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Velachery Res. Area, Chennai, Tamil Nadu, 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

Velachery Res. Area, Chennai, Tamil Nadu, India

2021
2022
2023
2024
2025
AQI
.
Days

AQI Trends: Highest and Lowest

Highest AQI recorded on
24th Oct 2022
211AQI
Lowest AQI recorded on
16th Oct 2022
49AQI

Same Day Analysis (4th October ):
On this day, AQI across the 5 years varied significantly: 2025 ranks 2nd highest AQI at 88 of Moderate air quality, showing improvement over 2024 on the same day.

Download 2024 Annual Data

World Air Quality Report

Globe

Day & Night AQI Trend: 4th Oct - 5th Oct 2025

Velachery Res. Area, Chennai, Tamil Nadu, India

AQI
Day
Night
.

5 AM4th Oct 2025

6 PM

4 AM5th Oct 2025

Day time
Avg. Highest Time
9AM4th Oct

101AQI

Avg. Lowest Time
4PM4th Oct

80AQI

Night time
Avg. Highest Time
10PM4th Oct

100AQI

Avg. Lowest Time
4AM5th Oct

77AQI

In the last 24 hours,

Velachery Res. Area's AQI reached its highest point of 101 at 9 AM during the Day, while the lowest point, 77, was recorded at 4 AM during the Night between 4th Oct and 5th Oct 2025.

Day & Night AQI Trend : Sep - Oct 2025

Velachery Res. Area, Chennai, Tamil Nadu, India

SepOct
05th - 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 - 01st01st - 02nd02nd - 03rd03rd - 04th04th - 05th05th
Day
Night
5th Sep 2025615 AMAQI
5th Sep 2025746 AMAQI
5th Sep 2025607 AMAQI
5th Sep 2025688 AMAQI
5th Sep 2025749 AMAQI
5th Sep 20256810 AMAQI
5th Sep 20256611 AMAQI
5th Sep 20255612 PMAQI
5th Sep 2025551 PMAQI
5th Sep 2025712 PMAQI
5th Sep 2025623 PMAQI
5th Sep 2025594 PMAQI
5th Sep 2025625 PMAQI
5th Sep 2025676 PMAQI
5th Sep 2025727 PMAQI
5th Sep 2025728 PMAQI
5th Sep 2025719 PMAQI
5th Sep 20257310 PMAQI
5th Sep 20257711 PMAQI
6th Sep 20256912 AMAQI
6th Sep 2025651 AMAQI
6th Sep 2025642 AMAQI
6th Sep 2025653 AMAQI
6th Sep 2025644 AMAQI

31°C29/34°C

6th Sep 2025665 AMAQI
6th Sep 2025817 AMAQI
6th Sep 2025718 AMAQI
6th Sep 2025809 AMAQI
6th Sep 20257310 AMAQI
6th Sep 20257111 AMAQI
6th Sep 20258112 PMAQI
6th Sep 2025771 PMAQI
6th Sep 2025742 PMAQI
6th Sep 2025683 PMAQI
6th Sep 2025674 PMAQI
6th Sep 2025695 PMAQI
6th Sep 2025706 PMAQI
6th Sep 2025827 PMAQI
6th Sep 2025808 PMAQI
6th Sep 2025769 PMAQI
6th Sep 20258010 PMAQI
6th Sep 20257611 PMAQI
7th Sep 20256612 AMAQI
7th Sep 2025711 AMAQI
7th Sep 2025702 AMAQI
7th Sep 2025703 AMAQI
7th Sep 2025704 AMAQI

30°C28/33°C

7th Sep 2025715 AMAQI
7th Sep 2025636 AMAQI
7th Sep 2025767 AMAQI
7th Sep 2025678 AMAQI
7th Sep 2025759 AMAQI
7th Sep 20257210 AMAQI
7th Sep 20257211 AMAQI
7th Sep 20257712 PMAQI
7th Sep 2025761 PMAQI
7th Sep 2025622 PMAQI
7th Sep 2025663 PMAQI
7th Sep 2025674 PMAQI
7th Sep 2025705 PMAQI
7th Sep 2025666 PMAQI
7th Sep 2025737 PMAQI
7th Sep 2025808 PMAQI
7th Sep 2025809 PMAQI
7th Sep 20257810 PMAQI
7th Sep 20257811 PMAQI
8th Sep 20257312 AMAQI
8th Sep 2025701 AMAQI
8th Sep 2025702 AMAQI
8th Sep 2025703 AMAQI
8th Sep 2025714 AMAQI

30°C28/33°C

8th Sep 2025675 AMAQI
8th Sep 2025666 AMAQI
8th Sep 2025667 AMAQI
8th Sep 2025668 AMAQI
8th Sep 2025729 AMAQI
8th Sep 20256610 AMAQI
8th Sep 20257611 AMAQI
8th Sep 20257612 PMAQI
8th Sep 2025841 PMAQI
8th Sep 2025642 PMAQI
8th Sep 2025733 PMAQI
8th Sep 2025714 PMAQI
8th Sep 2025685 PMAQI
8th Sep 2025766 PMAQI
8th Sep 2025787 PMAQI
8th Sep 2025738 PMAQI
8th Sep 2025849 PMAQI
8th Sep 20258010 PMAQI
8th Sep 20257811 PMAQI
9th Sep 20257512 AMAQI
9th Sep 2025701 AMAQI
9th Sep 2025692 AMAQI
9th Sep 2025703 AMAQI
9th Sep 2025694 AMAQI

