December is one of the cooler months of the year in Dehradun, with average highs near 20.9°C and lows around 2°C (mean 11.5°C). It is one of the drier months, averaging 10 mm of rainfall and 44% relative humidity across the period.
December is one of the cooler months of the year in Dehradun. Across 45 years of records, the warmest December in Dehradun was 1987 — when the month averaged 13.5°C — while the coldest was 2019 at 8.3°C. Typical December days reach 20.9°C with nights near 2°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 | 11.4°C | 11.4°C | 11.7°C | 11.2°C | 11.6°C | +0.2°C |
| Avg High | 21.1°C | 20.5°C | 21.5°C | 20.8°C | 20.5°C | -0.6°C |
| Avg Low | 1.6°C | 2.3°C | 1.8°C | 1.6°C | 2.6°C | +1°C |
| Avg Rain | 12 mm | 8 mm | 7 mm | 15 mm | 11 mm | -1 mm |
December temperatures in Dehradun have risen by about 0.7°C between 1981–1985 and 2021–2025.
December has ranged from a record low of -2.1°C (2019) to a record high of 23.1°C (1987).
Rainfall in December is one of the drier months, averaging 10 mm, with a wettest year of 50 mm.
A quieter season to visit Dehradun
If your dates are flexible, the more temperate months of April and May tend to be the most comfortable for visiting Dehradun. That said, December — with days averaging 20.9°C and nights around 2°C (mean 11.5°C) and low rainfall (10 mm) — can still be rewarding for travellers who don't mind the cooler conditions, and often means fewer crowds.
| Year | High | Low | Avg | Rainfall | Humidity | Wind | Solar |
|---|---|---|---|---|---|---|---|
| 2025 | 21.1°C | 5.0°C | 13.0°C | 0 mm | 48% | 1.2 m/s | — |
| 2024 | 20.1°C | 2.5°C | 11.3°C | 37 mm | 52% | 1.3 m/s | 3.5 |
| 2023 | 20.4°C | 4.0°C | 12.2°C | 3 mm | 55% | 1.2 m/s | 3.6 |
| 2022 | 20.5°C | 2.1°C | 11.3°C | 1 mm | 54% | 1.2 m/s | 3.7 |
| 2021 | 19.4°C | 0.1°C | 9.7°C | 8 mm | 58% | 1.1 m/s | 3.3 |
| 2020 | 21.8°C | 2.0°C | 11.9°C | 14 mm | 40% | 1.3 m/s | 3.7 |
| 2019 ❄️ | 18.6°C | -2.1°C | 8.3°C | 33 mm | 51% | 1.2 m/s | 3.4 |
| 2018 | 18.0°C | -1.0°C | 8.5°C | 6 mm | 55% | 1.2 m/s | 3.7 |
| 2017 | 22.5°C | 3.8°C | 13.2°C | 20 mm | 48% | 1.3 m/s | 3.5 |
| 2016 | 23.1°C | 3.7°C | 13.4°C | 4 mm | 35% | 1.3 m/s | 3.9 |
| 2015 | 22.0°C | 1.6°C | 11.8°C | 12 mm | 47% | 1.4 m/s | 3.6 |
| 2014 | 23.1°C | 2.6°C | 12.8°C | 26 mm | 40% | 1.3 m/s | 3.5 |
| 2013 | 19.7°C | 0.6°C | 10.2°C | 6 mm | 54% | 1.3 m/s | 3.7 |
| 2012 | 22.2°C | 3.1°C | 12.6°C | 15 mm | 52% | 1.3 m/s | 3.3 |
| 2011 | 20.2°C | 3.4°C | 11.8°C | 6 mm | 46% | 1.3 m/s | 3.8 |
| 2010 | 18.7°C | 0.5°C | 9.6°C | 25 mm | 53% | 1.2 m/s | 3.6 |
| 2009 | 19.5°C | 2.3°C | 10.9°C | 0 mm | 42% | 1.3 m/s | 3.4 |
| 2008 | 22.5°C | 3.6°C | 13.1°C | 0 mm | 48% | 1.2 m/s | 3.6 |
| 2007 | 23.0°C | 0.2°C | 11.6°C | 4 mm | 43% | 1.3 m/s | 3.5 |
| 2006 | 21.6°C | 2.3°C | 11.9°C | 19 mm | 45% | 1.3 m/s | 3.3 |
| 2005 | 19.9°C | 1.9°C | 10.9°C | 1 mm | 40% | 1.3 m/s | 3.8 |
