Weather in Madurai in September

A hard month. September asks something of you. Go in knowing what. Daytime highs average 34.2 °C and the afternoon is not negotiable — outdoor plans move to early morning or evening.

September ranks 9 of 12 in Madurai: past the worst of the year but short of January, which is the month to book if the dates are open.

Rain on 15 days, 3 of them heavy. Enough to need a plan B, not enough to need a plan around it. Pack for heat management rather than style: shade, water, and a schedule that gives up on the middle of the day.

What the averages hide

Averages flatten a month, and this one hides a few things: 12 days clear 35 °C, so a serious heatwave is normal rather than notable. Across the twenty years measured, the hottest September day reached 40.3 °C and the coldest night fell to 21 °C, and the wettest single day dropped 48 mm — roughly 42% of the month's rain in one day.

September is moderately variable: 27 mm in the driest year against 305 mm in the wettest, around an average of 115 mm. Roughly two Septembers in three land near that average, and the third does something else entirely.

Wind is light at 6.6 km/h, so the temperature on the page is close to the temperature on your skin, and humidity is unremarkable at 70%.

How September sits in the year

Temperatures hold steady either side: 34.7 °C in August, 34.2 here, 32 in October. Nothing about the timing within the month matters much. Rain is the thing that moves: October brings 5 days more of it, so the earlier half of a flexible trip is the safer half.

Daylight in September

Madurai sits close enough to the equator that daylight barely moves all year — 12.2 hours in September, against a range of just 1.2 hours across the whole calendar. Sunrise and sunset land at roughly the same time whenever you come.

An inland climate

Despite being inland, the year stays fairly even: 18.7 °C between the year's warmest afternoons and coldest nights.

How busy it gets

Off season. The genuine off season: cheapest by a distance, with the caveat that some tours and restaurants close entirely.

Crowd levels are estimated from climate desirability and school-holiday calendars, not from visitor numbers.

September in Madurai versus nearby

If Madurai is one option among several, the nearby comparison is worth making. Teni is close enough to be a coin toss — 2.5 °C cooler, 3 days more rain. Munnar is a better bet in September — 13.6 °C cooler, 6 days more rain.

So: September is a compromise. January is 38 points better and is what Madurai is actually like at its best — worth moving the trip for if that is possible, and worth adjusting expectations for if it is not.

Every month in Madurai

See all twelve months in Madurai, or where else to go in September.