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Rainfall · Chhattisgarh

Rainfall in Surguja

1,324 mmof rain in an average year, 2006–2025

Surguja gets 84% of its rain from the monsoon, June to September, and August is its wettest month. In 2025 it got 1,587 mm, 20% above average (excess).

Augustwettest month, 361 mm on average
2013wettest year, 1,611 mm
2010driest year, 960 mm
5months a year with 50 mm of rain or more

Month-wise rainfall in Surguja

Average rain in each month, 2006–2025.

0100200300400JanJan: 15 mmFebFeb: 19 mmMarMar: 24 mmAprApr: 22 mmMayMay: 43 mmJunJun: 180 mmJulJul: 352 mmAugAug: 361 mmSepSep: 221 mmOctOct: 69 mmNovNov: 8 mmDecDec: 10 mm
MonthAverage rainShare of the year
January15 mm1%
February19 mm1%
March24 mm2%
April22 mm2%
May43 mm3%
June180 mm14%
July352 mm27%
August361 mm27%
September221 mm17%
October69 mm5%
November8 mm1%
December10 mm1%

Yearly rainfall in Surguja 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 6% more rain than the ten before.

050010001500200020062006: 1,143 mm2007: 1,248 mm2008: 1,398 mm20092009: 994 mm2010: 960 mm2011: 1,481 mm20122012: 1,409 mm2013: 1,611 mm2014: 1,276 mm20152015: 1,345 mm2016: 1,408 mm2017: 1,358 mm20182018: 1,124 mm2019: 1,315 mm2020: 1,583 mm20212021: 1,281 mm2022: 1,293 mm2023: 1,264 mm20242024: 1,408 mm2025: 1,587 mm- - average 1,324 mm

What Surguja'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 Surguja sheds about 1,12,540 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 year2,25,080 L≈ 23 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 SurgujaGroundwater level in SurgujaPonds and lakes in Surguja

Frequently asked questions

What is the average annual rainfall in Surguja?

About 1,324 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 2013 (1,611 mm) and the driest was 2010 (960 mm).

Which month gets the most rain in Surguja?

August, with 361 mm in an average year, followed by July and September. November is the driest month (8 mm).

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

84% of a normal year's rain falls from June to September. 5 months average 50 mm or more.

How much did it rain in Surguja in 2025?

1,587 mm, which is 20% above the 2006–2025 average, or "excess" in the India Meteorological Department's terms.

Is rainfall in Surguja increasing or decreasing?

The last 10 years averaged 6% more rain than the 10 before them. Year-to-year swings are still bigger than that change.

How much rainwater can a house in Surguja harvest?

A 100 m² (about 1,076 sq ft) concrete roof in Surguja sheds about 1,12,540 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 Surguja 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 Chhattisgarh