Mumbai weather in December
In December, Mumbai sees average daytime highs of 30°C and overnight lows near 20°C, with 6 mm of rain across 0.5 wet days and about 10.9 hours of daylight. It is the 6th-warmest and 8th-wettest month of the year here.
Highs ease over the month, from about 31°C in the first days to 29°C by the end. The sky is clear or mostly clear about 79% of the time in December, and the air most often feels humid.
Daylight stretches from about 10 h 54 min at the start of December to 10 h 54 min by month's end. Set against the rest of the year, December is Mumbai's 5th-clearest and 10th-windiest month. For the whole year in context, see Mumbai's year-round climate.
- Daytime high
- 30°
- 6th warmest
- Overnight low
- 20°
- 3rd coldest
- Rainfall
- 6 mm
- 0.5 wet days
- Daylight
- 10 h 54 min
- 7:09 AM – 6:00 PM
- Cloud cover
- 21%
- 5th clearest
- Wind
- 9 km/h
- 10th windiest
- Solar energy
- 4.87 kWh/m²
- Travel score
- 6.5
- out of 10
Mumbai is capital city in Maharashtra, India.
- Air quality
- Very high
- PM2.5 40 µg/m³ · 2019
- Density
- 21,048/km²
- people per km²
- Founded
- 1507
Air quality: WHO Ambient Air Quality Database. Density & description: Wikidata (CC0), GeoNames.
Temperature in December
Highs ease over the month, from about 31°C in the first days to 29°C by the end.
A typical December day in Mumbai reaches about 30°C in the afternoon and slips back to 20°C overnight — a 10°C spread between the day's warmth and the night's chill. On most days the high lands between 29°C and 32°C. Set against its neighbours, December runs about 1°C cooler than November and about 1°C warmer than January.
| 1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 | 9 | 10 | 11 | 12 | 13 | 14 | 15 | 16 | 17 | 18 | 19 | 20 | 21 | 22 | 23 | 24 | 25 | 26 | 27 | 28 | 29 | 30 | 31 | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Avg high (°C) | 31 | 31 | 31 | 31 | 31 | 31 | 31 | 31 | 31 | 31 | 31 | 31 | 30 | 30 | 30 | 30 | 30 | 30 | 30 | 30 | 30 | 30 | 30 | 30 | 30 | 30 | 30 | 30 | 30 | 29 | 29 |
| Avg low (°C) | 21 | 21 | 21 | 21 | 21 | 21 | 21 | 21 | 21 | 20 | 20 | 20 | 20 | 20 | 20 | 20 | 20 | 20 | 20 | 20 | 20 | 19 | 19 | 19 | 19 | 19 | 19 | 19 | 19 | 19 | 19 |
| Avg high (°C) | Avg low (°C) | |
|---|---|---|
| 1 | 31 | 21 |
| 2 | 31 | 21 |
| 3 | 31 | 21 |
| 4 | 31 | 21 |
| 5 | 31 | 21 |
| 6 | 31 | 21 |
| 7 | 31 | 21 |
| 8 | 31 | 21 |
| 9 | 31 | 21 |
| 10 | 31 | 20 |
| 11 | 31 | 20 |
| 12 | 31 | 20 |
| 13 | 30 | 20 |
| 14 | 30 | 20 |
| 15 | 30 | 20 |
| 16 | 30 | 20 |
| 17 | 30 | 20 |
| 18 | 30 | 20 |
| 19 | 30 | 20 |
| 20 | 30 | 20 |
| 21 | 30 | 20 |
| 22 | 30 | 19 |
| 23 | 30 | 19 |
| 24 | 30 | 19 |
| 25 | 30 | 19 |
| 26 | 30 | 19 |
| 27 | 30 | 19 |
| 28 | 30 | 19 |
| 29 | 30 | 19 |
| 30 | 29 | 19 |
| 31 | 29 | 19 |
How December really feels in Mumbai
Once humidity and wind are folded in, December averages 1 day that feel above 32°C and 0 that feel at or below 0°C — the comfort signal a plain temperature reading hides.
The story in December is heat — humidity pushes the afternoon "feels like" well above the raw temperature.
