Kolkata, West Bengal, India Historical Air Quality Analysis
Dive into detailed Air Quality Insights with historical data, monthly patterns, and yearly trends at your fingertips!
Good
050
Moderate
100
Poor
150
Unhealthy
200
Severe
300
Hazardous
301+
October Air Quality Analysis
Kolkata, West Bengal, India
2021
2022
2023
2024
2025
AQI
.
Days
AQI Trends: Highest and Lowest
Highest AQI recorded on
27th Oct 2022
173AQILowest AQI recorded on
6th Oct 2022
32AQISame Day Analysis (10th October ):
On this day, AQI across the 5 years varied significantly: 2025 ranks 3rd highest AQI at 129 of Poor air quality, showing improvement over 2023 and 2021 on the same day.
Download 2024 Annual Data
World Air Quality Report
Day & Night AQI Trend: 10th Oct - 11th Oct 2025
Kolkata, West Bengal, India
AQI
Day
Night
.
5 AM10th Oct 2025
5 PM
4 AM11th Oct 2025
Day time
Avg. Highest Time
12PM10th Oct
138AQI
Avg. Lowest Time
4PM10th Oct
122AQI
Night time
Avg. Highest Time
6PM10th Oct
126AQI
Avg. Lowest Time
4AM11th Oct
90AQI
In the last 24 hours,
Kolkata's AQI reached its highest point of 138 at 12 PM during the Day, while the lowest point, 90, was recorded at 4 AM during the Night between 10th Oct and 11th Oct 2025.
Day & Night AQI Trend : Sep - Oct 2025
Kolkata, West Bengal, India
SepOct
11th - 12th12th - 13th13th - 14th14th - 15th15th - 16th16th - 17th17th - 18th18th - 19th19th - 20th20th - 21st21st - 22nd22nd - 23rd23rd - 24th24th - 25th25th - 26th26th - 27th27th - 28th28th - 29th29th - 30th30th - 01st01st - 02nd02nd - 03rd03rd - 04th04th - 05th05th - 06th06th - 07th07th - 08th08th - 09th09th - 10th10th - 11th11th
Day
Night
11th Sep 2025885 AMAQI
11th Sep 2025996 AMAQI
11th Sep 2025867 AMAQI
11th Sep 2025898 AMAQI
11th Sep 2025909 AMAQI
11th Sep 20259910 AMAQI
11th Sep 202510811 AMAQI
11th Sep 202510212 PMAQI
11th Sep 20251111 PMAQI
11th Sep 2025942 PMAQI
11th Sep 2025993 PMAQI
11th Sep 2025854 PMAQI
11th Sep 2025865 PMAQI
11th Sep 2025846 PMAQI
11th Sep 2025877 PMAQI
11th Sep 2025848 PMAQI
11th Sep 2025909 PMAQI
11th Sep 20258310 PMAQI
11th Sep 20258011 PMAQI
12th Sep 20258112 AMAQI
12th Sep 2025941 AMAQI
12th Sep 2025942 AMAQI
12th Sep 2025903 AMAQI
12th Sep 2025944 AMAQI
30°C27/34°C
12th Sep 2025795 AMAQI
12th Sep 2025646 AMAQI
12th Sep 2025897 AMAQI
12th Sep 2025698 AMAQI
12th Sep 2025889 AMAQI
12th Sep 20258610 AMAQI
12th Sep 20259611 AMAQI
12th Sep 202510212 PMAQI
12th Sep 2025781 PMAQI
12th Sep 2025842 PMAQI
12th Sep 2025833 PMAQI
12th Sep 2025874 PMAQI
12th Sep 2025825 PMAQI
12th Sep 2025856 PMAQI
12th Sep 2025837 PMAQI
12th Sep 2025808 PMAQI
12th Sep 2025889 PMAQI
12th Sep 20259210 PMAQI
12th Sep 20258311 PMAQI
13th Sep 20258112 AMAQI
13th Sep 2025871 AMAQI
13th Sep 2025842 AMAQI
13th Sep 2025833 AMAQI
13th Sep 2025834 AMAQI
29°C27/31°C
13th Sep 2025775 AMAQI
13th Sep 2025806 AMAQI
13th Sep 2025807 AMAQI
13th Sep 2025868 AMAQI
13th Sep 2025909 AMAQI
13th Sep 20256810 AMAQI
13th Sep 20258811 AMAQI
13th Sep 20257512 PMAQI
13th Sep 2025621 PMAQI
13th Sep 2025692 PMAQI
13th Sep 2025873 PMAQI
13th Sep 2025834 PMAQI
13th Sep 2025765 PMAQI
13th Sep 2025866 PMAQI
13th Sep 2025807 PMAQI
13th Sep 2025798 PMAQI
13th Sep 2025839 PMAQI
13th Sep 20258510 PMAQI
13th Sep 20259211 PMAQI
14th Sep 20258512 AMAQI
14th Sep 2025851 AMAQI
14th Sep 2025822 AMAQI
14th Sep 2025843 AMAQI
14th Sep 2025844 AMAQI
29°C26/32°C
14th Sep 2025865 AMAQI
14th Sep 20251056 AMAQI
14th Sep 2025617 AMAQI
14th Sep 2025658 AMAQI
14th Sep 2025679 AMAQI
14th Sep 20256710 AMAQI
14th Sep 20257311 AMAQI
14th Sep 20257412 PMAQI
14th Sep 2025661 PMAQI
14th Sep 2025772 PMAQI
14th Sep 2025733 PMAQI
14th Sep 2025704 PMAQI
14th Sep 2025785 PMAQI
14th Sep 2025776 PMAQI
14th Sep 2025797 PMAQI
14th Sep 2025808 PMAQI
14th Sep 2025799 PMAQI
14th Sep 20257610 PMAQI
