Climate change has emerged as one of the most critical global challenges of the twenty-first century, with developing countries like India experiencing its impacts in a highly uneven and region-specific manner. Owing to its vast geographical diversity, dependence on the monsoon system, agrarian economy, long coastline, and Himalayan ecosystems, India is particularly vulnerable to climate-induced disruptions. This paper examines the impact of climate change on regional climatic patterns in India, focusing on variations in temperature, rainfall, frequency of extreme weather events, and their socio-economic consequences. Using secondary data from authoritative sources such as the India Meteorological Department (IMD), IPCC reports, and government publications, the study analyses region-wise changes across the Himalayan region, coastal belts, central and north-western India, and the eastern and north-eastern states. The findings indicate a consistent rise in average temperatures, increasing incidence of heat waves, erratic monsoon behaviour, accelerated glacial retreat, rising sea levels, and intensified cyclonic activity. These changes have significantly affected agriculture, water availability, human health, livelihoods, and regional development patterns. The paper highlights that climate change impacts are not uniform but deeply intertwined with regional geography, socio-economic structures, and adaptive capacity. It concludes by emphasising the need for region-specific climate adaptation strategies, strengthened policy frameworks, and sustainable development planning to enhance resilience and mitigate long-term risks.