October is one of the cooler months of the year in Tiruvannamalai, with average highs near 34.6°C and lows around 21.5°C (mean 28.1°C). It is a relatively wet time of year, averaging 193 mm of rainfall and 80% relative humidity across the period.
October is one of the cooler months of the year in Tiruvannamalai. Across 45 years of records, the warmest October in Tiruvannamalai was 2006 — when the month averaged 30.4°C — while the coldest was 2000 at 25.2°C. Typical October days reach 34.6°C with nights near 21.5°C. The long-term October temperature trend is broadly flat.
Ranked against the other 11 months using 1981–2025 averages.
| Metric | 1980s | 1990s | 2000s | 2010s | 2020s | Change |
|---|---|---|---|---|---|---|
| Avg Temp | 27.7°C | 27.9°C | 28.0°C | 28.2°C | 28.1°C | +0.4°C |
| Avg High | 34.3°C | 34.4°C | 34.9°C | 34.5°C | 34.6°C | +0.3°C |
| Avg Low | 21.1°C | 21.5°C | 21.2°C | 21.9°C | 21.7°C | +0.6°C |
| Avg Rain | 149 mm | 186 mm | 242 mm | 198 mm | 183 mm | +34 mm |
October temperatures in Tiruvannamalai have risen by about 0.6°C between 1981–1985 and 2021–2025.
October has ranged from a record low of 17.4°C (2000) to a record high of 37.4°C (2006).
Rainfall in October is a relatively wet time of year, averaging 193 mm, with a wettest year of 424 mm.
A good time to visit Tiruvannamalai
October is a good time to visit Tiruvannamalai, with days averaging 34.6°C and nights around 21.5°C (mean 28.1°C, close to Tiruvannamalai'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 | 35.3°C | 22.2°C | 28.7°C | 252 mm | 83% | 1.6 m/s | 4.3 |
| 2024 | 36.3°C | 23.0°C | 29.6°C | 229 mm | 82% | 1.5 m/s | 4.6 |
| 2023 | 36.1°C | 22.6°C | 29.3°C | 62 mm | 76% | 1.8 m/s | 5.1 |
| 2022 | 33.3°C | 18.1°C | 25.7°C | 191 mm | 82% | 1.8 m/s | 4.5 |
| 2021 | 32.3°C | 22.4°C | 27.3°C | 235 mm | 85% | 1.7 m/s | 4.5 |
| 2020 | 34.5°C | 22.0°C | 28.2°C | 129 mm | 81% | 1.9 m/s | 4.7 |
| 2019 | 32.4°C | 23.0°C | 27.7°C | 192 mm | 86% | 1.7 m/s | 4.7 |
| 2018 | 35.6°C | 20.4°C | 28.0°C | 160 mm | 80% | 2.1 m/s | 4.9 |
| 2017 | 33.5°C | 22.7°C | 28.1°C | 216 mm | 83% | 1.8 m/s | 4.4 |
| 2016 | 36.8°C | 22.0°C | 29.4°C | 42 mm | 69% | 1.6 m/s | 5.4 |
| 2015 | 33.6°C | 21.2°C | 27.4°C | 146 mm | 77% | 1.8 m/s | 5.4 |
| 2014 | 34.6°C | 21.8°C | 28.2°C | 280 mm | 81% | 1.8 m/s | 4.8 |
| 2013 | 34.4°C | 21.7°C | 28.1°C | 105 mm | 80% | 1.7 m/s | 5 |
| 2012 🌧️ | 37.2°C | 21.7°C | 29.5°C | 424 mm | 81% | 2.3 m/s | 4.6 |
| 2011 | 32.8°C | 22.4°C | 27.6°C | 262 mm | 81% | 1.5 m/s | 4.7 |
| 2010 | 34.5°C | 22.3°C | 28.4°C | 153 mm | 80% | 1.8 m/s | 4.7 |
| 2009 | 36.3°C | 22.0°C | 29.1°C | 61 mm | 70% | 2.2 m/s | 5.3 |
| 2008 | 35.9°C | 18.1°C | 27.0°C | 246 mm | 79% | 1.8 m/s | 4.9 |
| 2007 | 34.7°C | 22.8°C | 28.8°C | 295 mm | 80% | 1.9 m/s | 4.8 |
| 2006 🔥 | 37.4°C | 23.4°C | 30.4°C | 332 mm | 79% | 2.1 m/s | 4.7 |
| 2005 | 33.2°C | 22.5°C | 27.8°C | 346 mm | 85% | 1.8 m/s | 4.5 |
| 2004 | 33.1°C | 21.3°C | 27.2°C | 319 mm | 84% | 2 m/s | 4.6 |