30°C28/33°C

9th Sep 2025745 AMAQI
9th Sep 2025836 AMAQI
9th Sep 2025757 AMAQI
9th Sep 2025868 AMAQI
9th Sep 2025959 AMAQI
9th Sep 20257310 AMAQI
9th Sep 20257811 AMAQI
9th Sep 20257312 PMAQI
9th Sep 2025761 PMAQI
9th Sep 2025722 PMAQI
9th Sep 2025883 PMAQI
9th Sep 2025814 PMAQI
9th Sep 2025825 PMAQI
9th Sep 2025746 PMAQI
9th Sep 2025807 PMAQI
9th Sep 2025768 PMAQI
9th Sep 2025859 PMAQI
9th Sep 202510110 PMAQI
9th Sep 20258311 PMAQI
10th Sep 20258012 AMAQI
10th Sep 2025761 AMAQI
10th Sep 2025742 AMAQI
10th Sep 2025743 AMAQI
10th Sep 2025744 AMAQI

30°C28/34°C

10th Sep 2025735 AMAQI
10th Sep 2025746 AMAQI
10th Sep 2025817 AMAQI
10th Sep 2025808 AMAQI
10th Sep 2025849 AMAQI
10th Sep 20258610 AMAQI
10th Sep 20258411 AMAQI
10th Sep 20258112 PMAQI
10th Sep 2025971 PMAQI
10th Sep 2025922 PMAQI
10th Sep 2025903 PMAQI
10th Sep 2025914 PMAQI
10th Sep 2025765 PMAQI
10th Sep 2025756 PMAQI
10th Sep 2025757 PMAQI
10th Sep 2025758 PMAQI
10th Sep 2025779 PMAQI
10th Sep 20258010 PMAQI
10th Sep 20257611 PMAQI
11th Sep 20257512 AMAQI
11th Sep 2025791 AMAQI
11th Sep 2025812 AMAQI
11th Sep 2025813 AMAQI
11th Sep 2025804 AMAQI

30°C28/34°C

11th Sep 2025805 AMAQI
11th Sep 2025736 AMAQI
11th Sep 2025747 AMAQI
11th Sep 2025768 AMAQI
11th Sep 2025819 AMAQI
11th Sep 20258210 AMAQI
11th Sep 20258211 AMAQI
11th Sep 20257712 PMAQI
11th Sep 2025721 PMAQI
11th Sep 2025802 PMAQI
11th Sep 2025783 PMAQI
11th Sep 2025814 PMAQI
11th Sep 2025825 PMAQI
11th Sep 2025816 PMAQI
11th Sep 2025827 PMAQI
11th Sep 2025808 PMAQI
11th Sep 2025829 PMAQI
11th Sep 20258710 PMAQI
11th Sep 20258311 PMAQI
12th Sep 20257812 AMAQI
12th Sep 2025791 AMAQI
12th Sep 2025812 AMAQI
12th Sep 2025773 AMAQI
12th Sep 2025824 AMAQI

30°C27/33°C

12th Sep 2025735 AMAQI
12th Sep 2025746 AMAQI
12th Sep 2025727 AMAQI
12th Sep 2025758 AMAQI
12th Sep 2025829 AMAQI
12th Sep 20257610 AMAQI
12th Sep 20258611 AMAQI
12th Sep 20257112 PMAQI
12th Sep 2025821 PMAQI
12th Sep 2025802 PMAQI
12th Sep 2025823 PMAQI
12th Sep 2025774 PMAQI
12th Sep 2025805 PMAQI
12th Sep 2025836 PMAQI
12th Sep 2025827 PMAQI
12th Sep 2025838 PMAQI
12th Sep 2025909 PMAQI
12th Sep 20258610 PMAQI
12th Sep 20258211 PMAQI
13th Sep 20258212 AMAQI
13th Sep 2025791 AMAQI
13th Sep 2025782 AMAQI
13th Sep 2025783 AMAQI
13th Sep 2025804 AMAQI

30°C27/33°C

13th Sep 2025825 AMAQI
13th Sep 2025926 AMAQI
13th Sep 2025857 AMAQI
13th Sep 2025998 AMAQI
13th Sep 2025879 AMAQI
13th Sep 20257810 AMAQI
13th Sep 20257611 AMAQI
13th Sep 20257712 PMAQI
13th Sep 2025851 PMAQI
13th Sep 2025912 PMAQI
13th Sep 2025763 PMAQI
13th Sep 2025784 PMAQI
13th Sep 2025815 PMAQI
13th Sep 2025916 PMAQI
13th Sep 2025827 PMAQI
13th Sep 2025838 PMAQI
13th Sep 2025829 PMAQI
13th Sep 20258110 PMAQI
13th Sep 20259411 PMAQI
14th Sep 20258312 AMAQI
14th Sep 2025851 AMAQI
14th Sep 2025822 AMAQI
14th Sep 2025823 AMAQI
14th Sep 2025824 AMAQI

30°C28/33°C

14th Sep 2025795 AMAQI
14th Sep 2025726 AMAQI
14th Sep 2025647 AMAQI
14th Sep 2025748 AMAQI
14th Sep 2025879 AMAQI
14th Sep 20257610 AMAQI
14th Sep 20257511 AMAQI
14th Sep 20257312 PMAQI
14th Sep 2025731 PMAQI
14th Sep 2025802 PMAQI
14th Sep 2025723 PMAQI
14th Sep 2025764 PMAQI
14th Sep 2025785 PMAQI
14th Sep 2025756 PMAQI
14th Sep 2025787 PMAQI
14th Sep 2025778 PMAQI
14th Sep 2025869 PMAQI
14th Sep 20258810 PMAQI
14th Sep 20258611 PMAQI
15th Sep 20257812 AMAQI
15th Sep 2025781 AMAQI
15th Sep 2025832 AMAQI
15th Sep 2025783 AMAQI
15th Sep 2025794 AMAQI

