September is close to Chamarajanagar's year-round average, with average highs near 30.7°C and lows around 17.6°C (mean 24.2°C). It is a relatively wet time of year, averaging 110 mm of rainfall and 81% relative humidity across the period.
September is close to Chamarajanagar's year-round average. Across 45 years of records, the warmest September in Chamarajanagar was 2015 — when the month averaged 26.6°C — while the coldest were 1983 and 1996 at 22.2°C. Typical September days reach 30.7°C with nights near 17.6°C. The long-term trend is warming, about 0.2°C per decade.
Ranked against the other 11 months using 1981–2025 averages.
| Metric | 1980s | 1990s | 2000s | 2010s | 2020s | Change |
|---|---|---|---|---|---|---|
| Avg Temp | 23.8°C | 23.8°C | 24.2°C | 24.6°C | 24.4°C | +0.6°C |
| Avg High | 30.4°C | 30.3°C | 30.7°C | 31.6°C | 30.6°C | +0.2°C |
| Avg Low | 17.3°C | 17.3°C | 17.6°C | 17.7°C | 18.2°C | +0.9°C |
| Avg Rain | 116 mm | 96 mm | 113 mm | 121 mm | 103 mm | -13 mm |
September temperatures in Chamarajanagar have risen by about 0.8°C between 1981–1985 and 2021–2025.
September has ranged from a record low of 15.6°C (1994) to a record high of 34.7°C (2015).
Rainfall in September is a relatively wet time of year, averaging 110 mm, with a wettest year of 250 mm.
A good time to visit Chamarajanagar
September is a good time to visit Chamarajanagar, with days averaging 30.7°C and nights around 17.6°C (mean 24.2°C, close to Chamarajanagar's yearly average) and higher rainfall. January and December are marginally more temperate, but September still suits most travellers.
| Year | High | Low | Avg | Rainfall | Humidity | Wind | Solar |
|---|---|---|---|---|---|---|---|
| 2025 | 31.6°C | 18.7°C | 25.1°C | 83 mm | 79% | 2.4 m/s | 4.6 |
| 2024 | 31.2°C | 18.6°C | 24.9°C | 35 mm | 79% | 2.7 m/s | 5 |
| 2023 | 31.5°C | 18.3°C | 24.9°C | 125 mm | 80% | 2.7 m/s | 4.5 |
| 2022 | 28.9°C | 17.9°C | 23.4°C | 107 mm | 87% | 2 m/s | 4.9 |
| 2021 | 30.5°C | 18.5°C | 24.5°C | 113 mm | 81% | 2.5 m/s | 4.6 |
| 2020 | 30.0°C | 17.4°C | 23.7°C | 154 mm | 84% | 2.6 m/s | 4.1 |
| 2019 | 30.9°C | 17.5°C | 24.2°C | 159 mm | 84% | 2.4 m/s | 4.5 |
| 2018 | 33.4°C | 17.9°C | 25.6°C | 119 mm | 74% | 2 m/s | 5.8 |
| 2017 🌧️ | 29.3°C | 17.5°C | 23.4°C | 250 mm | 86% | 1.9 m/s | 4.7 |
| 2016 | 32.5°C | 17.0°C | 24.8°C | 23 mm | 74% | 3 m/s | 5 |
| 2015 🔥 | 34.7°C | 18.6°C | 26.6°C | 89 mm | 75% | 2.3 m/s | 5.3 |
| 2014 | 30.0°C | 18.2°C | 24.1°C | 154 mm | 83% | 2.4 m/s | 5.1 |
| 2013 | 30.1°C | 17.4°C | 23.7°C | 138 mm | 84% | 2.4 m/s | 4.7 |
| 2012 | 32.8°C | 18.1°C | 25.4°C | 83 mm | 77% | 2.8 m/s | 5.2 |
| 2011 | 32.5°C | 17.3°C | 24.9°C | 87 mm | 80% | 2.9 m/s | 5 |
| 2010 | 29.7°C | 17.3°C | 23.5°C | 108 mm | 83% | 2.2 m/s | 4.6 |
| 2009 | 30.7°C | 17.4°C | 24.1°C | 140 mm | 84% | 2.4 m/s | 4.5 |
| 2008 | 29.2°C | 17.1°C | 23.2°C | 93 mm | 85% | 2.3 m/s | 5.3 |
| 2007 | 28.5°C | 17.2°C | 22.8°C | 170 mm | 87% | 2.5 m/s | 4.2 |
| 2006 | 31.1°C | 16.8°C | 24.0°C | 134 mm | 83% | 2.6 m/s | 4.7 |
| 2005 | 29.9°C | 18.0°C | 24.0°C | 112 mm | 85% | 2.7 m/s | 4.7 |
| 2004 | 30.1°C | 17.4°C | 23.8°C | 157 mm | 84% | 1.9 m/s | 4.9 |
| 2003 | 33.2°C | 18.2°C | 25.7°C | 34 mm | 77% | 2.7 m/s | 5.8 |
