Hanoi Environmental Protection Department, Hanoi, Ha Noi, Vietnam 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
Hanoi Environmental Protection Department, Hanoi, Ha Noi, Vietnam
2021
2024
2025
AQI
.
Days
AQI Trends: Highest and Lowest
Highest AQI recorded on
9th Aug 2021
107AQILowest AQI recorded on
14th Aug 2024
20AQISame Day Analysis (4th August ):
On this day, AQI across the 3 years varied significantly: 2025 ranks 2nd highest AQI at 57 of Moderate air quality, showing improvement over 2021 on the same day.
Download 2024 Annual Data
World Air Quality Report
Day & Night AQI Trend: 4th Aug - 5th Aug 2025
Hanoi Environmental Protection Department, Hanoi, Ha Noi, Vietnam
AQI
Day
Night
.
5 AM4th Aug 2025
6 PM
4 AM5th Aug 2025
Day time
Avg. Highest Time
1PM4th Aug
63AQI
Avg. Lowest Time
5PM4th Aug
54AQI
Night time
Avg. Highest Time
8PM4th Aug
58AQI
Avg. Lowest Time
3AM5th Aug
56AQI
In the last 24 hours,
Hanoi Environmental Protection Department's AQI reached its highest point of 63 at 1 PM during the Day, while the lowest point, 54, was recorded at 5 PM during the Day between 4th Aug and 5th Aug 2025.
Day & Night AQI Trend : Jul - Aug 2025
Hanoi Environmental Protection Department, Hanoi, Ha Noi, Vietnam
JulAug
06th - 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 - 04th04th - 05th05th
Day
Night
6th Jul 2025605 AMAQI
6th Jul 2025606 AMAQI
6th Jul 2025577 AMAQI
6th Jul 2025538 AMAQI
6th Jul 2025629 AMAQI
6th Jul 20255810 AMAQI
6th Jul 20255411 AMAQI
6th Jul 20255412 PMAQI
6th Jul 2025651 PMAQI
6th Jul 2025692 PMAQI
6th Jul 2025583 PMAQI
6th Jul 2025654 PMAQI
6th Jul 2025575 PMAQI
6th Jul 2025536 PMAQI
6th Jul 2025597 PMAQI
6th Jul 2025618 PMAQI
6th Jul 2025639 PMAQI
6th Jul 20256010 PMAQI
6th Jul 20255611 PMAQI
7th Jul 20255612 AMAQI
7th Jul 2025611 AMAQI
7th Jul 2025602 AMAQI
7th Jul 2025603 AMAQI
7th Jul 2025604 AMAQI
29°C27/33°C
7th Jul 2025605 AMAQI
7th Jul 2025606 AMAQI
7th Jul 2025647 AMAQI
7th Jul 2025708 AMAQI
7th Jul 2025829 AMAQI
7th Jul 20258710 AMAQI
7th Jul 20258011 AMAQI
7th Jul 20257512 PMAQI
7th Jul 2025661 PMAQI
7th Jul 2025592 PMAQI
7th Jul 2025703 PMAQI
7th Jul 2025724 PMAQI
7th Jul 2025665 PMAQI
7th Jul 2025616 PMAQI
7th Jul 2025657 PMAQI
7th Jul 2025648 PMAQI
7th Jul 2025679 PMAQI
7th Jul 20256610 PMAQI
7th Jul 20256811 PMAQI
8th Jul 20256312 AMAQI
8th Jul 2025601 AMAQI
8th Jul 2025602 AMAQI
8th Jul 2025643 AMAQI
8th Jul 2025634 AMAQI
30°C26/35°C
8th Jul 2025635 AMAQI
8th Jul 2025636 AMAQI
8th Jul 2025647 AMAQI
8th Jul 2025658 AMAQI
8th Jul 2025689 AMAQI
8th Jul 20256210 AMAQI
8th Jul 20256311 AMAQI
8th Jul 20255812 PMAQI
8th Jul 2025531 PMAQI
8th Jul 2025542 PMAQI
8th Jul 2025553 PMAQI
8th Jul 2025564 PMAQI
8th Jul 2025565 PMAQI
8th Jul 2025546 PMAQI
8th Jul 2025577 PMAQI
8th Jul 2025588 PMAQI
8th Jul 2025589 PMAQI
8th Jul 20255910 PMAQI
8th Jul 20256611 PMAQI
9th Jul 20256912 AMAQI
9th Jul 2025611 AMAQI
9th Jul 2025632 AMAQI
9th Jul 2025613 AMAQI
9th Jul 2025604 AMAQI
32°C27/37°C
9th Jul 2025615 AMAQI
9th Jul 2025616 AMAQI
9th Jul 2025747 AMAQI
9th Jul 2025778 AMAQI
9th Jul 2025749 AMAQI
9th Jul 20257610 AMAQI
9th Jul 20257811 AMAQI
9th Jul 20256512 PMAQI
9th Jul 2025601 PMAQI