30°C27/33°C

15th Sep 2025675 AMAQI
15th Sep 2025676 AMAQI
15th Sep 2025587 AMAQI
15th Sep 2025868 AMAQI
15th Sep 2025689 AMAQI
15th Sep 20258410 AMAQI
15th Sep 20257911 AMAQI
15th Sep 20258512 PMAQI
15th Sep 2025701 PMAQI
15th Sep 2025662 PMAQI
15th Sep 2025733 PMAQI
15th Sep 2025824 PMAQI
15th Sep 2025805 PMAQI
15th Sep 2025796 PMAQI
15th Sep 2025727 PMAQI
15th Sep 2025828 PMAQI
15th Sep 2025849 PMAQI
15th Sep 20258710 PMAQI
15th Sep 20258111 PMAQI
16th Sep 20257712 AMAQI
16th Sep 2025751 AMAQI
16th Sep 2025752 AMAQI
16th Sep 2025763 AMAQI
16th Sep 2025744 AMAQI

30°C28/34°C

16th Sep 2025745 AMAQI
16th Sep 2025666 AMAQI
16th Sep 2025677 AMAQI
16th Sep 2025728 AMAQI
16th Sep 2025679 AMAQI
16th Sep 20257910 AMAQI
16th Sep 20256411 AMAQI
16th Sep 20256112 PMAQI
16th Sep 2025621 PMAQI
16th Sep 2025672 PMAQI
16th Sep 2025623 PMAQI
16th Sep 2025664 PMAQI
16th Sep 2025725 PMAQI
16th Sep 2025736 PMAQI
16th Sep 2025777 PMAQI
16th Sep 2025808 PMAQI
16th Sep 2025809 PMAQI
16th Sep 20257810 PMAQI
16th Sep 20258211 PMAQI
17th Sep 20257512 AMAQI
17th Sep 2025721 AMAQI
17th Sep 2025742 AMAQI
17th Sep 2025713 AMAQI
17th Sep 2025724 AMAQI

30°C28/33°C

17th Sep 2025685 AMAQI
17th Sep 2025836 AMAQI
17th Sep 2025607 AMAQI
17th Sep 2025668 AMAQI
17th Sep 2025689 AMAQI
17th Sep 20256310 AMAQI
17th Sep 20257811 AMAQI
17th Sep 20256612 PMAQI
17th Sep 2025611 PMAQI
17th Sep 2025642 PMAQI
17th Sep 2025683 PMAQI
17th Sep 2025564 PMAQI
17th Sep 2025665 PMAQI
17th Sep 2025706 PMAQI
17th Sep 2025727 PMAQI
17th Sep 2025748 PMAQI
17th Sep 2025739 PMAQI
17th Sep 20257410 PMAQI
17th Sep 20257211 PMAQI
18th Sep 20256912 AMAQI
18th Sep 2025701 AMAQI
18th Sep 2025702 AMAQI
18th Sep 2025693 AMAQI
18th Sep 2025694 AMAQI

30°C28/32°C

18th Sep 2025705 AMAQI
18th Sep 2025606 AMAQI
18th Sep 2025607 AMAQI
18th Sep 2025638 AMAQI
18th Sep 2025619 AMAQI
18th Sep 20256010 AMAQI
18th Sep 20256311 AMAQI
18th Sep 20256312 PMAQI
18th Sep 2025611 PMAQI
18th Sep 2025652 PMAQI
18th Sep 2025653 PMAQI
18th Sep 2025674 PMAQI
18th Sep 2025725 PMAQI
18th Sep 2025696 PMAQI
18th Sep 2025687 PMAQI
18th Sep 2025728 PMAQI
18th Sep 2025739 PMAQI
18th Sep 20257410 PMAQI
18th Sep 20257411 PMAQI
19th Sep 20257212 AMAQI
19th Sep 2025681 AMAQI
19th Sep 2025682 AMAQI
19th Sep 2025683 AMAQI
19th Sep 2025694 AMAQI

30°C27/33°C

19th Sep 2025655 AMAQI
19th Sep 2025536 AMAQI
19th Sep 2025537 AMAQI
19th Sep 2025598 AMAQI
19th Sep 2025769 AMAQI
19th Sep 20256710 AMAQI
19th Sep 20256811 AMAQI
19th Sep 20257012 PMAQI
19th Sep 2025881 PMAQI
19th Sep 2025822 PMAQI
19th Sep 2025783 PMAQI
19th Sep 2025744 PMAQI
19th Sep 2025705 PMAQI
19th Sep 2025716 PMAQI
19th Sep 2025787 PMAQI
19th Sep 2025778 PMAQI
19th Sep 2025749 PMAQI
19th Sep 20257910 PMAQI
19th Sep 20257411 PMAQI
20th Sep 20257212 AMAQI
20th Sep 2025671 AMAQI
20th Sep 2025682 AMAQI
20th Sep 2025683 AMAQI
20th Sep 2025674 AMAQI

