December is one of the cooler months of the year in Nilgiris, with average highs near 29.2°C and lows around 12.4°C (mean 20.8°C). It is one of the drier months, averaging 32 mm of rainfall and 77% relative humidity across the period.
December is one of the cooler months of the year in Nilgiris. Across 45 years of records, the warmest December in Nilgiris was 2018 — when the month averaged 23.1°C — while the coldest was 1992 at 18.5°C. Typical December days reach 29.2°C with nights near 12.4°C. The long-term trend is warming, about 0.2°C per decade.
Ranked against the other 11 months using 1981–2025 averages.
| Metric | 1980s | 1990s | 2000s | 2010s | 2020s | Change |
|---|---|---|---|---|---|---|
| Avg Temp | 21.2°C | 20.0°C | 20.4°C | 21.5°C | 21.1°C | -0.1°C |
| Avg High | 29.8°C | 28.5°C | 29.0°C | 29.8°C | 28.8°C | -1°C |
| Avg Low | 12.5°C | 11.6°C | 11.9°C | 13.1°C | 13.4°C | +0.9°C |
| Avg Rain | 33 mm | 32 mm | 17 mm | 28 mm | 62 mm | +30 mm |
December temperatures in Nilgiris have stayed relatively stable across the record.
December has ranged from a record low of 9.4°C (1994) to a record high of 32.3°C (2003).
Rainfall in December is one of the drier months, averaging 32 mm, with a wettest year of 119 mm.
Daytime highs and overnight lows have shifted differently — highs rose about 0°C per decade while lows rose 0.4°C per decade, narrowing the gap between day and night.
One of the best times to visit Nilgiris
December is one of the best times to visit Nilgiris. Expect days averaging 29.2°C and nights around 12.4°C (mean 20.8°C) — cooler than Nilgiris's yearly average — with moderate rainfall (32 mm), so conditions are generally comfortable for sightseeing and outdoor plans.
| Year | High | Low | Avg | Rainfall | Humidity | Wind | Solar |
|---|---|---|---|---|---|---|---|
| 2025 | 30.4°C | 12.2°C | 21.3°C | 15 mm | 74% | 1.4 m/s | — |
| 2024 🌧️ | 28.2°C | 14.5°C | 21.3°C | 119 mm | 87% | 1.3 m/s | 4.3 |
| 2023 | 29.5°C | 13.6°C | 21.5°C | 58 mm | 83% | 1.4 m/s | 4.2 |
| 2022 | 28.1°C | 14.2°C | 21.2°C | 91 mm | 82% | 1.4 m/s | 4.4 |
| 2021 | 27.5°C | 12.5°C | 20.0°C | 33 mm | 87% | 1.3 m/s | 4.7 |
| 2020 | 28.9°C | 13.1°C | 21.0°C | 59 mm | 82% | 1.6 m/s | 4.4 |
| 2019 | 28.1°C | 15.2°C | 21.7°C | 55 mm | 86% | 1.6 m/s | 4.4 |
| 2018 🔥 | 31.1°C | 15.1°C | 23.1°C | 8 mm | 71% | 1.3 m/s | 4.5 |
| 2017 | 28.4°C | 12.0°C | 20.2°C | 51 mm | 79% | 1.4 m/s | 4.9 |
| 2016 | 32.0°C | 12.0°C | 22.0°C | 62 mm | 63% | 1.4 m/s | 4.9 |
| 2015 | 29.3°C | 13.4°C | 21.3°C | 29 mm | 81% | 1.7 m/s | 4.7 |
| 2014 | 30.1°C | 13.6°C | 21.9°C | 16 mm | 75% | 1.4 m/s | 4.4 |
| 2013 | 30.5°C | 12.3°C | 21.4°C | 19 mm | 72% | 1.5 m/s | 5.3 |
| 2012 | 30.9°C | 13.5°C | 22.2°C | 7 mm | 70% | 1.8 m/s | 5.1 |
| 2011 | 31.4°C | 12.0°C | 21.7°C | 13 mm | 74% | 1.6 m/s | 4.8 |
| 2010 | 26.4°C | 12.1°C | 19.3°C | 25 mm | 86% | 1.2 m/s | 4.4 |
| 2009 | 29.4°C | 13.6°C | 21.5°C | 17 mm | 79% | 1.5 m/s | 4.4 |
| 2008 | 28.1°C | 11.3°C | 19.7°C | 7 mm | 79% | 1.5 m/s | 5 |
| 2007 | 27.4°C | 13.4°C | 20.4°C | 67 mm | 81% | 1.8 m/s | 4.8 |
