Weather Plage du Gros Jonc - Detailed bulletin - Free 15-day Marine forecasts

Les Portes-en-Ré (17880)Longitude : -1°29’,2836 W Latitude : 46°15’,066 N Altitude : 0m

Thu

21

-

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

Fri

22

-

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

Sat

23

-

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

Sun

24

-

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

Mon

25

-

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

Tue

26

-

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

Wed

27

-

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

Thu

28

-

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

Fri

29

-

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

Sat

30

-

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

Sun

31

-

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

Mon

01

-

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

Tue

02

-

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

Wed

03

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

Thu

04

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

BULLETIN

(established in local time)

Reliability 90%

No gale warning.

Thursday 21 august

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)

20

15

10

5

0

40

30

20

10

0

10

5

0

25

20

15

10

5

0

10

5

0

0.5

0

3

0

30

25

20

15

10

90

80

70

60

50

Fri 22

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

150° SE SSE
0° 0 0
5° N N
20° N NNE
25° NE NNE
25° NE NNE
30° NE NNE
25° NE NNE
25° NE NNE
35° NE NNE
40° NE NE
40° NE NE
35° NE NNE
25° NE NNE
345° N NNW
305° NW NW
290° W WNW
290° W WNW
290° W WNW
290° W WNW
290° W WNW
330° NW NNW
10° N N
25° NE NNE

12 23 6 14 4
10 18 5 11 3
10 18 5 11 3
9 17 5 11 3
9 16 4 10 3
8 15 4 9 3
8 15 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
6 11 3 7 2
4 8 2 5 2
3 5 1 3 1
5 10 3 6 2
9 16 4 10 3
12 22 6 14 4
12 22 6 14 4
11 21 6 13 4
9 16 4 10 3
6 11 3 7 2
6 12 3 7 3
8 14 4 9 3

17 32 9 20 5
16 29 8 18 5
16 29 8 18 5
15 27 8 17 4
14 26 7 16 4
13 24 7 15 4
13 24 7 15 4
12 22 6 14 4
12 22 6 14 4
12 22 6 14 4
12 23 6 14 4
13 24 7 15 4
13 24 7 15 4
11 20 6 12 4
10 18 5 11 3
11 20 6 12 4
13 25 7 16 4
16 30 8 19 5
18 34 9 21 5
18 33 9 21 5
17 31 9 19 5
15 28 8 17 4
13 25 7 16 4
13 24 7 15 4

0.3
0.3
0.3
0.3
0.3
0.3
0.3
0.3
0.3
0.3
0.2
0.3
0.3
0.3
0.3
0.3
0.3
0.4
0.3
0.4
0.4
0.4
0.2
0.3

0.7
0.6
0.7
0.7
0.7
0.6
0.6
0.7
0.7
0.6
0.5
0.6
0.6
0.7
0.6
0.7
0.7
0.8
0.7
0.8
0.8
0.8
0.5
0.5

0.1
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
0.2
0.2
0.3
0.1
0.1
0.1

280° W W
285° W WNW
295° NW WNW
295° NW WNW
270° W W
270° W W
270° W W
265° W W
265° W W
180° S S
285° W WNW
185° S S
180° S S
250° W WSW
270° W W
265° W W
265° W W
225° SW SW
225° SW SW
225° SW SW
230° SW SW
145° SE SE
285° W WNW
280° W WNW

0.2
0.2
0.2
0.3
0.3
0.2
0.2
0.3
0.3
0.3
0.2
0.3
0.3
0.2
0.3
0.3
0.3
0.3
0.3
0.3
0.3
0.3
0.2
0.2

4
4
5
5
7
7
7
8
9
10
8
11
11
9
10
11
11
11
11
11
10
9
9
9

35
30
190
190
190
190
180
180
180
170
150
170
180
150
200
200
200
190
170
150
150
160
160
90

1.8
2.5
3.5
4.5
5.3
5.6
5.5
4.8
3.7
2.6
1.8
1.4
1.7
2.4
3.4
4.5
5.4
5.9
5.9
5.2
4.1
2.9
1.8
1.2

19 67
19 67
19 66
19 66
19 66
19 66
19 66
19 66
19 66
19 66
19 66
19 66
19 66
19 66
19 67
19 67
19 67
19 67
19 67
19 67
19 67
19 67
20 67
20 67

80
85
70
90
100
95
70
90
80
85
55
75
35
30
30
35
45
20
10
25
25
25
10
5

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

1018
1018
1019
1019
1018
1018
1018
1019
1019
1019
1019
1020
1020
1020
1020
1019
1019
1019
1019
1019
1019
1019
1019
1019

0
0
0
0
0
0
0
0
0
0
1
2
5
6
6
6
4
3
2
1
0
0
0
0

19 66
19 66
19 65
18 65
18 65
18 65
18 64
17 63
17 63
18 64
18 65
19 66
20 68
21 70
22 71
22 72
22 72
22 71
22 71
21 70
21 70
20 69
20 68
20 67

15 58
16 60
15 59
15 59
15 59
15 59
15 59
14 58
15 59
16 61
18 64
20 67
25 78
28 82
29 85
29 83
27 80
25 77
24 75
23 73
22 71
21 70
20 69
17 62

13 24 4 7 15
12 23 4 6 14
13 24 4 7 15
12 23 4 6 14
12 22 4 6 14
11 21 4 6 13
11 20 4 6 12
10 18 3 5 11
10 18 3 5 11
10 18 3 5 11
9 17 3 5 11
9 16 3 4 10
8 14 3 4 9
5 10 2 3 6
5 10 2 3 6
8 15 3 4 9
10 19 3 5 12
13 24 4 7 15
13 25 4 7 16
13 25 4 7 16
13 24 4 7 15
10 19 3 5 12
8 14 3 4 9
9 17 3 5 11

0.9
0.8
0.8
0.7
0.7
0.6
0.6
0.6
0.6
0.7
0.7
0.7
0.7
0.7
0.7
0.7
0.7
0.7
0.7
0.8
0.8
0.9
0.9
0.9

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

Expert opinion

A northerly and mostly variable flow prevails over the South and the East of the basin. Over the North-West, it is southerly, weak and mostly variable.

For Plage du Gros Jonc :
No gale warning.

We are 90% sure of the situation, because the cloud system may be more intense than predicted.

In the evening, very cloudy.
No precipitation. WNW wind force 5. Gusts reaching 23 knots in the evening. Smooth sea. Low, short swell from WNW. Excellent visibility.

Tides at Ile-de-Ré (Saint-Martin)

67

High tide 04h33 5.46m

Low tide 10h12 1.81m

73

High tide 16h50 5.78m

Low tide 22h46 1.41m

www.shom.fr - © SHOM 2025

Consult the tides for August

Thu

21

-

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

Fri

22

-

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

Sat

23

-

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

Sun

24

-

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

Mon

25

-

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

Tue

26

-

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

Wed

27

-

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

Thu

28

-

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

Fri

29

-

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

Sat

30

-

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

Sun

31

-

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

Mon

01

-

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

Tue

02

-

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

Wed

03

-

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

Thu

04

-

- 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 beach Plage du Gros Jonc

BULLETIN

Wind

Waves

Weather

Temperature

Offshore

Expert opinion

Tides at Ile-de-Ré (Saint-Martin)