29°C25/34°C

20th Sep 2025685 AMAQI
20th Sep 2025766 AMAQI
20th Sep 2025757 AMAQI
20th Sep 2025848 AMAQI
20th Sep 2025719 AMAQI
20th Sep 20259110 AMAQI
20th Sep 20258411 AMAQI
20th Sep 20258812 PMAQI
20th Sep 2025911 PMAQI
20th Sep 2025932 PMAQI
20th Sep 2025803 PMAQI
20th Sep 2025774 PMAQI
20th Sep 2025685 PMAQI
20th Sep 2025746 PMAQI
20th Sep 2025747 PMAQI
20th Sep 2025808 PMAQI
20th Sep 2025789 PMAQI
20th Sep 20257810 PMAQI
20th Sep 20257311 PMAQI
21st Sep 20257012 AMAQI
21st Sep 2025731 AMAQI
21st Sep 2025702 AMAQI
21st Sep 2025713 AMAQI
21st Sep 2025724 AMAQI

26°C25/28°C

21st Sep 2025735 AMAQI
21st Sep 2025756 AMAQI
21st Sep 2025837 AMAQI
21st Sep 2025868 AMAQI
21st Sep 2025879 AMAQI
21st Sep 20259310 AMAQI
21st Sep 20258411 AMAQI
21st Sep 20258812 PMAQI
21st Sep 2025791 PMAQI
21st Sep 2025782 PMAQI
21st Sep 2025783 PMAQI
21st Sep 2025734 PMAQI
21st Sep 2025785 PMAQI
21st Sep 2025726 PMAQI
21st Sep 2025787 PMAQI
21st Sep 2025838 PMAQI
21st Sep 2025889 PMAQI
21st Sep 20258310 PMAQI
21st Sep 20258911 PMAQI
22nd Sep 20258512 AMAQI
22nd Sep 2025711 AMAQI
22nd Sep 2025752 AMAQI
22nd Sep 2025743 AMAQI
22nd Sep 2025734 AMAQI

29°C25/33°C

22nd Sep 2025765 AMAQI
22nd Sep 2025656 AMAQI
22nd Sep 2025747 AMAQI
22nd Sep 2025828 AMAQI
22nd Sep 2025799 AMAQI
22nd Sep 20257210 AMAQI
22nd Sep 20257511 AMAQI
22nd Sep 20257512 PMAQI
22nd Sep 2025751 PMAQI
22nd Sep 2025682 PMAQI
22nd Sep 2025683 PMAQI
22nd Sep 2025644 PMAQI
22nd Sep 2025685 PMAQI
22nd Sep 2025736 PMAQI
22nd Sep 2025777 PMAQI
22nd Sep 2025798 PMAQI
22nd Sep 2025809 PMAQI
22nd Sep 20258210 PMAQI
22nd Sep 20258411 PMAQI
23rd Sep 20258012 AMAQI
23rd Sep 2025741 AMAQI
23rd Sep 2025722 AMAQI
23rd Sep 2025743 AMAQI
23rd Sep 2025744 AMAQI

30°C26/33°C

23rd Sep 2025725 AMAQI
23rd Sep 2025726 AMAQI
23rd Sep 2025877 AMAQI
23rd Sep 2025808 AMAQI
23rd Sep 2025869 AMAQI
23rd Sep 20257810 AMAQI
23rd Sep 20258211 AMAQI
23rd Sep 20258512 PMAQI
23rd Sep 2025751 PMAQI
23rd Sep 2025702 PMAQI
23rd Sep 2025683 PMAQI
23rd Sep 2025674 PMAQI
23rd Sep 2025685 PMAQI
23rd Sep 2025726 PMAQI
23rd Sep 2025757 PMAQI
23rd Sep 2025768 PMAQI
23rd Sep 2025809 PMAQI
23rd Sep 20258110 PMAQI
23rd Sep 20258011 PMAQI
24th Sep 20257812 AMAQI
24th Sep 2025741 AMAQI
24th Sep 2025742 AMAQI
24th Sep 2025743 AMAQI
24th Sep 2025744 AMAQI

30°C27/34°C

24th Sep 2025735 AMAQI
24th Sep 2025856 AMAQI
24th Sep 2025947 AMAQI
24th Sep 2025808 AMAQI
24th Sep 2025859 AMAQI
24th Sep 20258010 AMAQI
24th Sep 20257711 AMAQI
24th Sep 20258212 PMAQI
24th Sep 2025811 PMAQI
24th Sep 2025722 PMAQI
24th Sep 2025693 PMAQI
24th Sep 2025694 PMAQI
24th Sep 2025695 PMAQI
24th Sep 2025746 PMAQI
24th Sep 2025807 PMAQI
24th Sep 2025828 PMAQI
24th Sep 2025809 PMAQI
24th Sep 20257910 PMAQI
24th Sep 20257611 PMAQI
25th Sep 20258012 AMAQI
25th Sep 2025761 AMAQI
25th Sep 2025762 AMAQI
25th Sep 2025743 AMAQI
25th Sep 2025774 AMAQI

31°C27/34°C

25th Sep 2025745 AMAQI
25th Sep 2025746 AMAQI
25th Sep 2025847 AMAQI
25th Sep 2025868 AMAQI
25th Sep 20251029 AMAQI
25th Sep 20257910 AMAQI
25th Sep 20258811 AMAQI
25th Sep 20258612 PMAQI
25th Sep 2025801 PMAQI
25th Sep 2025762 PMAQI
25th Sep 2025783 PMAQI
25th Sep 2025804 PMAQI
25th Sep 2025815 PMAQI
25th Sep 2025866 PMAQI
25th Sep 20251127 PMAQI
25th Sep 20251118 PMAQI
25th Sep 20251129 PMAQI
25th Sep 202510810 PMAQI
25th Sep 202510611 PMAQI
26th Sep 20259712 AMAQI
26th Sep 2025871 AMAQI
26th Sep 2025802 AMAQI
26th Sep 2025763 AMAQI
26th Sep 2025714 AMAQI