14th Sep 20257711 PMAQI
15th Sep 20258512 AMAQI
15th Sep 2025811 AMAQI
15th Sep 2025822 AMAQI
15th Sep 2025813 AMAQI
15th Sep 2025804 AMAQI
29°C26/32°C
15th Sep 2025725 AMAQI
15th Sep 2025666 AMAQI
15th Sep 2025717 AMAQI
15th Sep 2025608 AMAQI
15th Sep 2025619 AMAQI
15th Sep 20256210 AMAQI
15th Sep 20256811 AMAQI
15th Sep 20257012 PMAQI
15th Sep 2025711 PMAQI
15th Sep 2025682 PMAQI
15th Sep 2025683 PMAQI
15th Sep 2025674 PMAQI
15th Sep 2025725 PMAQI
15th Sep 2025746 PMAQI
15th Sep 2025747 PMAQI
15th Sep 2025778 PMAQI
15th Sep 2025829 PMAQI
15th Sep 20257810 PMAQI
15th Sep 20257711 PMAQI
16th Sep 20257812 AMAQI
16th Sep 2025751 AMAQI
16th Sep 2025762 AMAQI
16th Sep 2025753 AMAQI
16th Sep 2025764 AMAQI
27°C26/28°C
16th Sep 2025715 AMAQI
16th Sep 2025616 AMAQI
16th Sep 2025577 AMAQI
16th Sep 2025658 AMAQI
16th Sep 2025599 AMAQI
16th Sep 20256010 AMAQI
16th Sep 20256111 AMAQI
16th Sep 20256812 PMAQI
16th Sep 2025661 PMAQI
16th Sep 2025622 PMAQI
16th Sep 2025633 PMAQI
16th Sep 2025724 PMAQI
16th Sep 2025715 PMAQI
16th Sep 2025726 PMAQI
16th Sep 2025737 PMAQI
16th Sep 2025768 PMAQI
16th Sep 2025719 PMAQI
16th Sep 20257010 PMAQI
16th Sep 20257211 PMAQI
17th Sep 20257212 AMAQI
17th Sep 2025701 AMAQI
17th Sep 2025702 AMAQI
17th Sep 2025703 AMAQI
17th Sep 2025704 AMAQI
27°C25/31°C
17th Sep 2025705 AMAQI
17th Sep 2025646 AMAQI
17th Sep 2025687 AMAQI
17th Sep 2025648 AMAQI
17th Sep 2025649 AMAQI
17th Sep 20256210 AMAQI
17th Sep 20256711 AMAQI
17th Sep 20257112 PMAQI
17th Sep 2025661 PMAQI
17th Sep 2025682 PMAQI
17th Sep 2025683 PMAQI
17th Sep 2025694 PMAQI
17th Sep 2025645 PMAQI
17th Sep 2025696 PMAQI
17th Sep 2025717 PMAQI
17th Sep 2025738 PMAQI
17th Sep 2025729 PMAQI
17th Sep 20257310 PMAQI
17th Sep 20257511 PMAQI
18th Sep 20257412 AMAQI
18th Sep 2025701 AMAQI
18th Sep 2025692 AMAQI
18th Sep 2025693 AMAQI
18th Sep 2025694 AMAQI
28°C26/33°C
18th Sep 2025705 AMAQI
18th Sep 2025696 AMAQI
18th Sep 2025697 AMAQI
18th Sep 2025848 AMAQI
18th Sep 2025719 AMAQI
18th Sep 20256910 AMAQI
18th Sep 20256911 AMAQI
18th Sep 20257512 PMAQI
18th Sep 2025691 PMAQI
18th Sep 2025722 PMAQI
18th Sep 2025783 PMAQI
18th Sep 2025754 PMAQI
18th Sep 2025725 PMAQI
18th Sep 2025726 PMAQI
18th Sep 2025737 PMAQI
18th Sep 2025718 PMAQI
18th Sep 2025749 PMAQI
18th Sep 20257410 PMAQI
18th Sep 20258211 PMAQI
19th Sep 20257912 AMAQI
19th Sep 2025711 AMAQI
19th Sep 2025712 AMAQI
19th Sep 2025703 AMAQI
19th Sep 2025714 AMAQI
29°C26/33°C
19th Sep 2025725 AMAQI
19th Sep 2025746 AMAQI
19th Sep 2025757 AMAQI
19th Sep 2025758 AMAQI
19th Sep 2025749 AMAQI
19th Sep 20257910 AMAQI
19th Sep 20258411 AMAQI
19th Sep 20258612 PMAQI
19th Sep 2025911 PMAQI
19th Sep 2025872 PMAQI
19th Sep 2025903 PMAQI
19th Sep 2025944 PMAQI
19th Sep 2025825 PMAQI
19th Sep 2025816 PMAQI
19th Sep 2025897 PMAQI
19th Sep 2025888 PMAQI
19th Sep 2025899 PMAQI
19th Sep 20258910 PMAQI
19th Sep 20259211 PMAQI
20th Sep 20258712 AMAQI
20th Sep 2025761 AMAQI
20th Sep 2025762 AMAQI
20th Sep 2025763 AMAQI
20th Sep 2025764 AMAQI
30°C26/34°C
20th Sep 2025795 AMAQI
20th Sep 2025966 AMAQI
20th Sep 2025947 AMAQI
20th Sep 20251058 AMAQI
20th Sep 20251019 AMAQI
20th Sep 202511010 AMAQI
20th Sep 202511211 AMAQI
20th Sep 202511712 PMAQI
20th Sep 20251081 PMAQI
20th Sep 20251082 PMAQI
20th Sep 20251003 PMAQI
20th Sep 2025884 PMAQI
20th Sep 2025865 PMAQI
20th Sep 2025846 PMAQI
20th Sep 2025847 PMAQI
20th Sep 2025918 PMAQI
20th Sep 2025879 PMAQI
20th Sep 20258810 PMAQI
20th Sep 20259111 PMAQI
21st Sep 20259212 AMAQI
21st Sep 2025881 AMAQI
21st Sep 2025872 AMAQI
21st Sep 2025883 AMAQI
21st Sep 2025884 AMAQI
30°C27/34°C
21st Sep 2025955 AMAQI
21st Sep 20251206 AMAQI
21st Sep 20251157 AMAQI
21st Sep 20251198 AMAQI
21st Sep 20251209 AMAQI
21st Sep 202512010 AMAQI
21st Sep 202511911 AMAQI
21st Sep 202513112 PMAQI
