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

Saint-Cast-le-Guildo FRALongitude : -2°14’,7 W Latitude : 48°38’,298 N Altitude : 0m

Sat

13

-

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

Sun

14

-

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

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

BULLETIN

(established in local time)

Reliability 80%

Wind alert - Warning strong breeze offshore.

Saturday 13 september

Wind

Average winds

Gusts

10m above ground level:

Direction

Speed

Gusts

Under storms

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

15

10

5

0

40

30

20

10

0

10

5

0

1

0.5

0

3

0

25

20

15

10

5

80

70

60

50

40

Sun 14

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

250° W WSW
260° W W
265° W W
270° W W
270° W W
255° W WSW
245° SW WSW
230° SW SW
220° SW SW
210° SW SSW
205° SW SSW
195° S SSW
185° S S
175° S S
160° S SSE
155° SE SSE
145° SE SE
150° SE SSE
160° S SSE
170° S S
185° S S
200° S SSW
220° SW SW
225° SW SW

11 20 6 12 4
12 23 6 14 4
10 19 5 12 3
10 18 5 11 3
10 19 5 12 3
9 16 4 10 3
7 13 4 8 3
7 13 4 8 3
8 14 4 9 3
6 12 3 7 3
6 12 3 7 3
6 11 3 7 2
6 12 3 7 3
6 12 3 7 3
6 12 3 7 3
7 13 4 8 3
8 15 4 9 3
9 16 4 10 3
10 18 5 11 3
11 21 6 13 4
11 20 6 12 4
12 23 6 14 4
14 26 7 16 4
15 28 8 17 4

21 38 11 24 5
23 43 12 27 6
22 40 11 25 6
22 40 11 25 6
21 39 11 24 6
18 34 9 21 5
15 27 8 17 4
12 22 6 14 4
11 20 6 12 4
11 20 6 12 4
11 20 6 12 4
10 18 5 11 3
10 18 5 11 -
10 18 5 11 -
10 19 5 12 -
11 21 6 13 4
12 23 6 14 4
13 25 7 16 4
17 32 9 20 5
18 33 9 21 5
19 35 10 22 5
22 40 11 25 6
25 47 13 29 6
26 49 14 30 6

>40 >80 >23 >50 >9
>45 >80 >23 >50 >9
>40 >75 >21 >45 >9
>40 >75 >22 >45 >9
>40 >80 >23 >50 >9
>40 >70 >21 >45 >8
- - - - -
- - - - -
- - - - -
- - - - -
- - - - -
- - - - -
- - - - -
- - - - -
- - - - -
- - - - -
- - - - -
- - - - -
- - - - -
- - - - -
- - - - -
- - - - -
- - - - -
- - - - -

0.4
0.4
0.4
0.4
0.4
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
0.4
0.3
0.3
0.3
0.3
0.3

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

0.1
0.1
0.1
0.1
0.1
0.1
0
0
0
0
0
0
0
0
0
0
0.1
0.1
0.2
0.1
0.1
0.1
0.1
0.1

185° S S
185° S S
185° S S
185° S S
185° S S
185° S S
180° S S
180° S S
185° S S
185° S S
185° S S
185° S S
185° S S
185° S S
185° S S
195° S SSW
195° S SSW
195° S SSW
195° S SSW
195° S SSW
195° S SSW
195° S SSW
175° S S
185° S S

0.4
0.4
0.4
0.4
0.4
0.4
0.4
0.4
0.4
0.4
0.4
0.4
0.4
0.4
0.3
0.3
0.3
0.3
0.3
0.3
0.3
0.3
0.3
0.3

9
10
9
5
5
5
5
5
5
5
5
10
9
9
10
9
10
10
10
10
10
9
9
10

140
150
170
160
160
170
160
160
160
160
160
160
160
160
160
160
160
160
140
140
140
140
150
140

4.9
3.5
2.7
2.9
4.2
6.3
8.5
10.1
10.6
10.2
9.0
7.4
5.7
4.2
3.3
3.1
4.0
5.7
7.7
9.4
10.2
10.1
9.2
8.0

19 65
19 65
19 65
19 65
19 65
19 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

25
75
85
60
90
75
50
60
85
60
85
85
80
85
95
95
95
100
100
100
100
100
100
100

0.4
1.9
1.6
0.8
0.7
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0

-
-
-
-
-
-
-
-
-
-
-
-

100
65
65
65
60
45
20
0
0
0
0
0
0
0
0
0
0
0
0
20
25
35
25
25

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

1013
1012
1013
1013
1013
1014
1014
1015
1015
1015
1015
1014
1014
1014
1014
1013
1013
1012
1012
1012
1012
1011
1011
1011

2
1
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
1
1
1
1
1

18 64
18 64
18 64
17 63
16 61
15 60
15 58
14 57
14 56
13 55
13 55
13 55
13 55
13 55
13 56
14 56
14 56
15 58
16 60
16 62
17 63
18 65
19 67
20 69

20 67
16 60
16 61
15 58
13 55
12 54
12 53
11 52
11 51
11 51
10 51
10 51
10 50
10 50
11 51
11 51
11 51
11 52
13 55
13 55
14 58
15 59
17 62
21 70

16 29 5 8 18
13 25 4 7 16
16 30 5 8 19
16 30 5 8 19
15 28 4 8 17
15 27 4 8 17
13 24 4 7 15
12 23 4 6 14
11 21 4 6 13
11 21 4 6 13
10 18 3 5 11
9 16 3 4 10
8 14 3 4 9
9 17 3 5 11
10 19 3 5 12
12 22 4 6 14
13 25 4 7 16
14 26 4 7 16
15 28 4 8 17
15 28 4 8 17
15 27 4 8 17
17 31 5 9 19
17 32 5 9 20
18 33 5 9 21

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

Forecasts established for the approach to the port, up to 1 mile from the coast, in local time
Last updated 25min ago | Next update in 3h
Caption

Expert opinion

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

For Saint-Cast-le-Guildo :
Warning strong breeze offshore.

We are 80% sure of the situation, because hail may not be as easy to predict.

Changeable skies with risk of storms. Showers. In the evening, very cloudy with risk of storms.
Showers with the possibility of hail. W force 4 in the middle of the day becoming force 3 in the evening. Gusts reaching 23 knots in the middle of the day. Smooth to slight sea. Low, fairly long swell from S. Excellent visibility becoming excellent in the evening.

Tides at Saint-Cast

75

Low tide 06h05 2.12m

High tide 11h32 11.18m

66

Low tide 18h23 2.62m

High tide 23h54 10.64m

www.shom.fr - © SHOM 2025

Consult the tides for September

Sat

13

-

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

Sun

14

-

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

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

* +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 port Saint-Cast-le-Guildo

BULLETIN

Wind

Waves

Weather

Temperature

Offshore

Expert opinion

Tides at Saint-Cast