31°C28/35°C

26th Sep 2025655 AMAQI
26th Sep 2025746 AMAQI
26th Sep 2025807 AMAQI
26th Sep 2025868 AMAQI
26th Sep 2025859 AMAQI
26th Sep 20258810 AMAQI
26th Sep 20259011 AMAQI
26th Sep 20258612 PMAQI
26th Sep 2025791 PMAQI
26th Sep 2025712 PMAQI
26th Sep 2025663 PMAQI
26th Sep 2025614 PMAQI
26th Sep 2025615 PMAQI
26th Sep 2025616 PMAQI
26th Sep 2025697 PMAQI
26th Sep 2025848 PMAQI
26th Sep 2025899 PMAQI
26th Sep 20258810 PMAQI
26th Sep 20258211 PMAQI
27th Sep 20258012 AMAQI
27th Sep 2025771 AMAQI
27th Sep 2025752 AMAQI
27th Sep 2025733 AMAQI
27th Sep 2025704 AMAQI

30°C28/34°C

27th Sep 2025705 AMAQI
27th Sep 2025756 AMAQI
27th Sep 2025847 AMAQI
27th Sep 2025908 AMAQI
27th Sep 2025909 AMAQI
27th Sep 20258410 AMAQI
27th Sep 20257711 AMAQI
27th Sep 20257512 PMAQI
27th Sep 2025731 PMAQI
27th Sep 2025712 PMAQI
27th Sep 2025723 PMAQI
27th Sep 2025714 PMAQI
27th Sep 2025725 PMAQI
27th Sep 2025786 PMAQI
27th Sep 2025847 PMAQI
27th Sep 2025878 PMAQI
27th Sep 2025849 PMAQI
27th Sep 20258310 PMAQI
27th Sep 20258011 PMAQI
28th Sep 20257312 AMAQI
28th Sep 2025711 AMAQI
28th Sep 2025712 AMAQI
28th Sep 2025723 AMAQI
28th Sep 2025734 AMAQI

30°C27/35°C

28th Sep 2025735 AMAQI
28th Sep 2025806 AMAQI
28th Sep 2025867 AMAQI
28th Sep 2025868 AMAQI
28th Sep 2025819 AMAQI
28th Sep 20257610 AMAQI
28th Sep 20257611 AMAQI
28th Sep 20257612 PMAQI
28th Sep 2025741 PMAQI
28th Sep 2025752 PMAQI
28th Sep 2025763 PMAQI
28th Sep 2025764 PMAQI
28th Sep 2025775 PMAQI
28th Sep 2025876 PMAQI
28th Sep 2025957 PMAQI
28th Sep 2025958 PMAQI
28th Sep 2025939 PMAQI
28th Sep 20259010 PMAQI
28th Sep 20257911 PMAQI
29th Sep 20257912 AMAQI
29th Sep 2025811 AMAQI
29th Sep 2025742 AMAQI
29th Sep 2025683 AMAQI
29th Sep 2025634 AMAQI

30°C27/35°C

29th Sep 2025615 AMAQI
29th Sep 2025606 AMAQI
29th Sep 2025757 AMAQI
29th Sep 2025908 AMAQI
29th Sep 2025879 AMAQI
29th Sep 20259010 AMAQI
29th Sep 20258611 AMAQI
29th Sep 20257712 PMAQI
29th Sep 2025771 PMAQI
29th Sep 2025792 PMAQI
29th Sep 2025813 PMAQI
29th Sep 2025784 PMAQI
29th Sep 2025715 PMAQI
29th Sep 2025926 PMAQI
29th Sep 2025917 PMAQI
29th Sep 2025948 PMAQI
29th Sep 2025939 PMAQI
29th Sep 202510510 PMAQI
29th Sep 202511011 PMAQI
30th Sep 202511112 AMAQI
30th Sep 20251071 AMAQI
30th Sep 20251162 AMAQI
30th Sep 2025943 AMAQI
30th Sep 2025734 AMAQI

31°C28/36°C

30th Sep 2025645 AMAQI
30th Sep 2025656 AMAQI
30th Sep 2025647 AMAQI
30th Sep 2025728 AMAQI
30th Sep 2025769 AMAQI
30th Sep 20257810 AMAQI
30th Sep 20257511 AMAQI
30th Sep 20257612 PMAQI
30th Sep 2025841 PMAQI
30th Sep 2025792 PMAQI
30th Sep 2025753 PMAQI
30th Sep 2025744 PMAQI
30th Sep 2025705 PMAQI
30th Sep 2025776 PMAQI
30th Sep 2025787 PMAQI
30th Sep 2025898 PMAQI
30th Sep 2025949 PMAQI
30th Sep 202512410 PMAQI
30th Sep 202512611 PMAQI
1st Oct 20259812 AMAQI
1st Oct 2025831 AMAQI
1st Oct 2025812 AMAQI
1st Oct 2025863 AMAQI
1st Oct 2025914 AMAQI

