December is close to Kottayam's year-round average, with average highs near 29.5°C and lows around 25.8°C (mean 27.7°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 December in Kottayam was 2023 — when the month averaged 28.6°C — while the coldest was 1996 at 26.7°C. Typical December days reach 29.5°C with nights near 25.8°C. The long-term December temperature trend is broadly flat.
December is one of the drier months in Kottayam, averaging 61 mm of rainfall. The wettest December on record was 1996 with 211 mm, while the driest was 1995 at 0 mm.
Relative humidity in Kottayam during December averages 70%. The most humid December was 1997 at 77%, and the least humid was 1995 at 62%.
December receives about 5 kWh/m²/day of solar energy in Kottayam. The sunniest Decembers were 1999, 2003 and 2021, among others at 5.5 kWh/m²/day, and the cloudiest were 2010, 2014 and 2020, among others at 4.6.
Average wind speed in Kottayam during December is 2.1 m/s. The windiest Decembers were 2016 and 2024 at 2.6 m/s, while the calmest were 2008 and 2021 at 1.7 m/s.
Ranked against the other 11 months using 1981–2025 averages.
| Metric | 1980s | 1990s | 2000s | 2010s | 2020s | Change |
|---|---|---|---|---|---|---|
| Avg Temp | 27.7°C | 27.3°C | 27.5°C | 27.9°C | 28.2°C | +0.5°C |
| Avg High | 29.6°C | 29.1°C | 29.5°C | 29.6°C | 29.8°C | +0.2°C |
| Avg Low | 25.8°C | 25.5°C | 25.5°C | 26.2°C | 26.5°C | +0.7°C |
| Avg Rain | 61 mm | 71 mm | 29 mm | 58 mm | 102 mm | +41 mm |
December temperatures in Kottayam have risen by about 0.5°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 29.5°C and nights around 25.8°C (mean 27.7°C) — close to Kottayam's yearly average — with moderate rainfall (61 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 | 29.4°C | 27.6°C | 25.7°C | 31.2°C | 22.9°C | 14 mm | 69% | 1.8 m/s | — |
| 2024 | 29.7°C | 28.3°C | 26.9°C | 31.1°C | 26.0°C | 147 mm | 76% | 2.6 m/s | 4.8 |
| 2023 🔥 | 30.1°C | 28.6°C | 27.1°C | 31.8°C | 25.1°C | 159 mm | 75% | 2.1 m/s | 4.9 |
| 2022 | 29.8°C | 28.3°C | 26.7°C | 31.1°C | 25.4°C | 134 mm | 72% | 2.1 m/s | 4.8 |
| 2021 | 29.7°C | 28.0°C | 26.3°C | 30.9°C | 25.0°C | 59 mm | 71% | 1.7 m/s | 5.5 |
| 2020 | 29.9°C | 28.2°C | 26.5°C | 31.1°C | 25.1°C | 100 mm | 72% | 2 m/s | 4.6 |
| 2019 | 30.2°C | 28.4°C | 26.7°C | 31.5°C | 25.5°C | 59 mm | 73% | 2 m/s | 4.9 |
| 2018 | 29.9°C | 28.3°C | 26.8°C | 31.3°C | 25.2°C | 31 mm | 72% | 1.9 m/s | 4.9 |
| 2017 | 29.4°C | 27.5°C | 25.7°C | 30.7°C | 23.3°C | 50 mm | 72% | 2.4 m/s | 5.2 |
| 2016 | 29.8°C | 28.0°C | 26.2°C | 32.3°C | 24.8°C | 21 mm | 72% | 2.6 m/s | 4.9 |
| 2015 | 29.8°C | 28.1°C | 26.5°C | 30.8°C | 24.3°C | 88 mm | 73% | 1.9 m/s | 4.9 |
| 2014 | 29.6°C | 28.0°C | 26.4°C | 30.8°C | 25.5°C | 31 mm | 72% | 1.9 m/s | 4.6 |
| 2013 | 29.3°C | 27.5°C | 25.7°C | 29.9°C | 23.7°C | 44 mm | 69% | 2.2 m/s | 5 |
| 2012 | 30.3°C | 28.3°C | 26.2°C | 31.6°C | 24.7°C | 17 mm | 69% | 2 m/s | 5 |
| 2011 | 29.6°C | 27.7°C | 25.9°C | 31.2°C | 23.9°C | 150 mm | 69% | 2.2 m/s | 4.8 |
| 2010 | 27.9°C | 26.8°C | 25.7°C | 30.0°C | 24.9°C | 92 mm | 75% | 2 m/s | 4.6 |
