Fort William, 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
Fort William, Kolkata, West Bengal, India
2021
2022
2023
2024
2025
AQI
.
Days
AQI Trends: Highest and Lowest
Highest AQI recorded on
14th Aug 2024
138AQILowest AQI recorded on
30th Aug 2021
15AQISame Day Analysis (11th August ):
On this day, AQI across the 5 years varied significantly: 2025 ranks 4th highest AQI at 55 of Moderate air quality, showing improvement over 2024, 2023 and 2021 on the same day.
Download 2024 Annual Data
World Air Quality Report
Day & Night AQI Trend: 11th Aug - 12th Aug 2025
Fort William, Kolkata, West Bengal, India
AQI
Day
Night
.
5 AM11th Aug 2025
6 PM
4 AM12th Aug 2025
Day time
Avg. Highest Time
4PM11th Aug
73AQI
Avg. Lowest Time
6AM11th Aug
22AQI
Night time
Avg. Highest Time
10PM11th Aug
78AQI
Avg. Lowest Time
1AM12th Aug
64AQI
In the last 24 hours,
Fort William's AQI reached its highest point of 78 at 10 PM during the Night, while the lowest point, 22, was recorded at 6 AM during the Day between 11th Aug and 12th Aug 2025.
Day & Night AQI Trend : Jul - Aug 2025
Fort William, Kolkata, West Bengal, India
JulAug
13th - 14th14th - 15th15th - 16th16th - 17th17th - 18th18th - 19th19th - 20th20th - 21st21st - 22nd22nd - 23rd23rd - 24th24th - 25th25th - 26th26th - 27th27th - 28th28th - 29th29th - 30th30th - 31st31st - 01st01st - 02nd02nd - 03rd03rd - 04th04th - 05th05th - 06th06th - 07th07th - 08th08th - 09th09th - 10th10th - 11th11th - 12th12th
Day
Night
13th Jul 2025665 AMAQI
13th Jul 2025766 AMAQI
13th Jul 2025837 AMAQI
13th Jul 2025868 AMAQI
13th Jul 2025859 AMAQI
13th Jul 20258010 AMAQI
13th Jul 20257811 AMAQI
13th Jul 20258112 PMAQI
13th Jul 2025841 PMAQI
13th Jul 2025792 PMAQI
13th Jul 2025753 PMAQI
13th Jul 2025724 PMAQI
13th Jul 2025695 PMAQI
13th Jul 2025686 PMAQI
13th Jul 2025687 PMAQI
13th Jul 2025698 PMAQI
13th Jul 2025699 PMAQI
13th Jul 20257010 PMAQI
13th Jul 20257111 PMAQI
14th Jul 20257112 AMAQI
14th Jul 2025721 AMAQI
14th Jul 2025742 AMAQI
14th Jul 2025723 AMAQI
14th Jul 2025724 AMAQI
30°C28/33°C
14th Jul 2025705 AMAQI
14th Jul 2025606 AMAQI
14th Jul 2025657 AMAQI
14th Jul 2025728 AMAQI
14th Jul 2025709 AMAQI
14th Jul 20257110 AMAQI
14th Jul 20257011 AMAQI
14th Jul 20256712 PMAQI
14th Jul 2025711 PMAQI
14th Jul 2025692 PMAQI
14th Jul 2025703 PMAQI
14th Jul 2025704 PMAQI
14th Jul 2025705 PMAQI
14th Jul 2025696 PMAQI
14th Jul 2025697 PMAQI
14th Jul 2025718 PMAQI
14th Jul 2025709 PMAQI
14th Jul 20256910 PMAQI
14th Jul 20256811 PMAQI
15th Jul 20257012 AMAQI
15th Jul 2025701 AMAQI
15th Jul 2025702 AMAQI
15th Jul 2025683 AMAQI
15th Jul 2025694 AMAQI
26°C25/27°C
15th Jul 2025685 AMAQI
15th Jul 2025626 AMAQI
15th Jul 2025667 AMAQI
15th Jul 2025688 AMAQI
15th Jul 2025749 AMAQI
15th Jul 20256610 AMAQI
15th Jul 20257011 AMAQI
15th Jul 20257512 PMAQI
15th Jul 2025731 PMAQI
15th Jul 2025752 PMAQI
15th Jul 2025723 PMAQI
15th Jul 2025764 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 2025681 AMAQI
16th Jul 2025692 AMAQI
16th Jul 2025693 AMAQI
16th Jul 2025684 AMAQI
29°C26/33°C
16th Jul 2025715 AMAQI
16th Jul 2025686 AMAQI
16th Jul 2025667 AMAQI
16th Jul 2025628 AMAQI
16th Jul 2025699 AMAQI
16th Jul 20257010 AMAQI
16th Jul 20258111 AMAQI
