December is close to Kottayam's year-round average, with average highs near 30.8°C and lows around 24.2°C (mean 27.5°C). It is one of the drier months, averaging 61 mm of rainfall and 70% relative humidity across the period.
December is close to Kottayam's year-round average. Across 45 years of records, the warmest Decembers in Kottayam were 2019, 2023 and 2024, among others — when the month averaged 28.5°C — while the coldest was 1992 at 26°C. Typical December days reach 30.8°C with nights near 24.2°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 | 27.7°C | 27.1°C | 27.1°C | 27.8°C | 28.1°C | +0.4°C |
| Avg High | 31.0°C | 30.5°C | 30.6°C | 31.0°C | 31.2°C | +0.2°C |
| Avg Low | 24.3°C | 23.7°C | 23.6°C | 24.6°C | 24.9°C | +0.6°C |
| Avg Rain | 61 mm | 71 mm | 29 mm | 58 mm | 102 mm | +41 mm |
December temperatures in Kottayam have risen by about 0.4°C between 1981–1985 and 2021–2025.
December has ranged from a record low of 21.9°C (1992) to a record high of 32.3°C (2016).
Rainfall in December is one of the drier months, averaging 61 mm, with a wettest year of 211 mm.
One of the best times to visit Kottayam
December is one of the best times to visit Kottayam. Expect days averaging 30.8°C and nights around 24.2°C (mean 27.5°C) — close to Kottayam's yearly average — with moderate rainfall (61 mm), so conditions are generally comfortable for sightseeing and outdoor plans.
| Year | High | Low | Avg | Rainfall | Humidity | Wind | Solar |
|---|---|---|---|---|---|---|---|
| 2025 | 31.2°C | 22.9°C | 27.1°C | 14 mm | 69% | 1.8 m/s | — |
| 2024 | 31.1°C | 26.0°C | 28.5°C | 147 mm | 76% | 2.6 m/s | 4.8 |
| 2023 | 31.8°C | 25.1°C | 28.5°C | 159 mm | 75% | 2.1 m/s | 4.9 |
| 2022 | 31.1°C | 25.4°C | 28.3°C | 134 mm | 72% | 2.1 m/s | 4.8 |
| 2021 | 30.9°C | 25.0°C | 27.9°C | 59 mm | 71% | 1.7 m/s | 5.5 |
| 2020 | 31.1°C | 25.1°C | 28.1°C | 100 mm | 72% | 2 m/s | 4.6 |
| 2019 | 31.5°C | 25.5°C | 28.5°C | 59 mm | 73% | 2 m/s | 4.9 |
| 2018 | 31.3°C | 25.2°C | 28.2°C | 31 mm | 72% | 1.9 m/s | 4.9 |
| 2017 | 30.7°C | 23.3°C | 27.0°C | 50 mm | 72% | 2.4 m/s | 5.2 |
| 2016 🔥 | 32.3°C | 24.8°C | 28.5°C | 21 mm | 72% | 2.6 m/s | 4.9 |
| 2015 | 30.8°C | 24.3°C | 27.5°C | 88 mm | 73% | 1.9 m/s | 4.9 |
| 2014 | 30.8°C | 25.5°C | 28.1°C | 31 mm | 72% | 1.9 m/s | 4.6 |
| 2013 | 29.9°C | 23.7°C | 26.8°C | 44 mm | 69% | 2.2 m/s | 5 |
| 2012 | 31.6°C | 24.7°C | 28.2°C | 17 mm | 69% | 2 m/s | 5 |
| 2011 | 31.2°C | 23.9°C | 27.5°C | 150 mm | 69% | 2.2 m/s | 4.8 |
| 2010 | 30.0°C | 24.9°C | 27.4°C | 92 mm | 75% | 2 m/s | 4.6 |
| 2009 | 31.0°C | 24.2°C | 27.6°C | 18 mm | 72% | 2.1 m/s | 5 |
| 2008 | 30.4°C | 23.5°C | 26.9°C | 27 mm | 68% | 1.7 m/s | 5.1 |
| 2007 | 30.4°C | 24.3°C | 27.4°C | 19 mm | 68% | 2.2 m/s | 4.9 |
| 2006 | 30.5°C | 22.9°C | 26.7°C | 1 mm | 66% | 2.3 m/s | 5.3 |
| 2005 | 30.0°C | 24.2°C | 27.1°C | 64 mm | 74% | 2.4 m/s | 5 |
| 2004 | 30.5°C | 23.3°C | 26.9°C | 4 mm | 67% | 2 m/s | 5.4 |
