Weather Gravelines & Les Hemmes de Marck - Detailed bulletin - Free 15-day Marine forecasts

Grand-Fort-Philippe FRALongitude : 2°5’,4 E Latitude : 51°0’,6 N Altitude : 0m

Wed

17

-

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

Thu

18

-

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

Fri

19

-

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

Sat

20

-

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

Sun

21

-

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

Mon

22

-

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

Tue

23

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

Wed

24

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

Thu

25

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

Fri

26

-

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

Sat

27

-

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

Sun

28

-

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

Mon

29

-

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

Tue

30

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

Wed

31

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

BULLETIN

(established in local time)

Reliability 95%

Wind alert - Warning moderate gale offshore.

Wednesday 17 december

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)

40

30

20

10

0

60

50

40

30

20

10

0

20

15

10

5

0

40

30

20

10

0

10

5

0

1.5

1

0.5

0

3

0

15

10

5

0

55

50

45

40

35

Thu 18

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

300° NW WNW
290° W WNW
290° W WNW
265° W W
255° W WSW
230° SW SW
225° SW SW
220° SW SW
220° SW SW
210° SW SSW
205° SW SSW
195° S SSW
190° S S
190° S S
190° S S
190° S S
190° S S
185° S S
185° S S
185° S S
185° S S
185° S S
190° S S
195° S SSW

5 9 3 6 2
5 9 3 6 2
5 10 3 6 2
6 11 3 7 2
6 12 3 7 3
7 13 4 8 3
8 14 4 9 3
8 14 4 9 3
10 18 5 11 3
10 19 5 12 3
11 20 6 12 4
11 21 6 13 4
11 21 6 13 4
11 21 6 13 4
12 23 6 14 4
13 24 7 15 4
13 25 7 16 4
14 26 7 16 4
14 26 7 16 4
15 27 8 17 4
15 28 8 17 4
15 28 8 17 4
16 29 8 18 5
17 31 9 19 5

8 15 4 9 3
9 16 4 10 3
10 19 5 12 3
10 18 5 11 3
10 19 5 12 -
12 22 6 14 4
13 25 7 16 4
13 25 7 16 4
17 31 9 19 5
17 32 9 20 5
19 35 10 22 5
19 36 10 22 5
20 37 10 23 5
21 38 11 24 5
22 41 11 25 6
24 44 12 27 6
25 46 13 29 6
26 48 13 30 6
26 48 13 30 6
26 48 13 30 6
27 50 14 31 7
28 52 14 32 7
29 54 15 34 7
31 57 16 35 7

0.4
0.4
0.4
0.4
0.4
0.4
0.4
0.4
0.5
0.5
0.5
0.6
0.6
0.6
0.6
0.7
0.8
0.8
0.8
0.9
0.9
1
1
1.1

0.8
0.8
0.8
0.8
0.8
0.8
0.8
0.9
1
1
1.1
1.3
1.3
1.3
1.3
1.4
1.5
1.6
1.6
1.7
1.8
1.8
1.9
2

0.1
0.1
0.1
0.1
0.1
0.1
0.2
0.3
0.4
0.3
0.4
0.5
0.4
0.4
0.4
0.5
0.6
0.6
0.5
0.5
0.6
0.7
0.6
0.9

315° NW NW
320° NW NW
325° NW NNW
335° NW NNW
340° N NNW
345° N NNW
345° N NNW
345° N NNW
340° N NNW
300° NW WNW
285° W WNW
275° W W
265° W W
260° W W
260° W W
260° W W
260° W W
260° W WSW
255° W WSW
255° W WSW
260° W W
260° W W
260° W W
265° W W

0.4
0.4
0.4
0.4
0.4
0.4
0.3
0.3
0.3
0.3
0.4
0.4
0.5
0.5
0.5
0.5
0.5
0.6
0.6
0.7
0.7
0.7
0.7
0.6

