The significance of the ocean's temperature lies in its influence on global climate, marine ecosystems, and ocean circulation. Temperature variations lead to changes in currents, affect nutrient distribution, and determine species survival. Warming oceans can disrupt habitats and trigger phenomena like coral bleaching. Additionally, ocean temperature plays a crucial role in weather patterns, influencing climate systems worldwide. Monitoring and understanding these temperature changes are vital for predicting climate change impacts and managing marine resources sustainably.