Heatwave: more comfort for your journeys every summer
What transport is air-conditioned in Île-de-France during the heatwave?
New or renovated trains, buses, trams and metros, designed to better respect the environment and increase the comfort of passengers? This is the ambition of Île-de-France Mobilités.
Comfort, also climatic, which requires the generalization of air conditioning and refrigerated ventilation systems throughout the Ile-de-France network.
Air conditioning in your trains and RER, where do we stand?
In June 2025: 2/3 of trains and RER trains are already equipped with air conditioning or ventilation.
Metros: they will all be equipped with refrigerated ventilation in 2035
By 2035, all metro trains will have been replaced by Île-de-France Mobilités and will be equipped with refrigerated ventilation systems.
In the meantime, the renewal of the equipment continues, today: 50% of the metros in circulation are equipped with refrigerated ventilation.
Between 2025 and 2033: 8 lines will be equipped with a modern and air-conditioned metro
From 2025, the first trains of the brand new "rail" metro, the MF19, will gradually arrive on lines 3, 3 bis, 7, 7 bis, 8, 10, 12 and 13, starting with line 10.
Why did you choose refrigerated ventilation for all metros in Île-de-France?
On some lines, installing real air conditioning is not possible: the tunnels are too narrow, which could overheat the air and block traffic.
Faced with these constraints, Île-de-France Mobilités has chosen a more suitable solution: refrigerated ventilation. Less powerful than a conventional air conditioner, but more compatible with the infrastructure, it still cools the atmosphere on board.
100% air-conditioned trams in Île-de-France
All tram lines and tram-trains (these famous trams that can run both in the city and on railway lines) are air-conditioned in Île-de-France.
Ever fresher buses and coaches
Today, 60% of the Ile-de-France bus and coach fleet has air conditioning.
This percentage is set to change with the massive renewal of equipment undertaken by Île-de-France Mobilités.
High temperatures: the right reflexes to adopt in transport
1. Water! Carry a bottle or flask filled with water. And drink regularly.
- On the Île-de-France Mobilités app, find all the water fountains in Paris on the interactive map.
- Here, locate all the nearby drinking water points around you.
- Did you know? 140 water fountains are deployed in all Île-de-France Mobilités stations and stations.
2. Shade. Are you waiting for the bus, the tram?
Stay in the shade (or bring a hat, a parasol).
On the Île-de-France de demain website, you will find a list of places to stay cool in Paris and its Region and access climate shelters near you.
3. Air-conditioned vehicle? Keep the freshness inside.
Don't open windows, keep cool inside