- Forecast
- Maps
- Live
- Weather State
- Spot Information
Le Sillon Surf Forecast
/ Brittany – Ile et Vilaine (5 surf breaks) /
Le Sillon surfForecast / Brittany – Ile et Vilaine / France
12 Day Weather and Surf, issued 12 pm Tuesday 25 Mar 2025 CET
Best Forecast Surf Conditions for Le Sillon this week:
The surf forecast for Le Sillon over the next 12 days: The first swell (rated 1 star or higher) is forecast to arrive on Thursday (Mar 27) at 1AM. The primary swell is predicted to be 0.5m and 13s period with a secondary swell of 0.2m and 13s. Another secondary swell of 0.2m and 3s is also forecast. The wind is predicted to be cross-offshore as the swell arrives.
The most powerful waves expected at Le Sillon in the next 12 days are 1.6m 12s and forecast to arrive on Saturday (Mar 29) at 4AM. Winds are predicted to be onshore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 0.3m 2s period and expected on Tuesday (Apr 01) at 8AM.
| Wave Type | Time (CET) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | 1AM (Thu 27th Mar) | 1.5ft (0.5m) 13s |
| Best Surf | 1AM (Thu 27th Mar) | 1.5ft (0.5m) 13s |
| Most Powerful | 4AM (Sat 29th Mar) | 5ft (1.6m) 12s |
Table - best surf conditions forecast for Le Sillon over the next 12 days.
Tuesday 25 | Wednesday 26 | Thursday 27 | Friday 28 | Saturday 29 | Sunday 30 | Monday 31 | Tuesday 01 | Wednesday 02 | Thursday 03 | Friday 04 | Saturday 05 | |||||||||||||||||||||||||
| AM | PM | Night | AM | PM | Night | AM | PM | Night | AM | PM | Night | AM | PM | Night | AM | PM | Night | AM | PM | Night | AM | PM | Night | AM | PM | Night | AM | PM | Night | AM | PM | Night | AM | PM | Night | |
Rating (10 max) | ||||||||||||||||||||||||||||||||||||
Swell Height Map |  |  |  |  |  |  |  |  |  |  |  |  | ||||||||||||||||||||||||
| Wave Height (m) & direction (?) | ||||||||||||||||||||||||||||||||||||
| Period(s) (?) | 10 | 10 | 9 | 12 | 11 | 13 | 11 | 11 | 11 | 12 | 6 | 7 | 12 | 12 | 12 | 11 | 11 | 10 | 10 | 11 | 12 | 13 | 12 | 11 | 11 | 12 | 12 | 11 | 11 | 10 | 10 | 10 | 13 | 12 | 11 | 11 |
Wave (?)Graph  | ||||||||||||||||||||||||||||||||||||
| Energy (?) | 38 | 18 | 17 | 77 | 59 | 82 | 41 | 40 | 66 | 83 | 160 | 215 | 405 | 269 | 153 | 93 | 91 | 86 | 85 | 69 | 78 | 135 | 81 | 40 | 37 | 28 | 70 | 69 | 64 | 33 | 19 | 18 | 33 | 104 | 95 | 66 |
Wind (km/h) | ||||||||||||||||||||||||||||||||||||
| Wind State (?) onshore cross-onshore cross-shore cross-offshore offshore glassy | on | on | cross- on | cross | cross- on | cross- off | cross | on | cross | on | on | on | cross- on | on | cross | on | on | cross- on | cross- off | cross | cross- off | cross- off | cross- off | cross- off | cross- off | cross- off | cross- off | cross- off | cross | cross | cross | cross | cross | cross | cross | cross |
