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

Saint-Guénolé FRALongitude : -4°22’,8654 W Latitude : 47°48’,924 N Altitude : 0m

Sun

31

-

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

Mon

01

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

Tue

02

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

Wed

03

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

Thu

04

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

Fri

05

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

Sat

06

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

Sun

07

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

Mon

08

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

Tue

09

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

Wed

10

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

Thu

11

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

Fri

12

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

Sat

13

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

Sun

14

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

BULLETIN

(established in local time)

Reliability 85%

Wind alert - Warning strong breeze offshore.

Sunday 31 august

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)

25

20

15

10

50

40

30

20

15

10

5

30

25

20

15

10

5

0

2.5

2

3

0

25

20

15

10

75

70

65

60

55

50

Mon 1

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

235° SW SW
230° SW SW
230° SW SW
230° SW SW
230° SW SW
225° SW SW
225° SW SW
220° SW SW
220° SW SW
230° SW SW
235° SW SW
230° SW SW
235° SW SW
240° SW WSW
245° SW WSW
250° W WSW
250° W WSW
255° W WSW
270° W W
265° W W
275° W W
270° W W
275° W W
275° W W

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

19 36 10 22 5
21 39 11 24 6
23 42 12 26 6
23 43 12 27 6
22 40 11 25 6
22 41 11 25 6
22 40 11 25 6
23 42 12 26 6
23 43 12 27 6
22 40 11 25 6
22 40 11 25 6
21 39 11 24 6
22 40 11 25 6
22 41 11 25 6
21 39 11 24 6
21 38 11 24 5
20 37 10 23 5
21 39 11 24 6
21 38 11 24 5
21 39 11 24 6
22 41 11 25 6
23 43 12 27 6
22 41 11 25 6
24 44 12 27 6

- - - - -
- - - - -
- - - - -
- - - - -
- - - - -
- - - - -
- - - - -
- - - - -
- - - - -
- - - - -
- - - - -
- - - - -
- - - - -
>25 >50 >14 >30 >7
>25 >50 >14 >30 >7
>25 >50 >14 >30 >7
>25 >50 >14 >30 >7
>25 >50 >14 >30 >7
>25 >50 >14 >30 >7
>25 >50 >14 >30 >7
>25 >50 >14 >30 >7
>25 >50 >14 >30 >7
>25 >50 >14 >30 >7
>25 >50 >14 >30 >7

2.3
2.3
2.3
2.3
2.4
2.4
2.4
2.4
2.4
2.3
2.3
2.3
2.3
2.3
2.3
2.3
2.3
2.3
2.3
2.3
2.3
2.3
2.3
2.3

4.1
4.1
4.2
4.2
4.3
4.3
4.3
4.3
4.2
4.2
4.1
4.1
4.1
4.1
4.1
4.1
4.1
4.1
4.1
4.2
4.1
4.1
4.1
4.1

0.5
0.2
0.4
0.4
0.3
0.3
0.3
0.3
0.4
0.5
0.3
0.3
0.4
0.5
0.4
0.4
0.4
0.3
0.4
0.4
0.5
0.5
0.5
0.6

200° S SSW
200° S SSW
200° S SSW
200° S SSW
200° S SSW
200° S SSW
200° S SSW
200° S SSW
200° S SSW
200° S SSW
200° S SSW
200° S SSW
200° S SSW
200° S SSW
200° S SSW
200° S SSW
200° S SSW
200° S SSW
200° S SSW
200° S SSW
200° S SSW
200° S SSW
200° S SSW
200° S SSW

2.2
2.3
2.3
2.3
2.4
2.4
2.4
2.4
2.3
2.3
2.3
2.3
2.2
2.2
2.2
2.2
2.2
2.3
2.3
2.3
2.3
2.2
2.2
2.2

9
9
9
9
9
9
9
9
9
9
9
9
9
9
9
9
9
9
9
9
9
9
9
9

190
200
200
200
210
210
210
210
200
200
200
200
200
200
200
200
200
200
200
200
200
200
190
190

