Ha Noi Hong Ha, 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
Ha Noi Hong Ha, Hanoi, Ha Noi, Vietnam
2022
2023
2024
2025
AQI
.
Days
AQI Trends: Highest and Lowest
Highest AQI recorded on
1st Aug 2025
54AQILowest AQI recorded on
31st Aug 2022
1AQISame Day Analysis (2nd August ):
On this day, AQI across the 4 years varied significantly: 2025 ranks 1st highest AQI at 53 of Moderate air quality on the same day.
Download 2024 Annual Data
World Air Quality Report
Day & Night AQI Trend: 2nd Aug - 3rd Aug 2025
Ha Noi Hong Ha, Hanoi, Ha Noi, Vietnam
AQI
Day
Night
.
5 AM2nd Aug 2025
6 PM
4 AM3rd Aug 2025
Day time
Avg. Highest Time
6PM2nd Aug
62AQI
Avg. Lowest Time
9AM2nd Aug
42AQI
Night time
Avg. Highest Time
9PM2nd Aug
61AQI
Avg. Lowest Time
4AM3rd Aug
55AQI
In the last 24 hours,
Ha Noi Hong Ha's AQI reached its highest point of 62 at 6 PM during the Day, while the lowest point, 42, was recorded at 9 AM during the Day between 2nd Aug and 3rd Aug 2025.
Day & Night AQI Trend : Jul - Aug 2025
Ha Noi Hong Ha, Hanoi, Ha Noi, Vietnam
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 2025555 AMAQI
4th Jul 2025556 AMAQI
4th Jul 2025727 AMAQI
4th Jul 2025808 AMAQI
4th Jul 2025799 AMAQI
4th Jul 20257810 AMAQI
4th Jul 20257011 AMAQI
4th Jul 20256512 PMAQI
4th Jul 2025611 PMAQI
4th Jul 2025652 PMAQI
4th Jul 2025653 PMAQI
4th Jul 2025614 PMAQI
4th Jul 2025615 PMAQI
4th Jul 2025586 PMAQI
4th Jul 2025587 PMAQI
4th Jul 2025608 PMAQI
4th Jul 2025609 PMAQI
4th Jul 20255810 PMAQI
4th Jul 20255711 PMAQI
5th Jul 20255712 AMAQI
5th Jul 2025581 AMAQI
5th Jul 2025592 AMAQI
5th Jul 2025603 AMAQI
5th Jul 2025604 AMAQI
29°C25/33°C
5th Jul 2025605 AMAQI
5th Jul 2025606 AMAQI
5th Jul 2025617 AMAQI
5th Jul 2025628 AMAQI
5th Jul 2025699 AMAQI
5th Jul 20256210 AMAQI
5th Jul 20256711 AMAQI
5th Jul 20256312 PMAQI
5th Jul 2025611 PMAQI
5th Jul 2025652 PMAQI
5th Jul 2025623 PMAQI
5th Jul 2025604 PMAQI
5th Jul 2025565 PMAQI
5th Jul 2025616 PMAQI
5th Jul 2025597 PMAQI
5th Jul 2025628 PMAQI
5th Jul 2025649 PMAQI
5th Jul 20256210 PMAQI
5th Jul 20255811 PMAQI
6th Jul 20255712 AMAQI
6th Jul 2025601 AMAQI
6th Jul 2025602 AMAQI
6th Jul 2025613 AMAQI
6th Jul 2025614 AMAQI
30°C26/35°C
6th Jul 2025615 AMAQI
6th Jul 2025616 AMAQI
6th Jul 2025607 AMAQI
6th Jul 2025628 AMAQI
6th Jul 2025649 AMAQI
6th Jul 20256610 AMAQI
6th Jul 20256611 AMAQI
6th Jul 20255912 PMAQI
6th Jul 2025591 PMAQI
6th Jul 2025572 PMAQI
6th Jul 2025563 PMAQI
6th Jul 2025524 PMAQI
6th Jul 2025545 PMAQI
6th Jul 2025576 PMAQI
6th Jul 2025507 PMAQI
6th Jul 2025528 PMAQI
6th Jul 2025549 PMAQI
6th Jul 20255310 PMAQI
6th Jul 20255211 PMAQI
7th Jul 20255512 AMAQI
7th Jul 2025611 AMAQI
7th Jul 2025612 AMAQI
7th Jul 2025613 AMAQI
7th Jul 2025614 AMAQI
29°C27/33°C
7th Jul 2025605 AMAQI
7th Jul 2025616 AMAQI
7th Jul 2025617 AMAQI
7th Jul 2025708 AMAQI
7th Jul 2025799 AMAQI
7th Jul 20258210 AMAQI
7th Jul 20258011 AMAQI
7th Jul 20258012 PMAQI
7th Jul 2025691 PMAQI
7th Jul 2025742 PMAQI
7th Jul 2025743 PMAQI
7th Jul 2025744 PMAQI
7th Jul 2025705 PMAQI
7th Jul 2025656 PMAQI
7th Jul 2025667 PMAQI
7th Jul 2025648 PMAQI
7th Jul 2025629 PMAQI
7th Jul 20256410 PMAQI
7th Jul 20256011 PMAQI
