Metz sits in eastern France under a semi-continental climate, with colder winters than the rest of the country and a summer rainy season shaped by convective thunderstorms rather than a single wet period.
Where the Moselle and Seille rivers meet, the city closely tracks combined river levels during wet periods. Because summer storms here can be locally intense even when the season’s overall rainfall is unremarkable, radar is a useful way to spot a fast-developing storm cell before it arrives. Meteo-France operates the national radar network. Learn more: Flash Flood Warning Signs on Radar · Open the full Rain Map