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

Saint-Cast-le-Guildo FRALon : -2°14’,724 W Lat : 48°38’,442 N Alt : 2m

Weather Risk Briefing

Thu

13

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

Fri

14

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Sat

15

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Sun

16

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Mon

17

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Tue

18

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Wed

19

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Thu

20

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Fri

21

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Sat

22

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Sun

23

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Mon

24

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Tue

25

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Wed

26

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Thu

27

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BULLETIN

Reliability 55%

No gale warning.

Marine wind risk

Wednesday 19 aug

METEO CONSULT Run : 12/08 12Z Mesh : 19km Updated, 12h ago Update imminent

Wind

Average winds

Gusts

10m above ground level:

Direction

Speed

Gusts

Waves

Total sea (m) (m)

Swell (m) (m)

legend.title.wave_height

Total sea (m)

legend.title.wind_sea

Wind (m)

legend.title.swell

Swell direction

Swell height (m)

Swell period (s)

Wave length (m)

High tide (m)

Sea temp

Weather

Rain (mm) (mm)

Clouds:

Cloud cover (%)

Precipitation:

Amount of precipitation (mm)

Type of precipitation

Risks:

Precipitation risk (%)

Storm risk. (%)

Brightness:

Visibility (km)

Pressure (hPa)

UV

Temperature

Air temp

Perceived temp

Air temp

Perceived temp

20

15

10

5

30

20

10

5

0

20

15

10

5

10

5

0

5

0

3

0

30

25

20

15

10

80

70

60

50

                                                                         Wed 19
                                                            
                    00h
                
                    01h
                
                    02h
                
                    03h
                
                    04h
                
                    05h
                
                    06h
                
                    07h
                
                    08h
                
                    09h
                
                    10h
                
                    11h
                
                    12h
                
                    13h
                
                    14h
                
                    15h
                
                    16h
                
                    17h
                
                    18h
                
                    19h
                
                    20h
                
                    21h
                
                    22h
                
                    23h
                
                        Run : 12/08 12Z
                Mesh : 19km
                Updated, 12h ago
                Update imminent

Wed 19

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

300° NW WNW
295° NW WNW
290° W WNW
290° W WNW
290° W WNW
290° W WNW
290° W WNW
285° W WNW
285° W WNW
290° W WNW
295° NW WNW
300° NW WNW
305° NW NW
310° NW NW
310° NW NW
315° NW NW
320° NW NW
320° NW NW
325° NW NW
325° NW NW
330° NW NNW
325° NW NW
325° NW NW
320° NW NW

7 13 4 8 3
7 13 4 8 3
6 12 3 7 3
6 12 3 7 3
6 11 3 7 2
6 11 3 7 2
5 10 3 6 2
5 10 3 6 2
5 10 3 6 2
5 10 3 6 2
6 11 3 7 2
6 12 3 7 3
7 13 4 8 3
8 14 4 9 3
8 15 4 9 3
9 16 4 10 3
9 17 5 11 3
10 18 5 11 3
10 18 5 11 3
10 19 5 12 3
10 19 5 12 3
9 17 5 11 3
8 15 4 9 3
8 14 4 9 3

13 25 7 16 4
13 24 7 15 4
12 23 6 14 4
12 23 6 14 4
12 22 6 14 4
11 21 6 13 4
12 22 6 14 4
12 22 6 14 4
12 22 6 14 4
12 22 6 14 4
12 22 6 14 4
12 22 6 14 4
12 22 6 14 4
12 23 6 14 4
12 23 6 14 4
13 24 7 15 4
13 25 7 16 4
14 26 7 16 4
15 27 8 17 4
15 28 8 17 4
16 29 8 18 5
16 29 8 18 5
15 28 8 17 4
15 28 8 17 4

1.7
1.6
1.6
1.5
1.5
1.4
1.4
1.3
1.2
1.2
1.1
1.1
1
1
0.9
0.9
0.8
0.8
0.8
0.8
0.7
0.7
0.7
0.7

1.5
1.4
1.3
1.2
1.2
1.1
1.1
1
0.9
0.9
0.8
0.7
0.7
0.6
0.5
0.5
0.5
0.4
0.4
0.4
0.3
0.3
0.3
0.3

