Chennai

Highest pressure: Marina in the evening and on holidays; principal Mylapore and Triplicane temple approaches during festivals; major Margazhi concerts; Central and Egmore around train peaks; and shopping districts before large holidays.

High but movable: Government Museum after large groups arrive, San Thome at principal service times, Besant Nagar on weekend evenings and popular tiffin restaurants at breakfast. Earlier weekdays usually offer more space.

More breathing room: a single secondary museum, a booked cultural institution, quieter stretches between major waterfront nodes and neighbourhood walks outside worship or commute peaks. Low visitor density does not make a residential lane a photo set.

Weather pressure: May–June heat compresses outdoor activity into morning and evening; October–November rain can close or flood routes; December–January events raise demand even when the weather is easier.

Best tactic: choose one high-pressure anchor per day, reach it before its crowd peak, and pair it with an indoor or locally guided experience in the same district.