21st Sep 20251201 PMAQI
21st Sep 20251212 PMAQI
21st Sep 20251223 PMAQI
21st Sep 20251144 PMAQI
21st Sep 20251115 PMAQI
21st Sep 20251136 PMAQI
21st Sep 20251087 PMAQI
21st Sep 20251158 PMAQI
21st Sep 20251109 PMAQI
21st Sep 202510110 PMAQI
21st Sep 202511111 PMAQI
22nd Sep 202511112 AMAQI
22nd Sep 20251071 AMAQI
22nd Sep 20251062 AMAQI
22nd Sep 20251033 AMAQI
22nd Sep 20251034 AMAQI
29°C26/34°C
22nd Sep 20251005 AMAQI
22nd Sep 2025926 AMAQI
22nd Sep 20251007 AMAQI
22nd Sep 20251138 AMAQI
22nd Sep 20251009 AMAQI
22nd Sep 202511210 AMAQI
22nd Sep 202510911 AMAQI
22nd Sep 202511312 PMAQI
22nd Sep 20251231 PMAQI
22nd Sep 20251102 PMAQI
22nd Sep 20251003 PMAQI
22nd Sep 2025914 PMAQI
22nd Sep 2025935 PMAQI
22nd Sep 2025886 PMAQI
22nd Sep 2025877 PMAQI
22nd Sep 2025878 PMAQI
22nd Sep 2025889 PMAQI
22nd Sep 20259110 PMAQI
22nd Sep 202510111 PMAQI
23rd Sep 20259412 AMAQI
23rd Sep 20251011 AMAQI
23rd Sep 20251052 AMAQI
23rd Sep 20251033 AMAQI
23rd Sep 20251054 AMAQI
27°C26/29°C
23rd Sep 2025975 AMAQI
23rd Sep 2025676 AMAQI
23rd Sep 2025697 AMAQI
23rd Sep 2025598 AMAQI
23rd Sep 2025609 AMAQI
23rd Sep 20255810 AMAQI
23rd Sep 20256011 AMAQI
23rd Sep 20256212 PMAQI
23rd Sep 2025601 PMAQI
23rd Sep 2025652 PMAQI
23rd Sep 2025653 PMAQI
23rd Sep 2025724 PMAQI
23rd Sep 2025795 PMAQI
23rd Sep 2025806 PMAQI
23rd Sep 2025817 PMAQI
23rd Sep 2025818 PMAQI
23rd Sep 2025839 PMAQI
23rd Sep 20258910 PMAQI
23rd Sep 20258611 PMAQI
24th Sep 20258712 AMAQI
24th Sep 2025891 AMAQI
24th Sep 2025862 AMAQI
24th Sep 2025843 AMAQI
24th Sep 2025864 AMAQI
27°C25/30°C
24th Sep 2025825 AMAQI
24th Sep 2025776 AMAQI
24th Sep 2025827 AMAQI
24th Sep 2025778 AMAQI
24th Sep 2025799 AMAQI
24th Sep 20257210 AMAQI
24th Sep 20257011 AMAQI
24th Sep 20256912 PMAQI
24th Sep 2025671 PMAQI
24th Sep 2025702 PMAQI
24th Sep 2025763 PMAQI
24th Sep 2025754 PMAQI
24th Sep 2025815 PMAQI
24th Sep 2025796 PMAQI
24th Sep 2025747 PMAQI
24th Sep 2025788 PMAQI
24th Sep 2025819 PMAQI
24th Sep 20258110 PMAQI
24th Sep 20258311 PMAQI
25th Sep 20258312 AMAQI
25th Sep 2025841 AMAQI
25th Sep 2025822 AMAQI
25th Sep 2025823 AMAQI
25th Sep 2025834 AMAQI
28°C25/32°C
25th Sep 2025805 AMAQI
25th Sep 2025796 AMAQI
25th Sep 2025777 AMAQI
25th Sep 2025848 AMAQI
25th Sep 2025829 AMAQI
25th Sep 20257810 AMAQI
25th Sep 20257511 AMAQI
25th Sep 20257212 PMAQI
25th Sep 2025721 PMAQI
25th Sep 2025682 PMAQI
25th Sep 2025643 PMAQI
25th Sep 2025634 PMAQI
25th Sep 2025625 PMAQI
25th Sep 2025646 PMAQI
25th Sep 2025707 PMAQI
25th Sep 2025758 PMAQI
25th Sep 2025779 PMAQI
25th Sep 20257110 PMAQI
25th Sep 20256811 PMAQI
26th Sep 20256912 AMAQI
26th Sep 2025741 AMAQI
26th Sep 2025762 AMAQI
26th Sep 2025763 AMAQI
26th Sep 2025794 AMAQI
29°C26/33°C
26th Sep 2025805 AMAQI
26th Sep 2025786 AMAQI
26th Sep 2025797 AMAQI
26th Sep 2025818 AMAQI
26th Sep 2025789 AMAQI
26th Sep 20257610 AMAQI
26th Sep 20257211 AMAQI
26th Sep 20256812 PMAQI
26th Sep 2025611 PMAQI
26th Sep 2025602 PMAQI
26th Sep 2025683 PMAQI
26th Sep 2025724 PMAQI
26th Sep 2025715 PMAQI
26th Sep 2025656 PMAQI
26th Sep 2025617 PMAQI
26th Sep 2025648 PMAQI
26th Sep 2025659 PMAQI
26th Sep 20256610 PMAQI
26th Sep 20256711 PMAQI
27th Sep 20256512 AMAQI
27th Sep 2025641 AMAQI
27th Sep 2025642 AMAQI
27th Sep 2025653 AMAQI
27th Sep 2025644 AMAQI
29°C26/33°C
27th Sep 2025635 AMAQI
27th Sep 2025636 AMAQI
27th Sep 2025627 AMAQI
27th Sep 2025628 AMAQI
27th Sep 2025639 AMAQI
27th Sep 20256410 AMAQI
27th Sep 20256311 AMAQI
27th Sep 20256212 PMAQI
27th Sep 2025641 PMAQI
27th Sep 2025662 PMAQI
27th Sep 2025653 PMAQI
27th Sep 2025664 PMAQI
27th Sep 2025665 PMAQI
27th Sep 2025666 PMAQI
27th Sep 2025677 PMAQI
27th Sep 2025678 PMAQI
27th Sep 2025689 PMAQI
27th Sep 20257110 PMAQI
27th Sep 20257211 PMAQI
28th Sep 20257112 AMAQI
28th Sep 2025701 AMAQI
28th Sep 2025692 AMAQI