2.8
2.4
2.2
2.2
2.3
2.6
3.0
3.3
3.5
3.6
3.5
3.3
2.9
2.6
2.4
2.2
2.3
2.5
2.8
3.2
3.4
3.6
3.5
3.4

16 60
16 60
16 60
16 60
16 60
16 60
16 60
16 60
16 60
16 60
16 60
16 60
16 60
16 60
16 60
16 60
16 60
16 60
16 60
16 60
16 60
16 60
16 60
16 60

15
5
35
35
45
40
40
65
80
40
35
40
55
70
65
60
55
60
90
90
90
80
65
75

0.3
0
0
0
0
0
0
0
0
0
0
0
0
0
0.1
0
0
0.8
0.7
0.6
0.5
0.2
0.3
0.1

90
25
30
30
30
25
20
25
25
25
20
20
35
40
50
40
45
55
60
55
50
50
55
50

>20
>20
>20
>20
>20
>20
>20
>20
>20
>20
>20
>20
>20
>20
>20
>20
>20
>20
>20
>20
>20
>20
>20
>20

1006
1006
1006
1005
1005
1005
1005
1005
1005
1005
1005
1005
1005
1005
1005
1005
1005
1005
1005
1006
1006
1007
1007
1008

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

19 66
19 66
19 65
18 65
18 65
18 64
18 64
17 63
17 62
17 62
17 62
17 62
17 62
16 62
17 62
16 62
16 61
16 61
16 61
16 61
17 63
17 63
17 63
18 64

22 71
21 69
18 65
18 64
16 61
15 59
14 57
12 54
12 54
12 54
12 53
12 54
12 54
12 53
12 54
12 53
12 53
12 53
12 53
13 55
13 56
14 58
16 60
17 62

17 31 5 9 19
17 31 5 9 19
17 31 5 9 19
17 31 5 9 19
17 31 5 9 19
17 31 5 9 19
16 30 5 8 19
16 30 5 8 19
16 30 5 8 19
17 32 5 9 20
18 33 5 9 21
17 31 5 9 19
17 31 5 9 19
16 30 5 8 19
17 31 5 9 19
15 28 4 8 17
17 32 5 9 20
15 27 4 8 17
15 27 4 8 17
15 28 4 8 17
16 29 5 8 18
17 31 5 9 19
17 32 5 9 20
16 30 5 8 19

3.6
3.5
3.5
3.5
3.6
3.6
3.6
3.6
3.6
3.6
3.6
3.6
3.6
3.5
3.5
3.4
3.4
3.4
3.5
3.5
3.5
3.5
3.5
3.6

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

For Saint-Guénolé :
Warning strong breeze offshore.

We are 85% sure of the situation, because the atmosphere might be less unstable and showers more frequent than forecast.

Cloud and long sunny periods. Light showers progressively becoming less frequent. In the evening, good clear periods but cloud building.
Possibility of showers SW force 5 in the middle of the day becoming force 4 in the evening. Gusts reaching 23 knots. Moderate sea. Moderate, fairly long swell from SSW. Excellent visibility.

Tides at Saint-Guenole

37

Low tide 04h14 2.03m

High tide 10h03 3.78m

32

Low tide 16h44 2.2m

High tide 22h51 3.6m

www.shom.fr - © SHOM 2025

Consult the tides for August

Sun

31

-

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

Mon

01

-

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

Tue

02

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

Wed

03

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

Thu

04

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

Fri

05

-

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

Sat

06

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

Sun

07

-

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

Mon

08

-

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

Tue

09

-

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

Wed

10

-

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

Thu

11

-

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

Fri

12

-

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

Sat

13

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

Sun

14

-

- 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-Guénolé

BULLETIN

Wind

Waves

Weather

Temperature

Offshore

Expert opinion

Tides at Saint-Guenole