Fort Lauderdale's winter temperatures, averaging 60-76 F/16-24 C, attract visitors from northern reaches (known locally as snowbirds) November-April. In winter, cold fronts do occasionally sweep down from chillier climes, which can cause temperatures to drop abruptly.
Summers are hot and humid (average temperatures are in the low 90s F/32-37 C, and humidity is often 98%), with frequent, brief afternoon thundershowers. A high-SPF sunscreen is a must. A hat will help, and an umbrella comes in handy to protect against rain and sun. Hurricane season is June-November.