The updated world map of the Köppen-Geiger climate classification, developed by Peel, Finlayson, and McMahon, provides a global climate map based on long-term monthly precipitation and temperature data. The map uses a two-dimensional thin-plate spline interpolation to create a 0.1° × 0.1° grid for each continent. The most common climate types by land area are BWh (14.2%, Hot desert) and Aw (11.5%, Tropical savannah). The map is freely available online. The study discusses challenges in classifying sites that do not fit neatly into one climate type and assesses the outcomes continent by continent. The Köppen-Geiger classification remains widely used in education and research for climatic regionalization and assessing global climate models. Despite its age, the classification is still relevant due to its simplicity and historical use. The study highlights the importance of the Köppen-Geiger system in understanding climate patterns and its continued use in various scientific fields. The updated map provides a more accurate representation of climate zones based on modern data, improving the understanding of climate variability and its impact on ecosystems. The study also addresses limitations in the classification system, such as the need for more precise criteria and the influence of elevation on climate patterns. The updated map is a valuable resource for climate research and education.The updated world map of the Köppen-Geiger climate classification, developed by Peel, Finlayson, and McMahon, provides a global climate map based on long-term monthly precipitation and temperature data. The map uses a two-dimensional thin-plate spline interpolation to create a 0.1° × 0.1° grid for each continent. The most common climate types by land area are BWh (14.2%, Hot desert) and Aw (11.5%, Tropical savannah). The map is freely available online. The study discusses challenges in classifying sites that do not fit neatly into one climate type and assesses the outcomes continent by continent. The Köppen-Geiger classification remains widely used in education and research for climatic regionalization and assessing global climate models. Despite its age, the classification is still relevant due to its simplicity and historical use. The study highlights the importance of the Köppen-Geiger system in understanding climate patterns and its continued use in various scientific fields. The updated map provides a more accurate representation of climate zones based on modern data, improving the understanding of climate variability and its impact on ecosystems. The study also addresses limitations in the classification system, such as the need for more precise criteria and the influence of elevation on climate patterns. The updated map is a valuable resource for climate research and education.