Here is a list of calendars telling you what's on in Cobourg.  Some have a limited number of events and many include locations outside Cobourg but between them, they list most of what's available for entertainment in Cobourg.

For a short list of recommended events, see the Featured events page.

See also this Calendar's main page for most of the listed events.

Venue Calendars

Entertainment Organization Web sites

Northumberland County Arts Organization

A number of groups in Northumberland have got together to list their events. So far it's somewhat limited but it is a "Calendar" and it is available.
Go to the Google Docs page here.

Other Venues

General Calendars

Concert Hall It is actually their booking calendar but they manage bookings for many of Cobourg’s events
Town of Cobourg Only Town managed events. Not very useful.  Dominated by Library events and includes many educational events.
Northumberland County As you'd expect, covers whole county
Northumberland News Newspaper site - Covers Northumberland County - one of the better calendars
My FM Radio Station One of the better calendars

Lists of Key Events