September is close to Kolar's year-round average, with average highs near 28.4°C and lows around 19.6°C (mean 24°C). It is a relatively wet time of year, averaging 150 mm of rainfall and 80% relative humidity across the period.
September is close to Kolar's year-round average. Across 45 years of records, the warmest September in Kolar was 2002 — when the month averaged 25.5°C — while the coldest was 1983 at 22.9°C. Typical September days reach 28.4°C with nights near 19.6°C. The long-term September temperature trend is broadly flat.
September is a relatively wet time of year in Kolar, averaging 150 mm of rainfall. The wettest September on record was 2017 with 312 mm, while the driest was 2016 at 39 mm.
Relative humidity in Kolar during September averages 80%. The most humid September was 2017 at 86%, and the least humid was 2002 at 70%.
September receives about 5.2 kWh/m²/day of solar energy in Kolar. The sunniest September was 2002 at 5.8 kWh/m²/day, and the cloudiest was 2020 at 4.7.
Average wind speed in Kolar during September is 2.8 m/s. The windiest Septembers were 1983, 2011 and 2024 at 3.4 m/s, while the calmest was 2001 at 2.1 m/s.
Ranked against the other 11 months using 1981–2025 averages.
| Metric | 1980s | 1990s | 2000s | 2010s | 2020s | Change |
|---|---|---|---|---|---|---|
| Avg Temp | 23.8°C | 23.9°C | 24.1°C | 24.3°C | 24.0°C | +0.2°C |
| Avg High | 28.3°C | 28.3°C | 28.4°C | 29.0°C | 28.1°C | -0.2°C |
| Avg Low | 19.3°C | 19.5°C | 19.7°C | 19.6°C | 19.8°C | +0.5°C |
| Avg Rain | 157 mm | 145 mm | 154 mm | 144 mm | 153 mm | -4 mm |
September temperatures in Kolar have risen by about 0.5°C between 1981–1985 and 2021–2025.
September has ranged from a record low of 16°C (1994) to a record high of 34.4°C (2002).
Rainfall in September is a relatively wet time of year, averaging 150 mm, with a wettest year of 312 mm.
A quieter season to visit Kolar
If your dates are flexible, the more temperate months of January and December tend to be the most comfortable for visiting Kolar. That said, September — with days averaging 28.4°C and nights around 19.6°C (mean 24°C) and higher rainfall (150 mm) — can still be rewarding for travellers who don't mind the cooler conditions, and often means fewer crowds.
| Year | Avg High | Avg Temp | Avg Low | Hottest Day | Coldest Day | Rainfall | Humidity | Wind | Solar |
|---|---|---|---|---|---|---|---|---|---|
| 2025 | 27.9°C | 24.0°C | 20.0°C | 30.3°C | 18.3°C | 158 mm | 82% | 2.7 m/s | 4.9 |
| 2024 | 30.1°C | 25.1°C | 20.1°C | 32.0°C | 18.4°C | 51 mm | 77% | 3.4 m/s | 5.1 |
| 2023 | 29.0°C | 24.6°C | 20.2°C | 32.2°C | 18.7°C | 164 mm | 80% | 3.1 m/s | 5.1 |
| 2022 | 27.0°C | 23.2°C | 19.4°C | 29.2°C | 17.5°C | 193 mm | 86% | 2.6 m/s | 5.1 |
| 2021 | 28.0°C | 23.9°C | 19.7°C | 30.1°C | 17.9°C | 139 mm | 82% | 3 m/s | 5.2 |
| 2020 | 26.8°C | 23.1°C | 19.4°C | 28.7°C | 16.7°C | 211 mm | 86% | 3.1 m/s | 4.7 |
| 2019 | 28.2°C | 24.1°C | 20.1°C | 31.0°C | 18.6°C | 175 mm | 81% | 3.1 m/s | 4.9 |
| 2018 | 30.3°C | 25.0°C | 19.7°C | 33.0°C | 17.5°C | 136 mm | 74% | 2.2 m/s | 5.6 |
| 2017 🌧️ | 27.1°C | 23.5°C | 19.9°C | 28.7°C | 17.8°C | 312 mm | 86% | 2.2 m/s | 5.1 |
| 2016 | 30.0°C | 24.6°C | 19.2°C | 32.2°C | 18.1°C | 39 mm | 74% | 3.3 m/s | 4.8 |
| 2015 | 30.6°C | 25.4°C | 20.2°C | 34.3°C | 18.4°C | 108 mm | 73% | 2.5 m/s | 5.3 |
| 2014 | 29.6°C | 24.6°C | 19.6°C | 33.2°C | 18.3°C | 135 mm | 77% | 3.2 m/s | 5.4 |
| 2013 | 27.1°C | 23.2°C | 19.4°C | 28.9°C | 17.6°C | 234 mm | 85% | 2.8 m/s | 5.2 |
| 2012 | 29.9°C | 24.7°C | 19.6°C | 33.0°C | 18.2°C | 66 mm | 74% | 3 m/s | 5.5 |
| 2011 | 29.4°C | 24.4°C | 19.3°C | 31.4°C | 17.3°C | 112 mm | 76% | 3.4 m/s | 5.7 |
| 2010 | 27.8°C | 23.6°C | 19.4°C | 29.8°C | 18.0°C | 123 mm | 83% | 2.8 m/s | 5.2 |
| 2009 | 28.2°C | 24.1°C | 20.0°C | 31.6°C | 18.2°C | 259 mm | 81% | 2.9 m/s | 5.2 |
