Weather diving spot Les portes de bassin

Batz-sur-Mer FRALon : -2°30’,291 W Lat : 47°12’,066 N Alt : 0m
thumbnail video thumbnail video
Weather Risk Briefing
Wed
05
-
-
- nd - km/h - bft - m/s - mph
- nd - km/h - bft - m/s - mph
Thu
06
-
-
- nd - km/h - bft - m/s - mph
- nd - km/h - bft - m/s - mph
Fri
07
-
-
- nd - km/h - bft - m/s - mph
- nd - km/h - bft - m/s - mph
Sat
08
-
-
- nd - km/h - bft - m/s - mph
- nd - km/h - bft - m/s - mph
Sun
09
-
-
- nd - km/h - bft - m/s - mph
- nd - km/h - bft - m/s - mph
Mon
10
-
-
- nd - km/h - bft - m/s - mph
- nd - km/h - bft - m/s - mph
Tue
11
-
-
- nd - km/h - bft - m/s - mph
- nd - km/h - bft - m/s - mph
Wed
12
-
-
- nd - km/h - bft - m/s - mph
- nd - km/h - bft - m/s - mph
Thu
13
-
-
- nd - km/h - bft - m/s - mph
- nd - km/h - bft - m/s - mph
Fri
14
-
-
- nd - km/h - bft - m/s - mph
- nd - km/h - bft - m/s - mph
Sat
15
-
-
- nd - km/h - bft - m/s - mph
- nd - km/h - bft - m/s - mph
Sun
16
-
-
- nd - km/h - bft - m/s - mph
- nd - km/h - bft - m/s - mph
Mon
17
-
-
- nd - km/h - bft - m/s - mph
- nd - km/h - bft - m/s - mph
Tue
18
-
-
- nd - km/h - bft - m/s - mph
- nd - km/h - bft - m/s - mph
Wed
19
-
-
- nd - km/h - bft - m/s - mph
- nd - km/h - bft - m/s - mph

BULLETIN

Reliability 80%
Wednesday 5 august Wednesday 5 aug
METEO CONSULT Run : 4/08 18Z Mesh : 1km Updated, 4h ago Update imminent

Wind

Average winds Average winds
Gusts
10m above ground level:
Direction
Speed
Gusts

Waves

Total sea (m) (m)
Swell height 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 Amount of precipitation (mm)
Type of precipitation Type of precipitation
Risks:
Precipitation risk Precipitation risk (%)
Storm risk. (%)
Brightness:
Visibility (km)
Pressure (hPa)
UV

