December is one of the cooler months of the year in Tenkasi, with average highs near 30.2°C and lows around 15.9°C (mean 23.1°C). It is one of the drier months, averaging 69 mm of rainfall and 85% relative humidity across the period.
December is one of the cooler months of the year in Tenkasi. Across 45 years of records, the warmest December in Tenkasi was 2018 — when the month averaged 25.6°C — while the coldest was 1992 at 20.8°C. Typical December days reach 30.2°C with nights near 15.9°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 | 23.7°C | 22.4°C | 22.1°C | 23.7°C | 23.8°C | +0.1°C |
| Avg High | 31.3°C | 29.7°C | 29.2°C | 30.6°C | 30.6°C | -0.7°C |
| Avg Low | 16.1°C | 15.0°C | 14.9°C | 16.8°C | 17.0°C | +0.9°C |
| Avg Rain | 74 mm | 62 mm | 33 mm | 76 mm | 122 mm | +48 mm |
December temperatures in Tenkasi have stayed relatively stable across the record.
December has ranged from a record low of 13.3°C (1994) to a record high of 34.8°C (1984).
Rainfall in December is one of the drier months, averaging 69 mm, with a wettest year of 301 mm.
Daytime highs and overnight lows have shifted differently — highs fell about 0.1°C per decade while lows rose 0.4°C per decade, narrowing the gap between day and night.
One of the best times to visit Tenkasi
December is one of the best times to visit Tenkasi. Expect days averaging 30.2°C and nights around 15.9°C (mean 23.1°C) — cooler than Tenkasi's yearly average — with moderate rainfall (69 mm), so conditions are generally comfortable for sightseeing and outdoor plans.
| Year | High | Low | Avg | Rainfall | Humidity | Wind | Solar |
|---|---|---|---|---|---|---|---|
| 2025 | 31.2°C | 14.7°C | 22.9°C | 16 mm | 84% | 1.7 m/s | — |
| 2024 | 31.0°C | 18.9°C | 25.0°C | 124 mm | 86% | 1.6 m/s | 4.4 |
| 2023 | 30.3°C | 18.8°C | 24.6°C | 293 mm | 90% | 2.2 m/s | 4 |
| 2022 | 31.8°C | 17.4°C | 24.6°C | 97 mm | 85% | 1.7 m/s | 4.1 |
| 2021 | 30.3°C | 15.1°C | 22.7°C | 107 mm | 89% | 1.7 m/s | 4.8 |
| 2020 | 28.8°C | 16.9°C | 22.8°C | 96 mm | 89% | 1.9 m/s | 3.9 |
| 2019 | 28.9°C | 18.7°C | 23.8°C | 61 mm | 90% | 2 m/s | 4.1 |
| 2018 🔥 | 32.6°C | 18.6°C | 25.6°C | 16 mm | 78% | 1.6 m/s | 4.5 |
| 2017 | 29.5°C | 15.0°C | 22.2°C | 91 mm | 87% | 1.7 m/s | 4.6 |
| 2016 | 33.7°C | 17.3°C | 25.5°C | 38 mm | 72% | 1.8 m/s | 4.7 |
| 2015 | 29.0°C | 16.7°C | 22.9°C | 136 mm | 91% | 1.9 m/s | 4 |
| 2014 | 29.6°C | 16.1°C | 22.8°C | 85 mm | 89% | 1.9 m/s | 3.9 |
| 2013 | 30.5°C | 16.0°C | 23.2°C | 53 mm | 81% | 1.7 m/s | 4.5 |
| 2012 | 31.7°C | 17.1°C | 24.4°C | 46 mm | 79% | 2.3 m/s | 4.3 |
| 2011 | 31.5°C | 16.1°C | 23.8°C | 104 mm | 83% | 1.8 m/s | 4.4 |
| 2010 | 28.5°C | 16.1°C | 22.3°C | 128 mm | 89% | 1.5 m/s | 4.1 |
| 2009 | 29.6°C | 16.7°C | 23.1°C | 37 mm | 87% | 1.8 m/s | 4.3 |
| 2008 | 28.6°C | 13.6°C | 21.1°C | 17 mm | 87% | 1.9 m/s | 4.5 |
| 2007 | 29.1°C | 15.7°C | 22.4°C | 28 mm | 85% | 2 m/s | 4.4 |
| 2006 | 28.2°C | 14.3°C | 21.2°C | 6 mm | 88% | 2.3 m/s | 4.7 |
| 2005 | 30.1°C | 15.2°C | 22.6°C | 104 mm | 88% | 1.4 m/s | 4.6 |