16th Jul 20257912 PMAQI
16th Jul 2025741 PMAQI
16th Jul 2025822 PMAQI
16th Jul 2025843 PMAQI
16th Jul 2025804 PMAQI
16th Jul 2025735 PMAQI
16th Jul 2025726 PMAQI
16th Jul 2025737 PMAQI
16th Jul 2025718 PMAQI
16th Jul 2025709 PMAQI
16th Jul 20257110 PMAQI
16th Jul 20257211 PMAQI
17th Jul 20257112 AMAQI
17th Jul 2025681 AMAQI
17th Jul 2025692 AMAQI
17th Jul 2025693 AMAQI
17th Jul 2025694 AMAQI
30°C27/33°C
17th Jul 2025695 AMAQI
17th Jul 2025666 AMAQI
17th Jul 2025627 AMAQI
17th Jul 2025638 AMAQI
17th Jul 2025649 AMAQI
17th Jul 20256510 AMAQI
17th Jul 20257111 AMAQI
17th Jul 20257212 PMAQI
17th Jul 2025731 PMAQI
17th Jul 2025762 PMAQI
17th Jul 2025733 PMAQI
17th Jul 2025764 PMAQI
17th Jul 2025715 PMAQI
17th Jul 2025706 PMAQI
17th Jul 2025707 PMAQI
17th Jul 2025698 PMAQI
17th Jul 2025719 PMAQI
17th Jul 20257010 PMAQI
17th Jul 20257011 PMAQI
18th Jul 20257012 AMAQI
18th Jul 2025681 AMAQI
18th Jul 2025692 AMAQI
18th Jul 2025683 AMAQI
18th Jul 2025684 AMAQI
30°C27/35°C
18th Jul 2025695 AMAQI
18th Jul 2025676 AMAQI
18th Jul 2025597 AMAQI
18th Jul 2025638 AMAQI
18th Jul 2025689 AMAQI
18th Jul 20257110 AMAQI
18th Jul 20257311 AMAQI
18th Jul 20257512 PMAQI
18th Jul 2025711 PMAQI
18th Jul 2025702 PMAQI
18th Jul 2025713 PMAQI
18th Jul 2025764 PMAQI
18th Jul 2025715 PMAQI
18th Jul 2025716 PMAQI
18th Jul 2025727 PMAQI
18th Jul 2025778 PMAQI
18th Jul 2025739 PMAQI
18th Jul 20257210 PMAQI
18th Jul 20257411 PMAQI
19th Jul 20257012 AMAQI
19th Jul 2025681 AMAQI
19th Jul 2025682 AMAQI
19th Jul 2025683 AMAQI
19th Jul 2025684 AMAQI
30°C28/34°C
19th Jul 2025705 AMAQI
19th Jul 2025726 AMAQI
19th Jul 2025707 AMAQI
19th Jul 2025728 AMAQI
19th Jul 2025689 AMAQI
19th Jul 20257010 AMAQI
19th Jul 20257911 AMAQI
19th Jul 20258712 PMAQI
19th Jul 2025801 PMAQI
19th Jul 2025802 PMAQI
19th Jul 2025803 PMAQI
19th Jul 2025804 PMAQI
19th Jul 2025785 PMAQI
19th Jul 2025746 PMAQI
19th Jul 2025767 PMAQI
19th Jul 2025788 PMAQI
19th Jul 2025789 PMAQI
19th Jul 20257810 PMAQI
19th Jul 20257711 PMAQI
20th Jul 20257012 AMAQI
20th Jul 2025691 AMAQI
20th Jul 2025702 AMAQI
20th Jul 2025703 AMAQI
20th Jul 2025704 AMAQI
31°C28/34°C
20th Jul 2025725 AMAQI
20th Jul 2025686 AMAQI
20th Jul 2025777 AMAQI
20th Jul 2025668 AMAQI
20th Jul 2025659 AMAQI
20th Jul 20256710 AMAQI
20th Jul 20257111 AMAQI
20th Jul 20257012 PMAQI
20th Jul 2025741 PMAQI
20th Jul 2025722 PMAQI
20th Jul 2025773 PMAQI
20th Jul 2025784 PMAQI
20th Jul 2025805 PMAQI
20th Jul 2025756 PMAQI
20th Jul 2025757 PMAQI
20th Jul 2025728 PMAQI
20th Jul 2025719 PMAQI
20th Jul 20257310 PMAQI
20th Jul 20257211 PMAQI
21st Jul 20257012 AMAQI
21st Jul 2025701 AMAQI
21st Jul 2025702 AMAQI
21st Jul 2025703 AMAQI
21st Jul 2025714 AMAQI
31°C28/35°C
21st Jul 2025705 AMAQI
21st Jul 2025706 AMAQI
21st Jul 2025747 AMAQI
21st Jul 2025798 AMAQI
21st Jul 2025769 AMAQI
21st Jul 20257710 AMAQI
21st Jul 20258211 AMAQI
21st Jul 20258212 PMAQI
21st Jul 2025791 PMAQI
21st Jul 2025812 PMAQI
21st Jul 2025793 PMAQI
21st Jul 2025854 PMAQI
21st Jul 2025805 PMAQI
21st Jul 2025746 PMAQI
21st Jul 2025737 PMAQI
21st Jul 2025708 PMAQI
21st Jul 2025689 PMAQI
21st Jul 20257010 PMAQI
21st Jul 20257011 PMAQI
22nd Jul 20257112 AMAQI
22nd Jul 2025711 AMAQI
