Calcutta weather in January
In January, Calcutta sees average daytime highs of 29°C and overnight lows near 20°C, with 140 mm of rain across 14.7 wet days and about 13.4 hours of daylight. It is the 2nd-warmest and 1st-wettest month of the year here.
Day-to-day highs hold fairly steady near 29°C through the month. The sky is clear or mostly clear about 28% of the time in January, and the air most often feels muggy.
Daylight stretches from about 13 h 30 min at the start of January to 13 h 12 min by month's end. Set against the rest of the year, January is Calcutta's 10th-clearest and 4th-windiest month. For the whole year in context, see Calcutta's year-round climate.
- Daytime high
- 29°
- 2nd warmest
- Overnight low
- 20°
- 12th coldest
- Rainfall
- 140 mm
- 14.7 wet days
- Daylight
- 13 h 24 min
- 5:22 AM – 6:46 PM
- Cloud cover
- 60%
- 10th clearest
- Wind
- 9 km/h
- 4th windiest
- Solar energy
- 5.77 kWh/m²
- Travel score
- 4.8
- out of 10
Temperature in January
Day-to-day highs hold fairly steady near 29°C through the month.
A typical January day in Calcutta reaches about 29°C in the afternoon and slips back to 20°C overnight — a 9°C spread between the day's warmth and the night's chill. On most days the high lands between 24°C and 33°C. Set against its neighbours, January runs on par with December and on par with February.
| 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) | 29 | 29 | 29 | 29 | 29 | 29 | 29 | 29 | 29 | 29 | 29 | 29 | 29 | 29 | 29 | 29 | 29 | 29 | 29 | 29 | 29 | 29 | 29 | 29 | 29 | 29 | 29 | 29 | 29 | 29 | 29 |
| Avg low (°C) | 20 | 20 | 20 | 20 | 20 | 20 | 20 | 20 | 20 | 20 | 20 | 20 | 20 | 20 | 20 | 20 | 20 | 20 | 20 | 20 | 20 | 20 | 20 | 20 | 20 | 20 | 20 | 20 | 20 | 20 | 20 |
| Avg high (°C) | Avg low (°C) | |
|---|---|---|
| 1 | 29 | 20 |
| 2 | 29 | 20 |
| 3 | 29 | 20 |
| 4 | 29 | 20 |
| 5 | 29 | 20 |
| 6 | 29 | 20 |
| 7 | 29 | 20 |
| 8 | 29 | 20 |
| 9 | 29 | 20 |
| 10 | 29 | 20 |
| 11 | 29 | 20 |
| 12 | 29 | 20 |
| 13 | 29 | 20 |
| 14 | 29 | 20 |
| 15 | 29 | 20 |
| 16 | 29 | 20 |
| 17 | 29 | 20 |
| 18 | 29 | 20 |
| 19 | 29 | 20 |
| 20 | 29 | 20 |
| 21 | 29 | 20 |
| 22 | 29 | 20 |
| 23 | 29 | 20 |
| 24 | 29 | 20 |
| 25 | 29 | 20 |
| 26 | 29 | 20 |
| 27 | 29 | 20 |
| 28 | 29 | 20 |
| 29 | 29 | 20 |
| 30 | 29 | 20 |
| 31 | 29 | 20 |
Calcutta weather by month
How January compares with the rest of the year at a glance. January is the 2nd-warmest and 1st-wettest month here — the current month is highlighted below.
| Month | High / Low (°C) | Rainfall (mm) | Wet days | Daylight (hours) | Travel score |
|---|---|---|---|---|---|
| Jan | 29° / 20° | 140 | 14.7 | 13.4 | 4.8 |
| Feb | 29° / 20° | 121 | 13.2 | 12.9 | 4.9 |
| Mar | 29° / 19° | 90 | 11.8 | 12.2 | 5.7 |
| Apr | 27° / 17° | 46 | 7.6 | 11.4 | 7.2 |
| May | 26° / 13° | 15 | 3 | 10.8 | 8.5 |
| Jun | 24° / 11° | 8 | 2 | 10.5 | 9.1 |
| Jul | 24° / 10° | 11 | 2.3 | 10.6 | 8.9 |
| Aug | 25° / 12° | 16 | 3.3 | 11.1 | 8.6 |
| Sep | 27° / 15° | 30 | 5.3 | 11.8 | 7.6 |
| Oct | 27° / 17° | 56 | 9.8 | 12.6 | 6.5 |
| Nov | 28° / 18° | 104 | 12.8 | 13.2 | 5.4 |
| Dec | 29° / 19° | 132 | 15.1 | 13.5 | 4.9 |
Cloud cover in January
The sky is clear or mostly clear about 28% of the time in January.