28th Sep 2025703 AMAQI
28th Sep 2025714 AMAQI
29°C26/33°C
28th Sep 2025715 AMAQI
28th Sep 2025706 AMAQI
28th Sep 2025697 AMAQI
28th Sep 2025688 AMAQI
28th Sep 2025679 AMAQI
28th Sep 20256610 AMAQI
28th Sep 20256411 AMAQI
28th Sep 20256512 PMAQI
28th Sep 2025641 PMAQI
28th Sep 2025632 PMAQI
28th Sep 2025633 PMAQI
28th Sep 2025654 PMAQI
28th Sep 2025665 PMAQI
28th Sep 2025646 PMAQI
28th Sep 2025657 PMAQI
28th Sep 2025688 PMAQI
28th Sep 2025689 PMAQI
28th Sep 20256710 PMAQI
28th Sep 20256511 PMAQI
29th Sep 20256412 AMAQI
29th Sep 2025631 AMAQI
29th Sep 2025612 AMAQI
29th Sep 2025623 AMAQI
29th Sep 2025664 AMAQI
29°C26/33°C
29th Sep 2025675 AMAQI
29th Sep 2025616 AMAQI
29th Sep 2025627 AMAQI
29th Sep 2025648 AMAQI
29th Sep 2025639 AMAQI
29th Sep 20256410 AMAQI
29th Sep 20256611 AMAQI
29th Sep 20256912 PMAQI
29th Sep 2025681 PMAQI
29th Sep 2025672 PMAQI
29th Sep 2025673 PMAQI
29th Sep 2025694 PMAQI
29th Sep 2025725 PMAQI
29th Sep 2025716 PMAQI
29th Sep 2025747 PMAQI
29th Sep 2025728 PMAQI
29th Sep 2025789 PMAQI
29th Sep 20257910 PMAQI
29th Sep 20258311 PMAQI
30th Sep 20258612 AMAQI
30th Sep 2025821 AMAQI
30th Sep 2025842 AMAQI
30th Sep 2025823 AMAQI
30th Sep 2025784 AMAQI
29°C26/33°C
30th Sep 2025785 AMAQI
30th Sep 2025746 AMAQI
30th Sep 2025717 AMAQI
30th Sep 2025728 AMAQI
30th Sep 2025779 AMAQI
30th Sep 20258010 AMAQI
30th Sep 20258011 AMAQI
30th Sep 20257912 PMAQI
30th Sep 2025811 PMAQI
30th Sep 2025792 PMAQI
30th Sep 2025783 PMAQI
30th Sep 2025814 PMAQI
30th Sep 2025845 PMAQI
30th Sep 2025806 PMAQI
30th Sep 2025857 PMAQI
30th Sep 2025848 PMAQI
30th Sep 2025869 PMAQI
30th Sep 20259010 PMAQI
30th Sep 20259411 PMAQI
1st Oct 20258712 AMAQI
1st Oct 2025841 AMAQI
1st Oct 2025792 AMAQI
1st Oct 2025823 AMAQI
1st Oct 2025824 AMAQI
31°C27/35°C
1st Oct 2025775 AMAQI
1st Oct 2025726 AMAQI
1st Oct 2025687 AMAQI
1st Oct 2025668 AMAQI
1st Oct 2025679 AMAQI
1st Oct 20256810 AMAQI
1st Oct 20257111 AMAQI
1st Oct 20257312 PMAQI
1st Oct 2025731 PMAQI
1st Oct 2025762 PMAQI
1st Oct 2025693 PMAQI
1st Oct 2025664 PMAQI
1st Oct 2025715 PMAQI
1st Oct 2025756 PMAQI
1st Oct 2025737 PMAQI
1st Oct 2025688 PMAQI
1st Oct 2025629 PMAQI
1st Oct 20256110 PMAQI
1st Oct 20256011 PMAQI
2nd Oct 20256012 AMAQI
2nd Oct 2025591 AMAQI
2nd Oct 2025582 AMAQI
2nd Oct 2025583 AMAQI
2nd Oct 2025564 AMAQI
30°C27/34°C
2nd Oct 2025555 AMAQI
2nd Oct 2025556 AMAQI
2nd Oct 2025547 AMAQI
2nd Oct 2025548 AMAQI
2nd Oct 2025529 AMAQI
2nd Oct 20255510 AMAQI
2nd Oct 20255611 AMAQI
2nd Oct 20256212 PMAQI
2nd Oct 2025581 PMAQI
2nd Oct 2025622 PMAQI
2nd Oct 2025623 PMAQI
2nd Oct 2025544 PMAQI
2nd Oct 2025555 PMAQI
2nd Oct 2025596 PMAQI
2nd Oct 2025537 PMAQI
2nd Oct 2025528 PMAQI
2nd Oct 2025539 PMAQI
2nd Oct 20255410 PMAQI
2nd Oct 20255611 PMAQI
3rd Oct 20255612 AMAQI
3rd Oct 2025571 AMAQI
3rd Oct 2025562 AMAQI
3rd Oct 2025563 AMAQI
3rd Oct 2025544 AMAQI
26°C25/27°C
3rd Oct 2025565 AMAQI
3rd Oct 2025586 AMAQI
3rd Oct 2025577 AMAQI
3rd Oct 2025588 AMAQI
3rd Oct 2025579 AMAQI
3rd Oct 20256010 AMAQI
3rd Oct 20256111 AMAQI
3rd Oct 20256412 PMAQI
3rd Oct 2025621 PMAQI
3rd Oct 2025652 PMAQI
3rd Oct 2025713 PMAQI
3rd Oct 2025784 PMAQI
3rd Oct 2025665 PMAQI
3rd Oct 2025846 PMAQI
3rd Oct 2025867 PMAQI
3rd Oct 2025858 PMAQI
3rd Oct 2025839 PMAQI
3rd Oct 20258010 PMAQI
3rd Oct 20257911 PMAQI
4th Oct 20257912 AMAQI
4th Oct 2025801 AMAQI
4th Oct 2025812 AMAQI
4th Oct 2025833 AMAQI
4th Oct 2025854 AMAQI
27°C25/29°C
4th Oct 2025835 AMAQI
4th Oct 2025836 AMAQI
4th Oct 2025817 AMAQI
4th Oct 2025798 AMAQI
4th Oct 2025819 AMAQI
4th Oct 20258510 AMAQI
4th Oct 20259011 AMAQI
4th Oct 20259212 PMAQI
4th Oct 2025981 PMAQI
4th Oct 20251162 PMAQI
4th Oct 20251143 PMAQI
4th Oct 20251054 PMAQI
4th Oct 20251095 PMAQI
4th Oct 20251016 PMAQI
4th Oct 20251087 PMAQI
4th Oct 20251058 PMAQI
