December is one of the cooler months of the year in Dibang Valley, with average highs near 7.2°C and lows around -3.5°C (mean 1.9°C). It is one of the drier months, averaging 6 mm of rainfall and 75% relative humidity across the period.
December is one of the cooler months of the year in Dibang Valley. Across 45 years of records, the warmest December in Dibang Valley was 2017 — when the month averaged 4.3°C — while the coldest was 1989 at 0.6°C. Typical December days reach 7.2°C with nights near -3.5°C. The long-term trend is warming, about 0.3°C per decade.
December is one of the drier months in Dibang Valley, averaging 6 mm of rainfall. The wettest December on record was 1985 with 32 mm, while the driest were 1994, 1996 and 2005 at 0 mm.
Relative humidity in Dibang Valley during December averages 75%. The most humid December was 2022 at 85%, and the least humid was 1998 at 63%.
December receives about 3.3 kWh/m²/day of solar energy in Dibang Valley. The sunniest December was 2005 at 3.9 kWh/m²/day, and the cloudiest was 2009 at 2.7.
Average wind speed in Dibang Valley during December is 1.3 m/s. The windiest Decembers were 2012, 2014 and 2019, among others at 1.5 m/s, while the calmest was 1992 at 1.1 m/s.
Ranked against the other 11 months using 1981–2025 averages.
| Metric | 1980s | 1990s | 2000s | 2010s | 2020s | Change |
|---|---|---|---|---|---|---|
| Avg Temp | 1.4°C | 1.5°C | 2.1°C | 2.1°C | 2.3°C | +0.9°C |
| Avg High | 6.8°C | 7.0°C | 7.6°C | 7.3°C | 7.6°C | +0.8°C |
| Avg Low | -3.9°C | -3.9°C | -3.5°C | -3.0°C | -2.9°C | +1°C |
| Avg Rain | 11 mm | 4 mm | 2 mm | 4 mm | 8 mm | -3 mm |
December temperatures in Dibang Valley have risen by about 1.2°C between 1981–1985 and 2021–2025.
December has ranged from a record low of -10.9°C (1982) to a record high of 13.7°C (2016).
Rainfall in December is one of the drier months, averaging 6 mm, with a wettest year of 32 mm.
A quieter season to visit Dibang Valley
If your dates are flexible, the more temperate months of August and July tend to be the most comfortable for visiting Dibang Valley. That said, December — with days averaging 7.2°C and nights around -3.5°C (mean 1.9°C) and low rainfall (6 mm) — can still be rewarding for travellers who don't mind the cooler conditions, and often means fewer crowds.
| Year | Avg High | Avg Temp | Avg Low | Hottest Day | Coldest Day | Rainfall | Humidity | Wind | Solar |
|---|---|---|---|---|---|---|---|---|---|
| 2025 | 9.2°C | 3.2°C | -2.8°C | 12.1°C | -4.7°C | 4 mm | 76% | 1.3 m/s | — |
