December is one of the cooler months of the year in Hassan, with average highs near 26.8°C and lows around 14.6°C (mean 20.7°C). It is one of the drier months, averaging 15 mm of rainfall and 75% relative humidity across the period.
December is one of the cooler months of the year in Hassan. Across 45 years of records, the warmest December in Hassan was 2023 — when the month averaged 23.6°C — while the coldest was 1992 at 18.9°C. Typical December days reach 26.8°C with nights near 14.6°C. The long-term trend is warming, about 0.3°C per decade.
December is one of the drier months in Hassan, averaging 15 mm of rainfall. The wettest December on record was 2024 with 76 mm, while the driest were 1991, 2004 and 2006 at 0 mm.
Relative humidity in Hassan during December averages 75%. The most humid December was 1997 at 84%, and the least humid was 2016 at 58%.
December receives about 5 kWh/m²/day of solar energy in Hassan. The sunniest Decembers were 1984, 1995 and 2004 at 5.6 kWh/m²/day, and the cloudiest was 2024 at 4.
Average wind speed in Hassan during December is 1.8 m/s. The windiest Decembers were 1990, 2001 and 2007, among others at 2 m/s, while the calmest was 2018 at 1.4 m/s.
Ranked against the other 11 months using 1981–2025 averages.
| Metric | 1980s | 1990s | 2000s | 2010s | 2020s | Change |
|---|---|---|---|---|---|---|
| Avg Temp | 21.0°C | 19.9°C | 20.3°C | 21.2°C | 21.6°C | +0.6°C |
| Avg High | 27.1°C | 25.9°C | 26.7°C | 27.4°C | 27.2°C | +0.1°C |
| Avg Low | 14.9°C | 13.9°C | 13.8°C | 15.1°C | 16.0°C | +1.1°C |
| Avg Rain | 17 mm | 12 mm | 8 mm | 12 mm | 33 mm | +16 mm |
December temperatures in Hassan have risen by about 0.8°C between 1981–1985 and 2021–2025.
December has ranged from a record low of 7.5°C (1994) to a record high of 32.3°C (2023).
Rainfall in December is one of the drier months, averaging 15 mm, with a wettest year of 76 mm.
One of the best times to visit Hassan
December is one of the best times to visit Hassan. Expect days averaging 26.8°C and nights around 14.6°C (mean 20.7°C) — cooler than Hassan's yearly average — with low rainfall (15 mm), so conditions are generally comfortable for sightseeing and outdoor plans.
| Year | Avg High | Avg Temp | Avg Low | Hottest Day | Coldest Day | Rainfall | Humidity | Wind | Solar |
|---|---|---|---|---|---|---|---|---|---|
| 2025 | 29.1°C | 21.9°C | 14.6°C | 30.9°C | 11.4°C | 5 mm | 66% | 1.9 m/s | — |
| 2024 🌧️ | 27.3°C | 22.4°C | 17.6°C | 29.2°C | 12.6°C | 76 mm | 82% | 1.6 m/s | 4 |
| 2023 🔥 | 30.0°C | 23.6°C | 17.2°C | 32.3°C | 13.6°C | 18 mm | 69% | 1.8 m/s | 4.4 |
| 2022 | 25.7°C | 20.7°C | 15.7°C | 27.3°C | 11.9°C | 55 mm | 82% | 1.7 m/s | 4.4 |
| 2021 | 25.1°C | 20.3°C | 15.4°C | 26.1°C | 11.5°C | 19 mm | 84% | 1.5 m/s | 4.6 |
| 2020 | 26.1°C | 20.8°C | 15.5°C | 27.6°C | 12.5°C | 22 mm | 82% | 1.8 m/s | 4.5 |
| 2019 | 27.3°C | 22.1°C | 16.9°C | 30.0°C | 14.5°C | 27 mm | 80% | 1.9 m/s | 4.5 |
| 2018 | 29.8°C | 23.1°C | 16.4°C | 31.8°C | 12.9°C | 3 mm | 61% | 1.4 m/s | 4.7 |
| 2017 | 26.4°C | 20.6°C | 14.8°C | 27.5°C | 11.8°C | 7 mm | 76% | 1.7 m/s | 5.1 |
| 2016 | 29.5°C | 21.9°C | 14.4°C | 31.5°C | 10.7°C | 43 mm | 58% | 1.7 m/s | 4.9 |
| 2015 | 28.9°C | 22.5°C | 16.1°C | 30.4°C | 10.7°C | 5 mm | 73% | 1.8 m/s | 5.1 |
| 2014 | 26.0°C | 20.5°C | 14.9°C | 27.4°C | 10.6°C | 13 mm | 78% | 1.5 m/s | 4.5 |
| 2013 | 26.2°C | 19.6°C | 13.0°C | 27.7°C | 9.2°C | 4 mm | 73% | 1.7 m/s | 5.4 |
| 2012 | 28.0°C | 21.6°C | 15.2°C | 29.8°C | 12.6°C | 7 mm | 72% | 1.8 m/s | 5 |
| 2011 | 27.4°C | 20.7°C | 14.0°C | 29.4°C | 10.8°C | 1 mm | 70% | 1.9 m/s | 4.9 |
| 2010 | 24.7°C | 19.9°C | 15.1°C | 26.1°C | 9.9°C | 8 mm | 84% | 1.5 m/s | 4.6 |
