The global consequences of climate change cannot be ignored. The agriculture industry, in particular, has been harmed, resulting in poor production as a result of floods and droughts. One in every three people in the world’s arid and semi-arid regions lacks access to healthy food and safe drinking water. Despite the fact that irrigation development is increasing in most developing nations, it still falls short of meeting current food demand, much alone predicted need by 2050. To feed the future population while combating climate change, agricultural practices must be precise. Scarce resources such as water, land, and energy will need to be exploited more efficiently in order to produce more with less. Smart irrigation is shaping up to bring answers to these twenty-first-century concerns. This chapter discusses improvements in smart irrigation monitoring and management systems that may be used to address climate, food, and population issues. It includes an overview of smart irrigation, smart irrigation monitoring, and smart irrigation management, as well as challenges and prospects related to climate change and food security. Smart irrigation may boost water savings and agricultural production, thereby improving food security.