France’s national rail operator, SNCF, is suspending regional TER train service across Nouvelle-Aquitaine during the hottest part of the day—10 a.m. to 6 p.m.—through Friday, June 27, 2026, citing extreme heat and safety risks.
The move targets the hours when temperatures are most likely to stress rail infrastructure. SNCF described the decision as preventive, pointing to heat-related hazards such as rails expanding and the risk of track deformation—conditions that can affect passenger safety.
Eight-hour daily shutdown aims to reduce heat-related track incidents
The eight-hour suspension window covers much of the daytime travel period, and riders who rely on TER service in the region are being urged to shift trips outside those hours, either early in the morning or in the evening.
SNCF has not provided, in the information released, any specific details about replacement transportation during the suspended hours.
While broad daytime shutdowns remain uncommon in France, they are not unprecedented. During several recent heat waves, SNCF has previously reduced speeds or temporarily halted service on certain lines, particularly in the country’s Southwest.
Nouvelle-Aquitaine’s rail network is especially vulnerable during extreme heat
Nouvelle-Aquitaine is regularly among the areas hit hardest during summer heat waves. Its rail network—often made up of secondary lines with older infrastructure—can be particularly exposed when temperatures spike.
The planned duration of the measure, running through Friday, suggests forecasts do not anticipate a return to normal conditions before then.
Midweek disruption for everyday commuters, while other train types continue
For tens of thousands of riders who use TER trains to get to work or make medium-distance trips, the 10 a.m. to 6 p.m. cutoff complicates weekday routines. SNCF said the restriction applies specifically to Nouvelle-Aquitaine’s regional TER services; interregional connections operated by other types of trains are not affected.
SNCF also has not communicated, in the available information, whether refunds will be offered or whether special conditions will apply to tickets already purchased for the suspended time slots.
