October is one of the cooler months of the year in Tiruvannamalai, with average highs near 31.2°C and lows around 23.6°C (mean 27.4°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 2016 — when the month averaged 29°C — while the coldest was 1981 at 26.4°C. Typical October days reach 31.2°C with nights near 23.6°C. The long-term October temperature trend is broadly flat.
October is a relatively wet time of year in Tiruvannamalai, averaging 193 mm of rainfall. The wettest October on record was 2012 with 424 mm, while the driest was 1988 at 41 mm.
Relative humidity in Tiruvannamalai during October averages 80%. The most humid October was 2019 at 86%, and the least humid was 2016 at 69%.
October receives about 4.7 kWh/m²/day of solar energy in Tiruvannamalai. The sunniest October was 1988 at 5.5 kWh/m²/day, and the cloudiest was 1990 at 4.2.
Average wind speed in Tiruvannamalai during October is 1.9 m/s. The windiest Octobers were 1990 and 2012 at 2.3 m/s, while the calmest was 1989 at 1.4 m/s.
Ranked against the other 11 months using 1981–2025 averages.
| Metric | 1980s | 1990s | 2000s | 2010s | 2020s | Change |
|---|---|---|---|---|---|---|
| Avg Temp | 27.3°C | 27.2°C | 27.4°C | 27.6°C | 27.6°C | +0.3°C |
| Avg High | 31.4°C | 31.0°C | 31.1°C | 31.3°C | 31.2°C | -0.2°C |
| Avg Low | 23.3°C | 23.5°C | 23.7°C | 23.8°C | 24.0°C | +0.7°C |
| Avg Rain | 149 mm | 186 mm | 242 mm | 198 mm | 183 mm | +34 mm |
October temperatures in Tiruvannamalai have risen by about 0.5°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.
Daytime highs and overnight lows have shifted differently — highs rose about 0°C per decade while lows rose 0.2°C per decade, narrowing the gap between day and night.
A good time to visit Tiruvannamalai
October is a good time to visit Tiruvannamalai, with days averaging 31.2°C and nights around 23.6°C (mean 27.4°C, cooler than Tiruvannamalai's yearly average) and higher rainfall. January and February are marginally more temperate, but October still suits most travellers.
| Year | Avg High | Avg Temp | Avg Low | Hottest Day | Coldest Day | Rainfall | Humidity | Wind | Solar |
|---|---|---|---|---|---|---|---|---|---|
| 2025 | 30.8°C | 27.5°C | 24.2°C | 35.3°C | 22.2°C | 252 mm | 83% | 1.6 m/s | 4.3 |
| 2024 | 31.3°C | 27.8°C | 24.4°C | 36.3°C | 23.0°C | 229 mm | 82% | 1.5 m/s | 4.6 |
| 2023 | 33.2°C | 28.7°C | 24.1°C | 36.1°C | 22.6°C | 62 mm | 76% | 1.8 m/s | 5.1 |
| 2022 | 30.6°C | 27.1°C | 23.6°C | 33.3°C | 18.1°C | 191 mm | 82% | 1.8 m/s | 4.5 |
| 2021 | 30.3°C | 27.2°C | 24.2°C | 32.3°C | 22.4°C | 235 mm | 85% | 1.7 m/s | 4.5 |
| 2020 | 31.1°C | 27.3°C | 23.5°C | 34.5°C | 22.0°C | 129 mm | 81% | 1.9 m/s | 4.7 |
| 2019 | 29.9°C | 26.9°C | 23.9°C | 32.4°C | 23.0°C | 192 mm | 86% | 1.7 m/s | 4.7 |
| 2018 | 31.5°C | 27.4°C | 23.2°C | 35.6°C | 20.4°C | 160 mm | 80% | 2.1 m/s | 4.9 |
| 2017 | 30.7°C | 27.4°C | 24.2°C | 33.5°C | 22.7°C | 216 mm | 83% | 1.8 m/s | 4.4 |
| 2016 🔥 | 34.1°C | 29.0°C | 24.0°C | 36.8°C | 22.0°C | 42 mm | 69% | 1.6 m/s | 5.4 |
| 2015 | 32.4°C | 27.9°C | 23.5°C | 33.6°C | 21.2°C | 146 mm | 77% | 1.8 m/s | 5.4 |
| 2014 | 30.9°C | 27.3°C | 23.8°C | 34.6°C | 21.8°C | 280 mm | 81% | 1.8 m/s | 4.8 |
| 2013 | 31.2°C | 27.6°C | 23.9°C | 34.4°C | 21.7°C | 105 mm | 80% | 1.7 m/s | 5 |
