Rainfall in Kodagu
Kodagu gets 78% of its rain from the monsoon, June to September, and July is its wettest month. In 2025 it got 2,576 mm, 13% below average (normal).
Month-wise rainfall in Kodagu
Average rain in each month, 2006–2025.
| Month | Average rain | Share of the year |
|---|---|---|
| January | 10 mm | 0% |
| February | 4 mm | 0% |
| March | 25 mm | 1% |
| April | 57 mm | 2% |
| May | 209 mm | 7% |
| June | 597 mm | 20% |
| July | 801 mm | 27% |
| August | 574 mm | 19% |
| September | 342 mm | 12% |
| October | 221 mm | 7% |
| November | 99 mm | 3% |
| December | 28 mm | 1% |
Yearly rainfall in Kodagu since 2006
Lighter bars are dry years, 20% or more below average (2016, 2017, 2018, 2023), when wells and borewells are drawn hardest. The last ten years averaged 32% less rain than the ten before.
What Kodagu'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 Kodagu sheds about 2,52,195 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?
1 mm of rain on 1 m² is 1 litre. The surface factor allows for water lost to splash, evaporation and first-flush.
Frequently asked questions
What is the average annual rainfall in Kodagu?
About 2,967 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 (4,548 mm) and the driest was 2023 (1,769 mm).
Which month gets the most rain in Kodagu?
July, with 801 mm in an average year, followed by June and August. February is the driest month (4 mm).
How much of Kodagu's rain falls in the monsoon?
78% of a normal year's rain falls from June to September. 8 months average 50 mm or more.
How much did it rain in Kodagu in 2025?
2,576 mm, which is 13% below the 2006–2025 average, or "normal" in the India Meteorological Department's terms.
Is rainfall in Kodagu increasing or decreasing?
The last 10 years averaged 32% less rain than the 10 before them. Year-to-year swings are still bigger than that change.
How much rainwater can a house in Kodagu harvest?
A 100 m² (about 1,076 sq ft) concrete roof in Kodagu sheds about 2,52,195 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 Kodagu district. It reads close to, but not exactly the same as, India Meteorological Department rain-gauge totals, and rain varies within a district.