December is one of the cooler months of the year in Sivaganga, with average highs near 30.9°C and lows around 18.1°C (mean 24.5°C). It is a relatively wet time of year, averaging 96 mm of rainfall and 83% relative humidity across the period.
December is one of the cooler months of the year in Sivaganga. Across 45 years of records, the warmest December in Sivaganga was 2016 — when the month averaged 26.5°C — while the coldest was 2004 at 22.9°C. Typical December days reach 30.9°C with nights near 18.1°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 | 25.1°C | 24.4°C | 23.6°C | 25.0°C | 24.5°C | -0.6°C |
| Avg High | 31.8°C | 31.0°C | 30.0°C | 31.5°C | 30.2°C | -1.6°C |
| Avg Low | 18.3°C | 17.8°C | 17.3°C | 18.5°C | 18.9°C | +0.6°C |
| Avg Rain | 94 mm | 95 mm | 73 mm | 81 mm | 160 mm | +66 mm |
December temperatures in Sivaganga have stayed relatively stable across the record.
December has ranged from a record low of 15.6°C (2007) to a record high of 35.3°C (1996).
Rainfall in December is a relatively wet time of year, averaging 96 mm, with a wettest year of 290 mm.
Daytime highs and overnight lows have shifted differently — highs fell about 0.2°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 Sivaganga
December is one of the best times to visit Sivaganga. Expect days averaging 30.9°C and nights around 18.1°C (mean 24.5°C) — cooler than Sivaganga's yearly average — with higher rainfall (96 mm), so conditions are generally comfortable for sightseeing and outdoor plans.
| Year | High | Low | Avg | Rainfall | Humidity | Wind | Solar |
|---|---|---|---|---|---|---|---|
| 2025 | 29.9°C | 17.3°C | 23.6°C | 79 mm | 86% | 2.8 m/s | — |
| 2024 | 30.6°C | 20.8°C | 25.7°C | 163 mm | 87% | 2.6 m/s | 4.4 |
| 2023 | 31.0°C | 20.4°C | 25.7°C | 131 mm | 88% | 3.2 m/s | 4 |
| 2022 | 29.8°C | 19.2°C | 24.5°C | 254 mm | 87% | 2.8 m/s | 4.3 |
| 2021 | 30.6°C | 16.9°C | 23.7°C | 66 mm | 87% | 2.7 m/s | 5.1 |
| 2020 | 29.1°C | 18.6°C | 23.9°C | 265 mm | 89% | 3.3 m/s | 3.9 |
| 2019 | 29.4°C | 20.0°C | 24.7°C | 125 mm | 88% | 3 m/s | 4 |
| 2018 | 32.1°C | 18.5°C | 25.3°C | 30 mm | 82% | 2.7 m/s | 4.5 |
| 2017 | 30.9°C | 18.7°C | 24.8°C | 42 mm | 82% | 2.8 m/s | 4.8 |
| 2016 🔥 | 35.2°C | 17.8°C | 26.5°C | 65 mm | 70% | 2.8 m/s | 4.8 |
| 2015 | 29.7°C | 19.0°C | 24.4°C | 149 mm | 89% | 3 m/s | 4.2 |
| 2014 | 31.2°C | 18.6°C | 24.9°C | 57 mm | 87% | 3.2 m/s | 4 |
| 2013 | 31.5°C | 18.0°C | 24.8°C | 110 mm | 80% | 3 m/s | 4.4 |
| 2012 | 32.9°C | 18.9°C | 25.9°C | 41 mm | 78% | 3.6 m/s | 4.4 |
| 2011 | 32.2°C | 17.7°C | 24.9°C | 64 mm | 83% | 3 m/s | 4.5 |
| 2010 | 29.6°C | 17.8°C | 23.7°C | 129 mm | 89% | 2.6 m/s | 3.9 |
| 2009 | 29.6°C | 18.3°C | 24.0°C | 96 mm | 87% | 3 m/s | 4.2 |
| 2008 | 29.4°C | 16.6°C | 23.0°C | 52 mm | 87% | 2.9 m/s | 4.5 |
| 2007 | 30.8°C | 15.6°C | 23.2°C | 197 mm | 84% | 3.3 m/s | 4.2 |
| 2006 | 29.1°C | 17.2°C | 23.2°C | 29 mm | 84% | 3.5 m/s | 4.8 |
| 2005 | 29.4°C | 18.2°C | 23.8°C | 122 mm | 88% | 2.6 m/s | 4.5 |