3
3
4
4
4
4
4
4
4
4
4
4
4
5
5
5
5
6
6
6
6
6
6
7

15
20
20
20
20
20
20
15
15
15
20
20
25
25
25
25
25
30
35
35
35
40
40
40

0.6
0.6
0.6
0.6
0.6
0.6
0.6
0.5
0.5
0.5
0.5
0.6
0.6
0.6
0.6
0.6
0.6
0.5
0.5
0.5
0.5
0.5
0.5
0.5

10 50
10 50
10 50
10 50
10 50
10 50
10 50
10 50
10 50
10 50
10 50
10 50
10 50
10 50
10 50
10 50
10 50
10 50
10 50
10 50
10 50
10 50
10 50
10 50

100
100
90
90
85
85
40
65
55
90
90
95
70
80
90
90
95
60
75
70
90
100
100
100

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
45

2.5
4
5
5
5
10
15
>20
>20
>20
>20
>20
>20
>20
>20
>20
>20
>20
>20
>20
>20
>20
>20
>20

1015
1016
1016
1017
1018
1018
1019
1018
1018
1017
1017
1017
1017
1016
1016
1016
1015
1015
1015
1014
1014
1014
1013
1013

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

9 49
9 48
9 48
9 47
8 47
8 47
9 47
9 48
10 50
10 50
10 50
9 48
8 47
8 46
8 46
8 46
8 46
7 45
8 46
8 46
8 46
8 46
8 47
9 47

8 46
7 45
7 44
6 43
6 42
6 43
7 44
8 46
8 46
8 46
7 44
5 42
4 40
4 39
3 38
3 38
3 37
3 37
3 37
3 37
3 37
3 37
3 38
3 37

9 16 3 4 10
8 15 3 4 9
10 18 3 5 11
8 15 3 4 9
8 15 3 4 9
11 20 4 6 12
14 26 4 7 16
15 28 4 8 17
17 31 5 9 19
21 39 6 11 24
24 44 6 12 27
25 47 6 13 29
26 49 6 14 30
28 52 7 14 32
29 53 7 15 33
29 54 7 15 34
30 56 7 16 35
31 57 7 16 35
31 58 7 16 36
32 60 7 17 37
33 61 7 17 38
33 62 8 17 39
33 61 7 17 38
33 61 7 17 38

0.5
0.4
0.4
0.4
0.4
0.4
0.4
0.4
0.5
0.7
0.9
1
1.1
1.2
1.3
1.4
1.5
1.6
1.7
1.8
2
2
2.1
2.2

Forecasts established in local time
Last updated 1h ago | Next update in 2h
Caption

Expert opinion

A southerly, very strong and variable flow prevails over the whole area.

For Gravelines & Les Hemmes de Marck :
Warning moderate gale offshore.

The reliability of the situation is assessed at 95%.

Skies very cloudy to overcast in the morning, very cloudy in the afternoon. No precipitation. In the evening, very cloudy.
No precipitation. W force 3 turning SSW force 4 in the middle of the day then S. Gusts reaching 26 knots in the evening. Smooth to slight sea becoming slight in the middle of the day. Low, short swell from NNW. Visibility reduced by mist becoming excellent in the middle of the day.

Tides at Nice

57

Low tide 00h47 0.45m

High tide 07h07 0.64m

60

Low tide 13h34 0.53m

High tide 18h25 0.62m

www.shom.fr - © SHOM 2025

Consult the tides for December

Wed

17

-

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

Thu

18

-

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

Fri

19

-

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

Sat

20

-

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

Sun

21

-

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

Mon

22

-

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

Tue

23

-

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

Wed

24

-

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

Thu

25

-

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

Fri

26

-

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

Sat

27

-

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

Sun

28

-

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

Mon

29

-

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

Tue

30

-

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

Wed

31

-

- 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 board sports area Gravelines &amp; Les Hemmes de Marck

BULLETIN

Wind

Waves

Weather

Temperature

Offshore

Expert opinion

Tides at Nice

Weather board sports area Gravelines & Les Hemmes de Marck