Surf Forecast Surf Report
Le Sillon surf break

Le Sillon surfForecast / Brittany – Ile et Vilaine / France

information circle12 Day Weather and Surf, issued 7 am Sunday 18 May 2025 CEST
Forecast update in 1hr 47 min 17 s Forecast update imminent
Le Sillon surf forecast is for near shore open water. Breaking waves will often be smaller at less exposed spots.
Today's Le Sillon sea temperature is
57.7°F
(Which is 2.7°F warmer than normal for this time of year)


Best Forecast Surf Conditions for Le Sillon this week:

The most powerful waves expected at Le Sillon in the next 12 days are 3ft 9s and forecast to arrive on Sunday (May 25) at 2PM. Winds are predicted to be onshore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 2ft 4s period and expected on Monday (May 19) at 5AM.

Wave TypeTime (CEST) & Date Wave Height & Period
Next good surf (1 star+)--
Best Surf--
Most Powerful 2PM (Sun 25th May)2.5ft (0.8m) 9s

Table - best surf conditions forecast for Le Sillon over the next 12 days.

Updates in 1 hr 47 min 17 s Forecast update imminent
Sunday
18
Monday
19
Tuesday
20
Wednesday
21
Thursday
22
Friday
23
Saturday
24
Sunday
25
Monday
26
Tuesday
27
Wednesday
28
Thursday
29
AMPMNightAMPMNightAMPMNightAMPMNightAMPMNightAMPMNightAMPMNightAMPMNightAMPMNightAMPMNightAMPMNightAMPMNight
Rating
(10 max)
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
Swell
Height Map
Wave Height (ft) & direction (?)
1
WNW
1
WNW
2
NE
0.5
W
0.5
W
2.5
NNE
1
WNW
1
WNW
1.5
WNW
1
WNW
3
NW
3
NW
2
NW
3
NW
1.5
NW
0.5
WNW
0.5
W
0.5
WNW
1
WNW
1
WNW
2.5
WNW
1.5
WNW
3
WNW
3
WNW
2
WNW
1.5
WNW
1
WNW
3
WNW
4
WNW
4.5
WNW
4
WNW
4.5
WNW
4.5
WNW
4.5
WNW
4.5
WNW
4.5
WNW
Period(s) (?)1111410941112111045544889996995910108910101011121111
Wave
Graph
(?)Metric surfscale
Energy (?)232388615242638202732162487581716332912438616319112222334248301513454475441
Wind
(mph)
10
ENE
15
N
10
ENE
10
NE
15
NNE
10
NE
10
NNE
15
NNW
5
NNW
10
NW
10
NW
10
NW
10
NNW
10
NW
10
NW
5
WNW
10
NW
10
WSW
10
WSW
15
WSW
10
WSW
10
W
10
WNW
10
WNW
5
WSW
5
NNW
15
SSW
20
S
20
W
20
WSW
20
W
20
WNW
20
WSW
15
W
10
NW
10
SSW
Wind State (?)
onshore
cross-onshore
cross-shore
cross-offshore
offshore
glassy
cross-
off
cross-
on
cross-
off
crosscross-
on
crosscross-
on
cross-
on
onononononononcross-
on
oncross-
on
crosscross-
on
cross-
on
cross-
on
ononcrossglasscross-
off
cross-
off
cross-
on
crosscross-
on
oncross-
on
cross-
on
oncross-
off
High Tide
/ height (ft)
11:18AM
32.35
11:39PM
32.71
12:09PM
30.87
12:35AM
31.43
1:15PM
29.76
1:49AM
30.64
2:41PM
29.69
3:16AM
31.2
4:03PM
31.2
4:31AM
33.11
5:06PM
33.63
5:30AM
35.53
5:59PM
36.19
6:22AM
37.8
6:47PM
38.42
7:09AM
39.5
7:32PM
40
7:55AM
40.36
8:17PM
40.68
8:40AM
40.29
9:00PM
40.45
9:24AM
39.31
9:44PM
39.37
Low Tide
/ height (ft)
6:12PM
12.76
6:45AM
12.27
7:07PM
13.68
7:45AM
12.86
8:11PM
14.04
8:52AM
12.76
9:22PM
13.55
10:03AM
11.81
10:34PM
12.14
11:11AM
10.11
11:40PM
10.01
12:12PM
8.1
12:38AM
7.71
1:06PM
6.23
1:32AM
5.74
1:57PM
4.92
2:22AM
4.43
2:45PM
4.36
3:10AM
3.94
3:32PM
4.66
3:57AM
4.33
4:18PM
5.68
4:44AM
5.48
Sunday
18
Monday
19
Tuesday
20
Wednesday
21
Thursday
22
Friday
23
Saturday
24
Sunday
25
Monday
26
Tuesday
27
Wednesday
28
Thursday
29
Sunrise6:22--6:22--6:20--6:20--6:18--6:18--6:16--6:16--6:15--6:13--6:13--6:11--
Sunset-9:45--9:45--9:47--9:49--9:50--9:51--9:52--9:53--9:54--9:55--9:57--9:58-
clearclearclearclearclearclearclearpart cloudpart cloudlight rainlight rainclearclearpart cloudpart cloudclearpart cloudlight raincloudlight rainpart cloudpart cloudpart cloudpart cloudpart cloudpart cloudcloudlight rainrain showerspart cloudcloudthunderstorm clearrain showersrain showersrain showers
Rain (in)
---------0.00.1------0.0-0.1-------0.10.2--0.1-0.00.00.0
Temp. °F556363556663556159575257575959575959596161595959556159596361575755555757
Feels °F (?)505452505752485452524854525454545455545755545252525955485446454543454852

