September is one of the warmer months of the year in Kallakurichi, with average highs near 36°C and lows around 21.2°C (mean 28.6°C). It is a relatively wet time of year, averaging 126 mm of rainfall and 73% relative humidity across the period.
September is one of the warmer months of the year in Kallakurichi. Across 45 years of records, the warmest September in Kallakurichi was 2002 — when the month averaged 30.6°C — while the coldest was 1983 at 25.8°C. Typical September days reach 36°C with nights near 21.2°C. The long-term September temperature trend is broadly flat.
Ranked against the other 11 months using 1981–2025 averages.
| Metric | 1980s | 1990s | 2000s | 2010s | 2020s | Change |
|---|---|---|---|---|---|---|
| Avg Temp | 28.3°C | 28.8°C | 28.9°C | 28.6°C | 28.3°C | 0°C |
| Avg High | 35.9°C | 36.3°C | 36.3°C | 36.0°C | 35.1°C | -0.8°C |
| Avg Low | 20.7°C | 21.2°C | 21.5°C | 21.2°C | 21.5°C | +0.8°C |
| Avg Rain | 154 mm | 123 mm | 108 mm | 122 mm | 122 mm | -32 mm |
September temperatures in Kallakurichi have risen by about 0.6°C between 1981–1985 and 2021–2025.
September has ranged from a record low of 18.9°C (1983) to a record high of 39.1°C (2002).
Rainfall in September is a relatively wet time of year, averaging 126 mm, with a wettest year of 261 mm.
Daytime highs and overnight lows have shifted differently — highs fell about 0.1°C per decade while lows rose 0.1°C per decade, narrowing the gap between day and night.
A quieter season to visit Kallakurichi
If your dates are flexible, the more temperate months of January and December tend to be the most comfortable for visiting Kallakurichi. That said, September — with days averaging 36°C and nights around 21.2°C (mean 28.6°C) and higher rainfall (126 mm) — can still be rewarding for travellers who don't mind the warmth, and often means fewer crowds.
| Year | High | Low | Avg | Rainfall | Humidity | Wind | Solar |
|---|---|---|---|---|---|---|---|
| 2025 | 36.8°C | 22.1°C | 29.5°C | 152 mm | 73% | 1.9 m/s | 5.3 |
| 2024 | 37.2°C | 22.2°C | 29.7°C | 31 mm | 70% | 2.5 m/s | 5.8 |
| 2023 | 35.9°C | 21.7°C | 28.8°C | 129 mm | 75% | 2.6 m/s | 5.6 |
| 2022 | 33.8°C | 21.3°C | 27.5°C | 103 mm | 78% | 1.9 m/s | 5.4 |
| 2021 | 33.5°C | 20.8°C | 27.1°C | 159 mm | 79% | 2.1 m/s | 5.3 |
| 2020 | 33.2°C | 20.6°C | 26.9°C | 159 mm | 80% | 2.3 m/s | 4.8 |
| 2019 | 35.4°C | 21.3°C | 28.4°C | 203 mm | 80% | 2.3 m/s | 5.1 |
| 2018 | 38.8°C | 21.0°C | 29.9°C | 108 mm | 66% | 1.8 m/s | 5.6 |
| 2017 | 33.6°C | 20.6°C | 27.1°C | 164 mm | 81% | 1.8 m/s | 5.2 |
| 2016 | 37.6°C | 21.8°C | 29.7°C | 27 mm | 63% | 2.2 m/s | 5.4 |
| 2015 | 37.5°C | 21.8°C | 29.6°C | 84 mm | 68% | 2.1 m/s | 5.6 |
| 2014 | 37.3°C | 21.5°C | 29.4°C | 100 mm | 68% | 2.2 m/s | 5.5 |
| 2013 | 33.8°C | 20.1°C | 27.0°C | 167 mm | 79% | 2.2 m/s | 5.6 |
| 2012 | 36.3°C | 21.3°C | 28.8°C | 134 mm | 71% | 2.2 m/s | 5.6 |
| 2011 | 35.9°C | 21.4°C | 28.6°C | 133 mm | 70% | 2.4 m/s | 5.9 |
| 2010 | 33.7°C | 21.0°C | 27.3°C | 97 mm | 77% | 2 m/s | 5.1 |
| 2009 | 37.4°C | 21.7°C | 29.6°C | 94 mm | 69% | 2.5 m/s | 5.7 |
| 2008 | 35.4°C | 20.4°C | 27.9°C | 43 mm | 75% | 2.1 m/s | 5.6 |
| 2007 | 34.0°C | 20.6°C | 27.3°C | 77 mm | 76% | 2.4 m/s | 5.3 |
