Country Background
HistoryAQIPM2.5PM10COSO2NO2O3

Hanoi US Embassy, 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+

November Air Quality Analysis

Hanoi US Embassy, Hanoi, Ha Noi, Vietnam

2021
2022
2023
2024
2025
AQI
.
Days

AQI Trends: Highest and Lowest

Highest AQI recorded on
3rd Nov 2022
173AQI
Lowest AQI recorded on
30th Nov 2023
14AQI

Same Day Analysis (21st November ):
On this day, AQI across the 5 years varied significantly: 2025 ranks 2nd highest AQI at 93 of Moderate air quality, showing improvement over 2022 on the same day.

Download 2024 Annual Data

World Air Quality Report

Globe

Day & Night AQI Trend: 21st Nov - 22nd Nov 2025

Hanoi US Embassy, Hanoi, Ha Noi, Vietnam

AQI
Day
Night
.

6 AM21st Nov 2025

5 PM

5 AM22nd Nov 2025

Day time
Avg. Highest Time
9AM21st Nov

110AQI

Avg. Lowest Time
4PM21st Nov

59AQI

Night time
Avg. Highest Time
2AM22nd Nov

157AQI

Avg. Lowest Time
6PM21st Nov

68AQI

In the last 24 hours,

Hanoi US Embassy's AQI reached its highest point of 157 at 2 AM during the Night, while the lowest point, 59, was recorded at 4 PM during the Day between 21st Nov and 22nd Nov 2025.

Day & Night AQI Trend : Oct - Nov 2025

Hanoi US Embassy, Hanoi, Ha Noi, Vietnam

OctNov
23rd - 24th24th - 25th25th - 26th26th - 27th27th - 28th28th - 29th29th - 30th30th - 31st31st - 01st01st - 02nd02nd - 03rd03rd - 04th04th - 05th05th - 06th06th - 07th07th - 08th08th - 09th09th - 10th10th - 11th11th - 12th12th - 13th13th - 14th14th - 15th15th - 16th16th - 17th17th - 18th18th - 19th19th - 20th20th - 21st21st - 22nd22nd
Day
Night
23rd Oct 2025676 AMAQI
23rd Oct 2025677 AMAQI
23rd Oct 2025738 AMAQI
23rd Oct 2025589 AMAQI
23rd Oct 20256610 AMAQI
23rd Oct 20256511 AMAQI
23rd Oct 20256012 PMAQI
23rd Oct 2025591 PMAQI
23rd Oct 2025622 PMAQI
23rd Oct 2025613 PMAQI
23rd Oct 2025634 PMAQI
23rd Oct 2025625 PMAQI
23rd Oct 2025646 PMAQI
23rd Oct 2025697 PMAQI
23rd Oct 2025718 PMAQI
23rd Oct 2025739 PMAQI
23rd Oct 20257610 PMAQI
23rd Oct 20257911 PMAQI
24th Oct 20257512 AMAQI
24th Oct 2025721 AMAQI
24th Oct 2025712 AMAQI
24th Oct 2025723 AMAQI
24th Oct 2025774 AMAQI
24th Oct 2025725 AMAQI

19°C17/20°C

24th Oct 2025816 AMAQI
24th Oct 2025927 AMAQI
24th Oct 2025968 AMAQI
24th Oct 2025999 AMAQI
24th Oct 20258110 AMAQI
24th Oct 20257411 AMAQI
24th Oct 20256712 PMAQI
24th Oct 2025651 PMAQI
24th Oct 2025612 PMAQI
24th Oct 2025653 PMAQI
24th Oct 2025654 PMAQI
24th Oct 2025675 PMAQI
24th Oct 2025696 PMAQI
24th Oct 2025697 PMAQI
24th Oct 2025708 PMAQI
24th Oct 2025749 PMAQI
24th Oct 20257010 PMAQI
24th Oct 20258511 PMAQI
25th Oct 202510012 AMAQI
25th Oct 20251081 AMAQI
25th Oct 20251062 AMAQI
25th Oct 20251013 AMAQI
25th Oct 2025864 AMAQI
25th Oct 2025945 AMAQI

20°C18/22°C

25th Oct 2025956 AMAQI
25th Oct 2025917 AMAQI
25th Oct 2025898 AMAQI
25th Oct 2025819 AMAQI
25th Oct 20258210 AMAQI
25th Oct 20259511 AMAQI
25th Oct 20259212 PMAQI
25th Oct 2025901 PMAQI
25th Oct 2025932 PMAQI
25th Oct 2025913 PMAQI
25th Oct 2025904 PMAQI
25th Oct 2025925 PMAQI
25th Oct 20251026 PMAQI
25th Oct 20251037 PMAQI
25th Oct 2025878 PMAQI
25th Oct 20251079 PMAQI
25th Oct 202512010 PMAQI
25th Oct 202512811 PMAQI
26th Oct 202512612 AMAQI
26th Oct 20251271 AMAQI
26th Oct 20251222 AMAQI
26th Oct 20251163 AMAQI
26th Oct 20251134 AMAQI
26th Oct 20251105 AMAQI

