India is experiencing more heatwave days this summer, with Delhi ordering the closure of all schools as temperatures surge as high as 47 degrees Celsius. The India Meteorological Department predicts 7-10 heatwave days in northwestern regions this month, compared to the usual 2-3 days. This is largely due to fewer non-monsoon thundershowers and an active but weakening El Nino. Warm, westerly winds from Pakistan also contribute to the heat.