January is one of the cooler months of the year in Namakkal, with average highs near 31.5°C and lows around 18°C (mean 24.8°C). It is one of the drier months, averaging 14 mm of rainfall and 71% relative humidity across the period.
January is one of the cooler months of the year in Namakkal. Across 45 years of records, the warmest January in Namakkal was 1991 — when the month averaged 26.9°C — while the coldest was 2006 at 22.3°C. Typical January days reach 31.5°C with nights near 18°C. The long-term January temperature trend is broadly flat.
January is one of the drier months in Namakkal, averaging 14 mm of rainfall. The wettest January on record was 2021 with 118 mm, while the driest were 1983 and 1993 at 0 mm.
Relative humidity in Namakkal during January averages 71%. The most humid January was 2021 at 84%, and the least humid was 1989 at 59%.
January receives about 5 kWh/m²/day of solar energy in Namakkal. The sunniest Januarys were 1999 and 2013 at 5.5 kWh/m²/day, and the cloudiest was 2021 at 4.
Average wind speed in Namakkal during January is 2.1 m/s. The windiest Januarys were 1996, 2003 and 2014, among others at 2.4 m/s, while the calmest were 2006 and 2008 at 1.7 m/s.
Ranked against the other 11 months using 1981–2025 averages.
| Metric | 1980s | 1990s | 2000s | 2010s | 2020s | Change |
|---|---|---|---|---|---|---|
| Avg Temp | 24.8°C | 24.3°C | 24.7°C | 25.2°C | 24.9°C | +0.1°C |
| Avg High | 31.6°C | 31.4°C | 31.4°C | 32.1°C | 31.0°C | -0.6°C |
| Avg Low | 17.9°C | 17.3°C | 17.9°C | 18.2°C | 18.8°C | +0.9°C |
| Avg Rain | 24 mm | 10 mm | 8 mm | 6 mm | 31 mm | +7 mm |
January temperatures in Namakkal have risen by about 0.3°C between 1981–1985 and 2021–2025.
January has ranged from a record low of 12.6°C (1992) to a record high of 38.1°C (1991).
Rainfall in January is one of the drier months, averaging 14 mm, with a wettest year of 118 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 Namakkal
January is one of the best times to visit Namakkal. Expect days averaging 31.5°C and nights around 18°C (mean 24.8°C) — cooler than Namakkal's yearly average — with low rainfall (14 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 | 30.0°C | 24.0°C | 18.0°C | 33.0°C | 16.1°C | 15 mm | 78% | 2.1 m/s | 4.6 |
| 2024 | 32.1°C | 25.9°C | 19.6°C | 34.5°C | 17.5°C | 27 mm | 73% | 2.1 m/s | 4.5 |
| 2023 | 31.8°C | 24.5°C | 17.2°C | 33.1°C | 14.9°C | 4 mm | 70% | 2 m/s | 5.1 |
| 2022 | 30.1°C | 24.8°C | 19.4°C | 32.9°C | 16.5°C | 19 mm | 80% | 1.8 m/s | 4.8 |
| 2021 🌧️ | 28.9°C | 24.2°C | 19.5°C | 31.0°C | 15.5°C | 118 mm | 84% | 2 m/s | 4 |
| 2020 | 32.9°C | 26.0°C | 19.1°C | 35.6°C | 15.8°C | 4 mm | 71% | 2.1 m/s | 5.3 |
| 2019 | 33.4°C | 25.3°C | 17.3°C | 35.3°C | 14.1°C | 0 mm | 62% | 2.2 m/s | 5.4 |
| 2018 | 32.5°C | 25.3°C | 18.1°C | 34.6°C | 15.4°C | 5 mm | 67% | 2 m/s | 5.1 |
| 2017 | 33.4°C | 26.1°C | 18.8°C | 34.7°C | 15.9°C | 24 mm | 61% | 2.3 m/s | 4.9 |
| 2016 | 31.4°C | 24.6°C | 17.9°C | 34.2°C | 14.4°C | 2 mm | 72% | 2 m/s | 5 |
| 2015 | 32.4°C | 25.4°C | 18.4°C | 33.9°C | 14.5°C | 4 mm | 68% | 2.1 m/s | 5 |
| 2014 | 32.6°C | 25.6°C | 18.6°C | 34.2°C | 16.8°C | 2 mm | 65% | 2.4 m/s | 4.9 |
| 2013 | 34.1°C | 26.6°C | 19.0°C | 35.1°C | 16.9°C | 1 mm | 62% | 2.2 m/s | 5.5 |
| 2012 | 31.4°C | 24.5°C | 17.5°C | 32.4°C | 13.2°C | 4 mm | 72% | 1.9 m/s | 5.4 |
| 2011 | 28.3°C | 22.8°C | 17.3°C | 30.6°C | 14.3°C | 7 mm | 83% | 1.9 m/s | 5.2 |
| 2010 | 31.9°C | 25.4°C | 18.8°C | 33.6°C | 15.5°C | 7 mm | 73% | 2.1 m/s | 4.9 |
| 2009 | 29.5°C | 23.0°C | 16.6°C | 33.3°C | 14.5°C | 9 mm | 77% | 1.9 m/s | 5.3 |
| 2008 | 30.1°C | 23.5°C | 16.9°C | 33.6°C | 14.3°C | 12 mm | 77% | 1.7 m/s | 5.4 |
