December is one of the cooler months of the year in Mumbai, with average highs near 33.1°C and lows around 13.6°C (mean 23.4°C). It is one of the drier months, averaging 6 mm of rainfall and 60% relative humidity across the period.
December is one of the cooler months of the year in Mumbai. Across 45 years of records, the warmest December in Mumbai was 2002 — when the month averaged 26.6°C — while the coldest was 1983 at 20.8°C. Typical December days reach 33.1°C with nights near 13.6°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 | 23.0°C | 23.0°C | 24.0°C | 23.2°C | 23.1°C | +0.1°C |
| Avg High | 33.6°C | 32.6°C | 33.8°C | 32.9°C | 32.2°C | -1.4°C |
| Avg Low | 12.5°C | 13.5°C | 14.3°C | 13.5°C | 14.1°C | +1.6°C |
| Avg Rain | 4 mm | 6 mm | 2 mm | 7 mm | 16 mm | +12 mm |
December temperatures in Mumbai have risen by about 0.3°C between 1981–1985 and 2021–2025.
December has ranged from a record low of 9.1°C (1983) to a record high of 37.1°C (2002).
Rainfall in December is one of the drier months, averaging 6 mm, with a wettest year of 71 mm.
Daytime highs and overnight lows have shifted differently — highs fell about 0.2°C per decade while lows rose 0.3°C per decade, narrowing the gap between day and night.
One of the best times to visit Mumbai
December is one of the best times to visit Mumbai. Expect days averaging 33.1°C and nights around 13.6°C (mean 23.4°C) — cooler than Mumbai's yearly average — with low rainfall (6 mm), so conditions are generally comfortable for sightseeing and outdoor plans.
| Year | High | Low | Avg | Rainfall | Humidity | Wind | Solar |
|---|---|---|---|---|---|---|---|
| 2025 | 31.4°C | 13.4°C | 22.4°C | 0 mm | 62% | 2.5 m/s | — |
| 2024 | 32.9°C | 13.2°C | 23.0°C | 5 mm | 72% | 2.1 m/s | 4.3 |
| 2023 | 34.4°C | 16.0°C | 25.2°C | 1 mm | 65% | 2.1 m/s | 4.3 |
| 2022 | 32.6°C | 12.9°C | 22.7°C | 6 mm | 69% | 1.9 m/s | 4.4 |
| 2021 🌧️ | 30.2°C | 15.1°C | 22.6°C | 71 mm | 75% | 1.8 m/s | 4.2 |
| 2020 | 31.6°C | 13.8°C | 22.7°C | 12 mm | 69% | 1.8 m/s | 4.2 |
| 2019 | 31.4°C | 15.9°C | 23.7°C | 3 mm | 77% | 1.9 m/s | 4 |
| 2018 | 34.3°C | 12.3°C | 23.3°C | 0 mm | 46% | 2.2 m/s | 4.5 |
| 2017 | 31.2°C | 14.4°C | 22.8°C | 47 mm | 67% | 2.2 m/s | 4.2 |
| 2016 | 33.9°C | 13.5°C | 23.7°C | 0 mm | 54% | 2.1 m/s | 4.9 |
| 2015 | 35.6°C | 12.7°C | 24.2°C | 0 mm | 53% | 2.1 m/s | 4.8 |
| 2014 | 33.8°C | 11.9°C | 22.8°C | 19 mm | 54% | 2.2 m/s | 4.6 |
| 2013 | 32.1°C | 14.3°C | 23.2°C | 2 mm | 61% | 1.9 m/s | 4.8 |
| 2012 | 33.0°C | 15.2°C | 24.1°C | 0 mm | 63% | 1.8 m/s | 4.8 |
| 2011 | 33.0°C | 12.6°C | 22.8°C | 0 mm | 59% | 1.9 m/s | 4.7 |
| 2010 | 30.9°C | 12.5°C | 21.7°C | 0 mm | 71% | 1.9 m/s | 4.7 |
| 2009 | 31.3°C | 12.9°C | 22.1°C | 0 mm | 67% | 1.8 m/s | 4.6 |
| 2008 | 34.1°C | 13.7°C | 23.9°C | 7 mm | 58% | 1.9 m/s | 4.5 |
| 2007 | 35.1°C | 14.1°C | 24.6°C | 0 mm | 61% | 2.1 m/s | 4.5 |
| 2006 | 32.7°C | 15.2°C | 24.0°C | 0 mm | 62% | 2 m/s | 4.8 |
