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Este artigo discute as vantagens e limitações de quatro técnicas para a análise do clima urbano e da ilha de calor urbana, considerando a região metropolitana do Rio de Janeiro (RMRJ) como área de estudo. As técnicas apresentadas e discutidas são: a análise de série temporal de estação meteorológica padrão, os transectos fixos e móveis, o sensoriamento remoto (Landsat) e a modelagem numérica (Mesoscale Model Version 5 – MM-5). A primeira técnica é a mais clássica nos estudos do clima urbano, mas se limita a apenas um ponto da superfície, enquanto os transectos fixos e móveis abrangem mais pontos para o mapeamento espacial. O sensoriamento remoto e a modelagem numérica ampliam a abrangência espacial e acessam toda a área de estudo, oferecendo maior detalhamento e conhecimento do clima urbano. Conclui-se que um estudo do clima urbano mais abrangente e completo é dado com o uso combinado dessas técnicas. This paper discusses the advantages and limitations of four techniques for urban climate and the urban heat island analysis considering the Metropolitan Area of Rio de Janeiro (MARJ) as the study area. The techniques presented and discussed are the time series analysis of the standard meteorological station, fixed and mobile transects, remote sensing (Landsat) and numerical modeling (Mesoscale Model Version 5 – MM-5). The first technique is most classical in urban climate studies, but it is limited to only one point on the surface, while fixed and mobile transects cover more points for spatial mapping. Remote sensing and numerical modeling extend spatial coverage and access the entire study area, providing detail and knowledge of the urban climate. We conclude that a more comprehensive and complete urban climate study is given with the combined use of these techniques.This paper discusses the advantages and limitations of four techniques for urban climate and the urban heat island analysis considering the Metropolitan Area of Rio de Janeiro (MARJ) as the study area. The techniques presented and discussed are the time series analysis of the standard meteorological station, fixed and mobile transects, remote sensing (Landsat) and numerical modeling (Mesoscale Model Version 5 – MM-5). The first technique is most classical in urban climate studies, but it is limited to only one point on the surface, while fixed and mobile transects cover more points for spatial mapping. Remote sensing and numerical modeling extend spatial coverage and access the entire study area, providing detail and knowledge of the urban climate. We conclude that a more comprehensive and complete urban climate study is given with the combined use of these techniques.