Beyond those clear spells, partly cloudy skies cover about 19% of January, with mostly cloudy or overcast conditions the remaining 53%.
| 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 (%) | 49 | 49 | 49 | 49 | 49 | 49 | 49 | 49 | 49 | 48 | 48 | 47 | 47 | 46 | 46 | 45 | 45 | 45 | 44 | 44 | 44 | 44 | 44 | 44 | 47 | 47 | 47 | 49 | 49 | 49 | 51 |
| Cloudier (%) | 51 | 51 | 51 | 51 | 51 | 51 | 51 | 51 | 51 | 52 | 52 | 53 | 53 | 54 | 54 | 55 | 55 | 55 | 56 | 56 | 56 | 56 | 56 | 56 | 53 | 53 | 53 | 51 | 51 | 51 | 49 |
| Clearer (%) | Cloudier (%) | |
|---|---|---|
| 1 | 49 | 51 |
| 2 | 49 | 51 |
| 3 | 49 | 51 |
| 4 | 49 | 51 |
| 5 | 49 | 51 |
| 6 | 49 | 51 |
| 7 | 49 | 51 |
| 8 | 49 | 51 |
| 9 | 49 | 51 |
| 10 | 48 | 52 |
| 11 | 48 | 52 |
| 12 | 47 | 53 |
| 13 | 47 | 53 |
| 14 | 46 | 54 |
| 15 | 46 | 54 |
| 16 | 45 | 55 |
| 17 | 45 | 55 |
| 18 | 45 | 55 |
| 19 | 44 | 56 |
| 20 | 44 | 56 |
| 21 | 44 | 56 |
| 22 | 44 | 56 |
| 23 | 44 | 56 |
| 24 | 44 | 56 |
| 25 | 47 | 53 |
| 26 | 47 | 53 |
| 27 | 47 | 53 |
| 28 | 49 | 51 |
| 29 | 49 | 51 |
| 30 | 49 | 51 |
| 31 | 51 | 49 |
Chance of precipitation in January
Calcutta gets around 140 mm of rain over 14.7 wet days in January, the wettest month. The line is the day-by-day chance of measurable precipitation.
Day to day, the chance of measurable rain averages around 48% and peaks near 50% 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 (%) | 45 | 45 | 45 | 45 | 45 | 46 | 46 | 47 | 47 | 48 | 48 | 49 | 49 | 50 | 50 | 50 | 50 | 50 | 50 | 50 | 50 | 49 | 49 | 48 | 48 | 48 | 47 | 47 | 47 | 48 | 47 |
| Rain chance (%) | |
|---|---|
| 1 | 45 |
| 2 | 45 |
| 3 | 45 |
| 4 | 45 |
| 5 | 45 |
| 6 | 46 |
| 7 | 46 |
| 8 | 47 |
| 9 | 47 |
| 10 | 48 |
| 11 | 48 |
| 12 | 49 |
| 13 | 49 |
| 14 | 50 |
| 15 | 50 |
| 16 | 50 |
| 17 | 50 |
| 18 | 50 |
| 19 | 50 |
| 20 | 50 |
| 21 | 50 |
| 22 | 49 |
| 23 | 49 |
| 24 | 48 |
| 25 | 48 |
| 26 | 48 |
| 27 | 47 |
| 28 | 47 |
| 29 | 47 |
| 30 | 48 |
| 31 | 47 |
Humidity in January
Most of January feels muggy — the stacked bands show each day's mix of comfort levels, read off the dew point.
