October is one of the cooler months of the year in Tirunelveli, with average highs near 29°C and lows around 22.4°C (mean 25.7°C). It is a relatively wet time of year, averaging 236 mm of rainfall and 85% relative humidity across the period.
October is one of the cooler months of the year in Tirunelveli. Across 45 years of records, the warmest October in Tirunelveli was 2016 — when the month averaged 28.2°C — while the coldest was 1996 at 24.6°C. Typical October days reach 29°C with nights near 22.4°C. The long-term trend is warming, about 0.3°C per decade.
October is a relatively wet time of year in Tirunelveli, averaging 236 mm of rainfall. The wettest October on record was 2006 with 560 mm, while the driest was 1988 at 17 mm.
Relative humidity in Tirunelveli during October averages 85%. The most humid October was 1998 at 91%, and the least humid was 2016 at 71%.
October receives about 4.9 kWh/m²/day of solar energy in Tirunelveli. The sunniest Octobers were 2013 and 2016 at 5.5 kWh/m²/day, and the cloudiest was 1993 at 4.
Average wind speed in Tirunelveli during October is 2.2 m/s. The windiest October was 2016 at 3 m/s, while the calmest was 1997 at 1.4 m/s.
Ranked against the other 11 months using 1981–2025 averages.
| Metric | 1980s | 1990s | 2000s | 2010s | 2020s | Change |
|---|---|---|---|---|---|---|
| Avg Temp | 25.5°C | 25.2°C | 25.5°C | 26.4°C | 26.4°C | +0.9°C |
| Avg High | 29.1°C | 28.2°C | 28.5°C | 30.0°C | 29.7°C | +0.6°C |
| Avg Low | 21.8°C | 22.2°C | 22.4°C | 22.7°C | 23.0°C | +1.2°C |
| Avg Rain | 175 mm | 290 mm | 291 mm | 208 mm | 194 mm | +20 mm |
October temperatures in Tirunelveli have risen by about 0.9°C between 1981–1985 and 2021–2025.
October has ranged from a record low of 14.9°C (1984) to a record high of 36.2°C (2012).
Rainfall in October is a relatively wet time of year, averaging 236 mm, with a wettest year of 560 mm.
A quieter season to visit Tirunelveli
If your dates are flexible, the more temperate months of January and December tend to be the most comfortable for visiting Tirunelveli. That said, October — with days averaging 29°C and nights around 22.4°C (mean 25.7°C) and higher rainfall (236 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 | 29.8°C | 26.6°C | 23.4°C | 33.1°C | 22.1°C | 242 mm | 86% | 2 m/s | 4.6 |
| 2024 | 29.5°C | 26.4°C | 23.3°C | 32.0°C | 22.1°C | 143 mm | 86% | 2 m/s | 4.8 |
| 2023 | 29.1°C | 26.1°C | 23.1°C | 30.9°C | 22.1°C | 262 mm | 87% | 1.7 m/s | 4.7 |
| 2022 | 30.6°C | 26.7°C | 22.8°C | 33.8°C | 21.5°C | 143 mm | 81% | 2.4 m/s | 4.9 |
| 2021 | 28.6°C | 25.9°C | 23.1°C | 30.6°C | 21.5°C | 302 mm | 88% | 2.4 m/s | 4.4 |
| 2020 | 30.3°C | 26.4°C | 22.6°C | 32.8°C | 21.3°C | 73 mm | 83% | 2.9 m/s | 5.4 |
| 2019 | 28.3°C | 25.4°C | 22.6°C | 30.6°C | 21.2°C | 329 mm | 87% | 1.7 m/s | 4.3 |
| 2018 | 29.0°C | 25.8°C | 22.5°C | 32.9°C | 20.8°C | 232 mm | 85% | 1.5 m/s | 4.6 |
| 2017 | 30.3°C | 26.8°C | 23.2°C | 33.2°C | 22.1°C | 103 mm | 83% | 2.4 m/s | 4.7 |
| 2016 🔥 | 33.4°C | 28.2°C | 22.9°C | 36.2°C | 20.7°C | 61 mm | 71% | 3 m/s | 5.5 |
| 2015 | 29.9°C | 26.4°C | 22.9°C | 33.3°C | 21.2°C | 196 mm | 82% | 1.8 m/s | 4.7 |
| 2014 | 28.3°C | 25.5°C | 22.7°C | 31.4°C | 21.2°C | 348 mm | 87% | 1.6 m/s | 4.6 |
| 2013 | 30.0°C | 26.2°C | 22.3°C | 33.5°C | 19.4°C | 154 mm | 81% | 2.8 m/s | 5.5 |
| 2012 | 30.1°C | 26.6°C | 23.1°C | 36.2°C | 21.9°C | 235 mm | 81% | 2.2 m/s | 4.6 |
| 2011 | 31.7°C | 27.3°C | 23.0°C | 35.9°C | 21.5°C | 192 mm | 76% | 2.4 m/s | 5.1 |
| 2010 | 28.6°C | 25.4°C | 22.2°C | 31.4°C | 20.3°C | 229 mm | 87% | 2.9 m/s | 5.1 |
| 2009 | 31.8°C | 27.2°C | 22.6°C | 34.2°C | 21.2°C | 82 mm | 77% | 2.3 m/s | 5.4 |
| 2008 | 29.6°C | 25.9°C | 22.3°C | 33.8°C | 19.9°C | 260 mm | 84% | 1.9 m/s | 4.9 |
