December is one of the cooler months of the year in Hassan, with average highs near 28.5°C and lows around 11°C (mean 19.8°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°C — while the coldest were 1981 and 1994 at 17.4°C. Typical December days reach 28.5°C with nights near 11°C. The long-term trend is warming, about 0.3°C per decade.
Ranked against the other 11 months using 1981–2025 averages.
| Metric | 1980s | 1990s | 2000s | 2010s | 2020s | Change |
|---|---|---|---|---|---|---|
| Avg Temp | 20.0°C | 19.0°C | 19.3°C | 20.3°C | 20.6°C | +0.6°C |
| Avg High | 29.0°C | 27.5°C | 28.3°C | 29.2°C | 28.9°C | -0.1°C |
| Avg Low | 10.9°C | 10.6°C | 10.3°C | 11.4°C | 12.3°C | +1.4°C |
| Avg Rain | 17 mm | 12 mm | 8 mm | 12 mm | 33 mm | +16 mm |
December temperatures in Hassan have risen by about 0.6°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.
Daytime highs and overnight lows have shifted differently — highs rose about 0.2°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 Hassan
December is one of the best times to visit Hassan. Expect days averaging 28.5°C and nights around 11°C (mean 19.8°C) — cooler than Hassan's yearly average — with low rainfall (15 mm), so conditions are generally comfortable for sightseeing and outdoor plans.
| Year | High | Low | Avg | Rainfall | Humidity | Wind | Solar |
|---|---|---|---|---|---|---|---|
| 2025 | 30.9°C | 11.4°C | 21.2°C | 5 mm | 66% | 1.9 m/s | — |
| 2024 🌧️ | 29.2°C | 12.6°C | 20.9°C | 76 mm | 82% | 1.6 m/s | 4 |
| 2023 🔥 | 32.3°C | 13.6°C | 23.0°C | 18 mm | 69% | 1.8 m/s | 4.4 |
| 2022 | 27.3°C | 11.9°C | 19.6°C | 55 mm | 82% | 1.7 m/s | 4.4 |
| 2021 | 26.1°C | 11.5°C | 18.8°C | 19 mm | 84% | 1.5 m/s | 4.6 |
| 2020 | 27.6°C | 12.5°C | 20.0°C | 22 mm | 82% | 1.8 m/s | 4.5 |
| 2019 | 30.0°C | 14.5°C | 22.2°C | 27 mm | 80% | 1.9 m/s | 4.5 |
| 2018 | 31.8°C | 12.9°C | 22.3°C | 3 mm | 61% | 1.4 m/s | 4.7 |
| 2017 | 27.5°C | 11.8°C | 19.7°C | 7 mm | 76% | 1.7 m/s | 5.1 |
| 2016 | 31.5°C | 10.7°C | 21.1°C | 43 mm | 58% | 1.7 m/s | 4.9 |
| 2015 | 30.4°C | 10.7°C | 20.5°C | 5 mm | 73% | 1.8 m/s | 5.1 |
| 2014 | 27.4°C | 10.6°C | 19.0°C | 13 mm | 78% | 1.5 m/s | 4.5 |
| 2013 | 27.7°C | 9.2°C | 18.5°C | 4 mm | 73% | 1.7 m/s | 5.4 |
| 2012 | 29.8°C | 12.6°C | 21.2°C | 7 mm | 72% | 1.8 m/s | 5 |
| 2011 | 29.4°C | 10.8°C | 20.1°C | 1 mm | 70% | 1.9 m/s | 4.9 |
| 2010 | 26.1°C | 9.9°C | 18.0°C | 8 mm | 84% | 1.5 m/s | 4.6 |
