Best time to visit Delhi: weather, crowds and events by month

Delhi sits on the northern plains, so its year splits into a short pleasant window, a long hot stretch, a wet season and a hazy winter. The table below is the fast read; the notes after it explain what each verdict means for a trip.

February is the month most travellers should aim for: mild days, cool evenings and dry weather across the north. October is the other strong pick, with post-monsoon clarity and comfortable temperatures, though the south-east coast of India turns wet at the same time. March is still workable but warming fast, and Holi falls in the north this month.

April to June is the heat. April reaches about 40 °C on the plains and May and June push towards 45 °C, which is why the parent India guide marks May as avoid. If your dates are fixed, plan indoor and early-morning sightseeing and keep hydration and shade in the plan. July to September is the monsoon: hot, humid and wet, with low prices and thin crowds.

November to January is the trade-off. Temperatures are good and this is peak season for Rajasthan, Kerala and Goa, but November brings Delhi's worst smog and December–January mornings bring dense fog that delays trains and flights. Late February and October avoid both problems.

Delhi's problem months are about extremes rather than averages. In May and June, daytime heat on the plains can reach about 45 °C, so a trip then needs early starts, a midday break indoors and more water than you think. In July to September the monsoon brings heavy rain and humidity; streets flood quickly and outdoor plans need a backup.

Winter is the opposite surprise. December and January mornings can be cold enough for a jacket, and dense fog is common enough that the India guide warns of delays to trains and flights. November is mild but hazy, with smog at its worst for the year. If you have any respiratory sensitivity, that is the month to avoid rather than the heat.

Pack by season: light breathable clothing and sun protection for April–June; a rain shell and quick-dry layers for July–September; a warm layer plus a mask for November–January. An eSIM set up before you land saves queueing at the airport for a local SIM.

Delhi's high season runs roughly December to February, when the rest of northern India is also at its best. Hotel rates and flight prices are highest then, and the Christmas–New Year week needs booking far ahead. November is busy too, with Diwali travel and the start of the wedding season, even though the air is at its worst.

The cheapest and quietest window is April to September, when heat or rain keeps domestic travel down. You will pay less and queue less, but you will also spend more time indoors and build slack into any train or flight connection. March and October sit in the middle: medium crowds, medium prices, and generally workable weather.

Festival dates move each year, so check them against your dates rather than assuming a fixed week. Holi falls in the north in March, Diwali usually lands in late October or November, and Independence Day on 15 August brings closures and security checks in the capital. Around any of these, expect transport and hotels to fill earlier than usual.

Prices swing with the season more than with anything else in Delhi. The figures below are 2026 estimates for a mid-range double room per night and are meant as a band, not a quote; check live rates for your dates. High season can sit at the top of the range or above it around Christmas and New Year, while the monsoon months often come in below it.

Flights follow the same pattern: December–February and the Diwali period are the expensive windows, and April to September is when fares soften. If your dates are flexible, shifting a trip from late December to late February usually costs less and avoids the fog risk on both ends of the journey.

Build the trip around mornings. Even in the good months, Delhi rewards an early start: sights are quieter, light is better and the day's heat or haze has not built up. In winter, though, wait for the fog to lift before relying on a flight or an early train.

Give yourself a buffer day on each side of any domestic flight or train in December and January, when fog delays are common. Book trains early, as the country guide advises, and keep small rupee notes for autos, tips and entry counters. If you are combining Delhi with the rest of the north, October and February are the months that work for both the plains and Rajasthan.