Short Range Forecast: Mostly dry. Very mild (max 66°F on Mon afternoon, min 52°F on Sun morning). Mainly fresh winds.

Days 3-6 Weather Summary Light rain (total 0.2in), mostly falling on Wed afternoon. Very mild (max 59°F on Thu afternoon, min 52°F on Wed afternoon). Wind will be generally light.

Days 6-9 Weather Summary Light rain (total 0.1in), mostly falling on Sat afternoon. Very mild (max 61°F on Sat afternoon, min 54°F on Mon morning). Winds increasing (calm on Mon afternoon, fresh winds from the SSW by Mon night).

Long Range Forecast: Moderate rain (total 0.5in), heaviest on Tue afternoon. Very mild (max 63°F on Tue afternoon, min 52°F on Wed night). Winds decreasing (strong winds from the SW on Tue night, light winds from the WNW by Thu night).

Join to view 12 day and hourly surf forecasts

By creating an account you agree to Surf-Forecast Terms & Services

Already have an account? Log in

  • Map Icons:
  • Break
  • Live Wave Height (ft)
  • Live Wind Speed (mph)
  • Surf Rating (10 Max)
  • Ocean Swells (ft)
  • Wind Speed (mph)
<span class="translation_missing" title="translation missing: en.leaflet.map_placeholder_alt">Map Placeholder Alt</span>
submit an eyeball surf report

Quick surf report for Le Sillon:

join our community of surf reporters

FREE! Surf-Forecast.com widget for your website

The surf report / weather widget below is available to embed on third party websites free of charge and provides a summary of our Le Sillon surf forecast. Simply grab the html code snippet that we provide and paste it into your own site. You can choose your preferred language and metric/imperial units for the surf forecast feed to suit users of your site. Click here to get the code.


Information about the Le Sillon Surf forecast

The above surf forecast table for Le Sillon provides essential information for determining whether the surfing conditions will be good over the next 12 days. A general guide to surfing at Le Sillon can be found by selecting the local surf guide option on the grey menu. Our Le Sillon surf forecast is unique since it includes wave energy (power) that defines the real feel of the surf rather than just the height or the period. If you surf the same spot (Le Sillon) regularly then make a mental note of the wave energy from the surf forecast table each time you go. Very soon you may start to choose your surf days based on the wave energy alone combined with our forecast of favourable offshore wind conditions. Our star ratings will help here and of course you will also find the usual wave height and period predictions on our surf forecasts as well as a full break down of the swell components under our advanced users option (to reveal that, click the little Einstein character under the tide times).

Further information to help with frequently asked questions about our surf forecast for Le Sillon may be found under the help tab on the top menu and also by moving your mouse over the question marks on the surf forecast table itself. Please always bear in mind that the forecast is for near-shore open water and local factors at each surf break influence the actual breaking wave height, such as the beach / reef profile, water depths offshore and shelter.

Are you planning a holiday in Ile et Vilaine - Brittany? If you are looking for accommodation near Le Sillon, camping, hotels and holiday cottages in Ile et Vilaine - Brittany, consider staying in Saint Malo which is 2 km (1 miles) away. Other places in and around Ile et Vilaine - Brittany where you can find information about places to rent, and car hire include Cancale which is 9 km (6 miles) away, Granville, Saint-Brieuc and Saint Helier.

Nearest
Nearest