22°C18/27°C

26th Oct 20251166 AMAQI
26th Oct 20251207 AMAQI
26th Oct 20251028 AMAQI
26th Oct 2025999 AMAQI
26th Oct 20259810 AMAQI
26th Oct 20258211 AMAQI
26th Oct 20257912 PMAQI
26th Oct 2025791 PMAQI
26th Oct 2025732 PMAQI
26th Oct 2025733 PMAQI
26th Oct 2025694 PMAQI
26th Oct 2025725 PMAQI
26th Oct 2025766 PMAQI
26th Oct 2025827 PMAQI
26th Oct 2025918 PMAQI
26th Oct 20251069 PMAQI
26th Oct 202511110 PMAQI
26th Oct 20259011 PMAQI
27th Oct 20258712 AMAQI
27th Oct 2025791 AMAQI
27th Oct 2025722 AMAQI
27th Oct 2025653 AMAQI
27th Oct 2025624 AMAQI
27th Oct 2025675 AMAQI

24°C22/28°C

27th Oct 2025646 AMAQI
27th Oct 2025667 AMAQI
27th Oct 2025658 AMAQI
27th Oct 2025659 AMAQI
27th Oct 20256510 AMAQI
27th Oct 20256411 AMAQI
27th Oct 20256212 PMAQI
27th Oct 2025661 PMAQI
27th Oct 2025622 PMAQI
27th Oct 2025593 PMAQI
27th Oct 2025604 PMAQI
27th Oct 2025605 PMAQI
27th Oct 2025606 PMAQI
27th Oct 2025617 PMAQI
27th Oct 2025728 PMAQI
27th Oct 2025849 PMAQI
27th Oct 20259110 PMAQI
27th Oct 20259411 PMAQI
28th Oct 202510012 AMAQI
28th Oct 20251161 AMAQI
28th Oct 20251372 AMAQI
28th Oct 20251273 AMAQI
28th Oct 20251414 AMAQI
28th Oct 20251195 AMAQI

24°C22/27°C

28th Oct 20251076 AMAQI
28th Oct 20251017 AMAQI
28th Oct 2025878 AMAQI
28th Oct 2025869 AMAQI
28th Oct 20258310 AMAQI
28th Oct 20257711 AMAQI
28th Oct 20257812 PMAQI
28th Oct 2025731 PMAQI
28th Oct 2025702 PMAQI
28th Oct 2025673 PMAQI
28th Oct 2025674 PMAQI
28th Oct 2025655 PMAQI
28th Oct 2025676 PMAQI
28th Oct 2025727 PMAQI
28th Oct 2025738 PMAQI
28th Oct 2025739 PMAQI
28th Oct 20258710 PMAQI
28th Oct 202512011 PMAQI
29th Oct 202514412 AMAQI
29th Oct 20251361 AMAQI
29th Oct 20251382 AMAQI
29th Oct 20251353 AMAQI
29th Oct 20251444 AMAQI
29th Oct 20251505 AMAQI

24°C22/28°C

29th Oct 20251426 AMAQI
29th Oct 20251337 AMAQI
29th Oct 20251248 AMAQI
29th Oct 20251229 AMAQI
29th Oct 202511410 AMAQI
29th Oct 202510911 AMAQI
29th Oct 20259812 PMAQI
29th Oct 2025921 PMAQI
29th Oct 2025872 PMAQI
29th Oct 2025833 PMAQI
29th Oct 2025854 PMAQI
29th Oct 2025975 PMAQI
29th Oct 20251066 PMAQI
29th Oct 20251267 PMAQI
29th Oct 20251258 PMAQI
29th Oct 20251249 PMAQI
29th Oct 202513710 PMAQI
29th Oct 202516111 PMAQI
30th Oct 202515812 AMAQI
30th Oct 20251541 AMAQI
30th Oct 20251392 AMAQI
30th Oct 20251333 AMAQI
30th Oct 20251394 AMAQI
30th Oct 20251375 AMAQI

24°C22/28°C

30th Oct 20251426 AMAQI
30th Oct 20251437 AMAQI
30th Oct 20251148 AMAQI
30th Oct 20251059 AMAQI
30th Oct 202510510 AMAQI
30th Oct 20259511 AMAQI
30th Oct 20258912 PMAQI
30th Oct 2025921 PMAQI
30th Oct 2025822 PMAQI
30th Oct 2025793 PMAQI
30th Oct 2025764 PMAQI
30th Oct 2025785 PMAQI
30th Oct 2025726 PMAQI
30th Oct 2025797 PMAQI
30th Oct 2025758 PMAQI
30th Oct 2025839 PMAQI
30th Oct 20257010 PMAQI
30th Oct 20256811 PMAQI
31st Oct 20256212 AMAQI
31st Oct 2025681 AMAQI
31st Oct 2025672 AMAQI
31st Oct 2025583 AMAQI
31st Oct 2025584 AMAQI
31st Oct 2025605 AMAQI

