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+
August Air Quality Analysis
Kolkata, West Bengal, India
2021
2022
2023
2024
2025
AQI
.
Days
AQI Trends: Highest and Lowest
Highest AQI recorded on
29th Aug 2023
154AQILowest AQI recorded on
9th Aug 2022
32AQISame Day Analysis (1st August ):
On this day, AQI across the 5 years varied significantly: 2025 ranks 3rd highest AQI at 72 of Moderate air quality, showing improvement over 2022 and 2021 on the same day.
Download 2024 Annual Data
World Air Quality Report
Day & Night AQI Trend: 2nd Aug - 3rd Aug 2025
Kolkata, West Bengal, India
AQI
Day
Night
.
5 AM2nd Aug 2025
6 PM
4 AM3rd Aug 2025
Day time
Avg. Highest Time
12AMNaNth undefined
AQI
Avg. Lowest Time
12AMNaNth undefined
AQI
Night time
Avg. Highest Time
4PM2nd Aug
106AQI
Avg. Lowest Time
12AM3rd Aug
70AQI
In the last 24 hours,
Kolkata's AQI reached its highest point of 106 at 4 PM during the Night, while the lowest point, undefined, was recorded at 4 AM during the Night between 2nd Aug and 3rd Aug 2025.
Day & Night AQI Trend : Jul - Aug 2025
Kolkata, West Bengal, India
JulAug
04th - 05th05th - 06th06th - 07th07th - 08th08th - 09th09th - 10th10th - 11th11th - 12th12th - 13th13th - 14th14th - 15th15th - 16th16th - 17th17th - 18th18th - 19th19th - 20th20th - 21st21st - 22nd22nd - 23rd23rd - 24th24th - 25th25th - 26th26th - 27th27th - 28th28th - 29th29th - 30th30th - 31st31st - 01st01st - 02nd02nd - 03rd03rd
Day
Night
4th Jul 2025655 AMAQI
4th Jul 2025676 AMAQI
4th Jul 2025657 AMAQI
4th Jul 2025658 AMAQI
4th Jul 2025679 AMAQI
4th Jul 20257010 AMAQI
4th Jul 20257111 AMAQI
4th Jul 20257412 PMAQI
4th Jul 2025751 PMAQI
4th Jul 2025742 PMAQI
4th Jul 2025803 PMAQI
4th Jul 2025784 PMAQI
4th Jul 2025715 PMAQI
4th Jul 2025706 PMAQI
4th Jul 2025727 PMAQI
4th Jul 2025718 PMAQI
4th Jul 2025689 PMAQI
4th Jul 20256910 PMAQI
4th Jul 20257011 PMAQI
5th Jul 20256912 AMAQI
5th Jul 2025681 AMAQI
5th Jul 2025762 AMAQI
5th Jul 2025733 AMAQI
5th Jul 2025674 AMAQI
28°C27/32°C
5th Jul 2025665 AMAQI
5th Jul 2025636 AMAQI
5th Jul 2025657 AMAQI
5th Jul 2025658 AMAQI
5th Jul 2025679 AMAQI
5th Jul 20257110 AMAQI
5th Jul 20257111 AMAQI
5th Jul 20257412 PMAQI
5th Jul 2025741 PMAQI
5th Jul 2025782 PMAQI
5th Jul 2025793 PMAQI
5th Jul 2025774 PMAQI
5th Jul 2025725 PMAQI
5th Jul 2025716 PMAQI
5th Jul 2025727 PMAQI
5th Jul 2025738 PMAQI
5th Jul 2025729 PMAQI
5th Jul 20257110 PMAQI
5th Jul 20257011 PMAQI
6th Jul 20256812 AMAQI
6th Jul 2025681 AMAQI
6th Jul 2025682 AMAQI