| 2024 | 7.2°C | 2.0°C | -3.2°C | 10.3°C | -4.5°C | 1 mm | 77% | 1.4 m/s | 3.4 |
| 2023 | 8.2°C | 2.7°C | -2.8°C | 10.5°C | -5.1°C | 9 mm | 77% | 1.4 m/s | 3.2 |
| 2022 | 7.3°C | 2.2°C | -2.9°C | 10.7°C | -6.7°C | 13 mm | 85% | 1.3 m/s | 2.8 |
| 2021 | 6.7°C | 1.9°C | -2.9°C | 12.0°C | -7.4°C | 11 mm | 80% | 1.4 m/s | 3.2 |
| 2020 | 6.8°C | 1.9°C | -3.0°C | 9.6°C | -4.9°C | 6 mm | 83% | 1.4 m/s | 3.2 |
| 2019 | 5.8°C | 1.1°C | -3.6°C | 8.9°C | -6.5°C | 2 mm | 79% | 1.5 m/s | 3 |
| 2018 | 6.4°C | 1.4°C | -3.5°C | 9.1°C | -7.0°C | 8 mm | 77% | 1.4 m/s | 3.4 |
| 2017 🔥 | 10.0°C | 4.3°C | -1.5°C | 13.3°C | -3.6°C | 0 mm | 81% | 1.3 m/s | 3.6 |
| 2016 | 9.5°C | 3.8°C | -2.0°C | 13.7°C | -4.5°C | 4 mm | 73% | 1.4 m/s | 3.5 |
| 2015 | 5.7°C | 1.1°C | -3.4°C | 11.1°C | -8.8°C | 8 mm | 82% | 1.4 m/s | 2.8 |
| 2014 | 7.8°C | 2.7°C | -2.3°C | 11.6°C | -5.2°C | 1 mm | 81% | 1.5 m/s | 3.1 |
| 2013 | 6.0°C | 1.1°C | -3.7°C | 10.7°C | -8.3°C | 2 mm | 80% | 1.3 m/s | 3 |
| 2012 | 7.0°C | 2.1°C | -2.8°C | 12.1°C | -5.0°C | 5 mm | 81% | 1.5 m/s | 3 |
| 2011 | 7.3°C | 2.1°C | -3.0°C | 11.2°C | -5.0°C | 8 mm | 77% | 1.4 m/s | 3.2 |
| 2010 | 7.2°C | 1.5°C | -4.2°C | 10.2°C | -7.8°C | 2 mm | 70% | 1.3 m/s | 3.7 |
| 2009 | 6.9°C | 1.7°C | -3.6°C | 11.1°C | -6.2°C | 3 mm | 78% | 1.3 m/s | 2.7 |
| 2008 | 8.9°C | 3.1°C | -2.8°C | 12.7°C | -6.1°C | 1 mm | 73% | 1.3 m/s | 3.2 |
| 2007 | 8.0°C | 2.2°C | -3.6°C | 10.7°C | -5.9°C | 2 mm | 69% | 1.3 m/s | 3.4 |
| 2006 | 8.0°C | 2.2°C | -3.5°C | 11.5°C | -5.2°C | 4 mm | 74% | 1.4 m/s | 3.2 |
| 2005 | 8.4°C | 2.4°C | -3.5°C | 11.7°C | -5.4°C | 0 mm | 69% | 1.3 m/s | 3.9 |
| 2004 | 7.2°C | 1.8°C | -3.5°C | 10.8°C | -9.0°C | 5 mm | 73% | 1.3 m/s | 3.3 |
| 2003 | 6.5°C | 1.3°C | -3.8°C | 11.6°C | -8.2°C | 2 mm | 76% | 1.3 m/s | 3.3 |
| 2002 | 7.0°C | 1.7°C | -3.6°C | 11.3°C | -7.0°C | 1 mm | 72% | 1.2 m/s | 3.3 |
| 2001 | 7.3°C | 1.7°C | -3.9°C | 10.8°C | -5.7°C | 2 mm | 70% | 1.3 m/s | 3.4 |
| 2000 | 8.1°C | 2.4°C | -3.3°C | 11.7°C | -5.9°C | 1 mm | 64% | 1.2 m/s | 3.6 |
| 1999 | 7.1°C | 1.7°C | -3.6°C | 10.3°C | -7.1°C | 1 mm | 74% | 1.2 m/s | 3.6 |
| 1998 | 7.8°C | 1.9°C | -4.1°C | 11.6°C | -8.7°C | 9 mm | 63% | 1.3 m/s | 3.7 |
| 1997 | 6.5°C | 1.3°C | -3.9°C | 9.0°C | -7.0°C | 10 mm | 76% | 1.2 m/s | 3.1 |
| 1996 | 7.9°C | 2.1°C | -3.7°C | 9.7°C | -5.3°C | 0 mm | 68% | 1.3 m/s | 3.8 |
| 1995 | 6.2°C | 1.1°C | -3.9°C | 8.5°C | -6.1°C | 7 mm | 83% | 1.3 m/s | 2.9 |
