Le Sillon surf break

Le Sillon surfForecast / Brittany – Ile et Vilaine / France

information circle12 Day Weather and Surf, issued 7 pm Saturday 26 Jul 2025 CEST
Forecast update in hr  min  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
19.5° C
(Which is 1.9°C 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 0.8m 10s and forecast to arrive on Wednesday (Jul 30) at 11PM. Winds are predicted to be onshore at the time the swell arrives.

Wave TypeTime (CEST) & Date Wave Height & Period
Next good surf (1 star+)--
Best Surf--
Most Powerful11PM (Wed 30th Jul)2.5ft (0.8m) 10s

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

Updates in  hr  min  s Forecast update imminent

Short Range Forecast Mostly dry. Very mild (max 18°C on Sat night, min 17°C on Sat night). Wind will be generally light.

Days 3-6 Weather Summary Mostly dry. Warm (max 20°C on Wed night, min 16°C on Thu morning). Wind will be generally light.

Sunday
27
Monday
28
Tuesday
29
Wednesday
30
Thursday
31
Friday
01
Sat
02
NightAMPMNightAMPMNightAMPMNightAMPMNightAMPMNightAMPMNightAMPM
Rating
(10 max)
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 (m) & direction (?)
0.5
WNW
0.5
WNW
0.5
WNW
0.5
WNW
0.4
WNW
0.4
WNW
0.4
WNW
0.4
WNW
0.4
WNW
0.4
WNW
0.6
WNW
0.6
WNW
0.4
WNW
0.4
WNW
0.8
WNW
1.2
WNW
0.7
WNW
0.5
WNW
0.8
NW
0.7
WNW
0.7
NNW
Period(s) (?)1211111110109999881099668565
Wave
Graph
(?)Metric surfscale
Energy (?)10592847958475242353553446349101993843414831
Wind
(km/h)
20
NW
20
NW
20
NW
20
NW
20
NNW
25
NW
20
WNW
15
NW
20
NW
20
WNW
15
NW
20
NW
20
WNW
15
NW
20
NW
20
NW
20
NNW
25
NW
25
NNW
15
NW
20
NNW
Wind State (?)
onshore
cross-onshore
cross-shore
cross-offshore
offshore
glassy
ononononononononononononononononononcross-
on
onon
High Tide
/ height (m)
9:22PM
11.99
9:43AM
11.61
10:00PM
11.94
10:21AM
11.46
10:37PM
11.69
10:57AM
11.14
11:13PM
11.24
11:33AM
10.67
11:49PM
10.66
12:10PM
10.10
12:27AM
9.99
12:50PM
9.48
1:10AM
9.29
1:39PM
8.87
Low Tide
/ height (m)
4:16AM
1.44
4:31PM
1.78
4:52AM
1.61
5:05PM
2.02
5:26AM
1.97
5:39PM
2.40
5:59AM
2.46
6:11PM
2.90
6:31AM
3.03
6:44PM
3.46
7:06AM
3.63
7:22PM
4.04
7:45AM
4.23
Sunday
27
Monday
28
Tuesday
29
Wednesday
30
Thursday
31
Friday
01
Sat
02
Sunrise-6:33--6:35--6:37--6:37--6:39--6:41--6:41-
Sunset--9:52--9:52--9:50--9:49--9:47--9:45--9:45
part cloudpart cloudpart cloudpart cloudclearclearclearclearpart cloudclearclearclearclearclearclearpart cloudclearclearclearclearclear
Rain (mm)
---------------------
Temp. °C181818181718181718181819201719181819181717
Feels °C (?)151515151414151616171717181517161516141413
  • 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 Brittany - Ile et Vilaine

  1. weather stationWind Update Wind reports 9 km away suggest it is still onshore at Le Sillon (near gales from the NW at St Lunaire). A 0.7m local chop from the WNW

    Le Sillon
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1 h 4 min ago

57 km/h
NW
Onshore
Please reload the page to see if there are any updates.

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.

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