6th Jul 2025693 AMAQI
6th Jul 2025694 AMAQI
29°C27/32°C
6th Jul 2025695 AMAQI
6th Jul 2025676 AMAQI
6th Jul 2025657 AMAQI
6th Jul 2025648 AMAQI
6th Jul 2025689 AMAQI
6th Jul 20256710 AMAQI
6th Jul 20256711 AMAQI
6th Jul 20256912 PMAQI
6th Jul 2025681 PMAQI
6th Jul 2025692 PMAQI
6th Jul 2025693 PMAQI
6th Jul 2025694 PMAQI
6th Jul 2025675 PMAQI
6th Jul 2025676 PMAQI
6th Jul 2025677 PMAQI
6th Jul 2025668 PMAQI
6th Jul 2025679 PMAQI
6th Jul 20256610 PMAQI
6th Jul 20256711 PMAQI
7th Jul 20256812 AMAQI
7th Jul 2025671 AMAQI
7th Jul 2025672 AMAQI
7th Jul 2025673 AMAQI
7th Jul 2025674 AMAQI
29°C27/33°C
7th Jul 2025655 AMAQI
7th Jul 2025586 AMAQI
7th Jul 2025547 AMAQI
7th Jul 2025568 AMAQI
7th Jul 2025629 AMAQI
7th Jul 20256010 AMAQI
7th Jul 20256111 AMAQI
7th Jul 20256112 PMAQI
7th Jul 2025611 PMAQI
7th Jul 2025642 PMAQI
7th Jul 2025693 PMAQI
7th Jul 2025684 PMAQI
7th Jul 2025675 PMAQI
7th Jul 2025676 PMAQI
7th Jul 2025687 PMAQI
7th Jul 2025668 PMAQI
7th Jul 2025659 PMAQI
7th Jul 20256410 PMAQI
7th Jul 20256411 PMAQI
8th Jul 20256412 AMAQI
8th Jul 2025631 AMAQI
8th Jul 2025632 AMAQI
8th Jul 2025633 AMAQI
8th Jul 2025634 AMAQI
28°C27/30°C
8th Jul 2025635 AMAQI
8th Jul 2025596 AMAQI
8th Jul 2025547 AMAQI
8th Jul 2025528 AMAQI
8th Jul 2025559 AMAQI
8th Jul 20255910 AMAQI
8th Jul 20256011 AMAQI
8th Jul 20255812 PMAQI
8th Jul 2025581 PMAQI
8th Jul 2025592 PMAQI
8th Jul 2025583 PMAQI
8th Jul 2025644 PMAQI
8th Jul 2025665 PMAQI
8th Jul 2025666 PMAQI
8th Jul 2025647 PMAQI
8th Jul 2025648 PMAQI
8th Jul 2025659 PMAQI
8th Jul 20256510 PMAQI
8th Jul 20256411 PMAQI
9th Jul 20256412 AMAQI
9th Jul 2025611 AMAQI
9th Jul 2025612 AMAQI
9th Jul 2025613 AMAQI
9th Jul 2025634 AMAQI
27°C26/28°C
9th Jul 2025615 AMAQI
9th Jul 2025596 AMAQI
9th Jul 2025587 AMAQI
9th Jul 2025568 AMAQI
9th Jul 2025609 AMAQI
9th Jul 20256010 AMAQI
9th Jul 20256011 AMAQI
9th Jul 20256412 PMAQI
9th Jul 2025671 PMAQI
9th Jul 2025702 PMAQI
9th Jul 2025713 PMAQI
9th Jul 2025754 PMAQI
9th Jul 2025665 PMAQI
9th Jul 2025676 PMAQI
9th Jul 2025677 PMAQI
9th Jul 2025658 PMAQI
9th Jul 2025659 PMAQI
9th Jul 20256510 PMAQI
9th Jul 20256511 PMAQI
10th Jul 20256412 AMAQI
10th Jul 2025621 AMAQI
10th Jul 2025622 AMAQI
10th Jul 2025623 AMAQI
10th Jul 2025624 AMAQI
28°C26/32°C
10th Jul 2025595 AMAQI
10th Jul 2025566 AMAQI
10th Jul 2025577 AMAQI
10th Jul 2025588 AMAQI
10th Jul 2025639 AMAQI
10th Jul 20256410 AMAQI
10th Jul 20256111 AMAQI
10th Jul 20256312 PMAQI
10th Jul 2025651 PMAQI
