September is close to Kanyakumari's year-round average, with average highs near 29.4°C and lows around 25.1°C (mean 27.3°C). It is a relatively wet time of year, averaging 141 mm of rainfall and 85% relative humidity across the period.
September is close to Kanyakumari's year-round average. Across 45 years of records, the warmest September in Kanyakumari was 2024 — when the month averaged 29.4°C — while the coldest was 1992 at 26.1°C. Typical September days reach 29.4°C with nights near 25.1°C. The long-term trend is warming, about 0.3°C per decade.
Ranked against the other 11 months using 1981–2025 averages.
| Metric | 1980s | 1990s | 2000s | 2010s | 2020s | Change |
|---|---|---|---|---|---|---|
| Avg Temp | 26.7°C | 27.0°C | 27.2°C | 27.5°C | 27.9°C | +1.2°C |
| Avg High | 28.8°C | 29.1°C | 29.3°C | 29.9°C | 30.3°C | +1.5°C |
| Avg Low | 24.6°C | 24.9°C | 25.2°C | 25.2°C | 25.5°C | +0.9°C |
| Avg Rain | 179 mm | 123 mm | 192 mm | 86 mm | 120 mm | -59 mm |
September temperatures in Kanyakumari have risen by about 1.5°C between 1981–1985 and 2021–2025.
September has ranged from a record low of 23.7°C (1984) to a record high of 32.4°C (2024).
Rainfall in September is a relatively wet time of year, averaging 141 mm, with a wettest year of 500 mm.
Daytime highs and overnight lows have shifted differently — highs rose about 0.4°C per decade while lows rose 0.2°C per decade, widening the gap between day and night.
A good time to visit Kanyakumari
September is a good time to visit Kanyakumari, with days averaging 29.4°C and nights around 25.1°C (mean 27.3°C, close to Kanyakumari's yearly average) and higher rainfall. January and February are marginally more temperate, but September still suits most travellers.
| Year | High | Low | Avg | Rainfall | Humidity | Wind | Solar |
|---|---|---|---|---|---|---|---|
| 2025 | 29.7°C | 25.4°C | 27.5°C | 84 mm | 86% | 4.6 m/s | 5.5 |
| 2024 🔥 | 32.4°C | 26.4°C | 29.4°C | 59 mm | 84% | 5.1 m/s | 5.7 |
| 2023 | 29.9°C | 25.8°C | 27.8°C | 170 mm | 81% | 4.8 m/s | 4.9 |
| 2022 | 30.5°C | 24.7°C | 27.6°C | 44 mm | 86% | 4.5 m/s | 5.9 |
| 2021 | 30.2°C | 25.8°C | 28.0°C | 187 mm | 86% | 5.1 m/s | 5.4 |
| 2020 | 28.8°C | 25.1°C | 27.0°C | 178 mm | 87% | 4.9 m/s | 4.6 |
| 2019 | 29.7°C | 25.7°C | 27.7°C | 157 mm | 85% | 4.2 m/s | 5.2 |
| 2018 | 29.9°C | 24.2°C | 27.0°C | 39 mm | 85% | 3.9 m/s | 6 |
| 2017 | 28.8°C | 25.3°C | 27.0°C | 168 mm | 87% | 4.7 m/s | 5.2 |
| 2016 | 29.5°C | 24.2°C | 26.8°C | 9 mm | 84% | 5.2 m/s | 6 |
| 2015 | 30.7°C | 25.5°C | 28.1°C | 161 mm | 84% | 4.6 m/s | 5.1 |
| 2014 | 29.8°C | 25.7°C | 27.7°C | 102 mm | 84% | 4.8 m/s | 5.5 |
| 2013 | 29.4°C | 25.2°C | 27.3°C | 74 mm | 84% | 5.4 m/s | 5.2 |
| 2012 | 30.2°C | 26.0°C | 28.1°C | 29 mm | 80% | 5.2 m/s | 5.9 |
| 2011 | 31.1°C | 25.5°C | 28.3°C | 46 mm | 81% | 5.4 m/s | 5.6 |
| 2010 | 30.2°C | 24.6°C | 27.4°C | 77 mm | 84% | 4.4 m/s | 5.5 |
| 2009 | 29.3°C | 25.4°C | 27.3°C | 99 mm | 86% | 5.2 m/s | 5.4 |
| 2008 | 29.6°C | 25.4°C | 27.5°C | 108 mm | 84% | 4.6 m/s | 6 |
| 2007 | 28.6°C | 25.4°C | 27.0°C | 171 mm | 87% | 5.2 m/s | 5.1 |