22°C22/22°C

31st Oct 2025626 AMAQI
31st Oct 2025687 AMAQI
31st Oct 2025628 AMAQI
31st Oct 2025649 AMAQI
31st Oct 20256010 AMAQI
31st Oct 20255611 AMAQI
31st Oct 20255012 PMAQI
31st Oct 2025411 PMAQI
31st Oct 2025462 PMAQI
31st Oct 2025393 PMAQI
31st Oct 2025464 PMAQI
31st Oct 2025485 PMAQI
31st Oct 2025496 PMAQI
31st Oct 2025507 PMAQI
31st Oct 2025528 PMAQI
31st Oct 2025559 PMAQI
31st Oct 20255510 PMAQI
31st Oct 20255611 PMAQI
1st Nov 20255212 AMAQI
1st Nov 2025471 AMAQI
1st Nov 2025422 AMAQI
1st Nov 2025353 AMAQI
1st Nov 2025284 AMAQI
1st Nov 2025245 AMAQI

21°C20/21°C

1st Nov 2025256 AMAQI
1st Nov 2025247 AMAQI
1st Nov 2025218 AMAQI
1st Nov 2025319 AMAQI
1st Nov 20254010 AMAQI
1st Nov 20254411 AMAQI
1st Nov 20253812 PMAQI
1st Nov 2025411 PMAQI
1st Nov 2025522 PMAQI
1st Nov 2025543 PMAQI
1st Nov 2025554 PMAQI
1st Nov 2025535 PMAQI
1st Nov 2025496 PMAQI
1st Nov 2025477 PMAQI
1st Nov 2025468 PMAQI
1st Nov 2025519 PMAQI
1st Nov 20255910 PMAQI
1st Nov 20258811 PMAQI
2nd Nov 20255812 AMAQI
2nd Nov 2025621 AMAQI
2nd Nov 2025632 AMAQI
2nd Nov 2025553 AMAQI
2nd Nov 2025464 AMAQI
2nd Nov 2025525 AMAQI

20°C19/20°C

2nd Nov 2025606 AMAQI
2nd Nov 2025687 AMAQI
2nd Nov 2025658 AMAQI
2nd Nov 2025599 AMAQI
2nd Nov 20255110 AMAQI
2nd Nov 20255111 AMAQI
2nd Nov 20255612 PMAQI
2nd Nov 2025581 PMAQI
2nd Nov 2025582 PMAQI
2nd Nov 2025613 PMAQI
2nd Nov 2025734 PMAQI
2nd Nov 2025575 PMAQI
2nd Nov 2025606 PMAQI
2nd Nov 2025677 PMAQI
2nd Nov 2025698 PMAQI
2nd Nov 2025699 PMAQI
2nd Nov 20257210 PMAQI
2nd Nov 20256211 PMAQI
3rd Nov 20255612 AMAQI
3rd Nov 2025551 AMAQI
3rd Nov 2025542 AMAQI
3rd Nov 2025483 AMAQI
3rd Nov 2025444 AMAQI
3rd Nov 2025395 AMAQI

19°C19/20°C

3rd Nov 2025396 AMAQI
3rd Nov 2025377 AMAQI
3rd Nov 2025388 AMAQI
3rd Nov 2025419 AMAQI
3rd Nov 20254910 AMAQI
3rd Nov 20255011 AMAQI
3rd Nov 20255012 PMAQI
3rd Nov 2025481 PMAQI
3rd Nov 2025482 PMAQI
3rd Nov 2025423 PMAQI
3rd Nov 2025484 PMAQI
3rd Nov 2025655 PMAQI
3rd Nov 2025426 PMAQI
3rd Nov 2025457 PMAQI
3rd Nov 2025518 PMAQI
3rd Nov 2025519 PMAQI
3rd Nov 20255110 PMAQI
3rd Nov 20254211 PMAQI
4th Nov 20254012 AMAQI
4th Nov 2025341 AMAQI
4th Nov 2025342 AMAQI
4th Nov 2025373 AMAQI
4th Nov 2025354 AMAQI
4th Nov 2025405 AMAQI

18°C17/19°C

4th Nov 2025406 AMAQI
4th Nov 2025357 AMAQI
4th Nov 2025448 AMAQI
4th Nov 2025519 AMAQI
4th Nov 20255410 AMAQI
4th Nov 20255411 AMAQI
4th Nov 20255212 PMAQI
4th Nov 2025541 PMAQI
4th Nov 2025532 PMAQI
4th Nov 2025523 PMAQI
4th Nov 2025454 PMAQI
4th Nov 2025465 PMAQI
4th Nov 2025546 PMAQI
4th Nov 2025597 PMAQI
4th Nov 2025608 PMAQI
4th Nov 2025639 PMAQI
4th Nov 20256810 PMAQI
4th Nov 20256811 PMAQI
5th Nov 20256512 AMAQI
5th Nov 2025601 AMAQI
5th Nov 2025562 AMAQI
5th Nov 2025543 AMAQI
5th Nov 2025534 AMAQI
5th Nov 2025505 AMAQI

