You can register to vote at anytime. To participate in an upcoming election you must be registered to vote 29 days before election day. To be eligible to vote in Florida you must meet the following requirements:
You are a citizen of the United States of America
You are a Florida resident
You are at least 18 years old (you may pre-register to vote at the age of 16, but you cannot vote until you are 18 years old)
You have not been adjudicated mentally incapacitated with respect to voting in Florida or any other state
Voter Registration Application forms are available at any Supervisor of Elections office, local library, or any entity authorized by the Florida Fish and Wildlife Conservation Commission to issue fishing, hunting, or trapping permits.