How do mold and damp affect homes in India in 2026?

In Mumbai, southwest-monsoon weeks leave walls sweating, laundry slow to dry, and ground-floor stock worse after street floods: Flood risk. In Chennai and Kochi, warm sticky nights and sealed AC flats can still grow bathroom and closet mould if air never dries.

Bangalore feels milder outdoors yet still spots north-facing walls in wet months: Rain in India. Hill rentals are the classic trap. Cool Shimla or Ooty air feels pleasant while monsoon indoor humidity stays high enough for leather, mattresses, and cameras to suffer without a dehumidifier: Highland climate. EPA home-care guidance treats sustained relative humidity above roughly 60% as a mould-friendly zone; Indian wet months routinely push indoor readings higher without active drying.

Inspect ceilings, wardrobe backs, and bathroom grout on a second visit. Photograph existing spots so deposit deductions cannot invent new damage: Rental contracts and deposits and How to rent a home. Budget AC dry mode or a compressor dehumidifier into Utilities, internet and transport. Prefer cross-ventilation and avoid stuffing wet clothes into closed cupboards on furnished rentals.