December is one of the cooler months of the year in Namakkal, with average highs near 31.9°C and lows around 15.2°C (mean 23.5°C). It is about average for rainfall, averaging 60 mm of rainfall and 79% relative humidity across the period.
December is one of the cooler months of the year in Namakkal. Across 45 years of records, the warmest December in Namakkal was 2018 — when the month averaged 26.1°C — while the coldest was 2008 at 20.7°C. Typical December days reach 31.9°C with nights near 15.2°C. The long-term December temperature trend is broadly flat.
Ranked against the other 11 months using 1981–2025 averages.
| Metric | 1980s | 1990s | 2000s | 2010s | 2020s | Change |
|---|---|---|---|---|---|---|
| Avg Temp | 24.0°C | 22.9°C | 22.7°C | 24.4°C | 23.7°C | -0.3°C |
| Avg High | 32.8°C | 31.5°C | 31.0°C | 32.7°C | 31.4°C | -1.4°C |
| Avg Low | 15.3°C | 14.4°C | 14.4°C | 16.1°C | 16.0°C | +0.7°C |
| Avg Rain | 67 mm | 74 mm | 53 mm | 42 mm | 71 mm | +4 mm |
December temperatures in Namakkal have stayed relatively stable across the record.
December has ranged from a record low of 12.6°C (2008) to a record high of 36°C (2016).
Rainfall in December is about average for rainfall, averaging 60 mm, with a wettest year of 207 mm.
Daytime highs and overnight lows have shifted differently — highs fell about 0.1°C per decade while lows rose 0.3°C per decade, narrowing the gap between day and night.
One of the best times to visit Namakkal
December is one of the best times to visit Namakkal. Expect days averaging 31.9°C and nights around 15.2°C (mean 23.5°C) — cooler than Namakkal's yearly average — with moderate rainfall (60 mm), so conditions are generally comfortable for sightseeing and outdoor plans.
| Year | High | Low | Avg | Rainfall | Humidity | Wind | Solar |
|---|---|---|---|---|---|---|---|
| 2025 | 32.8°C | 14.4°C | 23.6°C | 24 mm | 76% | 2 m/s | — |
| 2024 | 30.7°C | 17.6°C | 24.1°C | 143 mm | 86% | 1.6 m/s | 3.7 |
| 2023 | 32.6°C | 17.4°C | 25.0°C | 53 mm | 81% | 2.1 m/s | 3.7 |
| 2022 | 31.6°C | 16.6°C | 24.1°C | 79 mm | 81% | 2 m/s | 3.9 |
| 2021 | 30.3°C | 14.0°C | 22.2°C | 32 mm | 85% | 1.7 m/s | 4.4 |
| 2020 | 30.4°C | 15.9°C | 23.2°C | 96 mm | 84% | 2.2 m/s | 3.8 |
| 2019 | 31.4°C | 18.0°C | 24.7°C | 55 mm | 84% | 2.2 m/s | 4 |
| 2018 🔥 | 34.3°C | 17.9°C | 26.1°C | 9 mm | 72% | 2 m/s | 4.4 |
| 2017 | 31.9°C | 16.3°C | 24.1°C | 37 mm | 78% | 2 m/s | 4.4 |
| 2016 | 36.0°C | 15.7°C | 25.9°C | 45 mm | 63% | 2.1 m/s | 4.5 |
| 2015 | 30.7°C | 16.5°C | 23.6°C | 58 mm | 84% | 2.1 m/s | 4 |
| 2014 | 33.6°C | 16.3°C | 25.0°C | 32 mm | 77% | 2.1 m/s | 3.8 |
| 2013 | 33.2°C | 15.0°C | 24.1°C | 39 mm | 74% | 2.1 m/s | 4.6 |
| 2012 | 33.9°C | 16.9°C | 25.4°C | 11 mm | 74% | 2.5 m/s | 4.5 |
| 2011 | 32.5°C | 14.3°C | 23.4°C | 33 mm | 80% | 1.9 m/s | 4.3 |
| 2010 | 29.4°C | 14.2°C | 21.8°C | 104 mm | 87% | 1.7 m/s | 3.6 |
| 2009 | 31.3°C | 16.0°C | 23.7°C | 59 mm | 82% | 2 m/s | 3.7 |
| 2008 ❄️ | 28.8°C | 12.6°C | 20.7°C | 30 mm | 85% | 1.8 m/s | 4.4 |
| 2007 | 31.2°C | 13.2°C | 22.2°C | 187 mm | 81% | 2.2 m/s | 4 |
| 2006 | 30.5°C | 15.2°C | 22.9°C | 22 mm | 79% | 2.3 m/s | 4.5 |