10th Jul 2025692 PMAQI
10th Jul 2025713 PMAQI
10th Jul 2025674 PMAQI
10th Jul 2025635 PMAQI
10th Jul 2025636 PMAQI
10th Jul 2025627 PMAQI
10th Jul 2025648 PMAQI
10th Jul 2025649 PMAQI
10th Jul 20256410 PMAQI
10th Jul 20256411 PMAQI
11th Jul 20256312 AMAQI
11th Jul 2025621 AMAQI
11th Jul 2025622 AMAQI
11th Jul 2025613 AMAQI
11th Jul 2025614 AMAQI
29°C27/33°C
11th Jul 2025625 AMAQI
11th Jul 2025676 AMAQI
11th Jul 2025657 AMAQI
11th Jul 2025638 AMAQI
11th Jul 2025659 AMAQI
11th Jul 20256510 AMAQI
11th Jul 20256611 AMAQI
11th Jul 20256712 PMAQI
11th Jul 2025671 PMAQI
11th Jul 2025682 PMAQI
11th Jul 2025673 PMAQI
11th Jul 2025654 PMAQI
11th Jul 2025635 PMAQI
11th Jul 2025656 PMAQI
11th Jul 2025647 PMAQI
11th Jul 2025668 PMAQI
11th Jul 2025679 PMAQI
11th Jul 20256810 PMAQI
11th Jul 20256711 PMAQI
12th Jul 20256512 AMAQI
12th Jul 2025631 AMAQI
12th Jul 2025632 AMAQI
12th Jul 2025633 AMAQI
12th Jul 2025644 AMAQI
30°C27/33°C
12th Jul 2025665 AMAQI
12th Jul 2025696 AMAQI
12th Jul 2025717 AMAQI
12th Jul 2025708 AMAQI
12th Jul 2025719 AMAQI
12th Jul 20257110 AMAQI
12th Jul 20256911 AMAQI
12th Jul 20257212 PMAQI
12th Jul 2025741 PMAQI
12th Jul 2025742 PMAQI
12th Jul 2025753 PMAQI
12th Jul 2025724 PMAQI
12th Jul 2025685 PMAQI
12th Jul 2025676 PMAQI
12th Jul 2025687 PMAQI
12th Jul 2025698 PMAQI
12th Jul 2025699 PMAQI
12th Jul 20256610 PMAQI
12th Jul 20256611 PMAQI
13th Jul 20256512 AMAQI
13th Jul 2025661 AMAQI
13th Jul 2025672 AMAQI
13th Jul 2025663 AMAQI
13th Jul 2025664 AMAQI
31°C28/34°C
13th Jul 2025665 AMAQI
13th Jul 2025766 AMAQI
13th Jul 2025817 AMAQI
13th Jul 2025838 AMAQI
13th Jul 2025839 AMAQI
13th Jul 20258010 AMAQI
13th Jul 20257811 AMAQI
13th Jul 20257912 PMAQI
13th Jul 2025811 PMAQI
13th Jul 2025762 PMAQI
13th Jul 2025743 PMAQI
13th Jul 2025704 PMAQI
13th Jul 2025675 PMAQI
13th Jul 2025676 PMAQI
13th Jul 2025677 PMAQI
13th Jul 2025668 PMAQI
13th Jul 2025689 PMAQI
13th Jul 20256810 PMAQI
13th Jul 20256811 PMAQI
14th Jul 20256812 AMAQI
14th Jul 2025701 AMAQI
14th Jul 2025712 AMAQI
14th Jul 2025713 AMAQI
14th Jul 2025714 AMAQI
30°C28/33°C
14th Jul 2025695 AMAQI
14th Jul 2025566 AMAQI
14th Jul 2025587 AMAQI
14th Jul 2025628 AMAQI
14th Jul 2025659 AMAQI
14th Jul 20256610 AMAQI
14th Jul 20256511 AMAQI
14th Jul 20256412 PMAQI
14th Jul 2025651 PMAQI
14th Jul 2025672 PMAQI
14th Jul 2025673 PMAQI
14th Jul 2025664 PMAQI
14th Jul 2025665 PMAQI
14th Jul 2025666 PMAQI
14th Jul 2025687 PMAQI
14th Jul 2025698 PMAQI
14th Jul 2025689 PMAQI
