Weather Port Saint-Nicolas - Detailed bulletin - Free 15-day Marine forecasts

Groix FRALon : -3°29’,136 W Lat : 47°37’,926 N Alt : 8m

Wed

20

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Thu

21

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Fri

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Sat

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Sun

24

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Mon

25

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Tue

26

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Wed

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Thu

28

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Fri

29

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Sat

30

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Sun

31

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Mon

01

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Tue

02

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Wed

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BULLETIN

Reliability 90%

No gale warning.

Marine wind risk

Wednesday 20 may

METEO CONSULT Run : 20/05 00Z Mesh : 1km Updated, 3h ago Update in 3h

Wind

Average winds

Gusts

10m above ground level:

Direction

Speed

Gusts

Waves

Total sea (m) (m)

Swell (m) (m)

legend.title.wave_height

Total sea (m)

legend.title.wind_sea

Wind (m)

legend.title.swell

Swell direction

Swell height (m)

Swell period (s)

Wave length (m)

High tide (m)

Sea temp

Weather

Rain (mm) (mm)

Clouds:

Cloud cover (%)

Precipitation:

Amount of precipitation (mm)

Type of precipitation

Risks:

Precipitation risk (%)

Storm risk. (%)

Brightness:

Visibility (km)

Pressure (hPa)

UV

Temperature

Air temp

Perceived temp

Air temp

Perceived temp

20

15

10

5

0

40

30

20

10

0

10

5

0

25

20

15

10

5

0

10

5

0

2

1.5

1

3

0

25

20

15

10

5

70

60

50

40

                                    
                                                                         Thu 21
                                                            
                    10h
                
                    11h
                
                    12h
                
                    13h
                
                    14h
                
                    15h
                
                    16h
                
                    17h
                
                    18h
                
                    19h
                
                    20h
                
                    21h
                
                    22h
                
                    23h
                
                    00h
                
                    01h
                
                    02h
                
                    03h
                
                    04h
                
                    05h
                
                    06h
                
                    07h
                
                    08h
                
                    09h
                
                        Run : 20/05 00Z
                Mesh : 1km
                Updated, 3h ago
                Update in 3h

Thu 21

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

240° SW WSW
240° SW WSW
235° SW SW
235° SW SW
235° SW SW
225° SW SW
225° SW SW
225° SW SW
225° SW SW
225° SW SW
225° SW SW
205° SW SSW
190° S S
185° S S
180° S S
165° S SSE
155° SE SSE
145° SE SE
140° SE SE
135° SE SE
125° SE SE
105° E ESE
105° E ESE
105° E ESE

12 22 6 14 4
11 21 6 13 4
10 19 5 12 3
9 17 5 11 3
8 15 4 9 3
8 14 4 9 3
8 14 4 9 3
7 13 4 8 3
6 12 3 7 3
5 10 3 6 2
5 9 3 6 2
4 7 2 4 2
4 8 2 5 2
5 9 3 6 2
4 8 2 5 2
4 8 2 5 2
4 8 2 5 2
5 9 3 6 2
5 10 3 6 2
6 11 3 7 2
6 12 3 7 3
6 12 3 7 3
9 16 4 10 3
10 19 5 12 3

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

1.7
1.6
1.5
1.5
1.4
1.5
1.5
1.6
1.6
1.5
1.6
1.6
1.4
1.3
1.2
1.1
1
1
1.1
1.2
1.1
1.1
1.1
1.1

0.5
0.4
0.3
0.4
0.3
0.1
0.1
0.1
0.1
0
0
0
0
0
0
0
0
0
0
0
0
0
0.1
0.2

240° SW WSW
240° SW WSW
245° SW WSW
245° SW WSW
290° W WNW
245° SW WSW
245° SW WSW
245° SW WSW
245° SW WSW
245° SW WSW
245° SW WSW
245° SW WSW
245° SW WSW
245° SW WSW
245° SW WSW
245° SW WSW
245° SW WSW
245° SW WSW
245° SW WSW
245° SW WSW
245° SW WSW
245° SW WSW
245° SW WSW
245° SW WSW

1.5
1.4
1.4
1.3
1.2
1.3
1.3
1.4
1.4
1.5
1.6
1.6
1.4
1.3
1.2
1.1
1.0
1.0
1.0
1.2
1.1
1.1
1.1
1.0

10
10
11
11
11
11
11
10
10
11
11
11
11
11
10
10
10
10
10
10
9
9
9
9

170
180
190
200
190
200
200
200
200
200
200
200
200
190
190
180
180
170
170
150
140
140
140
130

4.0
3.2
2.2
1.6
1.3
1.4
2.0
2.9
3.8
4.6
4.9
4.8
4.3
3.5
2.6
1.8
1.3
1.2
1.5
2.1
3.0
3.8
4.4
4.6

14 57
14 57
14 58
14 58
15 58
15 59
15 59
15 60
16 60
16 60
16 60
16 60
16 60
16 60
15 60
15 60
15 60
15 59
15 59
15 59
15 59
15 59
15 59
15 59

100
100
100
75
65
60
40
50
60
60
60
65
70
65
60
35
30
35
30
35
30
40
65
65

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

1024
1024
1025
1025
1025
1025
1026
1026
1026
1026
1026
1026
1027
1027
1027
1027
1027
1027
1026
1026
1026
1026
1026
1026

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

16 60
16 60
16 60
16 61
16 61
16 61
17 62
17 62
17 62
16 61
16 60
15 59
15 58
14 58
14 57
13 56
13 55
12 54
12 54
12 53
11 53
11 52
12 53
13 55

11 52
12 53
12 54
19 66
19 65
20 68
20 68
19 67
19 66
18 64
16 61
15 58
13 55
12 54
12 54
12 53
11 52
11 51
10 50
10 49
9 48
9 47
9 48
10 51

Forecasts established in local time
Caption Glossary

Expert opinion

For Port Saint-Nicolas :
No gale warning.

The reliability of the situation is assessed at 90%.

Overcast in the morning, good clear periods with lots of cloud in the afternoon. No precipitation. In the evening, good clear periods but cloud building.
No precipitation. SW force 4 becoming force 3 in the middle of the day then SSW. Gusts reaching 20 knots in the morning. Moderate sea. Moderate, fairly long swell from WSW temporarily low in the middle of the day. Excellent visibility becoming good in the middle of the day then good.

semaphore stations

Station Ile De Groix located 3 km from Port Saint-Nicolas

	WIND			WEATHER
Local time	Dir. (°)	Speed (nd)	Gust (nd)	Temp. (°C)	Pressure (hPa)	Visibility (M)
10h	240	20	39	15.3	-	0
09h	230	27	36	14.5	-	0
08h	230	25	38	14.3	-	6

observation.semaphores_link

Météo France - RADOME

observation.semaphore_link

Tides at Port-Tudy

87

Low tide 01h52 0.95m

High tide 08h03 4.87m

81

Low tide 14h09 1.25m

High tide 20h17 4.96m

www.shom.fr - © SHOM 2026 - Local times

Consult the tides for May

Go further

Wed

20

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

Thu

21

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

Fri

22

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

Sat

23

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

Sun

24

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

Mon

25

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

Tue

26

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

Wed

27

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

Thu

28

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

Fri

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Sat

30

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

Sun

31

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

Mon

01

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

Tue

02

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

Wed

03

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- 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 anchorage Port Saint-Nicolas

BULLETIN

Wind

Waves

Weather

Temperature

Expert opinion

semaphore stations

Tides at Port-Tudy

Go further