Weather Grande Plage - Detailed bulletin - Free 15-day Marine forecasts

Saint-Cast-le-Guildo (22380)Longitude : -2°15 W Latitude : 48°37’,614 N Altitude : 0m

Tue

16

-

- 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

Sun

21

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

Mon

22

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

Tue

23

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

Wed

24

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

Thu

25

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

Fri

26

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

Sat

27

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

Sun

28

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

Mon

29

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

Tue

30

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

BULLETIN

(established in local time)

Reliability 95%

Wind alert - Warning strong breeze offshore.

Tuesday 16 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)

20

15

10

5

0

40

30

20

10

0

10

5

0

25

20

15

10

5

0

10

5

0

1

0.5

0

3

0

20

15

10

65

60

55

50

Wed 17

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

240° SW WSW
245° SW WSW
250° W WSW
255° W WSW
260° W W
260° W W
270° W W
275° W W
280° W WNW
275° W W
285° W WNW
240° SW WSW
210° SW SSW
200° S SSW
215° SW SW
215° SW SW
210° SW SSW
200° S SSW
195° S SSW
195° S SSW
195° S SSW
195° S SSW
195° S SSW
200° S SSW

10 19 5 12 3
11 20 6 12 4
11 21 6 13 4
11 20 6 12 4
10 19 5 12 3
10 19 5 12 3
9 17 5 11 3
9 16 4 10 3
8 14 4 9 3
5 10 3 6 2
4 8 2 5 2
3 5 1 3 1
5 10 3 6 2
6 11 3 7 2
8 14 4 9 3
8 15 4 9 3
8 15 4 9 3
8 15 4 9 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 17 5 11 3

16 30 8 19 5
18 33 9 21 5
18 34 9 21 5
18 33 9 21 5
18 33 9 21 5
18 33 9 21 5
17 32 9 20 5
16 29 8 18 5
15 27 8 17 4
13 25 7 16 4
11 20 6 12 4
9 16 4 10 3
10 19 5 12 3
11 20 6 12 4
13 24 7 15 4
13 25 7 16 4
13 25 7 16 4
13 25 7 16 4
14 26 7 16 4
16 30 8 19 5
17 31 9 19 5
17 31 9 19 5
17 31 9 19 5
16 30 8 19 5

0.6
0.6
0.6
0.6
0.5
0.5
0.5
0.5
0.5
0.4
0.4
0.4
0.4
0.4
0.4
0.4
0.3
0.3
0.3
0.3
0.5
0.4
0.4
0.4

1.2
1.2
1.1
1.1
1
1
1
1
0.9
0.9
0.9
0.8
0.8
0.8
0.8
0.7
0.7
0.7
0.7
0.6
1
0.9
0.9
0.9

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
0.1
0.1
0.1
0.1
0.1
0.1
0.1
0.2
0.2
0.2
0.2

200° S SSW
200° S SSW
200° S SSW
195° S SSW
170° S SSE
195° S SSW
170° S S
180° S S
175° S S
180° S S
180° S S
180° S S
175° S S
195° S SSW
195° S SSW
195° S SSW
190° S SSW
195° S SSW
195° S SSW
195° S SSW
310° NW NW
310° NW NW
310° NW NW
310° NW NW

0.6
0.6
0.6
0.5
0.5
0.5
0.5
0.5
0.4
0.4
0.4
0.4
0.4
0.4
0.3
0.3
0.3
0.3
0.3
0.3
0.4
0.4
0.4
0.3

11
11
11
11
10
7
10
5
10
10
9
9
9
10
10
10
9
9
10
10
9
9
9
9

190
190
190
190
190
180
180
180
170
170
170
170
170
170
160
160
160
150
150
150
90
90
90
80

4.7
5.0
5.7
6.7
7.7
8.5
8.8
8.6
8.1
7.3
6.3
5.5
4.8
4.5
4.7
5.3
6.4
7.4
8.3
8.7
8.6
8.1
7.2
6.2

18 65
18 65
18 65
18 65
18 65
18 65
18 65
18 65
18 65
18 65
18 65
18 65
18 65
18 65
18 65
18 65
18 65
18 65
18 65
18 65
18 65
18 65
18 65
18 65

5
90
90
100
95
100
100
100
100
100
100
95
100
100
90
65
60
55
50
50
70
75
35
75

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

1023
1023
1024
1024
1024
1024
1024
1023
1023
1023
1022
1022
1023
1023
1022
1022
1022
1022
1021
1021
1021
1021
1020
1020

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

14 56
15 59
16 61
17 62
17 63
17 63
18 64
18 64
18 64
18 64
17 63
17 62
16 62
16 61
16 60
15 59
15 59
15 58
14 57
14 57
14 57
14 58
14 58
14 58

12 53
12 54
14 58
16 60
17 62
16 61
18 64
16 60
16 62
16 61
16 61
16 61
14 58
14 57
13 55
12 54
12 54
12 53
11 51
11 51
11 51
11 51
11 52
11 52

17 31 5 9 19
17 31 5 9 19
16 29 5 8 18
15 28 4 8 17
13 25 4 7 16
13 24 4 7 15
12 22 4 6 14
12 22 4 6 14
11 20 4 6 12
11 20 4 6 12
9 16 3 4 10
8 15 3 4 9
8 15 3 4 9
11 20 4 6 12
12 22 4 6 14
13 25 4 7 16
14 26 4 7 16
15 27 4 8 17
16 29 5 8 18
16 30 5 8 19
17 31 5 9 19
17 32 5 9 20
17 32 5 9 20
17 32 5 9 20

1.3
1.3
1.2
1.2
1.1
1.1
1
1
1
0.9
0.9
0.8
0.8
0.8
0.7
0.7
0.7
0.7
0.7
0.7
0.8
0.8
0.8
0.9

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

Expert opinion

A westerly, strong and mostly variable flow prevails over the whole area.

For Grande Plage :
Warning strong breeze offshore.

The reliability of the situation is assessed at 95%.

Sun but cloud increasing in the morning, overcast skies in the afternoon. No precipitation. In the evening, very cloudy skies to overcast.
No precipitation. WSW force 4 in the morning becoming SW force 3 in the evening. Gusts reaching 18 knots in the morning. Slight sea becoming smooth to slight in the middle of the day. Low, fairly long swell from S. Poor visibility becoming excellent in the middle of the day.

Tides at Saint-Cast

38

High tide 02h17 8.72m

Low tide 09h00 4.72m

38

High tide 15h06 8.8m

Low tide 22h14 4.51m

www.shom.fr - © SHOM 2025

Consult the tides for September

Tue

16

-

- 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

Sun

21

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

Mon

22

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

Tue

23

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

Wed

24

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

Thu

25

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

Fri

26

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

Sat

27

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

Sun

28

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

Mon

29

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

Tue

30

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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 Grande Plage

BULLETIN

Wind

Waves

Weather

Temperature

Offshore

Expert opinion

Tides at Saint-Cast