By dew point, January lands in the muggy band about 53% of days. Sticky, muggy-or-worse air turns up on roughly 64% 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 | 0 | 0 | 0 | 0 | 0 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 0 | 0 |
| Comfortable (%) | 6 | 7 | 7 | 7 | 7 | 7 | 7 | 7 | 7 | 7 | 7 | 7 | 7 | 6 | 6 | 6 | 6 | 6 | 5 | 5 | 5 | 5 | 5 | 5 | 4 | 4 | 4 | 4 | 4 | 3 | 3 |
| Humid (%) | 31 | 30 | 30 | 30 | 30 | 30 | 31 | 31 | 31 | 31 | 31 | 31 | 31 | 31 | 31 | 31 | 31 | 30 | 30 | 30 | 30 | 29 | 29 | 29 | 29 | 29 | 28 | 28 | 28 | 28 | 28 |
| Muggy (%) | 54 | 54 | 54 | 54 | 54 | 54 | 54 | 54 | 53 | 53 | 52 | 52 | 52 | 52 | 52 | 52 | 51 | 52 | 53 | 53 | 52 | 53 | 53 | 53 | 54 | 54 | 55 | 55 | 55 | 57 | 57 |
| Oppressive (%) | 9 | 9 | 9 | 9 | 9 | 9 | 8 | 8 | 9 | 9 | 9 | 9 | 9 | 10 | 10 | 10 | 11 | 11 | 11 | 11 | 12 | 12 | 12 | 12 | 12 | 12 | 12 | 12 | 12 | 12 | 12 |
| Dry (%) | Comfortable (%) | Humid (%) | Muggy (%) | Oppressive (%) | |
|---|---|---|---|---|---|
| 1 | 0 | 6 | 31 | 54 | 9 |
| 2 | 0 | 7 | 30 | 54 | 9 |
| 3 | 0 | 7 | 30 | 54 | 9 |
| 4 | 0 | 7 | 30 | 54 | 9 |
| 5 | 0 | 7 | 30 | 54 | 9 |
| 6 | 0 | 7 | 30 | 54 | 9 |
| 7 | 0 | 7 | 31 | 54 | 8 |
| 8 | 0 | 7 | 31 | 54 | 8 |
| 9 | 0 | 7 | 31 | 53 | 9 |
| 10 | 0 | 7 | 31 | 53 | 9 |
| 11 | 1 | 7 | 31 | 52 | 9 |
| 12 | 1 | 7 | 31 | 52 | 9 |
| 13 | 1 | 7 | 31 | 52 | 9 |
| 14 | 1 | 6 | 31 | 52 | 10 |
| 15 | 1 | 6 | 31 | 52 | 10 |
| 16 | 1 | 6 | 31 | 52 | 10 |
| 17 | 1 | 6 | 31 | 51 | 11 |
| 18 | 1 | 6 | 30 | 52 | 11 |
| 19 | 1 | 5 | 30 | 53 | 11 |
| 20 | 1 | 5 | 30 | 53 | 11 |
| 21 | 1 | 5 | 30 | 52 | 12 |
| 22 | 1 | 5 | 29 | 53 | 12 |
| 23 | 1 | 5 | 29 | 53 | 12 |
| 24 | 1 | 5 | 29 | 53 | 12 |
| 25 | 1 | 4 | 29 | 54 | 12 |
| 26 | 1 | 4 | 29 | 54 | 12 |
| 27 | 1 | 4 | 28 | 55 | 12 |
| 28 | 1 | 4 | 28 | 55 | 12 |
| 29 | 1 | 4 | 28 | 55 | 12 |
| 30 | 0 | 3 | 28 | 57 | 12 |
| 31 | 0 | 3 | 28 | 57 | 12 |
Wind in January
Winds average 9 km/h in January.
Across January, daily wind ranges from about 8 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) | 8 | 8 | 8 | 8 | 9 | 9 | 9 | 9 | 9 | 9 | 9 | 9 | 9 | 9 | 9 | 9 | 9 | 9 | 9 | 9 | 9 | 9 | 9 | 9 | 9 | 9 | 8 | 8 | 8 | 8 | 8 |
| 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 | 8 | calm |
| 2 | 8 | calm |
| 3 | 8 | calm |
| 4 | 8 | 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 | 8 | calm |
| 28 | 8 | calm |
| 29 | 8 | calm |
| 30 | 8 | calm |
| 31 | 8 | calm |
Sunrise & sunset in January
Daylight runs from about 13 h 30 min at the start of January to 13 h 12 min by month's end. The lit band spans sunrise to sunset each day.
