Delhi's only comfortable between October-March when temps hang around 15-28°C and you can actually walk outside without melting. This is peak season so accommodation prices absolutely explode.

Popular budget spots like Zostel and Madpackers in Paharganj fill completely by November. Watched basic rooms at Hotel Namaskar (Main Bazaar Road) go from ₹800 in September to ₹2000 in December for the same 8x10 space with shared bathroom. Book minimum 6 weeks ahead for Republic Day season in January when Delhi goes completely mental with crowds.

April-June is brutal 40°C+ furnace heat but every guesthouse sits empty and desperate. July-September monsoon means humidity from hell but way fewer people fighting for auto-rickshaws at Chandni Chowk. Visiting off-season saves serious cash and you experience real Delhi without battling tourist masses at Red Fort or India Gate. Weather apps become your religion though — Check hourly temps before leaving air conditioning!