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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 7 am Tuesday 15 Apr 2025 CEST
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 Tuesday (Apr 15) at 11AM. The primary swell is predicted to be 0.6m and 11s period. The wind is predicted to be offshore as the swell arrives.
The most powerful waves expected at Le Sillon in the next 12 days are 1.9m 10s and forecast to arrive on Saturday (Apr 19) at 5PM. Winds are predicted to be cross-onshore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 0.8m 4s period and expected on Friday (Apr 18) at 2PM.
| Wave Type | Time (CEST) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | 11AM (Tue 15th Apr) | 2ft (0.6m) 11s |
| Best Surf | 2PM (Wed 16th Apr) | 3.5ft (1.1m) 11s |
| Most Powerful | 5PM (Sat 19th Apr) | 6ft (1.9m) 10s |
Table - best surf conditions forecast for Le Sillon over the next 12 days.
Tuesday 15 | Wednesday 16 | Thursday 17 | Friday 18 | Saturday 19 | Sunday 20 | Monday 21 | Tuesday 22 | Wednesday 23 | Thursday 24 | Friday 25 | Saturday 26 | |||||||||||||||||||||||||
| 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) (?) | 11 | 11 | 8 | 11 | 10 | 10 | 9 | 9 | 9 | 8 | 9 | 5 | 8 | 10 | 10 | 9 | 8 | 11 | 4 | 10 | 11 | 11 | 11 | 12 | 11 | 10 | 10 | 9 | 9 | 8 | 7 | 7 | 6 | 7 | 9 | 13 |
Wave (?)Graph  | ||||||||||||||||||||||||||||||||||||
| Energy (?) | 95 | 295 | 338 | 334 | 173 | 56 | 34 | 42 | 27 | 14 | 8 | 49 | 171 | 776 | 373 | 90 | 37 | 24 | 28 | 131 | 292 | 259 | 205 | 189 | 657 | 858 | 788 | 697 | 541 | 183 | 47 | 28 | 8 | 24 | 42 | 225 |
Wind (km/h) | ||||||||||||||||||||||||||||||||||||
| Wind State (?) onshore cross-onshore cross-shore cross-offshore offshore glassy | off | cross- on | cross | cross- off | cross- off | off | cross | off | cross- off | cross- off | cross- off | cross- on | cross- on | cross- on | off | on | cross- on | cross | on | cross- on | glass | cross- off | cross- off | cross- off | cross | cross- on | cross | cross | cross- on | cross | cross- on | on | on | cross | cross- on | cross |
High Tide / height (m) | 9:25AM 11.49 | 9:39PM 11.39 | 9:53AM 11.20 | 10:07PM 11.08 | 10:22AM 10.80 | 10:36PM 10.68 | 10:53AM 10.29 | 11:10PM 10.19 | 11:30AM 9.71 | 11:50PM 9.63 | 12:18PM 9.08 | 12:45AM 9.05 | 1:29PM 8.55 | 2:12AM 8.71 | 3:18PM 8.53 | 3:57AM 9.04 | 4:45PM 9.22 | 5:10AM 9.91 | 5:43PM 10.20 | 6:03AM 10.92 | 6:30PM 11.19 | 6:50AM 11.85 | 7:13PM 12.04 | |||||||||||||
Low Tide / height (m) | 4:04PM 2.20 | 4:18AM 2.35 | 4:32PM 2.56 | 4:48AM 2.73 | 5:02PM 3.04 | 5:21AM 3.19 | 5:36PM 3.57 | 5:59AM 3.69 | 6:17PM 4.12 | 6:49AM 4.17 | 7:14PM 4.60 | 7:56AM 4.50 | 8:30PM 4.84 | 9:19AM 4.48 | 9:56PM 4.63 | 10:42AM 3.98 | 11:15PM 3.95 | 11:51AM 3.14 | 12:17AM 3.02 | 12:46PM 2.23 | 1:09AM 2.09 | 1:34PM 1.44 | 1:56AM 1.33 | |||||||||||||
Tuesday 15 | Wednesday 16 | Thursday 17 | Friday 18 | Saturday 19 | Sunday 20 | Monday 21 | Tuesday 22 | Wednesday 23 | Thursday 24 | Friday 25 | Saturday 26 | |||||||||||||||||||||||||
| Sunrise | 7:18 | - | - | 7:16 | - | - | 7:13 | - | - | 7:11 | - | - | 7:09 | - | - | 7:07 | - | - | 7:07 | - | - | 7:05 | - | - | 7:03 | - | - | 7:01 | - | - | 6:58 | - | - | 6:56 | - | - |
| Sunset | - | 8:58 | - | - | 9:00 | - | - | 9:00 | - | - | 9:01 | - | - | 9:04 | - | - | 9:05 | - | - | 9:07 | - | - | 9:07 | - | - | 9:09 | - | - | 9:10 | - | - | 9:13 | - | - | 9:14 | - |
 |  |  |  | |  | | |  |  | |  | |  |  |  | |  | | | | | | | | | | | |  | | | | | | | |
Rain (mm) | - | - | - | - | - | - | - | - | - | 3 | 1 | 17 | - | 3 | 9 | 5 | 3 | 3 | 1 | - | - | 1 | 1 | - | - | - | 1 | 2 | 1 | 3 | 2 | 1 | - | 2 | 1 | 2 |
| Temp. °C | 11 | 13 | 9 | 10 | 14 | 12 | 10 | 14 | 13 | 9 | 11 | 11 | 10 | 11 | 11 | 7 | 10 | 9 | 9 | 12 | 11 | 9 | 12 | 12 | 9 | 9 | 9 | 7 | 7 | 8 | 7 | 8 | 8 | 8 | 9 | 9 |
| Feels °C (?) | 5 | 10 | 0 | 4 | 8 | 7 | 6 | 11 | 7 | 2 | 3 | 7 | 3 | 5 | 6 | -4 | 1 | 2 | 2 | 7 | 7 | 7 | 9 | 7 | 1 | 3 | 5 | 0 | 0 | 3 | 2 | 3 | 3 | 4 | 3 | 3 |
Short Range Forecast: Mostly dry. Very mild (max 14°C on Wed afternoon, min 6°C on Tue night). Winds decreasing (strong winds from the WSW on Tue afternoon, calm by Thu afternoon). | Days 3-6 Weather Summary Heavy rain (total 44mm), heaviest during Fri night. Very mild (max 11°C on Fri afternoon, min 6°C on Sun morning). Winds decreasing (near gales from the WNW on Sun morning, light winds from the WSW by Sun night). | Days 6-9 Weather Summary Light rain (total 4mm), mostly falling on Mon morning. Very mild (max 12°C on Mon afternoon, min 8°C on Mon morning). Winds increasing (calm on Mon night, fresh winds from the NNE by Wed morning). | Long Range Forecast: Moderate rain (total 15mm), heaviest on Thu morning. Mild temperatures (max 9°C on Sat afternoon, min 6°C on Fri morning). Winds decreasing (fresh winds from the NNE on Thu morning, calm by Fri night). | |||||||||||||||||||||||||||||||||
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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.
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