Weather Saint-Briac-sur-Mer - Detailed bulletin - Free 15-day Marine forecasts

Saint-Briac-sur-Mer FRALongitude : -2°9’,102 W Latitude : 48°37’,5 N Altitude : 0m

Wed

03

-

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

Thu

04

-

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

Fri

05

-

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

Sat

06

-

- 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

-

- 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

Mon

15

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

Tue

16

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

Wed

17

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

BULLETIN

(established in local time)

Reliability 80%

Wind alert - Warning moderate gale offshore.

Wednesday 3 september

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)

40

30

20

10

70

60

50

40

30

20

10

20

15

10

5

50

40

30

20

10

5

0

1

0.5

0

3

0

25

20

15

10

80

70

60

50

Thu 4

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

240° SW WSW
250° W WSW
255° W WSW
265° W W
260° W WSW
245° SW WSW
235° SW SW
225° SW SW
215° SW SW
205° SW SSW
200° S SSW
195° S SSW
190° S S
190° S S
190° S S
185° S S
200° S SSW
205° SW SSW
215° SW SW
225° SW SW
235° SW SW
250° W WSW
260° W W
275° W W

16 29 8 18 5
16 29 8 18 5
17 32 9 20 5
16 29 8 18 5
15 27 8 17 4
13 24 7 15 4
12 22 6 14 4
12 22 6 14 4
10 19 5 12 3
10 19 5 12 3
10 19 5 12 3
11 20 6 12 4
11 21 6 13 4
12 23 6 14 4
13 24 7 15 4
14 26 7 16 4
12 22 6 14 4
11 20 6 12 4
13 24 7 15 4
15 27 8 17 4
16 30 8 19 5
15 28 8 17 4
15 27 8 17 4
13 25 7 16 4

32 60 17 37 7
32 59 16 37 7
35 65 18 40 8
30 56 16 35 7
29 53 15 33 7
25 46 13 29 6
23 43 12 27 6
22 40 11 25 6
19 36 10 22 5
19 35 10 22 5
19 36 10 22 5
19 36 10 22 5
19 36 10 22 5
22 41 11 25 6
24 45 13 28 6
26 49 14 30 6
25 46 13 29 6
21 39 11 24 6
22 41 11 25 6
25 46 13 29 6
26 48 13 30 6
26 48 13 30 6
25 46 13 29 6
26 48 13 30 6

- - - - -
- - - - -
>45 >85 >25 >55 >10
>45 >80 >23 >50 >9
- - - - -
- - - - -
- - - - -
- - - - -
- - - - -
- - - - -
- - - - -
- - - - -
- - - - -
- - - - -
- - - - -
>30 >55 >16 >35 >7
>35 >65 >18 >40 >8
- - - - -
- - - - -
- - - - -
- - - - -
- - - - -
- - - - -
- - - - -

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

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

0.6
0.5
0.5
0.6
0.3
0.3
0.2
0.2
0.2
0.1
0.2
0.2
0.1
0.2
0.2
0.2
0.2
0.2
0.2
0.3
0.3
0.4
0.5
0.4

310° NW NW
310° NW NW
315° NW NW
315° NW NW
315° NW NW
315° NW NW
315° NW NW
315° NW NW
315° NW NW
315° NW NW
315° NW NW
315° NW NW
315° NW NW
315° NW NW
310° NW NW
315° NW NW
315° NW NW
315° NW NW
315° NW NW
315° NW NW
315° NW NW
315° NW NW
315° NW NW
315° NW NW

0.4
0.4
0.5
0.5
0.8
0.8
0.7
0.7
0.7
0.6
0.6
0.6
0.6
0.5
0.5
0.5
0.4
0.4
0.4
0.4
0.4
0.4
0.3
0.7

10
10
7
6
6
6
8
8
8
8
8
8
8
9
8
9
9
9
10
10
9
8
8
6

110
110
80
50
60
70
110
110
110
110
110
120
130
130
120
120
120
130
120
110
100
100
90
50

7.8
8.3
8.4
8.2
7.5
6.7
5.8
5.1
4.7
4.7
5.3
6.2
7.2
8.1
8.6
8.6
8.1
7.3
6.3
5.4
4.7
4.5
4.8
5.7

19 67
19 67
19 67
19 67
19 67
19 67
19 67
19 67
19 67
19 67
19 67
19 67
19 67
19 67
19 66
19 66
19 66
19 66
19 66
19 66
19 66
19 66
19 67
19 67

85
85
70
95
95
80
50
30
25
40
35
80
30
35
100
100
95
55
35
65
60
55
50
90

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

-
-
-
-
-
-
-
-
-

80
95
40
40
30
20
20
0
0
0
0
0
0
0
35
50
45
30
20
0
0
20
35
40

15
15
>20
>20
>20
>20
>20
>20
>20
>20
>20
>20
>20
>20
>20
>20
>20
>20
>20
>20
>20
>20
>20
>20

1002
1003
1003
1004
1005
1006
1007
1008
1008
1008
1008
1008
1008
1008
1007
1006
1006
1007
1007
1008
1009
1009
1010
1010

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

21 70
21 69
20 69
20 67
19 66
18 65
17 63
16 62
16 60
15 59
15 59
15 59
15 59
15 59
15 60
16 60
15 60
15 59
16 60
17 62
17 63
18 64
19 65
19 65

23 73
22 71
20 69
16 60
16 60
14 58
13 56
12 54
12 54
12 53
11 52
11 52
11 52
11 51
11 52
11 51
11 52
11 52
12 54
14 57
15 58
17 63
18 64
17 63

23 43 6 12 27
24 44 6 12 27
26 48 6 13 30
25 46 6 13 29
22 40 6 11 25
21 39 6 11 24
20 37 5 10 23
20 37 5 10 23
19 36 5 10 22
19 35 5 10 22
19 35 5 10 22
20 37 5 10 23
21 38 5 11 24
23 42 6 12 26
24 44 6 12 27
21 39 6 11 24
22 40 6 11 25
23 42 6 12 26
23 42 6 12 26
23 42 6 12 26
23 42 6 12 26
22 41 6 11 25
22 40 6 11 25
21 38 5 11 24

1.3
1.4
1.4
1.4
1.3
1.2
1.1
1.1
1.1
1
1
1
1
1
1
1
1
1
1
1
1.1
1.1
1.2
1.2

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

Expert opinion

Low 991 hPa centered to the South-West of Ireland moving at 22 knots to the East-North-East and dropping to 987 hPa to be centered on the North of the Irish Sea.

For Saint-Briac-sur-Mer :
Warning moderate gale offshore.

We are 80% sure of the situation, because hail may not be as easy to predict.

Very cloudy with risk of storms. Showers towards the end of the night. In the evening, clear periods developing.
Possibility of showers SW wind force 5 from the middle of the day. Gusts reaching 35 knots in the middle of the day. Slight sea. Low, fairly long swell from NW. Good visibility becoming excellent in the evening.

Tides at Saint-Cast

28

High tide 04h02 7.97m

Low tide 10h39 5.28m

34

High tide 16h53 8.45m

Low tide 23h27 4.63m

www.shom.fr - © SHOM 2025

Consult the tides for September

Wed

03

-

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

Thu

04

-

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

Fri

05

-

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

Sat

06

-

- 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

-

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

Sun

14

-

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

Mon

15

-

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

Tue

16

-

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

Wed

17

-

- 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-Briac-sur-Mer

BULLETIN

Wind

Waves

Weather

Temperature

Offshore

Expert opinion

Tides at Saint-Cast