Mumbai weather by month
How December compares with the rest of the year at a glance. December is the 6th-warmest and 8th-wettest month here — the current month is highlighted below.
| Month | High / Low (°C) | Rainfall (mm) | Wet days | Daylight (hours) | Travel score |
|---|---|---|---|---|---|
| Jan | 29° / 19° | 1 | 0.2 | 11 | 7.4 |
| Feb | 30° / 20° | 1 | 0.1 | 11.4 | 7.0 |
| Mar | 32° / 22° | 1 | 0.1 | 11.9 | 5.8 |
| Apr | 32° / 25° | 0 | 0.1 | 12.4 | 5.4 |
| May | 32° / 27° | 15 | 3 | 12.9 | 5.0 |
| Jun | 30° / 27° | 420 | 25 | 13.1 | 3.1 |
| Jul | 28° / 26° | 636 | 31 | 13 | 3.0 |
| Aug | 28° / 25° | 476 | 30.4 | 12.6 | 3.3 |
| Sep | 29° / 25° | 296 | 23.5 | 12.1 | 3.7 |
| Oct | 31° / 25° | 61 | 8.8 | 11.6 | 4.7 |
| Nov | 32° / 23° | 8 | 1.4 | 11.1 | 5.4 |
| Dec | 30° / 20° | 6 | 0.5 | 10.9 | 6.5 |
Cloud cover in December
The sky is clear or mostly clear about 79% of the time in December.
Beyond those clear spells, partly cloudy skies cover about 7% of December, with mostly cloudy or overcast conditions the remaining 14%. Skies tend to open up as the month goes on.
| 1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 | 9 | 10 | 11 | 12 | 13 | 14 | 15 | 16 | 17 | 18 | 19 | 20 | 21 | 22 | 23 | 24 | 25 | 26 | 27 | 28 | 29 | 30 | 31 | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Clearer (%) | 79 | 79 | 79 | 79 | 80 | 81 | 81 | 83 | 83 | 83 | 85 | 85 | 86 | 86 | 87 | 87 | 87 | 88 | 89 | 89 | 89 | 89 | 89 | 90 | 90 | 90 | 91 | 91 | 91 | 91 | 92 |
| Cloudier (%) | 21 | 21 | 21 | 21 | 20 | 19 | 19 | 17 | 17 | 17 | 15 | 15 | 14 | 14 | 13 | 13 | 13 | 12 | 11 | 11 | 11 | 11 | 11 | 10 | 10 | 10 | 9 | 9 | 9 | 9 | 8 |
| Clearer (%) | Cloudier (%) | |
|---|---|---|
| 1 | 79 | 21 |
| 2 | 79 | 21 |
| 3 | 79 | 21 |
| 4 | 79 | 21 |
| 5 | 80 | 20 |
| 6 | 81 | 19 |
| 7 | 81 | 19 |
| 8 | 83 | 17 |
| 9 | 83 | 17 |
| 10 | 83 | 17 |
| 11 | 85 | 15 |
| 12 | 85 | 15 |
| 13 | 86 | 14 |
| 14 | 86 | 14 |
| 15 | 87 | 13 |
| 16 | 87 | 13 |
| 17 | 87 | 13 |
| 18 | 88 | 12 |
| 19 | 89 | 11 |
| 20 | 89 | 11 |
| 21 | 89 | 11 |
| 22 | 89 | 11 |
| 23 | 89 | 11 |
| 24 | 90 | 10 |
| 25 | 90 | 10 |
| 26 | 90 | 10 |
| 27 | 91 | 9 |
| 28 | 91 | 9 |
| 29 | 91 | 9 |
| 30 | 91 | 9 |
| 31 | 92 | 8 |
Chance of precipitation in December
Mumbai gets around 6 mm of rain over 0.5 wet days in December. The line is the day-by-day chance of measurable precipitation.