4th Oct 20251029 PMAQI
4th Oct 202510010 PMAQI
4th Oct 20259511 PMAQI
5th Oct 20259312 AMAQI
5th Oct 2025901 AMAQI
5th Oct 2025832 AMAQI
5th Oct 2025853 AMAQI
5th Oct 2025854 AMAQI
28°C25/30°C
5th Oct 2025805 AMAQI
5th Oct 2025816 AMAQI
5th Oct 2025767 AMAQI
5th Oct 2025728 AMAQI
5th Oct 2025719 AMAQI
5th Oct 20257010 AMAQI
5th Oct 20257211 AMAQI
5th Oct 20257612 PMAQI
5th Oct 2025791 PMAQI
5th Oct 2025842 PMAQI
5th Oct 2025933 PMAQI
5th Oct 20251004 PMAQI
5th Oct 20251025 PMAQI
5th Oct 20251016 PMAQI
5th Oct 2025967 PMAQI
5th Oct 2025948 PMAQI
5th Oct 2025919 PMAQI
5th Oct 20259110 PMAQI
5th Oct 20258811 PMAQI
6th Oct 20259112 AMAQI
6th Oct 2025921 AMAQI
6th Oct 2025942 AMAQI
6th Oct 2025943 AMAQI
6th Oct 2025954 AMAQI
28°C26/31°C
6th Oct 2025945 AMAQI
6th Oct 2025996 AMAQI
6th Oct 20251007 AMAQI
6th Oct 20251018 AMAQI
6th Oct 20251059 AMAQI
6th Oct 202510710 AMAQI
6th Oct 202510811 AMAQI
6th Oct 202511312 PMAQI
6th Oct 20251171 PMAQI
6th Oct 20251192 PMAQI
6th Oct 20251123 PMAQI
6th Oct 20251074 PMAQI
6th Oct 20251145 PMAQI
6th Oct 20251236 PMAQI
6th Oct 20251417 PMAQI
6th Oct 20251428 PMAQI
6th Oct 20251379 PMAQI
6th Oct 202513310 PMAQI
6th Oct 202513711 PMAQI
28°C25/31°C
7th Oct 20251255 PMAQI
7th Oct 20251256 PMAQI
7th Oct 20251237 PMAQI
7th Oct 20251158 PMAQI
7th Oct 20251099 PMAQI
7th Oct 202510410 PMAQI
7th Oct 202510611 PMAQI
8th Oct 202510012 AMAQI
8th Oct 2025991 AMAQI
8th Oct 2025972 AMAQI
8th Oct 20251003 AMAQI
8th Oct 20251014 AMAQI
28°C25/31°C
8th Oct 20251035 AMAQI
8th Oct 20251046 AMAQI
8th Oct 20251057 AMAQI
8th Oct 20251088 AMAQI
8th Oct 20251139 AMAQI
8th Oct 202512010 AMAQI
8th Oct 202512411 AMAQI
8th Oct 202513012 PMAQI
8th Oct 20251341 PMAQI
8th Oct 20251352 PMAQI
8th Oct 20251313 PMAQI
8th Oct 20251244 PMAQI
8th Oct 20251195 PMAQI
8th Oct 20251156 PMAQI
8th Oct 20251147 PMAQI
8th Oct 20251148 PMAQI
8th Oct 20251129 PMAQI
8th Oct 202511210 PMAQI
8th Oct 202511111 PMAQI
9th Oct 202511012 AMAQI
9th Oct 20251111 AMAQI
9th Oct 20251112 AMAQI
9th Oct 20251143 AMAQI
9th Oct 20251184 AMAQI
28°C25/31°C
9th Oct 20251245 AMAQI
9th Oct 20251276 AMAQI
9th Oct 20251297 AMAQI
9th Oct 20251308 AMAQI
9th Oct 20251339 AMAQI
9th Oct 202513610 AMAQI
9th Oct 202514211 AMAQI
9th Oct 202514412 PMAQI
9th Oct 20251461 PMAQI
9th Oct 20251462 PMAQI
9th Oct 20251433 PMAQI
9th Oct 20251404 PMAQI
9th Oct 20251365 PMAQI
9th Oct 20251376 PMAQI
9th Oct 20251347 PMAQI
9th Oct 20251288 PMAQI
9th Oct 20251229 PMAQI
9th Oct 202512510 PMAQI
9th Oct 202512611 PMAQI
10th Oct 202512412 AMAQI
10th Oct 20251301 AMAQI
10th Oct 20251372 AMAQI
10th Oct 20251373 AMAQI
10th Oct 20251314 AMAQI
28°C25/33°C
10th Oct 20251315 AMAQI
10th Oct 20251346 AMAQI
10th Oct 20251377 AMAQI
10th Oct 20251358 AMAQI
10th Oct 20251379 AMAQI
10th Oct 202513610 AMAQI
10th Oct 202513611 AMAQI
10th Oct 202513812 PMAQI
10th Oct 20251381 PMAQI
10th Oct 20251372 PMAQI
10th Oct 20251283 PMAQI
10th Oct 20251224 PMAQI
10th Oct 20251265 PMAQI
10th Oct 20251266 PMAQI
10th Oct 20251247 PMAQI
10th Oct 20251198 PMAQI
10th Oct 20251129 PMAQI
10th Oct 202510410 PMAQI
10th Oct 202510111 PMAQI
11th Oct 20259412 AMAQI
11th Oct 2025921 AMAQI
11th Oct 2025952 AMAQI
11th Oct 2025963 AMAQI
11th Oct 2025904 AMAQI
27°C25/31°C
11th Oct 2025955 AMAQI
5 AM11th Oct 2025926 AMAQI
11th Oct 2025947 AMAQI
11th Oct 2025978 AMAQI
11th Oct 2025959 AMAQI
11th Oct 20259710 AMAQI
11th Oct 20259811 AMAQI
11 AM11th Oct 202510312 PMAQI
11th Oct 20251101 PMAQI
5 PM
11 PM
4 AM
--°C/°C
Day time
Avg. Highest Time
12 PM - 5 PM
86AQI
6 hours / Day
180 hours / Month
Avg. Lowest Time
5 AM - 11 AM
83AQI
7 hours / Day
210 hours / Month
In the last 30 days, during the daytime, the highest AQI was between 12 PM to 5 PM (Avg. 86), while the lowest AQI was between 5 AM to 11 AM (Avg. 83).
