Commuters are getting free bottles of water as the heatwave continue.
Irish Rail say 50,000 bottles will be distributed to customers at major stations over the coming days.
— CorkCityCentre (@corkcitycentre) June 27, 2018
The company says hot weather protocols are also in place for its fleet and infrastructure maintenance.
This will focus on cooling systems on board, and on ensuring air-conditioning is operating well on equipped fleets.
— Anthony Lawless (@ALGALWAY) June 27, 2018
It's advised customers to stay hydrated when travelling during the hot weather spell.
The company is sharing a video with customers on tips for travel during hot weather - including advice to always carry water.