| 2005 | 31.8°C | 12.4°C | 22.1°C | 0 mm | 59% | 2 m/s | 4.7 |
| 2004 | 34.1°C | 15.8°C | 24.9°C | 0 mm | 54% | 2.1 m/s | 4.8 |
| 2003 | 33.6°C | 12.9°C | 23.3°C | 0 mm | 57% | 1.9 m/s | 4.9 |
| 2002 🔥 | 37.1°C | 16.1°C | 26.6°C | 0 mm | 49% | 2 m/s | 4.8 |
| 2001 | 33.0°C | 15.0°C | 24.0°C | 0 mm | 56% | 1.9 m/s | 4.8 |
| 2000 | 34.8°C | 14.7°C | 24.7°C | 11 mm | 44% | 2.2 m/s | 4.7 |
| 1999 | 33.6°C | 12.7°C | 23.1°C | 0 mm | 56% | 2.2 m/s | 5 |
| 1998 | 30.4°C | 13.5°C | 22.0°C | 0 mm | 63% | 2.3 m/s | 4.8 |
| 1997 | 31.7°C | 14.2°C | 22.9°C | 37 mm | 74% | 1.7 m/s | 4.4 |
| 1996 | 32.6°C | 13.3°C | 22.9°C | 0 mm | 60% | 2 m/s | 4.7 |
| 1995 | 33.6°C | 14.8°C | 24.2°C | 0 mm | 61% | 1.8 m/s | 4.8 |
| 1994 | 32.2°C | 12.3°C | 22.2°C | 0 mm | 53% | 2.2 m/s | 4.7 |
| 1993 | 31.2°C | 13.9°C | 22.6°C | 14 mm | 64% | 2.3 m/s | 4.7 |
| 1992 | 33.5°C | 14.6°C | 24.1°C | 0 mm | 54% | 2.1 m/s | 4.8 |
| 1991 | 34.4°C | 11.9°C | 23.1°C | 4 mm | 49% | 2.2 m/s | 4.7 |
| 1990 | 32.5°C | 13.7°C | 23.1°C | 0 mm | 67% | 2 m/s | 4.7 |
| 1989 | 32.4°C | 12.5°C | 22.4°C | 0 mm | 55% | 2.1 m/s | 4.8 |
| 1988 | 32.9°C | 13.3°C | 23.1°C | 0 mm | 57% | 2.2 m/s | 4.9 |
| 1987 | 34.5°C | 13.5°C | 24.0°C | 20 mm | 56% | 2 m/s | 4.5 |
| 1986 | 35.8°C | 11.1°C | 23.4°C | 15 mm | 46% | 2.2 m/s | 4.9 |
| 1985 | 34.8°C | 15.4°C | 25.1°C | 0 mm | 58% | 1.8 m/s | 4.8 |
| 1984 | 34.6°C | 12.9°C | 23.8°C | 0 mm | 50% | 1.9 m/s | 4.7 |
| 1983 ❄️ | 32.6°C | 9.1°C | 20.8°C | 0 mm | 61% | 2 m/s | — |
| 1982 | 32.6°C | 13.1°C | 22.8°C | 0 mm | 64% | 1.8 m/s | — |
| 1981 | 31.9°C | 11.9°C | 21.9°C | 2 mm | 67% | 1.9 m/s | — |
Actual recorded December data for each year, 1981–2025 — sourced from NASA POWER.
The average high in December is around 33.1°C with lows near 13.6°C (mean 23.4°C), based on 45 years of NASA POWER data.
December averages 6 mm of rainfall in Mumbai, one of the drier months. The wettest on record was 71 mm in 2021.
The hottest December reached 37.1°C in 2002. The coldest dipped to 9.1°C in 1983.
Comparing the earliest years on record (1981–1985) with the most recent (2021–2025), average December temperatures have risen by about 0.3°C. Daytime highs moved from 33.3°C to 32.3°C and overnight lows from 12.5°C to 14.1°C over the same span.
December is one of the cooler months of the year in Mumbai and one of the drier months, so plan for around 33.1°C daytime highs and 13.6°C at night.
Yes — December is the coldest month of the year in Mumbai, averaging 23.4°C.
For December in Mumbai, pack light, breathable clothing and sun protection, with typical highs of 33.1°C and lows of 13.6°C.
Relative humidity in December averages 60% — moderately humid.
Average wind speed in December is 2 m/s. The windiest December on record averaged 2.5 m/s (2025).
The wettest December on record was 2021 with 71 mm. On average, December sees 6 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 Mumbai 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.