14th Jul 20256710 PMAQI
14th Jul 20256711 PMAQI
15th Jul 20256712 AMAQI
15th Jul 2025671 AMAQI
15th Jul 2025682 AMAQI
15th Jul 2025673 AMAQI
15th Jul 2025684 AMAQI
26°C25/27°C
15th Jul 2025655 AMAQI
15th Jul 2025616 AMAQI
15th Jul 2025637 AMAQI
15th Jul 2025688 AMAQI
15th Jul 2025699 AMAQI
15th Jul 20256410 AMAQI
15th Jul 20256611 AMAQI
15th Jul 20257012 PMAQI
15th Jul 2025701 PMAQI
15th Jul 2025722 PMAQI
15th Jul 2025703 PMAQI
15th Jul 2025734 PMAQI
15th Jul 2025695 PMAQI
15th Jul 2025696 PMAQI
15th Jul 2025707 PMAQI
15th Jul 2025708 PMAQI
15th Jul 2025719 PMAQI
15th Jul 20257010 PMAQI
15th Jul 20257011 PMAQI
16th Jul 20256912 AMAQI
16th Jul 2025661 AMAQI
16th Jul 2025672 AMAQI
16th Jul 2025673 AMAQI
16th Jul 2025664 AMAQI
29°C26/33°C
16th Jul 2025695 AMAQI
16th Jul 2025676 AMAQI
16th Jul 2025667 AMAQI
16th Jul 2025628 AMAQI
16th Jul 2025649 AMAQI
16th Jul 20256710 AMAQI
16th Jul 20257211 AMAQI
16th Jul 20257212 PMAQI
16th Jul 2025721 PMAQI
16th Jul 2025772 PMAQI
16th Jul 2025773 PMAQI
16th Jul 2025764 PMAQI
16th Jul 2025715 PMAQI
16th Jul 2025706 PMAQI
16th Jul 2025717 PMAQI
16th Jul 2025708 PMAQI
16th Jul 2025699 PMAQI
16th Jul 20257010 PMAQI
16th Jul 20257111 PMAQI
17th Jul 20257012 AMAQI
17th Jul 2025671 AMAQI
17th Jul 2025682 AMAQI
17th Jul 2025683 AMAQI
17th Jul 2025674 AMAQI
30°C27/33°C
17th Jul 2025675 AMAQI
17th Jul 2025646 AMAQI
17th Jul 2025617 AMAQI
17th Jul 2025618 AMAQI
17th Jul 2025629 AMAQI
17th Jul 20256710 AMAQI
17th Jul 20257011 AMAQI
17th Jul 20257112 PMAQI
17th Jul 2025721 PMAQI
17th Jul 2025782 PMAQI
17th Jul 2025733 PMAQI
17th Jul 2025764 PMAQI
17th Jul 2025715 PMAQI
17th Jul 2025706 PMAQI
17th Jul 2025707 PMAQI
17th Jul 2025688 PMAQI
17th Jul 2025709 PMAQI
17th Jul 20256910 PMAQI
17th Jul 20257011 PMAQI
18th Jul 20257012 AMAQI
18th Jul 2025671 AMAQI
18th Jul 2025682 AMAQI
18th Jul 2025673 AMAQI
18th Jul 2025674 AMAQI
30°C27/35°C
18th Jul 2025675 AMAQI
18th Jul 2025646 AMAQI
18th Jul 2025607 AMAQI
18th Jul 2025648 AMAQI
18th Jul 2025679 AMAQI
18th Jul 20257110 AMAQI
18th Jul 20257111 AMAQI
18th Jul 20257312 PMAQI
18th Jul 2025711 PMAQI
18th Jul 2025722 PMAQI
18th Jul 2025733 PMAQI
18th Jul 2025744 PMAQI
18th Jul 2025695 PMAQI
18th Jul 2025706 PMAQI
18th Jul 2025717 PMAQI
18th Jul 2025758 PMAQI
18th Jul 2025729 PMAQI
18th Jul 20257210 PMAQI
18th Jul 20257211 PMAQI
19th Jul 20256912 AMAQI
19th Jul 2025671 AMAQI
19th Jul 2025672 AMAQI
19th Jul 2025673 AMAQI
19th Jul 2025674 AMAQI
30°C28/34°C
19th Jul 2025695 AMAQI
