January is one of the cooler months of the year in Chengalpattu, with average highs near 29°C and lows around 19.8°C (mean 24.4°C). It is one of the drier months, averaging 27 mm of rainfall and 77% relative humidity across the period.
January is one of the cooler months of the year in Chengalpattu. Across 45 years of records, the warmest January in Chengalpattu was 1983 — when the month averaged 26.2°C — while the coldest were 1990 and 1997 at 23.3°C. Typical January days reach 29°C with nights near 19.8°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 | 24.5°C | 24.0°C | 24.5°C | 24.4°C | 24.7°C | +0.2°C |
| Avg High | 28.9°C | 29.0°C | 29.4°C | 28.9°C | 28.8°C | -0.1°C |
| Avg Low | 20.1°C | 19.1°C | 19.7°C | 19.9°C | 20.6°C | +0.5°C |
| Avg Rain | 42 mm | 17 mm | 21 mm | 14 mm | 49 mm | +7 mm |
January temperatures in Chengalpattu have stayed relatively stable across the record.
January has ranged from a record low of 18.1°C (1990) to a record high of 32.4°C (1983).
Rainfall in January is one of the drier months, averaging 27 mm, with a wettest year of 120 mm.
One of the best times to visit Chengalpattu
January is one of the best times to visit Chengalpattu. Expect days averaging 29°C and nights around 19.8°C (mean 24.4°C) — cooler than Chengalpattu's yearly average — with low rainfall (27 mm), so conditions are generally comfortable for sightseeing and outdoor plans.
| Year | High | Low | Avg | Rainfall | Humidity | Wind | Solar |
|---|---|---|---|---|---|---|---|
| 2025 | 28.6°C | 20.5°C | 24.6°C | 39 mm | 80% | 3.6 m/s | 4.4 |
| 2024 | 28.7°C | 21.3°C | 25.0°C | 74 mm | 79% | 3.3 m/s | 4.6 |
| 2023 | 28.6°C | 19.2°C | 23.9°C | 7 mm | 76% | 3.2 m/s | 4.9 |
| 2022 | 29.5°C | 21.1°C | 25.3°C | 29 mm | 80% | 3 m/s | 4.7 |
| 2021 🌧️ | 28.2°C | 21.6°C | 24.9°C | 120 mm | 82% | 3.3 m/s | 4.1 |
| 2020 | 29.4°C | 19.6°C | 24.5°C | 27 mm | 78% | 2.8 m/s | 5.1 |
| 2019 | 29.6°C | 19.5°C | 24.6°C | 1 mm | 74% | 3.4 m/s | 5.2 |
| 2018 | 28.4°C | 19.5°C | 24.0°C | 6 mm | 77% | 3.2 m/s | 5 |
| 2017 | 29.7°C | 20.1°C | 24.9°C | 40 mm | 72% | 3.6 m/s | 4.8 |
| 2016 | 28.8°C | 20.1°C | 24.5°C | 2 mm | 76% | 2.7 m/s | 5 |
| 2015 | 28.4°C | 19.8°C | 24.1°C | 6 mm | 78% | 3.1 m/s | 4.7 |
| 2014 | 29.4°C | 21.2°C | 25.3°C | 3 mm | 72% | 4 m/s | 4.8 |
| 2013 | 29.2°C | 20.3°C | 24.7°C | 1 mm | 76% | 3.3 m/s | 5.3 |
| 2012 | 28.8°C | 18.8°C | 23.8°C | 23 mm | 78% | 2.7 m/s | 5.2 |
| 2011 | 28.3°C | 19.8°C | 24.1°C | 37 mm | 80% | 3.8 m/s | 5.1 |
| 2010 | 28.4°C | 19.8°C | 24.1°C | 21 mm | 80% | 3.3 m/s | 4.7 |
| 2009 | 28.5°C | 20.1°C | 24.3°C | 25 mm | 76% | 3 m/s | 5.2 |
| 2008 | 29.4°C | 19.3°C | 24.4°C | 72 mm | 81% | 2.9 m/s | 5.2 |
| 2007 | 29.0°C | 19.8°C | 24.4°C | 1 mm | 76% | 3.1 m/s | 4.8 |
| 2006 | 28.2°C | 18.6°C | 23.4°C | 8 mm | 78% | 3.1 m/s | 5.1 |