9th Jul 2025592 PMAQI
9th Jul 2025623 PMAQI
9th Jul 2025634 PMAQI
9th Jul 2025645 PMAQI
9th Jul 2025616 PMAQI
9th Jul 2025657 PMAQI
9th Jul 2025688 PMAQI
9th Jul 2025789 PMAQI
9th Jul 20257610 PMAQI
9th Jul 20257411 PMAQI
10th Jul 20257212 AMAQI
10th Jul 2025631 AMAQI
10th Jul 2025642 AMAQI
10th Jul 2025643 AMAQI
10th Jul 2025654 AMAQI
32°C28/37°C
10th Jul 2025665 AMAQI
10th Jul 2025646 AMAQI
10th Jul 2025487 AMAQI
10th Jul 2025468 AMAQI
10th Jul 2025529 AMAQI
10th Jul 20255010 AMAQI
10th Jul 20255611 AMAQI
10th Jul 20255512 PMAQI
10th Jul 2025591 PMAQI
10th Jul 2025552 PMAQI
10th Jul 2025503 PMAQI
10th Jul 2025494 PMAQI
10th Jul 2025535 PMAQI
10th Jul 2025526 PMAQI
10th Jul 2025557 PMAQI
10th Jul 2025588 PMAQI
10th Jul 2025629 PMAQI
10th Jul 20255910 PMAQI
10th Jul 20256111 PMAQI
11th Jul 20256312 AMAQI
11th Jul 2025621 AMAQI
11th Jul 2025622 AMAQI
11th Jul 2025603 AMAQI
11th Jul 2025604 AMAQI
30°C26/35°C
11th Jul 2025605 AMAQI
11th Jul 2025606 AMAQI
11th Jul 2025417 AMAQI
11th Jul 2025328 AMAQI
11th Jul 2025369 AMAQI
11th Jul 20254310 AMAQI
11th Jul 20255011 AMAQI
11th Jul 20255212 PMAQI
11th Jul 2025541 PMAQI
11th Jul 2025512 PMAQI
11th Jul 2025543 PMAQI
11th Jul 2025514 PMAQI
11th Jul 2025585 PMAQI
11th Jul 2025556 PMAQI
11th Jul 2025557 PMAQI
11th Jul 2025568 PMAQI
11th Jul 2025629 PMAQI
11th Jul 20255810 PMAQI
11th Jul 20255611 PMAQI
12th Jul 20255612 AMAQI
12th Jul 2025591 AMAQI
12th Jul 2025592 AMAQI
12th Jul 2025573 AMAQI
12th Jul 2025574 AMAQI
29°C26/33°C
12th Jul 2025565 AMAQI
12th Jul 2025566 AMAQI
12th Jul 2025547 AMAQI
12th Jul 2025538 AMAQI
12th Jul 2025559 AMAQI
12th Jul 20255610 AMAQI
12th Jul 20255811 AMAQI
12th Jul 20255612 PMAQI
12th Jul 2025601 PMAQI
12th Jul 2025552 PMAQI
12th Jul 2025553 PMAQI
12th Jul 2025504 PMAQI
12th Jul 2025555 PMAQI
12th Jul 2025536 PMAQI
12th Jul 2025557 PMAQI
12th Jul 2025548 PMAQI
12th Jul 2025549 PMAQI
12th Jul 20255410 PMAQI
12th Jul 20255411 PMAQI
13th Jul 20255312 AMAQI
13th Jul 2025581 AMAQI
13th Jul 2025572 AMAQI
13th Jul 2025573 AMAQI
13th Jul 2025574 AMAQI
29°C26/34°C
13th Jul 2025575 AMAQI
13th Jul 2025576 AMAQI
13th Jul 2025577 AMAQI
13th Jul 2025618 AMAQI
13th Jul 2025579 AMAQI
13th Jul 20255510 AMAQI
13th Jul 20255111 AMAQI
13th Jul 20254912 PMAQI
13th Jul 2025531 PMAQI
13th Jul 2025532 PMAQI
13th Jul 2025573 PMAQI
13th Jul 2025584 PMAQI
13th Jul 2025585 PMAQI
13th Jul 2025556 PMAQI
13th Jul 2025567 PMAQI
13th Jul 2025578 PMAQI
13th Jul 2025579 PMAQI
13th Jul 20256110 PMAQI
13th Jul 20256311 PMAQI
14th Jul 20256112 AMAQI
14th Jul 2025571 AMAQI
14th Jul 2025572 AMAQI
14th Jul 2025583 AMAQI
14th Jul 2025574 AMAQI
29°C26/34°C
14th Jul 2025575 AMAQI
14th Jul 2025586 AMAQI
14th Jul 2025807 AMAQI
14th Jul 20251148 AMAQI
14th Jul 20251009 AMAQI
14th Jul 202510210 AMAQI
14th Jul 20258611 AMAQI
14th Jul 20258412 PMAQI
14th Jul 2025871 PMAQI
14th Jul 2025802 PMAQI
14th Jul 2025773 PMAQI
14th Jul 2025724 PMAQI
14th Jul 2025725 PMAQI
14th Jul 2025666 PMAQI
14th Jul 2025707 PMAQI
14th Jul 2025708 PMAQI
14th Jul 2025699 PMAQI
14th Jul 20256510 PMAQI
14th Jul 20256211 PMAQI
15th Jul 20255912 AMAQI
15th Jul 2025601 AMAQI
15th Jul 2025622 AMAQI
15th Jul 2025663 AMAQI