Night time
Avg. Highest Time
6 PM - 11 PM
87AQI
6 hours / Day
180 hours / Month
Avg. Lowest Time
12 AM - 4 AM
84AQI
5 hours / Day
150 hours / Month
In the last 30 days, during the daytime, the highest AQI was between 6 PM to 11 PM (Avg. 87), while the lowest AQI was between 12 AM to 4 AM (Avg. 84).
2025 Days Vs Air Quality
Kolkata, West Bengal, India
2025
61%
174
24%
67
15%
42
Total number of days with different AQI categories in last 284 days in 2025 (81 days remaining)
Good
0 DaysModerate
174 DaysPoor
67 DaysUnhealthy
42 DaysSevere
0 DaysHazardous
0 DaysUnder WHO’s Safe Air Quality Limits: 0%
Health Risk Level:
Extreme
In 2025, 0% of 284 days were within WHO’s safe air quality limits. The risk of health issues is Extreme, potentially causing respiratory problems, heart disease, skin issues, and stress, especially for children, the elderly, and those with pre-existing conditions.
Annual Air Quality Insights
Kolkata, West Bengal, India
AQI levels in 2025
AQI
PM2.5
PM10
CO
SO2
NO2
O3
Sun.Mon.Tue.Wed.Thu.Fri.Sat.
Jan.
Feb.
Mar.
Apr.
May
Jun.
Jul.
Aug.
Sep.
Oct.
Nov.
Dec.
-1th undefined 2025
-1th undefined 2025
-1th undefined 2025
1st January 2025
182AQI
182AQI
2nd January 2025
165AQI
165AQI
3rd January 2025
181AQI
181AQI
4th January 2025
178AQI
178AQI
5th January 2025
176AQI
176AQI
6th January 2025
169AQI
169AQI
7th January 2025
174AQI
174AQI
8th January 2025
153AQI
153AQI
9th January 2025
160AQI
160AQI
10th January 2025
177AQI
177AQI
11th January 2025
185AQI
185AQI
12th January 2025
187AQI
187AQI
13th January 2025
189AQI
189AQI
14th January 2025
180AQI
180AQI
15th January 2025
169AQI
169AQI
16th January 2025
169AQI
169AQI
17th January 2025
167AQI
167AQI
18th January 2025
167AQI
167AQI
19th January 2025
160AQI
160AQI
20th January 2025
164AQI
164AQI
21st January 2025
171AQI
171AQI
22nd January 2025
179AQI
179AQI
23rd January 2025
179AQI
179AQI
24th January 2025
177AQI
177AQI
25th January 2025
177AQI
177AQI
26th January 2025
156AQI
156AQI
27th January 2025
167AQI
167AQI
28th January 2025
171AQI
171AQI
29th January 2025
159AQI
159AQI
30th January 2025
147AQI
147AQI
31st January 2025
143AQI
143AQI
1st February 2025
139AQI
139AQI
2nd February 2025
156AQI
156AQI
3rd February 2025
158AQI
158AQI
4th February 2025
155AQI
155AQI
5th February 2025
167AQI
167AQI
6th February 2025
153AQI
153AQI
7th February 2025
147AQI
147AQI
8th February 2025
152AQI
152AQI
9th February 2025
157AQI
157AQI
10th February 2025
161AQI
161AQI
11th February 2025
148AQI
148AQI
12th February 2025
142AQI
142AQI
13th February 2025
145AQI
145AQI
14th February 2025
150AQI
150AQI
15th February 2025
154AQI
154AQI
16th February 2025
143AQI
143AQI
17th February 2025
126AQI
126AQI
18th February 2025
130AQI
130AQI
19th February 2025
132AQI
132AQI
20th February 2025
123AQI
123AQI
21st February 2025
133AQI
133AQI
22nd February 2025
128AQI
128AQI
23rd February 2025
133AQI
133AQI
24th February 2025
142AQI
142AQI
25th February 2025
152AQI
152AQI
26th February 2025
151AQI
151AQI
27th February 2025
163AQI
163AQI
28th February 2025
157AQI
157AQI
1st March 2025
134AQI
134AQI
2nd March 2025
140AQI
140AQI
3rd March 2025
137AQI
137AQI
4th March 2025
130AQI
130AQI
5th March 2025
141AQI
141AQI
6th March 2025
126AQI
126AQI
7th March 2025
148AQI
148AQI
8th March 2025
139AQI
139AQI
9th March 2025
135AQI
135AQI
10th March 2025
136AQI
136AQI
11th March 2025
121AQI
121AQI
12th March 2025
131AQI
131AQI
13th March 2025
119AQI
119AQI
14th March 2025
116AQI
116AQI
15th March 2025
105AQI
105AQI
16th March 2025
100AQI
100AQI
17th March 2025
107AQI
107AQI
18th March 2025
109AQI
109AQI
19th March 2025
136AQI
136AQI
20th March 2025
104AQI
104AQI
21st March 2025
124AQI
124AQI
22nd March 2025
88AQI
88AQI
23rd March 2025
124AQI
124AQI
24th March 2025
133AQI
133AQI
25th March 2025
146AQI
146AQI
26th March 2025
122AQI
122AQI
27th March 2025
129AQI
129AQI
28th March 2025
137AQI
137AQI
29th March 2025
144AQI
144AQI
30th March 2025
139AQI
139AQI
31st March 2025
123AQI
123AQI
1st April 2025
112AQI
112AQI
2nd April 2025
98AQI
98AQI
3rd April 2025
99AQI
99AQI
4th April 2025
114AQI
114AQI
5th April 2025
114AQI
114AQI
6th April 2025
104AQI
104AQI
7th April 2025
