Snow in Île-de-France: Traffic disruptions on RER C, lines N, U, and V of Transilien — here's the latest update

Due to severe weather conditions and heavy snowfall on Wednesday, January 7, 2026, service on the RER C has been temporarily halted, along with disruptions on lines N, U, and V of the Transilien network. Here's the latest update on the situation.

Similar disruption on the U line, with completely halted traffic until 2 p.m. On Transilien's V line, conditions are also challenging, with trains stopped between Versailles Chantiers and Massy-Palaiseau in both directions, until around noon.

Disruptions are also reported on other parts of the Transilien network, including lines J, P and R.

On the RER network, trains are running at a snail's pace across the board. The RER C line is the most affected, with service disrupted between St-Quentin en Yvelines and Viroflay Rive Gauche in both directions until 2 p.m. Elsewhere on the line, service remains "perturbed".

Additionally, tram service on the entire T4 line is suspended until 1 p.m.

Snowfall in Île-de-France: Disruptions Expected on RER and Transilien Lines This Wednesday

RER A: Services heavily disrupted between Cergy le Haut and Nanterre Préfecture in both directions.
RER B: Line-wide service disruptions.

RER C: Service interrupted between St-Quentin en Yvelines and Viroflay Rive Gauche until 2 p.m., with disruptions on the rest of the line.
RER D: Major delays between Juvisy and Malesherbes in both directions. Expect journey times to increase by around 30 minutes, along with service alterations and cancellations.
RER E: Line-wide disruptions expected. Travelers should anticipate delays, cancellations, and route changes.
Ligne J: Disruptions between Paris Saint-Lazare and Mantes-la-Jolie via Poissy, and between Paris Saint-Lazare and Mantes-la-Jolie via Conflans Ste-H. in both directions.
Ligne N: Line-wide service halted until 2 p.m.
Ligne P: Slowdowns between Paris Est and Meaux, as well as between Paris Est and Château-Thierry, in both directions.
Ligne R: Disruptions between Paris Gare de Lyon and Melun in both directions. Journey times could be lengthened by roughly 30 minutes, with route modifications and cancellations to be expected.
Ligne U: Complete service suspension until 2 p.m.
Ligne V: Service disrupted between Versailles Chantiers and Massy-Palaiseau in both directions until noon.