Tests on dozens of real-world questions show that adding local climate numbers and specialised data-retrieval “agents” helps the system give more complete and accurate answers than a generic chatbot. Because ClimSight can run on cost-efficient AI models, it offers a practical way for farmers, city planners, insurers and emergency managers to access the climate insights they need - without having to decode technical reports. This work demonstrates how pairing transparent AI with high-quality climate data can widen public access to climate services and support better decisions in a warming world.