Day to day, the chance of measurable rain averages around 2% and peaks near 3% on the wettest days.
| 1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 | 9 | 10 | 11 | 12 | 13 | 14 | 15 | 16 | 17 | 18 | 19 | 20 | 21 | 22 | 23 | 24 | 25 | 26 | 27 | 28 | 29 | 30 | 31 | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Rain chance (%) | 3 | 3 | 3 | 3 | 3 | 3 | 3 | 3 | 3 | 3 | 3 | 2 | 2 | 2 | 2 | 1 | 1 | 1 | 1 | 1 | 1 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 1 | 1 | 1 |
| Rain chance (%) | |
|---|---|
| 1 | 3 |
| 2 | 3 |
| 3 | 3 |
| 4 | 3 |
| 5 | 3 |
| 6 | 3 |
| 7 | 3 |
| 8 | 3 |
| 9 | 3 |
| 10 | 3 |
| 11 | 3 |
| 12 | 2 |
| 13 | 2 |
| 14 | 2 |
| 15 | 2 |
| 16 | 1 |
| 17 | 1 |
| 18 | 1 |
| 19 | 1 |
| 20 | 1 |
| 21 | 1 |
| 22 | 0 |
| 23 | 0 |
| 24 | 0 |
| 25 | 0 |
| 26 | 0 |
| 27 | 0 |
| 28 | 0 |
| 29 | 1 |
| 30 | 1 |
| 31 | 1 |
Humidity in December
Most of December feels humid — the stacked bands show each day's mix of comfort levels, read off the dew point.
By dew point, December lands in the humid band about 41% of days. Sticky, muggy-or-worse air turns up on roughly 29% of them.
| 1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 | 9 | 10 | 11 | 12 | 13 | 14 | 15 | 16 | 17 | 18 | 19 | 20 | 21 | 22 | 23 | 24 | 25 | 26 | 27 | 28 | 29 | 30 | 31 | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Dry (%) | 0 | 0 | 0 | 0 | 0 | 1 | 1 | 1 | 1 | 1 | 2 | 2 | 3 | 3 | 4 | 4 | 5 | 5 | 6 | 6 | 6 | 7 | 7 | 7 | 8 | 8 | 8 | 8 | 9 | 9 | 9 |
| Comfortable (%) | 15 | 16 | 16 | 17 | 18 | 19 | 20 | 21 | 22 | 24 | 25 | 26 | 27 | 28 | 28 | 29 | 30 | 30 | 31 | 31 | 31 | 32 | 32 | 32 | 32 | 32 | 32 | 32 | 32 | 32 | 32 |
| Humid (%) | 37 | 38 | 38 | 38 | 38 | 38 | 38 | 38 | 38 | 38 | 38 | 39 | 39 | 39 | 40 | 40 | 41 | 41 | 42 | 42 | 42 | 42 | 43 | 43 | 43 | 43 | 44 | 44 | 44 | 44 | 44 |
| Muggy (%) | 34 | 33 | 33 | 33 | 32 | 32 | 31 | 31 | 31 | 30 | 29 | 28 | 27 | 26 | 24 | 23 | 22 | 21 | 20 | 19 | 18 | 18 | 17 | 16 | 16 | 15 | 15 | 15 | 15 | 15 | 15 |
| Oppressive (%) | 14 | 13 | 12 | 12 | 11 | 10 | 9 | 9 | 8 | 7 | 6 | 5 | 5 | 4 | 4 | 3 | 3 | 3 | 2 | 2 | 2 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 0 |
| Dry (%) | Comfortable (%) | Humid (%) | Muggy (%) | Oppressive (%) | |
|---|---|---|---|---|---|
| 1 | 0 | 15 | 37 | 34 | 14 |
| 2 | 0 | 16 | 38 | 33 | 13 |
| 3 | 0 | 16 | 38 | 33 | 12 |
| 4 | 0 | 17 | 38 | 33 | 12 |
| 5 | 0 | 18 | 38 | 32 | 11 |
| 6 | 1 | 19 | 38 | 32 | 10 |
| 7 | 1 | 20 | 38 | 31 | 9 |
| 8 | 1 | 21 | 38 | 31 | 9 |
| 9 | 1 | 22 | 38 | 31 | 8 |
| 10 | 1 | 24 | 38 | 30 | 7 |
| 11 | 2 | 25 | 38 | 29 | 6 |
| 12 | 2 | 26 | 39 | 28 | 5 |
| 13 | 3 | 27 | 39 | 27 | 5 |
| 14 | 3 | 28 | 39 | 26 | 4 |
| 15 | 4 | 28 | 40 | 24 | 4 |
| 16 | 4 | 29 | 40 | 23 | 3 |
| 17 | 5 | 30 | 41 | 22 | 3 |
| 18 | 5 | 30 | 41 | 21 | 3 |
| 19 | 6 | 31 | 42 | 20 | 2 |
| 20 | 6 | 31 | 42 | 19 | 2 |
| 21 | 6 | 31 | 42 | 18 | 2 |
| 22 | 7 | 32 | 42 | 18 | 1 |
| 23 | 7 | 32 | 43 | 17 | 1 |
| 24 | 7 | 32 | 43 | 16 | 1 |
| 25 | 8 | 32 | 43 | 16 | 1 |
| 26 | 8 | 32 | 43 | 15 | 1 |
| 27 | 8 | 32 | 44 | 15 | 1 |
| 28 | 8 | 32 | 44 | 15 | 1 |
| 29 | 9 | 32 | 44 | 15 | 1 |
| 30 | 9 | 32 | 44 | 15 | 1 |
| 31 | 9 | 32 | 44 | 15 | 0 |
Wind in December
Winds average 9 km/h in December.
