Weather Les portes de bassin - Detailed bulletin - Free 15-day Marine forecasts

Batz-sur-Mer FRALon : -2°30’,291 W Lat : 47°12’,066 N Alt : 0m

Thu

14

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

Fri

15

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Sat

16

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Sun

17

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Mon

18

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Tue

19

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Wed

20

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Thu

21

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Fri

22

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Sat

23

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Sun

24

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Mon

25

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Tue

26

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Wed

27

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Thu

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

BULLETIN

Reliability 80%

Warning strong breeze.

Marine wind risk

Thursday 14 may

METEO CONSULT Run : 13/05 00Z Mesh : 1km Updated, 8h ago Update imminent

Wind

Average winds

Gusts

10m above ground level:

Direction

Speed

Gusts

Waves

Total sea (m) (m)

Swell (m) (m)

legend.title.wave_height

Total sea (m)

legend.title.wind_sea

Wind (m)

legend.title.swell

Swell direction

Swell height (m)

Swell period (s)

Wave length (m)

High tide (m)

Sea temp

Weather

Rain (mm) (mm)

Clouds:

Cloud cover (%)

Precipitation:

Amount of precipitation (mm)

Type of precipitation

Risks:

Precipitation risk (%)

Storm risk. (%)

Brightness:

Visibility (km)

Pressure (hPa)

UV

Temperature

Air temp

Perceived temp

Air temp

Perceived temp

35

30

25

20

15

70

60

50

40

30

20

15

10

5

40

30

20

10

5

0

3

0

15

10

5

0

60

55

50

45

40

35

                                    
                                                                         Fri 15
                                                            
                    01h
                
                    02h
                
                    03h
                
                    04h
                
                    05h
                
                    06h
                
                    07h
                
                    08h
                
                    09h
                
                    10h
                
                    11h
                
                    12h
                
                    13h
                
                    14h
                
                    15h
                
                    16h
                
                    17h
                
                    18h
                
                    19h
                
                    20h
                
                    21h
                
                    22h
                
                    23h
                
                    00h
                
                        Run : 13/05 00Z
                Mesh : 1km
                Updated, 8h ago
                Update imminent

Fri 15

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

305° NW NW
305° NW NW
305° NW NW
305° NW NW
305° NW NW
310° NW NW
310° NW NW
320° NW NW
320° NW NW
320° NW NW
320° NW NW
310° NW NW
315° NW NW
305° NW NW
305° NW NW
305° NW NW
305° NW NW
310° NW NW
320° NW NW
325° NW NW
335° NW NNW
340° N NNW
345° N NNW
340° N NNW

18 34 9 21 5
19 35 10 22 5
19 36 10 22 5
21 39 11 24 6
21 38 11 24 5
22 41 11 25 6
21 39 11 24 6
22 40 11 25 6
22 40 11 25 6
21 38 11 24 5
18 34 9 21 5
19 36 10 22 5
18 34 9 21 5
20 37 10 23 5
21 39 11 24 6
21 38 11 24 5
21 39 11 24 6
21 39 11 24 6
18 33 9 21 5
18 33 9 21 5
21 38 11 24 5
17 31 9 19 5
17 31 9 19 5
18 33 9 21 5

28 52 14 32 7
29 53 15 33 7
29 54 15 34 7
30 55 15 34 7
30 56 16 35 7
31 58 16 36 7
31 58 16 36 7
32 59 16 37 7
31 58 16 36 7
30 56 16 35 7
29 54 15 34 7
28 51 14 32 7
30 55 15 34 7
29 53 15 33 7
30 56 16 35 7
31 57 16 35 7
32 60 17 37 7
33 61 17 38 7
31 57 16 35 7
27 50 14 31 7
30 55 15 34 7
29 53 15 33 7
24 45 13 28 6
25 46 13 29 6

1.4
1.4
1.4
1.4
1.5
1.5
1.5
1.4
1.4
1.4
1.4
1.4
1.4
1.4
1.5
1.6
1.6
1.6
1.6
1.6
1.4
1.3
1.2
1.2

1.3
1.3
1.3
1.4
1.4
1.3
1.4
1.4
1.4
1.4
1.2
1.3
1.1
1.1
1.3
1.5
1.5
1.5
1.6
1.4
1.1
0.9
0.7
0.6

