Weather Plage de la Grande Grève - Detailed bulletin - Free 15-day Marine forecasts

Roscoff (29680)Longitude : -3°58’,431 W Latitude : 48°42’,498 N Altitude : 0m

Tue

21

-

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

Wed

22

-

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

Thu

23

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

Fri

24

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

Sat

25

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

Sun

26

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

Mon

27

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

Tue

28

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

Wed

29

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

Thu

30

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

Fri

31

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

Sat

01

-

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

Sun

02

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

Mon

03

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Tue

04

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BULLETIN

(established in local time)

Reliability 90%

No gale warning.

Tuesday 21 october

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)

25

20

15

10

5

0

50

40

30

20

10

0

15

10

5

0

30

20

10

0

10

5

0

1

0.5

3

0

20

15

10

5

65

60

55

50

45

Wed 22

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

260° W W
260° W W
260° W W
260° W W
265° W W
260° W W
255° W WSW
250° W WSW
255° W WSW
255° W WSW
265° W W
265° W W
265° W W
280° W W
275° W W
265° W W
245° SW WSW
235° SW SW
225° SW SW
215° SW SSW
200° S SSW
200° S SSW
185° S S
170° S S

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

22 40 11 25 6
22 41 11 25 6
22 40 11 25 6
21 38 11 24 5
19 36 10 22 5
17 32 9 20 5
15 27 8 17 4
11 20 6 12 4
10 19 5 12 3
9 17 5 11 3
9 17 5 11 3
9 17 5 11 3
9 17 5 11 3
9 17 5 11 3
9 17 5 11 3
9 16 4 10 3
8 15 4 9 3
8 15 4 9 3
8 15 4 9 3
8 15 4 9 3
9 16 4 10 3
9 16 4 10 3
8 14 4 9 3
9 16 4 10 3

0.9
0.8
0.8
0.8
0.8
0.8
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
0.5
0.5
0.5

1.6
1.5
1.5
1.5
1.4
1.4
1.3
1.3
1.3
1.3
1.2
1.2
1.2
1.2
1.2
1.2
1.1
1.1
1.1
1.1
1.1
1
1
1

0.4
0.4
0.3
0.3
0.3
0.3
0.2
0.2
0.1
0.1
0.2
0.2
0.2
0.2
0.1
0.1
0.1
0.1
0.1
0
0
0
0
0

185° S S
185° S S
185° S S
185° S S
185° S S
185° S S
285° W WNW
185° S S
200° S SSW
195° S SSW
185° S S
185° S S
185° S S
290° W WNW
275° W W
185° S S
185° S S
285° W WNW
185° S S
200° S SSW
200° S SSW
200° S SSW
235° SW SW
235° SW SW

0.8
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
0.6
0.6
0.5
0.5
0.5

8
8
9
9
9
9
8
5
4
4
7
7
7
8
8
8
8
8
5
4
4
4
4
4

140
140
130
130
120
120
120
120
120
120
120
120
120
120
120
110
110
110
110
120
120
120
120
60

1.8
2.1
3.4
5.2
7.0
8.3
8.7
8.3
7.1
5.5
3.8
2.5
1.8
1.9
2.9
4.6
6.5
8.0
8.7
8.5
7.5
6.0
4.3
2.8

15 58
15 59
15 59
15 59
15 59
15 59
15 59
15 59
15 59
15 59
15 59
15 59
15 58
15 58
15 58
15 58
15 58
15 58
15 58
15 58
15 58
15 58
15 58
15 58

5
95
80
55
50
60
65
75
50
80
85
80
90
95
85
80
90
90
90
100
95
95
70
100

0.3
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0

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

90
0
0
0
0
0
20
20
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0

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

999
999
999
999
998
998
998
998
999
999
999
999
999
999
1000
1000
1000
1001
1001
1001
1001
1001
1001
1001

1
1
1
1
1
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
1
1

15 59
16 60
16 60
16 60
15 60
15 59
14 58
14 57
13 56
13 56
13 55
13 55
13 55
13 55
13 55
13 55
12 54
12 54
12 53
12 53
12 53
12 54
13 55
14 56

15 58
12 53
14 56
13 56
13 55
12 53
12 53
11 53
11 52
11 51
11 51
11 51
10 51
11 51
11 51
11 51
10 51
10 50
10 50
10 49
10 49
10 51
11 52
12 53

18 34 5 9 21
19 35 5 10 22
19 35 5 10 22
18 33 5 9 21
17 31 5 9 19
15 28 4 8 17
13 25 4 7 16
13 24 4 7 15
12 23 4 6 14
12 23 4 6 14
12 22 4 6 14
12 22 4 6 14
12 23 4 6 14
12 22 4 6 14
11 20 4 6 12
11 20 4 6 12
11 20 4 6 12
10 19 3 5 12
9 17 3 5 11
8 14 3 4 9
6 11 2 3 7
6 12 3 3 7
9 16 3 4 10
9 16 3 4 10

2.2
2.2
2.1
2
2
1.9
1.8
1.7
1.7
1.6
1.6
1.6
1.6
1.5
1.5
1.5
1.4
1.4
1.3
1.3
1.2
1.2
1.2
1.2

Forecasts established in local time
Last updated 15min ago | Next update in 3h
Caption

Expert opinion

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

For Plage de la Grande Grève :
No gale warning.

We are 90% sure of the situation, because the atmosphere might not be as stable as forecast.

Good clear periods but cloud building. Light showers progressively becoming less frequent. In the evening, good clear periods but lots of cloud, too.
Chance of light rain. W force 4 in the middle of the day becoming WSW force 3 in the evening. Gusts reaching 22 knots in the middle of the day. Slight sea. Low, fairly long swell from S. Excellent visibility becoming good in the evening.

Tides at Roscoff

85

Low tide 00h54 1.72m

High tide 06h44 8.65m

86

Low tide 13h07 1.76m

High tide 18h57 8.72m

www.shom.fr - © SHOM 2025

Consult the tides for October

Tue

21

-

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

Wed

22

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

Thu

23

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

Fri

24

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

Sat

25

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

Sun

26

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

Mon

27

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

Tue

28

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

Wed

29

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

Thu

30

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

Fri

31

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

Sat

01

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

Sun

02

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

Mon

03

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

Tue

04

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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 beach Plage de la Grande Grève

BULLETIN

Wind

Waves

Weather

Temperature

Offshore

Expert opinion

Tides at Roscoff