January is one of the cooler months of the year in Viluppuram, with average highs near 29.5°C and lows around 19.2°C (mean 24.4°C). It is one of the drier months, averaging 21 mm of rainfall and 78% relative humidity across the period.
January is one of the cooler months of the year in Viluppuram. Across 45 years of records, the warmest January in Viluppuram was 1991 — when the month averaged 25.8°C — while the coldest was 1992 at 22.9°C. Typical January days reach 29.5°C with nights near 19.2°C. The long-term January temperature trend is broadly flat.
January is one of the drier months in Viluppuram, averaging 21 mm of rainfall. The wettest January on record was 2021 with 100 mm, while the driest were 1983 and 1993 at 0 mm.
Relative humidity in Viluppuram during January averages 78%. The most humid January was 2021 at 86%, and the least humid was 1983 at 69%.
January receives about 4.8 kWh/m²/day of solar energy in Viluppuram. The sunniest Januarys were 1999, 2012 and 2013 at 5.3 kWh/m²/day, and the cloudiest was 2021 at 3.9.
Average wind speed in Viluppuram during January is 2.5 m/s. The windiest January was 2014 at 3 m/s, while the calmest were 2012 and 2016 at 2 m/s.
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 | 24.4°C | 24.6°C | +0.2°C |
| Avg High | 29.7°C | 29.3°C | 29.7°C | 29.7°C | 29.1°C | -0.6°C |
| Avg Low | 19.2°C | 18.7°C | 19.2°C | 19.1°C | 20.1°C | +0.9°C |
| Avg Rain | 29 mm | 14 mm | 16 mm | 14 mm | 39 mm | +10 mm |
January temperatures in Viluppuram have stayed relatively stable across the record.
January has ranged from a record low of 14.2°C (1992) to a record high of 35.9°C (1983).
Rainfall in January is one of the drier months, averaging 21 mm, with a wettest year of 100 mm.
Daytime highs and overnight lows have shifted differently — highs fell about 0.1°C per decade while lows rose 0.1°C per decade, narrowing the gap between day and night.
One of the best times to visit Viluppuram
January is one of the best times to visit Viluppuram. Expect days averaging 29.5°C and nights around 19.2°C (mean 24.4°C) — cooler than Viluppuram's yearly average — with low rainfall (21 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 | 28.4°C | 24.0°C | 19.5°C | 30.8°C | 17.3°C | 20 mm | 83% | 2.7 m/s | 4.5 |
| 2024 | 29.6°C | 25.1°C | 20.6°C | 31.6°C | 18.4°C | 74 mm | 81% | 2.5 m/s | 4.6 |
| 2023 | 29.1°C | 24.0°C | 18.9°C | 30.7°C | 15.7°C | 4 mm | 78% | 2.4 m/s | 5 |
| 2022 | 29.2°C | 24.9°C | 20.6°C | 32.0°C | 17.5°C | 21 mm | 83% | 2.2 m/s | 4.7 |
| 2021 🌧️ | 28.1°C | 24.3°C | 20.6°C | 29.6°C | 17.9°C | 100 mm | 86% | 2.5 m/s | 3.9 |
| 2020 | 30.1°C | 25.1°C | 20.1°C | 32.6°C | 15.6°C | 16 mm | 79% | 2.1 m/s | 5.2 |
| 2019 | 30.3°C | 24.2°C | 18.0°C | 32.3°C | 15.8°C | 1 mm | 74% | 2.5 m/s | 5.2 |
| 2018 | 29.3°C | 23.8°C | 18.2°C | 30.6°C | 16.1°C | 9 mm | 78% | 2.4 m/s | 5.1 |
| 2017 | 31.1°C | 25.3°C | 19.4°C | 32.1°C | 16.4°C | 56 mm | 71% | 2.8 m/s | 4.8 |
| 2016 | 28.6°C | 23.7°C | 18.9°C | 30.6°C | 16.5°C | 1 mm | 80% | 2 m/s | 4.9 |
| 2015 | 29.5°C | 24.2°C | 18.9°C | 30.8°C | 15.6°C | 8 mm | 78% | 2.5 m/s | 4.8 |
| 2014 | 31.1°C | 25.6°C | 20.0°C | 32.5°C | 18.2°C | 1 mm | 70% | 3 m/s | 4.8 |
| 2013 | 31.0°C | 25.2°C | 19.5°C | 32.1°C | 16.8°C | 1 mm | 75% | 2.6 m/s | 5.3 |
| 2012 | 28.9°C | 23.9°C | 18.9°C | 30.0°C | 14.6°C | 7 mm | 80% | 2 m/s | 5.3 |
| 2011 | 28.1°C | 23.6°C | 19.2°C | 29.4°C | 15.9°C | 36 mm | 84% | 2.7 m/s | 5 |
| 2010 | 29.0°C | 24.4°C | 19.7°C | 30.2°C | 16.5°C | 19 mm | 82% | 2.4 m/s | 4.8 |
| 2009 | 28.6°C | 23.7°C | 18.8°C | 31.1°C | 16.8°C | 15 mm | 79% | 2.3 m/s | 5.2 |