Across December, daily wind ranges from about 9 km/h on the calmest days to 9 km/h at its breeziest. It stays fairly steady from day to day.
| 1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 | 9 | 10 | 11 | 12 | 13 | 14 | 15 | 16 | 17 | 18 | 19 | 20 | 21 | 22 | 23 | 24 | 25 | 26 | 27 | 28 | 29 | 30 | 31 | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Wind speed (km/h) | 9 | 9 | 9 | 9 | 9 | 9 | 9 | 9 | 9 | 9 | 9 | 9 | 9 | 9 | 9 | 9 | 9 | 9 | 9 | 9 | 9 | 9 | 9 | 9 | 9 | 9 | 9 | 9 | 9 | 9 | 9 |
| Feels | calm | calm | calm | calm | calm | calm | calm | calm | calm | calm | calm | calm | calm | calm | calm | calm | calm | calm | calm | calm | calm | calm | calm | calm | calm | calm | calm | calm | calm | calm | calm |
| Wind speed (km/h) | Feels | |
|---|---|---|
| 1 | 9 | calm |
| 2 | 9 | calm |
| 3 | 9 | calm |
| 4 | 9 | calm |
| 5 | 9 | calm |
| 6 | 9 | calm |
| 7 | 9 | calm |
| 8 | 9 | calm |
| 9 | 9 | calm |
| 10 | 9 | calm |
| 11 | 9 | calm |
| 12 | 9 | calm |
| 13 | 9 | calm |
| 14 | 9 | calm |
| 15 | 9 | calm |
| 16 | 9 | calm |
| 17 | 9 | calm |
| 18 | 9 | calm |
| 19 | 9 | calm |
| 20 | 9 | calm |
| 21 | 9 | calm |
| 22 | 9 | calm |
| 23 | 9 | calm |
| 24 | 9 | calm |
| 25 | 9 | calm |
| 26 | 9 | calm |
| 27 | 9 | calm |
| 28 | 9 | calm |
| 29 | 9 | calm |
| 30 | 9 | calm |
| 31 | 9 | calm |
Sunrise & sunset in December
Daylight runs from about 10 h 54 min at the start of December to 10 h 54 min by month's end. The lit band spans sunrise to sunset each day.
Days grow by about 0 minutes over December. Sunrise moves from 7:00 AM to 7:16 AM, and sunset from 5:56 PM to 6:08 PM.