15th Jul 2025664 AMAQI
31°C27/35°C
15th Jul 2025675 AMAQI
15th Jul 2025676 AMAQI
15th Jul 2025757 AMAQI
15th Jul 2025948 AMAQI
15th Jul 20251019 AMAQI
15th Jul 20259910 AMAQI
15th Jul 20259211 AMAQI
15th Jul 202510812 PMAQI
15th Jul 20251001 PMAQI
15th Jul 2025942 PMAQI
15th Jul 2025923 PMAQI
15th Jul 20251064 PMAQI
15th Jul 2025985 PMAQI
15th Jul 20251016 PMAQI
15th Jul 2025847 PMAQI
15th Jul 2025828 PMAQI
15th Jul 2025799 PMAQI
15th Jul 20258110 PMAQI
15th Jul 20257611 PMAQI
16th Jul 20257012 AMAQI
16th Jul 2025641 AMAQI
16th Jul 2025652 AMAQI
16th Jul 2025703 AMAQI
16th Jul 2025704 AMAQI
30°C28/34°C
16th Jul 2025705 AMAQI
16th Jul 2025716 AMAQI
16th Jul 2025667 AMAQI
16th Jul 2025628 AMAQI
16th Jul 2025609 AMAQI
16th Jul 20256810 AMAQI
16th Jul 20258211 AMAQI
16th Jul 20255912 PMAQI
16th Jul 2025541 PMAQI
16th Jul 2025632 PMAQI
16th Jul 2025673 PMAQI
16th Jul 2025634 PMAQI
16th Jul 2025545 PMAQI
16th Jul 2025556 PMAQI
16th Jul 2025647 PMAQI
16th Jul 2025678 PMAQI
16th Jul 2025709 PMAQI
16th Jul 20256910 PMAQI
16th Jul 20256511 PMAQI
17th Jul 20256312 AMAQI
17th Jul 2025661 AMAQI
17th Jul 2025662 AMAQI
17th Jul 2025653 AMAQI
17th Jul 2025654 AMAQI
31°C27/35°C
17th Jul 2025665 AMAQI
17th Jul 2025666 AMAQI
17th Jul 2025537 AMAQI
17th Jul 2025558 AMAQI
17th Jul 2025739 AMAQI
17th Jul 20256410 AMAQI
17th Jul 20256011 AMAQI
17th Jul 20256312 PMAQI
17th Jul 2025621 PMAQI
17th Jul 2025562 PMAQI
17th Jul 2025563 PMAQI
17th Jul 2025554 PMAQI
17th Jul 2025535 PMAQI
17th Jul 2025546 PMAQI
17th Jul 2025607 PMAQI
17th Jul 2025678 PMAQI
17th Jul 2025669 PMAQI
17th Jul 20256910 PMAQI
17th Jul 20257011 PMAQI
18th Jul 20257212 AMAQI
18th Jul 2025641 AMAQI
18th Jul 2025622 AMAQI
18th Jul 2025623 AMAQI
18th Jul 2025634 AMAQI
31°C27/37°C
18th Jul 2025635 AMAQI
18th Jul 2025636 AMAQI
18th Jul 2025647 AMAQI
18th Jul 2025648 AMAQI
18th Jul 2025729 AMAQI
18th Jul 20257210 AMAQI
18th Jul 20256711 AMAQI
18th Jul 20256012 PMAQI
18th Jul 2025581 PMAQI
18th Jul 2025622 PMAQI
18th Jul 2025563 PMAQI
18th Jul 2025564 PMAQI
18th Jul 2025525 PMAQI
18th Jul 2025546 PMAQI
18th Jul 2025567 PMAQI
18th Jul 2025568 PMAQI
18th Jul 2025559 PMAQI
18th Jul 20255610 PMAQI
18th Jul 20256011 PMAQI
19th Jul 20256312 AMAQI
19th Jul 2025621 AMAQI
19th Jul 2025632 AMAQI
19th Jul 2025633 AMAQI
19th Jul 2025634 AMAQI
32°C28/37°C
19th Jul 2025645 AMAQI
19th Jul 2025636 AMAQI
19th Jul 2025737 AMAQI
19th Jul 20251008 AMAQI
19th Jul 20251209 AMAQI
19th Jul 202510610 AMAQI
19th Jul 202510311 AMAQI
19th Jul 202510312 PMAQI
19th Jul 2025981 PMAQI
19th Jul 2025842 PMAQI
19th Jul 2025783 PMAQI
19th Jul 2025704 PMAQI
19th Jul 2025685 PMAQI
19th Jul 2025676 PMAQI
19th Jul 2025687 PMAQI
19th Jul 2025658 PMAQI
19th Jul 2025629 PMAQI
19th Jul 20256010 PMAQI
19th Jul 20255811 PMAQI
20th Jul 20255812 AMAQI
20th Jul 2025631 AMAQI
20th Jul 2025662 AMAQI
20th Jul 2025693 AMAQI
20th Jul 2025694 AMAQI
31°C25/37°C
20th Jul 2025695 AMAQI
20th Jul 2025696 AMAQI
20th Jul 2025647 AMAQI
20th Jul 2025588 AMAQI
20th Jul 2025539 AMAQI
20th Jul 20255210 AMAQI
20th Jul 20255211 AMAQI
20th Jul 20255012 PMAQI
20th Jul 2025471 PMAQI
20th Jul 2025672 PMAQI
20th Jul 2025643 PMAQI
20th Jul 2025694 PMAQI
