October is one of the cooler months of the year in Tiruchirappalli, with average highs near 34.9°C and lows around 20.8°C (mean 27.9°C). It is a relatively wet time of year, averaging 152 mm of rainfall and 79% relative humidity across the period.
October is one of the cooler months of the year in Tiruchirappalli. Across 45 years of records, the warmest October in Tiruchirappalli was 2016 — when the month averaged 30.7°C — while the coldest was 1984 at 24.6°C. Typical October days reach 34.9°C with nights near 20.8°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 | 27.2°C | 27.7°C | 28.0°C | 28.3°C | 28.2°C | +1°C |
| Avg High | 34.2°C | 34.4°C | 35.4°C | 35.3°C | 35.2°C | +1°C |
| Avg Low | 20.2°C | 20.9°C | 20.5°C | 21.3°C | 21.3°C | +1.1°C |
| Avg Rain | 121 mm | 143 mm | 177 mm | 154 mm | 168 mm | +48 mm |
October temperatures in Tiruchirappalli have risen by about 1.7°C between 1981–1985 and 2021–2025.
October has ranged from a record low of 16.2°C (2000) to a record high of 39°C (2016).
Rainfall in October is a relatively wet time of year, averaging 152 mm, with a wettest year of 323 mm.
A good time to visit Tiruchirappalli
October is a good time to visit Tiruchirappalli, with days averaging 34.9°C and nights around 20.8°C (mean 27.9°C, close to Tiruchirappalli's yearly average) and higher rainfall. January and December are marginally more temperate, but October still suits most travellers.
| Year | High | Low | Avg | Rainfall | Humidity | Wind | Solar |
|---|---|---|---|---|---|---|---|
| 2025 | 36.4°C | 22.1°C | 29.2°C | 188 mm | 81% | 1.7 m/s | 4.7 |
| 2024 | 36.0°C | 21.2°C | 28.6°C | 262 mm | 82% | 1.4 m/s | 4.9 |
| 2023 | 37.3°C | 22.2°C | 29.8°C | 101 mm | 74% | 1.7 m/s | 5.1 |
| 2022 | 34.2°C | 19.2°C | 26.7°C | 150 mm | 81% | 1.6 m/s | 4.7 |
| 2021 | 32.4°C | 21.9°C | 27.2°C | 216 mm | 86% | 1.6 m/s | 4.7 |
| 2020 | 34.6°C | 21.2°C | 27.9°C | 93 mm | 79% | 2 m/s | 5.2 |
| 2019 | 31.8°C | 22.0°C | 26.9°C | 191 mm | 86% | 1.5 m/s | 5 |
| 2018 | 35.4°C | 19.4°C | 27.4°C | 113 mm | 78% | 1.9 m/s | 4.6 |
| 2017 | 33.3°C | 22.2°C | 27.8°C | 106 mm | 79% | 1.8 m/s | 5 |
| 2016 🔥 | 39.0°C | 22.5°C | 30.7°C | 60 mm | 64% | 1.5 m/s | 5.2 |
| 2015 | 34.6°C | 20.5°C | 27.5°C | 152 mm | 78% | 1.7 m/s | 5.3 |
| 2014 | 36.0°C | 21.1°C | 28.5°C | 199 mm | 78% | 1.7 m/s | 4.7 |
| 2013 | 36.1°C | 21.5°C | 28.8°C | 113 mm | 76% | 1.7 m/s | 5.5 |
| 2012 | 37.1°C | 21.4°C | 29.2°C | 269 mm | 81% | 2 m/s | 4.6 |
| 2011 | 33.6°C | 21.5°C | 27.6°C | 203 mm | 82% | 1.5 m/s | 5.1 |
| 2010 | 35.6°C | 21.1°C | 28.4°C | 130 mm | 77% | 1.9 m/s | 5.4 |
| 2009 | 38.2°C | 21.6°C | 29.9°C | 59 mm | 64% | 2.3 m/s | 5.5 |
| 2008 | 36.7°C | 17.3°C | 27.0°C | 173 mm | 76% | 1.7 m/s | 5 |
| 2007 | 36.5°C | 21.8°C | 29.2°C | 197 mm | 76% | 1.9 m/s | 4.8 |
| 2006 | 36.7°C | 21.8°C | 29.3°C | 187 mm | 79% | 2.1 m/s | 4.9 |
| 2005 🌧️ | 33.9°C | 22.1°C | 28.0°C | 323 mm | 82% | 1.5 m/s | 5.2 |
| 2004 | 32.0°C | 19.8°C | 25.9°C | 215 mm | 85% | 2 m/s | 4.9 |