| 2006 | 29.0°C | 25.5°C | 27.2°C | 395 mm | 87% | 4.9 m/s | 5.2 |
| 2005 | 28.8°C | 24.9°C | 26.8°C | 193 mm | 88% | 5.4 m/s | 5.4 |
| 2004 | 28.9°C | 24.9°C | 26.9°C | 326 mm | 87% | 4.7 m/s | 5.4 |
| 2003 | 30.4°C | 25.1°C | 27.7°C | 13 mm | 84% | 4.7 m/s | 6.2 |
| 2002 | 30.3°C | 25.9°C | 28.1°C | 22 mm | 79% | 4.9 m/s | 6.3 |
| 2001 | 28.6°C | 24.6°C | 26.6°C | 458 mm | 88% | 4.9 m/s | 5.6 |
| 2000 | 29.1°C | 25.0°C | 27.1°C | 130 mm | 87% | 4.8 m/s | 5.6 |
| 1999 | 29.3°C | 25.2°C | 27.3°C | 38 mm | 84% | 4.5 m/s | 6 |
| 1998 | 28.4°C | 24.9°C | 26.6°C | 361 mm | 89% | 5.5 m/s | 5.5 |
| 1997 | 28.7°C | 25.3°C | 27.0°C | 371 mm | 87% | 4.8 m/s | 5.2 |
| 1996 | 28.2°C | 24.8°C | 26.5°C | 141 mm | 88% | 5.3 m/s | 4.5 |
| 1995 | 29.8°C | 24.9°C | 27.3°C | 54 mm | 84% | 5.4 m/s | 5.4 |
| 1994 | 28.8°C | 24.9°C | 26.8°C | 91 mm | 86% | 4.4 m/s | 5.4 |
| 1993 | 29.2°C | 24.6°C | 26.9°C | 39 mm | 84% | 5 m/s | 5.5 |
| 1992 ❄️ | 28.3°C | 24.0°C | 26.1°C | 101 mm | 88% | 4.9 m/s | 5.2 |
| 1991 | 29.6°C | 25.3°C | 27.5°C | 4 mm | 84% | 5 m/s | 5.9 |
| 1990 | 30.5°C | 25.2°C | 27.8°C | 31 mm | 83% | 5.1 m/s | 5.6 |
| 1989 | 28.4°C | 24.9°C | 26.6°C | 280 mm | 86% | 5.2 m/s | 5.1 |
| 1988 | 28.8°C | 25.0°C | 26.9°C | 355 mm | 87% | 5.4 m/s | 4.6 |
| 1987 | 29.8°C | 25.5°C | 27.7°C | 149 mm | 84% | 4.8 m/s | 5.4 |
| 1986 | 28.0°C | 24.4°C | 26.2°C | 56 mm | 87% | 4.7 m/s | 5.5 |
| 1985 | 29.2°C | 24.4°C | 26.8°C | 77 mm | 84% | 4.9 m/s | 5.4 |
| 1984 | 29.5°C | 23.7°C | 26.6°C | 40 mm | 83% | 4.6 m/s | 5.6 |
| 1983 | 28.6°C | 24.4°C | 26.5°C | 136 mm | 84% | 4.8 m/s | — |
| 1982 | 28.4°C | 24.3°C | 26.3°C | 20 mm | 86% | 4.5 m/s | — |
| 1981 🌧️ | 28.2°C | 25.0°C | 26.6°C | 500 mm | 88% | 4.9 m/s | — |
Actual recorded September data for each year, 1981–2025 — sourced from NASA POWER.
The average high in September is around 29.4°C with lows near 25.1°C (mean 27.3°C), based on 45 years of NASA POWER data.
September averages 141 mm of rainfall in Kanyakumari, a relatively wet time of year. The wettest on record was 500 mm in 1981.
The hottest September reached 32.4°C in 2024. The coldest dipped to 23.7°C in 1984.
Comparing the earliest years on record (1981–1985) with the most recent (2021–2025), average September temperatures have risen by about 1.5°C. Daytime highs moved from 28.8°C to 30.5°C and overnight lows from 24.4°C to 25.6°C over the same span.
September is close to Kanyakumari's year-round average and a relatively wet time of year, so plan for around 29.4°C daytime highs and 25.1°C at night.
Not quite — September is the 5th coolest month in Kanyakumari, averaging 27.3°C.
For September in Kanyakumari, pack light layers you can adjust through the day, with typical highs of 29.4°C and lows of 25.1°C. Bring an umbrella or light rain jacket too.
Relative humidity in September averages 85% — quite humid.
Average wind speed in September is 4.9 m/s. The windiest September on record averaged 5.5 m/s (1998).
The wettest September on record was 1981 with 500 mm. On average, September sees 141 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 Kanyakumari 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.
