Due to its highlands, most tourist destinations in Karnataka don’t experience hot and humid summer i.e. from April to June. The coastal, north central, and south central are the main three climatic zones of Karnataka. Bangalore experiences moderate summer, with day temperatures hovering around 35 to 40 degrees. Cities in northern Karnataka witness scorching summers with temperatures reaching 45 degrees in April and May.
The hill stations of Karnataka provide respite to the tourists from plains of Karnataka as well as the other parts of India. If you’re planning to visit hill stations like Coorg then summer is the best time to visit Karnataka. Avoid visiting the beaches or coastal regions, which should be visited between November and March.