Weather Epave du M4021 - Detailed bulletin - Free 15-day Marine forecasts

Groix FRALongitude : -3°29’,0202 W Latitude : 47°39’,51 N Altitude : 0m

Thu

18

-

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

Fri

19

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

Sat

20

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

Sun

21

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

Mon

22

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

Tue

23

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

Wed

24

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

Thu

25

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

Fri

26

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

Sat

27

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

Sun

28

-

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

Mon

29

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

Tue

30

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

Wed

31

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Thu

01

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BULLETIN

(established in local time)

Reliability 90%

Wind alert - Warning moderate gale.

Thursday 18 december

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

50

40

30

20

10

0

90

80

70

60

50

40

30

20

10

30

20

10

0

60

50

40

30

20

10

5

0

5

0

9

6

3

0

15

10

5

0

60

55

50

45

40

35

Fri 19

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

195° S SSW
195° S SSW
195° S SSW
190° S S
190° S S
190° S S
190° S S
205° SW SSW
200° S SSW
210° SW SSW
215° SW SW
245° SW WSW
245° SW WSW
235° SW SW
255° W WSW
275° W W
285° W WNW
295° NW WNW
300° NW WNW
305° NW NW
305° NW WNW
300° NW WNW
295° NW WNW
300° NW WNW

26 48 13 30 6
28 51 14 32 7
29 54 15 34 7
32 59 16 37 7
30 56 16 35 7
32 59 16 37 7
31 57 16 35 7
31 58 16 36 7
30 56 16 35 7
28 52 14 32 7
24 45 13 28 6
16 29 8 18 5
12 23 6 14 4
15 27 8 17 4
16 30 8 19 5
15 28 8 17 4
16 29 8 18 5
15 27 8 17 4
13 25 7 16 4
11 21 6 13 4
10 18 5 11 3
9 17 5 11 3
10 19 5 12 3
10 18 5 11 3

39 72 20 45 8
41 76 21 47 9
42 78 22 48 9
45 84 23 52 9
45 83 23 52 9
46 85 24 53 9
46 86 24 53 9
47 87 24 54 9
46 85 24 53 9
45 83 23 52 9
41 76 21 47 9
33 62 17 39 8
21 39 11 24 6
21 39 11 24 6
25 46 13 29 6
23 43 12 27 6
23 43 12 27 6
22 41 11 25 6
20 37 10 23 5
18 33 9 21 5
15 28 8 17 4
13 25 7 16 4
15 28 8 17 4
16 29 8 18 5

3.1
3.2
3.4
3.5
3.7
3.8
3.8
3.8
3.8
3.9
3.9
3.9
3.7
3.5
3.4
3.3
3.2
3
2.8
2.6
2.5
2.4
2.4
2.3

5.6
5.8
6
6.3
6.6
6.8
6.8
6.8
6.9
6.9
7
6.9
6.6
6.4
6.2
5.8
5.7
5.4
5.1
4.6
4.5
4.4
4.3
4.2

3
3.1
3.2
3.3
3
3.6
3.6
3.6
2.1
0.7
0.3
0.3
0.4
0.3
0.3
0.3
0.2
0.1
0.1
0.1
0
0
0
0

245° SW WSW
245° SW WSW
245° SW WSW
240° SW WSW
240° SW WSW
240° SW WSW
240° SW WSW
235° SW WSW
225° SW SW
230° SW SW
230° SW SW
230° SW SW
230° SW SW
230° SW SW
230° SW SW
230° SW SW
230° SW SW
230° SW SW
230° SW SW
235° SW SW
235° SW SW
235° SW SW
235° SW SW
235° SW SW

0.9
1.1
1.2
1.2
2.1
1.3
1.3
1.2
3.2
3.8
3.9
3.8
3.7
3.5
3.4
3.2
3.1
3.0
2.8
2.5
2.5
2.4
2.4
2.3

13
13
14
12
13
13
14
13
11
11
12
12
12
12
12
12
12
12
12
13
13
13
13
13

120
120
130
130
130
130
140
150
170
190
210
220
230
240
240
240
240
240
240
250
250
260
260
260

2.2
1.9
1.8
2.1
2.7
3.4
4.0
4.5
4.6
4.3
3.7
3.0
2.4
1.9
1.7
2.0
2.5
3.3
4.0
4.6
4.8
4.6
4.1
3.3

13 55
13 55
13 55
13 55
13 55
13 55
13 55
13 55
13 55
13 55
13 55
13 55
13 55
13 55
13 55
13 55
13 55
13 55
13 55
13 55
13 55
13 55
13 55
13 55

100
100
100
100
100
100
100
100
100
100
100
100
100
100
100
100
80
75
70
70
75
80
75
55

0.1
0
1.2
2.2
2
2.2
2.2
0.8
2.2
1.9
0.5
0.6
0.6
0.1
0.2
0
0
0
0
0
0
0
0
0

-
-
-
-
-
-
-
-

95
40
90
90
90
90
90
90
90
90
90
80
60
50
60
40
0
0
0
0
0
0
0
0

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

1009
1009
1009
1008
1007
1006
1005
1005
1005
1005
1005
1006
1007
1008
1009
1011
1012
1013
1014
1015
1015
1016
1017
1017

0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0

13 55
13 55
13 55
13 55
13 55
13 55
13 55
13 55
13 55
13 55
13 55
13 55
12 54
13 55
12 54
12 53
11 52
10 50
10 49
9 48
9 48
9 48
8 47
8 47

5 42
5 41
4 40
4 39
4 40
4 39
4 40
4 39
4 40
5 41
5 42
8 46
8 47
8 46
7 44
7 44
6 42
5 42
5 41
5 41
5 42
5 42
5 40
5 40

Forecasts established in local time
Last updated 1h ago | Next update in 2h
Caption

Expert opinion

For Epave du M4021 :
Warning moderate gale.

The reliability of the situation is assessed at 90%.

Overcast skies. Persistent rain. In the evening, overcast skies.
Showers. SSW force 7 in the morning turning WSW force 6 in the evening. Gusts reaching 47 knots in the middle of the day. Rough sea becoming rough to very rough in the middle of the day. Low, fairly long swell from WSW then moderate in the middle of the day then from SW. Poor visibility becoming excellent in the middle of the day.

Tides at Port-Tudy

63

High tide 03h24 4.66m

Low tide 09h39 1.78m

65

High tide 15h45 4.57m

Low tide 21h57 1.73m

www.shom.fr - © SHOM 2025

Consult the tides for December

Thu

18

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

Fri

19

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Sat

20

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

Sun

21

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

Mon

22

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

Tue

23

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

Wed

24

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

Thu

25

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

Fri

26

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

Sat

27

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

Sun

28

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

Mon

29

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

Tue

30

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

Wed

31

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

Thu

01

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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 fishing spot Epave du M4021

BULLETIN

Wind

Waves

Weather

Temperature

Expert opinion

Tides at Port-Tudy