| 2009 | 25.9°C | 21.0°C | 16.1°C | 27.5°C | 12.2°C | 45 mm | 82% | 1.7 m/s | 4.4 |
| 2008 | 26.3°C | 20.0°C | 13.7°C | 27.3°C | 8.9°C | 1 mm | 77% | 1.7 m/s | 5.3 |
| 2007 | 25.3°C | 20.1°C | 14.8°C | 27.4°C | 12.1°C | 17 mm | 80% | 2 m/s | 4.7 |
| 2006 | 26.7°C | 20.2°C | 13.6°C | 28.0°C | 9.5°C | 0 mm | 74% | 1.8 m/s | 5.1 |
| 2005 | 25.1°C | 19.7°C | 14.4°C | 26.6°C | 9.6°C | 4 mm | 82% | 1.5 m/s | 5 |
| 2004 | 27.7°C | 20.2°C | 12.7°C | 29.7°C | 10.5°C | 0 mm | 69% | 1.7 m/s | 5.6 |
| 2003 | 28.5°C | 21.1°C | 13.7°C | 29.9°C | 10.2°C | 1 mm | 66% | 1.7 m/s | 5.3 |
| 2002 | 28.3°C | 20.6°C | 13.0°C | 29.6°C | 9.9°C | 1 mm | 66% | 1.7 m/s | 5.2 |
| 2001 | 26.3°C | 20.1°C | 13.8°C | 28.3°C | 10.0°C | 3 mm | 75% | 2 m/s | 5 |
| 2000 | 27.0°C | 19.8°C | 12.6°C | 29.0°C | 9.6°C | 10 mm | 71% | 1.9 m/s | 5.1 |
| 1999 | 25.6°C | 19.5°C | 13.4°C | 26.9°C | 10.5°C | 2 mm | 76% | 1.7 m/s | 5.4 |
| 1998 | 24.8°C | 19.4°C | 14.1°C | 26.5°C | 9.7°C | 25 mm | 81% | 1.8 m/s | 4.8 |
| 1997 | 26.3°C | 21.9°C | 17.4°C | 27.5°C | 15.0°C | 23 mm | 84% | 1.6 m/s | 4.9 |
| 1996 | 25.1°C | 19.5°C | 13.9°C | 26.5°C | 9.0°C | 24 mm | 78% | 1.9 m/s | 4.9 |
| 1995 | 26.4°C | 19.3°C | 12.2°C | 27.8°C | 10.3°C | 8 mm | 71% | 1.9 m/s | 5.6 |
| 1994 | 25.5°C | 19.0°C | 12.5°C | 27.3°C | 7.5°C | 3 mm | 75% | 1.6 m/s | 5.5 |
| 1993 | 25.4°C | 19.8°C | 14.2°C | 27.2°C | 11.5°C | 40 mm | 80% | 1.9 m/s | 5.2 |
| 1992 ❄️ | 25.2°C | 18.9°C | 12.6°C | 26.3°C | 9.1°C | 0 mm | 76% | 1.9 m/s | 5.5 |
| 1991 | 25.7°C | 19.7°C | 13.7°C | 28.1°C | 11.2°C | 0 mm | 78% | 1.8 m/s | 5.3 |
| 1990 | 28.8°C | 22.1°C | 15.4°C | 30.4°C | 11.7°C | 1 mm | 66% | 2 m/s | 5.3 |
| 1989 | 26.5°C | 20.7°C | 14.8°C | 28.4°C | 11.4°C | 11 mm | 77% | 1.7 m/s | 5.2 |
| 1988 | 27.3°C | 20.6°C | 13.9°C | 28.8°C | 9.8°C | 10 mm | 69% | 1.9 m/s | 5.4 |
| 1987 | 26.1°C | 20.8°C | 15.6°C | 27.7°C | 10.4°C | 50 mm | 80% | 1.9 m/s | 4.7 |
| 1986 | 27.9°C | 21.9°C | 15.9°C | 30.0°C | 11.8°C | 10 mm | 74% | 1.7 m/s | 5.2 |
| 1985 | 28.1°C | 21.7°C | 15.3°C | 30.8°C | 11.4°C | 4 mm | 69% | 1.6 m/s | 5.3 |
| 1984 | 29.2°C | 21.5°C | 13.8°C | 31.3°C | 10.5°C | 12 mm | 62% | 1.7 m/s | 5.6 |
| 1983 | 26.7°C | 21.6°C | 16.5°C | 29.1°C | 13.1°C | 39 mm | 78% | 1.9 m/s | — |
| 1982 | 26.9°C | 20.4°C | 13.8°C | 28.4°C | 11.8°C | 1 mm | 73% | 2 m/s | — |
| 1981 | 25.4°C | 19.9°C | 14.4°C | 26.7°C | 8.0°C | 14 mm | 79% | 1.8 m/s | — |
Actual recorded December data for each year, 1981–2025 — sourced from NASA POWER.
The average high in December is around 26.8°C with lows near 14.6°C (mean 20.7°C), based on 45 years of NASA POWER data.
December averages 15 mm of rainfall in Hassan, one of the drier months. The wettest on record was 76 mm in 2024.
The hottest December reached 32.3°C in 2023. The coldest dipped to 7.5°C in 1994.
Comparing the earliest years on record (1981–1985) with the most recent (2021–2025), average December temperatures have risen by about 0.8°C. Daytime highs moved from 27.3°C to 27.4°C and overnight lows from 14.8°C to 16.1°C over the same span.
December is one of the cooler months of the year in Hassan and one of the drier months, so plan for around 26.8°C daytime highs and 14.6°C at night.
Yes — December is the coldest month of the year in Hassan, averaging 20.7°C.
For December in Hassan, pack light layers you can adjust through the day, with typical highs of 26.8°C and lows of 14.6°C.
Relative humidity in December averages 75% — moderately humid.
Average wind speed in December is 1.8 m/s. The windiest December on record averaged 2 m/s (1982).
The wettest December on record was 2024 with 76 mm. On average, December sees 15 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 Hassan 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.