245° SW WSW
245° SW WSW
245° SW WSW
245° SW WSW
245° SW WSW
245° SW WSW
245° SW WSW
245° SW WSW
245° SW WSW
250° W WSW
245° SW WSW
250° W WSW
255° W WSW
255° W WSW
255° W WSW
240° SW WSW
250° W WSW
245° SW WSW
240° SW WSW
245° SW WSW
250° W WSW
260° W W
260° W W
265° W W

0.4
0.4
0.3
0.3
0.3
0.6
0.3
0.2
0.2
0.3
0.7
0.4
0.9
0.9
0.5
0.6
0.7
0.7
0.2
0.7
0.8
0.9
1.0
1.0

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

60
60
50
50
50
50
50
50
50
70
70
80
90
90
90
50
50
60
60
60
60
80
80
80

3.9
4.6
5.0
5.0
4.5
3.7
2.7
1.9
1.3
1.3
1.7
2.5
3.4
4.3
4.9
5.1
4.8
4.0
3.1
2.1
1.4
1.2
1.4
2.1

14 57
14 57
14 57
14 57
14 57
14 57
14 57
14 56
14 56
14 56
14 56
14 56
14 57
14 57
14 57
14 57
14 57
14 57
14 57
14 56
14 56
13 56
13 56
13 56

0
0
30
80
55
70
60
35
40
40
45
75
90
95
100
100
100
100
100
100
100
95
70
55

0
0
1.2
0
0
0
0
0
0
0
0
0
0
0
0
0
0.1
0.1
0.2
0.2
0.1
0.1
0
0

-
-
-
-
-
-
-

0
25
100
25
30
30
20
0
0
0
0
0
20
25
30
40
50
65
70
80
75
55
25
0

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

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

1011
1010
1010
1009
1009
1008
1008
1008
1008
1008
1007
1007
1007
1006
1006
1005
1005
1004
1004
1004
1004
1004
1004
1005

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

10 50
10 51
11 52
12 54
12 54
12 54
12 54
12 54
12 53
12 53
12 54
12 54
12 54
13 55
13 55
12 54
12 54
12 54
12 53
12 53
11 53
11 52
11 52
11 52

4 39
4 40
5 41
6 42
6 42
6 42
6 42
6 43
7 45
9 48
11 51
12 53
10 50
10 51
10 50
9 47
8 46
7 45
7 45
6 44
5 41
6 42
6 42
6 42

Forecasts established in local time
Caption Glossary

Expert opinion

For Les portes de bassin :
Warning strong breeze.

The reliability of the situation is assessed at 80%.

Sun but cloud increasing in the morning, very cloudy skies becoming totally covered in the afternoon. Risk of some spots of rain in the morning, light showers in the afternoon. In the evening, very cloudy skies to overcast.
Light showers. NW wind force 6 continuing all day. Gusts reaching 33 knots in the evening. Slight sea becoming moderate in the middle of the day. Low, short swell from WSW. Excellent visibility.

semaphore stations

Station Pte De Chemoulin located 16 km from Les portes de bassin

	WIND			WEATHER
Local time	Dir. (°)	Speed (nd)	Gust (nd)	Temp. (°C)	Pressure (hPa)	Visibility (M)
01h	310	14	40	-	-	0
00h	310	14	37	-	-	0
23h	310	19	35	-	-	14

observation.semaphores_link

Météo France - RADOME

observation.semaphore_link

Tides at Le Croisic

70

High tide 03h29 5.07m

Low tide 09h38 1.23m

77

High tide 15h49 5.1m

Low tide 22h03 1.16m

www.shom.fr - © SHOM 2026 - Local times

Consult the tides for May

Go further

Thu

14

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

Fri

15

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

Sat

16

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

Sun

17

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

Mon

18

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

Tue

19

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

Wed

20

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

Thu

21

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

Fri

22

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

Sat

23

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

Sun

24

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

Mon

25

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

Tue

26

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

Wed

27

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

Thu

28

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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 diving spot Les portes de bassin

BULLETIN

Wind

Waves

Weather

Temperature

Expert opinion

semaphore stations

Tides at Le Croisic

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