8th Jul 20255912 AMAQI
8th Jul 2025601 AMAQI
8th Jul 2025612 AMAQI
8th Jul 2025643 AMAQI
8th Jul 2025644 AMAQI
30°C26/35°C
8th Jul 2025645 AMAQI
8th Jul 2025646 AMAQI
8th Jul 2025627 AMAQI
8th Jul 2025648 AMAQI
8th Jul 2025649 AMAQI
8th Jul 20256510 AMAQI
8th Jul 20256411 AMAQI
8th Jul 20256412 PMAQI
8th Jul 2025701 PMAQI
8th Jul 2025742 PMAQI
8th Jul 2025713 PMAQI
8th Jul 2025674 PMAQI
8th Jul 2025675 PMAQI
8th Jul 2025626 PMAQI
8th Jul 2025587 PMAQI
8th Jul 2025578 PMAQI
8th Jul 2025639 PMAQI
8th Jul 20256210 PMAQI
8th Jul 20256511 PMAQI
9th Jul 20256812 AMAQI
9th Jul 2025611 AMAQI
9th Jul 2025642 AMAQI
9th Jul 2025643 AMAQI
9th Jul 2025634 AMAQI
31°C27/37°C
9th Jul 2025635 AMAQI
9th Jul 2025636 AMAQI
9th Jul 2025687 AMAQI
9th Jul 2025708 AMAQI
9th Jul 2025719 AMAQI
9th Jul 20256710 AMAQI
9th Jul 20257211 AMAQI
9th Jul 20257412 PMAQI
9th Jul 2025781 PMAQI
9th Jul 2025792 PMAQI
9th Jul 2025743 PMAQI
9th Jul 2025694 PMAQI
9th Jul 2025695 PMAQI
9th Jul 2025686 PMAQI
9th Jul 2025667 PMAQI
9th Jul 2025738 PMAQI
9th Jul 2025819 PMAQI
9th Jul 20257110 PMAQI
9th Jul 20256411 PMAQI
10th Jul 20256612 AMAQI
10th Jul 2025651 AMAQI
10th Jul 2025662 AMAQI
10th Jul 2025673 AMAQI
10th Jul 2025664 AMAQI
32°C28/37°C
10th Jul 2025665 AMAQI
10th Jul 2025666 AMAQI
10th Jul 2025447 AMAQI
10th Jul 2025428 AMAQI
10th Jul 2025389 AMAQI
10th Jul 20254610 AMAQI
10th Jul 20254611 AMAQI
10th Jul 20254812 PMAQI
10th Jul 2025521 PMAQI
10th Jul 2025492 PMAQI
10th Jul 2025473 PMAQI
10th Jul 2025484 PMAQI
10th Jul 2025495 PMAQI
10th Jul 2025516 PMAQI
10th Jul 2025567 PMAQI
10th Jul 2025578 PMAQI
10th Jul 2025619 PMAQI
10th Jul 20256110 PMAQI
10th Jul 20255811 PMAQI
11th Jul 20255812 AMAQI
11th Jul 2025641 AMAQI
11th Jul 2025622 AMAQI
11th Jul 2025613 AMAQI
11th Jul 2025604 AMAQI
30°C26/35°C
11th Jul 2025605 AMAQI
11th Jul 2025606 AMAQI
11th Jul 2025467 AMAQI
11th Jul 2025448 AMAQI
11th Jul 2025509 AMAQI
11th Jul 20255610 AMAQI
11th Jul 20255311 AMAQI
11th Jul 20255512 PMAQI
11th Jul 2025561 PMAQI
11th Jul 2025562 PMAQI
11th Jul 2025583 PMAQI
11th Jul 2025594 PMAQI
11th Jul 2025575 PMAQI
11th Jul 2025556 PMAQI
11th Jul 2025567 PMAQI
11th Jul 2025548 PMAQI
11th Jul 2025549 PMAQI
11th Jul 20255210 PMAQI
11th Jul 20255311 PMAQI
12th Jul 20255412 AMAQI
12th Jul 2025601 AMAQI
12th Jul 2025602 AMAQI
12th Jul 2025583 AMAQI
12th Jul 2025594 AMAQI
29°C26/33°C
12th Jul 2025585 AMAQI
12th Jul 2025596 AMAQI
12th Jul 2025547 AMAQI
12th Jul 2025538 AMAQI
12th Jul 2025569 AMAQI
12th Jul 20255810 AMAQI
12th Jul 20255511 AMAQI
12th Jul 20255512 PMAQI
12th Jul 2025581 PMAQI
12th Jul 2025582 PMAQI
12th Jul 2025573 PMAQI
12th Jul 2025544 PMAQI
12th Jul 2025555 PMAQI
12th Jul 2025526 PMAQI
12th Jul 2025527 PMAQI
12th Jul 2025518 PMAQI
12th Jul 2025539 PMAQI
12th Jul 20255110 PMAQI
12th Jul 20255111 PMAQI
13th Jul 20255412 AMAQI
13th Jul 2025591 AMAQI
13th Jul 2025582 AMAQI
13th Jul 2025583 AMAQI
13th Jul 2025594 AMAQI
29°C26/34°C
13th Jul 2025585 AMAQI
13th Jul 2025586 AMAQI
13th Jul 2025577 AMAQI
13th Jul 2025558 AMAQI
13th Jul 2025569 AMAQI
13th Jul 20255810 AMAQI
13th Jul 20255611 AMAQI
13th Jul 20255612 PMAQI
13th Jul 2025561 PMAQI
13th Jul 2025562 PMAQI
