December is one of the cooler months of the year in Ernakulam, with average highs near 30.1°C and lows around 23.6°C (mean 26.9°C). It is one of the drier months, averaging 51 mm of rainfall and 72% relative humidity across the period.
December is one of the cooler months of the year in Ernakulam. Across 45 years of records, the warmest Decembers in Ernakulam were 1986 and 2012 — when the month averaged 28°C — while the coldest was 1996 at 25.6°C. Typical December days reach 30.1°C with nights near 23.6°C. The long-term December temperature trend is broadly flat.
December is one of the drier months in Ernakulam, averaging 51 mm of rainfall. The wettest December on record was 1996 with 198 mm, while the driest were 1995 and 2006 at 0 mm.
Relative humidity in Ernakulam during December averages 72%. The most humid December was 1997 at 81%, and the least humid was 1982 at 64%.
December receives about 5 kWh/m²/day of solar energy in Ernakulam. 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 Ernakulam during December is 1.6 m/s. The windiest Decembers were 2016, 2017 and 2024, among others at 1.9 m/s, while the calmest was 2008 at 1.3 m/s.
Ranked against the other 11 months using 1981–2025 averages.
| Metric | 1980s | 1990s | 2000s | 2010s | 2020s | Change |
|---|---|---|---|---|---|---|
| Avg Temp | 27.2°C | 26.5°C | 26.6°C | 27.1°C | 27.1°C | -0.1°C |
| Avg High | 30.7°C | 29.8°C | 30.2°C | 30.2°C | 29.9°C | -0.8°C |
| Avg Low | 23.7°C | 23.2°C | 23.1°C | 24.1°C | 24.3°C | +0.6°C |
| Avg Rain | 49 mm | 61 mm | 24 mm | 45 mm | 94 mm | +45 mm |
December temperatures in Ernakulam have stayed relatively stable across the record.
December has ranged from a record low of 19.3°C (1992) to a record high of 34.1°C (2016).
Rainfall in December is one of the drier months, averaging 51 mm, with a wettest year of 198 mm.
Daytime highs and overnight lows have shifted differently — highs fell about 0.1°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 Ernakulam
December is one of the best times to visit Ernakulam. Expect days averaging 30.1°C and nights around 23.6°C (mean 26.9°C) — close to Ernakulam's yearly average — with moderate rainfall (51 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 | 29.8°C | 26.6°C | 23.3°C | 31.5°C | 20.5°C | 20 mm | 72% | 1.6 m/s | — |
| 2024 | 29.9°C | 27.4°C | 25.0°C | 31.5°C | 23.1°C | 145 mm | 80% | 1.9 m/s | 4.8 |
| 2023 | 30.0°C | 27.6°C | 25.1°C | 31.6°C | 22.5°C | 123 mm | 80% | 1.7 m/s | 4.9 |
| 2022 | 29.8°C | 27.1°C | 24.4°C | 31.1°C | 22.6°C | 138 mm | 76% | 1.5 m/s | 4.8 |
| 2021 | 29.6°C | 26.8°C | 24.0°C | 31.1°C | 21.4°C | 45 mm | 77% | 1.4 m/s | 5.5 |
| 2020 | 30.1°C | 27.2°C | 24.2°C | 32.4°C | 22.3°C | 93 mm | 75% | 1.5 m/s | 4.6 |
| 2019 | 30.4°C | 27.6°C | 24.9°C | 31.7°C | 23.3°C | 60 mm | 76% | 1.4 m/s | 4.9 |
| 2018 | 30.4°C | 27.6°C | 24.8°C | 31.8°C | 22.9°C | 27 mm | 74% | 1.5 m/s | 4.9 |
| 2017 | 29.8°C | 26.8°C | 23.7°C | 31.5°C | 20.9°C | 39 mm | 74% | 1.9 m/s | 5.2 |
| 2016 | 31.4°C | 27.9°C | 24.4°C | 34.1°C | 23.0°C | 28 mm | 72% | 1.9 m/s | 4.9 |
| 2015 | 29.9°C | 27.1°C | 24.3°C | 31.3°C | 21.5°C | 70 mm | 77% | 1.5 m/s | 4.9 |
| 2014 | 30.1°C | 27.2°C | 24.3°C | 31.6°C | 22.4°C | 22 mm | 74% | 1.6 m/s | 4.6 |
| 2013 | 29.7°C | 26.5°C | 23.4°C | 30.9°C | 20.9°C | 48 mm | 72% | 1.7 m/s | 5 |
| 2012 | 31.6°C | 28.0°C | 24.4°C | 33.4°C | 22.3°C | 12 mm | 69% | 1.6 m/s | 5 |
| 2011 | 30.4°C | 26.9°C | 23.4°C | 31.9°C | 20.8°C | 83 mm | 71% | 1.7 m/s | 4.8 |
| 2010 | 28.0°C | 25.8°C | 23.6°C | 30.2°C | 21.7°C | 63 mm | 79% | 1.5 m/s | 4.6 |
| 2009 | 30.3°C | 27.3°C | 24.3°C | 32.2°C | 21.4°C | 16 mm | 75% | 1.6 m/s | 5 |
| 2008 | 30.8°C | 27.0°C | 23.2°C | 32.1°C | 20.0°C | 22 mm | 68% | 1.3 m/s | 5.1 |
