Costa Rica has two coasts and with that, two main cultures. On the Pacific Ocean, typically are the Ticos (Costa Ricans) and on the Atlantic Ocean, especially in and around Limon, is an English-speaking, Jamaican influenced African-Caribbeanculture.
A high altitude change throughout the central part of the country offers all ranges of precipation levels creating hundred of mico climate zones. If the desire is to experience a warm and dry climate with seasonal changes, or a jungle to still see the autumn colors in a variety of trees, then the dry forests of the northwest Pacific Coast of Costa Rica in the Guancaste province could be your choice. Tropical climates along the coasts to highland climates occur in all altitudes throughout the mountainous country offering the greatest variety of temperature zones; one of them surely will fit your definition of "perfect climate".
Costa Ricans take great pride in their country and are very honest people. The relatively low crime rate and multitude of natural diversity within such a small space makes living there an experience filled with beauty and excitement. The country offers four types of rain forests and over 60 clearly recognizable volcanoes.
