December is one of the cooler months of the year in Ranchi, with average highs near 26.5°C and lows around 6.1°C (mean 16.3°C). It is one of the drier months, averaging 11 mm of rainfall and 62% relative humidity across the period.
December is one of the cooler months of the year in Ranchi. Across 45 years of records, the warmest December in Ranchi was 1988 — when the month averaged 18.5°C — while the coldest was 2019 at 13.4°C. Typical December days reach 26.5°C with nights near 6.1°C. The long-term trend is cooling, about 0.4°C per decade.
Ranked against the other 11 months using 1981–2025 averages.
| Metric | 1980s | 1990s | 2000s | 2010s | 2020s | Change |
|---|---|---|---|---|---|---|
| Avg Temp | 17.3°C | 16.2°C | 16.6°C | 15.7°C | 15.5°C | -1.8°C |
| Avg High | 28.0°C | 26.0°C | 26.5°C | 26.2°C | 25.6°C | -2.4°C |
| Avg Low | 6.6°C | 6.3°C | 6.7°C | 5.2°C | 5.4°C | -1.2°C |
| Avg Rain | 13 mm | 13 mm | 4 mm | 12 mm | 15 mm | +2 mm |
December temperatures in Ranchi have fallen by about 1.5°C between 1981–1985 and 2021–2025.
December has ranged from a record low of 2.5°C (2019) to a record high of 29.6°C (2015).
Rainfall in December is one of the drier months, averaging 11 mm, with a wettest year of 62 mm.
A good time to visit Ranchi
December is a good time to visit Ranchi, with days averaging 26.5°C and nights around 6.1°C (mean 16.3°C, cooler than Ranchi's yearly average) and low rainfall. February and October are marginally more temperate, but December still suits most travellers.
| Year | High | Low | Avg | Rainfall | Humidity | Wind | Solar |
|---|---|---|---|---|---|---|---|
| 2025 | 23.2°C | 4.3°C | 13.7°C | 0 mm | 80% | 1.4 m/s | — |
| 2024 | 26.2°C | 5.8°C | 16.0°C | 5 mm | 73% | 1.4 m/s | 3.4 |
| 2023 | 27.1°C | 6.2°C | 16.6°C | 56 mm | 73% | 1.3 m/s | 3.3 |
| 2022 | 26.7°C | 7.0°C | 16.9°C | 0 mm | 66% | 1.5 m/s | 3.5 |
| 2021 | 24.2°C | 3.5°C | 13.8°C | 28 mm | 79% | 1.5 m/s | 3.2 |
| 2020 | 26.2°C | 5.3°C | 15.7°C | 1 mm | 68% | 1.4 m/s | 3.2 |
| 2019 ❄️ | 24.3°C | 2.5°C | 13.4°C | 21 mm | 82% | 1.4 m/s | 3 |
| 2018 | 25.4°C | 3.7°C | 14.5°C | 52 mm | 62% | 1.5 m/s | 3.3 |
| 2017 | 26.1°C | 6.8°C | 16.5°C | 1 mm | 64% | 1.4 m/s | 3.7 |
| 2016 | 25.8°C | 6.8°C | 16.3°C | 0 mm | 70% | 1.5 m/s | 3.8 |
| 2015 | 29.6°C | 6.6°C | 18.1°C | 5 mm | 58% | 1.3 m/s | 2.9 |
| 2014 | 27.3°C | 4.0°C | 15.7°C | 8 mm | 54% | 1.6 m/s | 3.6 |
| 2013 | 24.3°C | 7.3°C | 15.8°C | 0 mm | 74% | 1.3 m/s | 3.5 |
| 2012 | 26.5°C | 2.9°C | 14.7°C | 10 mm | 66% | 1.9 m/s | 3.7 |
| 2011 | 26.7°C | 5.4°C | 16.0°C | 1 mm | 67% | 1 m/s | 3.6 |
| 2010 | 26.0°C | 5.8°C | 15.9°C | 26 mm | 61% | 1.4 m/s | 3.5 |
| 2009 | 27.0°C | 7.3°C | 17.2°C | 6 mm | 61% | 1.3 m/s | 3.6 |
| 2008 | 27.6°C | 7.8°C | 17.7°C | 0 mm | 70% | 1.1 m/s | 3.4 |
| 2007 | 25.2°C | 5.8°C | 15.5°C | 0 mm | 66% | 1.6 m/s | 3.8 |
| 2006 | 27.0°C | 7.4°C | 17.2°C | 0 mm | 65% | 1.5 m/s | 3.7 |
