Climate averages 1991–2020

New Delhi weather
in September.

A hot, wet month: the joint 5th warmest and the 10th driest of the year.

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

Average high 32.3°C Daytime mean, September
Average low 24.2°C Night-time mean, September
Rainfall 93 mm 10 days with ≥1 mm
Daylight 12 h Sunrise to sunset, per day
Every month in New Delhi · average highYear overview

September is a hot month in New Delhi: daytime highs average 32.3°C and nights cool to about 24.2°C. By daytime temperature it is the joint 5th warmest of the 12 months.

Expect about 93 mm of rain on roughly 10 days, which makes September a wet month (the 10th driest of the 12 months). Daylight, from sunrise to sunset, lasts about 12 h 21 min on an average September day.

The nearest other city in this atlas is Delhi (4 km away). In September its highs average 32.2°C, about as warm as New Delhi, with 99 mm of rain.

Among the 692 cities listed in India, New Delhi ranks joint 110th of 692 for the warmest September highs and joint 108th of 692 for the driest September (rainfall, lowest first). The mean September high of those 692 cities is 30.7°C; New Delhi is 1.7°C warmer than that mean.

From September to October, average highs fall by 0.5°C to 31.9°C, and monthly rainfall falls from 93 mm to 13 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. 51015202530354045 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 2000

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

Every month, side by side

New Delhi climate table

1991–2020
Monthly climate averages for New Delhi, 1991–2020
MonthAverage highHigh / lowAverage lowRainfall mm/monthRain days ≥1 mm/dayDaylight hours/dayDay­light h/day
January 20.1°C8.0°C8.0°C252.410.511 h
February 23.6°C10.8°C10.8°C313.511.211 h
March 29.5°C15.4°C15.4°C223.412.012 h
April 36.4°C21.1°C21.1°C143.612.813 h
May 39.8°C25.7°C25.7°C205.013.614 h
June 38.5°C28.0°C28.0°C699.113.914 h
July 33.9°C27.0°C27.0°C19519.213.814 h
August 32.3°C26.0°C26.0°C17819.313.213 h
September, selected 32.3°C24.2°C24.2°C9310.112.412 h
October 31.9°C19.3°C19.3°C132.411.512 h
November 27.3°C14.3°C14.3°C5.21.110.811 h
December 22.3°C9.6°C9.6°C6.71.010.410 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 New Delhi

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 New Delhi) is explained once on the New Delhi year overview and on the Sources, method and limits page.

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