Temperature

Air temp Air temp
Perceived temp
Air temp
Perceived temp
30
25
20
15
10
5
50
40
30
20
10
15
10
5
40
30
20
10
10
5
0
5
0
3
0
25
20
15
10
75
70
65
60
55
  • Thu 6
  • 04h
  • 05h
  • 06h
  • 07h
  • 08h
  • 09h
  • 10h
  • 11h
  • 12h
  • 13h
  • 14h
  • 15h
  • 16h
  • 17h
  • 18h
  • 19h
  • 20h
  • 21h
  • 22h
  • 23h
  • 00h
  • 01h
  • 02h
  • 03h
Run : 4/08 18Z Mesh : 1km Updated, 4h ago Update imminent
  • Thu 6
  • 04h
  • 05h
  • 06h
  • 07h
  • 08h
  • 09h
  • 10h
  • 11h
  • 12h
  • 13h
  • 14h
  • 15h
  • 16h
  • 17h
  • 18h
  • 19h
  • 20h
  • 21h
  • 22h
  • 23h
  • 00h
  • 01h
  • 02h
  • 03h
  • 265° W W
  • 265° W W
  • 275° W W
  • 270° W W
  • 270° W W
  • 285° W WNW
  • 295° NW WNW
  • 300° NW WNW
  • 290° W WNW
  • 285° W WNW
  • 270° W W
  • 270° W W
  • 270° W W
  • 270° W W
  • 275° W W
  • 280° W W
  • 285° W WNW
  • 290° W WNW
  • 295° NW WNW
  • 305° NW NW
  • 330° NW NNW
  • 355° N N
  • 5° N N
  • 5° N N
  • 10 19 5 12 3
  • 11 20 6 12 4
  • 11 20 6 12 4
  • 12 22 6 14 4
  • 12 22 6 14 4
  • 12 22 6 14 4
  • 11 21 6 13 4
  • 10 19 5 12 3
  • 9 17 5 11 3
  • 10 18 5 11 3
  • 10 18 5 11 3
  • 11 21 6 13 4
  • 13 24 7 15 4
  • 15 27 8 17 4
  • 16 29 8 18 5
  • 16 30 8 19 5
  • 17 32 9 20 5
  • 18 33 9 21 5
  • 18 34 9 21 5
  • 19 35 10 22 5
  • 17 32 9 20 5
  • 11 20 6 12 4
  • 10 18 5 11 3
  • 10 19 5 12 3
  • 14 26 7 16 4
  • 15 28 8 17 4
  • 16 29 8 18 5
  • 16 30 8 19 5
  • 17 31 9 19 5
  • 17 32 9 20 5
  • 17 31 9 19 5
  • 16 29 8 18 5
  • 14 26 7 16 4
  • 13 25 7 16 4
  • 14 26 7 16 4
  • 15 28 8 17 4
  • 17 32 9 20 5
  • 20 37 10 23 5
  • 21 39 11 24 6
  • 22 41 11 25 6
  • 24 44 12 27 6
  • 24 45 13 28 6
  • 25 47 13 29 6
  • 26 48 13 30 6
  • 25 47 13 29 6
  • 22 40 11 25 6
  • 16 29 8 18 5
  • 15 28 8 17 4
  • 0.9
  • 0.9
  • 0.9
  • 1
  • 1
  • 0.9
  • 0.9
  • 0.9
  • 0.9
  • 0.9
  • 0.9
  • 0.9
  • 0.9
  • 0.9
  • 0.9
  • 1
  • 1.1
  • 1.2
  • 1.3
  • 1.3
  • 1.2
  • 1
  • 0.9
  • 0.8
  • 0.6
  • 0.6
  • 0.5
  • 0.5
  • 0.4
  • 0.3
  • 0.3
  • 0.2
  • 0.2
  • 0.2
  • 0.4
  • 0.6
  • 0.7
  • 0.7
  • 0.7
  • 0.8
  • 1
  • 1.2
  • 1.2
  • 1.2
  • 0.8
  • 0.3
  • 0.2
  • 0.2
  • 220° SW SW
  • 225° SW SW
  • 230° SW SW
  • 245° SW WSW
  • 245° SW WSW
  • 245° SW WSW
  • 250° W WSW
  • 255° W WSW
  • 260° W WSW
  • 260° W W
  • 265° W W
  • 290° W WNW
  • 300° NW WNW
  • 225° SW SW
  • 220° SW SW
  • 230° SW SW
  • 230° SW SW
  • 230° SW SW
  • 230° SW SW
  • 240° SW WSW
  • 260° W W
  • 275° W W
  • 275° W W
  • 275° W W
  • 0.6
  • 0.7
  • 0.7
  • 0.8
  • 0.9
  • 0.9
  • 0.9
  • 0.9
  • 0.9
  • 0.9
  • 0.8
  • 0.6
  • 0.5
  • 0.5
  • 0.5
  • 0.5
  • 0.5
  • 0.2
  • 0.2
  • 0.3
  • 0.8
  • 1.0
  • 0.9
  • 0.8
  • 5
  • 5
  • 6
  • 6
  • 6
  • 6
  • 6
  • 6
  • 6
  • 6
  • 6
  • 5
  • 4
  • 5
  • 5
  • 5
  • 5
  • 5
  • 5
  • 6
  • 5
  • 5
  • 5
  • 6
  • 50
  • 50
  • 50
  • 50
  • 50
  • 50
  • 50
  • 50
  • 60
  • 60
  • 60
  • 60
  • 60
  • 60
  • 60
  • 50
  • 40
  • 40
  • 40
  • 40
  • 40
  • 45
  • 50
  • 50
  • 1.4
  • 1.8
  • 2.5
  • 3.4
  • 4.2
  • 4.6
  • 4.6
  • 4.3
  • 3.7
  • 3.0
  • 2.3
  • 1.8
  • 1.6
  • 1.7
  • 2.3
  • 3.1
  • 3.9
  • 4.4
  • 4.7
  • 4.5
  • 4.0
  • 3.3
  • 2.6
  • 2.0
  • 19 67
  • 19 67
  • 19 67
  • 19 67
  • 19 67
  • 19 67
  • 19 67
  • 20 67
  • 20 67
  • 20 67
  • 20 67
  • 20 68
  • 20 68
  • 20 68
  • 20 68
  • 20 68
  • 20 68
  • 20 68
  • 20 68
  • 20 67
  • 20 67
  • 19 67
  • 19 66
  • 19 66
  • 10
  • 0
  • 60
  • 50
  • 65
  • 80
  • 35
  • 60
  • 10
  • 15
  • 0
  • 5
  • 0
  • 0
  • 0
  • 0
  • 0
  • 0
  • 0
  • 10
  • 5
  • 0
  • 5
  • 10
  • 0.1
  • 0
  • 0
  • 0
  • 0
  • 0
  • 0
  • 0
  • 0
  • 0
  • 0
  • 0
  • 0
  • 0
  • 0
  • 0
  • 0
  • 0
  • 0
  • 0
  • 0
  • 0
  • 0
  • 0
  • -
  • -
  • -
  • -
  • -
  • -
  • -
  • -
  • -
  • -
  • -
  • -
  • -
  • -
  • -
  • -
  • -
  • -
  • -
  • -
  • -
  • -
  • -
  • 90
  • 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
  • 1018
  • 1018
  • 1018
  • 1019
  • 1020
  • 1020
  • 1020
  • 1021
  • 1021
  • 1021
  • 1021
  • 1021
  • 1021
  • 1021
  • 1021
  • 1022
  • 1022
  • 1022
  • 1023
  • 1023
  • 1024
  • 1024
  • 0
  • 0
  • 0
  • 0
  • 0
  • 1
  • 2
  • 3
  • 6
  • 7
  • 8
  • 7
  • 6
  • 4
  • 3
  • 1
  • 0
  • 0
  • 0
  • 0
  • 0
  • 0
  • 0
  • 0
  • 19 67
  • 19 67
  • 20 68
  • 20 67
  • 20 67
  • 19 67
  • 19 67
  • 19 67
  • 19 67
  • 20 67
  • 20 67
  • 20 67
  • 20 68
  • 20 68
  • 20 68
  • 20 68
  • 20 68
  • 20 68
  • 20 68
  • 20 68
  • 20 68
  • 20 67
  • 19 66
  • 18 65
  • 16 60
  • 16 60
  • 16 61
  • 16 60
  • 16 61
  • 17 62
  • 18 64
  • 20 67
  • 22 71
  • 23 73
  • 24 74
  • 23 74
  • 22 72
  • 21 70
  • 20 68
  • 21 70
  • 20 67
  • 18 64
  • 14 57
  • 17 63
  • 17 63
  • 16 60
  • 15 59
  • 15 58
Forecasts established in local time
Caption   Glossary

