December is one of the cooler months of the year in Thrissur, with average highs near 32.2°C and lows around 19°C (mean 25.6°C). It is one of the drier months, averaging 41 mm of rainfall and 74% relative humidity across the period.
December is one of the cooler months of the year in Thrissur. Across 45 years of records, the warmest December in Thrissur was 2016 — when the month averaged 28.2°C — while the coldest was 1992 at 23.8°C. Typical December days reach 32.2°C with nights near 19°C. The long-term December temperature trend is broadly flat.
Ranked against the other 11 months using 1981–2025 averages.
| Metric | 1980s | 1990s | 2000s | 2010s | 2020s | Change |
|---|---|---|---|---|---|---|
| Avg Temp | 26.2°C | 25.1°C | 25.0°C | 26.1°C | 25.5°C | -0.7°C |
| Avg High | 33.0°C | 31.7°C | 32.1°C | 32.4°C | 31.3°C | -1.7°C |
| Avg Low | 19.4°C | 18.4°C | 18.0°C | 19.7°C | 19.7°C | +0.3°C |
| Avg Rain | 39 mm | 46 mm | 19 mm | 36 mm | 79 mm | +40 mm |
December temperatures in Thrissur have fallen by about 0.9°C between 1981–1985 and 2021–2025.
December has ranged from a record low of 17.1°C (1992) to a record high of 35.3°C (2016).
Rainfall in December is one of the drier months, averaging 41 mm, with a wettest year of 150 mm.
Daytime highs and overnight lows have shifted differently — highs fell about 0.2°C per decade while lows rose 0.2°C per decade, narrowing the gap between day and night.
One of the best times to visit Thrissur
December is one of the best times to visit Thrissur. Expect days averaging 32.2°C and nights around 19°C (mean 25.6°C) — cooler than Thrissur's yearly average — with moderate rainfall (41 mm), so conditions are generally comfortable for sightseeing and outdoor plans.
| Year | High | Low | Avg | Rainfall | Humidity | Wind | Solar |
|---|---|---|---|---|---|---|---|
| 2025 | 31.6°C | 18.9°C | 25.2°C | 22 mm | 75% | 1.8 m/s | — |
| 2024 | 31.5°C | 20.8°C | 26.2°C | 123 mm | 82% | 1.8 m/s | 4.5 |
| 2023 | 31.3°C | 20.5°C | 25.9°C | 97 mm | 83% | 2 m/s | 4.5 |
| 2022 | 31.0°C | 19.9°C | 25.5°C | 125 mm | 78% | 1.6 m/s | 4.4 |
| 2021 | 30.2°C | 18.6°C | 24.4°C | 34 mm | 81% | 1.8 m/s | 5 |
| 2020 | 32.3°C | 19.7°C | 26.0°C | 75 mm | 78% | 1.9 m/s | 4.4 |
| 2019 | 31.6°C | 21.5°C | 26.5°C | 60 mm | 80% | 2 m/s | 4.7 |
| 2018 | 33.0°C | 21.5°C | 27.2°C | 19 mm | 74% | 1.5 m/s | 4.6 |
| 2017 | 32.2°C | 18.8°C | 25.5°C | 39 mm | 76% | 1.9 m/s | 5 |
| 2016 🔥 | 35.3°C | 21.0°C | 28.2°C | 40 mm | 70% | 1.7 m/s | 4.8 |
| 2015 | 32.3°C | 19.6°C | 25.9°C | 50 mm | 79% | 1.8 m/s | 4.7 |
| 2014 | 31.6°C | 19.4°C | 25.5°C | 21 mm | 76% | 1.8 m/s | 4.5 |
| 2013 | 31.8°C | 18.8°C | 25.3°C | 41 mm | 73% | 1.8 m/s | 5 |
| 2012 | 34.2°C | 20.1°C | 27.1°C | 10 mm | 69% | 1.8 m/s | 4.9 |
| 2011 | 32.8°C | 17.9°C | 25.4°C | 38 mm | 73% | 1.9 m/s | 4.8 |
| 2010 | 29.4°C | 18.4°C | 23.9°C | 42 mm | 81% | 1.5 m/s | 4.6 |
| 2009 | 32.2°C | 18.9°C | 25.5°C | 20 mm | 77% | 1.7 m/s | 4.7 |
| 2008 | 32.6°C | 17.5°C | 25.1°C | 16 mm | 71% | 1.8 m/s | 4.9 |
| 2007 | 31.8°C | 18.1°C | 24.9°C | 42 mm | 75% | 2.1 m/s | 4.8 |
