The vigilance jaune canicule is in effect in Paris, and as we know, public transport can quickly turn into furnaces. When the thermometer climbs toward 33 °C and the perceived heat in some cars of the metro, RER or tramway rises even higher, knowing where to find a free water point can change the day. In this heatwave period in Paris and Île-de-France, Île-de-France Mobilités (IDFM) reminds that a carte des fontaines à eau is available online, listing all water points near the gares et stations of the Île-de-France network.
It's simple, practical and free. The map can be accessed directly from a smartphone, before or during a trip. It lists the drinking-water fountains located right near metro stations, RER, tramway and other lines of the network. Ideal for planning ahead in hot weather, whether you're moving around Paris proper or in the inner and outer suburbs.
Beyond the fountain map, IDFM says they are actively working to steadily improve the thermal conditions aboard trains and subways. Notably, the MF19 rolling stock is arriving on metro lines, the MI20 is expected on the RER B, and the RER NG (New Grand Paris) is planned for lines D and E. These new trains will feature more efficient air conditioning systems, which should significantly boost comfort during heat waves. If you’re wondering which metro and RER lines are already air-conditioned, we’ve got you covered.
Météo-France keeps in place the yellow heatwave vigilance through Thursday for Paris and the Île-de-France region. This alert level calls for caution, especially for vulnerable groups, the elderly, and young children. The National Heatwave Plan recommends limiting heat exposure to the hottest hours, staying regularly hydrated, and prioritising cool spaces.
As we await the new air‑conditioned train sets, the Île-de-France Mobilités card remains a smart habit to adopt now. Add it to your bookmarks before you board the train.
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