| 2003 | 35.8°C | 21.2°C | 28.5°C | 177 mm | 82% | 1.7 m/s | 5.1 |
| 2002 | 37.1°C | 21.7°C | 29.4°C | 180 mm | 77% | 1.8 m/s | 4.8 |
| 2001 | 34.1°C | 21.4°C | 27.7°C | 120 mm | 79% | 1.9 m/s | 4.8 |
| 2000 | 33.3°C | 16.2°C | 24.7°C | 144 mm | 79% | 1.6 m/s | 5.5 |
| 1999 | 32.9°C | 21.1°C | 27.0°C | 244 mm | 84% | 1.4 m/s | 4.8 |
| 1998 | 33.4°C | 20.5°C | 27.0°C | 77 mm | 80% | 1.9 m/s | 5.1 |
| 1997 | 36.0°C | 21.4°C | 28.7°C | 165 mm | 78% | 1.7 m/s | 4.6 |
| 1996 | 34.6°C | 19.8°C | 27.2°C | 72 mm | 78% | 1.9 m/s | 4.8 |
| 1995 | 35.7°C | 21.3°C | 28.5°C | 96 mm | 76% | 2 m/s | 4.8 |
| 1994 | 33.1°C | 21.3°C | 27.2°C | 193 mm | 83% | 1.7 m/s | 4.9 |
| 1993 | 34.7°C | 20.6°C | 27.6°C | 186 mm | 81% | 1.8 m/s | 4.3 |
| 1992 | 32.5°C | 20.0°C | 26.3°C | 83 mm | 82% | 1.6 m/s | 4.8 |
| 1991 | 34.0°C | 21.3°C | 27.7°C | 172 mm | 80% | 2 m/s | 4.6 |
| 1990 | 36.8°C | 22.0°C | 29.4°C | 145 mm | 75% | 2.3 m/s | 4.6 |
| 1989 | 35.4°C | 21.6°C | 28.5°C | 91 mm | 75% | 1.4 m/s | 5.2 |
| 1988 | 35.4°C | 20.6°C | 28.0°C | 50 mm | 72% | 1.7 m/s | 5.5 |
| 1987 | 34.8°C | 22.2°C | 28.5°C | 100 mm | 79% | 1.7 m/s | 4.5 |
| 1986 | 33.8°C | 20.1°C | 27.0°C | 99 mm | 79% | 1.7 m/s | 5.1 |
| 1985 | 34.9°C | 19.0°C | 27.0°C | 62 mm | 75% | 2.1 m/s | 5.3 |
| 1984 ❄️ | 32.5°C | 16.8°C | 24.6°C | 175 mm | 80% | 1.7 m/s | 5.2 |
| 1983 | 33.5°C | 19.6°C | 26.6°C | 96 mm | 79% | 1.8 m/s | — |
| 1982 | 35.7°C | 20.9°C | 28.3°C | 120 mm | 72% | 1.7 m/s | — |
| 1981 | 32.0°C | 21.1°C | 26.5°C | 295 mm | 86% | 1.5 m/s | — |
Actual recorded October data for each year, 1981–2025 — sourced from NASA POWER.
The average high in October is around 34.9°C with lows near 20.8°C (mean 27.9°C), based on 45 years of NASA POWER data.
October averages 152 mm of rainfall in Tiruchirappalli, a relatively wet time of year. The wettest on record was 323 mm in 2005.
The hottest October reached 39°C in 2016. The coldest dipped to 16.2°C in 2000.
Comparing the earliest years on record (1981–1985) with the most recent (2021–2025), average October temperatures have risen by about 1.7°C. Daytime highs moved from 33.7°C to 35.3°C and overnight lows from 19.5°C to 21.3°C over the same span.
October is one of the cooler months of the year in Tiruchirappalli and a relatively wet time of year, so plan for around 34.9°C daytime highs and 20.8°C at night.
Not quite — October is the 5th coolest month in Tiruchirappalli, averaging 27.9°C.
For October in Tiruchirappalli, pack light, breathable clothing and sun protection, with typical highs of 34.9°C and lows of 20.8°C. Bring an umbrella or light rain jacket too.
Relative humidity in October averages 79% — quite humid.
Average wind speed in October is 1.8 m/s. The windiest October on record averaged 2.3 m/s (1990).
The wettest October on record was 2005 with 323 mm. On average, October sees 152 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 Tiruchirappalli 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.