85AQI
85AQI
8th April 2025
78AQI
78AQI
9th April 2025
69AQI
69AQI
10th April 2025
69AQI
69AQI
11th April 2025
74AQI
74AQI
12th April 2025
74AQI
74AQI
13th April 2025
90AQI
90AQI
14th April 2025
91AQI
91AQI
15th April 2025
94AQI
94AQI
16th April 2025
100AQI
100AQI
17th April 2025
82AQI
82AQI
18th April 2025
77AQI
77AQI
19th April 2025
90AQI
90AQI
20th April 2025
90AQI
90AQI
21st April 2025
90AQI
90AQI
22nd April 2025
94AQI
94AQI
23rd April 2025
103AQI
103AQI
24th April 2025
91AQI
91AQI
25th April 2025
84AQI
84AQI
26th April 2025
73AQI
73AQI
27th April 2025
90AQI
90AQI
28th April 2025
104AQI
104AQI
29th April 2025
80AQI
80AQI
30th April 2025
86AQI
86AQI
1st May 2025
84AQI
84AQI
2nd May 2025
82AQI
82AQI
3rd May 2025
80AQI
80AQI
4th May 2025
81AQI
81AQI
5th May 2025
80AQI
80AQI
6th May 2025
83AQI
83AQI
7th May 2025
92AQI
92AQI
8th May 2025
94AQI
94AQI
9th May 2025
95AQI
95AQI
10th May 2025
111AQI
111AQI
11th May 2025
111AQI
111AQI
12th May 2025
102AQI
102AQI
13th May 2025
95AQI
95AQI
14th May 2025
91AQI
91AQI
15th May 2025
84AQI
84AQI
16th May 2025
80AQI
80AQI
17th May 2025
77AQI
77AQI
18th May 2025
69AQI
69AQI
19th May 2025
63AQI
63AQI
20th May 2025
62AQI
62AQI
21st May 2025
64AQI
64AQI
22nd May 2025
73AQI
73AQI
23rd May 2025
66AQI
66AQI
24th May 2025
67AQI
67AQI
25th May 2025
61AQI
61AQI
26th May 2025
59AQI
59AQI
27th May 2025
61AQI
61AQI
28th May 2025
60AQI
60AQI
29th May 2025
60AQI
60AQI
30th May 2025
64AQI
64AQI
31st May 2025
82AQI
82AQI
1st June 2025
89AQI
89AQI
2nd June 2025
108AQI
108AQI
3rd June 2025
98AQI
98AQI
4th June 2025
86AQI
86AQI
5th June 2025
87AQI
87AQI
6th June 2025
94AQI
94AQI
7th June 2025
105AQI
105AQI
8th June 2025
110AQI
110AQI
9th June 2025
106AQI
106AQI
10th June 2025
105AQI
105AQI
11th June 2025
91AQI
91AQI
12th June 2025
76AQI
76AQI
13th June 2025
74AQI
74AQI
14th June 2025
78AQI
78AQI
15th June 2025
73AQI
73AQI
16th June 2025
66AQI
66AQI
17th June 2025
65AQI
65AQI
18th June 2025
66AQI
66AQI
19th June 2025
67AQI
67AQI
20th June 2025
69AQI
69AQI
21st June 2025
75AQI
75AQI
22nd June 2025
82AQI
82AQI
23rd June 2025
78AQI
78AQI
24th June 2025
71AQI
71AQI
25th June 2025
70AQI
70AQI
26th June 2025
64AQI
64AQI
27th June 2025
63AQI
63AQI
28th June 2025
68AQI
68AQI
29th June 2025
68AQI
68AQI
30th June 2025
71AQI
71AQI
1st July 2025
69AQI
69AQI
2nd July 2025
63AQI
63AQI
3rd July 2025
67AQI
67AQI
4th July 2025
69AQI
69AQI
5th July 2025
71AQI
71AQI
6th July 2025
67AQI
67AQI
7th July 2025
64AQI
64AQI
8th July 2025
62AQI
62AQI
9th July 2025
64AQI
64AQI
10th July 2025
63AQI
63AQI
11th July 2025
65AQI
65AQI
12th July 2025
68AQI
68AQI
13th July 2025
70AQI
70AQI
14th July 2025
67AQI
67AQI
15th July 2025
68AQI
68AQI
16th July 2025
69AQI
69AQI
17th July 2025
69AQI
69AQI
18th July 2025
70AQI
70AQI
19th July 2025
71AQI
71AQI
20th July 2025
71AQI
71AQI
21st July 2025
71AQI
71AQI
22nd July 2025
68AQI
68AQI
23rd July 2025
68AQI
68AQI
24th July 2025
68AQI
68AQI
25th July 2025
65AQI
65AQI
26th July 2025
61AQI
61AQI
27th July 2025
61AQI
61AQI
28th July 2025
65AQI
65AQI
29th July 2025
67AQI
67AQI
30th July 2025
60AQI
60AQI
31st July 2025
68AQI
68AQI
1st August 2025
73AQI
73AQI
2nd August 2025
81AQI
81AQI
3rd August 2025
78AQI
78AQI
4th August 2025
79AQI
79AQI
5th August 2025
78AQI
78AQI
6th August 2025
78AQI
78AQI
7th August 2025
84AQI
84AQI
8th August 2025
76AQI
76AQI
9th August 2025
63AQI
63AQI
10th August 2025
60AQI
60AQI
11th August 2025
64AQI
64AQI
12th August 2025
77AQI
77AQI
13th August 2025
67AQI
67AQI
14th August 2025
63AQI
63AQI
15th August 2025
59AQI
59AQI
16th August 2025
60AQI
60AQI
17th August 2025
59AQI
59AQI
18th August 2025
56AQI
56AQI
19th August 2025
58AQI
58AQI
20th August 2025
60AQI
60AQI
21st August 2025
64AQI
64AQI
22nd August 2025
69AQI
69AQI
23rd August 2025
67AQI
67AQI
24th August 2025
67AQI
67AQI
25th August 2025
68AQI
68AQI
26th August 2025
70AQI
70AQI
27th August 2025
68AQI
68AQI
28th August 2025
67AQI
67AQI
29th August 2025
67AQI
67AQI
30th August 2025
69AQI
69AQI
31st August 2025
71AQI
71AQI
1st September 2025
81AQI
81AQI
2nd September 2025
70AQI
70AQI
3rd September 2025
66AQI
66AQI
4th September 2025
61AQI
61AQI
5th September 2025