19th Jul 2025706 AMAQI
19th Jul 2025677 AMAQI
19th Jul 2025678 AMAQI
19th Jul 2025679 AMAQI
19th Jul 20256610 AMAQI
19th Jul 20257511 AMAQI
19th Jul 20258312 PMAQI
19th Jul 2025791 PMAQI
19th Jul 2025772 PMAQI
19th Jul 2025723 PMAQI
19th Jul 2025714 PMAQI
19th Jul 2025705 PMAQI
19th Jul 2025706 PMAQI
19th Jul 2025737 PMAQI
19th Jul 2025748 PMAQI
19th Jul 2025779 PMAQI
19th Jul 20257610 PMAQI
19th Jul 20257411 PMAQI
20th Jul 20257012 AMAQI
20th Jul 2025691 AMAQI
20th Jul 2025692 AMAQI
20th Jul 2025693 AMAQI
20th Jul 2025694 AMAQI
31°C28/34°C
20th Jul 2025705 AMAQI
20th Jul 2025646 AMAQI
20th Jul 2025727 AMAQI
20th Jul 2025668 AMAQI
20th Jul 2025629 AMAQI
20th Jul 20256710 AMAQI
20th Jul 20257211 AMAQI
20th Jul 20257312 PMAQI
20th Jul 2025721 PMAQI
20th Jul 2025692 PMAQI
20th Jul 2025783 PMAQI
20th Jul 2025784 PMAQI
20th Jul 2025775 PMAQI
20th Jul 2025736 PMAQI
20th Jul 2025717 PMAQI
20th Jul 2025718 PMAQI
20th Jul 2025709 PMAQI
20th Jul 20257010 PMAQI
20th Jul 20257011 PMAQI
21st Jul 20256912 AMAQI
21st Jul 2025691 AMAQI
21st Jul 2025692 AMAQI
21st Jul 2025693 AMAQI
21st Jul 2025704 AMAQI
31°C28/35°C
21st Jul 2025705 AMAQI
21st Jul 2025666 AMAQI
21st Jul 2025697 AMAQI
21st Jul 2025758 AMAQI
21st Jul 2025709 AMAQI
21st Jul 20257410 AMAQI
21st Jul 20257511 AMAQI
21st Jul 20257512 PMAQI
21st Jul 2025751 PMAQI
21st Jul 2025782 PMAQI
21st Jul 2025733 PMAQI
21st Jul 2025794 PMAQI
21st Jul 2025775 PMAQI
21st Jul 2025726 PMAQI
21st Jul 2025707 PMAQI
21st Jul 2025708 PMAQI
21st Jul 2025689 PMAQI
21st Jul 20256810 PMAQI
21st Jul 20256711 PMAQI
22nd Jul 20256812 AMAQI
22nd Jul 2025701 AMAQI
22nd Jul 2025702 AMAQI
22nd Jul 2025703 AMAQI
22nd Jul 2025704 AMAQI
31°C28/35°C
22nd Jul 2025695 AMAQI
22nd Jul 2025646 AMAQI
22nd Jul 2025607 AMAQI
22nd Jul 2025628 AMAQI
22nd Jul 2025649 AMAQI
22nd Jul 20256310 AMAQI
22nd Jul 20256211 AMAQI
22nd Jul 20256512 PMAQI
22nd Jul 2025651 PMAQI
22nd Jul 2025632 PMAQI
22nd Jul 2025763 PMAQI
22nd Jul 2025714 PMAQI
22nd Jul 2025725 PMAQI
22nd Jul 2025716 PMAQI
22nd Jul 2025687 PMAQI
22nd Jul 2025688 PMAQI
22nd Jul 2025689 PMAQI
22nd Jul 20256810 PMAQI
22nd Jul 20256711 PMAQI
23rd Jul 20256712 AMAQI
23rd Jul 2025691 AMAQI
23rd Jul 2025682 AMAQI
23rd Jul 2025683 AMAQI
23rd Jul 2025684 AMAQI
31°C28/34°C
23rd Jul 2025665 AMAQI
23rd Jul 2025606 AMAQI
23rd Jul 2025647 AMAQI
23rd Jul 2025648 AMAQI
23rd Jul 2025639 AMAQI
23rd Jul 20256410 AMAQI
23rd Jul 20257011 AMAQI
23rd Jul 20256612 PMAQI
23rd Jul 2025671 PMAQI