22nd Jul 2025702 AMAQI
22nd Jul 2025713 AMAQI
22nd Jul 2025724 AMAQI
31°C28/35°C
22nd Jul 2025715 AMAQI
22nd Jul 2025696 AMAQI
22nd Jul 2025667 AMAQI
22nd Jul 2025688 AMAQI
22nd Jul 2025709 AMAQI
22nd Jul 20257010 AMAQI
22nd Jul 20257411 AMAQI
22nd Jul 20257512 PMAQI
22nd Jul 2025711 PMAQI
22nd Jul 2025622 PMAQI
22nd Jul 2025743 PMAQI
22nd Jul 2025714 PMAQI
22nd Jul 2025815 PMAQI
22nd Jul 2025786 PMAQI
22nd Jul 2025727 PMAQI
22nd Jul 2025718 PMAQI
22nd Jul 2025739 PMAQI
22nd Jul 20257110 PMAQI
22nd Jul 20256611 PMAQI
23rd Jul 20257112 AMAQI
23rd Jul 2025701 AMAQI
23rd Jul 2025702 AMAQI
23rd Jul 2025693 AMAQI
23rd Jul 2025704 AMAQI
31°C28/34°C
23rd Jul 2025675 AMAQI
23rd Jul 2025716 AMAQI
23rd Jul 2025687 AMAQI
23rd Jul 2025748 AMAQI
23rd Jul 2025669 AMAQI
23rd Jul 20256510 AMAQI
23rd Jul 20256711 AMAQI
23rd Jul 20257012 PMAQI
23rd Jul 2025711 PMAQI
23rd Jul 2025782 PMAQI
23rd Jul 2025793 PMAQI
23rd Jul 2025784 PMAQI
23rd Jul 2025735 PMAQI
23rd Jul 2025726 PMAQI
23rd Jul 2025717 PMAQI
23rd Jul 2025738 PMAQI
23rd Jul 2025699 PMAQI
23rd Jul 20257510 PMAQI
23rd Jul 20257011 PMAQI
24th Jul 20256812 AMAQI
24th Jul 2025691 AMAQI
24th Jul 2025692 AMAQI
24th Jul 2025693 AMAQI
24th Jul 2025684 AMAQI
32°C28/36°C
24th Jul 2025705 AMAQI
24th Jul 2025626 AMAQI
24th Jul 2025587 AMAQI
24th Jul 2025568 AMAQI
24th Jul 2025629 AMAQI
24th Jul 20257010 AMAQI
24th Jul 20258111 AMAQI
24th Jul 20258812 PMAQI
24th Jul 2025741 PMAQI
24th Jul 2025742 PMAQI
24th Jul 2025843 PMAQI
24th Jul 2025804 PMAQI
24th Jul 2025745 PMAQI
24th Jul 2025746 PMAQI
24th Jul 2025687 PMAQI
24th Jul 2025698 PMAQI
24th Jul 2025719 PMAQI
24th Jul 20257010 PMAQI
24th Jul 20256911 PMAQI
25th Jul 20257012 AMAQI
25th Jul 2025681 AMAQI
25th Jul 2025682 AMAQI
25th Jul 2025683 AMAQI
25th Jul 2025694 AMAQI
30°C29/32°C
25th Jul 2025755 AMAQI
25th Jul 2025756 AMAQI
25th Jul 2025867 AMAQI
25th Jul 2025808 AMAQI
25th Jul 2025669 AMAQI
25th Jul 20255910 AMAQI
25th Jul 20256311 AMAQI
25th Jul 20256312 PMAQI
25th Jul 2025601 PMAQI
25th Jul 2025612 PMAQI
25th Jul 2025763 PMAQI
25th Jul 2025764 PMAQI
25th Jul 2025685 PMAQI
25th Jul 2025656 PMAQI
25th Jul 2025677 PMAQI
25th Jul 2025668 PMAQI
25th Jul 2025679 PMAQI
25th Jul 20256710 PMAQI
25th Jul 20257011 PMAQI
26th Jul 20256912 AMAQI
26th Jul 2025691 AMAQI
26th Jul 2025702 AMAQI
26th Jul 2025703 AMAQI
26th Jul 2025704 AMAQI
29°C28/32°C
26th Jul 2025685 AMAQI
26th Jul 2025626 AMAQI
26th Jul 2025577 AMAQI
26th Jul 2025638 AMAQI
26th Jul 2025709 AMAQI
26th Jul 20256510 AMAQI
26th Jul 20256211 AMAQI
26th Jul 20257012 PMAQI
26th Jul 2025801 PMAQI
26th Jul 2025652 PMAQI
26th Jul 2025443 PMAQI
26th Jul 2025534 PMAQI
26th Jul 2025545 PMAQI
26th Jul 2025566 PMAQI
26th Jul 2025567 PMAQI
26th Jul 2025628 PMAQI
26th Jul 2025609 PMAQI
26th Jul 20256310 PMAQI
26th Jul 20256411 PMAQI
27th Jul 20256612 AMAQI
27th Jul 2025641 AMAQI
27th Jul 2025642 AMAQI
27th Jul 2025643 AMAQI
27th Jul 2025634 AMAQI
29°C27/31°C
27th Jul 2025635 AMAQI
27th Jul 2025536 AMAQI
27th Jul 2025557 AMAQI
27th Jul 2025548 AMAQI
27th Jul 2025559 AMAQI
27th Jul 20255510 AMAQI
27th Jul 20256411 AMAQI
27th Jul 20255912 PMAQI
27th Jul 2025571 PMAQI
27th Jul 2025622 PMAQI
27th Jul 2025703 PMAQI
