Weather Saint-Cast - Detailed bulletin - Free 15-day Marine forecasts

Saint-Cast-le-Guildo FRALongitude : -2°15’,6 W Latitude : 48°38’,4 N Altitude : 13m

Mon

15

-

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

Tue

16

-

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

Wed

17

-

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

Thu

18

-

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

Fri

19

-

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

Sat

20

-

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

Sun

21

-

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

Mon

22

-

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

Tue

23

-

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

Wed

24

-

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

Thu

25

-

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

Fri

26

-

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

Sat

27

-

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

Sun

28

-

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

Mon

29

-

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

BULLETIN

(established in local time)

Reliability 95%

Wind alert - Warning strong breeze offshore.

Monday 15 december

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

50

40

30

20

10

0

15

10

5

0

30

20

10

0

10

5

0

1

0.5

3

0

15

10

5

60

55

50

45

40

Tue 16

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

160° S SSE
165° S SSE
170° S S
170° S SSE
165° S SSE
160° S SSE
160° S SSE
165° S SSE
170° S S
165° S SSE
170° S S
180° S S
180° S S
190° S S
190° S S
205° SW SSW
235° SW SW
255° W WSW
330° NW NNW
345° N NNW
340° N NNW
350° N NNW
350° N N
355° N N

15 27 8 17 4
15 27 8 17 4
15 27 8 17 4
15 28 8 17 4
15 27 8 17 4
15 27 8 17 4
14 26 7 16 4
15 27 8 17 4
14 26 7 16 4
15 27 8 17 4
12 23 6 14 4
12 22 6 14 4
10 18 5 11 3
9 16 4 10 3
7 13 4 8 3
6 11 3 7 2
4 8 2 5 2
3 5 1 3 1
6 11 3 7 2
9 17 5 11 3
8 15 4 9 3
9 17 5 11 3
12 22 6 14 4
12 23 6 14 4

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
24 45 13 28 6
23 43 12 27 6
24 45 13 28 6
23 43 12 27 6
23 42 12 26 6
21 38 11 24 5
20 37 10 23 5
19 36 10 22 5
17 31 9 19 5
15 27 8 17 4
12 22 6 14 4
11 21 6 13 4
8 15 4 9 3
11 20 6 12 4
13 25 7 16 4
15 27 8 17 4
13 25 7 16 4
17 32 9 20 5
17 32 9 20 5

0.6
0.6
0.6
0.5
0.5
0.5
0.5
0.6
0.6
0.6
0.6
0.6
0.6
0.6
0.6
0.6
0.7
0.7
0.7
0.7
0.8
0.9
0.9
0.9

1.3
1.2
1.2
1.1
1.1
1.1
1.1
1.2
1.2
1.2
1.2
1.2
1.3
1.3
1.3
1.3
1.3
1.3
1.4
1.4
1.6
1.7
1.8
1.8

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

320° NW NW
325° NW NNW
325° NW NW
320° NW NW
320° NW NW
320° NW NW
320° NW NW
320° NW NW
320° NW NW
320° NW NW
320° NW NW
320° NW NW
320° NW NW
320° NW NW
320° NW NW
320° NW NW
320° NW NW
320° NW NW
320° NW NW
320° NW NW
320° NW NW
325° NW NW
325° NW NNW
325° NW NNW

0.5
0.5
0.5
0.5
0.5
0.5
0.5
0.5
0.5
0.5
0.6
0.6
0.6
0.6
0.6
0.6
0.6
0.6
0.7
0.7
0.7
0.8
0.8
0.9

12
12
12
12
12
12
12
13
14
14
14
14
14
14
14
14
14
14
14
14
13
11
11
11

150
160
170
180
190
200
220
240
260
280
290
300
310
310
310
310
310
320
320
280
230
230
230
230

7.0
8.3
9.1
9.2
8.8
7.9
6.7
5.5
4.6
4.1
4.2
5.0
6.3
7.7
8.9
9.5
9.3
8.6
7.4
6.1
4.9
4.1
3.9
4.5

12 53
12 53
12 53
12 53
12 53
12 53
12 53
12 53
12 53
12 53
12 53
12 53
12 53
12 53
12 53
12 53
12 53
12 53
12 53
12 53
12 53
12 53
12 53
12 53

100
100
55
80
95
95
100
100
100
100
100
100
100
100
100
100
100
100
100
100
100
100
100
100

0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0.2
0.5
0.2
0.3
0.4
0.6
0.9
0.8
0.7

-
-
-
-
-
-
-
-
-
-
-

0
0
0
0
0
0
0
0
0
0
0
40
25
30
35
50
55
50
65
70
70
65
60
55

>20
>20
>20
>20
>20
>20
>20
>20
>20
>20
>20
>20
>20
>20
5
5
5
5
5
>20
>20
>20
>20
>20

1005
1005
1004
1004
1004
1004
1004
1003
1004
1004
1004
1004
1005
1005
1005
1005
1005
1006
1007
1008
1009
1010
1011
1012

0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0

11 52
12 53
13 55
13 55
12 54
12 53
12 53
11 52
11 52
11 52
11 51
11 52
11 51
11 51
10 51
10 51
10 51
10 51
10 51
11 51
11 51
11 51
11 51
11 51

7 44
7 44
9 48
8 47
7 45
7 44
7 44
6 43
6 43
6 43
7 44
7 44
7 45
7 45
8 46
8 46
9 47
9 49
8 47
7 45
8 46
8 46
7 45
7 45

23 42 6 12 26
22 41 6 11 25
22 40 6 11 25
22 40 6 11 25
22 40 6 11 25
23 42 6 12 26
23 42 6 12 26
23 43 6 12 27
23 42 6 12 26
22 41 6 11 25
21 38 5 11 24
18 34 5 9 21
17 32 5 9 20
15 28 4 8 17
10 18 3 5 11
8 15 3 4 9
9 17 3 5 11
10 18 3 5 11
12 23 4 6 14
15 27 4 8 17
16 29 5 8 18
14 26 4 7 16
14 26 4 7 16
15 27 4 8 17

2.1
2.1
2
2
2
1.9
1.9
2
2
2
1.9
1.9
1.9
1.9
1.9
1.9
1.9
1.8
1.8
1.9
2
2
2
2

Forecasts established in local time
Last updated 52min ago | Next update in 3h
Caption

Expert opinion

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

For Saint-Cast :
Warning strong breeze offshore.

The reliability of the situation is assessed at 95%.

Very cloudy skies to overcast. No precipitation. In the evening, overcast skies.
No precipitation. S wind force 4 from the middle of the day. Gusts reaching 25 knots in the middle of the day. Slight sea becoming smooth to slight in the evening. Low, fairly long swell from NW. Excellent visibility.

Tides at Saint-Cast

47

High tide 03h17 9.12m

Low tide 09h53 4.24m

49

High tide 15h41 9.24m

Low tide 22h26 4.04m

www.shom.fr - © SHOM 2025

Consult the tides for December

Mon

15

-

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

Tue

16

-

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

Wed

17

-

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

Thu

18

-

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

Fri

19

-

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

Sat

20

-

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

Sun

21

-

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

Mon

22

-

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

Tue

23

-

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

Wed

24

-

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

Thu

25

-

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

Fri

26

-

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

Sat

27

-

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

Sun

28

-

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

Mon

29

-

- 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 board sports area Saint-Cast

BULLETIN

Wind

Waves

Weather

Temperature

Offshore

Expert opinion

Tides at Saint-Cast