20th Jul 2025695 PMAQI
20th Jul 2025646 PMAQI
20th Jul 2025647 PMAQI
20th Jul 2025688 PMAQI
20th Jul 2025689 PMAQI
20th Jul 20257010 PMAQI
20th Jul 20256611 PMAQI
21st Jul 20257012 AMAQI
21st Jul 2025651 AMAQI
21st Jul 2025642 AMAQI
21st Jul 2025623 AMAQI
21st Jul 2025634 AMAQI
28°C25/31°C
21st Jul 2025625 AMAQI
21st Jul 2025626 AMAQI
21st Jul 2025727 AMAQI
21st Jul 2025768 AMAQI
21st Jul 2025699 AMAQI
21st Jul 20256610 AMAQI
21st Jul 20256211 AMAQI
21st Jul 20256812 PMAQI
21st Jul 2025611 PMAQI
21st Jul 2025632 PMAQI
21st Jul 2025613 PMAQI
21st Jul 2025634 PMAQI
21st Jul 2025565 PMAQI
21st Jul 2025626 PMAQI
21st Jul 2025597 PMAQI
21st Jul 2025628 PMAQI
21st Jul 2025599 PMAQI
21st Jul 20255610 PMAQI
21st Jul 20255711 PMAQI
22nd Jul 20255812 AMAQI
22nd Jul 2025641 AMAQI
22nd Jul 2025632 AMAQI
22nd Jul 2025643 AMAQI
22nd Jul 2025634 AMAQI
26°C25/27°C
22nd Jul 2025655 AMAQI
22nd Jul 2025646 AMAQI
22nd Jul 2025567 AMAQI
22nd Jul 2025608 AMAQI
22nd Jul 2025549 AMAQI
22nd Jul 20255310 AMAQI
22nd Jul 20254411 AMAQI
22nd Jul 20254612 PMAQI
22nd Jul 2025451 PMAQI
22nd Jul 2025592 PMAQI
22nd Jul 2025523 PMAQI
22nd Jul 2025474 PMAQI
22nd Jul 2025405 PMAQI
22nd Jul 2025426 PMAQI
22nd Jul 2025507 PMAQI
22nd Jul 2025518 PMAQI
22nd Jul 2025529 PMAQI
22nd Jul 20255410 PMAQI
22nd Jul 20255311 PMAQI
23rd Jul 20255312 AMAQI
23rd Jul 2025621 AMAQI
23rd Jul 2025602 AMAQI
23rd Jul 2025593 AMAQI
23rd Jul 2025594 AMAQI
27°C25/29°C
23rd Jul 2025615 AMAQI
23rd Jul 2025596 AMAQI
23rd Jul 2025437 AMAQI
23rd Jul 2025568 AMAQI
23rd Jul 2025549 AMAQI
23rd Jul 20255810 AMAQI
23rd Jul 20254811 AMAQI
23rd Jul 20255112 PMAQI
23rd Jul 2025641 PMAQI
23rd Jul 2025592 PMAQI
23rd Jul 2025583 PMAQI
23rd Jul 2025584 PMAQI
23rd Jul 2025545 PMAQI
23rd Jul 2025566 PMAQI
23rd Jul 2025547 PMAQI
23rd Jul 2025528 PMAQI
23rd Jul 2025529 PMAQI
23rd Jul 20255410 PMAQI
23rd Jul 20255411 PMAQI
24th Jul 20255312 AMAQI
24th Jul 2025561 AMAQI
24th Jul 2025572 AMAQI
24th Jul 2025573 AMAQI
24th Jul 2025584 AMAQI
28°C26/31°C
24th Jul 2025575 AMAQI
24th Jul 2025576 AMAQI
24th Jul 2025527 AMAQI
24th Jul 2025548 AMAQI
24th Jul 2025549 AMAQI
24th Jul 20255810 AMAQI
24th Jul 20255211 AMAQI
24th Jul 20255312 PMAQI
24th Jul 2025441 PMAQI
24th Jul 2025502 PMAQI
24th Jul 2025463 PMAQI
24th Jul 2025384 PMAQI
24th Jul 2025415 PMAQI
24th Jul 2025506 PMAQI
24th Jul 2025527 PMAQI
24th Jul 2025508 PMAQI
24th Jul 2025529 PMAQI
24th Jul 20255210 PMAQI
24th Jul 20255211 PMAQI
25th Jul 20255212 AMAQI
25th Jul 2025551 AMAQI
25th Jul 2025562 AMAQI
25th Jul 2025553 AMAQI
25th Jul 2025554 AMAQI
28°C26/32°C
25th Jul 2025545 AMAQI
25th Jul 2025546 AMAQI
25th Jul 2025647 AMAQI
25th Jul 2025718 AMAQI
25th Jul 2025689 AMAQI
25th Jul 20256810 AMAQI
25th Jul 20256311 AMAQI
25th Jul 20256512 PMAQI
25th Jul 2025621 PMAQI
25th Jul 2025542 PMAQI
25th Jul 2025603 PMAQI
25th Jul 2025624 PMAQI
25th Jul 2025695 PMAQI
25th Jul 2025596 PMAQI
25th Jul 2025637 PMAQI
25th Jul 2025618 PMAQI
25th Jul 2025609 PMAQI
25th Jul 20255510 PMAQI
25th Jul 20255611 PMAQI
26th Jul 20255812 AMAQI
26th Jul 2025561 AMAQI
26th Jul 2025562 AMAQI
26th Jul 2025573 AMAQI
26th Jul 2025574 AMAQI
29°C25/34°C
26th Jul 2025575 AMAQI