18°C17/18°C

5th Nov 2025526 AMAQI
5th Nov 2025497 AMAQI
5th Nov 2025488 AMAQI
5th Nov 2025519 AMAQI
5th Nov 20255610 AMAQI
5th Nov 20255811 AMAQI
5th Nov 20255912 PMAQI
5th Nov 2025631 PMAQI
5th Nov 2025642 PMAQI
5th Nov 2025673 PMAQI
5th Nov 2025644 PMAQI
5th Nov 2025705 PMAQI
5th Nov 2025706 PMAQI
5th Nov 2025787 PMAQI
5th Nov 2025818 PMAQI
5th Nov 2025989 PMAQI
5th Nov 20259910 PMAQI
5th Nov 20259011 PMAQI
6th Nov 20258812 AMAQI
6th Nov 2025941 AMAQI
6th Nov 20251122 AMAQI
6th Nov 20251033 AMAQI
6th Nov 20251014 AMAQI
6th Nov 20251025 AMAQI

20°C18/23°C

6th Nov 2025876 AMAQI
6th Nov 2025767 AMAQI
6th Nov 2025768 AMAQI
6th Nov 2025879 AMAQI
6th Nov 20259710 AMAQI
6th Nov 20258011 AMAQI
6th Nov 20259412 PMAQI
6th Nov 2025981 PMAQI
6th Nov 2025972 PMAQI
6th Nov 2025943 PMAQI
6th Nov 20251054 PMAQI
6th Nov 2025875 PMAQI
6th Nov 2025816 PMAQI
6th Nov 2025937 PMAQI
6th Nov 20251108 PMAQI
6th Nov 20251319 PMAQI
6th Nov 202515210 PMAQI
6th Nov 202515211 PMAQI
7th Nov 202514812 AMAQI
7th Nov 20251471 AMAQI
7th Nov 20251432 AMAQI
7th Nov 20251423 AMAQI
7th Nov 20251514 AMAQI
7th Nov 20251545 AMAQI

22°C20/24°C

7th Nov 20251536 AMAQI
7th Nov 20251557 AMAQI
7th Nov 20251528 AMAQI
7th Nov 20251399 AMAQI
7th Nov 202513810 AMAQI
7th Nov 202512611 AMAQI
7th Nov 202510912 PMAQI
7th Nov 2025881 PMAQI
7th Nov 2025802 PMAQI
7th Nov 2025753 PMAQI
7th Nov 2025874 PMAQI
7th Nov 20251005 PMAQI
7th Nov 20251156 PMAQI
7th Nov 20251197 PMAQI
7th Nov 20251228 PMAQI
7th Nov 20251079 PMAQI
7th Nov 20259410 PMAQI
7th Nov 20259011 PMAQI
8th Nov 20258712 AMAQI
8th Nov 2025861 AMAQI
8th Nov 2025822 AMAQI
8th Nov 2025813 AMAQI
8th Nov 2025784 AMAQI
8th Nov 2025625 AMAQI

23°C23/23°C

8th Nov 2025666 AMAQI
8th Nov 2025667 AMAQI
8th Nov 2025648 AMAQI
8th Nov 2025669 AMAQI
8th Nov 20257010 AMAQI
8th Nov 20257211 AMAQI
8th Nov 20258012 PMAQI
8th Nov 2025751 PMAQI
8th Nov 2025702 PMAQI
8th Nov 2025643 PMAQI
8th Nov 2025644 PMAQI
8th Nov 2025585 PMAQI
8th Nov 2025546 PMAQI
8th Nov 2025577 PMAQI
8th Nov 2025618 PMAQI
8th Nov 2025609 PMAQI
8th Nov 20257610 PMAQI
8th Nov 20257911 PMAQI
9th Nov 20258212 AMAQI
9th Nov 2025811 AMAQI
9th Nov 2025842 AMAQI
9th Nov 2025853 AMAQI
9th Nov 2025844 AMAQI
9th Nov 2025855 AMAQI

