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Rainfall · Uttar Pradesh

Rainfall in Sonbhadra

961 mmof rain in an average year, 2006–2025

Sonbhadra gets 86% of its rain from the monsoon, June to September, and July is its wettest month. In 2025 it got 1,317 mm, 37% above average (excess).

Julywettest month, 273 mm on average
2025wettest year, 1,317 mm
2009driest year, 623 mm
4months a year with 50 mm of rain or more

Month-wise rainfall in Sonbhadra

Average rain in each month, 2006–2025.

0100200300JanJan: 12 mmFebFeb: 15 mmMarMar: 15 mmAprApr: 11 mmMayMay: 26 mmJunJun: 126 mmJulJul: 273 mmAugAug: 259 mmSepSep: 166 mmOctOct: 47 mmNovNov: 5 mmDecDec: 7 mm
MonthAverage rainShare of the year
January12 mm1%
February15 mm2%
March15 mm2%
April11 mm1%
May26 mm3%
June126 mm13%
July273 mm28%
August259 mm27%
September166 mm17%
October47 mm5%
November5 mm1%
December7 mm1%

Yearly rainfall in Sonbhadra since 2006

Lighter bars are dry years, 20% or more below average (2009, 2010), when wells and borewells are drawn hardest. The last ten years averaged 15% more rain than the ten before.

05001000150020062006: 785 mm2007: 843 mm2008: 1,017 mm20092009: 623 mm2010: 633 mm2011: 1,060 mm20122012: 993 mm2013: 1,060 mm2014: 902 mm20152015: 1,025 mm2016: 1,202 mm2017: 810 mm20182018: 843 mm2019: 1,037 mm2020: 1,247 mm20212021: 1,070 mm2022: 869 mm2023: 827 mm20242024: 1,060 mm2025: 1,317 mm- - average 961 mm

What Sonbhadra'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 Sonbhadra sheds about 81,685 litres in an average year, most of it in four monsoon 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 year1,63,370 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 SonbhadraGroundwater level in SonbhadraPonds and lakes in SonbhadraWater quality in Sonbhadra

Frequently asked questions

What is the average annual rainfall in Sonbhadra?

About 961 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 2025 (1,317 mm) and the driest was 2009 (623 mm).

Which month gets the most rain in Sonbhadra?

July, with 273 mm in an average year, followed by August and September. November is the driest month (5 mm).

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

86% of a normal year's rain falls from June to September. 4 months average 50 mm or more.

How much did it rain in Sonbhadra in 2025?

1,317 mm, which is 37% above the 2006–2025 average, or "excess" in the India Meteorological Department's terms.

Is rainfall in Sonbhadra increasing or decreasing?

The last 10 years averaged 15% more rain than the 10 before them. Year-to-year swings are still bigger than that change.

How much rainwater can a house in Sonbhadra harvest?

A 100 m² (about 1,076 sq ft) concrete roof in Sonbhadra sheds about 81,685 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 Sonbhadra 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 Uttar Pradesh