| 2005 | 27.5°C | 6.5°C | 17.0°C | 16 mm | 53% | 1.5 m/s | 3.9 |
| 2004 | 25.7°C | 5.2°C | 15.5°C | 2 mm | 66% | 1.2 m/s | 3.6 |
| 2003 | 24.3°C | 5.5°C | 14.9°C | 14 mm | 75% | 1.3 m/s | 3.9 |
| 2002 | 27.3°C | 7.4°C | 17.3°C | 3 mm | 57% | 1.5 m/s | 3.9 |
| 2001 | 26.8°C | 7.1°C | 16.9°C | 0 mm | 55% | 1.4 m/s | 4 |
| 2000 | 26.5°C | 6.5°C | 16.5°C | 0 mm | 48% | 1.5 m/s | 4.3 |
| 1999 | 24.2°C | 7.3°C | 15.8°C | 0 mm | 65% | 1.3 m/s | 4 |
| 1998 | 24.5°C | 5.4°C | 15.0°C | 0 mm | 64% | 1.4 m/s | 4.1 |
| 1997 | 25.7°C | 6.1°C | 15.9°C | 43 mm | 80% | 1.4 m/s | 3.2 |
| 1996 | 26.4°C | 5.0°C | 15.7°C | 0 mm | 47% | 1.6 m/s | 3.7 |
| 1995 | 27.1°C | 8.1°C | 17.6°C | 29 mm | 66% | 1.5 m/s | 3.8 |
| 1994 | 26.5°C | 5.6°C | 16.1°C | 0 mm | 54% | 1.4 m/s | 4.2 |
| 1993 | 25.8°C | 6.1°C | 16.0°C | 0 mm | 54% | 1.3 m/s | 4.1 |
| 1992 | 27.3°C | 7.4°C | 17.4°C | 0 mm | 43% | 1.5 m/s | 4.1 |
| 1991 | 26.9°C | 6.1°C | 16.5°C | 58 mm | 62% | 1.4 m/s | 3.9 |
| 1990 | 25.7°C | 6.1°C | 15.9°C | 0 mm | 62% | 1.5 m/s | 4.2 |
| 1989 | 28.3°C | 6.6°C | 17.4°C | 17 mm | 47% | 1.5 m/s | 4.1 |
| 1988 🔥 | 29.4°C | 7.5°C | 18.5°C | 3 mm | 53% | 1.4 m/s | 4.1 |
| 1987 | 27.8°C | 7.2°C | 17.5°C | 5 mm | 64% | 1.4 m/s | 4.1 |
| 1986 🌧️ | 27.8°C | 7.4°C | 17.6°C | 62 mm | 60% | 1.4 m/s | 3.7 |
| 1985 | 27.5°C | 5.8°C | 16.6°C | 1 mm | 65% | 1.6 m/s | 4.3 |
| 1984 | 29.4°C | 4.9°C | 17.1°C | 0 mm | 49% | 1.8 m/s | 4.2 |
| 1983 | 28.3°C | 5.7°C | 17.0°C | 17 mm | 48% | 1.4 m/s | — |
| 1982 | 27.9°C | 7.8°C | 17.9°C | 0 mm | 51% | 1.9 m/s | — |
| 1981 | 25.3°C | 6.4°C | 15.9°C | 12 mm | 65% | 1.6 m/s | — |
Actual recorded December data for each year, 1981–2025 — sourced from NASA POWER.
The average high in December is around 26.5°C with lows near 6.1°C (mean 16.3°C), based on 45 years of NASA POWER data.
December averages 11 mm of rainfall in Ranchi, one of the drier months. The wettest on record was 62 mm in 1986.
The hottest December reached 29.6°C in 2015. The coldest dipped to 2.5°C in 2019.
Comparing the earliest years on record (1981–1985) with the most recent (2021–2025), average December temperatures have fallen by about 1.5°C. Daytime highs moved from 27.7°C to 25.5°C and overnight lows from 6.1°C to 5.4°C over the same span.
December is one of the cooler months of the year in Ranchi and one of the drier months, so plan for around 26.5°C daytime highs and 6.1°C at night.
Yes — December is the coldest month of the year in Ranchi, averaging 16.3°C.
For December in Ranchi, pack warm layers and a jacket for chilly mornings, with typical highs of 26.5°C and lows of 6.1°C.
Relative humidity in December averages 62% — moderately humid.
Average wind speed in December is 1.4 m/s. The windiest December on record averaged 1.9 m/s (1982).
The wettest December on record was 1986 with 62 mm. On average, December sees 11 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 Ranchi 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.