| 2004 | 21.5°C | 1.2°C | 11.3°C | 6 mm | 44% | 1.3 m/s | 3.4 |
| 2003 | 21.1°C | 0.4°C | 10.8°C | 18 mm | 52% | 1.3 m/s | 3.3 |
| 2002 | 21.4°C | 2.1°C | 11.8°C | 11 mm | 36% | 1.4 m/s | 3.6 |
| 2001 | 21.3°C | 3.1°C | 12.2°C | 7 mm | 39% | 1.3 m/s | 3.5 |
| 2000 | 23.0°C | 1.0°C | 12.0°C | 1 mm | 24% | 1.4 m/s | 3.7 |
| 1999 | 21.3°C | 3.7°C | 12.5°C | 1 mm | 25% | 1.4 m/s | 3.7 |
| 1998 | 21.5°C | 3.4°C | 12.5°C | 0 mm | 45% | 1.2 m/s | 3.9 |
| 1997 🌧️ | 18.2°C | 0.6°C | 9.4°C | 50 mm | 59% | 1.2 m/s | 3.2 |
| 1996 | 19.1°C | 3.8°C | 11.4°C | 0 mm | 37% | 1.2 m/s | 3.8 |
| 1995 | 19.3°C | 2.6°C | 11.0°C | 6 mm | 45% | 1.3 m/s | 3.2 |
| 1994 | 19.9°C | 1.0°C | 10.4°C | 2 mm | 42% | 1.4 m/s | 3.6 |
| 1993 | 21.3°C | 2.7°C | 12.0°C | 0 mm | 35% | 1.3 m/s | 3.6 |
| 1992 | 20.7°C | 3.9°C | 12.3°C | 0 mm | 34% | 1.4 m/s | 3.6 |
| 1991 | 22.8°C | 0.0°C | 11.4°C | 19 mm | 50% | 1.3 m/s | 3.2 |
| 1990 | 20.7°C | 1.4°C | 11.1°C | 5 mm | 43% | 1.5 m/s | 3.3 |
| 1989 | 21.7°C | 0.5°C | 11.1°C | 40 mm | 41% | 1.3 m/s | 3.3 |
| 1988 | 21.5°C | 2.3°C | 11.9°C | 15 mm | 45% | 1.3 m/s | 3.3 |
| 1987 🔥 | 23.1°C | 3.8°C | 13.5°C | 4 mm | 18% | 1.3 m/s | 3.5 |
| 1986 | 21.7°C | 1.5°C | 11.6°C | 8 mm | 39% | 1.5 m/s | 3.1 |
| 1985 | 19.4°C | 1.5°C | 10.4°C | 21 mm | 53% | 1.2 m/s | 3.3 |
| 1984 | 22.6°C | 2.2°C | 12.4°C | 1 mm | 37% | 1.5 m/s | 3.3 |
| 1983 | 20.2°C | 0.6°C | 10.4°C | 4 mm | 35% | 1.4 m/s | — |
| 1982 | 20.9°C | 0.7°C | 10.8°C | 8 mm | 37% | 1.4 m/s | — |
| 1981 | 18.4°C | 1.7°C | 10.1°C | 4 mm | 41% | 1.3 m/s | — |
Actual recorded December data for each year, 1981–2025 — sourced from NASA POWER.
The average high in December is around 20.9°C with lows near 2°C (mean 11.5°C), based on 45 years of NASA POWER data.
December averages 10 mm of rainfall in Dehradun, one of the drier months. The wettest on record was 50 mm in 1997.
The hottest December reached 23.1°C in 1987. The coldest dipped to -2.1°C in 2019.
Comparing the earliest years on record (1981–1985) with the most recent (2021–2025), average December temperatures have risen by about 0.7°C. Daytime highs moved from 20.3°C to 20.3°C and overnight lows from 1.3°C to 2.7°C over the same span.
December is one of the cooler months of the year in Dehradun and one of the drier months, so plan for around 20.9°C daytime highs and 2°C at night.
Not quite — December is the 2nd coolest month in Dehradun, averaging 11.5°C.
For December in Dehradun, pack warm layers and a jacket for chilly mornings, with typical highs of 20.9°C and lows of 2°C.
Relative humidity in December averages 44% — relatively dry.
Average wind speed in December is 1.3 m/s. The windiest December on record averaged 1.5 m/s (1984).
The wettest December on record was 1997 with 50 mm. On average, December sees 10 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 Dehradun 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.
