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

Mon

04

-

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

Tue

05

-

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

Wed

06

-

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

Thu

07

-

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

Fri

08

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

Sat

09

-

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

Sun

10

-

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

Mon

11

-

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

Tue

12

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

Wed

13

-

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

Thu

14

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

Fri

15

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

Sat

16

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

Sun

17

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

Mon

18

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

BULLETIN

(established in local time)

Reliability 90%

Wind alert - Warning strong breeze offshore.

Monday 4 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)

30

20

10

0

50

40

30

20

10

0

15

10

5

0

30

20

10

0

10

5

0

1

0.5

0

3

0

35

30

25

20

15

10

90

80

70

60

50

Tue 5

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

225° SW SW
255° W WSW
230° SW SW
215° SW SW
210° SW SSW
210° SW SSW
205° SW SSW
220° SW SW
230° SW SW
240° SW WSW
250° W WSW
260° W WSW
290° W WNW
300° NW WNW
325° NW NW
330° NW NNW
320° NW NW
315° NW NW
310° NW NW
300° NW WNW
300° NW WNW
290° W WNW
300° NW WNW
315° NW NW

5 9 3 6 2
5 9 3 6 2
5 9 3 6 2
4 8 2 5 2
5 10 3 6 2
6 11 3 7 2
5 10 3 6 2
7 13 4 8 3
8 14 4 9 3
8 14 4 9 3
8 14 4 9 3
8 14 4 9 3
8 15 4 9 3
10 18 5 11 3
9 17 5 11 3
10 19 5 12 3
10 18 5 11 3
11 21 6 13 4
15 27 8 17 4
14 26 7 16 4
13 25 7 16 4
12 22 6 14 4
12 23 6 14 4
13 24 7 15 4

8 14 4 9 3
9 16 4 10 3
8 15 4 9 3
8 14 4 9 3
8 15 4 9 3
9 17 5 11 3
8 15 4 9 3
11 21 6 13 4
12 23 6 14 4
13 25 7 16 4
14 26 7 16 4
15 28 8 17 4
16 29 8 18 5
17 31 9 19 5
17 31 9 19 5
17 31 9 19 5
19 35 10 22 5
19 36 10 22 5
22 41 11 25 6
23 42 12 26 6
23 42 12 26 6
21 39 11 24 6
21 38 11 24 5
21 38 11 24 5

0.2
0.2
0.2
0.2
0.2
0.2
0.2
0.2
0.2
0.2
0.2
0.2
0.2
0.2
0.2
0.2
0.2
0.2
0.3
0.4
0.5
0.4
0.4
0.4

0.5
0.5
0.5
0.5
0.4
0.4
0.4
0.4
0.4
0.3
0.4
0.4
0.4
0.4
0.4
0.4
0.5
0.5
0.7
0.9
0.9
0.9
0.8
0.9

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

180° S S
180° S S
180° S S
180° S S
245° SW WSW
310° NW NW
310° NW NW
305° NW NW
305° NW NW
305° NW NW
245° SW WSW
245° SW WSW
190° S S
185° S S
240° SW WSW
180° S S
180° S S
245° SW WSW
245° SW WSW
175° S S
190° S S
190° S S
190° S S
195° S SSW

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

3
3
4
4
3
5
5
5
5
5
3
3
5
5
3
4
3
3
3
6
4
4
4
7

40
40
40
35
40
40
40
40
160
160
160
150
150
150
25
25
25
20
50
60
60
70
70
25

8.1
8.3
8.1
7.5
6.8
6.0
5.4
5.0
5.0
5.4
6.1
7.0
7.8
8.3
8.4
8.1
7.5
6.8
5.9
5.3
4.9
4.9
5.3
6.1

20 67
20 67
20 67
20 67
20 67
20 67
20 67
20 67
20 67
20 67
20 67
20 68
20 68
20 68
20 68
20 68
20 68
20 68
20 68
20 68
20 68
20 68
20 68
20 68

95
95
95
90
90
75
25
25
65
50
50
55
35
40
50
35
20
30
50
60
70
95
100
100

0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0.4
0.3

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

0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
20
40
60
50

4.5
5
5
5
5
5
5
>20
>20
>20
>20
>20
>20
>20
>20
>20
>20
>20
>20
>20
>20
>20
>20
>20

1022
1022
1022
1022
1021
1021
1021
1021
1021
1021
1021
1020
1019
1019
1019
1019
1019
1019
1019
1019
1019
1019
1020
1021

0
0
0
0
0
0
0
1
2
3
5
6
7
7
5
4
2
1
0
0
0
0
0
0

17 63
17 63
17 63
17 62
17 62
16 62
17 63
19 66
20 69
22 71
23 74
24 76
25 77
25 78
25 77
24 75
23 73
22 72
21 70
21 69
20 68
20 67
19 66
18 65

15 59
16 60
15 59
15 59
15 58
14 58
15 60
18 64
24 74
26 78
28 83
30 85
30 86
30 87
30 86
28 83
27 80
24 76
20 69
20 67
19 66
15 60
15 58
14 57

9 17 3 5 11
10 18 3 5 11
9 17 3 5 11
9 16 3 4 10
9 16 3 4 10
10 18 3 5 11
10 19 3 5 12
10 19 3 5 12
10 18 3 5 11
8 14 3 4 9
6 11 2 3 7
4 8 2 2 5
2 3 1 1 2
6 11 2 3 7
10 18 3 5 11
16 30 5 8 19
19 36 5 10 22
19 36 5 10 22
19 36 5 10 22
18 34 5 9 21
16 29 5 8 18
16 29 5 8 18
16 29 5 8 18
17 31 5 9 19

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

Forecasts established for the approach to the port, up to 1 mile from the coast, in local time
Last updated 1h ago | Next update in 2h
Caption

Expert opinion

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

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

We are 90% sure of the situation, because the clear patches could move in later than forecast.

Bright spells increasing during the morning, cloud and sun in the afternoon. No precipitation. In the evening, good clear periods but cloud building.
Risk of showers in the early hours. SW force 3 turning WNW in the middle of the day then becoming force 4. Gusts reaching 23 knots in the evening. Smooth sea becoming smooth to slight in the evening. Low, short swell from WSW. Poor visibility becoming excellent in the middle of the day.

Tides at Saint-Cast

29

High tide 02h49 8.3m

Low tide 09h36 4.98m

31

High tide 15h46 8.43m

Low tide 22h33 4.82m

www.shom.fr - © SHOM 2025

Consult the tides for August

Mon

04

-

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

Tue

05

-

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

Wed

06

-

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

Thu

07

-

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

Fri

08

-

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

Sat

09

-

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

Sun

10

-

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

Mon

11

-

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

Tue

12

-

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

Wed

13

-

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

Thu

14

-

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

Fri

15

-

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

Sat

16

-

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

Sun

17

-

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

Mon

18

-

- 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