December is one of the cooler months of the year in Kolkata, with average highs near 27.7°C and lows around 7.6°C (mean 17.7°C). It is one of the drier months, averaging 12 mm of rainfall and 69% relative humidity across the period.
December is one of the cooler months of the year in Kolkata. Across 45 years of records, the warmest Decembers in Kolkata were 1982, 1983 and 1985 — when the month averaged 19.5°C — while the coldest were 2012 and 2025 at 16.1°C. Typical December days reach 27.7°C with nights near 7.6°C. The long-term trend is cooling, about 0.3°C per decade.
Ranked against the other 11 months using 1981–2025 averages.
| Metric | 1980s | 1990s | 2000s | 2010s | 2020s | Change |
|---|---|---|---|---|---|---|
| Avg Temp | 18.8°C | 17.4°C | 17.3°C | 17.2°C | 17.5°C | -1.3°C |
| Avg High | 29.3°C | 27.5°C | 26.7°C | 27.5°C | 27.2°C | -2.1°C |
| Avg Low | 8.2°C | 7.4°C | 8.0°C | 7.0°C | 7.9°C | -0.3°C |
| Avg Rain | 15 mm | 6 mm | 3 mm | 15 mm | 26 mm | +11 mm |
December temperatures in Kolkata have fallen by about 1.1°C between 1981–1985 and 2021–2025.
December has ranged from a record low of 4.7°C (2012) to a record high of 31.3°C (1983).
Rainfall in December is one of the drier months, averaging 12 mm, with a wettest year of 103 mm.
Daytime highs and overnight lows have shifted differently — highs fell about 0.5°C per decade while lows fell 0.2°C per decade, narrowing the gap between day and night.
One of the best times to visit Kolkata
December is one of the best times to visit Kolkata. Expect days averaging 27.7°C and nights around 7.6°C (mean 17.7°C) — cooler than Kolkata's yearly average — with low rainfall (12 mm), so conditions are generally comfortable for sightseeing and outdoor plans.
| Year | High | Low | Avg | Rainfall | Humidity | Wind | Solar |
|---|---|---|---|---|---|---|---|
| 2025 | 24.9°C | 7.3°C | 16.1°C | 0 mm | 82% | 1.8 m/s | — |
| 2024 | 27.0°C | 8.1°C | 17.6°C | 7 mm | 79% | 1.5 m/s | 3.4 |
| 2023 | 28.8°C | 9.0°C | 18.9°C | 43 mm | 79% | 1.8 m/s | 3.2 |
| 2022 | 28.6°C | 9.6°C | 19.1°C | 0 mm | 72% | 1.6 m/s | 3.5 |
| 2021 🌧️ | 27.1°C | 6.2°C | 16.6°C | 103 mm | 82% | 1.6 m/s | 3.1 |
| 2020 | 26.7°C | 6.9°C | 16.8°C | 0 mm | 73% | 1.4 m/s | 3.3 |
| 2019 | 27.3°C | 5.1°C | 16.2°C | 11 mm | 79% | 1.5 m/s | 3.2 |
| 2018 | 27.2°C | 5.7°C | 16.4°C | 19 mm | 68% | 1.8 m/s | 3.4 |
| 2017 | 28.1°C | 8.8°C | 18.4°C | 26 mm | 79% | 1.6 m/s | 3.4 |
| 2016 | 27.4°C | 8.9°C | 18.1°C | 0 mm | 77% | 1.6 m/s | 3.6 |
| 2015 | 29.2°C | 7.7°C | 18.5°C | 9 mm | 67% | 1.3 m/s | 2.7 |
| 2014 | 27.4°C | 6.5°C | 17.0°C | 8 mm | 68% | 1.7 m/s | 3.5 |
| 2013 | 26.5°C | 8.0°C | 17.2°C | 0 mm | 77% | 1.4 m/s | 3.7 |
| 2012 ❄️ | 27.6°C | 4.7°C | 16.1°C | 19 mm | 72% | 1.8 m/s | 3.5 |
| 2011 | 28.0°C | 7.3°C | 17.7°C | 5 mm | 73% | 1.6 m/s | 3.4 |
| 2010 | 26.7°C | 6.9°C | 16.8°C | 52 mm | 72% | 1.6 m/s | 3.5 |
| 2009 | 26.9°C | 7.5°C | 17.2°C | 1 mm | 72% | 1.4 m/s | 3.6 |
| 2008 | 28.1°C | 9.4°C | 18.7°C | 2 mm | 77% | 1.4 m/s | 3.3 |
| 2007 | 25.9°C | 6.6°C | 16.3°C | 0 mm | 77% | 1.6 m/s | 3.8 |
