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)
25
20
15
10
5
40
30
20
10
15
10
5
0
25
20
15
10
5
10
5
0
1
0.5
0
3
0
20
15
10
5
65
60
55
50
45
Sun 17
00h
01h
02h
03h
04h
05h
06h
07h
08h
09h
10h
11h
12h
13h
14h
15h
16h
17h
18h
19h
20h
21h
22h
23h
Run : 16/05 00ZMesh : 1kmUpdated, 7h agoUpdate imminent
Sun 17
00h
01h
02h
03h
04h
05h
06h
07h
08h
09h
10h
11h
12h
13h
14h
15h
16h
17h
18h
19h
20h
21h
22h
23h
255°WWSW
255°WWSW
250°WWSW
250°WWSW
245°SWWSW
250°WWSW
255°WWSW
255°WWSW
270°WW
285°WWNW
285°WWNW
300°NWWNW
285°WWNW
280°WW
275°WW
275°WW
275°WW
280°WW
280°WW
280°WWNW
285°WWNW
295°NWWNW
295°NWWNW
300°NWWNW
510362
612373
713483
815493
815493
10185113
10185113
10185113
9164103
9175113
9164103
9175113
10185113
11216134
12236144
13247154
14267164
15278174
14267164
13257164
13257164
12236144
11216134
10195123
13257164
13257164
13247154
13247154
12236144
15288174
14267164
15278174
15278174
16308195
17319195
16298185
15288174
17319195
18349215
193610225
213811245
213811245
213811245
213811245
203710235
193610225
18339215
17319195
0.3
0.4
0.4
0.4
0.4
0.4
0.4
0.4
0.4
0.4
0.3
0.3
0.4
0.4
0.4
0.5
0.5
0.5
0.5
0.5
0.5
0.5
0.4
0.4
0.1
0.1
0.1
0.1
0.1
0.2
0.1
0.1
0.1
0.1
0.1
0.1
0.2
0.2
0.2
0.3
0.3
0.4
0.3
0.3
0.3
0.3
0.2
0.2
245°SWWSW
250°WWSW
245°SWWSW
245°SWWSW
245°SWWSW
245°SWWSW
240°SWWSW
240°SWWSW
240°SWWSW
240°SWWSW
225°SWSW
225°SWSW
240°SWWSW
245°SWWSW
250°WWSW
245°SWWSW
245°SWWSW
245°SWWSW
245°SWWSW
245°SWWSW
240°SWWSW
240°SWWSW
225°SWSW
225°SWSW
0.3
0.3
0.3
0.3
0.3
0.3
0.4
0.4
0.4
0.4
0.3
0.3
0.3
0.3
0.3
0.3
0.3
0.4
0.4
0.4
0.4
0.4
0.4
0.4
6
5
5
4
5
4
5
5
6
6
4
4
6
6
6
6
6
6
7
7
11
11
7
6
70
60
50
50
50
45
45
45
50
60
35
230
70
60
50
170
170
160
210
210
220
210
230
230
1.0
1.7
2.9
4.2
5.4
6.1
6.2
5.6
4.5
3.1
1.8
1.0
0.9
1.4
2.5
3.9
5.1
6.0
6.3
5.8
4.8
3.5
2.2
1.2
1559
1559
1559
1559
1559
1559
1559
1559
1559
1559
1559
1559
1559
1559
1559
1559
1559
1559
1559
1560
1560
1560
1560
1559
100
100
100
90
95
85
95
80
70
70
65
75
55
60
50
70
25
20
15
10
10
15
20
30
0
0.1
0
0
0
0
0.1
0.2
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
-
-
-
-
-
-
-
-
-
-
-
-
-
40
50
45
30
20
30
50
60
45
30
20
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
10
10
15
>20
>20
>20
>20
>20
>20
>20
>20
>20
>20
>20
>20
>20
>20
>20
>20
>20
>20
>20
>20
>20
1015
1014
1014
1014
1014
1014
1013
1013
1014
1014
1015
1015
1015
1016
1016
1016
1016
1016
1016
1016
1016
1016
1017
1017
0
0
0
0
0
0
0
0
0
1
2
3
4
5
5
4
4
3
2
1
0
0
0
0
1254
1254
1254
1355
1355
1355
1355
1355
1356
1456
1457
1458
1560
1560
1660
1660
1660
1660
1559
1559
1458
1356
1254
1152
1050
1050
1050
1049
1050
949
949
948
1151
1254
1356
1458
1762
1763
1864
1864
1763
1662
1660
1456
1153
1049
847
846
11204612
11204612
11204612
10183511
11204612
10193512
12224614
11214613
10183511
10193512
10193512
11204612
10183511
11204612
10193512
12234614
12234614
13254716
13254716
13254716
13254716
13244715
12234614
12224614
0.9
0.9
0.9
0.9
0.9
0.9
0.9
1
1
1
1.1
1.1
1.1
1.1
1
1
1
1
1
1
1
1.1
1.1
1.2
Forecasts established for the approach to the port, up to 1 mile from the coast, in local time CaptionGlossary
Expert opinion
A northwesterly, moderate and very variable flow prevails over the whole area.
For La Tranche-sur-Mer : No gale warning.
The reliability of the situation is assessed at 80%.
Skies changeable to very cloudy.Light showers progressively dying out in the morning, no precipitation in the afternoon.In the evening, skies with few clouds. W force 3 becoming force 4 in the middle of the day then WNW. Gusts reaching 21 knots from the middle of the day. Smooth to slight sea. Low, short swell from WSW. Excellent visibility.
semaphore stations
Station Saint-Clement Des Baleines located 15 km from La Tranche-sur-Mer
* +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