| 1994 | 7.0°C | 1.2°C | -4.5°C | 9.8°C | -7.6°C | 0 mm | 68% | 1.3 m/s | 3.5 |
| 1993 | 7.9°C | 2.2°C | -3.4°C | 12.0°C | -6.4°C | 0 mm | 71% | 1.3 m/s | 3.4 |
| 1992 | 5.8°C | 0.7°C | -4.4°C | 9.9°C | -8.5°C | 1 mm | 68% | 1.1 m/s | 3.7 |
| 1991 | 5.7°C | 0.9°C | -4.0°C | 11.3°C | -10.2°C | 15 mm | 71% | 1.3 m/s | 3.3 |
| 1990 | 8.2°C | 2.3°C | -3.5°C | 10.0°C | -5.1°C | 1 mm | 77% | 1.3 m/s | 3.4 |
| 1989 ❄️ | 5.9°C | 0.6°C | -4.6°C | 10.5°C | -10.7°C | 7 mm | 69% | 1.2 m/s | 3.6 |
| 1988 | 8.3°C | 2.7°C | -2.9°C | 13.4°C | -4.6°C | 3 mm | 77% | 1.3 m/s | 3.5 |
| 1987 | 8.4°C | 2.5°C | -3.3°C | 13.0°C | -6.7°C | 7 mm | 68% | 1.4 m/s | 3.7 |
| 1986 | 6.0°C | 0.9°C | -4.1°C | 11.3°C | -10.0°C | 7 mm | 73% | 1.3 m/s | 3.3 |
| 1985 🌧️ | 7.2°C | 1.6°C | -4.0°C | 11.2°C | -8.9°C | 32 mm | 77% | 1.3 m/s | 3.3 |
| 1984 | 6.6°C | 1.3°C | -4.0°C | 9.6°C | -5.8°C | 11 mm | 78% | 1.5 m/s | 3.2 |
| 1983 | 6.3°C | 1.0°C | -4.4°C | 10.7°C | -9.4°C | 12 mm | 74% | 1.3 m/s | — |
| 1982 | 5.9°C | 0.8°C | -4.3°C | 10.2°C | -10.9°C | 5 mm | 78% | 1.5 m/s | — |
| 1981 | 6.5°C | 1.4°C | -3.8°C | 10.7°C | -5.4°C | 13 mm | 79% | 1.3 m/s | — |
Actual recorded December data for each year, 1981–2025 — sourced from NASA POWER.
The average high in December is around 7.2°C with lows near -3.5°C (mean 1.9°C), based on 45 years of NASA POWER data.
December averages 6 mm of rainfall in Dibang Valley, one of the drier months. The wettest on record was 32 mm in 1985.
The hottest December reached 13.7°C in 2016. The coldest dipped to -10.9°C in 1982.
Comparing the earliest years on record (1981–1985) with the most recent (2021–2025), average December temperatures have risen by about 1.2°C. Daytime highs moved from 6.5°C to 7.7°C and overnight lows from -4.1°C to -2.9°C over the same span.
December is one of the cooler months of the year in Dibang Valley and one of the drier months, so plan for around 7.2°C daytime highs and -3.5°C at night.
Not quite — December is the 3rd coolest month in Dibang Valley, averaging 1.9°C.
For December in Dibang Valley, pack warm layers and a jacket for chilly mornings, with typical highs of 7.2°C and lows of -3.5°C.
Relative humidity in December averages 75% — moderately humid.
Average wind speed in December is 1.3 m/s. The windiest December on record averaged 1.5 m/s (1982).
The wettest December on record was 1985 with 32 mm. On average, December sees 6 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 Dibang Valley 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.