24°C22/28°C

9th Nov 2025876 AMAQI
9th Nov 2025907 AMAQI
9th Nov 2025968 AMAQI
9th Nov 2025939 AMAQI
9th Nov 20259310 AMAQI
9th Nov 20259511 AMAQI
9th Nov 20259312 PMAQI
9th Nov 2025921 PMAQI
9th Nov 2025922 PMAQI
9th Nov 2025863 PMAQI
9th Nov 2025754 PMAQI
9th Nov 2025755 PMAQI
9th Nov 2025776 PMAQI
9th Nov 2025737 PMAQI
9th Nov 2025678 PMAQI
9th Nov 2025679 PMAQI
9th Nov 20256710 PMAQI
9th Nov 20256611 PMAQI
10th Nov 20257012 AMAQI
10th Nov 2025741 AMAQI
10th Nov 2025742 AMAQI
10th Nov 2025763 AMAQI
10th Nov 2025834 AMAQI
10th Nov 2025805 AMAQI

26°C24/29°C

10th Nov 2025806 AMAQI
10th Nov 2025827 AMAQI
10th Nov 2025828 AMAQI
10th Nov 2025709 AMAQI
10th Nov 20259210 AMAQI
10th Nov 20258711 AMAQI
10th Nov 20257812 PMAQI
10th Nov 2025691 PMAQI
10th Nov 2025682 PMAQI
10th Nov 2025643 PMAQI
10th Nov 2025544 PMAQI
10th Nov 2025555 PMAQI
10th Nov 2025556 PMAQI
10th Nov 2025547 PMAQI
10th Nov 2025538 PMAQI
10th Nov 2025549 PMAQI
10th Nov 20255410 PMAQI
10th Nov 20255411 PMAQI
11th Nov 20255812 AMAQI
11th Nov 2025571 AMAQI
11th Nov 2025572 AMAQI
11th Nov 2025573 AMAQI
11th Nov 2025564 AMAQI
11th Nov 2025555 AMAQI

25°C23/26°C

11th Nov 2025546 AMAQI
11th Nov 2025537 AMAQI
11th Nov 2025538 AMAQI
11th Nov 2025509 AMAQI
11th Nov 20255210 AMAQI
11th Nov 20256011 AMAQI
11th Nov 20256512 PMAQI
11th Nov 2025561 PMAQI
11th Nov 2025712 PMAQI
11th Nov 2025633 PMAQI
11th Nov 2025514 PMAQI
11th Nov 2025545 PMAQI
11th Nov 2025596 PMAQI
11th Nov 2025707 PMAQI
11th Nov 2025748 PMAQI
11th Nov 2025929 PMAQI
11th Nov 20259510 PMAQI
11th Nov 20258711 PMAQI
12th Nov 20257812 AMAQI
12th Nov 2025691 AMAQI
12th Nov 2025662 AMAQI
12th Nov 2025603 AMAQI
12th Nov 2025554 AMAQI
12th Nov 2025525 AMAQI

21°C21/21°C

12th Nov 2025526 AMAQI
12th Nov 2025527 AMAQI
12th Nov 2025548 AMAQI
12th Nov 2025569 AMAQI
12th Nov 20255610 AMAQI
12th Nov 20255611 AMAQI
12th Nov 20255612 PMAQI
12th Nov 2025551 PMAQI
12th Nov 2025562 PMAQI
12th Nov 2025593 PMAQI
12th Nov 2025684 PMAQI
12th Nov 2025925 PMAQI
12th Nov 2025966 PMAQI
12th Nov 2025947 PMAQI
12th Nov 2025948 PMAQI
12th Nov 20251139 PMAQI
12th Nov 202511610 PMAQI
12th Nov 202511511 PMAQI
13th Nov 202511812 AMAQI
13th Nov 20251081 AMAQI
13th Nov 2025942 AMAQI
13th Nov 2025733 AMAQI
13th Nov 2025704 AMAQI
13th Nov 2025715 AMAQI

23°C21/26°C

13th Nov 2025696 AMAQI
13th Nov 2025677 AMAQI
13th Nov 2025648 AMAQI
13th Nov 2025619 AMAQI
13th Nov 20256410 AMAQI
13th Nov 20255711 AMAQI
13th Nov 20255712 PMAQI
13th Nov 2025581 PMAQI
13th Nov 2025552 PMAQI
13th Nov 2025563 PMAQI
13th Nov 2025584 PMAQI
13th Nov 2025595 PMAQI
13th Nov 2025646 PMAQI
13th Nov 2025757 PMAQI
13th Nov 2025848 PMAQI
13th Nov 20251009 PMAQI
13th Nov 202512810 PMAQI
13th Nov 202512511 PMAQI
14th Nov 202512512 AMAQI
14th Nov 20251631 AMAQI
14th Nov 20251762 AMAQI
14th Nov 20251713 AMAQI
14th Nov 20251704 AMAQI
14th Nov 20251625 AMAQI