30°C27/33°C

1st Oct 2025875 AMAQI
1st Oct 2025896 AMAQI
1st Oct 2025967 AMAQI
1st Oct 2025958 AMAQI
1st Oct 20251049 AMAQI
1st Oct 202510010 AMAQI
1st Oct 20259811 AMAQI
1st Oct 20257712 PMAQI
1st Oct 2025711 PMAQI
1st Oct 2025692 PMAQI
1st Oct 2025673 PMAQI
1st Oct 2025654 PMAQI
1st Oct 2025625 PMAQI
1st Oct 2025746 PMAQI
1st Oct 2025817 PMAQI
1st Oct 2025838 PMAQI
1st Oct 2025909 PMAQI
1st Oct 20259410 PMAQI
1st Oct 20259111 PMAQI
2nd Oct 20258912 AMAQI
2nd Oct 2025851 AMAQI
2nd Oct 2025762 AMAQI
2nd Oct 2025743 AMAQI
2nd Oct 2025714 AMAQI

30°C27/32°C

2nd Oct 2025705 AMAQI
2nd Oct 2025806 AMAQI
2nd Oct 2025847 AMAQI
2nd Oct 2025978 AMAQI
2nd Oct 2025969 AMAQI
2nd Oct 20259410 AMAQI
2nd Oct 20259611 AMAQI
2nd Oct 20258712 PMAQI
2nd Oct 2025841 PMAQI
2nd Oct 2025822 PMAQI
2nd Oct 2025743 PMAQI
2nd Oct 2025764 PMAQI
2nd Oct 2025775 PMAQI
2nd Oct 2025816 PMAQI
2nd Oct 2025857 PMAQI
2nd Oct 2025978 PMAQI
2nd Oct 20251009 PMAQI
2nd Oct 202510310 PMAQI
2nd Oct 202510211 PMAQI
3rd Oct 202510912 AMAQI
3rd Oct 20251101 AMAQI
3rd Oct 20251072 AMAQI
3rd Oct 2025963 AMAQI
3rd Oct 2025914 AMAQI

29°C26/34°C

3rd Oct 2025865 AMAQI
3rd Oct 2025906 AMAQI
3rd Oct 2025877 AMAQI
3rd Oct 2025958 AMAQI
3rd Oct 2025999 AMAQI
3rd Oct 20259710 AMAQI
3rd Oct 202510011 AMAQI
3rd Oct 20259312 PMAQI
3rd Oct 2025951 PMAQI
3rd Oct 2025902 PMAQI
3rd Oct 2025863 PMAQI
3rd Oct 2025874 PMAQI
3rd Oct 2025725 PMAQI
3rd Oct 2025966 PMAQI
3rd Oct 20251047 PMAQI
3rd Oct 20251088 PMAQI
3rd Oct 20251119 PMAQI
3rd Oct 202510210 PMAQI
3rd Oct 202510311 PMAQI
4th Oct 20259212 AMAQI
4th Oct 2025901 AMAQI
4th Oct 2025822 AMAQI
4th Oct 2025793 AMAQI
4th Oct 2025744 AMAQI

29°C27/34°C

4th Oct 2025805 AMAQI
4th Oct 2025826 AMAQI
4th Oct 2025947 AMAQI
4th Oct 2025988 AMAQI
4th Oct 20251019 AMAQI
4th Oct 20259610 AMAQI
4th Oct 20259311 AMAQI
4th Oct 20258612 PMAQI
4th Oct 2025871 PMAQI
4th Oct 2025882 PMAQI
4th Oct 2025803 PMAQI
4th Oct 2025804 PMAQI
4th Oct 2025815 PMAQI
4th Oct 2025816 PMAQI
4th Oct 2025857 PMAQI
4th Oct 2025918 PMAQI
4th Oct 2025909 PMAQI
4th Oct 202510010 PMAQI
4th Oct 20259511 PMAQI
5th Oct 20259112 AMAQI
5th Oct 2025911 AMAQI
5th Oct 2025852 AMAQI
5th Oct 2025793 AMAQI
5th Oct 2025774 AMAQI

30°C27/34°C

5th Oct 2025715 AMAQI
5 AM
5th Oct 2025816 AMAQI
5th Oct 2025837 AMAQI
5th Oct 2025928 AMAQI
5th Oct 2025899 AMAQI
5th Oct 20259710 AMAQI
5th Oct 202510211 AMAQI
11 AM
5th Oct 20259712 PMAQI
5th Oct 2025921 PMAQI
5th Oct 2025872 PMAQI
5th Oct 2025853 PMAQI
5th Oct 2025764 PMAQI
5th Oct 2025785 PMAQI
5th Oct 2025876 PMAQI
6 PM
5th Oct 2025897 PMAQI
5th Oct 20251018 PMAQI
5th Oct 20251089 PMAQI
5th Oct 202510310 PMAQI
5th Oct 202510611 PMAQI
11 PM
4 AM

--°C/°C

Day time
Avg. Highest Time
8 AM - 11 AM

82AQI

4 hours / Day
120 hours / Month
Avg. Lowest Time
5 AM - 7 AM

74AQI

3 hours / Day
90 hours / Month
In the last 30 days, during the daytime, the highest AQI was between 8 AM to 11 AM (Avg. 82), while the lowest AQI was between 5 AM to 7 AM (Avg. 74).
Night time
Avg. Highest Time
8 PM - 11 PM

86AQI

4 hours / Day
120 hours / Month
Avg. Lowest Time
1 AM - 4 AM

76AQI

4 hours / Day
120 hours / Month
In the last 30 days, during the daytime, the highest AQI was between 8 PM to 11 PM (Avg. 86), while the lowest AQI was between 1 AM to 4 AM (Avg. 76).

