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Le Sillon Surf Forecast
/ Brittany – Ile et Vilaine (5 surf breaks) /
Surf Forecasts:
Le Sillon surfForecast / Brittany – Ile et Vilaine / France
48hr Weather and Surf, issued 7 am Monday 01 Sep 2025 CEST
How big are the waves at Le Sillon today?
The current surf forecast for Le Sillon at 8AM is: 1.3m 13s primary swell from a West-northwest direction (forecast issued at 07:00am September 01). An open ocean swell of 0.5m 3s is not directed at the surf break. The wind direction is predicted to be cross-offshore.
| Time (CEST) & Date | Wave Height | Wave Period |
|---|---|---|
| Morning (01 Sep) | 4ft (1.2m) | 13s |
| Afternoon (01 Sep) | 4.5ft (1.4m) | 12s |
| Evening (01 Sep) | 5ft (1.5m) | 12s |
Table - waves today at Le Sillon. (Swell directed towards the surf break)
Monday 01 | Tuesday 02 | Wednesday 03 | Thu 04 | |||||||||||||||||||||
| 5 AM | 8 AM | 11 AM | 2 PM | 5 PM | 8 PM | 11 PM | 2 AM | 5 AM | 8 AM | 11 AM | 2 PM | 5 PM | 8 PM | 11 PM | 2 AM | 5 AM | 8 AM | 11 AM | 2 PM | 5 PM | 8 PM | 11 PM | 2 AM | |
Rating (10 max) | ||||||||||||||||||||||||
Swell Height Map |    |    |    |    | ||||||||||||||||||||
| Wave Height (m) & direction (?) | ||||||||||||||||||||||||
| Period(s) (?) | 13 | 13 | 12 | 12 | 12 | 12 | 12 | 12 | 12 | 12 | 11 | 11 | 11 | 10 | 10 | 10 | 10 | 10 | 9 | 5 | 11 | 12 | 12 | 12 |
Wave (?)Graph  | ||||||||||||||||||||||||
| Energy (?) | 514 | 506 | 413 | 528 | 650 | 766 | 645 | 545 | 374 | 294 | 173 | 277 | 275 | 137 | 288 | 128 | 100 | 84 | 53 | 86 | 233 | 486 | 672 | 692 |
Wind (km/h) | ||||||||||||||||||||||||
| Wind State (?) onshore cross-onshore cross-shore cross-offshore offshore glassy | cross- off | cross- off | cross | cross- on | cross- on | cross- on | cross | cross | cross- off | cross- off | cross- off | cross | cross- on | cross- on | cross | cross- off | cross- off | cross- off | cross | cross | cross | cross | cross | cross- off |
High Tide / height (m) | 1:22PM 8.48 | 2:05AM 8.07 | 3:08PM 8.00 | 4:24AM 7.97 | 5:07PM 8.36 | |||||||||||||||||||
Low Tide / height (m) | 7:38AM 4.86 | 8:13PM 5.13 | 8:50AM 5.40 | 9:49PM 5.40 | 10:44AM 5.41 | 11:42PM 4.94 | ||||||||||||||||||
Monday 01 | Tuesday 02 | Wednesday 03 | Thu 04 | |||||||||||||||||||||
| Sunrise | - | 7:24 | - | - | - | - | - | - | - | 7:24 | - | - | - | - | - | - | - | 7:26 | - | - | - | - | - | - |
| Sunset | - | - | - | - | - | 8:51 | - | - | - | - | - | - | - | 8:49 | - | - | - | - | - | - | - | 8:46 | - | - |
 |  |  |  | |  | |  | | | | | | |  | | | |  | | | | | | |
Rain (mm) | - | - | - | 1 | 2 | 1 | - | - | - | - | 7 | 1 | 1 | - | - | - | - | - | 1 | 1 | 1 | - | - | - |
| Temp. °C | 14 | 14 | 18 | 19 | 18 | 18 | 16 | 14 | 14 | 15 | 16 | 21 | 21 | 20 | 17 | 17 | 19 | 20 | 20 | 20 | 20 | 20 | 17 | 16 |
| Feels °C (?) | 10 | 10 | 14 | 15 | 13 | 14 | 12 | 10 | 10 | 11 | 10 | 16 | 17 | 15 | 12 | 12 | 14 | 15 | 13 | 14 | 14 | 15 | 13 | 11 |
- Map Icons:
Break
Live Wave Height (m)
Live Wind Speed (km/h)
Surf Rating (10 Max)
Ocean Swells (m)- Wind Speed (km/h)
Recent Eyeball Surf Reports for Brittany - Ile et Vilaine
The wind is still cross-off at Le Sillon (light winds from the S at St Lunaire 9 km from Le Sillon). 0.9m 4s local chop from the SW with a 0.6m 12s groundswell from the WNW. 2 swells combining to make bigger set waves.
1 h 9 min ago
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