There's no single best month for India — it's always the right season somewhere. Winter suits most of the country; when the plains get too hot, go to the mountains; when the monsoon arrives, go to Ladakh.
Oct – Mar
Winter
The best time for most of India: Rajasthan, Delhi and Agra, the south, the beaches and the islands.
Apr – Jun
Summer
Too hot for the plains. Go up: Himachal, Kashmir, Sikkim, and Ladakh once its roads open.
Jun – Sep
Monsoon
Ladakh and Spiti stay dry in the rain shadow. The Western Ghats are lush but wet; many parks close.
Month by month
January
Cold and often foggy across the northern plains (Delhi roughly 7–20°C). Snow in the Himalaya. Dry and warm in the south and west.
Hornbill Festival in Nagaland, 1–10 December. Christmas and New Year in Goa.
Fog in the north from late December. Goa and Rajasthan prices peak over Christmas and New Year — book early.
Weather notes describe typical years. Festivals set by the lunar calendar — Holi, Diwali, Durga Puja, Onam, the Pushkar fair — move by several weeks from year to year, so check the date for your year before booking.