2025 Days Vs Air Quality

Velachery Res. Area, Chennai, Tamil Nadu, India

2025

78%

215

22%

60

0.7%

2

Total number of days with different AQI categories in last 278 days in 2025 (87 days remaining)

Good
0 Days
Moderate
215 Days
Poor
60 Days
Unhealthy
2 Days
Severe
0 Days
Hazardous
0 Days

Under WHO’s Safe Air Quality Limits: 0%

Health Risk Level:

Extreme

In 2025, 0% of 278 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

Velachery Res. Area, Chennai, Tamil Nadu, 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
110AQI
2nd January 2025
145AQI
3rd January 2025
140AQI
4th January 2025
149AQI
5th January 2025
149AQI
6th January 2025
157AQI
7th January 2025
143AQI
8th January 2025
149AQI
9th January 2025
146AQI
10th January 2025
146AQI
11th January 2025
115AQI
12th January 2025
124AQI
13th January 2025
116AQI
14th January 2025
90AQI
15th January 2025
90AQI
16th January 2025
125AQI
17th January 2025
138AQI
18th January 2025
132AQI
19th January 2025
110AQI
20th January 2025
137AQI
21st January 2025
134AQI
22nd January 2025
140AQI
23rd January 2025
116AQI
24th January 2025
106AQI
25th January 2025
108AQI
26th January 2025
108AQI
27th January 2025
116AQI
28th January 2025
136AQI
29th January 2025
135AQI
30th January 2025
134AQI
31st January 2025
106AQI
1st February 2025
100AQI
2nd February 2025
92AQI
3rd February 2025
90AQI
4th February 2025
108AQI
5th February 2025
128AQI
6th February 2025
129AQI
7th February 2025
139AQI
8th February 2025
132AQI
9th February 2025
137AQI
10th February 2025
151AQI
11th February 2025
119AQI
12th February 2025
122AQI
13th February 2025
104AQI
14th February 2025
101AQI
15th February 2025
96AQI
16th February 2025
103AQI
17th February 2025
124AQI
18th February 2025
127AQI
19th February 2025
124AQI
20th February 2025
112AQI
21st February 2025
108AQI
22nd February 2025
111AQI
23rd February 2025
102AQI
24th February 2025
104AQI
25th February 2025
102AQI
26th February 2025
121AQI
27th February 2025
104AQI
28th February 2025
100AQI
1st March 2025
85AQI
2nd March 2025
81AQI
3rd March 2025
82AQI
4th March 2025
81AQI
5th March 2025
82AQI
6th March 2025
98AQI
7th March 2025
119AQI
8th March 2025
108AQI
9th March 2025
91AQI
10th March 2025
90AQI
11th March 2025
98AQI
12th March 2025
93AQI
13th March 2025
85AQI
14th March 2025
94AQI
15th March 2025
72AQI
16th March 2025
79AQI
17th March 2025
107AQI
18th March 2025
96AQI
19th March 2025
89AQI
20th March 2025
90AQI
21st March 2025
97AQI
22nd March 2025
89AQI
23rd March 2025
79AQI
24th March 2025
85AQI
25th March 2025
86AQI
26th March 2025
95AQI
27th March 2025
111AQI
28th March 2025
95AQI
29th March 2025
110AQI
30th March 2025
88AQI
31st March 2025
94AQI
1st April 2025
102AQI
2nd April 2025
87AQI
3rd April 2025
74AQI
4th April 2025
78AQI
5th April 2025
68AQI
6th April 2025
67AQI
7th April 2025
67AQI
8th April 2025
67AQI
9th April 2025
64AQI
10th April 2025
80AQI
11th April 2025
87AQI
12th April 2025
93AQI
13th April 2025
86AQI
14th April 2025
77AQI
15th April 2025
70AQI
16th April 2025
74AQI
17th April 2025
74AQI
18th April 2025
71AQI
19th April 2025
80AQI
20th April 2025
78AQI
21st April 2025
77AQI
22nd April 2025
79AQI
23rd April 2025
77AQI
24th April 2025
72AQI
25th April 2025
75AQI
26th April 2025
74AQI
27th April 2025
70AQI
28th April 2025
62AQI
29th April 2025
62AQI
30th April 2025
66AQI
1st May 2025
69AQI
2nd May 2025
73AQI
3rd May 2025
85AQI
4th May 2025
79AQI
5th May 2025
83AQI
6th May 2025
79AQI
7th May 2025
82AQI
8th May 2025
90AQI
9th May 2025
93AQI
10th May 2025
95AQI
11th May 2025
94AQI
12th May 2025
92AQI
13th May 2025
101AQI
14th May 2025
97AQI
15th May 2025
101AQI
16th May 2025
98AQI
17th May 2025
91AQI
18th May 2025
84AQI
19th May 2025
82AQI
20th May 2025
84AQI
21st May 2025
71AQI
22nd May 2025
81AQI
23rd May 2025
83AQI
24th May 2025
74AQI
25th May 2025
70AQI
26th May 2025
64AQI
27th May 2025
71AQI
28th May 2025
89AQI
29th May 2025
74AQI
30th May 2025
81AQI
31st May 2025
85AQI
1st June 2025
81AQI
2nd June 2025
88AQI
3rd June 2025
84AQI
4th June 2025
95AQI
5th June 2025
97AQI
6th June 2025
104AQI
7th June 2025
101AQI
8th June 2025
90AQI
9th June 2025
92AQI
10th June 2025
92AQI
11th June 2025
94AQI
12th June 2025
91AQI
13th June 2025
85AQI
14th June 2025
81AQI
15th June 2025
77AQI
16th June 2025
76AQI
17th June 2025
78AQI
18th June 2025
80AQI
19th June 2025
79AQI
20th June 2025
77AQI
21st June 2025
72AQI
22nd June 2025
73AQI
23rd June 2025
70AQI
24th June 2025
71AQI
25th June 2025
69AQI
26th June 2025
65AQI
27th June 2025
65AQI
28th June 2025
64AQI
29th June 2025
64AQI
30th June 2025
64AQI
1st July 2025
67AQI
2nd July 2025
70AQI
3rd July 2025
64AQI
4th July 2025
64AQI
5th July 2025
66AQI
6th July 2025
62AQI
7th July 2025
64AQI
8th July 2025
68AQI
9th July 2025
70AQI
10th July 2025
71AQI
11th July 2025
73AQI
12th July 2025
73AQI
13th July 2025
74AQI
14th July 2025
72AQI
15th July 2025
75AQI
16th July 2025
72AQI
17th July 2025
72AQI
18th July 2025
72AQI
19th July 2025
74AQI
20th July 2025
73AQI
21st July 2025
75AQI
22nd July 2025
74AQI
23rd July 2025
72AQI
24th July 2025
72AQI
25th July 2025
74AQI
26th July 2025
72AQI
27th July 2025
71AQI
28th July 2025
69AQI
29th July 2025
68AQI
30th July 2025
67AQI
31st July 2025
68AQI
1st August 2025
69AQI
2nd August 2025
74AQI
3rd August 2025
73AQI
4th August 2025
70AQI
5th August 2025
68AQI
6th August 2025
70AQI
7th August 2025
75AQI
8th August 2025
75AQI
9th August 2025
78AQI
10th August 2025
75AQI
11th August 2025
70AQI
12th August 2025
68AQI
13th August 2025
63AQI
14th August 2025
66AQI
15th August 2025
62AQI
16th August 2025
62AQI
17th August 2025
57AQI
18th August 2025
59AQI
19th August 2025
62AQI
20th August 2025
63AQI
21st August 2025
67AQI
22nd August 2025
68AQI
23rd August 2025
65AQI
24th August 2025
66AQI
25th August 2025
66AQI
26th August 2025
67AQI
27th August 2025
68AQI
28th August 2025
67AQI
29th August 2025
70AQI
30th August 2025
68AQI
31st August 2025
67AQI
1st September 2025
70AQI
2nd September 2025
68AQI
3rd September 2025
70AQI
4th September 2025
80AQI
5th September 2025
67AQI
6th September 2025
73AQI
7th September 2025
72AQI
8th September 2025
73AQI
9th September 2025
79AQI
10th September 2025
79AQI
11th September 2025
80AQI
12th September 2025
80AQI
13th September 2025
83AQI
14th September 2025
79AQI
15th September 2025
77AQI
16th September 2025
73AQI
17th September 2025
70AQI
18th September 2025
68AQI
19th September 2025
71AQI
20th September 2025
76AQI
21st September 2025
79AQI
22nd September 2025
75AQI
23rd September 2025
76AQI
24th September 2025
78AQI
25th September 2025
88AQI
26th September 2025
82AQI
27th September 2025
78AQI
28th September 2025
80AQI
29th September 2025
81AQI
30th September 2025
93AQI
1st October 2025
88AQI
2nd October 2025
86AQI
3rd October 2025
98AQI
4th October 2025
88AQI
5th October 2025
6th October 2025
7th October 2025
8th October 2025
9th October 2025
10th October 2025
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