26th Jul 2025576 AMAQI
26th Jul 2025647 AMAQI
26th Jul 2025628 AMAQI
26th Jul 2025639 AMAQI
26th Jul 20257210 AMAQI
26th Jul 20257211 AMAQI
26th Jul 20257212 PMAQI
26th Jul 2025691 PMAQI
26th Jul 2025682 PMAQI
26th Jul 2025673 PMAQI
26th Jul 2025724 PMAQI
26th Jul 2025745 PMAQI
26th Jul 2025686 PMAQI
26th Jul 2025667 PMAQI
26th Jul 2025688 PMAQI
26th Jul 2025649 PMAQI
26th Jul 20256110 PMAQI
26th Jul 20256011 PMAQI
27th Jul 20255712 AMAQI
27th Jul 2025571 AMAQI
27th Jul 2025572 AMAQI
27th Jul 2025593 AMAQI
27th Jul 2025584 AMAQI
29°C26/35°C
27th Jul 2025585 AMAQI
27th Jul 2025586 AMAQI
27th Jul 2025587 AMAQI
27th Jul 2025648 AMAQI
27th Jul 2025689 AMAQI
27th Jul 20256610 AMAQI
27th Jul 20256311 AMAQI
27th Jul 20255812 PMAQI
27th Jul 2025521 PMAQI
27th Jul 2025542 PMAQI
27th Jul 2025623 PMAQI
27th Jul 2025594 PMAQI
27th Jul 2025575 PMAQI
27th Jul 2025696 PMAQI
27th Jul 2025627 PMAQI
27th Jul 2025698 PMAQI
27th Jul 2025709 PMAQI
27th Jul 20256810 PMAQI
27th Jul 20256611 PMAQI
28th Jul 20256112 AMAQI
28th Jul 2025571 AMAQI
28th Jul 2025582 AMAQI
28th Jul 2025583 AMAQI
28th Jul 2025584 AMAQI
30°C26/36°C
28th Jul 2025585 AMAQI
28th Jul 2025586 AMAQI
28th Jul 2025607 AMAQI
28th Jul 2025658 AMAQI
28th Jul 2025749 AMAQI
28th Jul 20257510 AMAQI
28th Jul 20257011 AMAQI
28th Jul 20257412 PMAQI
28th Jul 2025741 PMAQI
28th Jul 2025702 PMAQI
28th Jul 2025783 PMAQI
28th Jul 2025704 PMAQI
28th Jul 2025705 PMAQI
28th Jul 2025666 PMAQI
28th Jul 2025647 PMAQI
28th Jul 2025678 PMAQI
28th Jul 2025749 PMAQI
28th Jul 20257210 PMAQI
28th Jul 20257011 PMAQI
29th Jul 20256512 AMAQI
29th Jul 2025581 AMAQI
29th Jul 2025602 AMAQI
29th Jul 2025603 AMAQI
29th Jul 2025614 AMAQI
31°C27/35°C
29th Jul 2025615 AMAQI
29th Jul 2025616 AMAQI
29th Jul 2025787 AMAQI
29th Jul 2025988 AMAQI
29th Jul 20251149 AMAQI
29th Jul 202510910 AMAQI
29th Jul 202510511 AMAQI
29th Jul 20259812 PMAQI
29th Jul 2025901 PMAQI
29th Jul 2025842 PMAQI
29th Jul 2025753 PMAQI
29th Jul 2025754 PMAQI
29th Jul 2025745 PMAQI
29th Jul 2025736 PMAQI
29th Jul 2025677 PMAQI
29th Jul 2025678 PMAQI
29th Jul 2025669 PMAQI
29th Jul 20256810 PMAQI
29th Jul 20256911 PMAQI
30th Jul 20256612 AMAQI
30th Jul 2025641 AMAQI
30th Jul 2025622 AMAQI
30th Jul 2025643 AMAQI
30th Jul 2025644 AMAQI
32°C28/36°C
30th Jul 2025635 AMAQI
30th Jul 2025646 AMAQI
30th Jul 2025607 AMAQI
30th Jul 2025708 AMAQI
30th Jul 2025719 AMAQI
30th Jul 20258010 AMAQI
30th Jul 20257311 AMAQI
30th Jul 20257612 PMAQI
30th Jul 2025761 PMAQI
30th Jul 2025802 PMAQI
30th Jul 2025743 PMAQI
30th Jul 2025784 PMAQI
30th Jul 2025715 PMAQI
30th Jul 2025686 PMAQI
30th Jul 2025647 PMAQI
30th Jul 2025608 PMAQI
30th Jul 2025619 PMAQI
30th Jul 20256010 PMAQI
30th Jul 20256011 PMAQI
31st Jul 20256012 AMAQI
31st Jul 2025561 AMAQI
31st Jul 2025612 AMAQI
31st Jul 2025613 AMAQI
31st Jul 2025614 AMAQI
32°C28/37°C
31st Jul 2025615 AMAQI
31st Jul 2025616 AMAQI
31st Jul 2025617 AMAQI
31st Jul 2025618 AMAQI
31st Jul 2025609 AMAQI
31st Jul 20256810 AMAQI
31st Jul 20256811 AMAQI
31st Jul 20256912 PMAQI
31st Jul 2025641 PMAQI
31st Jul 2025602 PMAQI
31st Jul 2025613 PMAQI
31st Jul 2025584 PMAQI
31st Jul 2025585 PMAQI
31st Jul 2025576 PMAQI
