January is one of the cooler months of the year in Tiruvallur, with average highs near 28.1°C and lows around 21°C (mean 24.6°C). It is one of the drier months, averaging 25 mm of rainfall and 77% relative humidity across the period.
January is one of the cooler months of the year in Tiruvallur. Across 45 years of records, the warmest January in Tiruvallur was 1991 — when the month averaged 25.7°C — while the coldest was 1992 at 23.4°C. Typical January days reach 28.1°C with nights near 21°C. The long-term January temperature trend is broadly flat.
January is one of the drier months in Tiruvallur, averaging 25 mm of rainfall. The wettest January on record was 2021 with 122 mm, while the driest were 1993 and 2007 at 0 mm.
Relative humidity in Tiruvallur during January averages 77%. The most humid January was 1986 at 83%, and the least humid was 1983 at 70%.
January receives about 4.9 kWh/m²/day of solar energy in Tiruvallur. The sunniest Januarys were 1999 and 2012 at 5.3 kWh/m²/day, and the cloudiest were 1986, 1995 and 2021 at 4.3.
Average wind speed in Tiruvallur during January is 2.8 m/s. The windiest January was 2014 at 3.5 m/s, while the calmest was 2016 at 2.2 m/s.
Ranked against the other 11 months using 1981–2025 averages.
| Metric | 1980s | 1990s | 2000s | 2010s | 2020s | Change |
|---|---|---|---|---|---|---|
| Avg Temp | 24.5°C | 24.2°C | 24.7°C | 24.6°C | 24.9°C | +0.4°C |
| Avg High | 27.9°C | 27.9°C | 28.4°C | 28.3°C | 27.9°C | 0°C |
| Avg Low | 21.0°C | 20.6°C | 21.0°C | 21.0°C | 21.8°C | +0.8°C |
| Avg Rain | 39 mm | 17 mm | 20 mm | 10 mm | 49 mm | +10 mm |
January temperatures in Tiruvallur have stayed relatively stable across the record.
January has ranged from a record low of 17.2°C (1992) to a record high of 33.5°C (1983).
Rainfall in January is one of the drier months, averaging 25 mm, with a wettest year of 122 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.
One of the best times to visit Tiruvallur
January is one of the best times to visit Tiruvallur. Expect days averaging 28.1°C and nights around 21°C (mean 24.6°C) — cooler than Tiruvallur's yearly average — with low rainfall (25 mm), so conditions are generally comfortable for sightseeing and outdoor plans.
| Year | Avg High | Avg Temp | Avg Low | Hottest Day | Coldest Day | Rainfall | Humidity | Wind | Solar |
|---|---|---|---|---|---|---|---|---|---|
| 2025 | 27.3°C | 24.3°C | 21.3°C | 29.1°C | 19.4°C | 45 mm | 81% | 3.1 m/s | 4.5 |
| 2024 | 28.2°C | 25.2°C | 22.3°C | 29.3°C | 20.3°C | 57 mm | 80% | 2.9 m/s | 4.6 |
| 2023 | 27.7°C | 24.4°C | 21.1°C | 28.6°C | 18.6°C | 4 mm | 77% | 2.8 m/s | 5 |
| 2022 | 28.0°C | 25.1°C | 22.1°C | 29.9°C | 20.3°C | 32 mm | 81% | 2.7 m/s | 4.5 |
| 2021 🌧️ | 27.8°C | 25.0°C | 22.3°C | 29.3°C | 20.9°C | 122 mm | 82% | 2.8 m/s | 4.3 |
| 2020 | 28.6°C | 25.2°C | 21.8°C | 30.5°C | 19.1°C | 33 mm | 78% | 2.5 m/s | 4.9 |
| 2019 | 28.7°C | 24.5°C | 20.3°C | 30.5°C | 18.6°C | 1 mm | 74% | 3 m/s | 4.9 |
| 2018 | 28.1°C | 24.2°C | 20.4°C | 29.2°C | 18.7°C | 3 mm | 76% | 2.7 m/s | 5 |
| 2017 | 29.3°C | 25.2°C | 21.1°C | 30.4°C | 19.2°C | 27 mm | 73% | 3.1 m/s | 4.7 |
| 2016 | 27.9°C | 24.5°C | 21.1°C | 29.6°C | 19.4°C | 1 mm | 76% | 2.2 m/s | 4.9 |
| 2015 | 27.8°C | 24.2°C | 20.6°C | 29.1°C | 18.5°C | 4 mm | 77% | 2.8 m/s | 4.8 |
| 2014 | 29.1°C | 25.2°C | 21.4°C | 29.9°C | 20.1°C | 1 mm | 72% | 3.5 m/s | 4.8 |
| 2013 | 29.0°C | 25.0°C | 21.1°C | 29.9°C | 19.5°C | 0 mm | 76% | 2.9 m/s | 5.2 |
| 2012 | 27.5°C | 24.2°C | 20.9°C | 29.1°C | 17.8°C | 26 mm | 78% | 2.3 m/s | 5.3 |
| 2011 | 27.6°C | 24.4°C | 21.1°C | 28.6°C | 18.8°C | 19 mm | 80% | 3.3 m/s | 5.1 |
| 2010 | 27.6°C | 24.6°C | 21.6°C | 28.5°C | 19.2°C | 19 mm | 80% | 2.8 m/s | 4.6 |
| 2009 | 27.8°C | 24.3°C | 20.9°C | 29.8°C | 19.0°C | 26 mm | 76% | 2.6 m/s | 5.1 |