| 2009 | 29.7°C | 27.9°C | 26.2°C | 31.0°C | 24.2°C | 18 mm | 72% | 2.1 m/s | 5 |
| 2008 | 29.4°C | 27.6°C | 25.7°C | 30.4°C | 23.5°C | 27 mm | 68% | 1.7 m/s | 5.1 |
| 2007 | 29.7°C | 27.6°C | 25.5°C | 30.4°C | 24.3°C | 19 mm | 68% | 2.2 m/s | 4.9 |
| 2006 | 29.8°C | 27.3°C | 24.9°C | 30.5°C | 22.9°C | 1 mm | 66% | 2.3 m/s | 5.3 |
| 2005 | 28.7°C | 27.3°C | 25.8°C | 30.0°C | 24.2°C | 64 mm | 74% | 2.4 m/s | 5 |
| 2004 | 29.6°C | 27.4°C | 25.3°C | 30.5°C | 23.3°C | 4 mm | 67% | 2 m/s | 5.4 |
| 2003 | 29.8°C | 27.6°C | 25.4°C | 30.8°C | 23.9°C | 102 mm | 66% | 2 m/s | 5.5 |
| 2002 | 29.6°C | 27.7°C | 25.7°C | 30.9°C | 23.4°C | 1 mm | 67% | 1.8 m/s | 5 |
| 2001 | 29.4°C | 27.5°C | 25.6°C | 30.7°C | 23.5°C | 12 mm | 68% | 1.8 m/s | 5.4 |
| 2000 | 29.4°C | 27.1°C | 24.8°C | 30.8°C | 22.9°C | 39 mm | 66% | 2.4 m/s | 5.1 |
| 1999 | 29.1°C | 27.3°C | 25.4°C | 30.2°C | 24.0°C | 36 mm | 69% | 2 m/s | 5.5 |
| 1998 | 28.6°C | 27.2°C | 25.8°C | 30.7°C | 24.3°C | 105 mm | 74% | 2.3 m/s | 4.6 |
| 1997 | 29.4°C | 28.0°C | 26.6°C | 31.0°C | 25.8°C | 164 mm | 77% | 1.9 m/s | 4.6 |
| 1996 ❄️ 🌧️ | 28.2°C | 26.7°C | 25.3°C | 29.6°C | 23.6°C | 211 mm | 73% | 2.3 m/s | 4.6 |
| 1995 | 29.5°C | 27.1°C | 24.7°C | 30.2°C | 23.4°C | 0 mm | 62% | 2.1 m/s | 5.5 |
| 1994 | 29.7°C | 27.6°C | 25.4°C | 31.1°C | 23.3°C | 6 mm | 65% | 1.8 m/s | 5.4 |
| 1993 | 29.0°C | 27.4°C | 25.9°C | 30.1°C | 23.8°C | 140 mm | 73% | 1.9 m/s | 4.7 |
| 1992 | 29.0°C | 26.8°C | 24.7°C | 30.0°C | 21.9°C | 17 mm | 67% | 2.1 m/s | 5.3 |
| 1991 | 28.8°C | 26.9°C | 25.1°C | 30.4°C | 23.6°C | 24 mm | 69% | 2 m/s | 5 |
| 1990 | 30.1°C | 28.0°C | 25.9°C | 31.8°C | 23.5°C | 7 mm | 68% | 2.2 m/s | 5 |
| 1989 | 29.8°C | 27.6°C | 25.3°C | 31.0°C | 23.6°C | 25 mm | 68% | 2.2 m/s | 5.4 |
| 1988 | 29.9°C | 27.7°C | 25.5°C | 31.2°C | 24.2°C | 74 mm | 66% | 2 m/s | 5.4 |
| 1987 | 28.8°C | 27.4°C | 26.0°C | 30.4°C | 23.9°C | 156 mm | 76% | 2.5 m/s | 4.8 |
| 1986 | 30.2°C | 28.2°C | 26.2°C | 31.6°C | 25.0°C | 16 mm | 70% | 1.9 m/s | 5.2 |
| 1985 | 29.4°C | 27.5°C | 25.6°C | 31.1°C | 23.8°C | 98 mm | 69% | 2 m/s | 5.3 |
| 1984 | 29.4°C | 27.6°C | 25.8°C | 30.9°C | 24.6°C | 24 mm | 66% | 1.9 m/s | 5.2 |
| 1983 | 29.6°C | 27.7°C | 25.9°C | 31.0°C | 24.8°C | 129 mm | 73% | 2.4 m/s | — |
| 1982 | 30.4°C | 28.1°C | 25.8°C | 31.5°C | 24.3°C | 12 mm | 64% | 2.2 m/s | — |
| 1981 | 29.2°C | 27.6°C | 26.0°C | 30.2°C | 24.4°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 29.5°C with lows near 25.8°C (mean 27.7°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 0.5°C. Daytime highs moved from 29.6°C to 29.7°C and overnight lows from 25.8°C to 26.5°C over the same span.
December is close to Kottayam's year-round average and one of the drier months, so plan for around 29.5°C daytime highs and 25.8°C at night.
Not quite — December is the 7th coolest month in Kottayam, averaging 27.7°C.
For December in Kottayam, pack light layers you can adjust through the day, with typical highs of 29.5°C and lows of 25.8°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.
