December is one of the cooler months of the year in Coimbatore, with average highs near 27.9°C and lows around 17.3°C (mean 22.6°C). It is one of the drier months, averaging 36 mm of rainfall and 79% relative humidity across the period.
December is one of the cooler months of the year in Coimbatore. Across 45 years of records, the warmest December in Coimbatore was 2016 — when the month averaged 24.6°C — while the coldest was 1992 at 20.6°C. Typical December days reach 27.9°C with nights near 17.3°C. The long-term December temperature trend is broadly flat.
December is one of the drier months in Coimbatore, averaging 36 mm of rainfall. The wettest December on record was 1996 with 122 mm, while the driest were 1990 and 1995 at 1 mm.
Relative humidity in Coimbatore during December averages 79%. The most humid December was 1997 at 89%, and the least humid was 2016 at 65%.
December receives about 4.9 kWh/m²/day of solar energy in Coimbatore. The sunniest Decembers were 1995 and 2003 at 5.4 kWh/m²/day, and the cloudiest were 2020 and 2022 at 4.4.
Average wind speed in Coimbatore during December is 1.8 m/s. The windiest December was 1982 at 2.3 m/s, while the calmest were 2005 and 2010 at 1.4 m/s.
Ranked against the other 11 months using 1981–2025 averages.
| Metric | 1980s | 1990s | 2000s | 2010s | 2020s | Change |
|---|---|---|---|---|---|---|
| Avg Temp | 23.2°C | 21.9°C | 22.2°C | 23.1°C | 22.7°C | -0.5°C |
| Avg High | 28.7°C | 27.2°C | 27.8°C | 28.4°C | 27.1°C | -1.6°C |
| Avg Low | 17.6°C | 16.7°C | 16.6°C | 17.9°C | 18.3°C | +0.7°C |
| Avg Rain | 36 mm | 38 mm | 19 mm | 32 mm | 71 mm | +35 mm |
December temperatures in Coimbatore have stayed relatively stable across the record.
December has ranged from a record low of 11.1°C (1994) to a record high of 33.2°C (2003).
Rainfall in December is one of the drier months, averaging 36 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 0.3°C per decade, narrowing the gap between day and night.
One of the best times to visit Coimbatore
December is one of the best times to visit Coimbatore. Expect days averaging 27.9°C and nights around 17.3°C (mean 22.6°C) — cooler than Coimbatore's yearly average — with moderate rainfall (36 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 | 28.2°C | 22.5°C | 16.9°C | 30.7°C | 13.5°C | 22 mm | 78% | 1.7 m/s | — |
| 2024 | 27.3°C | 23.4°C | 19.5°C | 29.0°C | 15.9°C | 113 mm | 87% | 1.5 m/s | 4.5 |
| 2023 | 27.2°C | 23.2°C | 19.3°C | 29.9°C | 15.3°C | 86 mm | 87% | 1.7 m/s | 4.5 |
| 2022 | 27.1°C | 22.7°C | 18.4°C | 29.2°C | 16.0°C | 96 mm | 83% | 1.6 m/s | 4.4 |
| 2021 | 26.0°C | 21.9°C | 17.7°C | 28.7°C | 13.6°C | 38 mm | 88% | 1.7 m/s | 5 |
| 2020 | 26.8°C | 22.3°C | 17.8°C | 28.5°C | 14.3°C | 71 mm | 85% | 1.9 m/s | 4.4 |
| 2019 | 26.7°C | 22.7°C | 18.7°C | 28.2°C | 16.7°C | 56 mm | 87% | 2 m/s | 4.7 |
| 2018 | 29.6°C | 24.1°C | 18.7°C | 31.6°C | 17.0°C | 11 mm | 75% | 1.5 m/s | 4.6 |
| 2017 | 27.5°C | 22.5°C | 17.6°C | 29.5°C | 13.9°C | 46 mm | 80% | 1.6 m/s | 5 |
| 2016 🔥 | 31.4°C | 24.6°C | 17.8°C | 33.1°C | 14.8°C | 54 mm | 65% | 1.6 m/s | 4.8 |
| 2015 | 27.8°C | 23.2°C | 18.5°C | 29.9°C | 15.4°C | 43 mm | 83% | 2 m/s | 4.7 |
| 2014 | 28.1°C | 23.2°C | 18.3°C | 31.2°C | 14.8°C | 19 mm | 79% | 1.7 m/s | 4.5 |
| 2013 | 28.9°C | 22.9°C | 16.9°C | 31.3°C | 13.6°C | 29 mm | 74% | 1.7 m/s | 5 |
| 2012 | 30.5°C | 24.4°C | 18.4°C | 32.3°C | 15.6°C | 6 mm | 71% | 2.2 m/s | 4.9 |
| 2011 | 27.8°C | 22.2°C | 16.7°C | 32.6°C | 12.8°C | 20 mm | 78% | 1.7 m/s | 4.8 |
| 2010 | 25.6°C | 21.6°C | 17.6°C | 27.6°C | 13.0°C | 34 mm | 87% | 1.4 m/s | 4.6 |
| 2009 | 28.2°C | 23.3°C | 18.4°C | 30.6°C | 14.6°C | 14 mm | 80% | 1.8 m/s | 4.7 |
| 2008 | 27.5°C | 21.9°C | 16.3°C | 29.1°C | 12.2°C | 10 mm | 79% | 1.9 m/s | 4.9 |
