9. Medellin, Colombia
Sitting at nearly 5,000 feet above sea level in tropical latitudes, Medellin, Colombia enjoys almost perfect temperatures year-round. The average highs fluctuate only about 4 degrees, hovering around the 80-degree mark throughout the year. No matter when you visit, temperatures will drop to around 60 at night. Because of its location, it rains often and means that umbrellas are a necessary piece of equipment. But your Colombian vacation won't be a total washout either. Medellin was once the most notorious city on Earth because it was controlled by powerful drug cartels and violent street gangs. However, it has accomplished an almost unbelievable turnaround over the past 15 years, and now tourists can safely visit the city and lush mountain landscapes that surround it.