23rd Jul 2025732 PMAQI
23rd Jul 2025763 PMAQI
23rd Jul 2025744 PMAQI
23rd Jul 2025685 PMAQI
23rd Jul 2025686 PMAQI
23rd Jul 2025697 PMAQI
23rd Jul 2025698 PMAQI
23rd Jul 2025699 PMAQI
23rd Jul 20257210 PMAQI
23rd Jul 20257311 PMAQI
24th Jul 20256812 AMAQI
24th Jul 2025681 AMAQI
24th Jul 2025672 AMAQI
24th Jul 2025673 AMAQI
24th Jul 2025674 AMAQI
32°C28/36°C
24th Jul 2025675 AMAQI
24th Jul 2025606 AMAQI
24th Jul 2025577 AMAQI
24th Jul 2025578 AMAQI
24th Jul 2025619 AMAQI
24th Jul 20256810 AMAQI
24th Jul 20257411 AMAQI
24th Jul 20257512 PMAQI
24th Jul 2025691 PMAQI
24th Jul 2025702 PMAQI
24th Jul 2025743 PMAQI
24th Jul 2025724 PMAQI
24th Jul 2025715 PMAQI
24th Jul 2025706 PMAQI
24th Jul 2025697 PMAQI
24th Jul 2025698 PMAQI
24th Jul 2025719 PMAQI
24th Jul 20257110 PMAQI
24th Jul 20257011 PMAQI
25th Jul 20257012 AMAQI
25th Jul 2025671 AMAQI
25th Jul 2025672 AMAQI
25th Jul 2025673 AMAQI
25th Jul 2025684 AMAQI
30°C29/32°C
25th Jul 2025705 AMAQI
25th Jul 2025676 AMAQI
25th Jul 2025697 AMAQI
25th Jul 2025688 AMAQI
25th Jul 2025659 AMAQI
25th Jul 20255910 AMAQI
25th Jul 20256211 AMAQI
25th Jul 20256012 PMAQI
25th Jul 2025541 PMAQI
25th Jul 2025592 PMAQI
25th Jul 2025663 PMAQI
25th Jul 2025644 PMAQI
25th Jul 2025655 PMAQI
25th Jul 2025636 PMAQI
25th Jul 2025657 PMAQI
25th Jul 2025648 PMAQI
25th Jul 2025639 PMAQI
25th Jul 20256410 PMAQI
25th Jul 20256611 PMAQI
26th Jul 20256512 AMAQI
26th Jul 2025681 AMAQI
26th Jul 2025692 AMAQI
26th Jul 2025683 AMAQI
26th Jul 2025684 AMAQI
29°C28/32°C
26th Jul 2025645 AMAQI
26th Jul 2025546 AMAQI
26th Jul 2025517 AMAQI
26th Jul 2025548 AMAQI
26th Jul 2025569 AMAQI
26th Jul 20255810 AMAQI
26th Jul 20255711 AMAQI
26th Jul 20256012 PMAQI
26th Jul 2025591 PMAQI
26th Jul 2025562 PMAQI
26th Jul 2025553 PMAQI
26th Jul 2025574 PMAQI
26th Jul 2025595 PMAQI
26th Jul 2025596 PMAQI
26th Jul 2025597 PMAQI
26th Jul 2025608 PMAQI
26th Jul 2025599 PMAQI
26th Jul 20256010 PMAQI
26th Jul 20256211 PMAQI
27th Jul 20256412 AMAQI
27th Jul 2025631 AMAQI
27th Jul 2025622 AMAQI
27th Jul 2025623 AMAQI
27th Jul 2025624 AMAQI
29°C27/31°C
27th Jul 2025625 AMAQI
27th Jul 2025536 AMAQI
27th Jul 2025567 AMAQI
27th Jul 2025558 AMAQI
27th Jul 2025569 AMAQI
27th Jul 20255610 AMAQI
27th Jul 20256011 AMAQI
27th Jul 20255612 PMAQI
27th Jul 2025561 PMAQI
27th Jul 2025602 PMAQI
27th Jul 2025633 PMAQI
27th Jul 2025664 PMAQI
27th Jul 2025635 PMAQI
27th Jul 2025646 PMAQI
27th Jul 2025657 PMAQI
27th Jul 2025668 PMAQI
27th Jul 2025659 PMAQI
