Several rainy episodes in October have led to an improvement in the hydrological situation and water resources in the Arly watershed. However, dry weather conditions observed in recent days do not yet allow for the lifting of all current restrictions. The easing of measures is conditional on the sustained crossing of monitoring thresholds for ten consecutive days.
According to Météo-France's climate report, September 2026 ranks as the second warmest and among the driest September months since measurements began in 1900, with a national rainfall deficit close to 70%.
In Savoie, the effects of this prolonged drought remain particularly marked on groundwater resources, which have accumulated significant deficits in recent months. The situation remains degraded, with measured levels well below seasonal averages.
Consequently, all sub-watersheds represented by the SMBVA remain on alert until November 20, 2026, unless the situation improves durably before then.
Citizens and users are encouraged to adopt eco-responsible practices to conserve water resources. The website vigieau.gouv.fr provides information on current measures.