| 2008 | 28.3°C | 23.4°C | 18.5°C | 32.0°C | 15.9°C | 61 mm | 83% | 2.2 m/s | 5.2 |
| 2007 | 29.5°C | 24.1°C | 18.7°C | 31.4°C | 16.7°C | 1 mm | 78% | 2.5 m/s | 4.9 |
| 2006 | 28.2°C | 23.3°C | 18.3°C | 30.8°C | 15.3°C | 12 mm | 81% | 2.3 m/s | 4.9 |
| 2005 | 30.0°C | 24.8°C | 19.6°C | 31.9°C | 16.9°C | 3 mm | 78% | 2.3 m/s | 5.1 |
| 2004 | 31.0°C | 25.2°C | 19.5°C | 32.9°C | 16.4°C | 13 mm | 73% | 2.5 m/s | 5.1 |
| 2003 | 31.3°C | 25.5°C | 19.7°C | 33.7°C | 17.9°C | 1 mm | 72% | 2.8 m/s | 5 |
| 2002 | 29.7°C | 24.9°C | 20.1°C | 33.6°C | 15.2°C | 49 mm | 80% | 2.5 m/s | 4.7 |
| 2001 | 30.5°C | 25.1°C | 19.6°C | 32.9°C | 16.1°C | 1 mm | 76% | 2.6 m/s | 4.7 |
| 2000 | 30.2°C | 24.9°C | 19.6°C | 32.0°C | 17.2°C | 9 mm | 78% | 2.6 m/s | 5 |
| 1999 | 28.6°C | 23.1°C | 17.7°C | 30.9°C | 15.3°C | 2 mm | 78% | 2.5 m/s | 5.3 |
| 1998 | 29.2°C | 24.8°C | 20.4°C | 30.8°C | 17.4°C | 1 mm | 80% | 2.2 m/s | 4.6 |
| 1997 | 27.8°C | 23.0°C | 18.2°C | 30.2°C | 14.2°C | 21 mm | 81% | 2.2 m/s | 4.7 |
| 1996 | 31.3°C | 25.2°C | 19.0°C | 32.7°C | 16.5°C | 3 mm | 69% | 2.7 m/s | 4.8 |
| 1995 | 28.8°C | 24.0°C | 19.2°C | 30.9°C | 15.1°C | 49 mm | 81% | 2.7 m/s | 4.3 |
| 1994 | 28.2°C | 23.7°C | 19.2°C | 30.6°C | 16.1°C | 3 mm | 82% | 2.4 m/s | 4.8 |
| 1993 | 29.9°C | 23.9°C | 18.0°C | 32.5°C | 16.7°C | 0 mm | 76% | 2.3 m/s | 4.8 |
| 1992 ❄️ | 28.4°C | 22.9°C | 17.3°C | 31.3°C | 14.2°C | 8 mm | 77% | 2.5 m/s | 4.9 |
| 1991 🔥 | 31.5°C | 25.8°C | 20.1°C | 34.1°C | 17.4°C | 3 mm | 74% | 2.5 m/s | 4.7 |
| 1990 | 29.3°C | 23.7°C | 18.0°C | 31.9°C | 15.0°C | 52 mm | 76% | 2.3 m/s | 5.1 |
| 1989 | 31.4°C | 25.2°C | 19.0°C | 32.9°C | 16.1°C | 8 mm | 73% | 2.6 m/s | 4.4 |
| 1988 | 29.1°C | 23.8°C | 18.5°C | 31.3°C | 16.4°C | 1 mm | 79% | 2.5 m/s | 4.9 |
| 1987 | 30.8°C | 25.1°C | 19.3°C | 32.7°C | 15.8°C | 8 mm | 73% | 2.8 m/s | 4.9 |
| 1986 | 28.1°C | 23.8°C | 19.6°C | 31.0°C | 16.9°C | 65 mm | 83% | 2.7 m/s | 4.4 |
| 1985 | 29.4°C | 24.6°C | 19.8°C | 31.6°C | 16.4°C | 89 mm | 80% | 2.3 m/s | 4.8 |
| 1984 | 28.2°C | 24.4°C | 20.6°C | 29.7°C | 18.5°C | 42 mm | 84% | 2.3 m/s | 4.1 |
| 1983 | 31.8°C | 25.3°C | 18.7°C | 35.9°C | 16.2°C | 0 mm | 69% | 2.5 m/s | — |
| 1982 | 28.4°C | 23.4°C | 18.3°C | 29.9°C | 16.6°C | 3 mm | 79% | 2.2 m/s | — |
| 1981 | 29.7°C | 24.4°C | 19.2°C | 32.1°C | 17.1°C | 46 mm | 77% | 2.4 m/s | — |
Actual recorded January data for each year, 1981–2025 — sourced from NASA POWER.
The average high in January is around 29.5°C with lows near 19.2°C (mean 24.4°C), based on 45 years of NASA POWER data.
January averages 21 mm of rainfall in Viluppuram, one of the drier months. The wettest on record was 100 mm in 2021.
The hottest January reached 35.9°C in 1983. The coldest dipped to 14.2°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 — but days and nights have moved in opposite directions. Overnight lows rose from 19.3°C to 20°C while daytime highs eased from 29.5°C to 28.9°C, narrowing the gap between day and night.
January is one of the cooler months of the year in Viluppuram and one of the drier months, so plan for around 29.5°C daytime highs and 19.2°C at night.
Not quite — January is the 2nd coolest month in Viluppuram, averaging 24.4°C.
For January in Viluppuram, pack light layers you can adjust through the day, with typical highs of 29.5°C and lows of 19.2°C.
Relative humidity in January averages 78% — quite humid.
Average wind speed in January is 2.5 m/s. The windiest January on record averaged 3 m/s (2014).
The wettest January on record was 2021 with 100 mm. On average, January sees 21 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 Viluppuram 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.