31st Jul 2025547 PMAQI
31st Jul 2025548 PMAQI
31st Jul 2025569 PMAQI
31st Jul 20255610 PMAQI
31st Jul 20255511 PMAQI
1st Aug 20255412 AMAQI
1st Aug 2025551 AMAQI
1st Aug 2025532 AMAQI
1st Aug 2025533 AMAQI
1st Aug 2025534 AMAQI
32°C29/36°C
1st Aug 2025545 AMAQI
1st Aug 2025546 AMAQI
1st Aug 2025627 AMAQI
1st Aug 2025628 AMAQI
1st Aug 2025639 AMAQI
1st Aug 20255710 AMAQI
1st Aug 20255411 AMAQI
1st Aug 20255212 PMAQI
1st Aug 2025401 PMAQI
1st Aug 2025522 PMAQI
1st Aug 2025423 PMAQI
1st Aug 2025444 PMAQI
1st Aug 2025545 PMAQI
1st Aug 2025476 PMAQI
1st Aug 2025527 PMAQI
1st Aug 2025488 PMAQI
1st Aug 2025529 PMAQI
1st Aug 20255510 PMAQI
1st Aug 20255211 PMAQI
2nd Aug 20255512 AMAQI
2nd Aug 2025561 AMAQI
2nd Aug 2025542 AMAQI
2nd Aug 2025553 AMAQI
2nd Aug 2025554 AMAQI
28°C26/31°C
2nd Aug 2025565 AMAQI
2nd Aug 2025556 AMAQI
2nd Aug 2025447 AMAQI
2nd Aug 2025508 AMAQI
2nd Aug 2025449 AMAQI
2nd Aug 20255110 AMAQI
2nd Aug 20255111 AMAQI
2nd Aug 20254912 PMAQI
2nd Aug 2025521 PMAQI
2nd Aug 2025482 PMAQI
2nd Aug 2025523 PMAQI
2nd Aug 2025534 PMAQI
2nd Aug 2025555 PMAQI
2nd Aug 2025586 PMAQI
2nd Aug 2025547 PMAQI
2nd Aug 2025568 PMAQI
2nd Aug 2025589 PMAQI
2nd Aug 20255810 PMAQI
2nd Aug 20255411 PMAQI
3rd Aug 20255512 AMAQI
3rd Aug 2025551 AMAQI
3rd Aug 2025552 AMAQI
3rd Aug 2025543 AMAQI
3rd Aug 2025544 AMAQI
31°C26/37°C
3rd Aug 2025555 AMAQI
3rd Aug 2025546 AMAQI
3rd Aug 2025577 AMAQI
3rd Aug 2025608 AMAQI
3rd Aug 2025649 AMAQI
3rd Aug 20256210 AMAQI
3rd Aug 20255911 AMAQI
3rd Aug 20257012 PMAQI
3rd Aug 2025571 PMAQI
3rd Aug 2025562 PMAQI
3rd Aug 2025533 PMAQI
3rd Aug 2025544 PMAQI
3rd Aug 2025485 PMAQI
3rd Aug 2025476 PMAQI
3rd Aug 2025557 PMAQI
3rd Aug 2025588 PMAQI
3rd Aug 2025599 PMAQI
3rd Aug 20255810 PMAQI
3rd Aug 20255711 PMAQI
4th Aug 20255512 AMAQI
4th Aug 2025551 AMAQI
4th Aug 2025562 AMAQI
4th Aug 2025563 AMAQI
4th Aug 2025564 AMAQI
32°C28/38°C
4th Aug 2025565 AMAQI
4th Aug 2025576 AMAQI
4th Aug 2025607 AMAQI
4th Aug 2025598 AMAQI
4th Aug 2025609 AMAQI
4th Aug 20255810 AMAQI
4th Aug 20255811 AMAQI
4th Aug 20255412 PMAQI
4th Aug 2025631 PMAQI
4th Aug 2025552 PMAQI
4th Aug 2025563 PMAQI
4th Aug 2025554 PMAQI
4th Aug 2025545 PMAQI
4th Aug 2025566 PMAQI
4th Aug 2025567 PMAQI
4th Aug 2025588 PMAQI
4th Aug 2025589 PMAQI
4th Aug 20255610 PMAQI
4th Aug 20255711 PMAQI
5th Aug 20255612 AMAQI
5th Aug 2025561 AMAQI
5th Aug 2025562 AMAQI
5th Aug 2025563 AMAQI
5th Aug 2025574 AMAQI
31°C28/34°C
5th Aug 2025575 AMAQI
5 AM5th Aug 2025566 AMAQI
5th Aug 2025567 AMAQI
5th Aug 2025588 AMAQI
5th Aug 2025569 AMAQI
5th Aug 20255410 AMAQI
5th Aug 20255311 AMAQI
11 AM5th Aug 20255812 PMAQI
6 PM
11 PM
4 AM
--°C/°C
Day time
Avg. Highest Time
8 AM - 6 PM
63AQI
11 hours / Day
330 hours / Month
Avg. Lowest Time
5 AM - 6 PM
63AQI
14 hours / Day
420 hours / Month
In the last 30 days, during the daytime, the highest AQI was between 8 AM to 6 PM (Avg. 63), while the lowest AQI was between 5 AM to 6 PM (Avg. 63).
Night time
Avg. Highest Time
12 AM - 11 PM
61AQI
10 hours / Day
300 hours / Month
Avg. Lowest Time
12 AM - 11 PM
61AQI
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. 61), while the lowest AQI was between 12 AM to 11 PM (Avg. 61).
