The weather will begin to change on Tuesday with the arrival of more unstable conditions across much of the country. Clouds will increase, and a few showers are possible throughout the day. Despite this change, temperatures will remain unseasonably mild.
The morning begins under mostly cloudy skies across many regions, although some sunny spells manage to break through locally. Temperatures remain high for early March, generally between 10 and 13°C, without any real feeling of coolness.
In the afternoon, instability will increase with the development of larger clouds that could bring localized showers, sometimes accompanied by thunder. Temperatures will remain very mild, however, generally between 16 and 19°C, and sometimes higher in the south.
In the evening, an Atlantic weather system will move into Brittany, bringing cloudier skies and the first rain. Elsewhere, the weather will remain relatively calm, but clouds will gradually spread across the west and northwest of the country.