27th Jul 2025744 PMAQI
27th Jul 2025665 PMAQI
27th Jul 2025666 PMAQI
27th Jul 2025677 PMAQI
27th Jul 2025688 PMAQI
27th Jul 2025659 PMAQI
27th Jul 20256610 PMAQI
27th Jul 20256611 PMAQI
28th Jul 20256312 AMAQI
28th Jul 2025611 AMAQI
28th Jul 2025632 AMAQI
28th Jul 2025623 AMAQI
28th Jul 2025604 AMAQI
30°C27/34°C
28th Jul 2025615 AMAQI
28th Jul 2025636 AMAQI
28th Jul 2025627 AMAQI
28th Jul 2025668 AMAQI
28th Jul 2025679 AMAQI
28th Jul 20257110 AMAQI
28th Jul 20257111 AMAQI
28th Jul 20257012 PMAQI
28th Jul 2025701 PMAQI
28th Jul 2025672 PMAQI
28th Jul 2025713 PMAQI
28th Jul 2025764 PMAQI
28th Jul 2025665 PMAQI
28th Jul 2025656 PMAQI
28th Jul 2025657 PMAQI
28th Jul 2025678 PMAQI
28th Jul 2025689 PMAQI
28th Jul 20256710 PMAQI
28th Jul 20256611 PMAQI
29th Jul 20256412 AMAQI
29th Jul 2025641 AMAQI
29th Jul 2025642 AMAQI
29th Jul 2025643 AMAQI
29th Jul 2025624 AMAQI
29°C27/31°C
29th Jul 2025645 AMAQI
29th Jul 2025626 AMAQI
29th Jul 2025647 AMAQI
29th Jul 2025658 AMAQI
29th Jul 2025739 AMAQI
29th Jul 20257110 AMAQI
29th Jul 20257411 AMAQI
29th Jul 20257512 PMAQI
29th Jul 2025741 PMAQI
29th Jul 2025782 PMAQI
29th Jul 2025793 PMAQI
29th Jul 2025794 PMAQI
29th Jul 2025705 PMAQI
29th Jul 2025666 PMAQI
29th Jul 2025687 PMAQI
29th Jul 2025678 PMAQI
29th Jul 2025669 PMAQI
29th Jul 20256910 PMAQI
29th Jul 20256811 PMAQI
30th Jul 20256712 AMAQI
30th Jul 2025651 AMAQI
30th Jul 2025652 AMAQI
30th Jul 2025643 AMAQI
30th Jul 2025644 AMAQI
27°C27/27°C
30th Jul 2025635 AMAQI
30th Jul 2025566 AMAQI
30th Jul 2025587 AMAQI
30th Jul 2025608 AMAQI
30th Jul 2025639 AMAQI
30th Jul 20256010 AMAQI
30th Jul 20256011 AMAQI
30th Jul 20256212 PMAQI
30th Jul 2025611 PMAQI
30th Jul 2025612 PMAQI
30th Jul 2025683 PMAQI
30th Jul 2025594 PMAQI
30th Jul 2025615 PMAQI
30th Jul 2025616 PMAQI
30th Jul 2025597 PMAQI
30th Jul 2025688 PMAQI
30th Jul 2025679 PMAQI
30th Jul 20256610 PMAQI
30th Jul 20257011 PMAQI
31st Jul 20256712 AMAQI
31st Jul 2025721 AMAQI
31st Jul 2025722 AMAQI
31st Jul 2025723 AMAQI
31st Jul 2025724 AMAQI
27°C26/28°C
31st Jul 2025725 AMAQI
31st Jul 2025726 AMAQI
31st Jul 2025697 AMAQI
31st Jul 2025638 AMAQI
31st Jul 2025669 AMAQI
31st Jul 20256910 AMAQI
31st Jul 20257611 AMAQI
31st Jul 20257012 PMAQI
31st Jul 2025751 PMAQI
31st Jul 2025742 PMAQI
31st Jul 2025753 PMAQI
31st Jul 2025704 PMAQI
31st Jul 2025675 PMAQI
31st Jul 2025746 PMAQI
31st Jul 2025767 PMAQI
31st Jul 2025838 PMAQI
31st Jul 2025789 PMAQI
31st Jul 20258210 PMAQI
31st Jul 20258811 PMAQI
1st Aug 20257212 AMAQI
1st Aug 2025661 AMAQI
1st Aug 2025662 AMAQI
1st Aug 2025663 AMAQI
1st Aug 2025684 AMAQI
28°C26/32°C
1st Aug 2025715 AMAQI
1st Aug 2025746 AMAQI
1st Aug 2025737 AMAQI
1st Aug 2025668 AMAQI
1st Aug 2025649 AMAQI
1st Aug 20256810 AMAQI
1st Aug 20257211 AMAQI
1st Aug 20257812 PMAQI
1st Aug 2025771 PMAQI
1st Aug 2025792 PMAQI
1st Aug 2025743 PMAQI
1st Aug 2025724 PMAQI
1st Aug 2025745 PMAQI
1st Aug 2025746 PMAQI
1st Aug 2025757 PMAQI
1st Aug 2025768 PMAQI
1st Aug 2025729 PMAQI
1st Aug 20257610 PMAQI
1st Aug 20258311 PMAQI
2nd Aug 20257112 AMAQI
2nd Aug 2025681 AMAQI
2nd Aug 2025682 AMAQI
2nd Aug 2025683 AMAQI
2nd Aug 2025684 AMAQI
29°C26/33°C
2nd Aug 2025685 AMAQI
2nd Aug 2025776 AMAQI
