Earth System Models (ESMs) provide critical data to quantify the rate, magnitude and direction of changes in environmental conditions under climate change. Projections of the ESMs are widely applied in ecology and conservation to assess the extent of biodiversity reconfigurations and their ecological and economic implications. Despite their apparent benefits, ESM projections often lack the spatial resolution for local and regional conservation and management applications. In this study, we use statistical downscaling approaches to improve the spatial resolution of ESMs for the equatorial region of Western Indian Ocean across the Lakshadweep-Chagos Ridge and measure the rate, magnitude and direction of environmental changes using climate velocity. In addition, we quantify projected changes in climate variables beyond sea surface temperature and include salinity, pH, carbon chemistry and oxygen to account for realistic climate complexity that marine organisms experience in situ. We seek to understand the climate dynamics at a fine spatial scale, thus providing estimates of climate projections at a scale relevant to regional management and conservation.