| 2004 ❄️ | 29.0°C | 16.9°C | 22.9°C | 41 mm | 86% | 3.4 m/s | 4.5 |
| 2003 | 30.6°C | 17.5°C | 24.0°C | 8 mm | 82% | 3 m/s | 5 |
| 2002 | 31.9°C | 17.4°C | 24.7°C | 35 mm | 77% | 3.3 m/s | 4.6 |
| 2001 | 30.3°C | 17.7°C | 24.0°C | 68 mm | 83% | 3.4 m/s | 4.6 |
| 2000 | 30.2°C | 17.1°C | 23.6°C | 84 mm | 83% | 3.3 m/s | 4.8 |
| 1999 | 29.4°C | 17.6°C | 23.5°C | 51 mm | 84% | 3.2 m/s | 4.7 |
| 1998 | 30.2°C | 17.4°C | 23.8°C | 259 mm | 88% | 3.2 m/s | 4.2 |
| 1997 | 30.2°C | 19.9°C | 25.0°C | 93 mm | 88% | 2.6 m/s | 4 |
| 1996 | 35.3°C | 16.0°C | 25.6°C | 219 mm | 82% | 2.8 m/s | 4.3 |
| 1995 | 32.0°C | 18.4°C | 25.2°C | 9 mm | 70% | 3.6 m/s | 4.9 |
| 1994 | 31.2°C | 16.9°C | 24.1°C | 21 mm | 77% | 3.5 m/s | 5.1 |
| 1993 | 28.4°C | 17.5°C | 23.0°C | 210 mm | 90% | 3.4 m/s | 3.6 |
| 1992 | 28.8°C | 17.5°C | 23.1°C | 51 mm | 85% | 3.5 m/s | 4.5 |
| 1991 | 31.7°C | 17.5°C | 24.6°C | 35 mm | 81% | 3.1 m/s | 4.5 |
| 1990 | 33.1°C | 19.2°C | 26.2°C | 6 mm | 74% | 3.5 m/s | 4.3 |
| 1989 | 33.0°C | 18.8°C | 25.9°C | 45 mm | 76% | 3.4 m/s | 4.8 |
| 1988 | 34.0°C | 18.2°C | 26.1°C | 22 mm | 71% | 3.2 m/s | 4.8 |
| 1987 | 32.5°C | 18.3°C | 25.4°C | 214 mm | 85% | 2.6 m/s | 4.4 |
| 1986 | 31.7°C | 19.0°C | 25.3°C | 60 mm | 79% | 3.1 m/s | 4.6 |
| 1985 | 31.6°C | 18.4°C | 25.0°C | 60 mm | 80% | 3 m/s | 4.7 |
| 1984 | 33.4°C | 15.9°C | 24.6°C | 61 mm | 77% | 2.8 m/s | 4.9 |
| 1983 🌧️ | 29.8°C | 19.8°C | 24.8°C | 290 mm | 86% | 3.1 m/s | — |
| 1982 | 31.5°C | 19.3°C | 25.4°C | 40 mm | 77% | 3.4 m/s | — |
| 1981 | 28.8°C | 17.4°C | 23.1°C | 54 mm | 86% | 2.7 m/s | — |
Actual recorded December data for each year, 1981–2025 — sourced from NASA POWER.
The average high in December is around 30.9°C with lows near 18.1°C (mean 24.5°C), based on 45 years of NASA POWER data.
December averages 96 mm of rainfall in Sivaganga, a relatively wet time of year. The wettest on record was 290 mm in 1983.
The hottest December reached 35.3°C in 1996. The coldest dipped to 15.6°C in 2007.
Comparing the earliest years on record (1981–1985) with the most recent (2021–2025), average December temperatures have held steady by about 0°C. Daytime highs moved from 31°C to 30.4°C and overnight lows from 18.2°C to 18.9°C over the same span.
December is one of the cooler months of the year in Sivaganga and a relatively wet time of year, so plan for around 30.9°C daytime highs and 18.1°C at night.
Yes — December is the coldest month of the year in Sivaganga, averaging 24.5°C.
For December in Sivaganga, pack light, breathable clothing and sun protection, with typical highs of 30.9°C and lows of 18.1°C. Bring an umbrella or light rain jacket too.
Relative humidity in December averages 83% — quite humid.
Average wind speed in December is 3.1 m/s. The windiest December on record averaged 3.6 m/s (1995).
The wettest December on record was 1983 with 290 mm. On average, December sees 96 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 Sivaganga 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.