| 2005 | 29.6°C | 20.0°C | 24.8°C | 3 mm | 77% | 3 m/s | 4.9 |
| 2004 | 30.1°C | 19.9°C | 25.0°C | 14 mm | 73% | 3.3 m/s | 5.1 |
| 2003 | 29.7°C | 20.3°C | 25.0°C | 1 mm | 76% | 3.5 m/s | 4.9 |
| 2002 | 29.3°C | 19.2°C | 24.2°C | 75 mm | 81% | 3.2 m/s | 4.6 |
| 2001 | 30.2°C | 19.4°C | 24.8°C | 1 mm | 77% | 3.5 m/s | 4.7 |
| 2000 | 29.5°C | 19.9°C | 24.7°C | 6 mm | 78% | 3.5 m/s | 5 |
| 1999 | 28.7°C | 19.2°C | 23.9°C | 5 mm | 76% | 3.4 m/s | 5.3 |
| 1998 | 29.1°C | 20.5°C | 24.8°C | 1 mm | 78% | 3 m/s | 4.7 |
| 1997 | 28.1°C | 18.5°C | 23.3°C | 22 mm | 78% | 3 m/s | 4.7 |
| 1996 | 29.5°C | 19.5°C | 24.5°C | 3 mm | 72% | 3.5 m/s | 5 |
| 1995 | 28.2°C | 19.1°C | 23.6°C | 71 mm | 81% | 3.5 m/s | 4.3 |
| 1994 | 28.3°C | 19.0°C | 23.6°C | 3 mm | 80% | 3.2 m/s | 5 |
| 1993 | 29.2°C | 19.5°C | 24.3°C | 1 mm | 77% | 2.8 m/s | 5 |
| 1992 | 28.9°C | 18.1°C | 23.5°C | 19 mm | 75% | 3.2 m/s | 5.1 |
| 1991 | 31.0°C | 19.9°C | 25.4°C | 3 mm | 77% | 3.2 m/s | 4.8 |
| 1990 ❄️ | 28.5°C | 18.1°C | 23.3°C | 44 mm | 75% | 2.8 m/s | 5.1 |
| 1989 | 29.4°C | 19.6°C | 24.5°C | 13 mm | 76% | 3.2 m/s | 4.5 |
| 1988 | 28.6°C | 20.1°C | 24.3°C | 2 mm | 77% | 3.1 m/s | 5 |
| 1987 | 29.5°C | 19.7°C | 24.6°C | 11 mm | 74% | 3.7 m/s | 4.9 |
| 1986 | 27.7°C | 20.2°C | 23.9°C | 112 mm | 82% | 3.6 m/s | 4.3 |
| 1985 | 28.4°C | 19.8°C | 24.1°C | 102 mm | 79% | 3.1 m/s | 5 |
| 1984 | 28.2°C | 21.7°C | 25.0°C | 47 mm | 81% | 3.2 m/s | 4.3 |
| 1983 🔥 | 32.4°C | 20.0°C | 26.2°C | 0 mm | 70% | 3.2 m/s | — |
| 1982 | 27.7°C | 20.0°C | 23.9°C | 3 mm | 77% | 2.8 m/s | — |
| 1981 | 28.0°C | 20.0°C | 24.0°C | 91 mm | 78% | 3.1 m/s | — |
Actual recorded January data for each year, 1981–2025 — sourced from NASA POWER.
The average high in January is around 29°C with lows near 19.8°C (mean 24.4°C), based on 45 years of NASA POWER data.
January averages 27 mm of rainfall in Chengalpattu, one of the drier months. The wettest on record was 120 mm in 2021.
The hottest January reached 32.4°C in 1983. The coldest dipped to 18.1°C in 1990.
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 28.9°C to 28.7°C and overnight lows from 20.3°C to 20.7°C over the same span.
January is one of the cooler months of the year in Chengalpattu and one of the drier months, so plan for around 29°C daytime highs and 19.8°C at night.
Yes — January is the coldest month of the year in Chengalpattu, averaging 24.4°C.
For January in Chengalpattu, pack light layers you can adjust through the day, with typical highs of 29°C and lows of 19.8°C.
Relative humidity in January averages 77% — quite humid.
Average wind speed in January is 3.2 m/s. The windiest January on record averaged 4 m/s (2014).
The wettest January on record was 2021 with 120 mm. On average, January sees 27 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 Chengalpattu 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.
