However, rain and daytime temperatures of around four degrees Celsius in the region around Hagfors had triggered fears that the studded tyres would damage the soft surface and make conditions too dangerous.
The official wrc.com website said organisers submitted a revised route on Monday, cancelling Thursday's opening super-special stage among others. Colder weather is forecast for later in the week.
(Reporting by Alan Baldwin in London, editing by Ed Osmond)