| 1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 | 9 | 10 | 11 | 12 | 13 | 14 | 15 | 16 | 17 | 18 | 19 | 20 | 21 | 22 | 23 | 24 | 25 | 26 | 27 | 28 | 29 | 30 | 31 | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Daylight (h) | 10.9 | 10.9 | 10.9 | 10.9 | 10.9 | 10.9 | 10.9 | 10.9 | 10.9 | 10.9 | 10.9 | 10.9 | 10.9 | 10.9 | 10.9 | 10.9 | 10.9 | 10.9 | 10.9 | 10.9 | 10.9 | 10.9 | 10.9 | 10.9 | 10.9 | 10.9 | 10.9 | 10.9 | 10.9 | 10.9 | 10.9 |
| Sunrise (AM) | 7:00 | 7:01 | 7:01 | 7:02 | 7:03 | 7:03 | 7:04 | 7:04 | 7:05 | 7:06 | 7:06 | 7:07 | 7:07 | 7:08 | 7:08 | 7:09 | 7:09 | 7:10 | 7:10 | 7:11 | 7:11 | 7:12 | 7:12 | 7:13 | 7:13 | 7:14 | 7:14 | 7:15 | 7:15 | 7:15 | 7:16 |
| Sunset (PM) | 5:56 | 5:56 | 5:57 | 5:57 | 5:57 | 5:57 | 5:57 | 5:58 | 5:58 | 5:58 | 5:59 | 5:59 | 5:59 | 6:00 | 6:00 | 6:00 | 6:01 | 6:01 | 6:02 | 6:02 | 6:02 | 6:03 | 6:03 | 6:04 | 6:04 | 6:05 | 6:05 | 6:06 | 6:07 | 6:07 | 6:08 |
| Daylight (h) | Sunrise (AM) | Sunset (PM) | |
|---|---|---|---|
| 1 | 10.9 | 7:00 | 5:56 |
| 2 | 10.9 | 7:01 | 5:56 |
| 3 | 10.9 | 7:01 | 5:57 |
| 4 | 10.9 | 7:02 | 5:57 |
| 5 | 10.9 | 7:03 | 5:57 |
| 6 | 10.9 | 7:03 | 5:57 |
| 7 | 10.9 | 7:04 | 5:57 |
| 8 | 10.9 | 7:04 | 5:58 |
| 9 | 10.9 | 7:05 | 5:58 |
| 10 | 10.9 | 7:06 | 5:58 |
| 11 | 10.9 | 7:06 | 5:59 |
| 12 | 10.9 | 7:07 | 5:59 |
| 13 | 10.9 | 7:07 | 5:59 |
| 14 | 10.9 | 7:08 | 6:00 |
| 15 | 10.9 | 7:08 | 6:00 |
| 16 | 10.9 | 7:09 | 6:00 |
| 17 | 10.9 | 7:09 | 6:01 |
| 18 | 10.9 | 7:10 | 6:01 |
| 19 | 10.9 | 7:10 | 6:02 |
| 20 | 10.9 | 7:11 | 6:02 |
| 21 | 10.9 | 7:11 | 6:02 |
| 22 | 10.9 | 7:12 | 6:03 |
| 23 | 10.9 | 7:12 | 6:03 |
| 24 | 10.9 | 7:13 | 6:04 |
| 25 | 10.9 | 7:13 | 6:04 |
| 26 | 10.9 | 7:14 | 6:05 |
| 27 | 10.9 | 7:14 | 6:05 |
| 28 | 10.9 | 7:15 | 6:06 |
| 29 | 10.9 | 7:15 | 6:07 |
| 30 | 10.9 | 7:15 | 6:07 |
| 31 | 10.9 | 7:16 | 6:08 |
Solar energy in December
Average shortwave solar energy reaching the ground each day in December, about 4.87 kWh/m².
For context, solar energy here swings from a low near 3.4 kWh/m² to a high of 7.15 kWh/m² in April across the year — December's 4.87 kWh/m² falls in the middle.