| 2006 | 27.8°C | 8.4°C | 18.1°C | 0 mm | 74% | 1.6 m/s | 3.7 |
| 2005 | 25.6°C | 7.0°C | 16.3°C | 5 mm | 77% | 1.6 m/s | 4 |
| 2004 | 27.0°C | 7.2°C | 17.1°C | 0 mm | 76% | 1.4 m/s | 3.8 |
| 2003 | 26.2°C | 8.2°C | 17.2°C | 17 mm | 78% | 1.8 m/s | 3.7 |
| 2002 | 27.6°C | 9.3°C | 18.5°C | 0 mm | 69% | 1.4 m/s | 3.8 |
| 2001 | 25.7°C | 8.2°C | 16.9°C | 0 mm | 73% | 1.5 m/s | 4 |
| 2000 | 25.8°C | 7.9°C | 16.8°C | 0 mm | 65% | 1.5 m/s | 4.2 |
| 1999 | 26.0°C | 7.8°C | 16.9°C | 0 mm | 75% | 1.6 m/s | 4.2 |
| 1998 | 25.9°C | 7.4°C | 16.7°C | 0 mm | 75% | 1.6 m/s | 4.2 |
| 1997 | 28.4°C | 7.8°C | 18.1°C | 14 mm | 74% | 1.9 m/s | 3.3 |
| 1996 | 27.5°C | 6.2°C | 16.9°C | 0 mm | 54% | 1.8 m/s | 3.8 |
| 1995 | 27.1°C | 7.9°C | 17.5°C | 0 mm | 72% | 1.6 m/s | 4.2 |
| 1994 | 29.6°C | 6.0°C | 17.8°C | 0 mm | 54% | 1.8 m/s | 4.3 |
| 1993 | 27.7°C | 6.9°C | 17.3°C | 0 mm | 66% | 1.7 m/s | 4.2 |
| 1992 | 28.5°C | 8.2°C | 18.3°C | 0 mm | 49% | 1.6 m/s | 4.2 |
| 1991 | 27.0°C | 7.9°C | 17.4°C | 42 mm | 68% | 1.6 m/s | 3.9 |
| 1990 | 27.4°C | 7.5°C | 17.4°C | 1 mm | 67% | 1.7 m/s | 4.1 |
| 1989 | 28.4°C | 7.9°C | 18.1°C | 5 mm | 57% | 1.6 m/s | 4.2 |
| 1988 | 29.3°C | 9.4°C | 19.4°C | 9 mm | 59% | 1.6 m/s | 4.3 |
| 1987 | 29.5°C | 8.8°C | 19.2°C | 3 mm | 59% | 1.8 m/s | 4.1 |
| 1986 | 27.7°C | 8.8°C | 18.3°C | 19 mm | 72% | 1.5 m/s | 4.1 |
| 1985 | 30.2°C | 8.8°C | 19.5°C | 0 mm | 60% | 1.8 m/s | 4.3 |
| 1984 | 30.2°C | 5.7°C | 18.0°C | 0 mm | 51% | 1.8 m/s | 4.2 |
| 1983 | 31.3°C | 7.7°C | 19.5°C | 11 mm | 46% | 1.8 m/s | — |
| 1982 🔥 | 29.9°C | 9.2°C | 19.5°C | 0 mm | 49% | 1.8 m/s | — |
| 1981 | 27.6°C | 7.6°C | 17.6°C | 90 mm | 70% | 1.9 m/s | — |
Actual recorded December data for each year, 1981–2025 — sourced from NASA POWER.
The average high in December is around 27.7°C with lows near 7.6°C (mean 17.7°C), based on 45 years of NASA POWER data.
December averages 12 mm of rainfall in Kolkata, one of the drier months. The wettest on record was 103 mm in 2021.
The hottest December reached 31.3°C in 1983. The coldest dipped to 4.7°C in 2012.
Comparing the earliest years on record (1981–1985) with the most recent (2021–2025), average December temperatures have fallen by about 1.1°C. Daytime highs moved from 29.8°C to 27.3°C and overnight lows from 7.8°C to 8°C over the same span.
December is one of the cooler months of the year in Kolkata and one of the drier months, so plan for around 27.7°C daytime highs and 7.6°C at night.
Yes — December is the coldest month of the year in Kolkata, averaging 17.7°C.
For December in Kolkata, pack warm layers and a jacket for chilly mornings, with typical highs of 27.7°C and lows of 7.6°C.
Relative humidity in December averages 69% — moderately humid.
Average wind speed in December is 1.6 m/s. The windiest December on record averaged 1.9 m/s (1981).
The wettest December on record was 2021 with 103 mm. On average, December sees 12 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 Kolkata 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.