2025 Days Vs Air Quality
Hanoi Environmental Protection Department, Hanoi, Ha Noi, Vietnam
2025
0.4%
1
71%
154
23%
50
5%
11
Total number of days with different AQI categories in last 217 days in 2025 (148 days remaining)
Good
1 DaysModerate
154 DaysPoor
50 DaysUnhealthy
11 DaysSevere
0 DaysHazardous
0 DaysUnder WHO’s Safe Air Quality Limits: 0.46%
Health Risk Level:
Extreme
In 2025, 0.46% of 217 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
Hanoi Environmental Protection Department, Hanoi, Ha Noi, Vietnam
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
132AQI
132AQI
2nd January 2025
162AQI
162AQI
3rd January 2025
129AQI
129AQI
4th January 2025
101AQI
101AQI
5th January 2025
99AQI
99AQI
6th January 2025
103AQI
103AQI
7th January 2025
130AQI
130AQI
8th January 2025
143AQI
143AQI
9th January 2025
152AQI
152AQI
10th January 2025
105AQI
105AQI
11th January 2025
113AQI
113AQI
12th January 2025
123AQI
123AQI
13th January 2025
148AQI
148AQI
14th January 2025
150AQI
150AQI
15th January 2025
151AQI
151AQI
16th January 2025
151AQI
151AQI
17th January 2025
159AQI
159AQI
18th January 2025
164AQI
164AQI
19th January 2025
163AQI
163AQI
20th January 2025
176AQI
176AQI
21st January 2025
160AQI
160AQI
22nd January 2025
158AQI
158AQI
23rd January 2025
141AQI
141AQI
24th January 2025
134AQI
134AQI
25th January 2025
109AQI
109AQI
26th January 2025
87AQI
87AQI
27th January 2025
96AQI
96AQI
28th January 2025
86AQI
86AQI
29th January 2025
124AQI
124AQI
30th January 2025
115AQI
115AQI
31st January 2025
101AQI
101AQI
1st February 2025
90AQI
90AQI
2nd February 2025
75AQI
75AQI
3rd February 2025
61AQI
61AQI
4th February 2025
73AQI
73AQI
5th February 2025
98AQI
98AQI
6th February 2025
110AQI
110AQI
7th February 2025
54AQI
54AQI
8th February 2025
66AQI
66AQI
9th February 2025
87AQI
87AQI
10th February 2025
136AQI
136AQI
11th February 2025
145AQI
145AQI
12th February 2025
164AQI
164AQI
13th February 2025
141AQI
141AQI
14th February 2025
137AQI
137AQI
15th February 2025
148AQI
148AQI
16th February 2025
82AQI
82AQI
17th February 2025
112AQI
112AQI
18th February 2025
71AQI
71AQI
19th February 2025
91AQI
91AQI
20th February 2025
132AQI
132AQI
21st February 2025
111AQI
111AQI
22nd February 2025
128AQI
128AQI
23rd February 2025
71AQI
71AQI
24th February 2025
78AQI
78AQI
25th February 2025
86AQI
86AQI
26th February 2025
80AQI
80AQI
27th February 2025
139AQI
139AQI
28th February 2025
104AQI
104AQI
1st March 2025
114AQI
114AQI
2nd March 2025
87AQI
87AQI
3rd March 2025
89AQI
89AQI
4th March 2025
90AQI
90AQI
5th March 2025
90AQI
90AQI
6th March 2025
71AQI
71AQI
7th March 2025
77AQI
77AQI
8th March 2025
96AQI
96AQI
9th March 2025
129AQI
129AQI
10th March 2025
141AQI
141AQI
11th March 2025
119AQI
119AQI
12th March 2025
101AQI
101AQI
13th March 2025
85AQI
85AQI
14th March 2025
96AQI
96AQI
15th March 2025
83AQI
83AQI
16th March 2025
68AQI
68AQI
17th March 2025
84AQI
84AQI
18th March 2025
84AQI
84AQI
19th March 2025
82AQI
82AQI
20th March 2025
91AQI
91AQI
21st March 2025
123AQI
123AQI
22nd March 2025
112AQI
112AQI
23rd March 2025
117AQI
117AQI
24th March 2025
127AQI
127AQI
25th March 2025
127AQI
127AQI
26th March 2025
100AQI
100AQI
27th March 2025
100AQI
100AQI
28th March 2025
98AQI
98AQI
29th March 2025
76AQI
76AQI
30th March 2025
57AQI
57AQI
31st March 2025
65AQI
65AQI
1st April 2025
82AQI
82AQI
2nd April 2025
109AQI
109AQI
3rd April 2025
95AQI
95AQI
4th April 2025
138AQI
138AQI
5th April 2025
104AQI
104AQI
6th April 2025
121AQI
121AQI
7th April 2025
108AQI
108AQI
8th April 2025
110AQI
110AQI
9th April 2025
98AQI
98AQI
10th April 2025
94AQI
94AQI
11th April 2025
92AQI
92AQI
12th April 2025
100AQI
100AQI
13th April 2025
89AQI
89AQI
14th April 2025
101AQI
101AQI
15th April 2025
103AQI
103AQI
16th April 2025
114AQI
114AQI
17th April 2025
103AQI
103AQI
18th April 2025
107AQI
107AQI
19th April 2025
98AQI
98AQI
20th April 2025
88AQI
88AQI
21st April 2025
83AQI
83AQI
22nd April 2025
90AQI
90AQI
23rd April 2025
92AQI
92AQI
24th April 2025
85AQI
85AQI
25th April 2025
74AQI
74AQI
