A southerly, strong and mostly variable flow prevails over the whole area. For Plan d"Eau de la Haute-Vilaine : No gale warning.
The reliability of the situation is assessed at 90%.
Mist and fog in the morning, cloud largely disappearing in the afternoon. No precipitation.
In the evening, clear skies. SSE force 2 in the morning turning ESE in the evening. Gusts reaching 11 knots in the middle of the day. Visibility reduced by mist becoming excellent in the middle of the day then excellent.