2nd Aug 2025707 AMAQI
2nd Aug 2025798 AMAQI
2nd Aug 2025779 AMAQI
2nd Aug 202510010 AMAQI
2nd Aug 202510611 AMAQI
2nd Aug 20259512 PMAQI
2nd Aug 2025841 PMAQI
2nd Aug 2025962 PMAQI
2nd Aug 2025943 PMAQI
2nd Aug 20251044 PMAQI
2nd Aug 2025875 PMAQI
2nd Aug 2025846 PMAQI
2nd Aug 2025847 PMAQI
2nd Aug 2025758 PMAQI
2nd Aug 2025869 PMAQI
2nd Aug 20259110 PMAQI
2nd Aug 20258711 PMAQI
3rd Aug 20257212 AMAQI
3rd Aug 2025741 AMAQI
3rd Aug 2025762 AMAQI
3rd Aug 2025723 AMAQI
3rd Aug 2025744 AMAQI
31°C28/35°C
3rd Aug 2025695 AMAQI
3rd Aug 2025806 AMAQI
3rd Aug 2025727 AMAQI
3rd Aug 2025918 AMAQI
3rd Aug 2025849 AMAQI
3rd Aug 20257810 AMAQI
3rd Aug 20257911 AMAQI
3rd Aug 20259012 PMAQI
3rd Aug 2025991 PMAQI
3rd Aug 2025792 PMAQI
3rd Aug 2025723 PMAQI
3rd Aug 2025774 PMAQI
3rd Aug 2025765 PMAQI
3rd Aug 2025786 PMAQI
3rd Aug 2025787 PMAQI
3rd Aug 2025808 PMAQI
3rd Aug 2025759 PMAQI
3rd Aug 20257410 PMAQI
3rd Aug 20257211 PMAQI
4th Aug 20257412 AMAQI
4th Aug 2025741 AMAQI
4th Aug 2025772 AMAQI
4th Aug 2025773 AMAQI
4th Aug 2025774 AMAQI
30°C28/33°C
4th Aug 2025795 AMAQI
4th Aug 2025666 AMAQI
4th Aug 2025617 AMAQI
4th Aug 2025688 AMAQI
4th Aug 2025729 AMAQI
4th Aug 20256810 AMAQI
4th Aug 20257911 AMAQI
4th Aug 20258012 PMAQI
4th Aug 2025671 PMAQI
4th Aug 2025732 PMAQI
4th Aug 20251043 PMAQI
4th Aug 2025794 PMAQI
4th Aug 2025835 PMAQI
4th Aug 2025826 PMAQI
4th Aug 2025787 PMAQI
4th Aug 2025808 PMAQI
4th Aug 2025889 PMAQI
4th Aug 20259110 PMAQI
4th Aug 20258411 PMAQI
5th Aug 20258012 AMAQI
5th Aug 2025721 AMAQI
5th Aug 2025722 AMAQI
5th Aug 2025703 AMAQI
5th Aug 2025704 AMAQI
30°C27/33°C
5th Aug 2025695 AMAQI
5th Aug 2025746 AMAQI
5th Aug 2025777 AMAQI
5th Aug 2025818 AMAQI
5th Aug 2025649 AMAQI
5th Aug 20257210 AMAQI
5th Aug 20257211 AMAQI
5th Aug 20257712 PMAQI
5th Aug 2025791 PMAQI
5th Aug 2025782 PMAQI
5th Aug 2025783 PMAQI
5th Aug 2025884 PMAQI
5th Aug 2025805 PMAQI
5th Aug 2025796 PMAQI
5th Aug 2025827 PMAQI
5th Aug 2025828 PMAQI
5th Aug 2025809 PMAQI
5th Aug 20258210 PMAQI
5th Aug 20258111 PMAQI
6th Aug 20257712 AMAQI
6th Aug 2025711 AMAQI
6th Aug 2025712 AMAQI
6th Aug 2025723 AMAQI
6th Aug 2025724 AMAQI
30°C27/34°C
6th Aug 2025715 AMAQI
6th Aug 2025546 AMAQI
6th Aug 2025767 AMAQI
6th Aug 2025708 AMAQI
6th Aug 2025669 AMAQI
6th Aug 20258010 AMAQI
6th Aug 20258811 AMAQI
6th Aug 20257712 PMAQI
6th Aug 2025931 PMAQI
6th Aug 2025922 PMAQI
6th Aug 2025943 PMAQI
6th Aug 20251184 PMAQI
6th Aug 2025795 PMAQI
6th Aug 2025816 PMAQI
6th Aug 2025827 PMAQI
6th Aug 2025748 PMAQI
6th Aug 2025779 PMAQI
6th Aug 20258310 PMAQI
6th Aug 20258011 PMAQI
7th Aug 20257512 AMAQI
7th Aug 2025701 AMAQI
7th Aug 2025702 AMAQI
7th Aug 2025713 AMAQI
7th Aug 2025714 AMAQI
29°C28/31°C
7th Aug 2025785 AMAQI
7th Aug 2025836 AMAQI
7th Aug 2025857 AMAQI
7th Aug 20251008 AMAQI
7th Aug 20251089 AMAQI
7th Aug 202510510 AMAQI
7th Aug 20258311 AMAQI
7th Aug 20258612 PMAQI
7th Aug 2025851 PMAQI
7th Aug 2025892 PMAQI
7th Aug 2025873 PMAQI
7th Aug 2025884 PMAQI
7th Aug 2025845 PMAQI
7th Aug 2025846 PMAQI
7th Aug 2025837 PMAQI
7th Aug 2025828 PMAQI
7th Aug 2025829 PMAQI
7th Aug 20257810 PMAQI
7th Aug 20257511 PMAQI
8th Aug 20258012 AMAQI
8th Aug 2025801 AMAQI
8th Aug 2025792 AMAQI