| 2009 | 27.5°C | 12.2°C | 19.9°C | 45 mm | 82% | 1.7 m/s | 4.4 |
| 2008 | 27.3°C | 8.9°C | 18.1°C | 1 mm | 77% | 1.7 m/s | 5.3 |
| 2007 | 27.4°C | 12.1°C | 19.7°C | 17 mm | 80% | 2 m/s | 4.7 |
| 2006 | 28.0°C | 9.5°C | 18.8°C | 0 mm | 74% | 1.8 m/s | 5.1 |
| 2005 | 26.6°C | 9.6°C | 18.1°C | 4 mm | 82% | 1.5 m/s | 5 |
| 2004 | 29.7°C | 10.5°C | 20.1°C | 0 mm | 69% | 1.7 m/s | 5.6 |
| 2003 | 29.9°C | 10.2°C | 20.0°C | 1 mm | 66% | 1.7 m/s | 5.3 |
| 2002 | 29.6°C | 9.9°C | 19.8°C | 1 mm | 66% | 1.7 m/s | 5.2 |
| 2001 | 28.3°C | 10.0°C | 19.2°C | 3 mm | 75% | 2 m/s | 5 |
| 2000 | 29.0°C | 9.6°C | 19.3°C | 10 mm | 71% | 1.9 m/s | 5.1 |
| 1999 | 26.9°C | 10.5°C | 18.7°C | 2 mm | 76% | 1.7 m/s | 5.4 |
| 1998 | 26.5°C | 9.7°C | 18.1°C | 25 mm | 81% | 1.8 m/s | 4.8 |
| 1997 | 27.5°C | 15.0°C | 21.2°C | 23 mm | 84% | 1.6 m/s | 4.9 |
| 1996 | 26.5°C | 9.0°C | 17.7°C | 24 mm | 78% | 1.9 m/s | 4.9 |
| 1995 | 27.8°C | 10.3°C | 19.0°C | 8 mm | 71% | 1.9 m/s | 5.6 |
| 1994 | 27.3°C | 7.5°C | 17.4°C | 3 mm | 75% | 1.6 m/s | 5.5 |
| 1993 | 27.2°C | 11.5°C | 19.4°C | 40 mm | 80% | 1.9 m/s | 5.2 |
| 1992 | 26.3°C | 9.1°C | 17.7°C | 0 mm | 76% | 1.9 m/s | 5.5 |
| 1991 | 28.1°C | 11.2°C | 19.6°C | 0 mm | 78% | 1.8 m/s | 5.3 |
| 1990 | 30.4°C | 11.7°C | 21.1°C | 1 mm | 66% | 2 m/s | 5.3 |
| 1989 | 28.4°C | 11.4°C | 19.9°C | 11 mm | 77% | 1.7 m/s | 5.2 |
| 1988 | 28.8°C | 9.8°C | 19.3°C | 10 mm | 69% | 1.9 m/s | 5.4 |
| 1987 | 27.7°C | 10.4°C | 19.1°C | 50 mm | 80% | 1.9 m/s | 4.7 |
| 1986 | 30.0°C | 11.8°C | 20.9°C | 10 mm | 74% | 1.7 m/s | 5.2 |
| 1985 | 30.8°C | 11.4°C | 21.1°C | 4 mm | 69% | 1.6 m/s | 5.3 |
| 1984 | 31.3°C | 10.5°C | 20.9°C | 12 mm | 62% | 1.7 m/s | 5.6 |
| 1983 | 29.1°C | 13.1°C | 21.1°C | 39 mm | 78% | 1.9 m/s | — |
| 1982 | 28.4°C | 11.8°C | 20.1°C | 1 mm | 73% | 2 m/s | — |
| 1981 ❄️ | 26.7°C | 8.0°C | 17.4°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 28.5°C with lows near 11°C (mean 19.8°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 0.6°C. Daytime highs moved from 29.3°C to 29.2°C and overnight lows from 11°C to 12.2°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 28.5°C daytime highs and 11°C at night.
Yes — December is the coldest month of the year in Hassan, averaging 19.8°C.
For December in Hassan, pack light layers you can adjust through the day, with typical highs of 28.5°C and lows of 11°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.
