Ste Marguerite surfForecast / Loire Atlantique / France

information circle48hr Weather and Surf, issued 7 am Tuesday 21 Oct 2025 CEST
Forecast update in hr  min  s Forecast update imminent
Ste Marguerite surf forecast is for near shore open water. Breaking waves will often be smaller at less exposed spots.
Today's Ste Marguerite sea temperature is
16.1° C
(Which is normal for this time of year)


How big are the waves at Ste Marguerite today?

The current surf forecast for Ste Marguerite at 9AM is: 2.1m 11s primary swell from a West-southwest direction (forecast issued at 07:00am October 21). The wind direction is predicted to be cross-onshore.

Time (CEST) & DateWave HeightWave Period
Morning (21 Oct)7ft (2.1m)11s
Afternoon (21 Oct)5.5ft (1.7m)10s
Evening (21 Oct)5ft (1.5m)10s

Table - waves today at Ste Marguerite. (Swell directed towards the surf break)

Updates in  hr  min  s Forecast update imminent
Tuesday
21
Wednesday
22
Thursday
23
Fri
24
5AM8AM11AM2PM5PM8PM11PM2AM5AM8AM11AM2PM5PM8PM11PM2AM5AM8AM11AM2PM5PM8PM11PM2AM
Rating
(10 max)
0
0
0
0
0
2
3
1
2
3
2
1
0
0
0
0
0
0
0
0
0
0
0
0
Swell
Height Map
Wave Height (m) & direction (?)
2.5
WSW
2.1
WSW
1.9
WSW
1.8
WSW
1.7
WSW
1.5
WSW
1.8
WSW
1.5
WSW
1.7
WSW
2.3
WSW
2.2
WSW
1.8
WSW
1.7
WSW
1.9
SW
3
WSW
3.5
WSW
4
WSW
4.5
WSW
4.5
WSW
4
WSW
4
WSW
3.5
WSW
3
WSW
3
W
Period(s) (?)111111101010998889998111112131313121212
Wave
Graph
(?)Metric surfscale
Energy kJ (?)154610468086285293995393393636726124974695501272304338915442684958804899342026802470
Wind
(km/h)
30
W
25
WSW
25
WSW
30
WSW
25
WSW
10
WSW
10
ENE
15
NW
5
WNW
5
NNW
5
WNW
15
SSW
30
S
50
SW
60
SW
50
WSW
60
WSW
65
W
70
W
50
WNW
55
WNW
35
WNW
40
WNW
40
WNW
Wind State (?)
onshore
cross-onshore
cross-shore
cross-offshore
offshore
glassy
cross-
on
cross-
on
cross-
on
cross-
on
cross-
on
onoffcrossglassglasscross-
on
cross-
on
cross-
on
ononcross-
on
cross-
on
cross-
on
cross-
on
crosscrosscross-
on
cross-
on
cross-
on
High Tide
/ height (m)
5:10AM
4.35
5:21PM
4.43
5:34AM
4.44
5:47PM
4.43
6:00AM
4.46
6:15PM
4.37
Low Tide
/ height (m)
11:32AM
0.26
11:49PM
0.24
12:06PM
0.25
12:21AM
0.31
12:39PM
0.32
12:54AM
0.45
Tuesday
21
Wednesday
22
Thursday
23
Fri
24
Sunrise--8:34-------8:36-------8:37-----
Sunset----7:10-------7:09-------7:07---
cloud
part cloud
rain showers
cloud
cloud
light rain
mod rain
cloud
cloud
part cloud
cloud
cloud
light rain
thunderstorm
thunderstorm
rain showers
thunderstorm
thunderstorm
rain showers
rain showers
rain showers
part cloud
light rain
cloud
Rain (mm)
--1--47-----221112211-1-
Temp. °C161616161615141414141415151818161412131413131313
Feels °C (?)1112121012141312141413131111873-1-142544
  • Map Icons:
  • Break
  • Live Wave Height (m)
  • Live Wind Speed (km/h)
  • Surf Rating (10 Max)
  • Ocean Swells (m)
  • Wind Speed (km/h)
Map placeholder

Eyeball surf reportRecent Eyeball Surf Reports for Loire Atlantique

  1. weather stationWind Update Wind reports 15 km away suggest it is still onshore at Ste Marguerite (light winds from the WSW at Saint -Nazaire -Montoir). A 1.6m groundswell from the WSW

    Ste Marguerite
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1 h 31 min ago

15 km/h
WSW
Onshore
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