The Portland Farmers Market is a farmers market in Portland, Maine, U.S., which has been in continuous operation since 1768.[1] Since 1990, the market has been held place year-round. From May to November, it is held on Wednesdays in Monument Square and on Saturdays in Deering Oaks Park. From December to April, the winter market is held on Saturdays in the former Catherine McAuley High School building.