13th Jul 2025563 PMAQI
13th Jul 2025524 PMAQI
13th Jul 2025485 PMAQI
13th Jul 2025536 PMAQI
13th Jul 2025567 PMAQI
13th Jul 2025588 PMAQI
13th Jul 2025599 PMAQI
13th Jul 20256310 PMAQI
13th Jul 20256211 PMAQI
14th Jul 20256412 AMAQI
14th Jul 2025591 AMAQI
14th Jul 2025582 AMAQI
14th Jul 2025583 AMAQI
14th Jul 2025584 AMAQI
29°C26/34°C
14th Jul 2025585 AMAQI
14th Jul 2025586 AMAQI
14th Jul 2025727 AMAQI
14th Jul 2025888 AMAQI
14th Jul 2025899 AMAQI
14th Jul 20258810 AMAQI
14th Jul 20258411 AMAQI
14th Jul 20258212 PMAQI
14th Jul 2025861 PMAQI
14th Jul 2025892 PMAQI
14th Jul 20251013 PMAQI
14th Jul 2025874 PMAQI
14th Jul 2025705 PMAQI
14th Jul 2025676 PMAQI
14th Jul 2025607 PMAQI
14th Jul 2025638 PMAQI
14th Jul 2025629 PMAQI
14th Jul 20256410 PMAQI
14th Jul 20256011 PMAQI
15th Jul 20256012 AMAQI
15th Jul 2025581 AMAQI
15th Jul 2025622 AMAQI
15th Jul 2025683 AMAQI
15th Jul 2025664 AMAQI
31°C27/35°C
15th Jul 2025675 AMAQI
15th Jul 2025686 AMAQI
15th Jul 2025637 AMAQI
15th Jul 2025688 AMAQI
15th Jul 2025819 AMAQI
15th Jul 20259110 AMAQI
15th Jul 202510611 AMAQI
15th Jul 202511412 PMAQI
15th Jul 20251161 PMAQI
15th Jul 20251272 PMAQI
15th Jul 20251273 PMAQI
15th Jul 20251184 PMAQI
15th Jul 20251135 PMAQI
15th Jul 20251046 PMAQI
15th Jul 20251017 PMAQI
15th Jul 2025818 PMAQI
15th Jul 2025709 PMAQI
15th Jul 20256910 PMAQI
15th Jul 20255811 PMAQI
16th Jul 20256112 AMAQI
16th Jul 2025621 AMAQI
16th Jul 2025642 AMAQI
16th Jul 2025703 AMAQI
16th Jul 2025724 AMAQI
30°C28/34°C
16th Jul 2025725 AMAQI
16th Jul 2025726 AMAQI
16th Jul 2025527 AMAQI
16th Jul 2025548 AMAQI
16th Jul 2025569 AMAQI
16th Jul 20255910 AMAQI
16th Jul 20255211 AMAQI
16th Jul 20255412 PMAQI
16th Jul 2025521 PMAQI
16th Jul 2025542 PMAQI
16th Jul 2025603 PMAQI
16th Jul 2025594 PMAQI
16th Jul 2025475 PMAQI
16th Jul 2025526 PMAQI
16th Jul 2025557 PMAQI
16th Jul 2025568 PMAQI
16th Jul 2025569 PMAQI
16th Jul 20255410 PMAQI
16th Jul 20255211 PMAQI
17th Jul 20255712 AMAQI
17th Jul 2025661 AMAQI
17th Jul 2025652 AMAQI
17th Jul 2025653 AMAQI
17th Jul 2025654 AMAQI
31°C27/35°C
17th Jul 2025655 AMAQI
17th Jul 2025646 AMAQI
17th Jul 2025547 AMAQI
17th Jul 2025528 AMAQI
17th Jul 2025579 AMAQI
17th Jul 20256210 AMAQI
17th Jul 20255611 AMAQI
17th Jul 20255412 PMAQI
17th Jul 2025541 PMAQI
17th Jul 2025552 PMAQI
17th Jul 2025563 PMAQI
17th Jul 2025554 PMAQI
17th Jul 2025555 PMAQI
17th Jul 2025546 PMAQI
17th Jul 2025577 PMAQI
17th Jul 2025568 PMAQI
17th Jul 2025559 PMAQI
17th Jul 20255510 PMAQI
17th Jul 20255311 PMAQI
18th Jul 20255812 AMAQI
18th Jul 2025621 AMAQI
18th Jul 2025622 AMAQI
18th Jul 2025623 AMAQI
18th Jul 2025624 AMAQI
31°C27/37°C
18th Jul 2025625 AMAQI
18th Jul 2025626 AMAQI
18th Jul 2025617 AMAQI
18th Jul 2025648 AMAQI
18th Jul 2025629 AMAQI
18th Jul 20256410 AMAQI
18th Jul 20256411 AMAQI
18th Jul 20256312 PMAQI
18th Jul 2025681 PMAQI
18th Jul 2025722 PMAQI
18th Jul 2025683 PMAQI
18th Jul 2025674 PMAQI
18th Jul 2025625 PMAQI
18th Jul 2025556 PMAQI
18th Jul 2025527 PMAQI
18th Jul 2025548 PMAQI
18th Jul 2025519 PMAQI
18th Jul 20255210 PMAQI
18th Jul 20254911 PMAQI
19th Jul 20255812 AMAQI
19th Jul 2025621 AMAQI
19th Jul 2025632 AMAQI
19th Jul 2025643 AMAQI
