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

Saint-Cast-le-Guildo FRALon : -2°14’,7 W Lat : 48°38’,298 N Alt : 0m

Thu

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Fri

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Sat

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Sun

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Mon

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Tue

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Wed

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Thu

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Fri

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Sat

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Sun

26

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Mon

27

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Tue

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Wed

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Thu

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BULLETIN

Reliability 85%

No gale warning.

No weather risk at the spot

Thursday 16 apr

METEO CONSULT Run : 16/04 00Z Mesh : 4km Updated, 36min 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

Offshore

Offshore wind

Offshore sea (m)

20

15

10

5

0

30

20

10

0

10

5

0

20

15

10

5

0

5

0

0.5

0

3

0

25

20

15

10

5

70

60

50

40

                                    
                                                                         Fri 17
                                                            
                    21h
                
                    22h
                
                    23h
                
                    00h
                
                    01h
                
                    02h
                
                    03h
                
                    04h
                
                    05h
                
                    06h
                
                    07h
                
                    08h
                
                    09h
                
                    10h
                
                    11h
                
                    12h
                
                    13h
                
                    14h
                
                    15h
                
                    16h
                
                    17h
                
                    18h
                
                    19h
                
                    20h
                
                        Run : 16/04 00Z
                Mesh : 4km
                Updated, 36min ago
                Update imminent

Fri 17

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

225° SW SW
225° SW SW
220° SW SW
220° SW SW
215° SW SW
215° SW SW
205° SW SSW
205° SW SSW
200° S SSW
200° S SSW
205° SW SSW
210° SW SSW
200° S SSW
195° S SSW
210° SW SSW
215° SW SW
215° SW SW
215° SW SW
220° SW SW
190° S S
195° S SSW
40° NE NE
0° N N
330° NW NNW

8 14 4 9 3
8 14 4 9 3
7 13 4 8 3
7 13 4 8 3
7 13 4 8 3
6 12 3 7 3
5 10 3 6 2
5 10 3 6 2
6 11 3 7 2
6 11 3 7 2
5 10 3 6 2
4 8 2 5 2
5 10 3 6 2
5 9 3 6 2
6 11 3 7 2
8 14 4 9 3
6 12 3 7 3
6 11 3 7 2
5 10 3 6 2
3 6 2 4 2
2 3 1 2 1
1 1 0 1 1
2 3 1 2 1
5 9 3 6 2

14 26 7 16 4
13 25 7 16 4
13 24 7 15 4
13 24 7 15 4
12 23 6 14 4
11 21 6 13 4
10 18 5 11 3
9 17 5 11 3
10 18 5 11 3
10 19 5 12 3
10 18 5 11 3
10 18 5 11 3
9 17 5 11 3
10 19 5 12 3
12 23 6 14 4
15 28 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
11 20 6 12 4
10 19 5 12 3
10 18 5 11 3

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
0.3
0.3
0.3
0.3
0.3
0.3
0.3

0.1
0.1
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0

360° N N
0° N N
5° N N
5° N N
5° N N
355° N N
10° N N
15° N NNE
15° N NNE
15° N NNE
15° N NNE
10° N NNE
0° N N
0° N N
0° N N
5° N N
5° N N
355° N N
10° N N
10° N N
15° N NNE
15° N NNE
10° N N
10° N NNE

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
0.3
0.3
0.3
0.3
0.3
0.3
0.3

12
12
12
12
11
12
12
11
11
11
11
11
11
11
11
11
11
13
11
11
11
11
11
11

230
240
230
230
240
240
230
230
220
220
220
210
210
210
200
190
190
200
200
190
190
190
190
200

10.6
8.8
6.6
4.3
2.5
1.6
1.8
3.5
6.3
9.2
11.3
12.0
11.3
9.7
7.4
4.9
2.8
1.4
1.1
2.4
5.0
8.2
10.9
12.2

12 54
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 54
12 54
12 54
12 54
12 54
12 54

0
0
0
45
30
60
45
65
65
40
40
45
40
30
40
45
65
70
65
75
70
65
55
45

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
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
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
15
10
5
5
5
5
4
3
10
15
>20
>20
>20
>20
>20
>20
>20
>20
>20
>20

1021
1022
1022
1022
1022
1022
1022
1021
1021
1021
1021
1021
1021
1021
1021
1021
1021
1021
1020
1020
1020
1020
1020
1021

0
0
0
0
0
0
0
0
0
0
0
0
1
1
2
3
3
3
3
2
2
1
0
0

15 59
14 56
13 55
11 53
11 52
11 51
10 50
10 50
10 49
10 49
10 49
10 49
11 51
12 54
14 57
15 59
16 60
16 61
17 62
17 62
17 62
16 61
16 60
15 58

12 53
11 52
10 50
9 48
9 47
8 47
8 47
8 46
8 46
8 46
8 46
8 47
10 50
13 56
16 60
17 62
18 65
19 66
20 67
19 66
20 67
19 67
17 63
14 57

4 8 2 2 5
7 13 3 4 8
9 17 3 5 11
10 19 3 5 12
10 19 3 5 12
10 19 3 5 12
10 18 3 5 11
10 18 3 5 11
10 18 3 5 11
10 18 3 5 11
9 17 3 5 11
9 17 3 5 11
8 15 3 4 9
8 14 3 4 9
6 11 2 3 7
5 10 2 3 6
5 9 2 3 6
5 9 2 3 6
3 6 2 2 4
2 4 1 1 2
2 4 1 1 2
4 8 2 2 5
6 12 3 3 7
6 12 3 3 7

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

Forecasts established for the approach to the port, up to 1 mile from the coast, in local time
Caption Glossary

Expert opinion

A southwesterly, moderate and very variable flow prevails over the whole area.

For Saint-Cast-le-Guildo :
No gale warning.

We are 85% sure of the situation, because the high pressure system could move in more quickly than forecast.

In the evening, clear skies.
SW wind force 3. Gusts reaching 14 knots in the evening. Smooth to slight sea. Low, fairly long swell from N. Excellent visibility.

semaphore stations

Station Dinard located 14 km from Saint-Cast-le-Guildo

	WIND			WEATHER
Local time	Dir. (°)	Speed (nd)	Gust (nd)	Temp. (°C)	Pressure (hPa)	Visibility (M)
21h	210	13	31	13.8	1021	11
20h	230	22	35	16.3	1021	12
19h	220	21	36	17.7	1020	13

observation.semaphores_link

Météo France - RADOME

observation.semaphore_link

Tides at Saint-Cast

87

Low tide 01h38 2.15m

High tide 07h12 11.37m

93

Low tide 14h02 1.58m

High tide 19h35 11.7m

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

Consult the tides for April

Go further

Thu

16

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

Fri

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

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Sun

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Mon

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Mon

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Tue

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Wed

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Thu

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- 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

semaphore stations

Tides at Saint-Cast

Go further