Climate averages 1991–2020

Pallāvaram weather
in September.

A hot, wet month: the 6th warmest and the 9th driest of the year.

Long-term climate patterns, not a forecast for a particular trip.

Average high 32.4°C Daytime mean, September
Average low 26.0°C Night-time mean, September
Rainfall 102 mm 16 days with ≥1 mm
Daylight 12 h Sunrise to sunset, per day
Every month in Pallāvaram · average highYear overview

September is a hot month in Pallāvaram: daytime highs average 32.4°C and nights cool to about 26.0°C. By daytime temperature it is the 6th warmest of the 12 months.

Expect about 102 mm of rain on roughly 16 days, which makes September a wet month (the 9th driest of the 12 months). Daylight, from sunrise to sunset, lasts about 12 h 13 min on an average September day.

The nearest other city in this atlas is Tambaram (5 km away). In September its highs average 32.7°C, about as warm as Pallāvaram, with 102 mm of rain.

Among the 692 cities listed in India, Pallāvaram ranks joint 101st of 692 for the warmest September highs and joint 154th of 692 for the driest September (rainfall, lowest first). The mean September high of those 692 cities is 30.7°C; Pallāvaram is 1.8°C warmer than that mean.

From September to October, average highs fall by 2.0°C to 30.4°C, and monthly rainfall rises from 102 mm to 208 mm.

The annual picture

September in context

30-year average
Average highAverage low°C
Average daily high and low temperatures by month The same values are available in the monthly table below. Lines show mean daily maxima and minima, not a forecast interval. 152025303540 JanFebMarAprMayJunJulAugSepOctNovDec

Monthly rainfall

Average total · mm
Average monthly rainfall totalsEach bar is a mean monthly total over 1991–2020. Full numbers are in the table. JanFebMarAprMayJunJulAugSepOctNovDec 2500

Averages from hourly ERA5 reanalysis data. Actual weather varies from year to year. How these numbers are calculated

Every month, side by side

Pallāvaram climate table

1991–2020
Monthly climate averages for Pallāvaram, 1991–2020
MonthAverage highHigh / lowAverage lowRainfall mm/monthRain days ≥1 mm/dayDaylight hours/dayDay­light h/day
January 27.8°C20.9°C20.9°C143.111.511 h
February 29.8°C21.2°C21.2°C6.41.511.712 h
March 32.3°C23.1°C23.1°C8.21.312.112 h
April 34.2°C26.1°C26.1°C152.412.412 h
May 36.2°C28.0°C28.0°C383.812.713 h
June 35.2°C27.7°C27.7°C6610.812.913 h
July 34.0°C27.0°C27.0°C7013.912.813 h
August 33.1°C26.4°C26.4°C9414.712.613 h
September, selected 32.4°C26.0°C26.0°C10216.112.212 h
October 30.4°C24.7°C24.7°C20819.311.912 h
November 28.4°C23.4°C23.4°C22716.411.512 h
December 27.3°C22.1°C22.1°C1179.111.411 h

Rainfall is the average of the 30 separate monthly totals. A rain day is a local calendar day with at least 1 mm of precipitation. Daylight is the calculated sunrise-to-sunset length, not measured sunshine.

Compare places

September in nearby cities

Distance from Pallāvaram

Read the numbers correctly

Climate, not a promise.

These patterns help compare months. They cannot tell you the weather on a specific day of your trip.

Sources, method and limits

How these numbers are made (what the highs, lows and rain days mean, the sources and the model cell used for Pallāvaram) is explained once on the Pallāvaram year overview and on the Sources, method and limits page.

Chennai, Tambaram and Neelankarai lie in the same rainfall cell, so their rainfall figures are identical to these; temperatures differ because they come from smaller 0.1° cells.