19th Jul 2025654 AMAQI
32°C28/37°C
19th Jul 2025655 AMAQI
19th Jul 2025656 AMAQI
19th Jul 2025917 AMAQI
19th Jul 2025978 AMAQI
19th Jul 20251349 AMAQI
19th Jul 202510710 AMAQI
19th Jul 20259811 AMAQI
19th Jul 202510012 PMAQI
19th Jul 2025951 PMAQI
19th Jul 2025852 PMAQI
19th Jul 2025863 PMAQI
19th Jul 2025754 PMAQI
19th Jul 2025765 PMAQI
19th Jul 2025686 PMAQI
19th Jul 2025687 PMAQI
19th Jul 2025688 PMAQI
19th Jul 2025589 PMAQI
19th Jul 20255210 PMAQI
19th Jul 20254811 PMAQI
20th Jul 20255512 AMAQI
20th Jul 2025641 AMAQI
20th Jul 2025672 AMAQI
20th Jul 2025703 AMAQI
20th Jul 2025704 AMAQI
31°C25/37°C
20th Jul 2025705 AMAQI
20th Jul 2025706 AMAQI
20th Jul 2025587 AMAQI
20th Jul 2025518 AMAQI
20th Jul 2025499 AMAQI
20th Jul 20255010 AMAQI
20th Jul 20255311 AMAQI
20th Jul 20255312 PMAQI
20th Jul 2025541 PMAQI
20th Jul 2025562 PMAQI
20th Jul 2025563 PMAQI
20th Jul 2025554 PMAQI
20th Jul 2025575 PMAQI
20th Jul 2025616 PMAQI
20th Jul 2025617 PMAQI
20th Jul 2025658 PMAQI
20th Jul 2025679 PMAQI
20th Jul 20256610 PMAQI
20th Jul 20256211 PMAQI
21st Jul 20256112 AMAQI
21st Jul 2025661 AMAQI
21st Jul 2025632 AMAQI
21st Jul 2025643 AMAQI
21st Jul 2025634 AMAQI
28°C25/31°C
21st Jul 2025645 AMAQI
21st Jul 2025646 AMAQI
21st Jul 2025597 AMAQI
21st Jul 2025618 AMAQI
21st Jul 2025619 AMAQI
21st Jul 20256010 AMAQI
21st Jul 20255311 AMAQI
21st Jul 20254812 PMAQI
21st Jul 2025481 PMAQI
21st Jul 2025552 PMAQI
21st Jul 2025523 PMAQI
21st Jul 2025484 PMAQI
21st Jul 2025505 PMAQI
21st Jul 2025496 PMAQI
21st Jul 2025507 PMAQI
21st Jul 2025478 PMAQI
21st Jul 2025509 PMAQI
21st Jul 20255010 PMAQI
21st Jul 20254811 PMAQI
22nd Jul 20255212 AMAQI
22nd Jul 2025591 AMAQI
22nd Jul 2025612 AMAQI
22nd Jul 2025623 AMAQI
22nd Jul 2025624 AMAQI
26°C25/27°C
22nd Jul 2025625 AMAQI
22nd Jul 2025626 AMAQI
22nd Jul 2025307 AMAQI
22nd Jul 2025258 AMAQI
22nd Jul 2025299 AMAQI
22nd Jul 20252610 AMAQI
22nd Jul 20252411 AMAQI
22nd Jul 20252312 PMAQI
22nd Jul 2025241 PMAQI
22nd Jul 2025262 PMAQI
22nd Jul 2025283 PMAQI
22nd Jul 2025304 PMAQI
22nd Jul 2025265 PMAQI
22nd Jul 2025236 PMAQI
22nd Jul 2025287 PMAQI
22nd Jul 2025288 PMAQI
22nd Jul 2025299 PMAQI
22nd Jul 20252710 PMAQI
22nd Jul 20252911 PMAQI
23rd Jul 20254012 AMAQI
23rd Jul 2025581 AMAQI
23rd Jul 2025562 AMAQI
23rd Jul 2025563 AMAQI
23rd Jul 2025564 AMAQI
27°C25/29°C
23rd Jul 2025565 AMAQI
23rd Jul 2025566 AMAQI
23rd Jul 2025397 AMAQI
23rd Jul 2025368 AMAQI
23rd Jul 2025439 AMAQI
23rd Jul 20253910 AMAQI
23rd Jul 20253011 AMAQI
23rd Jul 20253312 PMAQI
23rd Jul 2025361 PMAQI
23rd Jul 2025342 PMAQI
23rd Jul 2025303 PMAQI
23rd Jul 2025364 PMAQI
23rd Jul 2025295 PMAQI
23rd Jul 2025326 PMAQI
23rd Jul 2025437 PMAQI
23rd Jul 2025508 PMAQI
23rd Jul 2025499 PMAQI
23rd Jul 20254810 PMAQI
23rd Jul 20254411 PMAQI
24th Jul 20254412 AMAQI
24th Jul 2025531 AMAQI
24th Jul 2025542 AMAQI
24th Jul 2025533 AMAQI
24th Jul 2025534 AMAQI
28°C26/31°C
24th Jul 2025535 AMAQI
24th Jul 2025546 AMAQI
24th Jul 2025397 AMAQI
24th Jul 2025308 AMAQI
24th Jul 2025369 AMAQI
24th Jul 20254510 AMAQI
24th Jul 20253711 AMAQI
24th Jul 20253612 PMAQI
24th Jul 2025401 PMAQI
24th Jul 2025362 PMAQI
24th Jul 2025353 PMAQI