| 2008 | 27.2°C | 23.1°C | 19.1°C | 29.3°C | 16.8°C | 99 mm | 84% | 2.6 m/s | 5.5 |
| 2007 | 27.1°C | 23.3°C | 19.5°C | 28.7°C | 17.1°C | 182 mm | 86% | 3.1 m/s | 5.4 |
| 2006 | 29.7°C | 24.8°C | 19.9°C | 33.2°C | 18.3°C | 76 mm | 75% | 3.2 m/s | 5.3 |
| 2005 | 27.7°C | 23.8°C | 19.9°C | 29.6°C | 18.7°C | 152 mm | 84% | 3 m/s | 5.2 |
| 2004 | 26.8°C | 23.2°C | 19.6°C | 30.9°C | 17.5°C | 233 mm | 85% | 2.3 m/s | 5 |
| 2003 | 29.8°C | 24.8°C | 19.8°C | 32.3°C | 18.7°C | 74 mm | 75% | 3.2 m/s | 5.6 |
| 2002 🔥 | 31.2°C | 25.5°C | 19.8°C | 34.4°C | 17.5°C | 87 mm | 70% | 2.8 m/s | 5.8 |
| 2001 | 28.0°C | 24.0°C | 19.9°C | 32.4°C | 18.4°C | 207 mm | 81% | 2.1 m/s | 5.3 |
| 2000 | 28.0°C | 23.9°C | 19.8°C | 30.6°C | 19.0°C | 175 mm | 82% | 2.4 m/s | 5.6 |
| 1999 | 30.0°C | 24.7°C | 19.4°C | 33.0°C | 18.7°C | 153 mm | 74% | 3 m/s | 5.5 |
| 1998 | 26.9°C | 23.3°C | 19.7°C | 28.3°C | 18.4°C | 164 mm | 86% | 2.9 m/s | 5.1 |
| 1997 | 28.1°C | 24.0°C | 19.9°C | 32.1°C | 18.0°C | 176 mm | 81% | 2.3 m/s | 4.9 |
| 1996 | 26.6°C | 23.1°C | 19.5°C | 28.7°C | 17.9°C | 211 mm | 86% | 2.6 m/s | 4.8 |
| 1995 | 27.7°C | 23.6°C | 19.5°C | 29.8°C | 18.4°C | 151 mm | 82% | 3.1 m/s | 5 |
| 1994 | 30.5°C | 24.9°C | 19.3°C | 33.2°C | 16.0°C | 56 mm | 71% | 3.2 m/s | 5.2 |
| 1993 | 27.4°C | 23.2°C | 19.0°C | 29.5°C | 17.4°C | 157 mm | 81% | 2.9 m/s | 5.2 |
| 1992 | 28.7°C | 24.1°C | 19.5°C | 31.9°C | 18.6°C | 120 mm | 76% | 2.7 m/s | 4.8 |
| 1991 | 28.0°C | 23.7°C | 19.5°C | 30.8°C | 17.6°C | 153 mm | 80% | 2.3 m/s | 5.1 |
| 1990 | 29.2°C | 24.3°C | 19.5°C | 32.1°C | 18.7°C | 113 mm | 75% | 2.9 m/s | 5 |
| 1989 | 27.4°C | 23.3°C | 19.2°C | 31.0°C | 17.5°C | 184 mm | 81% | 2.5 m/s | 5 |
| 1988 | 26.7°C | 23.1°C | 19.4°C | 29.1°C | 17.6°C | 217 mm | 86% | 2.9 m/s | 4.9 |
| 1987 | 29.5°C | 24.8°C | 20.0°C | 32.7°C | 18.4°C | 90 mm | 76% | 2.4 m/s | 5.1 |
| 1986 | 28.9°C | 24.3°C | 19.6°C | 33.1°C | 17.3°C | 227 mm | 76% | 2.3 m/s | 5.4 |
| 1985 | 28.9°C | 24.0°C | 19.1°C | 32.0°C | 17.4°C | 89 mm | 76% | 2.6 m/s | 5.2 |
| 1984 | 30.2°C | 24.7°C | 19.2°C | 32.8°C | 17.3°C | 96 mm | 71% | 2.7 m/s | 5.1 |
| 1983 ❄️ | 26.9°C | 22.9°C | 19.0°C | 28.9°C | 16.9°C | 184 mm | 84% | 3.4 m/s | — |
| 1982 | 29.3°C | 24.1°C | 19.0°C | 33.1°C | 17.3°C | 113 mm | 74% | 3 m/s | — |
| 1981 | 26.6°C | 23.0°C | 19.5°C | 28.7°C | 18.2°C | 214 mm | 86% | 2.5 m/s | — |
Actual recorded September data for each year, 1981–2025 — sourced from NASA POWER.
The average high in September is around 28.4°C with lows near 19.6°C (mean 24°C), based on 45 years of NASA POWER data.
September averages 150 mm of rainfall in Kolar, a relatively wet time of year. The wettest on record was 312 mm in 2017.
The hottest September reached 34.4°C in 2002. The coldest dipped to 16°C in 1994.
Comparing the earliest years on record (1981–1985) with the most recent (2021–2025), average September temperatures have risen by about 0.5°C. Daytime highs moved from 28.4°C to 28.4°C and overnight lows from 19.2°C to 19.9°C over the same span.
September is close to Kolar's year-round average and a relatively wet time of year, so plan for around 28.4°C daytime highs and 19.6°C at night.
Not quite — September is the 6th coolest month in Kolar, averaging 24°C.
For September in Kolar, pack light layers you can adjust through the day, with typical highs of 28.4°C and lows of 19.6°C. Bring an umbrella or light rain jacket too.
Relative humidity in September averages 80% — quite humid.
Average wind speed in September is 2.8 m/s. The windiest September on record averaged 3.4 m/s (1983).
The wettest September on record was 2017 with 312 mm. On average, September sees 150 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 Kolar 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.