23°C21/28°C

14th Nov 20251506 AMAQI
14th Nov 20251487 AMAQI
14th Nov 20251578 AMAQI
14th Nov 20251499 AMAQI
14th Nov 202513210 AMAQI
14th Nov 20258911 AMAQI
14th Nov 20258212 PMAQI
14th Nov 2025761 PMAQI
14th Nov 2025682 PMAQI
14th Nov 2025663 PMAQI
14th Nov 2025574 PMAQI
14th Nov 2025565 PMAQI
14th Nov 2025616 PMAQI
14th Nov 2025717 PMAQI
14th Nov 2025758 PMAQI
14th Nov 2025829 PMAQI
14th Nov 20258510 PMAQI
14th Nov 20259111 PMAQI
15th Nov 20259312 AMAQI
15th Nov 2025961 AMAQI
15th Nov 20251162 AMAQI
15th Nov 20251593 AMAQI
15th Nov 20251644 AMAQI
15th Nov 20251675 AMAQI

22°C18/26°C

15th Nov 20251456 AMAQI
15th Nov 20251297 AMAQI
15th Nov 20251288 AMAQI
15th Nov 20251169 AMAQI
15th Nov 202513410 AMAQI
15th Nov 202515411 AMAQI
15th Nov 202512112 PMAQI
15th Nov 2025971 PMAQI
15th Nov 2025772 PMAQI
15th Nov 2025743 PMAQI
15th Nov 2025694 PMAQI
15th Nov 2025685 PMAQI
15th Nov 2025806 PMAQI
15th Nov 2025907 PMAQI
15th Nov 20251008 PMAQI
15th Nov 20251349 PMAQI
15th Nov 202515210 PMAQI
15th Nov 202516411 PMAQI
16th Nov 202517812 AMAQI
16th Nov 20251811 AMAQI
16th Nov 20251832 AMAQI
16th Nov 20251903 AMAQI
16th Nov 20251764 AMAQI
16th Nov 20251595 AMAQI

22°C18/27°C

16th Nov 20251566 AMAQI
16th Nov 20251697 AMAQI
16th Nov 20251668 AMAQI
16th Nov 20251609 AMAQI
16th Nov 202515410 AMAQI
16th Nov 202514911 AMAQI
16th Nov 202513612 PMAQI
16th Nov 20251351 PMAQI
16th Nov 20251302 PMAQI
16th Nov 20251183 PMAQI
16th Nov 20251194 PMAQI
16th Nov 20251175 PMAQI
16th Nov 20251176 PMAQI
16th Nov 20251137 PMAQI
16th Nov 20251178 PMAQI
16th Nov 20251289 PMAQI
16th Nov 202514510 PMAQI
16th Nov 202515611 PMAQI
17th Nov 202516012 AMAQI
17th Nov 20251721 AMAQI
17th Nov 20251732 AMAQI
17th Nov 20251793 AMAQI
17th Nov 20251674 AMAQI
17th Nov 20251605 AMAQI

22°C20/24°C

17th Nov 20251636 AMAQI
17th Nov 20251657 AMAQI
17th Nov 20251658 AMAQI
17th Nov 20251699 AMAQI
17th Nov 202516110 AMAQI
17th Nov 202516211 AMAQI
17th Nov 202515712 PMAQI
17th Nov 20251461 PMAQI
17th Nov 20251492 PMAQI
17th Nov 20251613 PMAQI
17th Nov 20251564 PMAQI
17th Nov 20251565 PMAQI
17th Nov 20251626 PMAQI
17th Nov 20251677 PMAQI
17th Nov 20251658 PMAQI
17th Nov 20251579 PMAQI
17th Nov 202515510 PMAQI
17th Nov 202515411 PMAQI
18th Nov 202515012 AMAQI
18th Nov 20251421 AMAQI
18th Nov 20251352 AMAQI
18th Nov 20251223 AMAQI
18th Nov 20251084 AMAQI
18th Nov 20251075 AMAQI

23°C21/25°C

18th Nov 20251046 AMAQI
18th Nov 2025997 AMAQI
18th Nov 2025968 AMAQI
18th Nov 2025949 AMAQI
18th Nov 20259010 AMAQI
18th Nov 20258611 AMAQI
18th Nov 20258812 PMAQI
18th Nov 2025781 PMAQI
18th Nov 2025642 PMAQI
18th Nov 2025593 PMAQI
18th Nov 2025584 PMAQI
18th Nov 2025495 PMAQI
18th Nov 2025526 PMAQI
18th Nov 2025527 PMAQI
18th Nov 2025528 PMAQI
18th Nov 2025409 PMAQI
18th Nov 20253610 PMAQI
18th Nov 20253011 PMAQI
19th Nov 20253012 AMAQI
19th Nov 2025361 AMAQI
19th Nov 2025502 AMAQI
19th Nov 2025513 AMAQI
19th Nov 2025524 AMAQI
19th Nov 2025515 AMAQI