127AQI

114AQI

92AQI

75AQI

84AQI

81AQI

70AQI

68AQI

77AQI

90AQI

No. of days

Jan.Feb.Mar.Apr.MayJun.Jul.Aug.Sep.Oct.Nov.Dec.Total Days

202587AQI

2
28
1
5
22
1
26
5
29
1
29
2
28
2
31
31
30
4
215
60
2

Highest AQI recorded in

January

127AQI

Lowest AQI recorded in

August

68AQI

202487AQI

8
21
2
7
22
10
21
1
29
14
16
1
25
5
31
8
20
3
2
9
19
23
6
2
13
17
25
6
25
216
121
4

Highest AQI recorded in

January

115AQI

Lowest AQI recorded in

May

54AQI

202391AQI

15
16
23
5
2
23
4
1
1
2
21
4
1
25
4
27
3
27
21
8
21
2
18
4
20
8
13
12
4
4
254
70
5
1
1

Highest AQI recorded in

December

114AQI

Lowest AQI recorded in

July

78AQI

202284AQI

31
27
1
30
13
4
5
16
12
18
27
4
9
3
20
5
1
12
7
4
1
4
19
6
1
16
10
2
5
221
74
7
1

Highest AQI recorded in

May

113AQI

Lowest AQI recorded in

March

56AQI

202173AQI

2
14
13
2
2
19
7
4
19
6
1
1
26
4
11
20
18
10
2
31
1
30
30
31
2
26
2
3
17
3
8
51
259
41
13
1

Highest AQI recorded in

January

100AQI

Lowest AQI recorded in

April

39AQI

202073AQI

12
1
26
3
1
20
11
10
20
10
20
1
30
1
30
1
28
2
1
21
8
3
14
13
1
71
189
27
1

Highest AQI recorded in

December

99AQI

Lowest AQI recorded in

April

38AQI

Most & Least Polluted Years Over the Last 6 Years

Most Polluted Year Recorded
2023(Avg.)
91AQI
Least Polluted Year Recorded
2020(Avg.)
73AQI

Velachery Res. Area's annual 2025 AQI (87) shows an average percentage change of 8.1% (worsened AQI) compared to previous years: 2020 (73), 2021 (73), 2022 (84), 2023 (91), 2024 (87).