Days shrink by about 18 minutes over January. Sunrise moves from 5:12 AM to 5:33 AM, and sunset from 6:44 PM to 6:43 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) | 13.5 | 13.5 | 13.5 | 13.5 | 13.5 | 13.5 | 13.5 | 13.5 | 13.5 | 13.5 | 13.5 | 13.4 | 13.4 | 13.4 | 13.4 | 13.4 | 13.4 | 13.4 | 13.4 | 13.3 | 13.3 | 13.3 | 13.3 | 13.3 | 13.3 | 13.3 | 13.2 | 13.2 | 13.2 | 13.2 | 13.2 |
| Sunrise (AM) | 5:12 | 5:13 | 5:14 | 5:14 | 5:15 | 5:16 | 5:16 | 5:17 | 5:18 | 5:18 | 5:19 | 5:20 | 5:20 | 5:21 | 5:22 | 5:22 | 5:23 | 5:24 | 5:25 | 5:25 | 5:26 | 5:27 | 5:28 | 5:28 | 5:29 | 5:30 | 5:30 | 5:31 | 5:32 | 5:33 | 5:33 |
| Sunset (PM) | 6:44 | 6:44 | 6:45 | 6:45 | 6:45 | 6:45 | 6:45 | 6:46 | 6:46 | 6:46 | 6:46 | 6:46 | 6:46 | 6:46 | 6:46 | 6:46 | 6:46 | 6:46 | 6:46 | 6:46 | 6:46 | 6:46 | 6:46 | 6:45 | 6:45 | 6:45 | 6:45 | 6:44 | 6:44 | 6:44 | 6:43 |
| Daylight (h) | Sunrise (AM) | Sunset (PM) | |
|---|---|---|---|
| 1 | 13.5 | 5:12 | 6:44 |
| 2 | 13.5 | 5:13 | 6:44 |
| 3 | 13.5 | 5:14 | 6:45 |
| 4 | 13.5 | 5:14 | 6:45 |
| 5 | 13.5 | 5:15 | 6:45 |
| 6 | 13.5 | 5:16 | 6:45 |
| 7 | 13.5 | 5:16 | 6:45 |
| 8 | 13.5 | 5:17 | 6:46 |
| 9 | 13.5 | 5:18 | 6:46 |
| 10 | 13.5 | 5:18 | 6:46 |
| 11 | 13.5 | 5:19 | 6:46 |
| 12 | 13.4 | 5:20 | 6:46 |
| 13 | 13.4 | 5:20 | 6:46 |
| 14 | 13.4 | 5:21 | 6:46 |
| 15 | 13.4 | 5:22 | 6:46 |
| 16 | 13.4 | 5:22 | 6:46 |
| 17 | 13.4 | 5:23 | 6:46 |
| 18 | 13.4 | 5:24 | 6:46 |
| 19 | 13.4 | 5:25 | 6:46 |
| 20 | 13.3 | 5:25 | 6:46 |
| 21 | 13.3 | 5:26 | 6:46 |
| 22 | 13.3 | 5:27 | 6:46 |
| 23 | 13.3 | 5:28 | 6:46 |
| 24 | 13.3 | 5:28 | 6:45 |
| 25 | 13.3 | 5:29 | 6:45 |
| 26 | 13.3 | 5:30 | 6:45 |
| 27 | 13.2 | 5:30 | 6:45 |
| 28 | 13.2 | 5:31 | 6:44 |
| 29 | 13.2 | 5:32 | 6:44 |
| 30 | 13.2 | 5:33 | 6:44 |
| 31 | 13.2 | 5:33 | 6:43 |
Solar energy in January
Average shortwave solar energy reaching the ground each day in January, about 5.77 kWh/m² — the sunniest month for solar.
For context, solar energy here swings from a low near 3.69 kWh/m² to a high of 5.77 kWh/m² in January across the year — January's 5.77 kWh/m² sits near the top of that range.
| 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) | 5.9 | 5.9 | 5.9 | 5.9 | 5.9 | 5.9 | 5.9 | 5.8 | 5.8 | 5.8 | 5.8 | 5.8 | 5.7 | 5.7 | 5.7 | 5.7 | 5.7 | 5.7 | 5.7 | 5.7 | 5.7 | 5.7 | 5.7 | 5.7 | 5.7 | 5.7 | 5.7 | 5.7 | 5.8 | 5.8 | 5.8 |
| 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 | 5.9 | Bright |
| 2 | 5.9 | Bright |
| 3 | 5.9 | Bright |
| 4 | 5.9 | Bright |
| 5 | 5.9 | Bright |
| 6 | 5.9 | Bright |
| 7 | 5.9 | Bright |
| 8 | 5.8 | Bright |
| 9 | 5.8 | Bright |
| 10 | 5.8 | Bright |
| 11 | 5.8 | Bright |
| 12 | 5.8 | Bright |
| 13 | 5.7 | Bright |
| 14 | 5.7 | Bright |
| 15 | 5.7 | Bright |
| 16 | 5.7 | Bright |
| 17 | 5.7 | Bright |
| 18 | 5.7 | Bright |
| 19 | 5.7 | Bright |
| 20 | 5.7 | Bright |
| 21 | 5.7 | Bright |
| 22 | 5.7 | Bright |
| 23 | 5.7 | Bright |
| 24 | 5.7 | Bright |
| 25 | 5.7 | Bright |
| 26 | 5.7 | Bright |
| 27 | 5.7 | Bright |
| 28 | 5.7 | Bright |
| 29 | 5.8 | Bright |
| 30 | 5.8 | Bright |
| 31 | 5.8 | Bright |
Hazard calendar for Calcutta
In January, Calcutta sits inside its rainy season season. The full year is below, with each hazard's peak months called out.
