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Rainfall · Tamil Nadu

Rainfall in Tiruppur

779 mmof rain in an average year, 2006–2025

Tiruppur gets 38% of its rain from the monsoon, June to September, and October is its wettest month. In 2025 it got 756 mm, 3% below average (normal).

Octoberwettest month, 149 mm on average
2021wettest year, 1,188 mm
2016driest year, 411 mm
7months a year with 50 mm of rain or more

Month-wise rainfall in Tiruppur

Average rain in each month, 2006–2025.

050100150200JanJan: 13 mmFebFeb: 7 mmMarMar: 22 mmAprApr: 41 mmMayMay: 87 mmJunJun: 53 mmJulJul: 61 mmAugAug: 87 mmSepSep: 92 mmOctOct: 149 mmNovNov: 122 mmDecDec: 45 mm
MonthAverage rainShare of the year
January13 mm2%
February7 mm1%
March22 mm3%
April41 mm5%
May87 mm11%
June53 mm7%
July61 mm8%
August87 mm11%
September92 mm12%
October149 mm19%
November122 mm16%
December45 mm6%

Yearly rainfall in Tiruppur since 2006

Lighter bars are dry years, 20% or more below average (2009, 2012, 2013, 2014, 2016), when wells and borewells are drawn hardest. The last ten years averaged 26% more rain than the ten before.

05001000150020062006: 684 mm2007: 707 mm2008: 799 mm20092009: 537 mm2010: 850 mm2011: 749 mm20122012: 522 mm2013: 556 mm2014: 605 mm20152015: 867 mm2016: 411 mm2017: 833 mm20182018: 753 mm2019: 852 mm2020: 942 mm20212021: 1,188 mm2022: 1,061 mm2023: 843 mm20242024: 1,059 mm2025: 756 mm- - average 779 mm

What Tiruppur'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 Tiruppur sheds about 66,215 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 year1,32,430 L≈ 13 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 TiruppurGroundwater level in TiruppurPonds and lakes in Tiruppur

Frequently asked questions

What is the average annual rainfall in Tiruppur?

About 779 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 (1,188 mm) and the driest was 2016 (411 mm).

Which month gets the most rain in Tiruppur?

October, with 149 mm in an average year, followed by November and September. February is the driest month (7 mm).

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

38% of a normal year's rain falls from June to September. 7 months average 50 mm or more.

How much did it rain in Tiruppur in 2025?

756 mm, which is 3% below the 2006–2025 average, or "normal" in the India Meteorological Department's terms.

Is rainfall in Tiruppur increasing or decreasing?

The last 10 years averaged 26% more rain than the 10 before them. Year-to-year swings are still bigger than that change.

How much rainwater can a house in Tiruppur harvest?

A 100 m² (about 1,076 sq ft) concrete roof in Tiruppur sheds about 66,215 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 Tiruppur 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