27th Jul 20256510 PMAQI
27th Jul 20256311 PMAQI
28th Jul 20256212 AMAQI
28th Jul 2025601 AMAQI
28th Jul 2025612 AMAQI
28th Jul 2025603 AMAQI
28th Jul 2025604 AMAQI
30°C27/34°C
28th Jul 2025615 AMAQI
28th Jul 2025646 AMAQI
28th Jul 2025647 AMAQI
28th Jul 2025638 AMAQI
28th Jul 2025649 AMAQI
28th Jul 20256910 AMAQI
28th Jul 20257011 AMAQI
28th Jul 20256912 PMAQI
28th Jul 2025711 PMAQI
28th Jul 2025662 PMAQI
28th Jul 2025673 PMAQI
28th Jul 2025744 PMAQI
28th Jul 2025655 PMAQI
28th Jul 2025646 PMAQI
28th Jul 2025647 PMAQI
28th Jul 2025658 PMAQI
28th Jul 2025659 PMAQI
28th Jul 20256510 PMAQI
28th Jul 20256511 PMAQI
29th Jul 20256412 AMAQI
29th Jul 2025641 AMAQI
29th Jul 2025642 AMAQI
29th Jul 2025643 AMAQI
29th Jul 2025634 AMAQI
29°C27/31°C
29th Jul 2025635 AMAQI
29th Jul 2025626 AMAQI
29th Jul 2025647 AMAQI
29th Jul 2025608 AMAQI
29th Jul 2025669 AMAQI
29th Jul 20256910 AMAQI
29th Jul 20257311 AMAQI
29th Jul 20257412 PMAQI
29th Jul 2025741 PMAQI
29th Jul 2025752 PMAQI
29th Jul 2025783 PMAQI
29th Jul 2025804 PMAQI
29th Jul 2025725 PMAQI
29th Jul 2025666 PMAQI
29th Jul 2025667 PMAQI
29th Jul 2025668 PMAQI
29th Jul 2025659 PMAQI
29th Jul 20256810 PMAQI
29th Jul 20256711 PMAQI
30th Jul 20256412 AMAQI
30th Jul 2025641 AMAQI
30th Jul 2025652 AMAQI
30th Jul 2025643 AMAQI
30th Jul 2025654 AMAQI
27°C27/27°C
30th Jul 2025635 AMAQI
30th Jul 2025546 AMAQI
30th Jul 2025547 AMAQI
30th Jul 2025558 AMAQI
30th Jul 2025589 AMAQI
30th Jul 20255810 AMAQI
30th Jul 20255511 AMAQI
30th Jul 20255612 PMAQI
30th Jul 2025541 PMAQI
30th Jul 2025562 PMAQI
30th Jul 2025553 PMAQI
30th Jul 2025554 PMAQI
30th Jul 2025585 PMAQI
30th Jul 2025586 PMAQI
30th Jul 2025587 PMAQI
30th Jul 2025608 PMAQI
30th Jul 2025619 PMAQI
30th Jul 20256210 PMAQI
30th Jul 20256411 PMAQI
31st Jul 20256212 AMAQI
31st Jul 2025631 AMAQI
31st Jul 2025632 AMAQI
31st Jul 2025633 AMAQI
31st Jul 2025634 AMAQI
27°C26/28°C
31st Jul 2025635 AMAQI
31st Jul 2025636 AMAQI
31st Jul 2025627 AMAQI
31st Jul 2025598 AMAQI
31st Jul 2025589 AMAQI
31st Jul 20256610 AMAQI
31st Jul 20257011 AMAQI
31st Jul 20257012 PMAQI
31st Jul 2025741 PMAQI
31st Jul 2025702 PMAQI
31st Jul 2025693 PMAQI
31st Jul 2025674 PMAQI
31st Jul 2025655 PMAQI
31st Jul 2025696 PMAQI
31st Jul 2025717 PMAQI
31st Jul 2025788 PMAQI
31st Jul 2025769 PMAQI
31st Jul 20258210 PMAQI
31st Jul 20258911 PMAQI
1st Aug 20257112 AMAQI
1st Aug 2025651 AMAQI
1st Aug 2025652 AMAQI
1st Aug 2025673 AMAQI
1st Aug 2025674 AMAQI
28°C26/32°C
1st Aug 2025695 AMAQI
