What's on in Chennai (Madras), India through the year
Chennai, India has 5 curated events through the year — 1 festival, 1 holiday, 1 season and 2 hazard seasons. The ones to plan around: Margazhi music season (December) and Pongal (January). December to January are its peak-crowd months.
Updated September 2026 · every event curated and sourced · dates for 2026 where they are announced, the usual window where they are not
Best time to visit Chennai (Madras): weather, crowds and notes →
Chennai (Madras) events and crowds by month
January in Chennai (Madras)
Chennai (Madras) weather in January →Peak crowds — Pongal, Margazhi music season
- Holiday
Pongal
13–17 Jan · usuallyHarvestClosuresFour days of harvest holiday. The city empties towards the villages, offices and many restaurants shut, and every bus and train out is booked a fortnight ahead. Source ↗
Still on: Margazhi music season (15 Dec – 15 Jan)
February in Chennai (Madras)
Chennai (Madras) weather in February →Busy — school holidays in 2 of the markets that fill it, one of its best months for weather
Nothing new starts in February.
March in Chennai (Madras)
Chennai (Madras) weather in March →Busy — school holidays in 2 of the markets that fill it, one of its best months for weather
Nothing new starts in March.
April in Chennai (Madras)
Chennai (Madras) weather in April →Busy — Summer vacation (Kerala / far south) in India, school holidays in 2 of the markets that fill it
Nothing new starts in April.
May in Chennai (Madras)
Chennai (Madras) weather in May →Busy — Summer vacation (north & east) in India
- Hazard
Agni Natchathiram heat
4–28 May · usuallyExtreme heatThe fortnight the Tamil almanac names as the hottest of the year, and the city agrees with it. Schools are out, work starts early, and nobody crosses the Marina sand between eleven and four. Source ↗
June in Chennai (Madras)
Chennai (Madras) weather in June →Busy — Summer vacation (north & east) in India, school holidays in 2 of the markets that fill it
Nothing new starts in June.
July in Chennai (Madras)
Chennai (Madras) weather in July →Shoulder season — school holidays in 5 of the markets that fill it, an ordinary month
Nothing new starts in July.
August in Chennai (Madras)
Chennai (Madras) weather in August →Shoulder season — school holidays in 4 of the markets that fill it, an ordinary month
Nothing new starts in August.
September in Chennai (Madras)
Chennai (Madras) weather in September →Shoulder season — school holidays in 3 of the markets that fill it, an ordinary month
Nothing new starts in September.
October in Chennai (Madras)
Chennai (Madras) weather in October →Busy — Autumn break (Dussehra / Diwali) in India, school holidays in 2 of the markets that fill it
- Hazard
Bay of Bengal cyclone season
1 Oct – 15 Dec · usuallyClosuresA system or two a season comes close enough to shut the airport for a day and put the fishing fleet ashore. Warnings run several days out, so the cost is usually a lost day rather than a lost trip. Source ↗
- Season
Northeast monsoon
15 Oct – 31 Dec · usuallyRiskMost of Chennai's rain falls in these ten weeks, in long grey spells rather than afternoon storms, and the low parts of the city go under when a depression parks offshore.
November in Chennai (Madras)
Chennai (Madras) weather in November →Quiet — one of its worst months for weather
Nothing new starts in November.
Still on: Bay of Bengal cyclone season (1 Oct – 15 Dec (usually)), Northeast monsoon (15 Oct – 31 Dec (usually))
December in Chennai (Madras)
Chennai (Madras) weather in December →Peak crowds — Margazhi music season, Winter break in India
- Festival
Margazhi music season
15 Dec – 15 JanMajor festivalCrowdedA thousand-odd Carnatic concerts across the sabhas of Mylapore and T. Nagar, most of them free or a few hundred rupees, and canteens people turn up for on their own account. Stay near Luz Corner. Source ↗
Still on: Bay of Bengal cyclone season (1 Oct – 15 Dec (usually)), Northeast monsoon (15 Oct – 31 Dec (usually))