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Drought: Water restrictions extended in Haute-Savoie until October 31

Several river basins in the department remain in a crisis situation, with restriction measures continuing to apply.

Dry riverbed with cracked earth in the French Alps, blurred green mountains in the background.
AI

Dry riverbed with cracked earth in the French Alps, blurred green mountains in the background.

Haute-Savoie is facing a continuous deterioration of its hydrological situation, leading to the extension of water use restriction measures until October 31, 2026.

Since June 22, several basins in Haute-Savoie have been placed on drought alert. Despite some localized storms that brought heavy rainfall for short periods, river levels continue to drop.
An update on September 30, 2026 confirms the extension of these restrictions until October 31, 2026. The situation varies by sector:
The Usses, Dranses, and Chéran sectors remain in a crisis situation (level 4/4).
The basins of the Fier, the south-west Léman, and the middle Arve are at level 3/4.
The basins of the upper Arve and Genevois are at level 2/4.
The prefectural decree detailing these temporary restrictions is available on the website of the prefecture of Haute-Savoie.
Based on information from the official source: Mairie de Neydens (09/10/2026)

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