| 2002 | 32.7°C | 17.7°C | 25.2°C | 49 mm | 75% | 2.5 m/s | 5.9 |
| 2001 | 31.4°C | 18.2°C | 24.8°C | 130 mm | 81% | 1.9 m/s | 5.3 |
| 2000 | 30.3°C | 18.2°C | 24.3°C | 113 mm | 84% | 1.9 m/s | 4.8 |
| 1999 | 32.1°C | 17.6°C | 24.8°C | 71 mm | 77% | 2.4 m/s | 5.4 |
| 1998 | 28.6°C | 17.7°C | 23.1°C | 160 mm | 88% | 2.4 m/s | 4.6 |
| 1997 | 29.9°C | 17.8°C | 23.8°C | 100 mm | 84% | 2 m/s | 4.9 |
| 1996 | 27.6°C | 16.8°C | 22.2°C | 146 mm | 87% | 2.5 m/s | 4.5 |
| 1995 | 29.6°C | 17.5°C | 23.5°C | 101 mm | 83% | 2.6 m/s | 5.1 |
| 1994 | 32.3°C | 15.6°C | 24.0°C | 57 mm | 79% | 2.6 m/s | 5.6 |
| 1993 | 30.1°C | 17.3°C | 23.7°C | 82 mm | 81% | 2.3 m/s | 5.4 |
| 1992 | 29.8°C | 17.6°C | 23.7°C | 117 mm | 82% | 2.3 m/s | 4.6 |
| 1991 | 31.1°C | 17.2°C | 24.1°C | 77 mm | 81% | 2 m/s | 5 |
| 1990 | 31.8°C | 18.1°C | 24.9°C | 52 mm | 77% | 2.5 m/s | 5 |
| 1989 | 29.7°C | 16.8°C | 23.3°C | 126 mm | 83% | 2.1 m/s | 5.1 |
| 1988 | 28.1°C | 18.0°C | 23.1°C | 164 mm | 87% | 2.5 m/s | 4.9 |
| 1987 | 32.2°C | 18.1°C | 25.2°C | 44 mm | 77% | 2.1 m/s | 5.3 |
| 1986 | 31.6°C | 16.5°C | 24.0°C | 152 mm | 79% | 2.3 m/s | 4.4 |
| 1985 | 31.5°C | 17.4°C | 24.5°C | 75 mm | 78% | 2.2 m/s | 4.6 |
| 1984 | 32.6°C | 17.3°C | 24.9°C | 83 mm | 76% | 2.1 m/s | 4.8 |
| 1983 ❄️ | 28.1°C | 16.3°C | 22.2°C | 162 mm | 86% | 2.9 m/s | — |
| 1982 | 30.8°C | 17.1°C | 24.0°C | 65 mm | 79% | 2.5 m/s | — |
| 1981 | 28.6°C | 17.8°C | 23.2°C | 175 mm | 87% | 2 m/s | — |
Actual recorded September data for each year, 1981–2025 — sourced from NASA POWER.
The average high in September is around 30.7°C with lows near 17.6°C (mean 24.2°C), based on 45 years of NASA POWER data.
September averages 110 mm of rainfall in Chamarajanagar, a relatively wet time of year. The wettest on record was 250 mm in 2017.
The hottest September reached 34.7°C in 2015. The coldest dipped to 15.6°C in 1994.
Comparing the earliest years on record (1981–1985) with the most recent (2021–2025), average September temperatures have risen by about 0.8°C. Daytime highs moved from 30.3°C to 30.7°C and overnight lows from 17.2°C to 18.4°C over the same span.
September is close to Chamarajanagar's year-round average and a relatively wet time of year, so plan for around 30.7°C daytime highs and 17.6°C at night.
Not quite — September is the 7th coolest month in Chamarajanagar, averaging 24.2°C.
For September in Chamarajanagar, pack light, breathable clothing and sun protection, with typical highs of 30.7°C and lows of 17.6°C. Bring an umbrella or light rain jacket too.
Relative humidity in September averages 81% — quite humid.
Average wind speed in September is 2.4 m/s. The windiest September on record averaged 3 m/s (2016).
The wettest September on record was 2017 with 250 mm. On average, September sees 110 mm.
All figures are derived from NASA POWER (Prediction Of Worldwide Energy Resources), based on MERRA-2 satellite reanalysis, covering 1981–2025.
Explore how the weather in Chamarajanagar behaves each September, based on 45 years of NASA POWER climate data from 1981 to 2025. This page breaks down average temperatures, rainfall, humidity, wind and solar radiation for September specifically, along with year-by-year records and how the month has changed over the decades.
