Weather can make or break a roadtrip, so we've gathered some data about year-round temperatures in Codajás to help you plan yours. The hottest months are usually September and August with an average temp of 82°F, while the coldest months are June and July with an average of 79°F. The rainiest months in Codajás are March, April, January, and February, with each month seeing an average of 15 inches of rainfall.