24th Jul 2025344 PMAQI
24th Jul 2025315 PMAQI
24th Jul 2025276 PMAQI
24th Jul 2025327 PMAQI
24th Jul 2025388 PMAQI
24th Jul 2025409 PMAQI
24th Jul 20254110 PMAQI
24th Jul 20254011 PMAQI
25th Jul 20254612 AMAQI
25th Jul 2025531 AMAQI
25th Jul 2025542 AMAQI
25th Jul 2025533 AMAQI
25th Jul 2025534 AMAQI
28°C26/32°C
25th Jul 2025545 AMAQI
25th Jul 2025546 AMAQI
25th Jul 2025567 AMAQI
25th Jul 2025618 AMAQI
25th Jul 2025689 AMAQI
25th Jul 20257110 AMAQI
25th Jul 20256811 AMAQI
25th Jul 20256612 PMAQI
25th Jul 2025661 PMAQI
25th Jul 2025592 PMAQI
25th Jul 2025613 PMAQI
25th Jul 2025634 PMAQI
25th Jul 2025605 PMAQI
25th Jul 2025546 PMAQI
25th Jul 2025597 PMAQI
25th Jul 2025648 PMAQI
25th Jul 2025649 PMAQI
25th Jul 20256010 PMAQI
25th Jul 20255411 PMAQI
26th Jul 20255612 AMAQI
26th Jul 2025551 AMAQI
26th Jul 2025562 AMAQI
26th Jul 2025563 AMAQI
26th Jul 2025574 AMAQI
29°C25/34°C
26th Jul 2025575 AMAQI
26th Jul 2025576 AMAQI
26th Jul 2025627 AMAQI
26th Jul 2025698 AMAQI
26th Jul 2025719 AMAQI
26th Jul 20257210 AMAQI
26th Jul 20258011 AMAQI
26th Jul 20257712 PMAQI
26th Jul 2025661 PMAQI
26th Jul 2025682 PMAQI
26th Jul 2025623 PMAQI
26th Jul 2025624 PMAQI
26th Jul 2025645 PMAQI
26th Jul 2025586 PMAQI
26th Jul 2025547 PMAQI
26th Jul 2025558 PMAQI
26th Jul 2025519 PMAQI
26th Jul 20254610 PMAQI
26th Jul 20254911 PMAQI
27th Jul 20255012 AMAQI
27th Jul 2025561 AMAQI
27th Jul 2025572 AMAQI
27th Jul 2025583 AMAQI
27th Jul 2025574 AMAQI
29°C26/35°C
27th Jul 2025575 AMAQI
27th Jul 2025586 AMAQI
27th Jul 2025567 AMAQI
27th Jul 2025608 AMAQI
27th Jul 2025619 AMAQI
27th Jul 20256210 AMAQI
27th Jul 20255811 AMAQI
27th Jul 20255812 PMAQI
27th Jul 2025581 PMAQI
27th Jul 2025582 PMAQI
27th Jul 2025613 PMAQI
27th Jul 2025604 PMAQI
27th Jul 2025615 PMAQI
27th Jul 2025626 PMAQI
27th Jul 2025567 PMAQI
27th Jul 2025608 PMAQI
27th Jul 2025589 PMAQI
27th Jul 20255610 PMAQI
27th Jul 20255811 PMAQI
28th Jul 20255812 AMAQI
28th Jul 2025571 AMAQI
28th Jul 2025572 AMAQI
28th Jul 2025583 AMAQI
28th Jul 2025584 AMAQI
30°C26/36°C
28th Jul 2025585 AMAQI
28th Jul 2025586 AMAQI
28th Jul 2025647 AMAQI
28th Jul 2025698 AMAQI
28th Jul 2025769 AMAQI
28th Jul 20258410 AMAQI
28th Jul 20257211 AMAQI
28th Jul 20256712 PMAQI
28th Jul 2025731 PMAQI
28th Jul 2025692 PMAQI
28th Jul 2025683 PMAQI
28th Jul 2025664 PMAQI
28th Jul 2025685 PMAQI
28th Jul 2025606 PMAQI
28th Jul 2025647 PMAQI
28th Jul 2025628 PMAQI
28th Jul 2025739 PMAQI
28th Jul 20257710 PMAQI
28th Jul 20257011 PMAQI
29th Jul 20256612 AMAQI
29th Jul 2025581 AMAQI
29th Jul 2025602 AMAQI
29th Jul 2025613 AMAQI
29th Jul 2025624 AMAQI
31°C27/35°C
29th Jul 2025625 AMAQI
29th Jul 2025626 AMAQI
29th Jul 2025907 AMAQI
29th Jul 20251168 AMAQI
29th Jul 20251269 AMAQI
29th Jul 202511310 AMAQI
29th Jul 202510811 AMAQI
29th Jul 202510012 PMAQI
29th Jul 2025981 PMAQI
29th Jul 2025832 PMAQI
29th Jul 2025833 PMAQI
29th Jul 2025804 PMAQI
29th Jul 2025755 PMAQI
29th Jul 2025716 PMAQI
29th Jul 2025677 PMAQI
29th Jul 2025688 PMAQI
29th Jul 2025689 PMAQI
29th Jul 20256610 PMAQI
29th Jul 20256311 PMAQI
30th Jul 20256412 AMAQI
30th Jul 2025651 AMAQI
30th Jul 2025662 AMAQI
30th Jul 2025683 AMAQI
30th Jul 2025684 AMAQI
