December is one of the cooler months of the year in Shimla, with average highs near 20.1°C and lows around 7.8°C (mean 14°C). It is one of the drier months, averaging 12 mm of rainfall and 41% relative humidity across the period.
December is one of the cooler months of the year in Shimla. Across 45 years of records, the warmest December in Shimla was 2016 — when the month averaged 16.1°C — while the coldest was 2019 at 11.8°C. Typical December days reach 20.1°C with nights near 7.8°C. The long-term December temperature trend is broadly flat.
December is one of the drier months in Shimla, averaging 12 mm of rainfall. The wettest December on record was 1989 with 79 mm, while the driest were 1999, 2009 and 2025, among others at 0 mm.
Relative humidity in Shimla during December averages 41%. The most humid December was 2022 at 56%, and the least humid was 1987 at 18%.
December receives about 3.2 kWh/m²/day of solar energy in Shimla. The sunniest December was 1999 at 3.7 kWh/m²/day, and the cloudiest was 1997 at 2.7.
Average wind speed in Shimla during December is 1.6 m/s. The windiest December was 1990 at 1.9 m/s, while the calmest were 2019, 2021 and 2025, among others at 1.4 m/s.
Ranked against the other 11 months using 1981–2025 averages.
| Metric | 1980s | 1990s | 2000s | 2010s | 2020s | Change |
|---|---|---|---|---|---|---|
| Avg Temp | 13.7°C | 13.9°C | 14.6°C | 13.7°C | 13.8°C | +0.1°C |
| Avg High | 20.0°C | 20.2°C | 20.9°C | 19.6°C | 19.6°C | -0.4°C |
| Avg Low | 7.4°C | 7.6°C | 8.2°C | 7.9°C | 8.0°C | +0.6°C |
| Avg Rain | 17 mm | 7 mm | 7 mm | 18 mm | 12 mm | -5 mm |
December temperatures in Shimla have stayed relatively stable across the record.
December has ranged from a record low of -0.1°C (2019) to a record high of 26.3°C (1998).
Rainfall in December is one of the drier months, averaging 12 mm, with a wettest year of 79 mm.
Daytime highs and overnight lows have shifted differently — highs fell about 0.1°C per decade while lows rose 0.2°C per decade, narrowing the gap between day and night.
A good time to visit Shimla
December is a good time to visit Shimla, with days averaging 20.1°C and nights around 7.8°C (mean 14°C, cooler than Shimla's yearly average) and low rainfall. October and April are marginally more temperate, but December still suits most travellers.
| Year | Avg High | Avg Temp | Avg Low | Hottest Day | Coldest Day | Rainfall | Humidity | Wind | Solar |
|---|---|---|---|---|---|---|---|---|---|
| 2025 | 19.5°C | 14.0°C | 8.6°C | 22.5°C | 6.2°C | 0 mm | 53% | 1.4 m/s | — |
| 2024 | 19.2°C | 13.3°C | 7.4°C | 22.9°C | 3.8°C | 41 mm | 48% | 1.6 m/s | 3.1 |
| 2023 | 19.8°C | 14.3°C | 8.7°C | 23.0°C | 5.9°C | 4 mm | 54% | 1.5 m/s | 3.3 |
| 2022 | 19.7°C | 14.0°C | 8.3°C | 23.2°C | 4.9°C | 2 mm | 56% | 1.5 m/s | 3.4 |
| 2021 | 18.5°C | 13.0°C | 7.4°C | 23.7°C | 2.2°C | 10 mm | 52% | 1.4 m/s | 3.1 |
| 2020 | 20.6°C | 14.1°C | 7.7°C | 24.9°C | 2.7°C | 17 mm | 42% | 1.5 m/s | 3.3 |
| 2019 ❄️ | 17.6°C | 11.8°C | 6.0°C | 22.1°C | -0.1°C | 34 mm | 51% | 1.4 m/s | 3.1 |
| 2018 | 17.5°C | 11.9°C | 6.4°C | 20.0°C | 1.7°C | 10 mm | 54% | 1.5 m/s | 3.3 |
| 2017 | 21.2°C | 15.0°C | 8.9°C | 25.2°C | 5.9°C | 21 mm | 43% | 1.6 m/s | 3.1 |
| 2016 🔥 | 22.3°C | 16.1°C | 9.8°C | 25.0°C | 7.1°C | 6 mm | 31% | 1.6 m/s | 3.5 |
| 2015 | 20.0°C | 14.2°C | 8.5°C | 24.5°C | 2.9°C | 18 mm | 43% | 1.7 m/s | 3.1 |
| 2014 | 19.8°C | 13.8°C | 7.8°C | 24.4°C | 4.5°C | 25 mm | 40% | 1.6 m/s | 3.1 |
| 2013 | 19.3°C | 13.7°C | 8.1°C | 24.5°C | 3.4°C | 7 mm | 47% | 1.6 m/s | 3.3 |
| 2012 | 20.0°C | 14.3°C | 8.6°C | 24.1°C | 5.1°C | 20 mm | 44% | 1.7 m/s | 3 |
| 2011 | 19.8°C | 13.8°C | 7.8°C | 23.5°C | 5.0°C | 7 mm | 42% | 1.5 m/s | 3.4 |
| 2010 | 18.4°C | 12.8°C | 7.2°C | 21.7°C | 4.1°C | 31 mm | 52% | 1.5 m/s | 3.3 |