| 1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 | 9 | 10 | 11 | 12 | 13 | 14 | 15 | 16 | 17 | 18 | 19 | 20 | 21 | 22 | 23 | 24 | 25 | 26 | 27 | 28 | 29 | 30 | 31 | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Solar energy (kWh/m²) | 4.9 | 4.9 | 4.9 | 4.9 | 4.9 | 4.9 | 4.9 | 4.9 | 4.9 | 4.9 | 4.9 | 4.9 | 4.9 | 4.9 | 4.9 | 4.9 | 4.9 | 4.9 | 4.9 | 4.9 | 4.9 | 4.9 | 4.9 | 4.9 | 4.9 | 4.9 | 4.9 | 5.0 | 5.0 | 5.0 | 5.0 |
| Level | Bright | Bright | Bright | Bright | Bright | Bright | Bright | Bright | Bright | Bright | Bright | Bright | Bright | Bright | Bright | Bright | Bright | Bright | Bright | Bright | Bright | Bright | Bright | Bright | Bright | Bright | Bright | Bright | Bright | Bright | Bright |
| Solar energy (kWh/m²) | Level | |
|---|---|---|
| 1 | 4.9 | Bright |
| 2 | 4.9 | Bright |
| 3 | 4.9 | Bright |
| 4 | 4.9 | Bright |
| 5 | 4.9 | Bright |
| 6 | 4.9 | Bright |
| 7 | 4.9 | Bright |
| 8 | 4.9 | Bright |
| 9 | 4.9 | Bright |
| 10 | 4.9 | Bright |
| 11 | 4.9 | Bright |
| 12 | 4.9 | Bright |
| 13 | 4.9 | Bright |
| 14 | 4.9 | Bright |
| 15 | 4.9 | Bright |
| 16 | 4.9 | Bright |
| 17 | 4.9 | Bright |
| 18 | 4.9 | Bright |
| 19 | 4.9 | Bright |
| 20 | 4.9 | Bright |
| 21 | 4.9 | Bright |
| 22 | 4.9 | Bright |
| 23 | 4.9 | Bright |
| 24 | 4.9 | Bright |
| 25 | 4.9 | Bright |
| 26 | 4.9 | Bright |
| 27 | 4.9 | Bright |
| 28 | 5.0 | Bright |
| 29 | 5.0 | Bright |
| 30 | 5.0 | Bright |
| 31 | 5.0 | Bright |
Hazard calendar for Mumbai
In December, Mumbai sits inside its cyclone season. The full year is below, with each hazard's peak months called out.
Mumbai sits in the North Indian Ocean cyclone zone; the season peaks May and October–November.
Mumbai's monsoon runs June–September, when most of the year's rain falls.
Mumbai sees seasonal dust haze (July–August), heaviest in July.
Is December a good time to visit Mumbai?
Our two travel scores rate December for general sightseeing and for beach or pool weather — 0 (poor) to 10 (ideal).
December is a reasonable time to visit Mumbai for sightseeing. The water and warmth also suit a beach or pool day.
What to pack for Mumbai in December
From December's temperature range, rain chance, sun and wind — what's worth putting in the bag.
In December, Mumbai sees daytime highs around 30°C and nights near 20°C. Pack light clothes. Worth having: sun protection.
Sea temperature near Mumbai in December
The nearest coast averages about 27°C in December — the other half of the beach question. The full-year curve and swim-comfort zones are below.
The sea at the nearest coast (about 22 km away) is warmest in May at about 30°C and coldest in January near 25°C.
The water stays above 20°C all year — warm enough for a swim any month.
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Sea temperature (°C) | 25 | 25 | 27 | 29 | 30 | 30 | 29 | 28 | 28 | 29 | 28 | 27 |
| Comfort | Warm | Warm | Warm | Tropical | Tropical | Tropical | Tropical | Warm | Tropical | Tropical | Tropical | Warm |
| Sea temperature (°C) | Comfort | |
|---|---|---|
| Jan | 25 | Warm |
| Feb | 25 | Warm |
| Mar | 27 | Warm |
| Apr | 29 | Tropical |
| May | 30 | Tropical |
| Jun | 30 | Tropical |
| Jul | 29 | Tropical |
| Aug | 28 | Warm |
| Sep | 28 | Tropical |
| Oct | 29 | Tropical |
| Nov | 28 | Tropical |
| Dec | 27 | Warm |
UV index in Mumbai in December
Clear-sky midday UV in December peaks around 6 — enough to warrant sun protection. The full-year curve, shaded by WHO exposure level, is below.
Under clear skies, the midday UV index in Mumbai peaks around June 20 at about 12 (extreme) — sunscreen, a hat and midday shade are essential. It bottoms out near November 21 at about 5 (high).
The index reaches 3 or more — the level where the WHO recommends sun protection — every month of the year.
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| UV index (midday) | 7 | 8 | 11 | 11 | 10 | 12 | 11 | 11 | 11 | 9 | 5 | 6 |
| Level | Very high | Very high | Extreme | Extreme | Very high | Extreme | Extreme | Extreme | Extreme | Very high | High | High |
| UV index (midday) | Level | |
|---|---|---|
| Jan | 7 | Very high |
| Feb | 8 | Very high |
| Mar | 11 | Extreme |
| Apr | 11 | Extreme |
| May | 10 | Very high |
| Jun | 12 | Extreme |
| Jul | 11 | Extreme |
| Aug | 11 | Extreme |
| Sep | 11 | Extreme |
| Oct | 9 | Very high |
| Nov | 5 | High |
| Dec | 6 | High |
Air quality in Mumbai in December
Average fine-particle pollution (PM2.5) through the year — so you can see where December falls, not just the annual average.
