Weather forecast Cassy - Port de Lanton - Live bulletin - Free 15-day Marine forecasts

Lanton FRALon : -1°3’,402 W Lat : 44°42’,498 N Alt : 0m

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BULLETIN

(* established in local time)

Reliability 85%

Wind alert - Warning fresh gale offshore.

Wednesday 21 jan

METEO CONSULT Run : 20/01 16Z Mesh : 1km Updated, 9h ago Update imminent

Wind

Average winds

Gusts

10m above ground level:

Direction

Speed

Gusts

Waves

Total sea (m) (m)

Swell (m) (m)

Total sea (m)

Swell height (m)

Weather

Rain (mm) (mm)

Precipitation:

Amount of precipitation (mm)

Type of precipitation

Risks:

Precipitation risk (%)

Temperature

Air temp

Perceived temp

Air temp

Perceived temp

20

15

10

5

35

30

25

20

15

10

5

0

20

15

10

5

10

5

0

0.5

0

3

0

10

5

0

45

40

35

                    45
                    02h45
                
                    50
                    02h50
                
                    55
                    02h55
                
                    03h00
                    03h00
                
                    05
                    03h05
                
                    10
                    03h10
                
                    15
                    03h15
                
                    20
                    03h20
                
                    25
                    03h25
                
                    30
                    03h30
                
                    35
                    03h35
                
                    40
                    03h40
                
                    45
                    03h45
                
                    50
                    03h50
                
                    55
                    03h55
                
                    04h00
                    04h00
                
                    05
                    04h05
                
                    10
                    04h10
                
                    15
                    04h15
                
                    20
                    04h20
                
                    25
                    04h25
                
                    30
                    04h30
                
                    35
                    04h35
                
                    40
                    04h40
                
                        Run : 20/01 16Z
                Mesh : 1km
                Updated, 9h ago
                Update imminent

45 02h45
50 02h50
55 02h55
03h00 03h00
05 03h05
10 03h10
15 03h15
20 03h20
25 03h25
30 03h30
35 03h35
40 03h40
45 03h45
50 03h50
55 03h55
04h00 04h00
05 04h05
10 04h10
15 04h15
20 04h20
25 04h25
30 04h30
35 04h35
40 04h40

155° SE SSE
155° SE SSE
155° SE SSE
155° SE SSE
155° SE SSE
155° SE SSE
155° SE SSE
155° SE SSE
155° SE SSE
155° SE SSE
155° SE SSE
155° SE SSE
155° SE SSE
155° SE SSE
155° SE SSE
155° SE SSE
155° SE SSE
155° SE SSE
155° SE SSE
155° SE SSE
150° SE SSE
150° SE SSE
150° SE SSE
150° SE SSE

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 14 4 9 3
8 14 4 9 3
8 15 4 9 3
8 15 4 9 3
8 15 4 9 3
8 15 4 9 3
8 15 4 9 3
8 15 4 9 3
8 15 4 9 3
8 15 4 9 3
8 15 4 9 3
8 15 4 9 3
8 15 4 9 3
8 15 4 9 3
8 15 4 9 3
8 15 4 9 3
8 15 4 9 3
8 15 4 9 3
8 15 4 9 3

15 27 8 17 4
15 27 8 17 4
15 27 8 17 4
15 27 8 17 4
15 27 8 17 4
15 28 8 17 4
15 28 8 17 4
15 28 8 17 4
15 28 8 17 4
15 28 8 17 4
16 29 8 18 5
16 29 8 18 5
16 29 8 18 5
16 29 8 18 5
16 29 8 18 5
16 30 8 19 5
16 30 8 19 5
16 30 8 19 5
16 30 8 19 5
16 30 8 19 5
17 31 9 19 5
17 31 9 19 5
17 31 9 19 5
17 31 9 19 5

0.3
0.3
0.3
0.3
0.3
0.3
0.3
0.3
0.3
0.3
0.3
0.3
0.3
0.3
0.3
0.3
0.3
0.3
0.3
0.3
0.3
0.3
0.3
0.3

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
0.2
0.2
0.2
0.2
0.2
0.2
0.2
0.2
0.2
0.2

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

6 43
6 43
6 43
6 43
6 43
6 43
6 43
6 43
6 43
6 43
6 43
6 43
6 44
6 44
6 44
7 44
7 44
7 44
7 44
7 44
7 44
7 44
7 44
7 44

3 38
3 38
3 38
3 38
3 38
3 38
3 38
3 38
3 38
3 38
3 38
3 38
4 38
4 38
4 38
4 38
4 38
4 38
4 38
4 38
4 39
4 39
4 39
4 39

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 971 hPa centered at 110 nautical miles in the South-West of Fastnet Rock (South-West Ireland) moving at 20 knots to the North-North-East and rising to 978 hPa to be centered on the North of Ireland.

For Cassy - Port de Lanton :
Warning fresh gale offshore.

We are 85% sure of the situation, because the atmosphere might be less unstable and showers rarer than forecast.

Cloudy spells, dense at times in the morning, very cloudy skies becoming totally covered in the afternoon. No precipitation in the morning, light showers in the afternoon. In the evening, overcast skies.
Showers towards the end of the night. SSE wind force 4 continuing all day. Gusts reaching 25 knots in the middle of the day. Smooth sea. Low, long swell from WNW. Excellent visibility.

Tides at Arcachon

84

Low tide 00h50 0.68m

High tide 07h00 4.29m

85

Low tide 13h14 0.6m

High tide 19h19 4.06m

www.shom.fr - © SHOM 2026

Consult the tides for January

Go further

Wed

21

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

Thu

22

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Fri

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Sat

24

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Sun

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Mon

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Tue

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Wed

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* +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 Cassy - Port de Lanton

BULLETIN

Wind

Waves

Weather

Temperature

Expert opinion

Tides at Arcachon

Go further