8th Aug 2025803 AMAQI
8th Aug 2025804 AMAQI
29°C27/32°C
8th Aug 2025765 AMAQI
8th Aug 2025656 AMAQI
8th Aug 2025697 AMAQI
8th Aug 2025668 AMAQI
8th Aug 2025669 AMAQI
8th Aug 20256610 AMAQI
8th Aug 20256811 AMAQI
8th Aug 20257412 PMAQI
8th Aug 2025721 PMAQI
8th Aug 2025872 PMAQI
8th Aug 2025963 PMAQI
8th Aug 2025974 PMAQI
8th Aug 2025825 PMAQI
8th Aug 2025786 PMAQI
8th Aug 2025787 PMAQI
8th Aug 2025818 PMAQI
8th Aug 2025789 PMAQI
8th Aug 20257510 PMAQI
8th Aug 20256011 PMAQI
9th Aug 20257212 AMAQI
9th Aug 2025761 AMAQI
9th Aug 2025762 AMAQI
9th Aug 2025773 AMAQI
9th Aug 2025754 AMAQI
28°C27/30°C
9th Aug 2025645 AMAQI
9th Aug 2025416 AMAQI
9th Aug 2025457 AMAQI
9th Aug 2025318 AMAQI
9th Aug 2025379 AMAQI
9th Aug 20253010 AMAQI
9th Aug 20253711 AMAQI
9th Aug 20253612 PMAQI
9th Aug 2025321 PMAQI
9th Aug 2025382 PMAQI
9th Aug 2025393 PMAQI
9th Aug 2025324 PMAQI
9th Aug 2025505 PMAQI
9th Aug 2025566 PMAQI
9th Aug 2025567 PMAQI
9th Aug 2025568 PMAQI
9th Aug 2025569 PMAQI
9th Aug 20255610 PMAQI
9th Aug 20255611 PMAQI
10th Aug 20256312 AMAQI
10th Aug 2025661 AMAQI
10th Aug 2025642 AMAQI
10th Aug 2025643 AMAQI
10th Aug 2025644 AMAQI
30°C27/34°C
10th Aug 2025655 AMAQI
10th Aug 2025296 AMAQI
10th Aug 2025437 AMAQI
10th Aug 2025318 AMAQI
10th Aug 2025269 AMAQI
10th Aug 20253310 AMAQI
10th Aug 20253211 AMAQI
10th Aug 20253112 PMAQI
10th Aug 2025351 PMAQI
10th Aug 2025422 PMAQI
10th Aug 2025413 PMAQI
10th Aug 2025364 PMAQI
10th Aug 2025495 PMAQI
10th Aug 2025546 PMAQI
10th Aug 2025547 PMAQI
10th Aug 2025558 PMAQI
10th Aug 2025549 PMAQI
10th Aug 20255510 PMAQI
10th Aug 20255611 PMAQI
11th Aug 20255712 AMAQI
11th Aug 2025611 AMAQI
11th Aug 2025582 AMAQI
11th Aug 2025583 AMAQI
11th Aug 2025604 AMAQI
30°C27/35°C
11th Aug 2025515 AMAQI
11th Aug 2025226 AMAQI
11th Aug 2025327 AMAQI
11th Aug 2025438 AMAQI
11th Aug 2025279 AMAQI
11th Aug 20252910 AMAQI
11th Aug 20254411 AMAQI
11th Aug 20256112 PMAQI
11th Aug 2025671 PMAQI
11th Aug 2025682 PMAQI
11th Aug 2025693 PMAQI
11th Aug 2025734 PMAQI
11th Aug 2025705 PMAQI
11th Aug 2025726 PMAQI
11th Aug 2025667 PMAQI
11th Aug 2025708 PMAQI
11th Aug 2025749 PMAQI
11th Aug 20257810 PMAQI
11th Aug 20257311 PMAQI
12th Aug 20256712 AMAQI
12th Aug 2025641 AMAQI
12th Aug 2025652 AMAQI
12th Aug 2025663 AMAQI
12th Aug 2025664 AMAQI
30°C28/34°C
12th Aug 2025775 AMAQI
5 AM12th Aug 2025756 AMAQI
12th Aug 2025737 AMAQI
12th Aug 2025648 AMAQI
12th Aug 2025819 AMAQI
12th Aug 20258510 AMAQI
12th Aug 20259811 AMAQI
11 AM12th Aug 202511112 PMAQI
12th Aug 2025951 PMAQI
12th Aug 2025972 PMAQI
12th Aug 2025803 PMAQI
12th Aug 20251074 PMAQI
12th Aug 2025825 PMAQI
12th Aug 2025706 PMAQI
6 PM11 PM
4 AM
--°C/°C
Day time
Avg. Highest Time
11 AM - 4 PM
74AQI
6 hours / Day
180 hours / Month
Avg. Lowest Time
6 AM - 10 AM
66AQI
5 hours / Day
150 hours / Month
In the last 30 days, during the daytime, the highest AQI was between 11 AM to 4 PM (Avg. 74), while the lowest AQI was between 6 AM to 10 AM (Avg. 66).
Night time
Avg. Highest Time
12 AM - 11 PM
71AQI
10 hours / Day
300 hours / Month
Avg. Lowest Time
12 AM - 11 PM
71AQI
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. 71), while the lowest AQI was between 12 AM to 11 PM (Avg. 71).