26th April 2025
79AQI
79AQI
27th April 2025
58AQI
58AQI
28th April 2025
54AQI
54AQI
29th April 2025
73AQI
73AQI
30th April 2025
65AQI
65AQI
1st May 2025
55AQI
55AQI
2nd May 2025
76AQI
76AQI
3rd May 2025
74AQI
74AQI
4th May 2025
75AQI
75AQI
5th May 2025
82AQI
82AQI
6th May 2025
72AQI
72AQI
7th May 2025
72AQI
72AQI
8th May 2025
80AQI
80AQI
9th May 2025
79AQI
79AQI
10th May 2025
79AQI
79AQI
11th May 2025
57AQI
57AQI
12th May 2025
74AQI
74AQI
13th May 2025
72AQI
72AQI
14th May 2025
67AQI
67AQI
15th May 2025
63AQI
63AQI
16th May 2025
62AQI
62AQI
17th May 2025
53AQI
53AQI
18th May 2025
56AQI
56AQI
19th May 2025
53AQI
53AQI
20th May 2025
58AQI
58AQI
21st May 2025
60AQI
60AQI
22nd May 2025
59AQI
59AQI
23rd May 2025
57AQI
57AQI
24th May 2025
57AQI
57AQI
25th May 2025
55AQI
55AQI
26th May 2025
60AQI
60AQI
27th May 2025
88AQI
88AQI
28th May 2025
87AQI
87AQI
29th May 2025
68AQI
68AQI
30th May 2025
63AQI
63AQI
31st May 2025
63AQI
63AQI
1st June 2025
52AQI
52AQI
2nd June 2025
53AQI
53AQI
3rd June 2025
53AQI
53AQI
4th June 2025
59AQI
59AQI
5th June 2025
70AQI
70AQI
6th June 2025
60AQI
60AQI
7th June 2025
61AQI
61AQI
8th June 2025
61AQI
61AQI
9th June 2025
61AQI
61AQI
10th June 2025
55AQI
55AQI
11th June 2025
63AQI
63AQI
12th June 2025
61AQI
61AQI
13th June 2025
52AQI
52AQI
14th June 2025
59AQI
59AQI
15th June 2025
64AQI
64AQI
16th June 2025
61AQI
61AQI
17th June 2025
58AQI
58AQI
18th June 2025
56AQI
56AQI
19th June 2025
62AQI
62AQI
20th June 2025
69AQI
69AQI
21st June 2025
63AQI
63AQI
22nd June 2025
64AQI
64AQI
23rd June 2025
64AQI
64AQI
24th June 2025
64AQI
64AQI
25th June 2025
58AQI
58AQI
26th June 2025
62AQI
62AQI
27th June 2025
60AQI
60AQI
28th June 2025
56AQI
56AQI
29th June 2025
58AQI
58AQI
30th June 2025
56AQI
56AQI
1st July 2025
50AQI
50AQI
2nd July 2025
52AQI
52AQI
3rd July 2025
56AQI
56AQI
4th July 2025
65AQI
65AQI
5th July 2025
63AQI
63AQI
6th July 2025
59AQI
59AQI
7th July 2025
66AQI
66AQI
8th July 2025
60AQI
60AQI
9th July 2025
67AQI
67AQI
10th July 2025
58AQI
58AQI
11th July 2025
55AQI
55AQI
12th July 2025
55AQI
55AQI
13th July 2025
57AQI
57AQI
14th July 2025
71AQI
71AQI
15th July 2025
82AQI
82AQI
16th July 2025
65AQI
65AQI
17th July 2025
63AQI
63AQI
18th July 2025
61AQI
61AQI
19th July 2025
73AQI
73AQI
20th July 2025
64AQI
64AQI
21st July 2025
63AQI
63AQI
22nd July 2025
54AQI
54AQI
23rd July 2025
56AQI
56AQI
24th July 2025
52AQI
52AQI
25th July 2025
60AQI
60AQI
26th July 2025
64AQI
64AQI
27th July 2025
61AQI
61AQI
28th July 2025
66AQI
66AQI
29th July 2025
74AQI
74AQI
30th July 2025
67AQI
67AQI
31st July 2025
60AQI
60AQI
1st August 2025
53AQI
53AQI
2nd August 2025
54AQI
54AQI
3rd August 2025
56AQI
56AQI
4th August 2025
57AQI
57AQI
131AQI
103AQI
96AQI
94AQI
67AQI
60AQI
62AQI
55AQI
No. of days
Jan.Feb.Mar.Apr.MayJun.Jul.Aug.Sep.Oct.Nov.Dec.Total Days
202587AQI
4
17
10
15
12
1
21
10
19
11
31
30
1
30
4
1
154
50
11
Highest AQI recorded in
January131AQI
Lowest AQI recorded in
August55AQI
202472AQI
5
8
2
1
2
10
30
3
28
27
2
4
15
7
3
9
15
3
4
2
26
2
18
11
2
47
149
31
11
1
Highest AQI recorded in
January122AQI
Lowest AQI recorded in
August33AQI
202379AQI
1
9
3
9
14
5
2
16
5
2
16
8
6
14
11
15
2
3
4
9
9
6
3
49
83
22
15
3
Highest AQI recorded in
January120AQI
Lowest AQI recorded in
November5AQI
202254AQI
2
11
2
10
6
1
7
21
4
1
3
2
1
24
41
5
1
Highest AQI recorded in
December88AQI
Lowest AQI recorded in
July5AQI
202177AQI
2
5
10
12
1
1
10
12
6
21
2
1
10
1
12
10
19
9
1
14
15
1
11
14
3
2
4
11
8
2
5
15
10
75
120
48
16
1
Highest AQI recorded in
January133AQI
Lowest AQI recorded in
July52AQI
202070AQI
1
7
3
1
1
11
20
10
17
1
16
14
1
25
4
3
12
11
4
49
91
17
5
Highest AQI recorded in
December100AQI
Lowest AQI recorded in
June0AQI
Most & Least Polluted Years Over the Last 6 Years
Most Polluted Year Recorded
2025(Avg.)
87AQILeast Polluted Year Recorded
2022(Avg.)
54AQIHanoi Environmental Protection Department's annual 2025 AQI (87) shows an average percentage change of 25.3% (worsened AQI) compared to previous years: 2020 (70), 2021 (77), 2022 (54), 2023 (79), 2024 (72).