| 2003 | 30.8°C | 23.9°C | 27.3°C | 102 mm | 66% | 2 m/s | 5.5 |
| 2002 | 30.9°C | 23.4°C | 27.2°C | 1 mm | 67% | 1.8 m/s | 5 |
| 2001 | 30.7°C | 23.5°C | 27.1°C | 12 mm | 68% | 1.8 m/s | 5.4 |
| 2000 | 30.8°C | 22.9°C | 26.9°C | 39 mm | 66% | 2.4 m/s | 5.1 |
| 1999 | 30.2°C | 24.0°C | 27.1°C | 36 mm | 69% | 2 m/s | 5.5 |
| 1998 | 30.7°C | 24.3°C | 27.5°C | 105 mm | 74% | 2.3 m/s | 4.6 |
| 1997 | 31.0°C | 25.8°C | 28.4°C | 164 mm | 77% | 1.9 m/s | 4.6 |
| 1996 🌧️ | 29.6°C | 23.6°C | 26.6°C | 211 mm | 73% | 2.3 m/s | 4.6 |
| 1995 | 30.2°C | 23.4°C | 26.8°C | 0 mm | 62% | 2.1 m/s | 5.5 |
| 1994 | 31.1°C | 23.3°C | 27.2°C | 6 mm | 65% | 1.8 m/s | 5.4 |
| 1993 | 30.1°C | 23.8°C | 27.0°C | 140 mm | 73% | 1.9 m/s | 4.7 |
| 1992 ❄️ | 30.0°C | 21.9°C | 26.0°C | 17 mm | 67% | 2.1 m/s | 5.3 |
| 1991 | 30.4°C | 23.6°C | 27.0°C | 24 mm | 69% | 2 m/s | 5 |
| 1990 | 31.8°C | 23.5°C | 27.7°C | 7 mm | 68% | 2.2 m/s | 5 |
| 1989 | 31.0°C | 23.6°C | 27.3°C | 25 mm | 68% | 2.2 m/s | 5.4 |
| 1988 | 31.2°C | 24.2°C | 27.7°C | 74 mm | 66% | 2 m/s | 5.4 |
| 1987 | 30.4°C | 23.9°C | 27.2°C | 156 mm | 76% | 2.5 m/s | 4.8 |
| 1986 | 31.6°C | 25.0°C | 28.3°C | 16 mm | 70% | 1.9 m/s | 5.2 |
| 1985 | 31.1°C | 23.8°C | 27.5°C | 98 mm | 69% | 2 m/s | 5.3 |
| 1984 | 30.9°C | 24.6°C | 27.8°C | 24 mm | 66% | 1.9 m/s | 5.2 |
| 1983 | 31.0°C | 24.8°C | 27.9°C | 129 mm | 73% | 2.4 m/s | — |
| 1982 | 31.5°C | 24.3°C | 27.9°C | 12 mm | 64% | 2.2 m/s | — |
| 1981 | 30.2°C | 24.4°C | 27.3°C | 16 mm | 70% | 1.9 m/s | — |
Actual recorded December data for each year, 1981–2025 — sourced from NASA POWER.
The average high in December is around 30.8°C with lows near 24.2°C (mean 27.5°C), based on 45 years of NASA POWER data.
December averages 61 mm of rainfall in Kottayam, one of the drier months. The wettest on record was 211 mm in 1996.
The hottest December reached 32.3°C in 2016. The coldest dipped to 21.9°C in 1992.
Comparing the earliest years on record (1981–1985) with the most recent (2021–2025), average December temperatures have risen by about 0.4°C. Daytime highs moved from 30.9°C to 31.2°C and overnight lows from 24.4°C to 24.9°C over the same span.
December is close to Kottayam's year-round average and one of the drier months, so plan for around 30.8°C daytime highs and 24.2°C at night.
Not quite — December is the 5th coolest month in Kottayam, averaging 27.5°C.
For December in Kottayam, pack light, breathable clothing and sun protection, with typical highs of 30.8°C and lows of 24.2°C. Bring an umbrella or light rain jacket too.
Relative humidity in December averages 70% — moderately humid.
Average wind speed in December is 2.1 m/s. The windiest December on record averaged 2.6 m/s (2016).
The wettest December on record was 1996 with 211 mm. On average, December sees 61 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 Kottayam 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.