32°C28/36°C
30th Jul 2025685 AMAQI
30th Jul 2025686 AMAQI
30th Jul 2025707 AMAQI
30th Jul 2025758 AMAQI
30th Jul 2025899 AMAQI
30th Jul 20258410 AMAQI
30th Jul 20257811 AMAQI
30th Jul 20257612 PMAQI
30th Jul 2025841 PMAQI
30th Jul 2025902 PMAQI
30th Jul 2025873 PMAQI
30th Jul 2025824 PMAQI
30th Jul 2025705 PMAQI
30th Jul 2025646 PMAQI
30th Jul 2025667 PMAQI
30th Jul 2025588 PMAQI
30th Jul 2025589 PMAQI
30th Jul 20255510 PMAQI
30th Jul 20255611 PMAQI
31st Jul 20255712 AMAQI
31st Jul 2025461 AMAQI
31st Jul 2025662 AMAQI
31st Jul 2025673 AMAQI
31st Jul 2025674 AMAQI
32°C28/37°C
31st Jul 2025675 AMAQI
31st Jul 2025676 AMAQI
31st Jul 2025677 AMAQI
31st Jul 2025678 AMAQI
31st Jul 2025629 AMAQI
31st Jul 20256510 AMAQI
31st Jul 20256711 AMAQI
31st Jul 20255912 PMAQI
31st Jul 2025591 PMAQI
31st Jul 2025622 PMAQI
31st Jul 2025613 PMAQI
31st Jul 2025604 PMAQI
31st Jul 2025615 PMAQI
31st Jul 2025576 PMAQI
31st Jul 2025587 PMAQI
31st Jul 2025608 PMAQI
31st Jul 2025619 PMAQI
31st Jul 20256010 PMAQI
31st Jul 20256211 PMAQI
1st Aug 20255512 AMAQI
1st Aug 2025561 AMAQI
1st Aug 2025532 AMAQI
1st Aug 2025523 AMAQI
1st Aug 2025524 AMAQI
32°C29/36°C
1st Aug 2025535 AMAQI
1st Aug 2025546 AMAQI
1st Aug 2025627 AMAQI
1st Aug 2025628 AMAQI
1st Aug 2025599 AMAQI
1st Aug 20255710 AMAQI
1st Aug 20255311 AMAQI
1st Aug 20255112 PMAQI
1st Aug 2025451 PMAQI
1st Aug 2025532 PMAQI
1st Aug 2025423 PMAQI
1st Aug 2025484 PMAQI
1st Aug 2025565 PMAQI
1st Aug 2025506 PMAQI
1st Aug 2025527 PMAQI
1st Aug 2025498 PMAQI
1st Aug 2025549 PMAQI
1st Aug 20255610 PMAQI
1st Aug 20255411 PMAQI
2nd Aug 20255412 AMAQI
2nd Aug 2025561 AMAQI
2nd Aug 2025552 AMAQI
2nd Aug 2025553 AMAQI
2nd Aug 2025564 AMAQI
28°C26/31°C
2nd Aug 2025565 AMAQI
2nd Aug 2025556 AMAQI
2nd Aug 2025457 AMAQI
2nd Aug 2025508 AMAQI
2nd Aug 2025429 AMAQI
2nd Aug 20255510 AMAQI
2nd Aug 20255111 AMAQI
2nd Aug 20255212 PMAQI
2nd Aug 2025441 PMAQI
2nd Aug 2025462 PMAQI
2nd Aug 2025523 PMAQI
2nd Aug 2025564 PMAQI
2nd Aug 2025615 PMAQI
2nd Aug 2025626 PMAQI
2nd Aug 2025567 PMAQI
2nd Aug 2025588 PMAQI
2nd Aug 2025619 PMAQI
2nd Aug 20256010 PMAQI
2nd Aug 20255811 PMAQI
3rd Aug 20255612 AMAQI
3rd Aug 2025561 AMAQI
3rd Aug 2025552 AMAQI
3rd Aug 2025563 AMAQI
3rd Aug 2025554 AMAQI
31°C26/37°C
3rd Aug 2025555 AMAQI
5 AM3rd Aug 2025556 AMAQI
3rd Aug 2025547 AMAQI
3rd Aug 2025608 AMAQI
3rd Aug 2025689 AMAQI
3rd Aug 20256710 AMAQI
3rd Aug 20255811 AMAQI
11 AM3rd Aug 20257312 PMAQI
3rd Aug 2025521 PMAQI
3rd Aug 2025562 PMAQI
3rd Aug 2025553 PMAQI
3rd Aug 2025544 PMAQI
3rd Aug 2025485 PMAQI
6 PM
11 PM
4 AM
--°C/°C
Day time
Avg. Highest Time
9 AM - 6 PM
63AQI
10 hours / Day
300 hours / Month
Avg. Lowest Time
5 AM - 6 PM
62AQI
14 hours / Day
420 hours / Month
In the last 30 days, during the daytime, the highest AQI was between 9 AM to 6 PM (Avg. 63), while the lowest AQI was between 5 AM to 6 PM (Avg. 62).
Night time
Avg. Highest Time
12 AM - 4 AM
60AQI
5 hours / Day
150 hours / Month
Avg. Lowest Time
7 PM - 11 PM
57AQI
5 hours / Day
150 hours / Month
In the last 30 days, during the daytime, the highest AQI was between 12 AM to 4 AM (Avg. 60), while the lowest AQI was between 7 PM to 11 PM (Avg. 57).