Calcutta's rainy season runs November–March, when most of the year's rain falls.
Is January a good time to visit Calcutta?
Our two travel scores rate January for general sightseeing and for beach or pool weather — 0 (poor) to 10 (ideal).
January is a reasonable time to visit Calcutta for sightseeing. The water and warmth also suit a beach or pool day.
What to pack for Calcutta in January
From January's temperature range, rain chance, sun and wind — what's worth putting in the bag.
In January, Calcutta sees daytime highs around 29°C and nights near 20°C. Pack light clothes and rain gear. Worth having: sun protection. About 15 days see rain.
UV index in Calcutta in January
Clear-sky midday UV in January peaks around 14 (very high — sun protection essential). The full-year curve, shaded by WHO exposure level, is below.
Under clear skies, the midday UV index in Calcutta peaks around January 20 at about 14 (extreme) — sunscreen, a hat and midday shade are essential. It bottoms out near June 21 at about 5 (moderate).
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) | 14 | 13 | 12 | 8 | 6 | 5 | 5 | 7 | 8 | 10 | 12 | 13 |
| Level | Extreme | Extreme | Extreme | Very high | High | Moderate | High | High | Very high | Very high | Extreme | Extreme |
| UV index (midday) | Level | |
|---|---|---|
| Jan | 14 | Extreme |
| Feb | 13 | Extreme |
| Mar | 12 | Extreme |
| Apr | 8 | Very high |
| May | 6 | High |
| Jun | 5 | Moderate |
| Jul | 5 | High |
| Aug | 7 | High |
| Sep | 8 | Very high |
| Oct | 10 | Very high |
| Nov | 12 | Extreme |
| Dec | 13 | Extreme |
Air quality in Calcutta in January
Average fine-particle pollution (PM2.5) through the year — so you can see where January falls, not just the annual average.
Air quality in Calcutta is worst in July — around 32 µg/m³ PM2.5 (moderate), about 2.6× the cleanest month (January, 12 µg/m³).
Modeled monthly averages (CAMS reanalysis, 2015–2024).
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| PM2.5 (µg/m³) | 12 | 13 | 17 | 23 | 31 | 30 | 32 | 30 | 26 | 19 | 18 | 13 |
| Level | Moderate | Moderate | Moderate | Moderate | Moderate | Moderate | Moderate | Moderate | Moderate | Moderate | Moderate | Moderate |
| PM2.5 (µg/m³) | Level | |
|---|---|---|
| Jan | 12 | Moderate |
| Feb | 13 | Moderate |
| Mar | 17 | Moderate |
| Apr | 23 | Moderate |
| May | 31 | Moderate |
| Jun | 30 | Moderate |
| Jul | 32 | Moderate |
| Aug | 30 | Moderate |
| Sep | 26 | Moderate |
| Oct | 19 | Moderate |
| Nov | 18 | Moderate |
| Dec | 13 | Moderate |
Where is Calcutta?
Calcutta sits at 25.0°S, 31.2°E, 435 m above sea level, in South Africa. The nearest listed city is Mkhuhlu, 1.0 km away.
Topography around Calcutta
How much the land rises and falls, and what covers it, within 3, 16 and 80 km of Calcutta.
Within 3 km, the terrain around Calcutta has only modest variations in elevation — a maximum elevation change of 118 m around an average of 432 m above sea level; within 16 km, significant variations in elevation — a maximum elevation change of 526 m; within 80 km, very significant variations in elevation — a maximum elevation change of 2,118 m.
The land around Calcutta is covered by artificial surfaces (36%) and grassland (32%) within 3 km, grassland (49%) and trees (22%) within 16 km, and grassland (46%), trees (27%) and shrubs (22%) within 80 km.
South Africa travel facts
- Travel advisory
- Level 2
- Exercise Increased Caution
- Power plugs
- Type C / M / N
- 230 V · 50 Hz
- Prices
- ≈ 41% of US
- price level, 2025
- GDP per capita
- $6,598
- 2025
- Happiness
- 5.0 / 10
- World Happiness, 2025
- Safe drinking water
- 68%
- of population, 2024
- Homicide rate
- 43.7
- per 100k, 2022
- Road deaths
- 22.2
- per 100k/yr, 2019
- Income group
- Upper middle
- World Bank
- English
- Very high
- EF EPI 602
- 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 Calcutta (-24.9832°, 31.2349°, elevation 435 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. 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).