December is one of the cooler months of the year in Cuddalore, with average highs near 27.3°C and lows around 23.9°C (mean 25.6°C). It is a relatively wet time of year, averaging 134 mm of rainfall and 80% relative humidity across the period.
December is one of the cooler months of the year in Cuddalore. Across 45 years of records, the warmest Decembers in Cuddalore were 1997, 2023 and 2024 — when the month averaged 26.5°C — while the coldest were 1994 and 1996 at 24.7°C. Typical December days reach 27.3°C with nights near 23.9°C. The long-term trend is warming, about 0.2°C per decade.
December is a relatively wet time of year in Cuddalore, averaging 134 mm of rainfall. The wettest December on record was 1996 with 403 mm, while the driest was 1995 at 11 mm.
Relative humidity in Cuddalore during December averages 80%. The most humid December was 2024 at 85%, and the least humid was 1995 at 72%.
December receives about 4.2 kWh/m²/day of solar energy in Cuddalore. The sunniest December was 2003 at 4.8 kWh/m²/day, and the cloudiest were 1993, 2009 and 2010 at 3.5.
Average wind speed in Cuddalore during December is 4.5 m/s. The windiest Decembers were 1993 and 1998 at 5 m/s, while the calmest was 1997 at 3.8 m/s.
Ranked against the other 11 months using 1981–2025 averages.
| Metric | 1980s | 1990s | 2000s | 2010s | 2020s | Change |
|---|---|---|---|---|---|---|
| Avg Temp | 25.5°C | 25.3°C | 25.5°C | 25.8°C | 26.0°C | +0.5°C |
| Avg High | 27.2°C | 27.0°C | 27.2°C | 27.5°C | 27.6°C | +0.4°C |
| Avg Low | 23.8°C | 23.7°C | 23.7°C | 24.1°C | 24.5°C | +0.7°C |
| Avg Rain | 124 mm | 160 mm | 114 mm | 125 mm | 155 mm | +31 mm |
December temperatures in Cuddalore have risen by about 0.8°C between 1981–1985 and 2021–2025.
December has ranged from a record low of 20.2°C (2007) to a record high of 29.9°C (2016).
Rainfall in December is a relatively wet time of year, averaging 134 mm, with a wettest year of 403 mm.
One of the best times to visit Cuddalore
December is one of the best times to visit Cuddalore. Expect days averaging 27.3°C and nights around 23.9°C (mean 25.6°C) — cooler than Cuddalore's yearly average — with higher rainfall (134 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 | 27.2°C | 25.4°C | 23.6°C | 28.3°C | 22.1°C | 87 mm | 79% | 4.4 m/s | — |
| 2024 | 28.0°C | 26.5°C | 24.9°C | 29.1°C | 22.2°C | 216 mm | 85% | 4.4 m/s | 3.8 |
| 2023 | 28.1°C | 26.5°C | 25.0°C | 29.8°C | 23.2°C | 121 mm | 84% | 4.9 m/s | 3.6 |
| 2022 | 27.5°C | 26.0°C | 24.5°C | 28.7°C | 22.6°C | 135 mm | 84% | 4.5 m/s | 3.9 |
| 2021 | 27.6°C | 26.0°C | 24.4°C | 29.3°C | 21.3°C | 86 mm | 80% | 4 m/s | 4.5 |
| 2020 | 27.2°C | 25.8°C | 24.4°C | 28.1°C | 22.8°C | 287 mm | 82% | 4.6 m/s | 3.6 |
| 2019 | 27.8°C | 26.4°C | 24.9°C | 28.8°C | 23.7°C | 106 mm | 81% | 4.3 m/s | 4.1 |
| 2018 | 27.6°C | 25.8°C | 23.9°C | 28.7°C | 21.8°C | 78 mm | 81% | 4.2 m/s | 4.2 |
| 2017 | 27.4°C | 25.7°C | 24.0°C | 28.2°C | 21.6°C | 67 mm | 80% | 4.2 m/s | 4.3 |
| 2016 | 28.3°C | 25.9°C | 23.5°C | 29.9°C | 21.7°C | 104 mm | 75% | 4.3 m/s | 4.4 |
| 2015 | 27.5°C | 26.1°C | 24.6°C | 28.2°C | 22.6°C | 234 mm | 82% | 4.2 m/s | 3.8 |
| 2014 | 27.0°C | 25.5°C | 23.9°C | 27.9°C | 22.1°C | 118 mm | 83% | 4.8 m/s | 3.6 |
| 2013 | 27.5°C | 25.5°C | 23.5°C | 28.8°C | 21.3°C | 86 mm | 76% | 4.5 m/s | 4.4 |
| 2012 | 27.6°C | 26.0°C | 24.5°C | 28.5°C | 23.3°C | 84 mm | 81% | 4.5 m/s | 4.4 |
| 2011 | 27.4°C | 25.8°C | 24.1°C | 28.8°C | 20.9°C | 131 mm | 79% | 4.8 m/s | 4.2 |
| 2010 | 26.8°C | 25.4°C | 24.0°C | 28.7°C | 21.4°C | 238 mm | 83% | 4.4 m/s | 3.5 |
| 2009 | 27.3°C | 25.9°C | 24.5°C | 28.1°C | 23.1°C | 196 mm | 82% | 4.4 m/s | 3.5 |
| 2008 | 27.1°C | 25.5°C | 23.8°C | 27.7°C | 21.3°C | 49 mm | 79% | 4 m/s | 4.3 |
