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

Fri

09

-

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

Sat

10

-

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

Sun

11

-

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

Mon

12

-

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

Tue

13

-

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

Wed

14

-

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

Thu

15

-

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

Fri

16

-

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

Sat

17

-

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

Sun

18

-

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

Mon

19

-

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

Tue

20

-

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

Wed

21

-

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

Thu

22

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

Fri

23

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

BULLETIN

(established in local time)

Reliability 85%

No gale warning.

Saturday 10 may

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)

30

20

10

0

40

30

20

10

0

15

10

5

0

30

20

10

0

10

5

0

1

0.5

0

3

0

25

20

15

10

5

80

70

60

50

40

Sat 10

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

60° NE ENE
70° E ENE
70° E ENE
75° E ENE
75° E ENE
75° E ENE
80° E E
80° E E
75° E ENE
80° E E
90° E E
85° E E
90° E E
95° E E
105° E ESE
110° E ESE
115° SE ESE
155° SE SSE
130° SE SE
80° E E
75° E ENE
50° NE NE
15° N NNE
40° NE NE

9 17 5 11 3
8 15 4 9 3
8 15 4 9 3
8 14 4 9 3
8 14 4 9 3
8 14 4 9 3
8 14 4 9 3
8 14 4 9 3
8 15 4 9 3
9 17 5 11 3
9 16 4 10 3
8 15 4 9 3
9 16 4 10 3
9 17 5 11 3
10 18 5 11 3
10 19 5 12 3
10 19 5 12 3
9 16 4 10 3
7 13 4 8 3
3 6 2 4 2
3 6 2 4 2
2 3 1 2 1
1 1 0 1 1
1 2 1 1 1

20 37 10 23 5
16 30 8 19 5
15 27 8 17 4
14 26 7 16 4
12 22 6 14 4
13 25 7 16 4
13 25 7 16 4
13 25 7 16 4
13 25 7 16 4
16 29 8 18 5
16 29 8 18 5
16 29 8 18 5
16 30 8 19 5
18 34 9 21 5
18 34 9 21 5
21 38 11 24 5
20 37 10 23 5
21 39 11 24 6
21 38 11 24 5
17 31 9 19 5
15 28 8 17 4
12 23 6 14 4
9 17 5 11 3
9 17 5 11 3

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

1.1
1.1
1
0.9
0.9
1
0.9
0.9
0.8
0.8
0.8
0.9
0.8
0.8
0.8
0.8
0.7
0.7
0.6
0.6
0.6
0.5
0.5
0.5

0.2
0.1
0.1
0.1
0.1
0.1
0.1
0.1
0.1
0.1
0.2
0.2
0.2
0.1
0.1
0.2
0.1
0.2
0.1
0.1
0.1
0
0
0

185° S S
185° S S
180° S S
185° S S
185° S S
15° N NNE
15° N NNE
100° E E
100° E E
100° E E
95° E E
10° N N
100° E E
100° E E
100° E E
15° N NNE
95° E E
95° E E
10° N N
90° E E
355° N N
350° N N
350° N N
350° N N

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

4
4
4
4
4
5
5
5
5
5
5
5
5
5
5
5
5
5
5
5
6
6
6
6

80
80
130
130
130
35
40
40
45
45
35
30
35
35
35
30
35
30
35
45
50
60
60
60

3.3
2.9
3.5
5.1
7.1
9.0
10.2
10.3
9.5
8.2
6.4
4.7
3.4
2.7
2.9
4.2
6.3
8.5
10.1
10.7
10.2
8.9
7.1
5.2

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 56
13 56
14 56
14 56
14 56
14 56
14 56
13 56
13 56
13 56

35
35
10
15
15
35
15
20
30
30
60
85
55
55
75
90
95
100
95
80
85
90
95
75

0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
1.3
1.6
1.7
1.1
0.7
0.2
0

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

0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
40
60
70
60
55
55
50
45

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

1016
1015
1015
1015
1015
1014
1014
1014
1014
1014
1013
1013
1013
1012
1012
1011
1010
1010
1010
1010
1010
1010
1010
1010

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

13 55
12 54
12 54
12 53
11 52
11 52
11 52
11 52
12 54
13 56
15 58
16 61
18 64
19 66
20 67
21 69
21 69
19 66
19 66
18 64
17 63
16 60
15 58
14 57

9 49
10 49
9 48
9 48
9 47
8 47
8 47
8 47
10 49
11 52
12 54
16 60
18 64
20 67
18 65
21 70
19 67
17 63
19 65
17 62
16 61
15 59
14 58
14 56

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

1
1
0.9
0.9
0.9
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
0.5
0.5
0.5
0.5
0.5
0.5

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

A northeasterly, moderate and mostly variable flow prevails over the South of the basin. Over the North, it is southerly, moderate and mostly variable.

For Saint-Briac-sur-Mer :
No gale warning.

We are 85% sure of the situation, because in this type of situation, it is difficult to define precisely when the precipitation will begin.
For the night from Friday to Saturday ENE wind force 3 continuing all night. Gusts reaching 20 knots in the early part of the night.

Smooth to slight sea. Low, short swell from S. Excellent visibility. Daytime of Saturday 10 may : The weather will become more uncertain during the day.

Fairly cloudless skies becoming changeable during the morning, very cloudy with possibility of thunder storms in the afternoon. No precipitation in the morning, showers late in the day. In the evening, very cloudy with risk of storms.
Showers. E wind force 3 continuing all day. Gusts reaching 21 knots in the middle of the day. Smooth to slight sea. Low, short swell from NNE. Excellent visibility becoming good in the evening.

Tides at Saint-Cast

68

Low tide 00h58 2.87m

High tide 06h34 10.37m

71

Low tide 13h21 2.64m

High tide 18h57 10.67m

www.shom.fr - © SHOM 2025

Consult the tides for May

Fri

09

-

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

Sat

10

-

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

Sun

11

-

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

Mon

12

-

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

Tue

13

-

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

Wed

14

-

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

Thu

15

-

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

Fri

16

-

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

Sat

17

-

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

Sun

18

-

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

Mon

19

-

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

Tue

20

-

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

Wed

21

-

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

Thu

22

-

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

Fri

23

-

- 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