Air quality in Mumbai is worst in February — around 74 µg/m³ PM2.5 (unhealthy), about 7.3× the cleanest month (August, 10 µg/m³).
Seasonal pattern from CAMS reanalysis, scaled to Mumbai's WHO annual average of 40 µg/m³.
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| PM2.5 (µg/m³) | 65 | 74 | 59 | 34 | 18 | 12 | 11 | 10 | 16 | 46 | 67 | 66 |
| Level | Unhealthy | Unhealthy | Unhealthy | Moderate | Moderate | Moderate | Good | Good | Moderate | Poor | Unhealthy | Unhealthy |
| PM2.5 (µg/m³) | Level | |
|---|---|---|
| Jan | 65 | Unhealthy |
| Feb | 74 | Unhealthy |
| Mar | 59 | Unhealthy |
| Apr | 34 | Moderate |
| May | 18 | Moderate |
| Jun | 12 | Moderate |
| Jul | 11 | Good |
| Aug | 10 | Good |
| Sep | 16 | Moderate |
| Oct | 46 | Poor |
| Nov | 67 | Unhealthy |
| Dec | 66 | Unhealthy |
Where is Mumbai?
Mumbai sits at 19.1°N, 72.9°E, 8 m above sea level, in India. The nearest listed city is Ellora, 261 km away.
Topography around Mumbai
How much the land rises and falls, and what covers it, within 3, 16 and 80 km of Mumbai.
Within 3 km, the terrain around Mumbai has only modest variations in elevation — a maximum elevation change of 61 m around an average of 10 m above sea level; within 16 km, significant variations in elevation — a maximum elevation change of 472 m; within 80 km, very significant variations in elevation — a maximum elevation change of 1,227 m.
The land around Mumbai is covered by artificial surfaces (69%) and trees (20%) within 3 km, water (43%) and artificial surfaces (28%) within 16 km, and water (35%) and trees (30%) within 80 km.
India travel facts
- Travel advisory
- Level 2
- Exercise Increased Caution
- Power plugs
- Type C / D / M
- 230 V · 50 Hz
- Prices
- ≈ 23% of US
- price level, 2025
- GDP per capita
- $2,702
- 2025
- Happiness
- 4.5 / 10
- World Happiness, 2025
- Safe drinking water
- 76%
- of population, 2024
- Homicide rate
- 2.8
- per 100k, 2022
- Road deaths
- 15.6
- per 100k/yr, 2019
- Income group
- Lower middle
- World Bank
- English
- Low
- EF EPI 484
- Religion
Sources: World Bank, US State Department, World Happiness Report, WHO/UNICEF, EF EPI, CIA World Factbook.
Data sources
Temperature, precipitation, cloud, humidity, wind and solar figures are a 1991–2020 climatology for Mumbai (19.0728°, 72.8826°, elevation 8 m), computed from hourly ERA5 reanalysis — contains modified Copernicus Climate Change Service information. Sun figures are astronomical calculations, not observations. City data © GeoNames, CC BY 4.0. Map outlines from Natural Earth (public domain); interactive map © Google. Tropical-cyclone seasons are the published climatological basin seasons (NOAA National Hurricane Center / regional warning centres). Sea temperatures are the NOAA OISST v2.1 1991–2020 monthly climatology (public domain), sampled at the nearest ocean point. UV index is derived from CAMS (Copernicus Atmosphere Monitoring Service) clear-sky UV data — contains modified Copernicus Atmosphere Monitoring Service information. Monthly air-quality (PM2.5) seasonality is from the CAMS EAC4 reanalysis (Copernicus Atmosphere Monitoring Service), scaled to the WHO annual mean where available. Topography is sampled from the Copernicus DEM GLO-90 elevation model (© ESA/Airbus) and ESA WorldCover 2021 land cover (CC BY 4.0).