| 2007 | 26.9°C | 25.3°C | 23.7°C | 28.1°C | 20.2°C | 231 mm | 82% | 4.2 m/s | 4 |
| 2006 | 27.3°C | 25.7°C | 24.1°C | 28.1°C | 22.0°C | 68 mm | 77% | 4.5 m/s | 4.4 |
| 2005 | 26.6°C | 25.1°C | 23.5°C | 27.6°C | 21.6°C | 230 mm | 85% | 4.9 m/s | 4.1 |
| 2004 | 27.1°C | 25.2°C | 23.3°C | 27.9°C | 21.4°C | 35 mm | 77% | 4.5 m/s | 4.6 |
| 2003 | 27.7°C | 25.8°C | 23.8°C | 28.7°C | 21.7°C | 37 mm | 77% | 4.5 m/s | 4.8 |
| 2002 | 27.1°C | 25.1°C | 23.2°C | 27.9°C | 21.5°C | 67 mm | 80% | 4.2 m/s | 4.7 |
| 2001 | 27.1°C | 25.5°C | 23.9°C | 28.2°C | 22.1°C | 145 mm | 78% | 4.8 m/s | 4.1 |
| 2000 | 27.3°C | 25.4°C | 23.5°C | 28.8°C | 21.3°C | 79 mm | 78% | 4.7 m/s | 4.4 |
| 1999 | 27.0°C | 25.1°C | 23.2°C | 28.1°C | 21.4°C | 110 mm | 79% | 4.7 m/s | 4.4 |
| 1998 | 27.3°C | 25.6°C | 24.0°C | 28.8°C | 22.0°C | 252 mm | 80% | 5 m/s | 3.7 |
| 1997 🔥 | 27.8°C | 26.5°C | 25.3°C | 28.8°C | 24.1°C | 281 mm | 83% | 3.8 m/s | 3.9 |
| 1996 🌧️ | 26.3°C | 24.7°C | 23.1°C | 28.3°C | 20.6°C | 403 mm | 81% | 4.5 m/s | 3.9 |
| 1995 | 27.5°C | 25.5°C | 23.5°C | 28.2°C | 22.3°C | 11 mm | 72% | 4.6 m/s | 4.6 |
| 1994 ❄️ | 26.6°C | 24.7°C | 22.8°C | 27.3°C | 21.1°C | 132 mm | 76% | 4.4 m/s | 4.6 |
| 1993 | 26.6°C | 25.2°C | 23.7°C | 27.5°C | 21.8°C | 277 mm | 83% | 5 m/s | 3.5 |
| 1992 | 26.8°C | 25.1°C | 23.5°C | 27.7°C | 21.7°C | 85 mm | 77% | 4.8 m/s | 4.3 |
| 1991 | 26.8°C | 25.2°C | 23.6°C | 27.7°C | 22.5°C | 29 mm | 80% | 4.1 m/s | 4.3 |
| 1990 | 27.4°C | 25.8°C | 24.2°C | 28.0°C | 22.3°C | 22 mm | 80% | 4.9 m/s | 4.3 |
| 1989 | 26.9°C | 25.3°C | 23.7°C | 28.0°C | 22.5°C | 83 mm | 79% | 4.2 m/s | 4.5 |
| 1988 | 27.4°C | 25.6°C | 23.7°C | 28.5°C | 22.3°C | 58 mm | 78% | 4.3 m/s | 4.7 |
| 1987 | 27.4°C | 25.9°C | 24.5°C | 29.2°C | 21.7°C | 286 mm | 83% | 4.9 m/s | 3.6 |
| 1986 | 27.7°C | 26.1°C | 24.4°C | 28.4°C | 23.0°C | 90 mm | 81% | 4.4 m/s | 4.2 |
| 1985 | 26.7°C | 25.0°C | 23.3°C | 27.5°C | 21.7°C | 106 mm | 83% | 4.1 m/s | 4.5 |
| 1984 | 27.1°C | 25.1°C | 23.1°C | 28.0°C | 21.2°C | 67 mm | 79% | 4 m/s | 4.7 |
| 1983 | 26.8°C | 25.5°C | 24.1°C | 27.5°C | 21.9°C | 286 mm | 84% | 4.6 m/s | — |
| 1982 | 27.6°C | 25.8°C | 24.0°C | 28.3°C | 22.7°C | 39 mm | 76% | 4.6 m/s | — |
| 1981 | 26.9°C | 25.2°C | 23.5°C | 27.9°C | 20.9°C | 102 mm | 81% | 4.4 m/s | — |
Actual recorded December data for each year, 1981–2025 — sourced from NASA POWER.
The average high in December is around 27.3°C with lows near 23.9°C (mean 25.6°C), based on 45 years of NASA POWER data.
December averages 134 mm of rainfall in Cuddalore, a relatively wet time of year. The wettest on record was 403 mm in 1996.
The hottest December reached 29.9°C in 2016. The coldest dipped to 20.2°C in 2007.
Comparing the earliest years on record (1981–1985) with the most recent (2021–2025), average December temperatures have risen by about 0.8°C. Daytime highs moved from 27°C to 27.7°C and overnight lows from 23.6°C to 24.5°C over the same span.
December is one of the cooler months of the year in Cuddalore and a relatively wet time of year, so plan for around 27.3°C daytime highs and 23.9°C at night.
Not quite — December is the 2nd coolest month in Cuddalore, averaging 25.6°C.
For December in Cuddalore, pack light layers you can adjust through the day, with typical highs of 27.3°C and lows of 23.9°C. Bring an umbrella or light rain jacket too.
Relative humidity in December averages 80% — quite humid.
Average wind speed in December is 4.5 m/s. The windiest December on record averaged 5 m/s (1993).
The wettest December on record was 1996 with 403 mm. On average, December sees 134 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 Cuddalore 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.