1st Aug 2025726 AMAQI
1st Aug 2025757 AMAQI
1st Aug 2025688 AMAQI
1st Aug 2025629 AMAQI
1st Aug 20256810 AMAQI
1st Aug 20257711 AMAQI
1st Aug 20257812 PMAQI
1st Aug 2025771 PMAQI
1st Aug 2025772 PMAQI
1st Aug 2025753 PMAQI
1st Aug 2025694 PMAQI
1st Aug 2025735 PMAQI
1st Aug 2025736 PMAQI
1st Aug 2025757 PMAQI
1st Aug 2025758 PMAQI
1st Aug 2025729 PMAQI
1st Aug 20257510 PMAQI
1st Aug 20258211 PMAQI
2nd Aug 20257112 AMAQI
2nd Aug 2025671 AMAQI
2nd Aug 2025682 AMAQI
2nd Aug 2025683 AMAQI
2nd Aug 2025684 AMAQI
29°C26/33°C
2nd Aug 2025705 AMAQI
2nd Aug 2025736 AMAQI
2nd Aug 2025757 AMAQI
2nd Aug 2025788 AMAQI
2nd Aug 2025839 AMAQI
2nd Aug 20259010 AMAQI
2nd Aug 20259611 AMAQI
2nd Aug 20259512 PMAQI
2nd Aug 2025891 PMAQI
2nd Aug 2025902 PMAQI
2nd Aug 2025963 PMAQI
2nd Aug 20251064 PMAQI
2nd Aug 2025885 PMAQI
2nd Aug 2025846 PMAQI
2nd Aug 2025847 PMAQI
2nd Aug 2025768 PMAQI
2nd Aug 2025849 PMAQI
2nd Aug 20259110 PMAQI
2nd Aug 20258811 PMAQI
3rd Aug 20257012 AMAQI
--°C/°C
5 AM
11 AM
6 PM
11 PM
4 AM
--°C/°C
Day time
Avg. Highest Time
5 AM - 6 PM
68AQI
14 hours / Day
420 hours / Month
Avg. Lowest Time
5 AM - 6 PM
68AQI
14 hours / Day
420 hours / Month
In the last 30 days, during the daytime, the highest AQI was between 5 AM to 6 PM (Avg. 68), while the lowest AQI was between 5 AM to 6 PM (Avg. 68).
Night time
Avg. Highest Time
12 AM - 11 PM
67AQI
10 hours / Day
300 hours / Month
Avg. Lowest Time
12 AM - 11 PM
67AQI
10 hours / Day
300 hours / Month
In the last 30 days, during the daytime, the highest AQI was between 12 AM to 11 PM (Avg. 67), while the lowest AQI was between 12 AM to 11 PM (Avg. 67).
2025 Days Vs Air Quality
Kolkata, West Bengal, India
2025
52%
111
28%
60
20%
42
Total number of days with different AQI categories in last 214 days in 2025 (151 days remaining)
Good
0 DaysModerate
111 DaysPoor
60 DaysUnhealthy
42 DaysSevere
0 DaysHazardous
0 DaysUnder WHO’s Safe Air Quality Limits: 0%
Health Risk Level:
Extreme
In 2025, 0% of 214 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.
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
72AQI
72AQI
170AQI
146AQI
127AQI
90AQI
78AQI
81AQI
67AQI
72AQI
No. of days
Jan.Feb.Mar.Apr.MayJun.Jul.Aug.Sep.Oct.Nov.Dec.Total Days
2025108AQI
2
29
15
13
2
29
24
6
28
3
25
5
31
1
111
60
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 (108) shows an average percentage change of -4.07% (improved AQI) compared to previous years: 2020 (94), 2021 (123), 2022 (114), 2023 (117), 2024 (118).
