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

Thu

21

-

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

Fri

22

-

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

Sat

23

-

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

Sun

24

-

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

Mon

25

-

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

Tue

26

-

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

Wed

27

-

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

Thu

28

-

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

Fri

29

-

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

Sat

30

-

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

Sun

31

-

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

Mon

01

-

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

Tue

02

-

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

Wed

03

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

Thu

04

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

BULLETIN

(established in local time)

Reliability 85%

No gale warning.

Thursday 21 august

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

30

20

10

0

10

5

0

1

0.5

0

3

0

25

20

15

10

80

75

70

65

60

55

Fri 22

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

335° NW NNW
345° N NNW
355° N N
355° N N
5° N N
10° N N
10° N N
15° N NNE
30° NE NNE
35° NE NNE
40° NE NE
40° NE NE
40° NE NE
30° NE NNE
25° NE NNE
20° N NNE
345° N NNW
335° NW NNW
5° N N
5° N N
25° NE NNE
30° NE NNE
0° N N
0° N N

10 19 5 12 3
11 20 6 12 4
12 22 6 14 4
12 22 6 14 4
11 21 6 13 4
10 19 5 12 3
10 18 5 11 3
11 20 6 12 4
10 18 5 11 3
9 16 4 10 3
8 14 4 9 3
7 13 4 8 3
5 10 3 6 2
4 8 2 5 2
4 7 2 4 2
3 5 1 3 1
2 3 1 2 1
1 2 1 1 1
1 1 0 1 1
1 2 1 1 1
2 3 1 2 1
2 4 1 2 1
5 9 3 6 2
6 12 3 7 3

16 30 8 19 5
17 31 9 19 5
18 34 9 21 5
18 34 9 21 5
18 33 9 21 5
17 32 9 20 5
16 30 8 19 5
16 30 8 19 5
16 29 8 18 5
13 25 7 16 4
12 23 6 14 4
11 21 6 13 4
10 18 5 11 3
8 14 4 9 3
6 11 3 7 -
5 10 3 6 2
5 10 3 6 2
4 8 2 5 2
5 10 3 6 2
6 11 3 7 2
7 13 4 8 3
6 11 3 7 2
9 17 5 11 3
11 20 6 12 4

0.3
0.3
0.4
0.4
0.5
0.5
0.5
0.5
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

0.7
0.7
0.8
0.9
1
1
1
1
0.8
0.7
0.7
0.6
0.6
0.6
0.5
0.5
0.5
0.4
0.4
0.4
0.4
0.4
0.4
0.4

0.3
0.3
0.4
0.4
0.4
0.4
0.4
0.4
0.4
0.2
0.2
0.1
0.1
0.1
0
0
0
0
0
0
0
0
0
0

35° NE NE
210° SW SSW
205° SW SSW
205° SW SSW
205° SW SSW
205° SW SSW
205° SW SSW
205° SW SSW
205° SW SSW
210° SW SSW
215° SW SW
210° SW SSW
210° SW SSW
210° SW SSW
205° SW SSW
205° SW SSW
205° SW SSW
205° SW SSW
200° S SSW
195° S SSW
195° S SSW
200° S SSW
195° S SSW
200° S SSW

0.1
0.1
0.1
0.1
0.2
0.2
0.2
0.1
0.1
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

3
3
3
3
4
4
3
3
4
3
3
3
3
3
3
3
4
4
3
4
9
9
9
9

15
10
15
20
20
20
20
20
20
20
15
15
15
180
160
160
150
150
150
150
150
150
150
150

4.5
6.4
8.5
10.1
10.8
10.4
9.3
7.5
5.6
3.9
2.7
2.3
3.1
4.9
7.2
9.4
10.7
10.8
10.0
8.4
6.5
4.5
3.1
2.4

20 67
20 67
20 67
20 67
20 67
20 67
20 67
20 67
20 67
19 67
19 67
19 67
19 67
19 67
19 67
19 67
19 67
19 67
19 67
19 67
19 67
19 67
20 67
20 67

0
0
80
65
80
80
85
85
60
60
60
70
45
55
60
55
85
90
90
85
80
35
35
35

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
25
20
0
0
0
0
0
0
0
0
0
25
30
30
20
20
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

1017
1018
1018
1018
1018
1018
1018
1019
1020
1020
1020
1020
1020
1020
1020
1020
1021
1021
1021
1021
1022
1022
1022
1022

3
2
2
1
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
1
1
4
5
6

20 68
20 67
19 65
19 65
19 66
19 65
18 65
18 65
18 64
17 63
17 63
17 62
16 61
16 61
16 61
16 60
16 60
16 60
16 61
17 63
18 64
19 65
19 66
19 67

24 76
23 73
18 64
15 60
16 61
16 61
15 59
15 58
15 58
14 58
14 58
14 58
14 58
14 58
15 58
15 58
15 59
15 59
16 61
18 64
18 65
21 70
22 72
23 73

12 23 4 6 14
13 25 4 7 16
14 26 4 7 16
14 26 4 7 16
14 26 4 7 16
14 26 4 7 16
14 26 4 7 16
13 24 4 7 15
13 24 4 7 15
11 21 4 6 13
10 19 3 5 12
10 18 3 5 11
8 15 3 4 9
7 13 3 4 8
6 11 2 3 7
5 10 2 3 6
4 8 2 2 5
4 7 2 2 4
3 6 2 2 4
3 6 2 2 4
3 5 1 1 3
2 3 1 1 2
3 5 1 1 3
4 8 2 2 5

0.6
0.7
0.7
0.7
0.7
0.7
0.6
0.6
0.6
0.5
0.5
0.4
0.4
0.4
0.4
0.3
0.3
0.3
0.3
0.3
0.3
0.3
0.3
0.3

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

Expert opinion

A northerly and mostly variable flow prevails over the whole area.

For Grande Plage :
No gale warning.

We are 85% sure of the situation, because the atmosphere might not be as stable as forecast.

Clear skies becoming somewhat cloudy. In the evening, very cloudy.
Chance of light rain. N wind force 4 from the middle of the day. Gusts reaching 18 knots. Smooth to slight sea. Low, short swell from SSW. Excellent visibility.

Tides at Saint-Cast

67

Low tide 00h57 3.07m

High tide 06h44 10.22m

73

Low tide 13h22 2.98m

High tide 19h05 10.82m

www.shom.fr - © SHOM 2025

Consult the tides for August

Thu

21

-

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

Fri

22

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

Sat

23

-

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

Sun

24

-

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

Mon

25

-

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

Tue

26

-

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

Wed

27

-

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

Thu

28

-

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

Fri

29

-

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

Sat

30

-

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

Sun

31

-

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

Mon

01

-

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

Tue

02

-

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

Wed

03

-

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

Thu

04

-

- 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