on this link by the secretaria da cultura de rio de janeiro it is possible to see all the cultural events of all types by month that take place in maricá, by selecting a date range and scrolling the menu of cities on the left.  

part of the rio de janeiro state department of tourism (Secretaria de Estado de Turismo - SETUR), useful and important is the information provided by Turisrio - Companhia de Turismo do Estado do Rio de Janeiro, that via this link offers information on many important cities in the state including maricá, with special attention to areas of high cultural and touristic value reachable in 3 hours or less from rio de janeiro, so classified in the program 'rio +3,' available in pdf format via this link, and downloadable for free here.