A Mayor is always a member of the council, usually with long service, who is invited to stand by colleagues from their political party, and has usually been Deputy Mayor the previous year.
The vote for a new Mayor is taken at the Annual General Meeting of Council, which is traditionally held in May.
When there is a clear majority in the Council the candidate can expect to be elected unopposed. However, if there is a hung Council there can be more than one candidate for the posts of Mayor and Deputy Mayor and the election result can be very close.