66AQI
66AQI
6th September 2025
74AQI
74AQI
7th September 2025
79AQI
79AQI
8th September 2025
84AQI
84AQI
9th September 2025
86AQI
86AQI
10th September 2025
88AQI
88AQI
11th September 2025
90AQI
90AQI
12th September 2025
86AQI
86AQI
13th September 2025
81AQI
81AQI
14th September 2025
78AQI
78AQI
15th September 2025
75AQI
75AQI
16th September 2025
70AQI
70AQI
17th September 2025
69AQI
69AQI
18th September 2025
72AQI
72AQI
19th September 2025
82AQI
82AQI
20th September 2025
91AQI
91AQI
21st September 2025
108AQI
108AQI
22nd September 2025
101AQI
101AQI
23rd September 2025
81AQI
81AQI
24th September 2025
80AQI
80AQI
25th September 2025
74AQI
74AQI
26th September 2025
70AQI
70AQI
27th September 2025
65AQI
65AQI
28th September 2025
67AQI
67AQI
29th September 2025
69AQI
69AQI
30th September 2025
82AQI
82AQI
1st October 2025
75AQI
75AQI
2nd October 2025
57AQI
57AQI
3rd October 2025
66AQI
66AQI
4th October 2025
91AQI
91AQI
5th October 2025
86AQI
86AQI
6th October 2025
107AQI
107AQI
7th October 2025
115AQI
115AQI
8th October 2025
110AQI
110AQI
9th October 2025
127AQI
127AQI
10th October 2025
129AQI
129AQI
11th October 2025
12th October 2025
13th October 2025
14th October 2025
15th October 2025
16th October 2025
17th October 2025
18th October 2025
19th October 2025
20th October 2025
21st October 2025
22nd October 2025
23rd October 2025
24th October 2025
25th October 2025
26th October 2025
27th October 2025
28th October 2025
29th October 2025
30th October 2025
31st October 2025
1st November 2025
2nd November 2025
3rd November 2025
4th November 2025
5th November 2025
6th November 2025
7th November 2025
8th November 2025
9th November 2025
10th November 2025
11th November 2025
12th November 2025
13th November 2025
14th November 2025
15th November 2025
16th November 2025
17th November 2025
18th November 2025
19th November 2025
20th November 2025
21st November 2025
22nd November 2025
23rd November 2025
24th November 2025
25th November 2025
26th November 2025
27th November 2025
28th November 2025
29th November 2025
30th November 2025
1st December 2025
2nd December 2025
3rd December 2025
4th December 2025
5th December 2025
6th December 2025
7th December 2025
8th December 2025
9th December 2025
10th December 2025
11th December 2025
12th December 2025
13th December 2025
14th December 2025
15th December 2025
16th December 2025
17th December 2025
18th December 2025
19th December 2025
20th December 2025
21st December 2025
22nd December 2025
23rd December 2025
24th December 2025
25th December 2025
26th December 2025
27th December 2025
28th December 2025
29th December 2025
30th December 2025
31st December 2025
170AQI
146AQI
127AQI
90AQI
78AQI
81AQI
67AQI
68AQI
78AQI
96AQI
No. of days
Jan.Feb.Mar.Apr.MayJun.Jul.Aug.Sep.Oct.Nov.Dec.Total Days
2025100AQI
2
29
15
13
2
29
24
6
28
3
25
5
31
31
28
2
5
5
174
67
42
Highest AQI recorded in
January170AQI
Lowest AQI recorded in
July67AQI
2024118AQI
9
21
1
5
17
7
4
18
9
1
27
2
4
24
3
2
28
9
22
2
28
1
9
15
6
15
15
1
13
16
1
4
27
26
137
92
81
29
1
Highest AQI recorded in
January218AQI
Lowest AQI recorded in
July59AQI
2023117AQI
1
25
5
16
12
10
15
6
11
17
2
24
7
6
17
7
18
13
2
18
9
2
6
21
3
3
5
12
11
5
19
5
1
4
20
6
35
120
96
97
16
Highest AQI recorded in
January182AQI
Lowest AQI recorded in
July50AQI
2022114AQI
2
25
4
1
15
12
4
12
15
29
1
1
24
6
2
25
3
17
14
7
6
8
19
2
8
5
10
8
5
25
2
17
12
43
127
58
102
16
Highest AQI recorded in
December194AQI
Lowest AQI recorded in
July49AQI
2021123AQI
15
15
1
3
19
6
2
12
17
8
21
1
1
30
30
5
21
5
1
20
10
4
22
4
4
7
10
10
1
7
22
1
1
5
21
3
16
142
77
105
24
1
Highest AQI recorded in
January221AQI
Lowest AQI recorded in
September68AQI
202094AQI
2
10
1
5
18
7
9
20
2
12
18
9
20
2
16
14
1
11
18
1
6
12
11
2
1
1
6
22
10
19
2
69
123
40
35
19
2
Highest AQI recorded in
December231AQI
Lowest AQI recorded in
August53AQI
Most & Least Polluted Years Over the Last 6 Years
Most Polluted Year Recorded
2021(Avg.)
123AQILeast Polluted Year Recorded
2020(Avg.)
94AQIKolkata's annual 2025 AQI (100) shows an average percentage change of -10.9% (improved AQI) compared to previous years: 2020 (94), 2021 (123), 2022 (114), 2023 (117), 2024 (118).
