September is one of the cooler months of the year in Chamarajanagar, with average highs near 28.1°C and lows around 19.3°C (mean 23.7°C). It is a relatively wet time of year, averaging 110 mm of rainfall and 81% relative humidity across the period.
September is one of the cooler months of the year in Chamarajanagar. Across 45 years of records, the warmest September in Chamarajanagar was 2018 — when the month averaged 25.3°C — while the coldest was 1983 at 22.4°C. Typical September days reach 28.1°C with nights near 19.3°C. The long-term trend is warming, about 0.2°C per decade.
September is a relatively wet time of year in Chamarajanagar, averaging 110 mm of rainfall. The wettest September on record was 2017 with 250 mm, while the driest was 2016 at 23 mm.
Relative humidity in Chamarajanagar during September averages 81%. The most humid September was 1998 at 88%, and the least humid was 2016 at 74%.
September receives about 4.9 kWh/m²/day of solar energy in Chamarajanagar. The sunniest September was 2002 at 5.9 kWh/m²/day, and the cloudiest was 2020 at 4.1.
Average wind speed in Chamarajanagar during September is 2.4 m/s. The windiest September was 2016 at 3 m/s, while the calmest were 2001, 2004 and 2017, among others at 1.9 m/s.
Ranked against the other 11 months using 1981–2025 averages.
| Metric | 1980s | 1990s | 2000s | 2010s | 2020s | Change |
|---|---|---|---|---|---|---|
| Avg Temp | 23.5°C | 23.5°C | 23.7°C | 24.0°C | 24.0°C | +0.5°C |
| Avg High | 27.9°C | 27.8°C | 27.9°C | 28.7°C | 28.4°C | +0.5°C |
| Avg Low | 19.0°C | 19.1°C | 19.4°C | 19.4°C | 19.6°C | +0.6°C |
| Avg Rain | 116 mm | 96 mm | 113 mm | 121 mm | 103 mm | -13 mm |
September temperatures in Chamarajanagar have risen by about 0.9°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 28.1°C and nights around 19.3°C (mean 23.7°C, close to Chamarajanagar's yearly average) and higher rainfall. December and January are marginally more temperate, but September still suits most travellers.
| Year | Avg High | Avg Temp | Avg Low | Hottest Day | Coldest Day | Rainfall | Humidity | Wind | Solar |
|---|---|---|---|---|---|---|---|---|---|
| 2025 | 29.5°C | 24.8°C | 20.0°C | 31.6°C | 18.7°C | 83 mm | 79% | 2.4 m/s | 4.6 |
| 2024 | 29.5°C | 24.7°C | 19.9°C | 31.2°C | 18.6°C | 35 mm | 79% | 2.7 m/s | 5 |
| 2023 | 29.1°C | 24.4°C | 19.8°C | 31.5°C | 18.3°C | 125 mm | 80% | 2.7 m/s | 4.5 |
| 2022 | 27.0°C | 23.1°C | 19.1°C | 28.9°C | 17.9°C | 107 mm | 87% | 2 m/s | 4.9 |
| 2021 | 28.3°C | 24.0°C | 19.6°C | 30.5°C | 18.5°C | 113 mm | 81% | 2.5 m/s | 4.6 |
| 2020 | 27.2°C | 23.2°C | 19.3°C | 30.0°C | 17.4°C | 154 mm | 84% | 2.6 m/s | 4.1 |
| 2019 | 27.5°C | 23.6°C | 19.6°C | 30.9°C | 17.5°C | 159 mm | 84% | 2.4 m/s | 4.5 |
| 2018 🔥 | 31.0°C | 25.3°C | 19.5°C | 33.4°C | 17.9°C | 119 mm | 74% | 2 m/s | 5.8 |
| 2017 🌧️ | 27.0°C | 23.4°C | 19.8°C | 29.3°C | 17.5°C | 250 mm | 86% | 1.9 m/s | 4.7 |
| 2016 | 30.1°C | 24.6°C | 19.2°C | 32.5°C | 17.0°C | 23 mm | 74% | 3 m/s | 5 |
| 2015 | 30.4°C | 25.2°C | 20.0°C | 34.7°C | 18.6°C | 89 mm | 75% | 2.3 m/s | 5.3 |
| 2014 | 27.8°C | 23.6°C | 19.3°C | 30.0°C | 18.2°C | 154 mm | 83% | 2.4 m/s | 5.1 |
| 2013 | 27.4°C | 23.3°C | 19.1°C | 30.1°C | 17.4°C | 138 mm | 84% | 2.4 m/s | 4.7 |
| 2012 | 29.1°C | 24.2°C | 19.3°C | 32.8°C | 18.1°C | 83 mm | 77% | 2.8 m/s | 5.2 |