| 2006 | 27.6°C | 12.4°C | 20.0°C | 2 mm | 79% | 1.7 m/s | 5.4 |
| 2005 | 27.2°C | 12.1°C | 19.6°C | 25 mm | 86% | 1.2 m/s | 4.8 |
| 2004 | 28.7°C | 12.0°C | 20.4°C | 1 mm | 76% | 1.5 m/s | 5.6 |
| 2003 | 32.3°C | 11.5°C | 21.9°C | 6 mm | 68% | 1.6 m/s | 5.5 |
| 2002 | 29.7°C | 11.4°C | 20.5°C | 3 mm | 67% | 1.5 m/s | 5.3 |
| 2001 | 28.7°C | 11.0°C | 19.8°C | 14 mm | 76% | 1.7 m/s | 4.9 |
| 2000 | 30.5°C | 10.7°C | 20.6°C | 26 mm | 72% | 1.7 m/s | 5.3 |
| 1999 | 27.9°C | 12.0°C | 19.9°C | 15 mm | 77% | 1.4 m/s | 5.1 |
| 1998 | 27.6°C | 11.3°C | 19.4°C | 83 mm | 83% | 1.5 m/s | 4.4 |
| 1997 | 26.6°C | 14.8°C | 20.7°C | 50 mm | 89% | 1.4 m/s | 4.4 |
| 1996 | 30.1°C | 10.3°C | 20.2°C | 100 mm | 80% | 1.5 m/s | 4.6 |
| 1995 | 28.9°C | 11.6°C | 20.2°C | 2 mm | 70% | 1.7 m/s | 5.6 |
| 1994 | 28.9°C | 9.4°C | 19.1°C | 7 mm | 74% | 1.5 m/s | 5.4 |
| 1993 | 27.1°C | 12.1°C | 19.6°C | 51 mm | 84% | 1.6 m/s | 4.8 |
| 1992 ❄️ | 26.4°C | 10.6°C | 18.5°C | 6 mm | 81% | 1.8 m/s | 5.2 |
| 1991 | 30.5°C | 11.6°C | 21.1°C | 3 mm | 76% | 1.5 m/s | 5 |
| 1990 | 31.1°C | 12.1°C | 21.6°C | 1 mm | 70% | 1.9 m/s | 5.1 |
| 1989 | 30.3°C | 12.6°C | 21.5°C | 16 mm | 74% | 1.7 m/s | 5.2 |
| 1988 | 30.9°C | 12.0°C | 21.5°C | 13 mm | 67% | 1.6 m/s | 5.3 |
| 1987 | 29.1°C | 11.3°C | 20.2°C | 92 mm | 82% | 1.4 m/s | 4.5 |
| 1986 | 30.0°C | 13.5°C | 21.8°C | 10 mm | 73% | 1.7 m/s | 5 |
| 1985 | 30.3°C | 12.4°C | 21.4°C | 12 mm | 73% | 1.5 m/s | 5 |
| 1984 | 31.7°C | 12.5°C | 22.1°C | 39 mm | 67% | 1.4 m/s | 5.4 |
| 1983 | 29.1°C | 14.8°C | 21.9°C | 74 mm | 80% | 1.8 m/s | — |
| 1982 | 29.7°C | 12.8°C | 21.2°C | 4 mm | 71% | 1.8 m/s | — |
| 1981 | 27.0°C | 11.0°C | 19.0°C | 33 mm | 81% | 1.5 m/s | — |
Actual recorded December data for each year, 1981–2025 — sourced from NASA POWER.
The average high in December is around 29.2°C with lows near 12.4°C (mean 20.8°C), based on 45 years of NASA POWER data.
December averages 32 mm of rainfall in Nilgiris, one of the drier months. The wettest on record was 119 mm in 2024.
The hottest December reached 32.3°C in 2003. The coldest dipped to 9.4°C in 1994.
Comparing the earliest years on record (1981–1985) with the most recent (2021–2025), average December temperatures have held steady by about 0°C. Daytime highs moved from 29.6°C to 28.7°C and overnight lows from 12.7°C to 13.4°C over the same span.
December is one of the cooler months of the year in Nilgiris and one of the drier months, so plan for around 29.2°C daytime highs and 12.4°C at night.
Yes — December is the coldest month of the year in Nilgiris, averaging 20.8°C.
For December in Nilgiris, pack light layers you can adjust through the day, with typical highs of 29.2°C and lows of 12.4°C.
Relative humidity in December averages 77% — quite humid.
Average wind speed in December is 1.5 m/s. The windiest December on record averaged 1.9 m/s (1990).
The wettest December on record was 2024 with 119 mm. On average, December sees 32 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 Nilgiris 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.