| 2007 | 26.5°C | 21.8°C | 17.1°C | 28.0°C | 13.3°C | 74 mm | 82% | 2.2 m/s | 4.8 |
| 2006 | 26.5°C | 21.2°C | 15.9°C | 27.9°C | 13.5°C | 2 mm | 82% | 2.1 m/s | 5.1 |
| 2005 | 26.1°C | 21.9°C | 17.7°C | 28.6°C | 13.0°C | 30 mm | 86% | 1.4 m/s | 4.9 |
| 2004 | 27.0°C | 21.1°C | 15.3°C | 29.3°C | 12.5°C | 2 mm | 80% | 1.9 m/s | 5.3 |
| 2003 | 30.0°C | 23.3°C | 16.6°C | 33.2°C | 13.0°C | 14 mm | 71% | 1.8 m/s | 5.4 |
| 2002 | 29.3°C | 22.7°C | 16.2°C | 30.5°C | 13.0°C | 2 mm | 70% | 1.8 m/s | 5.1 |
| 2001 | 27.8°C | 22.2°C | 16.6°C | 29.4°C | 12.3°C | 16 mm | 77% | 2.1 m/s | 5 |
| 2000 | 28.6°C | 22.1°C | 15.6°C | 31.6°C | 11.9°C | 26 mm | 73% | 2 m/s | 5.2 |
| 1999 | 27.0°C | 21.7°C | 16.4°C | 28.3°C | 13.2°C | 21 mm | 79% | 1.8 m/s | 5.1 |
| 1998 | 26.1°C | 21.7°C | 17.3°C | 28.8°C | 12.5°C | 93 mm | 84% | 1.8 m/s | 4.5 |
| 1997 | 26.5°C | 23.0°C | 19.5°C | 27.8°C | 16.2°C | 65 mm | 89% | 1.7 m/s | 4.7 |
| 1996 🌧️ | 26.4°C | 21.4°C | 16.4°C | 31.3°C | 11.1°C | 122 mm | 81% | 1.7 m/s | 4.6 |
| 1995 | 28.4°C | 21.7°C | 14.9°C | 29.7°C | 13.2°C | 1 mm | 72% | 2 m/s | 5.4 |
| 1994 | 27.5°C | 21.4°C | 15.3°C | 29.6°C | 11.1°C | 6 mm | 76% | 1.9 m/s | 5.2 |
| 1993 | 25.5°C | 21.2°C | 16.8°C | 27.4°C | 13.1°C | 55 mm | 86% | 1.9 m/s | 4.8 |
| 1992 ❄️ | 25.8°C | 20.6°C | 15.5°C | 27.2°C | 12.2°C | 7 mm | 83% | 2.2 m/s | 5.1 |
| 1991 | 28.4°C | 22.4°C | 16.3°C | 31.7°C | 13.3°C | 5 mm | 75% | 1.9 m/s | 5.1 |
| 1990 | 30.0°C | 24.0°C | 18.1°C | 32.4°C | 14.2°C | 1 mm | 72% | 2.2 m/s | 5 |
| 1989 | 29.2°C | 23.2°C | 17.3°C | 31.5°C | 14.5°C | 19 mm | 74% | 2.1 m/s | 5.2 |
| 1988 | 30.3°C | 23.7°C | 17.1°C | 32.0°C | 13.6°C | 17 mm | 68% | 1.9 m/s | 5.3 |
| 1987 | 26.8°C | 22.7°C | 18.5°C | 29.4°C | 12.9°C | 101 mm | 83% | 1.5 m/s | 4.7 |
| 1986 | 30.3°C | 24.5°C | 18.7°C | 31.5°C | 15.4°C | 9 mm | 73% | 2.1 m/s | 5.1 |
| 1985 | 29.3°C | 23.7°C | 18.0°C | 31.6°C | 14.2°C | 21 mm | 74% | 1.8 m/s | 5 |
| 1984 | 29.2°C | 22.6°C | 16.1°C | 33.0°C | 13.1°C | 40 mm | 70% | 1.5 m/s | 5.2 |
| 1983 | 27.7°C | 23.3°C | 18.8°C | 29.7°C | 16.0°C | 79 mm | 81% | 2.1 m/s | — |
| 1982 | 29.2°C | 23.2°C | 17.2°C | 30.7°C | 14.3°C | 4 mm | 71% | 2.3 m/s | — |
| 1981 | 26.1°C | 21.5°C | 17.0°C | 27.2°C | 13.4°C | 32 mm | 82% | 1.7 m/s | — |
Actual recorded December data for each year, 1981–2025 — sourced from NASA POWER.
The average high in December is around 27.9°C with lows near 17.3°C (mean 22.6°C), based on 45 years of NASA POWER data.
December averages 36 mm of rainfall in Coimbatore, one of the drier months. The wettest on record was 122 mm in 1996.
The hottest December reached 33.2°C in 2003. The coldest dipped to 11.1°C in 1994.
Comparing the earliest years on record (1981–1985) with the most recent (2021–2025), average December temperatures have fallen by about 0.2°C — but days and nights have moved in opposite directions. Overnight lows rose from 17.4°C to 18.4°C while daytime highs eased from 28.3°C to 27.2°C, narrowing the gap between day and night.
December is one of the cooler months of the year in Coimbatore and one of the drier months, so plan for around 27.9°C daytime highs and 17.3°C at night.
Yes — December is the coldest month of the year in Coimbatore, averaging 22.6°C.
For December in Coimbatore, pack light layers you can adjust through the day, with typical highs of 27.9°C and lows of 17.3°C.
Relative humidity in December averages 79% — quite humid.
Average wind speed in December is 1.8 m/s. The windiest December on record averaged 2.3 m/s (1982).
The wettest December on record was 1996 with 122 mm. On average, December sees 36 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 Coimbatore 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.