| 2008 | 27.5°C | 24.0°C | 20.5°C | 30.3°C | 18.7°C | 62 mm | 81% | 2.6 m/s | 5.2 |
| 2007 | 28.3°C | 24.6°C | 20.9°C | 29.8°C | 19.1°C | 0 mm | 75% | 2.7 m/s | 4.9 |
| 2006 | 27.4°C | 23.8°C | 20.3°C | 29.2°C | 17.2°C | 4 mm | 78% | 2.7 m/s | 5.1 |
| 2005 | 29.1°C | 25.3°C | 21.5°C | 30.9°C | 18.7°C | 1 mm | 75% | 2.7 m/s | 4.8 |
| 2004 | 29.0°C | 25.1°C | 21.2°C | 30.9°C | 19.2°C | 15 mm | 73% | 3 m/s | 5 |
| 2003 | 28.8°C | 24.8°C | 20.9°C | 30.9°C | 18.9°C | 1 mm | 76% | 3 m/s | 4.9 |
| 2002 | 27.4°C | 24.5°C | 21.5°C | 29.9°C | 18.5°C | 88 mm | 82% | 2.9 m/s | 4.5 |
| 2001 | 29.0°C | 25.1°C | 21.1°C | 31.1°C | 18.3°C | 1 mm | 76% | 3 m/s | 4.7 |
| 2000 | 29.2°C | 25.2°C | 21.2°C | 30.7°C | 18.5°C | 3 mm | 76% | 3.1 m/s | 5.2 |
| 1999 | 27.7°C | 23.7°C | 19.8°C | 29.8°C | 18.3°C | 4 mm | 76% | 2.9 m/s | 5.3 |
| 1998 | 28.3°C | 25.2°C | 22.1°C | 29.7°C | 19.8°C | 0 mm | 78% | 2.6 m/s | 4.8 |
| 1997 | 26.8°C | 23.6°C | 20.4°C | 28.5°C | 17.6°C | 25 mm | 78% | 2.6 m/s | 4.7 |
| 1996 | 29.0°C | 24.8°C | 20.6°C | 30.3°C | 18.7°C | 2 mm | 73% | 3 m/s | 5 |
| 1995 | 26.8°C | 23.8°C | 20.8°C | 28.4°C | 18.1°C | 81 mm | 81% | 3 m/s | 4.3 |
| 1994 | 27.3°C | 24.2°C | 21.0°C | 28.8°C | 18.0°C | 2 mm | 80% | 2.7 m/s | 5 |
| 1993 | 28.0°C | 23.9°C | 19.8°C | 30.2°C | 18.2°C | 0 mm | 78% | 2.4 m/s | 5.1 |
| 1992 ❄️ | 27.2°C | 23.4°C | 19.7°C | 29.8°C | 17.2°C | 24 mm | 74% | 2.7 m/s | 5.2 |
| 1991 🔥 | 29.8°C | 25.7°C | 21.6°C | 32.2°C | 19.3°C | 1 mm | 75% | 2.9 m/s | 5 |
| 1990 | 28.3°C | 24.2°C | 20.1°C | 30.1°C | 17.3°C | 31 mm | 73% | 2.4 m/s | 5.2 |
| 1989 | 28.7°C | 24.6°C | 20.4°C | 30.4°C | 19.0°C | 13 mm | 76% | 2.8 m/s | 4.6 |
| 1988 | 27.5°C | 24.1°C | 20.6°C | 29.0°C | 19.1°C | 1 mm | 78% | 2.6 m/s | 5 |
| 1987 | 28.7°C | 24.9°C | 21.1°C | 29.9°C | 18.8°C | 9 mm | 74% | 3.3 m/s | 4.8 |
| 1986 | 26.5°C | 23.8°C | 21.0°C | 28.4°C | 19.2°C | 121 mm | 83% | 3.2 m/s | 4.3 |
| 1985 | 27.8°C | 24.7°C | 21.6°C | 29.0°C | 19.4°C | 92 mm | 79% | 2.7 m/s | 4.9 |
| 1984 | 27.8°C | 24.9°C | 22.1°C | 28.9°C | 20.6°C | 37 mm | 81% | 2.9 m/s | 4.4 |
| 1983 | 29.7°C | 25.2°C | 20.6°C | 33.5°C | 19.2°C | 0 mm | 70% | 2.8 m/s | — |
| 1982 | 27.3°C | 23.9°C | 20.5°C | 28.4°C | 18.6°C | 2 mm | 77% | 2.5 m/s | — |
| 1981 | 27.4°C | 24.1°C | 20.8°C | 28.9°C | 18.5°C | 76 mm | 78% | 2.8 m/s | — |
Actual recorded January data for each year, 1981–2025 — sourced from NASA POWER.
The average high in January is around 28.1°C with lows near 21°C (mean 24.6°C), based on 45 years of NASA POWER data.
January averages 25 mm of rainfall in Tiruvallur, one of the drier months. The wettest on record was 122 mm in 2021.
The hottest January reached 33.5°C in 1983. The coldest dipped to 17.2°C in 1992.
Comparing the earliest years on record (1981–1985) with the most recent (2021–2025), average January temperatures have risen by about 0.2°C — but days and nights have moved in opposite directions. Overnight lows rose from 21.1°C to 21.8°C while daytime highs eased from 28°C to 27.8°C, narrowing the gap between day and night.
January is one of the cooler months of the year in Tiruvallur and one of the drier months, so plan for around 28.1°C daytime highs and 21°C at night.
Yes — January is the coldest month of the year in Tiruvallur, averaging 24.6°C.
For January in Tiruvallur, pack light layers you can adjust through the day, with typical highs of 28.1°C and lows of 21°C.
Relative humidity in January averages 77% — quite humid.
Average wind speed in January is 2.8 m/s. The windiest January on record averaged 3.5 m/s (2014).
The wettest January on record was 2021 with 122 mm. On average, January sees 25 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 Tiruvallur behaves each January, 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 January specifically, along with year-by-year records and how the month has changed over the decades.