2025 Days Vs Air Quality
Fort William, Kolkata, West Bengal, India
2025
0.4%
1
53%
119
26%
59
20%
44
Total number of days with different AQI categories in last 224 days in 2025 (141 days remaining)
Good
1 DaysModerate
119 DaysPoor
59 DaysUnhealthy
44 DaysSevere
0 DaysHazardous
0 DaysUnder WHO’s Safe Air Quality Limits: 0.45%
Health Risk Level:
Extreme
In 2025, 0.45% of 224 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
Fort William, 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
164AQI
164AQI
3rd January 2025
176AQI
176AQI
4th January 2025
177AQI
177AQI
5th January 2025
175AQI
175AQI
6th January 2025
170AQI
170AQI
7th January 2025
174AQI
174AQI
8th January 2025
153AQI
153AQI
9th January 2025
163AQI
163AQI
10th January 2025
173AQI
173AQI
11th January 2025
182AQI
182AQI
12th January 2025
185AQI
185AQI
13th January 2025
188AQI
188AQI
14th January 2025
179AQI
179AQI
15th January 2025
171AQI
171AQI
16th January 2025
169AQI
169AQI
17th January 2025
169AQI
169AQI
18th January 2025
167AQI
167AQI
19th January 2025
161AQI
161AQI
20th January 2025
164AQI
164AQI
21st January 2025
173AQI
173AQI
22nd January 2025
180AQI
180AQI
23rd January 2025
183AQI
183AQI
24th January 2025
177AQI
177AQI
25th January 2025
173AQI
173AQI
26th January 2025
155AQI
155AQI
27th January 2025
170AQI
170AQI
28th January 2025
170AQI
170AQI
29th January 2025
158AQI
158AQI
30th January 2025
146AQI
146AQI
31st January 2025
146AQI
146AQI
1st February 2025
140AQI
140AQI
2nd February 2025
155AQI
155AQI
3rd February 2025
160AQI
160AQI
4th February 2025
158AQI
158AQI
5th February 2025
168AQI
168AQI
6th February 2025
158AQI
158AQI
7th February 2025
147AQI
147AQI
8th February 2025
156AQI
156AQI
9th February 2025
159AQI
159AQI
10th February 2025
160AQI
160AQI
11th February 2025
149AQI
149AQI
12th February 2025
142AQI
142AQI
13th February 2025
145AQI
145AQI
14th February 2025
150AQI
150AQI
15th February 2025
153AQI
153AQI
16th February 2025
146AQI
146AQI
17th February 2025
125AQI
125AQI
18th February 2025
132AQI
132AQI
19th February 2025
132AQI
132AQI
20th February 2025
120AQI
120AQI
21st February 2025
132AQI
132AQI
22nd February 2025
125AQI
125AQI
23rd February 2025
133AQI
133AQI
24th February 2025
143AQI
143AQI
25th February 2025
154AQI
154AQI
26th February 2025
155AQI
155AQI
27th February 2025
164AQI
164AQI
28th February 2025
158AQI
158AQI
1st March 2025
135AQI
135AQI
2nd March 2025
147AQI
147AQI
3rd March 2025
142AQI
142AQI
4th March 2025
140AQI
140AQI
5th March 2025
150AQI
150AQI
6th March 2025
141AQI
141AQI
7th March 2025
157AQI
157AQI
8th March 2025
142AQI
142AQI
9th March 2025
134AQI
134AQI
10th March 2025
136AQI
136AQI
11th March 2025
124AQI
124AQI
12th March 2025
136AQI
136AQI
13th March 2025
118AQI
118AQI
14th March 2025
115AQI
115AQI
15th March 2025
103AQI
103AQI
16th March 2025
96AQI
96AQI
17th March 2025
105AQI
105AQI
18th March 2025
106AQI
106AQI
19th March 2025
137AQI
137AQI
20th March 2025
106AQI
106AQI
21st March 2025
129AQI
129AQI
22nd March 2025
91AQI
91AQI
23rd March 2025
129AQI
129AQI
24th March 2025
137AQI
137AQI
25th March 2025
152AQI
152AQI
26th March 2025
129AQI
129AQI
27th March 2025
133AQI
133AQI
28th March 2025
141AQI
141AQI
29th March 2025
146AQI
146AQI
30th March 2025
143AQI
143AQI
31st March 2025
125AQI
125AQI
1st April 2025
116AQI
116AQI
2nd April 2025
103AQI
103AQI
3rd April 2025
103AQI
103AQI
4th April 2025
118AQI
118AQI
5th April 2025
120AQI
120AQI
6th April 2025
111AQI
111AQI
7th April 2025
90AQI
90AQI
8th April 2025
83AQI
83AQI
9th April 2025
70AQI
70AQI
10th April 2025
72AQI
72AQI
11th April 2025
80AQI
80AQI
12th April 2025
76AQI
76AQI
13th April 2025
93AQI
93AQI
14th April 2025
92AQI
92AQI
15th April 2025
96AQI
96AQI
16th April 2025
102AQI
102AQI
17th April 2025
84AQI
84AQI
18th April 2025
76AQI
76AQI
19th April 2025
87AQI
87AQI
20th April 2025
86AQI
86AQI
21st April 2025
85AQI
85AQI
22nd April 2025
90AQI
90AQI
23rd April 2025
100AQI
100AQI
24th April 2025
86AQI
86AQI
25th April 2025
80AQI
80AQI
26th April 2025
69AQI
69AQI
27th April 2025
87AQI
87AQI
28th April 2025
102AQI
102AQI
29th April 2025
84AQI
84AQI
30th April 2025
83AQI
83AQI
1st May 2025
84AQI
84AQI
2nd May 2025
81AQI
81AQI
3rd May 2025
