Costa Rican Independence Day Posted on June 14, 2012 by admin Hello there! If you are new here, you might want to subscribe to the RSS feed for updates on this topic.Powered by WP Greet Box WordPress Plugin Little kids and lanterns flood the streets during Costa Rican Independence Day (or Central American Independence Day) on September 16. It is eerily beautiful to see lights bobbing up and down dimly lit streets in Coco, Costa Rica.