| 2003 | 36.3°C | 21.3°C | 28.8°C | 200 mm | 81% | 1.9 m/s | 5 |
| 2002 | 35.7°C | 21.6°C | 28.6°C | 208 mm | 81% | 2.2 m/s | 4.5 |
| 2001 | 33.3°C | 21.7°C | 27.5°C | 198 mm | 83% | 2 m/s | 4.5 |
| 2000 ❄️ | 33.1°C | 17.4°C | 25.2°C | 212 mm | 79% | 1.7 m/s | 4.8 |
| 1999 | 32.5°C | 21.3°C | 26.9°C | 228 mm | 84% | 1.7 m/s | 4.7 |
| 1998 | 32.7°C | 20.3°C | 26.5°C | 105 mm | 82% | 1.9 m/s | 4.5 |
| 1997 | 35.4°C | 23.4°C | 29.4°C | 176 mm | 79% | 1.9 m/s | 4.7 |
| 1996 | 32.6°C | 20.3°C | 26.5°C | 158 mm | 83% | 1.9 m/s | 4.4 |
| 1995 | 33.6°C | 22.0°C | 27.8°C | 142 mm | 82% | 1.9 m/s | 4.4 |
| 1994 | 34.9°C | 22.7°C | 28.8°C | 164 mm | 80% | 2.1 m/s | 4.7 |
| 1993 | 35.1°C | 20.9°C | 28.0°C | 225 mm | 82% | 1.9 m/s | 4.3 |
| 1992 | 33.7°C | 21.4°C | 27.5°C | 89 mm | 80% | 1.6 m/s | 4.7 |
| 1991 | 36.4°C | 20.8°C | 28.6°C | 279 mm | 78% | 2.2 m/s | 4.3 |
| 1990 | 36.8°C | 21.9°C | 29.3°C | 297 mm | 78% | 2.3 m/s | 4.2 |
| 1989 | 34.1°C | 22.3°C | 28.2°C | 138 mm | 78% | 1.4 m/s | 4.9 |
| 1988 | 35.0°C | 21.2°C | 28.1°C | 41 mm | 72% | 1.8 m/s | 5.5 |
| 1987 | 35.7°C | 21.8°C | 28.7°C | 157 mm | 81% | 2.1 m/s | 4.8 |
| 1986 | 33.4°C | 20.5°C | 26.9°C | 135 mm | 81% | 1.9 m/s | 5 |
| 1985 | 34.8°C | 19.4°C | 27.1°C | 112 mm | 76% | 2.2 m/s | 5.1 |
| 1984 | 32.8°C | 20.0°C | 26.4°C | 142 mm | 80% | 1.8 m/s | 4.9 |
| 1983 | 35.3°C | 20.0°C | 27.7°C | 125 mm | 76% | 2.1 m/s | — |
| 1982 | 35.5°C | 22.1°C | 28.8°C | 155 mm | 76% | 1.9 m/s | — |
| 1981 | 32.5°C | 22.3°C | 27.4°C | 338 mm | 84% | 1.7 m/s | — |
Actual recorded October data for each year, 1981–2025 — sourced from NASA POWER.
The average high in October is around 34.6°C with lows near 21.5°C (mean 28.1°C), based on 45 years of NASA POWER data.
October averages 193 mm of rainfall in Tiruvannamalai, a relatively wet time of year. The wettest on record was 424 mm in 2012.
The hottest October reached 37.4°C in 2006. The coldest dipped to 17.4°C in 2000.
Comparing the earliest years on record (1981–1985) with the most recent (2021–2025), average October temperatures have risen by about 0.6°C. Daytime highs moved from 34.2°C to 34.7°C and overnight lows from 20.8°C to 21.7°C over the same span.
October is one of the cooler months of the year in Tiruvannamalai and a relatively wet time of year, so plan for around 34.6°C daytime highs and 21.5°C at night.
Not quite — October is the 5th coolest month in Tiruvannamalai, averaging 28.1°C.
For October in Tiruvannamalai, pack light, breathable clothing and sun protection, with typical highs of 34.6°C and lows of 21.5°C. Bring an umbrella or light rain jacket too.
Relative humidity in October averages 80% — quite humid.
Average wind speed in October is 1.9 m/s. The windiest October on record averaged 2.3 m/s (1990).
The wettest October on record was 2012 with 424 mm. On average, October sees 193 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 Tiruvannamalai 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.