78AQI
78AQI
4th May 2025
78AQI
78AQI
5th May 2025
75AQI
75AQI
6th May 2025
77AQI
77AQI
7th May 2025
92AQI
92AQI
8th May 2025
95AQI
95AQI
9th May 2025
95AQI
95AQI
10th May 2025
111AQI
111AQI
11th May 2025
113AQI
113AQI
12th May 2025
100AQI
100AQI
13th May 2025
97AQI
97AQI
14th May 2025
90AQI
90AQI
15th May 2025
84AQI
84AQI
16th May 2025
79AQI
79AQI
17th May 2025
77AQI
77AQI
18th May 2025
72AQI
72AQI
19th May 2025
63AQI
63AQI
20th May 2025
60AQI
60AQI
21st May 2025
61AQI
61AQI
22nd May 2025
71AQI
71AQI
23rd May 2025
71AQI
71AQI
24th May 2025
64AQI
64AQI
25th May 2025
62AQI
62AQI
26th May 2025
59AQI
59AQI
27th May 2025
60AQI
60AQI
28th May 2025
58AQI
58AQI
29th May 2025
62AQI
62AQI
30th May 2025
64AQI
64AQI
31st May 2025
87AQI
87AQI
1st June 2025
99AQI
99AQI
2nd June 2025
112AQI
112AQI
3rd June 2025
100AQI
100AQI
4th June 2025
91AQI
91AQI
5th June 2025
90AQI
90AQI
6th June 2025
97AQI
97AQI
7th June 2025
110AQI
110AQI
8th June 2025
116AQI
116AQI
9th June 2025
110AQI
110AQI
10th June 2025
104AQI
104AQI
11th June 2025
91AQI
91AQI
12th June 2025
77AQI
77AQI
13th June 2025
79AQI
79AQI
14th June 2025
83AQI
83AQI
15th June 2025
76AQI
76AQI
16th June 2025
69AQI
69AQI
17th June 2025
67AQI
67AQI
18th June 2025
68AQI
68AQI
19th June 2025
69AQI
69AQI
20th June 2025
71AQI
71AQI
21st June 2025
76AQI
76AQI
22nd June 2025
82AQI
82AQI
23rd June 2025
78AQI
78AQI
24th June 2025
72AQI
72AQI
25th June 2025
72AQI
72AQI
26th June 2025
65AQI
65AQI
27th June 2025
64AQI
64AQI
28th June 2025
69AQI
69AQI
29th June 2025
69AQI
69AQI
30th June 2025
72AQI
72AQI
1st July 2025
71AQI
71AQI
2nd July 2025
65AQI
65AQI
3rd July 2025
69AQI
69AQI
4th July 2025
71AQI
71AQI
5th July 2025
71AQI
71AQI
6th July 2025
67AQI
67AQI
7th July 2025
66AQI
66AQI
8th July 2025
65AQI
65AQI
9th July 2025
63AQI
63AQI
10th July 2025
62AQI
62AQI
11th July 2025
64AQI
64AQI
12th July 2025
69AQI
69AQI
13th July 2025
72AQI
72AQI
14th July 2025
70AQI
70AQI
15th July 2025
70AQI
70AQI
16th July 2025
72AQI
72AQI
17th July 2025
69AQI
69AQI
18th July 2025
70AQI
70AQI
19th July 2025
74AQI
74AQI
20th July 2025
72AQI
72AQI
21st July 2025
74AQI
74AQI
22nd July 2025
71AQI
71AQI
23rd July 2025
71AQI
71AQI
24th July 2025
70AQI
70AQI
25th July 2025
69AQI
69AQI
26th July 2025
63AQI
63AQI
27th July 2025
63AQI
63AQI
28th July 2025
66AQI
66AQI
29th July 2025
68AQI
68AQI
30th July 2025
63AQI
63AQI
31st July 2025
74AQI
74AQI
1st August 2025
73AQI
73AQI
2nd August 2025
82AQI
82AQI
3rd August 2025
77AQI
77AQI
4th August 2025
78AQI
78AQI
5th August 2025
77AQI
77AQI
6th August 2025
78AQI
78AQI
7th August 2025
82AQI
82AQI
8th August 2025
76AQI
76AQI
9th August 2025
53AQI
53AQI
10th August 2025
50AQI
50AQI
11th August 2025
55AQI
55AQI
170AQI
147AQI
130AQI
91AQI
78AQI
83AQI
69AQI
71AQI
No. of days
Jan.Feb.Mar.Apr.MayJun.Jul.Aug.Sep.Oct.Nov.Dec.Total Days
2025107AQI
2
29
15
13
2
27
2
22
8
29
2
25
5
31
1
10
1
119
59
44
Highest AQI recorded in
January170AQI
Lowest AQI recorded in
July69AQI
2024122AQI
10
20
1
4
18
7
10
12
9
2
23
5
1
19
11
4
19
7
7
23
1
1
25
5
3
22
5
15
13
3
1
10
18
1
4
27
16
136
95
90
28
1
Highest AQI recorded in
January219AQI
Lowest AQI recorded in
July59AQI
2023109AQI
8
23
7
17
4
16
15
17
11
1
22
4
7
22
1
12
19
4
26
1
4
25
1
8
8
12
4
21
4
1
2
20
7
29
163
71
80
11
Highest AQI recorded in
December181AQI
Lowest AQI recorded in
July52AQI
2022106AQI
1
3
25
2
10
16
7
9
14
4
17
6
1
1
22
8
27
3
23
8
10
2
8
19
1
9
7
6
7
20
10
1
7
20
55
113
73
93
Highest AQI recorded in
January168AQI
Lowest AQI recorded in
August39AQI
2021123AQI
19
2
10
2
24
2
1
7
23
9
19
2
28
3
30
21
9
8
19
2
8
2
4
4
12
7
1
7
12
1
1
3
19
1
92
55
54
106
5
10
Highest AQI recorded in
January311AQI
Lowest AQI recorded in
June37AQI
2020109AQI
1
8
3
2
21
6
1
7
24
10
19
16
15
12
13
1
12
17
1
5
13
11
2
2
6
22
16
4
11
64
125
33
44
4
11
Highest AQI recorded in
December341AQI
Lowest AQI recorded in
July53AQI
Most & Least Polluted Years Over the Last 6 Years
Most Polluted Year Recorded
2021(Avg.)
123AQILeast Polluted Year Recorded
2022(Avg.)
106AQIFort William's annual 2025 AQI (107) shows an average percentage change of -5.1% (improved AQI) compared to previous years: 2020 (109), 2021 (123), 2022 (106), 2023 (109), 2024 (122).