| 2006 | 35.1°C | 21.3°C | 28.2°C | 77 mm | 75% | 2.5 m/s | 5.4 |
| 2005 | 36.6°C | 21.4°C | 29.0°C | 105 mm | 73% | 2.4 m/s | 5.5 |
| 2004 | 35.9°C | 21.3°C | 28.6°C | 257 mm | 79% | 1.8 m/s | 4.9 |
| 2003 | 37.5°C | 22.1°C | 29.8°C | 89 mm | 68% | 2.3 m/s | 6.1 |
| 2002 🔥 | 39.1°C | 22.1°C | 30.6°C | 61 mm | 60% | 2.4 m/s | 6.1 |
| 2001 | 36.0°C | 22.0°C | 29.0°C | 134 mm | 74% | 1.9 m/s | 5.5 |
| 2000 | 36.0°C | 21.8°C | 28.9°C | 149 mm | 76% | 1.8 m/s | 5.4 |
| 1999 | 37.9°C | 21.8°C | 29.9°C | 71 mm | 60% | 2.3 m/s | 5.9 |
| 1998 | 34.1°C | 21.2°C | 27.6°C | 139 mm | 79% | 2.4 m/s | 5.3 |
| 1997 | 37.7°C | 21.2°C | 29.5°C | 113 mm | 72% | 2.1 m/s | 5.4 |
| 1996 | 33.5°C | 20.9°C | 27.2°C | 147 mm | 81% | 2.2 m/s | 4.8 |
| 1995 | 35.8°C | 21.7°C | 28.8°C | 93 mm | 70% | 2.4 m/s | 5.3 |
| 1994 | 38.5°C | 19.9°C | 29.2°C | 84 mm | 63% | 2.5 m/s | 5.6 |
| 1993 | 35.9°C | 21.6°C | 28.8°C | 83 mm | 71% | 2 m/s | 5.3 |
| 1992 | 36.2°C | 21.4°C | 28.8°C | 188 mm | 71% | 2.1 m/s | 5.1 |
| 1991 | 35.5°C | 21.2°C | 28.3°C | 165 mm | 73% | 1.8 m/s | 5.6 |
| 1990 | 38.1°C | 21.3°C | 29.7°C | 145 mm | 69% | 2 m/s | 5.2 |
| 1989 | 37.2°C | 20.9°C | 29.0°C | 121 mm | 71% | 2.1 m/s | 5 |
| 1988 | 33.3°C | 20.3°C | 26.8°C | 182 mm | 81% | 2.3 m/s | 5.2 |
| 1987 | 38.1°C | 22.4°C | 30.3°C | 90 mm | 70% | 1.9 m/s | 5.5 |
| 1986 | 37.0°C | 21.5°C | 29.3°C | 158 mm | 70% | 1.9 m/s | 5.7 |
| 1985 | 37.0°C | 20.6°C | 28.8°C | 146 mm | 72% | 2 m/s | 5.3 |
| 1984 | 36.7°C | 20.0°C | 28.4°C | 128 mm | 69% | 2 m/s | 5.4 |
| 1983 ❄️ 🌧️ | 32.7°C | 18.9°C | 25.8°C | 261 mm | 82% | 2.6 m/s | — |
| 1982 | 38.9°C | 21.4°C | 30.1°C | 80 mm | 63% | 2.3 m/s | — |
| 1981 | 32.1°C | 20.7°C | 26.4°C | 221 mm | 84% | 2 m/s | — |
Actual recorded September data for each year, 1981–2025 — sourced from NASA POWER.
The average high in September is around 36°C with lows near 21.2°C (mean 28.6°C), based on 45 years of NASA POWER data.
September averages 126 mm of rainfall in Kallakurichi, a relatively wet time of year. The wettest on record was 261 mm in 1983.
The hottest September reached 39.1°C in 2002. The coldest dipped to 18.9°C in 1983.
Comparing the earliest years on record (1981–1985) with the most recent (2021–2025), average September temperatures have risen by about 0.6°C. Daytime highs moved from 35.5°C to 35.4°C and overnight lows from 20.3°C to 21.6°C over the same span.
September is one of the warmer months of the year in Kallakurichi and a relatively wet time of year, so plan for around 36°C daytime highs and 21.2°C at night.
Not quite — September is the 6th coolest month in Kallakurichi, averaging 28.6°C.
For September in Kallakurichi, pack light, breathable clothing and sun protection, with typical highs of 36°C and lows of 21.2°C. Bring an umbrella or light rain jacket too.
Relative humidity in September averages 73% — moderately humid.
Average wind speed in September is 2.2 m/s. The windiest September on record averaged 2.6 m/s (1983).
The wettest September on record was 1983 with 261 mm. On average, September sees 126 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 Kallakurichi 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.