| 2007 | 32.3°C | 24.8°C | 17.4°C | 33.9°C | 15.2°C | 4 mm | 69% | 2.3 m/s | 5 |
| 2006 ❄️ | 27.7°C | 22.3°C | 16.8°C | 29.1°C | 13.1°C | 16 mm | 83% | 1.7 m/s | 5.2 |
| 2005 | 31.7°C | 25.0°C | 18.2°C | 34.0°C | 14.8°C | 7 mm | 72% | 1.9 m/s | 5.2 |
| 2004 | 32.7°C | 25.6°C | 18.4°C | 34.7°C | 15.1°C | 6 mm | 67% | 2 m/s | 5.3 |
| 2003 | 33.9°C | 26.4°C | 19.0°C | 36.3°C | 17.1°C | 1 mm | 61% | 2.4 m/s | 5.2 |
| 2002 | 32.6°C | 25.9°C | 19.1°C | 36.0°C | 14.4°C | 12 mm | 69% | 2.1 m/s | 4.9 |
| 2001 | 31.7°C | 25.2°C | 18.6°C | 34.3°C | 15.0°C | 2 mm | 71% | 2.1 m/s | 4.8 |
| 2000 | 31.9°C | 25.1°C | 18.3°C | 34.0°C | 14.3°C | 10 mm | 71% | 2.2 m/s | 5 |
| 1999 | 30.5°C | 23.5°C | 16.4°C | 33.3°C | 13.5°C | 1 mm | 73% | 1.9 m/s | 5.5 |
| 1998 | 30.5°C | 24.3°C | 18.2°C | 33.2°C | 15.6°C | 1 mm | 78% | 1.9 m/s | 4.7 |
| 1997 | 29.6°C | 23.3°C | 17.0°C | 31.8°C | 13.0°C | 21 mm | 76% | 1.8 m/s | 4.8 |
| 1996 | 33.3°C | 25.5°C | 17.6°C | 34.6°C | 15.4°C | 1 mm | 61% | 2.4 m/s | 5.1 |
| 1995 | 32.0°C | 25.2°C | 18.4°C | 33.8°C | 13.1°C | 23 mm | 70% | 2.3 m/s | 4.5 |
| 1994 | 28.7°C | 23.0°C | 17.3°C | 31.9°C | 14.2°C | 10 mm | 82% | 1.9 m/s | 5 |
| 1993 | 31.2°C | 23.7°C | 16.1°C | 34.4°C | 14.2°C | 0 mm | 70% | 2 m/s | 5.2 |
| 1992 | 31.1°C | 23.5°C | 15.8°C | 33.5°C | 12.6°C | 1 mm | 68% | 2.3 m/s | 5.3 |
| 1991 🔥 | 34.3°C | 26.9°C | 19.5°C | 38.1°C | 16.6°C | 1 mm | 61% | 2.4 m/s | 4.9 |
| 1990 | 32.3°C | 24.4°C | 16.5°C | 34.6°C | 12.8°C | 44 mm | 66% | 2.1 m/s | 5.3 |
| 1989 | 34.3°C | 26.4°C | 18.4°C | 35.8°C | 16.0°C | 2 mm | 59% | 2.4 m/s | 4.7 |
| 1988 | 31.5°C | 24.3°C | 17.0°C | 34.3°C | 14.4°C | 0 mm | 70% | 2.1 m/s | 5.1 |
| 1987 | 32.9°C | 25.3°C | 17.8°C | 34.6°C | 14.2°C | 4 mm | 65% | 2.4 m/s | 5.1 |
| 1986 | 30.9°C | 24.9°C | 19.0°C | 33.6°C | 15.9°C | 34 mm | 73% | 2.1 m/s | 4.5 |
| 1985 | 30.3°C | 24.4°C | 18.4°C | 33.2°C | 14.9°C | 96 mm | 76% | 1.9 m/s | 4.9 |
| 1984 | 28.5°C | 23.7°C | 18.9°C | 30.4°C | 16.6°C | 57 mm | 83% | 1.9 m/s | 4.4 |
| 1983 | 33.7°C | 25.6°C | 17.5°C | 37.6°C | 14.5°C | 0 mm | 60% | 2.2 m/s | — |
| 1982 | 29.8°C | 23.0°C | 16.1°C | 32.2°C | 14.3°C | 1 mm | 75% | 1.9 m/s | — |
| 1981 | 32.4°C | 25.3°C | 18.2°C | 35.0°C | 16.1°C | 21 mm | 66% | 2.1 m/s | — |
Actual recorded January data for each year, 1981–2025 — sourced from NASA POWER.
The average high in January is around 31.5°C with lows near 18°C (mean 24.8°C), based on 45 years of NASA POWER data.
January averages 14 mm of rainfall in Namakkal, one of the drier months. The wettest on record was 118 mm in 2021.
The hottest January reached 38.1°C in 1991. The coldest dipped to 12.6°C in 1992.
Comparing the earliest years on record (1981–1985) with the most recent (2021–2025), average January temperatures have risen by about 0.3°C — but days and nights have moved in opposite directions. Overnight lows rose from 17.8°C to 18.7°C while daytime highs eased from 30.9°C to 30.6°C, narrowing the gap between day and night.
January is one of the cooler months of the year in Namakkal and one of the drier months, so plan for around 31.5°C daytime highs and 18°C at night.
Not quite — January is the 2nd coolest month in Namakkal, averaging 24.8°C.
For January in Namakkal, pack light, breathable clothing and sun protection, with typical highs of 31.5°C and lows of 18°C.
Relative humidity in January averages 71% — moderately humid.
Average wind speed in January is 2.1 m/s. The windiest January on record averaged 2.4 m/s (1987).
The wettest January on record was 2021 with 118 mm. On average, January sees 14 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 Namakkal 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.