17°C13/20°C

19th Nov 2025446 AMAQI
19th Nov 2025407 AMAQI
19th Nov 2025448 AMAQI
19th Nov 2025519 AMAQI
19th Nov 20255110 AMAQI
19th Nov 20255311 AMAQI
19th Nov 20254412 PMAQI
19th Nov 2025471 PMAQI
19th Nov 2025502 PMAQI
19th Nov 2025513 PMAQI
19th Nov 2025504 PMAQI
19th Nov 2025475 PMAQI
19th Nov 2025466 PMAQI
19th Nov 2025547 PMAQI
19th Nov 2025598 PMAQI
19th Nov 2025759 PMAQI
19th Nov 20256110 PMAQI
19th Nov 20256211 PMAQI
20th Nov 20256312 AMAQI
20th Nov 2025641 AMAQI
20th Nov 2025602 AMAQI
20th Nov 2025613 AMAQI
20th Nov 2025604 AMAQI
20th Nov 2025645 AMAQI

14°C13/15°C

20th Nov 2025646 AMAQI
20th Nov 2025677 AMAQI
20th Nov 2025708 AMAQI
20th Nov 2025739 AMAQI
20th Nov 20257910 AMAQI
20th Nov 20257211 AMAQI
20th Nov 20256712 PMAQI
20th Nov 2025641 PMAQI
20th Nov 2025692 PMAQI
20th Nov 2025653 PMAQI
20th Nov 2025684 PMAQI
20th Nov 2025725 PMAQI
20th Nov 2025696 PMAQI
20th Nov 2025717 PMAQI
20th Nov 2025848 PMAQI
20th Nov 20251109 PMAQI
20th Nov 202511910 PMAQI
20th Nov 202513011 PMAQI
21st Nov 202513312 AMAQI
21st Nov 2025971 AMAQI
21st Nov 20251022 AMAQI
21st Nov 2025883 AMAQI
21st Nov 2025814 AMAQI
21st Nov 2025765 AMAQI

17°C13/22°C

21st Nov 2025836 AMAQI
21st Nov 2025997 AMAQI
21st Nov 2025978 AMAQI
21st Nov 20251109 AMAQI
21st Nov 202510910 AMAQI
21st Nov 20259911 AMAQI
21st Nov 20259012 PMAQI
21st Nov 2025761 PMAQI
21st Nov 2025702 PMAQI
21st Nov 2025653 PMAQI
21st Nov 2025594 PMAQI
21st Nov 2025635 PMAQI
21st Nov 2025686 PMAQI
21st Nov 2025707 PMAQI
21st Nov 2025838 PMAQI
21st Nov 2025999 PMAQI
21st Nov 202512510 PMAQI
21st Nov 202514511 PMAQI
22nd Nov 202514812 AMAQI
22nd Nov 20251541 AMAQI
22nd Nov 20251572 AMAQI
22nd Nov 20251553 AMAQI
22nd Nov 20251514 AMAQI
22nd Nov 20251215 AMAQI

19°C15/24°C

22nd Nov 20251056 AMAQI
6 AM
11 AM
5 PM
11 PM
5 AM

--°C/°C

Day time
Avg. Highest Time
6 AM - 10 AM

87AQI

5 hours / Day
150 hours / Month
Avg. Lowest Time
3 PM - 5 PM

70AQI

3 hours / Day
90 hours / Month
In the last 30 days, during the daytime, the highest AQI was between 6 AM to 10 AM (Avg. 87), while the lowest AQI was between 3 PM to 5 PM (Avg. 70).
Night time
Avg. Highest Time
12 AM - 2 AM

97AQI

3 hours / Day
90 hours / Month
Avg. Lowest Time
6 PM

73AQI

1 hours / Day
30 hours / Month
In the last 30 days, during the daytime, the highest AQI was between 12 AM to 2 AM (Avg. 97), while the lowest AQI was between 6 PM to 6 PM (Avg. 73).

2025 Days Vs Air Quality

Hanoi US Embassy, Hanoi, Ha Noi, Vietnam

2025

14%

44

60%

195

22%

73

4%

13

Total number of days with different AQI categories in last 326 days in 2025 (39 days remaining)

Good
44 Days
Moderate
195 Days
Poor
73 Days
Unhealthy
13 Days
Severe
0 Days
Hazardous
0 Days

Under WHO’s Safe Air Quality Limits: 14%

Health Risk Level:

Extreme

In 2025, 14% of 326 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 US Embassy, 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.