| 2004 | 28.3°C | 14.7°C | 21.5°C | 20 mm | 86% | 2.2 m/s | 4.7 |
| 2003 | 29.9°C | 14.8°C | 22.3°C | 16 mm | 84% | 1.8 m/s | 5.1 |
| 2002 | 28.4°C | 15.8°C | 22.1°C | 8 mm | 85% | 1.9 m/s | 4.4 |
| 2001 | 28.0°C | 14.6°C | 21.3°C | 37 mm | 88% | 2.1 m/s | 4.6 |
| 2000 | 32.2°C | 14.0°C | 23.1°C | 56 mm | 80% | 2 m/s | 4.9 |
| 1999 | 28.2°C | 14.2°C | 21.2°C | 20 mm | 85% | 1.8 m/s | 4.8 |
| 1998 | 28.7°C | 15.1°C | 21.9°C | 187 mm | 89% | 1.8 m/s | 3.9 |
| 1997 | 29.0°C | 17.3°C | 23.1°C | 93 mm | 91% | 1.7 m/s | 4.3 |
| 1996 | 29.5°C | 14.3°C | 21.9°C | 92 mm | 87% | 1.5 m/s | 4.5 |
| 1995 | 31.5°C | 15.1°C | 23.3°C | 1 mm | 76% | 2.1 m/s | 5.4 |
| 1994 | 30.3°C | 13.3°C | 21.8°C | 23 mm | 82% | 2.1 m/s | 5.2 |
| 1993 | 28.9°C | 16.2°C | 22.5°C | 153 mm | 90% | 2 m/s | 4 |
| 1992 ❄️ | 28.1°C | 13.5°C | 20.8°C | 26 mm | 88% | 2.3 m/s | 4.8 |
| 1991 | 31.5°C | 14.5°C | 23.0°C | 13 mm | 83% | 1.9 m/s | 4.9 |
| 1990 | 31.7°C | 16.9°C | 24.3°C | 16 mm | 82% | 2.1 m/s | 4.6 |
| 1989 | 31.5°C | 15.8°C | 23.7°C | 19 mm | 82% | 2.1 m/s | 5 |
| 1988 | 31.0°C | 15.3°C | 23.1°C | 34 mm | 79% | 1.9 m/s | 5 |
| 1987 🌧️ | 29.1°C | 15.9°C | 22.5°C | 301 mm | 89% | 1.3 m/s | 4.6 |
| 1986 | 32.9°C | 17.0°C | 24.9°C | 19 mm | 76% | 2.2 m/s | 4.8 |
| 1985 | 31.1°C | 15.7°C | 23.4°C | 48 mm | 82% | 1.8 m/s | 4.8 |
| 1984 | 34.8°C | 15.1°C | 25.0°C | 12 mm | 71% | 1.6 m/s | 5.1 |
| 1983 | 31.1°C | 17.8°C | 24.4°C | 187 mm | 84% | 1.9 m/s | — |
| 1982 | 30.9°C | 16.8°C | 23.8°C | 25 mm | 81% | 2.2 m/s | — |
| 1981 | 28.9°C | 15.6°C | 22.2°C | 21 mm | 88% | 1.7 m/s | — |
Actual recorded December data for each year, 1981–2025 — sourced from NASA POWER.
The average high in December is around 30.2°C with lows near 15.9°C (mean 23.1°C), based on 45 years of NASA POWER data.
December averages 69 mm of rainfall in Tenkasi, one of the drier months. The wettest on record was 301 mm in 1987.
The hottest December reached 34.8°C in 1984. The coldest dipped to 13.3°C in 1994.
Comparing the earliest years on record (1981–1985) with the most recent (2021–2025), average December temperatures have risen by about 0.2°C. Daytime highs moved from 31.4°C to 30.9°C and overnight lows from 16.2°C to 17°C over the same span.
December is one of the cooler months of the year in Tenkasi and one of the drier months, so plan for around 30.2°C daytime highs and 15.9°C at night.
Yes — December is the coldest month of the year in Tenkasi, averaging 23.1°C.
For December in Tenkasi, pack light, breathable clothing and sun protection, with typical highs of 30.2°C and lows of 15.9°C. Bring an umbrella or light rain jacket too.
Relative humidity in December averages 85% — quite humid.
Average wind speed in December is 1.9 m/s. The windiest December on record averaged 2.3 m/s (1992).
The wettest December on record was 1987 with 301 mm. On average, December sees 69 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 Tenkasi 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.
