At least in Delhi, the declaration of monsoon onset may not have appeared to square with reality since the rain hardly had any intensity

Delhi-NCR anticipates relief from heat with forecasts of light rain, thunderstorms, and gusty winds as the southwest monsoon advances. Several northern states, including Uttar…

For Delhi, the IMD has forecast a wet spell over the next seven days, with generally cloudy skies, moderate rainfall and thunderstorms expected across the city. | India News

Monsoon set to enter Delhi as IMD confirms low-pressure area, enhancing rainfall across North-West and Central India.