| 2005 | 29.5°C | 15.0°C | 22.3°C | 95 mm | 87% | 1.7 m/s | 4.2 |
| 2004 | 29.2°C | 14.6°C | 21.9°C | 12 mm | 83% | 2 m/s | 4.9 |
| 2003 | 32.9°C | 14.4°C | 23.7°C | 5 mm | 76% | 2 m/s | 5 |
| 2002 | 33.6°C | 15.3°C | 24.4°C | 21 mm | 70% | 2.1 m/s | 4.8 |
| 2001 | 31.5°C | 14.3°C | 22.9°C | 31 mm | 76% | 2.4 m/s | 4.4 |
| 2000 | 31.8°C | 13.4°C | 22.6°C | 67 mm | 79% | 2.1 m/s | 4.6 |
| 1999 | 30.2°C | 14.3°C | 22.2°C | 42 mm | 80% | 2 m/s | 4.4 |
| 1998 | 31.1°C | 13.7°C | 22.4°C | 169 mm | 84% | 2.1 m/s | 3.9 |
| 1997 | 29.9°C | 16.6°C | 23.2°C | 97 mm | 88% | 1.8 m/s | 4 |
| 1996 | 34.7°C | 12.9°C | 23.8°C | 204 mm | 80% | 2 m/s | 3.9 |
| 1995 | 32.1°C | 15.2°C | 23.6°C | 6 mm | 69% | 2.3 m/s | 5.1 |
| 1994 | 32.6°C | 12.9°C | 22.7°C | 25 mm | 73% | 2.2 m/s | 4.9 |
| 1993 | 28.9°C | 14.7°C | 21.8°C | 139 mm | 87% | 2.1 m/s | 3.7 |
| 1992 | 29.0°C | 13.3°C | 21.1°C | 33 mm | 82% | 2.3 m/s | 4.4 |
| 1991 | 32.1°C | 14.6°C | 23.3°C | 19 mm | 79% | 2 m/s | 4.5 |
| 1990 | 34.0°C | 15.9°C | 24.9°C | 2 mm | 70% | 2.5 m/s | 4.5 |
| 1989 | 33.4°C | 16.0°C | 24.7°C | 38 mm | 73% | 2.4 m/s | 4.6 |
| 1988 | 34.5°C | 15.4°C | 24.9°C | 20 mm | 69% | 2.2 m/s | 4.9 |
| 1987 | 33.7°C | 15.0°C | 24.3°C | 161 mm | 82% | 2 m/s | 3.9 |
| 1986 | 32.9°C | 14.8°C | 23.9°C | 47 mm | 76% | 2.3 m/s | 4.5 |
| 1985 | 33.0°C | 15.3°C | 24.2°C | 24 mm | 76% | 2 m/s | 4.8 |
| 1984 | 34.6°C | 14.2°C | 24.4°C | 43 mm | 72% | 1.9 m/s | 4.7 |
| 1983 🌧️ | 31.1°C | 16.9°C | 24.0°C | 207 mm | 83% | 2.3 m/s | — |
| 1982 | 32.6°C | 15.9°C | 24.2°C | 16 mm | 72% | 2.4 m/s | — |
| 1981 | 29.0°C | 14.5°C | 21.7°C | 46 mm | 84% | 1.8 m/s | — |
Actual recorded December data for each year, 1981–2025 — sourced from NASA POWER.
The average high in December is around 31.9°C with lows near 15.2°C (mean 23.5°C), based on 45 years of NASA POWER data.
December averages 60 mm of rainfall in Namakkal, about average for rainfall. The wettest on record was 207 mm in 1983.
The hottest December reached 36°C in 2016. The coldest dipped to 12.6°C in 2008.
Comparing the earliest years on record (1981–1985) with the most recent (2021–2025), average December temperatures have risen by about 0.1°C. Daytime highs moved from 32.1°C to 31.6°C and overnight lows from 15.4°C to 16°C over the same span.
December is one of the cooler months of the year in Namakkal and about average for rainfall, so plan for around 31.9°C daytime highs and 15.2°C at night.
Yes — December is the coldest month of the year in Namakkal, averaging 23.5°C.
For December in Namakkal, pack light, breathable clothing and sun protection, with typical highs of 31.9°C and lows of 15.2°C. Bring an umbrella or light rain jacket too.
Relative humidity in December averages 79% — quite humid.
Average wind speed in December is 2.1 m/s. The windiest December on record averaged 2.5 m/s (1990).
The wettest December on record was 1983 with 207 mm. On average, December sees 60 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 December, 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 December specifically, along with year-by-year records and how the month has changed over the decades.
