Climate averages 1991–2020

Tiruchirappalli weather
in October.

A hot, wet month: the 9th warmest and the 11th driest of the year.

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

Average high 32.3°C Daytime mean, October
Average low 24.2°C Night-time mean, October
Rainfall 159 mm 19 days with ≥1 mm
Daylight 12 h Sunrise to sunset, per day
Every month in Tiruchirappalli · average highYear overview

October is a hot month in Tiruchirappalli: daytime highs average 32.3°C and nights cool to about 24.2°C. By daytime temperature it is the 9th warmest of the 12 months.

Expect about 159 mm of rain on roughly 19 days, which makes October a wet month (the 11th driest of the 12 months). Daylight, from sunrise to sunset, lasts about 11 h 54 min on an average October day.

The nearest other city in this atlas is Thanjavur (48 km away). In October its highs average 31.9°C, about as warm as Tiruchirappalli, with 174 mm of rain.

Among the 692 cities listed in India, Tiruchirappalli ranks joint 103rd of 692 for the warmest October highs and joint 597th of 692 for the driest October (rainfall, lowest first). The mean October high of those 692 cities is 30.6°C; Tiruchirappalli is 1.8°C warmer than that mean.

From October to November, average highs fall by 2.7°C to 29.6°C, and monthly rainfall rises from 159 mm to 176 mm.

The annual picture

October 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. 15202530354045 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

Tiruchirappalli climate table

1991–2020
Monthly climate averages for Tiruchirappalli, 1991–2020
MonthAverage highHigh / lowAverage lowRainfall mm/monthRain days ≥1 mm/dayDaylight hours/dayDay­light h/day
January 30.1°C20.1°C20.1°C122.511.612 h
February 33.1°C21.1°C21.1°C9.92.011.812 h
March 36.2°C23.2°C23.2°C173.112.112 h
April 37.7°C25.9°C25.9°C376.612.412 h
May 38.3°C27.2°C27.2°C5310.412.613 h
June 36.7°C26.6°C26.6°C479.512.713 h
July 35.8°C26.0°C26.0°C429.212.713 h
August 35.5°C25.6°C25.6°C6611.412.512 h
September 35.2°C25.4°C25.4°C9414.012.212 h
October, selected 32.3°C24.2°C24.2°C15918.811.912 h
November 29.6°C22.5°C22.5°C17615.911.612 h
December 28.7°C21.0°C21.0°C818.211.512 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

October in nearby cities

Distance from Tiruchirappalli

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