| 2007 | 30.2°C | 26.6°C | 23.1°C | 31.3°C | 20.9°C | 31 mm | 71% | 1.8 m/s | 4.9 |
| 2006 | 30.1°C | 26.3°C | 22.5°C | 31.2°C | 20.5°C | 0 mm | 70% | 1.9 m/s | 5.3 |
| 2005 | 28.9°C | 26.3°C | 23.7°C | 30.2°C | 21.1°C | 45 mm | 78% | 1.8 m/s | 5 |
| 2004 | 30.1°C | 26.3°C | 22.5°C | 31.5°C | 20.5°C | 1 mm | 70% | 1.8 m/s | 5.4 |
| 2003 | 30.7°C | 26.8°C | 22.9°C | 32.1°C | 20.7°C | 89 mm | 68% | 1.6 m/s | 5.5 |
| 2002 | 30.2°C | 26.6°C | 23.1°C | 31.6°C | 20.6°C | 1 mm | 70% | 1.6 m/s | 5 |
| 2001 | 30.0°C | 26.6°C | 23.2°C | 32.2°C | 20.2°C | 9 mm | 71% | 1.5 m/s | 5.4 |
| 2000 | 30.7°C | 26.5°C | 22.4°C | 32.3°C | 19.6°C | 28 mm | 67% | 1.9 m/s | 5.1 |
| 1999 | 29.7°C | 26.4°C | 23.0°C | 31.3°C | 20.8°C | 34 mm | 71% | 1.6 m/s | 5.5 |
| 1998 | 29.1°C | 26.4°C | 23.8°C | 31.0°C | 20.9°C | 87 mm | 76% | 1.8 m/s | 4.6 |
| 1997 | 29.6°C | 27.3°C | 25.0°C | 31.0°C | 23.5°C | 143 mm | 81% | 1.5 m/s | 4.6 |
| 1996 ❄️ 🌧️ | 28.3°C | 25.6°C | 22.9°C | 29.9°C | 20.7°C | 198 mm | 76% | 1.7 m/s | 4.6 |
| 1995 | 30.3°C | 26.1°C | 21.9°C | 31.6°C | 20.5°C | 0 mm | 65% | 1.7 m/s | 5.5 |
| 1994 | 30.7°C | 26.7°C | 22.7°C | 32.7°C | 19.7°C | 4 mm | 66% | 1.6 m/s | 5.4 |
| 1993 | 29.3°C | 26.5°C | 23.6°C | 30.3°C | 21.6°C | 110 mm | 76% | 1.5 m/s | 4.7 |
| 1992 | 29.5°C | 25.8°C | 22.2°C | 30.8°C | 19.3°C | 13 mm | 71% | 1.7 m/s | 5.3 |
| 1991 | 29.8°C | 26.3°C | 22.7°C | 31.5°C | 20.4°C | 20 mm | 71% | 1.7 m/s | 5 |
| 1990 | 31.5°C | 27.7°C | 23.9°C | 33.5°C | 21.7°C | 4 mm | 68% | 1.8 m/s | 5 |
| 1989 | 30.8°C | 27.1°C | 23.4°C | 32.1°C | 21.4°C | 25 mm | 70% | 1.7 m/s | 5.4 |
| 1988 | 31.3°C | 27.3°C | 23.4°C | 32.9°C | 21.5°C | 65 mm | 66% | 1.7 m/s | 5.4 |
| 1987 | 29.1°C | 26.7°C | 24.3°C | 30.8°C | 21.3°C | 100 mm | 78% | 1.8 m/s | 4.8 |
| 1986 🔥 | 31.7°C | 28.0°C | 24.3°C | 33.3°C | 22.2°C | 12 mm | 70% | 1.6 m/s | 5.2 |
| 1985 | 30.6°C | 27.1°C | 23.6°C | 32.6°C | 21.2°C | 84 mm | 71% | 1.6 m/s | 5.3 |
| 1984 | 30.4°C | 26.8°C | 23.1°C | 33.0°C | 21.2°C | 34 mm | 67% | 1.4 m/s | 5.2 |
| 1983 | 30.4°C | 27.3°C | 24.3°C | 32.3°C | 23.0°C | 93 mm | 74% | 1.8 m/s | — |
| 1982 | 32.1°C | 27.9°C | 23.7°C | 33.5°C | 22.0°C | 7 mm | 64% | 1.8 m/s | — |
| 1981 | 29.6°C | 26.6°C | 23.6°C | 31.0°C | 21.9°C | 19 mm | 73% | 1.4 m/s | — |
Actual recorded December data for each year, 1981–2025 — sourced from NASA POWER.
The average high in December is around 30.1°C with lows near 23.6°C (mean 26.9°C), based on 45 years of NASA POWER data.
December averages 51 mm of rainfall in Ernakulam, one of the drier months. The wettest on record was 198 mm in 1996.
The hottest December reached 34.1°C in 2016. The coldest dipped to 19.3°C in 1992.
Comparing the earliest years on record (1981–1985) with the most recent (2021–2025), average December temperatures have held steady by about 0°C — but days and nights have moved in opposite directions. Overnight lows rose from 23.7°C to 24.4°C while daytime highs eased from 30.6°C to 29.8°C, narrowing the gap between day and night.
December is one of the cooler months of the year in Ernakulam and one of the drier months, so plan for around 30.1°C daytime highs and 23.6°C at night.
Not quite — December is the 6th coolest month in Ernakulam, averaging 26.9°C.
For December in Ernakulam, pack light, breathable clothing and sun protection, with typical highs of 30.1°C and lows of 23.6°C. Bring an umbrella or light rain jacket too.
Relative humidity in December averages 72% — moderately humid.
Average wind speed in December is 1.6 m/s. The windiest December on record averaged 1.9 m/s (2000).
The wettest December on record was 1996 with 198 mm. On average, December sees 51 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 Ernakulam 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.