| 2007 | 27.9°C | 24.9°C | 22.0°C | 30.4°C | 20.4°C | 226 mm | 88% | 2.2 m/s | 4.9 |
| 2006 🌧️ | 27.7°C | 25.0°C | 22.3°C | 29.2°C | 20.4°C | 560 mm | 90% | 2.1 m/s | 4.8 |
| 2005 | 28.3°C | 25.5°C | 22.6°C | 30.8°C | 20.1°C | 225 mm | 89% | 2.3 m/s | 5.2 |
| 2004 | 27.5°C | 25.0°C | 22.6°C | 28.8°C | 21.7°C | 219 mm | 91% | 2.4 m/s | 4.8 |
| 2003 | 28.0°C | 25.4°C | 22.8°C | 31.0°C | 21.4°C | 506 mm | 89% | 2.3 m/s | 4.9 |
| 2002 | 28.4°C | 25.6°C | 22.7°C | 35.1°C | 21.6°C | 469 mm | 88% | 1.9 m/s | 4.6 |
| 2001 | 27.7°C | 25.1°C | 22.4°C | 29.4°C | 21.5°C | 212 mm | 90% | 2.4 m/s | 5.1 |
| 2000 | 28.2°C | 25.0°C | 21.7°C | 30.3°C | 17.5°C | 154 mm | 87% | 2.5 m/s | 5.4 |
| 1999 | 27.2°C | 24.8°C | 22.4°C | 29.5°C | 21.5°C | 405 mm | 90% | 2.8 m/s | 4.6 |
| 1998 | 27.3°C | 24.8°C | 22.2°C | 29.9°C | 19.6°C | 378 mm | 91% | 2.8 m/s | 5 |
| 1997 | 28.5°C | 25.5°C | 22.6°C | 29.9°C | 21.1°C | 154 mm | 88% | 1.4 m/s | 4.5 |
| 1996 ❄️ | 27.7°C | 24.6°C | 21.5°C | 29.0°C | 18.4°C | 356 mm | 89% | 2.4 m/s | 4.8 |
| 1995 | 29.2°C | 25.9°C | 22.5°C | 31.2°C | 20.9°C | 179 mm | 85% | 2.5 m/s | 4.8 |
| 1994 | 27.5°C | 24.8°C | 22.2°C | 29.8°C | 21.6°C | 363 mm | 90% | 1.7 m/s | 4.7 |
| 1993 | 28.0°C | 25.2°C | 22.4°C | 29.7°C | 20.9°C | 258 mm | 87% | 2.4 m/s | 4 |
| 1992 | 27.8°C | 24.8°C | 21.7°C | 30.0°C | 20.0°C | 316 mm | 88% | 2.3 m/s | 4.7 |
| 1991 | 28.2°C | 25.2°C | 22.2°C | 31.0°C | 21.2°C | 299 mm | 87% | 2.5 m/s | 4.6 |
| 1990 | 30.8°C | 26.8°C | 22.7°C | 34.9°C | 21.4°C | 194 mm | 79% | 2.1 m/s | 4.8 |
| 1989 | 27.8°C | 24.9°C | 22.0°C | 28.9°C | 19.9°C | 236 mm | 89% | 2.3 m/s | 5 |
| 1988 | 29.0°C | 25.5°C | 22.1°C | 30.5°C | 19.8°C | 17 mm | 86% | 2 m/s | 5.3 |
| 1987 | 27.9°C | 25.3°C | 22.6°C | 29.7°C | 21.5°C | 379 mm | 89% | 1.7 m/s | 4.5 |
| 1986 | 30.9°C | 26.5°C | 22.1°C | 33.4°C | 20.1°C | 58 mm | 78% | 2.1 m/s | 5 |
| 1985 | 28.7°C | 25.2°C | 21.6°C | 30.9°C | 18.9°C | 162 mm | 85% | 2.4 m/s | 5.2 |
| 1984 | 29.4°C | 25.0°C | 20.5°C | 31.7°C | 14.9°C | 191 mm | 82% | 2.6 m/s | 4.9 |
| 1983 | 30.7°C | 26.4°C | 22.1°C | 33.3°C | 20.4°C | 61 mm | 79% | 2.3 m/s | — |
| 1982 | 29.4°C | 25.6°C | 21.8°C | 31.9°C | 20.8°C | 158 mm | 82% | 1.5 m/s | — |
| 1981 | 27.9°C | 24.8°C | 21.8°C | 29.2°C | 19.9°C | 308 mm | 89% | 1.8 m/s | — |
Actual recorded October data for each year, 1981–2025 — sourced from NASA POWER.
The average high in October is around 29°C with lows near 22.4°C (mean 25.7°C), based on 45 years of NASA POWER data.
October averages 236 mm of rainfall in Tirunelveli, a relatively wet time of year. The wettest on record was 560 mm in 2006.
The hottest October reached 36.2°C in 2012. The coldest dipped to 14.9°C in 1984.
Comparing the earliest years on record (1981–1985) with the most recent (2021–2025), average October temperatures have risen by about 0.9°C. Daytime highs moved from 29.2°C to 29.5°C and overnight lows from 21.6°C to 23.1°C over the same span.
October is one of the cooler months of the year in Tirunelveli and a relatively wet time of year, so plan for around 29°C daytime highs and 22.4°C at night.
Not quite — October is the 6th coolest month in Tirunelveli, averaging 25.7°C.
For October in Tirunelveli, pack light layers you can adjust through the day, with typical highs of 29°C and lows of 22.4°C. Bring an umbrella or light rain jacket too.
Relative humidity in October averages 85% — quite humid.
Average wind speed in October is 2.2 m/s. The windiest October on record averaged 3 m/s (2016).
The wettest October on record was 2006 with 560 mm. On average, October sees 236 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 Tirunelveli behaves each October, 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 October specifically, along with year-by-year records and how the month has changed over the decades.