295° NW WNW
295° NW WNW
295° NW WNW
295° NW WNW
300° NW WNW
300° NW WNW
300° NW WNW
300° NW WNW
300° NW WNW
300° NW WNW
295° NW WNW
295° NW WNW
295° NW WNW
295° NW WNW
295° NW WNW
295° NW WNW
295° NW WNW
295° NW WNW
295° NW WNW
295° NW WNW
295° NW WNW
295° NW WNW
295° NW WNW
295° NW WNW

0.6
0.7
0.7
0.7
0.7
0.7
0.7
0.7
0.7
0.7
0.7
0.7
0.7
0.7
0.7
0.6
0.6
0.6
0.6
0.6
0.6
0.6
0.6
0.6

9
8
8
8
8
7
7
7
7
7
7
7
7
7
7
7
7
7
7
7
7
7
7
7

35
35
35
35
35
30
30
30
30
25
25
25
25
25
25
25
25
25
20
20
20
20
20
20

10.6
9.9
8.6
6.9
5.2
3.8
3.1
3.2
4.4
6.2
8.2
9.7
10.2
9.8
8.7
7.3
5.7
4.4
3.6
3.5
4.3
5.9
7.7
9.1

21 70
21 70
21 70
21 70
21 70
21 70
21 70
21 70
21 70
21 70
21 70
21 70
21 70
21 70
21 70
21 70
21 70
21 70
21 70
21 70
21 70
21 70
21 70
21 70

55
55
55
50
50
50
55
60
65
65
70
70
70
70
70
70
70
65
65
60
60
55
50
50

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

-

20
0
20
20
25
25
25
30
30
50
50
50
50
55
55
55
50
50
50
35
35
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

5
5
4
4
4
4
5
5
5
10
>20
>20
>20
>20
>20
>20
>20
>20
>20
>20
>20
>20
>20
15

1017
1017
1017
1017
1017
1017
1017
1017
1017
1017
1017
1017
1016
1016
1016
1016
1015
1015
1015
1015
1015
1016
1016
1016

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

18 64
19 67
17 62
17 62
16 61
16 61
16 61
16 62
17 62
18 64
19 66
20 68
21 69
21 70
22 71
22 71
22 71
22 71
21 70
21 69
20 68
19 66
18 64
17 62

15 59
17 63
14 58
14 58
14 57
14 57
14 58
14 58
15 58
16 61
18 64
22 72
24 74
25 77
26 79
26 79
26 79
26 79
25 76
23 74
19 66
17 63
16 61
14 58

Forecasts established in local time
Caption Glossary

Expert opinion

Bulletin météo de la zone côtière de Dunkerque à Boulogne

Weather Risk Briefing

For Mouillage de Saint-Cast :
No gale warning.

For the night from Tuesday to Wednesday WNW force 3 in the early part of the night becoming force 2. Gusts reaching 13 knots in the early part of the night.

Moderate sea becoming slight at the end of the night. Low, fairly long swell from WNW. Poor visibility becoming reduced by mist in the middle of the night then poor. Daytime of Wednesday 19 august : The unsettled weather will become more unpredictable in the second half of the day.

Skies changeable to very cloudy. Some showers from late morning. In the evening, clear periods developing.
Light showers progressively becoming less frequent. WNW wind force 3 continuing all day. Gusts reaching 16 knots in the evening. Slight sea. Low, short swell from WNW. Poor visibility becoming excellent in the middle of the day then good.

semaphore stations

Station Dinard located 14 km from Mouillage de Saint-Cast

	WIND			WEATHER
Local time	Dir. (°)	Speed (nd)	Gust (nd)	Temp. (°C)	Pressure (hPa)	Visibility (M)
08h	200	4	5	19.3	1021	0
07h	220	3	7	18.9	1020	0
06h	280	2	8	20.1	1020	0

Nearby signal stations

Météo France - RADOME

Signal station weather

Tides at Saint-Cast

57

Low tide 06h25 3.04m

High tide 11h58 10.19m

Low tide 18h38 3.41m

www.shom.fr - © SHOM 2026 - Local times

Consult the tides for August

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Thu

13

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

Fri

14

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

Sat

15

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

Sun

16

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

Mon

17

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

Tue

18

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

Wed

19

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

Thu

20

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

Fri

21

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

Sat

22

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

Sun

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

Mon

24

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

Tue

25

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

Wed

26

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

Thu

27

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

Weather anchorage Mouillage de Saint-Cast

BULLETIN

Wind

Waves

Weather

Temperature

Expert opinion

semaphore stations

Tides at Saint-Cast

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