2025 Days Vs Air Quality
Ha Noi Hong Ha, Hanoi, Ha Noi, Vietnam
2025
2%
5
70%
149
25%
53
3%
7
Total number of days with different AQI categories in last 215 days in 2025 (150 days remaining)
Good
5 DaysModerate
149 DaysPoor
53 DaysUnhealthy
7 DaysSevere
0 DaysHazardous
0 DaysUnder WHO’s Safe Air Quality Limits: 2%
Health Risk Level:
Extreme
In 2025, 2% of 215 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
Ha Noi Hong Ha, 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
134AQI
134AQI
2nd January 2025
153AQI
153AQI
3rd January 2025
123AQI
123AQI
4th January 2025
108AQI
108AQI
5th January 2025
113AQI
113AQI
6th January 2025
113AQI
113AQI
7th January 2025
120AQI
120AQI
8th January 2025
118AQI
118AQI
9th January 2025
119AQI
119AQI
10th January 2025
90AQI
90AQI
11th January 2025
97AQI
97AQI
12th January 2025
112AQI
112AQI
13th January 2025
139AQI
139AQI
14th January 2025
140AQI
140AQI
15th January 2025
150AQI
150AQI
16th January 2025
143AQI
143AQI
17th January 2025
150AQI
150AQI
18th January 2025
162AQI
162AQI
19th January 2025
157AQI
157AQI
20th January 2025
175AQI
175AQI
21st January 2025
161AQI
161AQI
22nd January 2025
161AQI
161AQI
23rd January 2025
132AQI
132AQI
24th January 2025
137AQI
137AQI
25th January 2025
101AQI
101AQI
26th January 2025
70AQI
70AQI
27th January 2025
89AQI
89AQI
28th January 2025
77AQI
77AQI
29th January 2025
118AQI
118AQI
30th January 2025
104AQI
104AQI
31st January 2025
87AQI
87AQI
1st February 2025
76AQI
76AQI
2nd February 2025
66AQI
66AQI
3rd February 2025
52AQI
52AQI
4th February 2025
67AQI
67AQI
5th February 2025
95AQI
95AQI
6th February 2025
100AQI
100AQI
7th February 2025
54AQI
54AQI
8th February 2025
65AQI
65AQI
9th February 2025
83AQI
83AQI
10th February 2025
135AQI
135AQI
11th February 2025
146AQI
146AQI
12th February 2025
160AQI
160AQI
13th February 2025
136AQI
136AQI
14th February 2025
134AQI
134AQI
15th February 2025
138AQI
138AQI
16th February 2025
76AQI
76AQI
17th February 2025
104AQI
104AQI
18th February 2025
65AQI
65AQI
19th February 2025
86AQI
86AQI
20th February 2025
129AQI
129AQI
21st February 2025
106AQI
106AQI
22nd February 2025
129AQI
129AQI
23rd February 2025
65AQI
65AQI
24th February 2025
74AQI
74AQI
25th February 2025
92AQI
92AQI
26th February 2025
80AQI
80AQI
27th February 2025
138AQI
138AQI
28th February 2025
102AQI
102AQI
1st March 2025
106AQI
106AQI
2nd March 2025
82AQI
82AQI
3rd March 2025
85AQI
85AQI
4th March 2025
84AQI
84AQI
5th March 2025
91AQI
91AQI
6th March 2025
60AQI
60AQI
7th March 2025
69AQI
69AQI
8th March 2025
88AQI
88AQI
9th March 2025
127AQI
127AQI
10th March 2025
137AQI
137AQI
11th March 2025
121AQI
121AQI
12th March 2025
89AQI
89AQI
13th March 2025
80AQI
80AQI
14th March 2025
82AQI
82AQI
15th March 2025
77AQI
77AQI
16th March 2025
58AQI
58AQI
17th March 2025
78AQI
78AQI
18th March 2025
72AQI
72AQI
19th March 2025
75AQI
75AQI
20th March 2025
83AQI
83AQI
21st March 2025
121AQI
121AQI
22nd March 2025
118AQI
118AQI
23rd March 2025
127AQI
127AQI
24th March 2025
136AQI
136AQI
25th March 2025
137AQI
137AQI
26th March 2025
118AQI
118AQI
27th March 2025
110AQI
110AQI
28th March 2025
107AQI
107AQI
29th March 2025
83AQI
83AQI
30th March 2025
65AQI
65AQI
31st March 2025
71AQI
71AQI
1st April 2025
93AQI
93AQI
2nd April 2025
126AQI
126AQI
3rd April 2025
108AQI
108AQI
4th April 2025
103AQI
103AQI
5th April 2025
115AQI
115AQI
6th April 2025
136AQI
136AQI
7th April 2025
124AQI
124AQI
8th April 2025
122AQI
122AQI
9th April 2025
101AQI
101AQI
10th April 2025
98AQI
98AQI
11th April 2025
99AQI
99AQI
12th April 2025
107AQI
107AQI
13th April 2025
91AQI
91AQI
14th April 2025
97AQI
97AQI
15th April 2025
105AQI
105AQI
16th April 2025
107AQI
107AQI
17th April 2025
96AQI
96AQI
18th April 2025
100AQI
100AQI
19th April 2025
95AQI