Expert opinion

For Les portes de bassin :
No gale warning.

We are 80% sure of the situation, because the high pressure system could move in more quickly than forecast.

Changeable skies becoming fairly cloud-free in the morning, sunny in the afternoon. No precipitation. In the evening, fair weather with mostly clear skies.
W force 4 in the morning becoming WNW force 5 in the evening. Gusts reaching 26 knots in the evening. Slight sea. Low, short swell from WSW. Excellent visibility.

semaphore stations

Station Pte De Chemoulin located 16 km from Les portes de bassin
WIND
WEATHER
Local time Dir.
(°)
Speed
(nd)
Gust
(nd)
Temp.
(°C)
Pressure
(hPa)
Visibility
(M)
04h
260
22
27
-
-
0
03h
270
20
29
-
-
0
02h
270
26
36
-
-
0
Nearby signal stations
Météo France - RADOME
Signal station weather

Tides at Le Croisic

66
Low tide 03h46 1.38m
High tide 09h25 4.67m
61
Low tide 16h09 1.59m
High tide 22h00 4.66m
www.shom.fr - © SHOM 2026 - Local times
Wed
05
-
-
- nd - km/h - bft - m/s - mph
- nd - km/h - bft - m/s - mph
Thu
06
-
-
- nd - km/h - bft - m/s - mph
- nd - km/h - bft - m/s - mph
Fri
07
-
-
- nd - km/h - bft - m/s - mph
- nd - km/h - bft - m/s - mph
Sat
08
-
-
- nd - km/h - bft - m/s - mph
- nd - km/h - bft - m/s - mph
Sun
09
-
-
- nd - km/h - bft - m/s - mph
- nd - km/h - bft - m/s - mph
Mon
10
-
-
- nd - km/h - bft - m/s - mph
- nd - km/h - bft - m/s - mph
Tue
11
-
-
- nd - km/h - bft - m/s - mph
- nd - km/h - bft - m/s - mph
Wed
12
-
-
- nd - km/h - bft - m/s - mph
- nd - km/h - bft - m/s - mph
Thu
13
-
-
- nd - km/h - bft - m/s - mph
- nd - km/h - bft - m/s - mph
Fri
14
-
-
- nd - km/h - bft - m/s - mph
- nd - km/h - bft - m/s - mph
Sat
15
-
-
- nd - km/h - bft - m/s - mph
- nd - km/h - bft - m/s - mph
Sun
16
-
-
- nd - km/h - bft - m/s - mph
- nd - km/h - bft - m/s - mph
Mon
17
-
-
- nd - km/h - bft - m/s - mph
- nd - km/h - bft - m/s - mph
Tue
18
-
-
- nd - km/h - bft - m/s - mph
- nd - km/h - bft - m/s - mph
Wed
19
-
-
- nd - km/h - bft - m/s - mph
- nd - km/h - bft - m/s - mph



        
English