| 2011 | 28.7°C | 23.9°C | 19.1°C | 32.5°C | 17.3°C | 87 mm | 80% | 2.9 m/s | 5 |
| 2010 | 27.6°C | 23.3°C | 19.0°C | 29.7°C | 17.3°C | 108 mm | 83% | 2.2 m/s | 4.6 |
| 2009 | 27.6°C | 23.6°C | 19.6°C | 30.7°C | 17.4°C | 140 mm | 84% | 2.4 m/s | 4.5 |
| 2008 | 27.2°C | 23.0°C | 18.9°C | 29.2°C | 17.1°C | 93 mm | 85% | 2.3 m/s | 5.3 |
| 2007 | 26.4°C | 22.8°C | 19.3°C | 28.5°C | 17.2°C | 170 mm | 87% | 2.5 m/s | 4.2 |
| 2006 | 27.9°C | 23.7°C | 19.5°C | 31.1°C | 16.8°C | 134 mm | 83% | 2.6 m/s | 4.7 |
| 2005 | 27.2°C | 23.4°C | 19.6°C | 29.9°C | 18.0°C | 112 mm | 85% | 2.7 m/s | 4.7 |
| 2004 | 26.9°C | 23.1°C | 19.2°C | 30.1°C | 17.4°C | 157 mm | 84% | 1.9 m/s | 4.9 |
| 2003 | 29.6°C | 24.6°C | 19.7°C | 33.2°C | 18.2°C | 34 mm | 77% | 2.7 m/s | 5.8 |
| 2002 | 30.4°C | 24.9°C | 19.4°C | 32.7°C | 17.7°C | 49 mm | 75% | 2.5 m/s | 5.9 |
| 2001 | 28.0°C | 23.8°C | 19.6°C | 31.4°C | 18.2°C | 130 mm | 81% | 1.9 m/s | 5.3 |
| 2000 | 27.7°C | 23.7°C | 19.6°C | 30.3°C | 18.2°C | 113 mm | 84% | 1.9 m/s | 4.8 |
| 1999 | 29.3°C | 24.3°C | 19.4°C | 32.1°C | 17.6°C | 71 mm | 77% | 2.4 m/s | 5.4 |
| 1998 | 26.4°C | 22.9°C | 19.3°C | 28.6°C | 17.7°C | 160 mm | 88% | 2.4 m/s | 4.6 |
| 1997 | 27.6°C | 23.4°C | 19.3°C | 29.9°C | 17.8°C | 100 mm | 84% | 2 m/s | 4.9 |
| 1996 | 26.3°C | 22.6°C | 18.8°C | 27.6°C | 16.8°C | 146 mm | 87% | 2.5 m/s | 4.5 |
| 1995 | 27.6°C | 23.4°C | 19.3°C | 29.6°C | 17.5°C | 101 mm | 83% | 2.6 m/s | 5.1 |
| 1994 | 28.7°C | 23.7°C | 18.8°C | 32.3°C | 15.6°C | 57 mm | 79% | 2.6 m/s | 5.6 |
| 1993 | 28.0°C | 23.4°C | 18.8°C | 30.1°C | 17.3°C | 82 mm | 81% | 2.3 m/s | 5.4 |
| 1992 | 27.3°C | 23.2°C | 19.1°C | 29.8°C | 17.6°C | 117 mm | 82% | 2.3 m/s | 4.6 |
| 1991 | 28.0°C | 23.5°C | 19.1°C | 31.1°C | 17.2°C | 77 mm | 81% | 2 m/s | 5 |
| 1990 | 29.1°C | 24.1°C | 19.1°C | 31.8°C | 18.1°C | 52 mm | 77% | 2.5 m/s | 5 |
| 1989 | 27.4°C | 23.2°C | 19.0°C | 29.7°C | 16.8°C | 126 mm | 83% | 2.1 m/s | 5.1 |
| 1988 | 26.6°C | 23.0°C | 19.3°C | 28.1°C | 18.0°C | 164 mm | 87% | 2.5 m/s | 4.9 |
| 1987 | 29.7°C | 24.8°C | 19.8°C | 32.2°C | 18.1°C | 44 mm | 77% | 2.1 m/s | 5.3 |
| 1986 | 28.4°C | 23.8°C | 19.1°C | 31.6°C | 16.5°C | 152 mm | 79% | 2.3 m/s | 4.4 |
| 1985 | 28.6°C | 23.8°C | 18.9°C | 31.5°C | 17.4°C | 75 mm | 78% | 2.2 m/s | 4.6 |
| 1984 | 29.2°C | 24.1°C | 19.0°C | 32.6°C | 17.3°C | 83 mm | 76% | 2.1 m/s | 4.8 |
| 1983 ❄️ | 26.2°C | 22.4°C | 18.5°C | 28.1°C | 16.3°C | 162 mm | 86% | 2.9 m/s | — |
| 1982 | 28.5°C | 23.5°C | 18.6°C | 30.8°C | 17.1°C | 65 mm | 79% | 2.5 m/s | — |
| 1981 | 26.3°C | 22.8°C | 19.2°C | 28.6°C | 17.8°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 28.1°C with lows near 19.3°C (mean 23.7°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 0.9°C. Daytime highs moved from 27.8°C to 28.7°C and overnight lows from 18.8°C to 19.7°C over the same span.
September is one of the cooler months of the year in Chamarajanagar and a relatively wet time of year, so plan for around 28.1°C daytime highs and 19.3°C at night.
Not quite — September is the 7th coolest month in Chamarajanagar, averaging 23.7°C.
For September in Chamarajanagar, pack light layers you can adjust through the day, with typical highs of 28.1°C and lows of 19.3°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.