| 2009 | 20.1°C | 14.0°C | 7.9°C | 23.2°C | 4.0°C | 0 mm | 37% | 1.5 m/s | 2.9 |
| 2008 | 21.5°C | 15.6°C | 9.7°C | 24.1°C | 5.6°C | 2 mm | 47% | 1.5 m/s | 3.2 |
| 2007 | 20.3°C | 13.8°C | 7.4°C | 24.9°C | 3.8°C | 4 mm | 36% | 1.6 m/s | 3.1 |
| 2006 | 20.3°C | 14.1°C | 7.8°C | 24.0°C | 5.0°C | 16 mm | 45% | 1.7 m/s | 2.9 |
| 2005 | 20.8°C | 14.0°C | 7.3°C | 22.8°C | 4.3°C | 0 mm | 32% | 1.6 m/s | 3.5 |
| 2004 | 21.0°C | 14.8°C | 8.7°C | 24.2°C | 3.2°C | 9 mm | 40% | 1.8 m/s | 3.1 |
| 2003 | 20.0°C | 14.2°C | 8.3°C | 24.3°C | 3.0°C | 17 mm | 48% | 1.7 m/s | 2.9 |
| 2002 | 21.0°C | 14.7°C | 8.4°C | 24.0°C | 4.3°C | 7 mm | 38% | 1.6 m/s | 3.2 |
| 2001 | 21.5°C | 15.0°C | 8.6°C | 24.8°C | 5.6°C | 10 mm | 33% | 1.7 m/s | 3 |
| 2000 | 22.3°C | 15.3°C | 8.3°C | 23.7°C | 4.9°C | 3 mm | 25% | 1.7 m/s | 3.3 |
| 1999 | 21.6°C | 14.8°C | 8.0°C | 24.0°C | 5.5°C | 0 mm | 21% | 1.6 m/s | 3.7 |
| 1998 | 21.5°C | 15.0°C | 8.4°C | 26.3°C | 5.8°C | 0 mm | 31% | 1.5 m/s | 3.5 |
| 1997 | 17.4°C | 12.0°C | 6.6°C | 21.0°C | 3.3°C | 32 mm | 55% | 1.4 m/s | 2.7 |
| 1996 | 20.5°C | 13.6°C | 6.8°C | 21.9°C | 3.2°C | 1 mm | 33% | 1.6 m/s | 3.5 |
| 1995 | 19.8°C | 13.7°C | 7.5°C | 21.5°C | 5.9°C | 4 mm | 42% | 1.6 m/s | 2.9 |
| 1994 | 19.5°C | 13.5°C | 7.5°C | 22.1°C | 2.0°C | 7 mm | 41% | 1.7 m/s | 3.4 |
| 1993 | 22.0°C | 14.9°C | 7.9°C | 25.8°C | 4.8°C | 0 mm | 25% | 1.6 m/s | 3.6 |
| 1992 | 20.7°C | 14.3°C | 7.9°C | 22.7°C | 5.4°C | 1 mm | 39% | 1.7 m/s | 3.4 |
| 1991 | 19.4°C | 13.7°C | 7.9°C | 23.7°C | 2.0°C | 26 mm | 45% | 1.6 m/s | 3.1 |
| 1990 | 19.9°C | 13.8°C | 7.8°C | 22.5°C | 0.6°C | 1 mm | 40% | 1.9 m/s | 3 |
| 1989 🌧️ | 19.6°C | 13.5°C | 7.3°C | 23.5°C | 3.8°C | 79 mm | 41% | 1.6 m/s | 3 |
| 1988 | 20.1°C | 14.2°C | 8.3°C | 23.7°C | 5.5°C | 28 mm | 44% | 1.7 m/s | 3.1 |
| 1987 | 22.4°C | 15.5°C | 8.5°C | 25.4°C | 6.0°C | 4 mm | 18% | 1.6 m/s | 3.3 |
| 1986 | 19.1°C | 12.9°C | 6.7°C | 23.3°C | 3.5°C | 8 mm | 38% | 1.8 m/s | 2.9 |
| 1985 | 20.0°C | 13.9°C | 7.8°C | 24.1°C | 3.9°C | 20 mm | 46% | 1.8 m/s | 3 |
| 1984 | 19.7°C | 13.4°C | 7.0°C | 23.7°C | 3.6°C | 2 mm | 35% | 1.8 m/s | 3.3 |
| 1983 | 20.0°C | 13.6°C | 7.1°C | 23.5°C | 2.8°C | 2 mm | 32% | 1.6 m/s | — |
| 1982 | 20.4°C | 14.1°C | 7.7°C | 23.5°C | 3.3°C | 9 mm | 38% | 1.7 m/s | — |
| 1981 | 18.8°C | 12.5°C | 6.1°C | 21.7°C | 4.2°C | 2 mm | 41% | 1.5 m/s | — |
Actual recorded December data for each year, 1981–2025 — sourced from NASA POWER.
The average high in December is around 20.1°C with lows near 7.8°C (mean 14°C), based on 45 years of NASA POWER data.
December averages 12 mm of rainfall in Shimla, one of the drier months. The wettest on record was 79 mm in 1989.
The hottest December reached 26.3°C in 1998. The coldest dipped to -0.1°C in 2019.
Comparing the earliest years on record (1981–1985) with the most recent (2021–2025), average December temperatures have risen by about 0.2°C — but days and nights have moved in opposite directions. Overnight lows rose from 7.1°C to 8.1°C while daytime highs eased from 19.8°C to 19.3°C, narrowing the gap between day and night.
December is one of the cooler months of the year in Shimla and one of the drier months, so plan for around 20.1°C daytime highs and 7.8°C at night.
Not quite — December is the 2nd coolest month in Shimla, averaging 14°C.
For December in Shimla, pack warm layers and a jacket for chilly mornings, with typical highs of 20.1°C and lows of 7.8°C.
Relative humidity in December averages 41% — relatively dry.
Average wind speed in December is 1.6 m/s. The windiest December on record averaged 1.9 m/s (1990).
The wettest December on record was 1989 with 79 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 Shimla 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.
