Amount of precipitationAmount of precipitation(mm)
Type of precipitationType of precipitation
Risks:
Precipitation riskPrecipitation risk(%)
Storm risk.(%)
Brightness:
Visibility(km)
Pressure(hPa)
UV
Temperature
Air tempAir temp
Perceived temp
Air temp
Perceived temp
Offshore
Offshore wind
Offshore sea(m)
20
15
10
5
0
30
20
10
0
10
5
0
20
15
10
5
0
5
0
0.5
0
3
0
40
30
20
10
110
100
90
80
70
60
50
Tue 26
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 : 24/05 00ZMesh : 1kmUpdated, 7h agoUpdate imminent
Tue 26
01h
02h
03h
04h
05h
06h
07h
08h
09h
10h
11h
12h
13h
14h
15h
16h
17h
18h
19h
20h
21h
22h
23h
00h
65°NEENE
60°NEENE
55°NEENE
60°NEENE
60°NEENE
60°NEENE
60°NEENE
70°EENE
75°EENE
85°EE
95°EE
95°EE
105°EESE
110°EESE
120°SEESE
135°SESE
160°SSSE
250°WWSW
265°WW
280°WW
295°NWWNW
325°NWNW
0°NN
25°NENNE
510362
713483
713483
612373
612373
611372
611372
612373
713483
713483
713483
713483
713483
713483
611372
59362
36242
59362
59362
48252
35131
36242
47242
47242
10195123
13247154
12236144
12236144
12236144
14267164
14267164
12226144
13247154
14267164
14267164
15278174
15278174
15278174
14267164
12236144
11206124
11216134
11216134
10185113
815493
612373
713483
9175113
0.2
0.1
0.2
0.2
0.2
0.2
0.2
0.2
0.2
0.2
0.2
0.2
0.2
0.2
0.2
0.2
0.1
0.1
0.1
0.1
0.1
0.1
0.1
0.1
0.1
0.1
0.1
0.1
0.1
0.1
0.1
0.1
0.1
0.1
0.1
0.1
0.1
0.1
0.1
0
0
0
0
0
0
0
0
0
205°SWSSW
220°SWSW
210°SWSSW
215°SWSW
220°SWSW
210°SWSSW
215°SWSW
220°SWSW
220°SWSW
220°SWSW
220°SWSW
220°SWSW
145°SESE
145°SESE
130°SESE
180°SS
215°SWSW
220°SWSW
225°SWSW
225°SWSW
225°SWSW
225°SWSW
225°SWSW
225°SWSW
0.1
0.1
0.1
0.1
0.1
0.1
0.1
0.1
0.1
0.1
0.1
0.1
0.1
0.1
0.1
0.1
0.1
0.1
0.1
0.1
0.1
0.1
0.1
0.1
6
8
7
7
8
7
8
9
9
9
9
8
5
5
4
6
9
10
10
10
10
10
10
10
15
20
10
70
70
60
170
150
20
15
15
20
25
25
20
150
180
200
200
210
200
200
200
170
4.5
4.5
4.1
3.5
2.7
2.1
1.8
1.9
2.2
2.7
3.3
3.9
4.3
4.4
4.3
3.8
3.1
2.4
2.0
1.9
2.1
2.6
3.2
3.8
1864
1864
1763
1763
1763
1763
1762
1762
1762
1763
1763
1864
1864
1865
1966
1966
1967
1967
1967
1967
1966
1966
1966
1965
0
0
0
0
0
0
0
0
0
0
0
0
0
0
5
10
5
10
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
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
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
0
0
0
>20
>20
>20
>20
>20
>20
15
>20
>20
>20
>20
>20
>20
>20
>20
>20
>20
>20
>20
>20
>20
>20
>20
>20
1026
1026
1026
1026
1026
1026
1026
1026
1027
1027
1027
1027
1026
1026
1026
1025
1025
1025
1025
1025
1025
1025
1026
1026
0
0
0
0
0
0
0
0
1
3
4
6
7
7
7
6
4
2
1
0
0
0
0
0
2373
2170
2169
2068
2067
1967
1661
1965
2373
2577
2780
2983
3086
3188
3289
3290
3289
3087
2985
2983
2780
2576
2475
2373
2475
2271
2170
2169
1763
1763
1458
1763
2679
3085
3392
3697
38101
3698
3799
38100
3798
3392
3494
3391
3086
2781
2678
2577
10183511
11214613
13244715
13254716
13254716
13244715
14264716
13244715
12234614
11214613
9173511
815349
612337
612337
713348
815349
713348
510236
36224
12111
24112
36224
47224
47224
0.4
0.5
0.5
0.5
0.5
0.5
0.5
0.5
0.5
0.5
0.5
0.5
0.5
0.5
0.5
0.5
0.5
0.5
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 CaptionGlossary
Expert opinion
A northeasterly and very variable flow prevails over the South and the East of the basin. Over the North-West, it is southerly, moderate and very variable.
For La Roche-Bernard : No gale warning.
The reliability of the situation is assessed at 90%.
Fair weather with mostly clear skies.In the evening, skies with few clouds. ENE force 3 turning ESE in the middle of the day then WNW force 2. Gusts reaching 15 knots in the middle of the day. Smooth sea. Low, short swell from SSW. Good visibility becoming excellent in the middle of the day.
semaphore stations
Station St Nazaire-Montoir located 26 km from La Roche-Bernard
* +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