High Tide / height (m) | 4:21PM 8.95 | 4:45AM 9.63 | 5:16PM 9.98 | 5:35AM 10.72 | 6:01PM 11.04 | 6:18AM 11.77 | 6:42PM 11.97 | 6:59AM 12.61 | 7:21PM 12.66 | 7:40AM 13.12 | 8:00PM 13.00 | 8:20AM 13.23 | 8:40PM 12.96 | 9:00AM 12.93 | 9:20PM 12.53 | 9:41AM 12.24 | 10:01PM 11.78 | 10:25AM 11.26 | 10:46PM 10.80 | 11:14AM 10.13 | 11:39PM 9.74 | 12:17PM 9.03 | 12:55AM 8.84 | |||||||||||||
Low Tide / height (m) | 10:19AM 4.40 | 10:54PM 4.25 | 11:29AM 3.41 | 11:53PM 3.20 | 12:20PM 2.34 | 12:41AM 2.16 | 1:05PM 1.40 | 1:24AM 1.29 | 1:47PM 0.73 | 2:05AM 0.72 | 2:28PM 0.42 | 2:46AM 0.52 | 3:09PM 0.50 | 3:27AM 0.70 | 3:49PM 0.96 | 4:10AM 1.23 | 4:31PM 1.73 | 4:54AM 2.04 | 5:16PM 2.69 | 5:43AM 2.99 | 6:08PM 3.69 | 6:43AM 3.90 | 7:15PM 4.54 | |||||||||||||
Tuesday 25 | Wednesday 26 | Thursday 27 | Friday 28 | Saturday 29 | Sunday 30 | Monday 31 | Tuesday 01 | Wednesday 02 | Thursday 03 | Friday 04 | Saturday 05 | |||||||||||||||||||||||||
| Sunrise | 7:01 | - | - | 6:58 | - | - | 6:56 | - | - | 6:54 | - | - | 6:52 | - | - | 6:50 | - | - | 6:48 | - | - | 6:47 | - | - | 6:45 | - | - | 6:41 | - | - | 6:39 | - | - | 6:37 | - | - |
| Sunset | - | 7:27 | - | - | 7:28 | - | - | 7:30 | - | - | 7:30 | - | - | 7:32 | - | - | 7:34 | - | - | 7:36 | - | - | 7:37 | - | - | 7:38 | - | - | 7:39 | - | - | 7:42 | - | - | 7:43 | - |
 | |  | | |  |  | |  |  | | | | | | | | | | | | | | |  | | | | | | | | | | |  | |
Rain (mm) | - | - | - | - | - | - | - | - | 1 | 1 | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - |
| Temp. °C | 9 | 9 | 10 | 12 | 13 | 12 | 11 | 11 | 10 | 10 | 9 | 9 | 9 | 9 | 11 | 11 | 11 | 11 | 12 | 14 | 13 | 14 | 17 | 13 | 13 | 15 | 11 | 10 | 11 | 10 | 14 | 14 | 11 | 14 | 14 | 11 |
| Feels °C (?) | 6 | 6 | 8 | 10 | 10 | 8 | 8 | 8 | 7 | 4 | 0 | 1 | 4 | 6 | 8 | 7 | 7 | 8 | 9 | 11 | 9 | 9 | 13 | 9 | 9 | 10 | 5 | 4 | 5 | 5 | 9 | 8 | 6 | 8 | 8 | 6 |
Short Range Forecast: Some drizzle, heaviest during Thu night. Very mild (max 13°C on Wed afternoon, min 9°C on Tue morning). Wind will be generally light. | Days 3-6 Weather Summary Some drizzle, heaviest during Fri morning. Very mild (max 11°C on Sat night, min 8°C on Fri night). Winds decreasing (fresh winds from the NW on Fri afternoon, calm by Sat afternoon). | Days 6-9 Weather Summary Mostly dry. Very mild (max 17°C on Tue afternoon, min 7°C on Wed night). Wind will be generally light. | Long Range Forecast: Mostly dry. Very mild (max 14°C on Fri morning, min 7°C on Thu morning). Mainly fresh winds. | |||||||||||||||||||||||||||||||||
- Map Icons:
Break
Live Wave Height (m)
Live Wind Speed (km/h)
Surf Rating (10 Max)
Ocean Swells (m)- Wind Speed (km/h)
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