| 2012 🌧️ | 30.9°C | 27.2°C | 23.6°C | 37.2°C | 21.7°C | 424 mm | 81% | 2.3 m/s | 4.6 |
| 2011 | 30.7°C | 27.4°C | 24.0°C | 32.8°C | 22.4°C | 262 mm | 81% | 1.5 m/s | 4.7 |
| 2010 | 31.1°C | 27.6°C | 24.0°C | 34.5°C | 22.3°C | 153 mm | 80% | 1.8 m/s | 4.7 |
| 2009 | 33.8°C | 28.8°C | 23.8°C | 36.3°C | 22.0°C | 61 mm | 70% | 2.2 m/s | 5.3 |
| 2008 | 31.1°C | 27.3°C | 23.6°C | 35.9°C | 18.1°C | 246 mm | 79% | 1.8 m/s | 4.9 |
| 2007 | 30.8°C | 27.3°C | 23.8°C | 34.7°C | 22.8°C | 295 mm | 80% | 1.9 m/s | 4.8 |
| 2006 | 31.8°C | 28.0°C | 24.2°C | 37.4°C | 23.4°C | 332 mm | 79% | 2.1 m/s | 4.7 |
| 2005 | 30.3°C | 27.1°C | 23.9°C | 33.2°C | 22.5°C | 346 mm | 85% | 1.8 m/s | 4.5 |
| 2004 | 30.1°C | 26.8°C | 23.5°C | 33.1°C | 21.3°C | 319 mm | 84% | 2 m/s | 4.6 |
| 2003 | 31.2°C | 27.6°C | 23.9°C | 36.3°C | 21.3°C | 200 mm | 81% | 1.9 m/s | 5 |
| 2002 | 31.1°C | 27.5°C | 23.9°C | 35.7°C | 21.6°C | 208 mm | 81% | 2.2 m/s | 4.5 |
| 2001 | 30.4°C | 27.0°C | 23.6°C | 33.3°C | 21.7°C | 198 mm | 83% | 2 m/s | 4.5 |
| 2000 | 30.6°C | 26.5°C | 22.4°C | 33.1°C | 17.4°C | 212 mm | 79% | 1.7 m/s | 4.8 |
| 1999 | 30.1°C | 26.9°C | 23.8°C | 32.5°C | 21.3°C | 228 mm | 84% | 1.7 m/s | 4.7 |
| 1998 | 30.7°C | 27.1°C | 23.6°C | 32.7°C | 20.3°C | 105 mm | 82% | 1.9 m/s | 4.5 |
| 1997 | 31.9°C | 28.0°C | 24.0°C | 35.4°C | 23.4°C | 176 mm | 79% | 1.9 m/s | 4.7 |
| 1996 | 30.1°C | 26.6°C | 23.1°C | 32.6°C | 20.3°C | 158 mm | 83% | 1.9 m/s | 4.4 |
| 1995 | 30.6°C | 27.1°C | 23.5°C | 33.6°C | 22.0°C | 142 mm | 82% | 1.9 m/s | 4.4 |
| 1994 | 31.3°C | 27.5°C | 23.7°C | 34.9°C | 22.7°C | 164 mm | 80% | 2.1 m/s | 4.7 |
| 1993 | 30.5°C | 27.0°C | 23.5°C | 35.1°C | 20.9°C | 225 mm | 82% | 1.9 m/s | 4.3 |
| 1992 | 30.8°C | 26.9°C | 23.0°C | 33.7°C | 21.4°C | 89 mm | 80% | 1.6 m/s | 4.7 |
| 1991 | 31.6°C | 27.6°C | 23.6°C | 36.4°C | 20.8°C | 279 mm | 78% | 2.2 m/s | 4.3 |
| 1990 | 31.9°C | 27.7°C | 23.6°C | 36.8°C | 21.9°C | 297 mm | 78% | 2.3 m/s | 4.2 |
| 1989 | 31.4°C | 27.6°C | 23.8°C | 34.1°C | 22.3°C | 138 mm | 78% | 1.4 m/s | 4.9 |
| 1988 | 32.9°C | 28.0°C | 23.1°C | 35.0°C | 21.2°C | 41 mm | 72% | 1.8 m/s | 5.5 |
| 1987 | 31.3°C | 27.7°C | 24.1°C | 35.7°C | 21.8°C | 157 mm | 81% | 2.1 m/s | 4.8 |
| 1986 | 30.7°C | 26.9°C | 23.1°C | 33.4°C | 20.5°C | 135 mm | 81% | 1.9 m/s | 5 |
| 1985 | 31.8°C | 27.3°C | 22.8°C | 34.8°C | 19.4°C | 112 mm | 76% | 2.2 m/s | 5.1 |
| 1984 | 30.6°C | 26.6°C | 22.5°C | 32.8°C | 20.0°C | 142 mm | 80% | 1.8 m/s | 4.9 |
| 1983 | 31.9°C | 27.8°C | 23.6°C | 35.3°C | 20.0°C | 125 mm | 76% | 2.1 m/s | — |
| 1982 | 32.1°C | 27.7°C | 23.3°C | 35.5°C | 22.1°C | 155 mm | 76% | 1.9 m/s | — |
| 1981 ❄️ | 29.5°C | 26.4°C | 23.3°C | 32.5°C | 22.3°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 31.2°C with lows near 23.6°C (mean 27.4°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 0.5°C. Daytime highs moved from 31.2°C to 31.2°C and overnight lows from 23.1°C to 24.1°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 31.2°C daytime highs and 23.6°C at night.
Not quite — October is the 5th coolest month in Tiruvannamalai, averaging 27.4°C.
For October in Tiruvannamalai, pack light, breathable clothing and sun protection, with typical highs of 31.2°C and lows of 23.6°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.
