 21 5
18 33 9 21 5
18 34 9 21 5
18 33 9 21 5
17 31 9 19 5
16 30 8 19 5
15 28 8 17 4
13 24 7 15 4
11 21 6 13 4
10 18 5 11 3
8 15 4 9 3
8 14 4 9 3
6 12 3 7 3
4 8 2 5 2

13 24 7 15 4
13 25 7 16 4
16 30 8 19 5
18 33 9 21 5
21 38 11 24 5
22 40 11 25 6
23 43 12 27 6
23 43 12 27 6
24 45 13 28 6
25 47 13 29 6
25 47 13 29 6
25 47 13 29 6
26 48 13 30 6
27 50 14 31 7
26 48 13 30 6
25 47 13 29 6
24 44 12 27 6
23 42 12 26 6
20 37 10 23 5
17 32 9 20 5
15 28 8 17 4
12 23 6 14 4
11 21 6 13 4
9 16 4 10 3

0.9
0.9
0.9
0.9
0.9
0.9
0.9
0.8
0.9
0.9
1
1.1
1.1
1.1
1.1
1.1
1.1
1
0.9
0.8
0.7
0.7
0.7
0.7

1.8
1.8
1.7
1.7
1.7
1.7
1.7
1.6
1.7
1.8
2
2.1
2.1
2.1
2.1
2.1
2.1
1.9
1.7
1.5
1.4
1.4
1.5
1.5

0.1
0.2
0.2
0.3
0.4
0.5
0.6
0.5
0.6
0.6
0.7
0.8
0.8
0.8
0.8
0.8
0.7
0.5
0.3
0.1
0.1
0
0
0

250° W WSW
250° W WSW
250° W WSW
250° W WSW
250° W WSW
250° W WSW
245° SW WSW
240° SW WSW
235° SW SW
230° SW SW
230° SW SW
225° SW SW
225° SW SW
215° SW SW
215° SW SW
205° SW SSW
195° S SSW
190° S S
185° S S
185° S S
180° S S
180° S S
180° S S
185° S S

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

8
8
8
8
8
8
8
8
8
8
8
8
8
7
7
7
6
6
6
6
6
6
6
6

130
120
120
120
110
100
100
90
90
80
70
70
45
50
50
50
60
60
70
70
70
70
70
70

3.5
4.2
4.6
4.6
4.2
3.6
2.8
2.0
1.5
1.5
1.9
2.6
3.5
4.4
4.9
5.0
4.7
4.0
3.0
2.1
1.4
1.2
1.4
2.0

18 65
18 65
18 64
18 64
18 64
18 64
17 63
18 64
18 64
18 64
18 64
18 64
18 64
18 64
18 64
18 64
18 64
18 64
18 64
18 64
18 64
18 64
18 64
18 64

5
15
5
5
5
5
10
10
5
5
5
5
5
5
5
10
10
10
5
10
10
10
15
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
0
0
0
0
0
0
0
0
0

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

1019
1018
1018
1017
1016
1016
1015
1015
1014
1014
1013
1012
1011
1010
1010
1009
1008
1008
1008
1008
1007
1007
1007
1007

0
0
0
0
0
0
0
0
1
3
4
5
6
5
4
3
1
1
0
0
0
0
0
0

15 59
14 57
14 57
14 57
14 57
14 57
14 57
15 59
16 61
18 64
19 66
20 68
21 70
22 72
22 72
22 72
21 71
21 70
20 68
19 67
18 65
18 64
18 64
18 64

12 54
11 51
10 50
9 49
9 48
9 48
9 47
10 50
13 55
15 60
18 64
23 73
24 74
25 77
24 76
22 72
22 72
21 70
20 68
16 60
15 60
15 59
15 60
16 60

11 21 4 6 13
11 21 4 6 13
14 26 4 7 16
16 30 5 8 19
17 32 5 9 20
18 34 5 9 21
20 37 5 10 23
20 37 5 10 23
20 37 5 10 23
21 39 6 11 24
21 39 6 11 24
22 40 6 11 25
21 39 6 11 24
21 39 6 11 24
19 36 5 10 22
19 36 5 10 22
17 32 5 9 20
16 30 5 8 19
15 27 4 8 17
12 23 4 6 14
10 19 3 5 12
9 17 3 5 11
8 14 3 4 9
5 10 2 3 6

1
1
1
1
1.1
1.2
1.3
1.3
1.4
1.4
1.5
1.5
1.5
1.5
1.5
1.5
1.5
1.4
1.4
1.3
1.2
1.1
1.1
1

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

Expert opinion

An easterly flow prevails over the South-East of the basin. Over the West and the North, it is southwesterly, moderate and mostly variable.

For L"Ile de Groix-Les Grands Sables :
Warning strong breeze offshore.

The reliability of the situation is assessed at 90%.

Hazy skies. No precipitation. In the evening, hazy cloud thickening.
No precipitation. ESE force 5 in the morning becoming SE force 4 in the evening. Gusts reaching 27 knots in the middle of the day. Slight sea. Low, fairly long swell from SW. Excellent visibility becoming excellent in the evening.

Tides at Port-Tudy

72

High tide 04h36 4.64m

Low tide 10h41 1.45m

80

High tide 16h47 5.06m

Low tide 23h02 1.15m

www.shom.fr - © SHOM 2025

Consult the tides for September

Sat

06

-

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

Sun

07

-

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

Mon

08

-

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

Tue

09

-

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

Wed

10

-

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

Thu

11

-

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

Fri

12

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

Sat

13

-

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

Sun

14

-

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

Mon

15

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

Tue

16

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

Wed

17

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

Thu

18

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

Fri

19

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

Sat

20

-

- 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 L'Ile de Groix-Les Grands Sables

BULLETIN

Wind

Waves

Weather

Temperature

Offshore

Expert opinion

Tides at Port-Tudy