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Rainfall · Tamil Nadu

Rainfall in Madurai

953 mmof rain in an average year, 2006–2025

Madurai gets 34% of its rain from the monsoon, June to September, and October is its wettest month. In 2025 it got 948 mm, 1% below average (normal).

Octoberwettest month, 183 mm on average
2021wettest year, 1,401 mm
2016driest year, 558 mm
9months a year with 50 mm of rain or more

Month-wise rainfall in Madurai

Average rain in each month, 2006–2025.

050100150200JanJan: 20 mmFebFeb: 8 mmMarMar: 25 mmAprApr: 50 mmMayMay: 93 mmJunJun: 51 mmJulJul: 65 mmAugAug: 103 mmSepSep: 103 mmOctOct: 183 mmNovNov: 180 mmDecDec: 73 mm
MonthAverage rainShare of the year
January20 mm2%
February8 mm1%
March25 mm3%
April50 mm5%
May93 mm10%
June51 mm5%
July65 mm7%
August103 mm11%
September103 mm11%
October183 mm19%
November180 mm19%
December73 mm8%

Yearly rainfall in Madurai since 2006

Lighter bars are dry years, 20% or more below average (2009, 2012, 2013, 2016), when wells and borewells are drawn hardest. The last ten years averaged 17% more rain than the ten before.

05001000150020062006: 1,226 mm2007: 831 mm2008: 1,076 mm20092009: 648 mm2010: 1,041 mm2011: 793 mm20122012: 613 mm2013: 639 mm2014: 841 mm20152015: 1,064 mm2016: 558 mm2017: 983 mm20182018: 796 mm2019: 950 mm2020: 1,153 mm20212021: 1,401 mm2022: 1,298 mm2023: 1,141 mm20242024: 1,058 mm2025: 948 mm- - average 953 mm

What Madurai's rain is worth to a building

Every millimetre of rain on a square metre of roof is a litre of water. A 100 m² roof in Madurai sheds about 81,005 litres in an average year, most of it in a few wet months. Sent into a recharge pit, it refills the ground instead of flooding the street.

Your building: how much can you recharge?

Water you can put back each year1,62,010 L≈ 16 water tankers of 10,000 L

1 mm of rain on 1 m² is 1 litre. The surface factor allows for water lost to splash, evaporation and first-flush.

Rainwater harvesting cost in MaduraiGroundwater level in MaduraiPonds and lakes in MaduraiWater quality in Madurai

Frequently asked questions

What is the average annual rainfall in Madurai?

About 953 mm a year, averaged over 2006–2025 from NASA POWER satellite and weather-model data for the centre of the district. The wettest year in that time was 2021 (1,401 mm) and the driest was 2016 (558 mm).

Which month gets the most rain in Madurai?

October, with 183 mm in an average year, followed by November and August. February is the driest month (8 mm).

How much of Madurai's rain falls in the monsoon?

34% of a normal year's rain falls from June to September. 9 months average 50 mm or more.

How much did it rain in Madurai in 2025?

948 mm, which is 1% below the 2006–2025 average, or "normal" in the India Meteorological Department's terms.

Is rainfall in Madurai increasing or decreasing?

The last 10 years averaged 17% more rain than the 10 before them. Year-to-year swings are still bigger than that change.

How much rainwater can a house in Madurai harvest?

A 100 m² (about 1,076 sq ft) concrete roof in Madurai sheds about 81,005 litres in an average year: area × rainfall × 0.85 for splash and evaporation. Sent into a recharge pit, that refills the ground under the house instead of running into the drain.

Rainfall from NASA POWER (bias-corrected satellite and weather-model rainfall) at the centre of Madurai district. It reads close to, but not exactly the same as, India Meteorological Department rain-gauge totals, and rain varies within a district.

Rainfall in other districts of Tamil Nadu