| 2006 | 31.1°C | 18.4°C | 24.7°C | 0 mm | 76% | 2.3 m/s | 5.1 |
| 2005 | 29.8°C | 18.4°C | 24.1°C | 32 mm | 80% | 1.7 m/s | 4.9 |
| 2004 | 32.2°C | 17.9°C | 25.0°C | 1 mm | 73% | 2.2 m/s | 5.3 |
| 2003 | 33.4°C | 18.2°C | 25.8°C | 47 mm | 68% | 1.8 m/s | 5.4 |
| 2002 | 31.8°C | 17.7°C | 24.7°C | 1 mm | 71% | 1.9 m/s | 5.1 |
| 2001 | 32.5°C | 17.7°C | 25.1°C | 10 mm | 73% | 1.9 m/s | 5 |
| 2000 | 33.6°C | 17.1°C | 25.3°C | 21 mm | 68% | 2 m/s | 5.2 |
| 1999 | 31.6°C | 18.3°C | 25.0°C | 24 mm | 73% | 1.9 m/s | 5.1 |
| 1998 | 30.9°C | 18.0°C | 24.4°C | 87 mm | 79% | 1.9 m/s | 4.5 |
| 1997 | 30.7°C | 21.1°C | 25.9°C | 96 mm | 83% | 1.6 m/s | 4.7 |
| 1996 🌧️ | 30.9°C | 17.2°C | 24.0°C | 150 mm | 78% | 1.8 m/s | 4.6 |
| 1995 | 32.3°C | 18.4°C | 25.3°C | 1 mm | 66% | 2.1 m/s | 5.4 |
| 1994 | 32.8°C | 17.2°C | 25.0°C | 5 mm | 69% | 2.1 m/s | 5.2 |
| 1993 | 30.8°C | 18.5°C | 24.7°C | 73 mm | 79% | 2 m/s | 4.8 |
| 1992 ❄️ | 30.6°C | 17.1°C | 23.8°C | 8 mm | 76% | 2.3 m/s | 5.1 |
| 1991 | 32.6°C | 18.1°C | 25.4°C | 11 mm | 70% | 2 m/s | 5.1 |
| 1990 | 34.2°C | 19.9°C | 27.0°C | 2 mm | 68% | 2.1 m/s | 5 |
| 1989 | 33.2°C | 19.2°C | 26.2°C | 22 mm | 71% | 2 m/s | 5.2 |
| 1988 | 33.7°C | 19.3°C | 26.5°C | 39 mm | 66% | 1.9 m/s | 5.3 |
| 1987 | 30.0°C | 18.9°C | 24.4°C | 87 mm | 80% | 1.7 m/s | 4.7 |
| 1986 | 34.0°C | 20.2°C | 27.1°C | 9 mm | 68% | 1.8 m/s | 5.1 |
| 1985 | 33.7°C | 19.0°C | 26.4°C | 49 mm | 71% | 1.7 m/s | 5 |
| 1984 | 34.2°C | 18.3°C | 26.2°C | 49 mm | 68% | 1.5 m/s | 5.2 |
| 1983 | 32.7°C | 20.6°C | 26.6°C | 69 mm | 76% | 2 m/s | — |
| 1982 | 34.5°C | 20.1°C | 27.3°C | 5 mm | 64% | 2.2 m/s | — |
| 1981 | 30.8°C | 19.1°C | 24.9°C | 26 mm | 76% | 1.8 m/s | — |
Actual recorded December data for each year, 1981–2025 — sourced from NASA POWER.
The average high in December is around 32.2°C with lows near 19°C (mean 25.6°C), based on 45 years of NASA POWER data.
December averages 41 mm of rainfall in Thrissur, one of the drier months. The wettest on record was 150 mm in 1996.
The hottest December reached 35.3°C in 2016. The coldest dipped to 17.1°C in 1992.
Comparing the earliest years on record (1981–1985) with the most recent (2021–2025), average December temperatures have fallen by about 0.9°C. Daytime highs moved from 33.2°C to 31.1°C and overnight lows from 19.4°C to 19.7°C over the same span.
December is one of the cooler months of the year in Thrissur and one of the drier months, so plan for around 32.2°C daytime highs and 19°C at night.
Yes — December is the coldest month of the year in Thrissur, averaging 25.6°C.
For December in Thrissur, pack light, breathable clothing and sun protection, with typical highs of 32.2°C and lows of 19°C.
Relative humidity in December averages 74% — moderately humid.
Average wind speed in December is 1.9 m/s. The windiest December on record averaged 2.3 m/s (1992).
The wettest December on record was 1996 with 150 mm. On average, December sees 41 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 Thrissur 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.
