Large sections of Western Australia are facing a day of serious fire danger on Sunday.

The Department of Fire and Emergency Services (DFES) has declared a severe fire danger rating for the Gascoyne, Goldfields, Great Southern, Central West, Central Wheatbelt and the Goldfields Midlands regions.

The DFES expects hot, dry and windy conditions which could lead to a bush or grass fire taking hold and spreading quickly.

A catastrophic fire rating is in place for the Eucla.

A total fire ban is in place for the Goldfields Midlands, with offenders facing a fine of up to $25,000 or a 12-month jail term.