January is one of the cooler months of the year in Tiruvallur, with average highs near 29.8°C and lows around 18.9°C (mean 24.4°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 1983 — when the month averaged 26.4°C — while the coldest was 1997 at 23°C. Typical January days reach 29.8°C with nights near 18.9°C. The long-term January temperature trend is broadly flat.
Ranked against the other 11 months using 1981–2025 averages.
| Metric | 1980s | 1990s | 2000s | 2010s | 2020s | Change |
|---|---|---|---|---|---|---|
| Avg Temp | 24.4°C | 24.0°C | 24.5°C | 24.2°C | 24.6°C | +0.2°C |
| Avg High | 29.6°C | 29.8°C | 30.4°C | 29.5°C | 29.5°C | -0.1°C |
| Avg Low | 19.2°C | 18.3°C | 18.6°C | 19.0°C | 19.8°C | +0.6°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 fell about 0.1°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 29.8°C and nights around 18.9°C (mean 24.4°C) — cooler than Tiruvallur's yearly average — with low rainfall (25 mm), so conditions are generally comfortable for sightseeing and outdoor plans.
| Year | High | Low | Avg | Rainfall | Humidity | Wind | Solar |
|---|---|---|---|---|---|---|---|
| 2025 | 29.1°C | 19.4°C | 24.2°C | 45 mm | 81% | 3.1 m/s | 4.5 |
| 2024 | 29.3°C | 20.3°C | 24.8°C | 57 mm | 80% | 2.9 m/s | 4.6 |
| 2023 | 28.6°C | 18.6°C | 23.6°C | 4 mm | 77% | 2.8 m/s | 5 |
| 2022 | 29.9°C | 20.3°C | 25.1°C | 32 mm | 81% | 2.7 m/s | 4.5 |
| 2021 🌧️ | 29.3°C | 20.9°C | 25.1°C | 122 mm | 82% | 2.8 m/s | 4.3 |
| 2020 | 30.5°C | 19.1°C | 24.8°C | 33 mm | 78% | 2.5 m/s | 4.9 |
| 2019 | 30.5°C | 18.6°C | 24.5°C | 1 mm | 74% | 3 m/s | 4.9 |
| 2018 | 29.2°C | 18.7°C | 23.9°C | 3 mm | 76% | 2.7 m/s | 5 |
| 2017 | 30.4°C | 19.2°C | 24.8°C | 27 mm | 73% | 3.1 m/s | 4.7 |
| 2016 | 29.6°C | 19.4°C | 24.5°C | 1 mm | 76% | 2.2 m/s | 4.9 |
| 2015 | 29.1°C | 18.5°C | 23.8°C | 4 mm | 77% | 2.8 m/s | 4.8 |
| 2014 | 29.9°C | 20.1°C | 25.0°C | 1 mm | 72% | 3.5 m/s | 4.8 |
| 2013 | 29.9°C | 19.5°C | 24.7°C | 0 mm | 76% | 2.9 m/s | 5.2 |
| 2012 | 29.1°C | 17.8°C | 23.5°C | 26 mm | 78% | 2.3 m/s | 5.3 |
| 2011 | 28.6°C | 18.8°C | 23.7°C | 19 mm | 80% | 3.3 m/s | 5.1 |
| 2010 | 28.5°C | 19.2°C | 23.8°C | 19 mm | 80% | 2.8 m/s | 4.6 |
| 2009 | 29.8°C | 19.0°C | 24.4°C | 26 mm | 76% | 2.6 m/s | 5.1 |
| 2008 | 30.3°C | 18.7°C | 24.5°C | 62 mm | 81% | 2.6 m/s | 5.2 |
| 2007 | 29.8°C | 19.1°C | 24.4°C | 0 mm | 75% | 2.7 m/s | 4.9 |
| 2006 | 29.2°C | 17.2°C | 23.2°C | 4 mm | 78% | 2.7 m/s | 5.1 |
| 2005 | 30.9°C | 18.7°C | 24.8°C | 1 mm | 75% | 2.7 m/s | 4.8 |
| 2004 | 30.9°C | 19.2°C | 25.1°C | 15 mm | 73% | 3 m/s | 5 |
| 2003 | 30.9°C | 18.9°C | 24.9°C | 1 mm | 76% | 3 m/s | 4.9 |
| 2002 | 29.9°C | 18.5°C | 24.2°C | 88 mm | 82% | 2.9 m/s | 4.5 |
| 2001 | 31.1°C | 18.3°C | 24.7°C | 1 mm | 76% | 3 m/s | 4.7 |
| 2000 | 30.7°C | 18.5°C | 24.6°C | 3 mm | 76% | 3.1 m/s | 5.2 |
| 1999 | 29.8°C | 18.3°C | 24.1°C | 4 mm | 76% | 2.9 m/s | 5.3 |
| 1998 | 29.7°C | 19.8°C | 24.8°C | 0 mm | 78% | 2.6 m/s | 4.8 |
| 1997 ❄️ | 28.5°C | 17.6°C | 23.0°C | 25 mm | 78% | 2.6 m/s | 4.7 |
| 1996 | 30.3°C | 18.7°C | 24.5°C | 2 mm | 73% | 3 m/s | 5 |
| 1995 | 28.4°C | 18.1°C | 23.3°C | 81 mm | 81% | 3 m/s | 4.3 |
| 1994 | 28.8°C | 18.0°C | 23.4°C | 2 mm | 80% | 2.7 m/s | 5 |
| 1993 | 30.2°C | 18.2°C | 24.2°C | 0 mm | 78% | 2.4 m/s | 5.1 |
| 1992 | 29.8°C | 17.2°C | 23.5°C | 24 mm | 74% | 2.7 m/s | 5.2 |
| 1991 | 32.2°C | 19.3°C | 25.8°C | 1 mm | 75% | 2.9 m/s | 5 |
| 1990 | 30.1°C | 17.3°C | 23.7°C | 31 mm | 73% | 2.4 m/s | 5.2 |
| 1989 | 30.4°C | 19.0°C | 24.7°C | 13 mm | 76% | 2.8 m/s | 4.6 |
| 1988 | 29.0°C | 19.1°C | 24.0°C | 1 mm | 78% | 2.6 m/s | 5 |
| 1987 | 29.9°C | 18.8°C | 24.4°C | 9 mm | 74% | 3.3 m/s | 4.8 |
| 1986 | 28.4°C | 19.2°C | 23.8°C | 121 mm | 83% | 3.2 m/s | 4.3 |
| 1985 | 29.0°C | 19.4°C | 24.2°C | 92 mm | 79% | 2.7 m/s | 4.9 |
| 1984 | 28.9°C | 20.6°C | 24.8°C | 37 mm | 81% | 2.9 m/s | 4.4 |
| 1983 🔥 | 33.5°C | 19.2°C | 26.4°C | 0 mm | 70% | 2.8 m/s | — |
| 1982 | 28.4°C | 18.6°C | 23.5°C | 2 mm | 77% | 2.5 m/s | — |
| 1981 | 28.9°C | 18.5°C | 23.7°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 29.8°C with lows near 18.9°C (mean 24.4°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 0.1°C. Daytime highs moved from 29.7°C to 29.2°C and overnight lows from 19.3°C to 19.9°C over the same span.
January is one of the cooler months of the year in Tiruvallur and one of the drier months, so plan for around 29.8°C daytime highs and 18.9°C at night.
Not quite — January is the 2nd coolest month in Tiruvallur, averaging 24.4°C.
For January in Tiruvallur, pack light layers you can adjust through the day, with typical highs of 29.8°C and lows of 18.9°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.