95AQI
20th April 2025
84AQI
84AQI
21st April 2025
83AQI
83AQI
22nd April 2025
95AQI
95AQI
23rd April 2025
96AQI
96AQI
24th April 2025
89AQI
89AQI
25th April 2025
81AQI
81AQI
26th April 2025
83AQI
83AQI
27th April 2025
74AQI
74AQI
28th April 2025
70AQI
70AQI
29th April 2025
80AQI
80AQI
30th April 2025
78AQI
78AQI
1st May 2025
65AQI
65AQI
2nd May 2025
83AQI
83AQI
3rd May 2025
79AQI
79AQI
4th May 2025
77AQI
77AQI
5th May 2025
78AQI
78AQI
6th May 2025
74AQI
74AQI
7th May 2025
75AQI
75AQI
8th May 2025
78AQI
78AQI
9th May 2025
80AQI
80AQI
10th May 2025
81AQI
81AQI
11th May 2025
56AQI
56AQI
12th May 2025
69AQI
69AQI
13th May 2025
67AQI
67AQI
14th May 2025
63AQI
63AQI
15th May 2025
60AQI
60AQI
16th May 2025
60AQI
60AQI
17th May 2025
56AQI
56AQI
18th May 2025
55AQI
55AQI
19th May 2025
57AQI
57AQI
20th May 2025
58AQI
58AQI
21st May 2025
57AQI
57AQI
22nd May 2025
57AQI
57AQI
23rd May 2025
55AQI
55AQI
24th May 2025
54AQI
54AQI
25th May 2025
55AQI
55AQI
26th May 2025
58AQI
58AQI
27th May 2025
79AQI
79AQI
28th May 2025
74AQI
74AQI
29th May 2025
58AQI
58AQI
30th May 2025
56AQI
56AQI
31st May 2025
57AQI
57AQI
1st June 2025
51AQI
51AQI
2nd June 2025
53AQI
53AQI
3rd June 2025
54AQI
54AQI
4th June 2025
60AQI
60AQI
5th June 2025
71AQI
71AQI
6th June 2025
61AQI
61AQI
7th June 2025
60AQI
60AQI
8th June 2025
59AQI
59AQI
9th June 2025
64AQI
64AQI
10th June 2025
61AQI
61AQI
11th June 2025
64AQI
64AQI
12th June 2025
63AQI
63AQI
13th June 2025
59AQI
59AQI
14th June 2025
65AQI
65AQI
15th June 2025
82AQI
82AQI
16th June 2025
66AQI
66AQI
17th June 2025
65AQI
65AQI
18th June 2025
60AQI
60AQI
19th June 2025
67AQI
67AQI
20th June 2025
70AQI
70AQI
21st June 2025
62AQI
62AQI
22nd June 2025
55AQI
55AQI
23rd June 2025
60AQI
60AQI
24th June 2025
64AQI
64AQI
25th June 2025
57AQI
57AQI
26th June 2025
57AQI
57AQI
27th June 2025
59AQI
59AQI
28th June 2025
55AQI
55AQI
29th June 2025
56AQI
56AQI
30th June 2025
54AQI
54AQI
1st July 2025
47AQI
47AQI
2nd July 2025
44AQI
44AQI
3rd July 2025
54AQI
54AQI
4th July 2025
61AQI
61AQI
5th July 2025
60AQI
60AQI
6th July 2025
57AQI
57AQI
7th July 2025
64AQI
64AQI
8th July 2025
62AQI
62AQI
9th July 2025
69AQI
69AQI
10th July 2025
58AQI
58AQI
11th July 2025
56AQI
56AQI
12th July 2025
53AQI
53AQI
13th July 2025
56AQI
56AQI
14th July 2025
70AQI
70AQI
15th July 2025
80AQI
80AQI
16th July 2025
59AQI
59AQI
17th July 2025
57AQI
57AQI
18th July 2025
59AQI
59AQI
19th July 2025
70AQI
70AQI
20th July 2025
59AQI
59AQI
21st July 2025
56AQI
56AQI
22nd July 2025
39AQI
39AQI
23rd July 2025
42AQI
42AQI
24th July 2025
41AQI
41AQI
25th July 2025
56AQI
56AQI
26th July 2025
58AQI
58AQI
27th July 2025
56AQI
56AQI
28th July 2025
64AQI
64AQI
29th July 2025
75AQI
75AQI
30th July 2025
68AQI
68AQI
31st July 2025
61AQI
61AQI
1st August 2025
54AQI
54AQI
2nd August 2025
53AQI
53AQI
124AQI
98AQI
95AQI
98AQI
66AQI
61AQI
58AQI
54AQI
No. of days
Jan.Feb.Mar.Apr.MayJun.Jul.Aug.Sep.Oct.Nov.Dec.Total Days
202585AQI
6
19
6
16
11
1
19
12
19
11
31
30
5
26
2
5
149
53
7
Highest AQI recorded in
January124AQI
Lowest AQI recorded in
August54AQI
202448AQI
17
13
2
15
30
8
23
30
1
14
1
20
10
1
8
20
2
2
14
13
2
129
98
17
2
Highest AQI recorded in
December98AQI
Lowest AQI recorded in
March10AQI
202310AQI
29
15
30
20
30
26
15
25
15
3
1
18
13
226
14
Highest AQI recorded in
December46AQI
Lowest AQI recorded in
June2AQI
202218AQI
10
6
3
6
15
5
8
3
24
24
12
1
21
25
21
22
174
24
8
Highest AQI recorded in
March73AQI
Lowest AQI recorded in
July1AQI
Most & Least Polluted Years Over the Last 4 Years
Most Polluted Year Recorded
2025(Avg.)
85AQILeast Polluted Year Recorded
2023(Avg.)
10AQIHa Noi Hong Ha's annual 2025 AQI (85) shows an average percentage change of 407.9% (worsened AQI) compared to previous years: 2022 (18), 2023 (10), 2024 (48).