-1th undefined 2025
-1th undefined 2025
-1th undefined 2025
1st January 2025
126AQI
2nd January 2025
151AQI
3rd January 2025
134AQI
4th January 2025
135AQI
5th January 2025
141AQI
6th January 2025
146AQI
7th January 2025
148AQI
8th January 2025
142AQI
9th January 2025
151AQI
10th January 2025
114AQI
11th January 2025
118AQI
12th January 2025
131AQI
13th January 2025
149AQI
14th January 2025
156AQI
15th January 2025
154AQI
16th January 2025
155AQI
17th January 2025
159AQI
18th January 2025
169AQI
19th January 2025
167AQI
20th January 2025
184AQI
21st January 2025
167AQI
22nd January 2025
167AQI
23rd January 2025
149AQI
24th January 2025
145AQI
25th January 2025
118AQI
26th January 2025
85AQI
27th January 2025
99AQI
28th January 2025
94AQI
29th January 2025
127AQI
30th January 2025
120AQI
31st January 2025
106AQI
1st February 2025
94AQI
2nd February 2025
84AQI
3rd February 2025
69AQI
4th February 2025
82AQI
5th February 2025
108AQI
6th February 2025
116AQI
7th February 2025
62AQI
8th February 2025
77AQI
9th February 2025
97AQI
10th February 2025
141AQI
11th February 2025
149AQI
12th February 2025
166AQI
13th February 2025
146AQI
14th February 2025
146AQI
15th February 2025
147AQI
16th February 2025
89AQI
17th February 2025
125AQI
18th February 2025
76AQI
19th February 2025
103AQI
20th February 2025
138AQI
21st February 2025
125AQI
22nd February 2025
145AQI
23rd February 2025
78AQI
24th February 2025
86AQI
25th February 2025
101AQI
26th February 2025
92AQI
27th February 2025
143AQI
28th February 2025
109AQI
1st March 2025
115AQI
2nd March 2025
92AQI
3rd March 2025
97AQI
4th March 2025
95AQI
5th March 2025
99AQI
6th March 2025
76AQI
7th March 2025
79AQI
8th March 2025
101AQI
9th March 2025
132AQI
10th March 2025
142AQI
11th March 2025
128AQI
12th March 2025
103AQI
13th March 2025
87AQI
14th March 2025
95AQI
15th March 2025
84AQI
16th March 2025
68AQI
17th March 2025
86AQI
18th March 2025
90AQI
19th March 2025
86AQI
20th March 2025
96AQI
21st March 2025
129AQI
22nd March 2025
126AQI
23rd March 2025
131AQI
24th March 2025
137AQI
25th March 2025
141AQI
26th March 2025
118AQI
27th March 2025
113AQI
28th March 2025
107AQI
29th March 2025
85AQI
30th March 2025
65AQI
31st March 2025
71AQI
1st April 2025
96AQI
2nd April 2025
133AQI
3rd April 2025
114AQI
4th April 2025
102AQI
5th April 2025
119AQI
6th April 2025
138AQI
7th April 2025
126AQI
8th April 2025
123AQI
9th April 2025
103AQI
10th April 2025
100AQI
11th April 2025
100AQI
12th April 2025
108AQI
13th April 2025
95AQI
14th April 2025
100AQI
15th April 2025
105AQI
16th April 2025
107AQI
17th April 2025
97AQI
18th April 2025
102AQI
19th April 2025
96AQI
20th April 2025
86AQI
21st April 2025
86AQI
22nd April 2025
97AQI
23rd April 2025
98AQI
24th April 2025
92AQI
25th April 2025
85AQI
26th April 2025
85AQI
27th April 2025
75AQI
28th April 2025
72AQI
29th April 2025
83AQI
30th April 2025
78AQI
1st May 2025
67AQI
2nd May 2025
89AQI
3rd May 2025
85AQI
4th May 2025
82AQI
5th May 2025
85AQI
6th May 2025
80AQI
7th May 2025
81AQI
8th May 2025
86AQI
9th May 2025
82AQI
10th May 2025
84AQI
11th May 2025
59AQI
12th May 2025
71AQI
13th May 2025
69AQI
14th May 2025
67AQI
15th May 2025
62AQI
16th May 2025
63AQI
17th May 2025
58AQI
18th May 2025
57AQI
19th May 2025
61AQI
20th May 2025
59AQI
21st May 2025
58AQI
22nd May 2025
57AQI
23rd May 2025
55AQI
24th May 2025
56AQI
25th May 2025
56AQI
26th May 2025
59AQI
27th May 2025
79AQI
28th May 2025
74AQI
29th May 2025
60AQI
30th May 2025
58AQI
31st May 2025
58AQI
1st June 2025
52AQI
2nd June 2025
52AQI
3rd June 2025
54AQI
4th June 2025
61AQI
5th June 2025
72AQI
6th June 2025
61AQI
7th June 2025
60AQI
8th June 2025
60AQI
9th June 2025
64AQI
10th June 2025
59AQI
11th June 2025
64AQI
12th June 2025
63AQI
13th June 2025
55AQI
14th June 2025
64AQI
15th June 2025
67AQI
16th June 2025
66AQI
17th June 2025
64AQI
18th June 2025
58AQI
19th June 2025
68AQI
20th June 2025
69AQI
21st June 2025
63AQI
22nd June 2025
63AQI
23rd June 2025
64AQI
24th June 2025
64AQI
25th June 2025
55AQI
26th June 2025
58AQI
27th June 2025
62AQI
28th June 2025
56AQI
29th June 2025
57AQI
30th June 2025
54AQI
1st July 2025
47AQI
2nd July 2025
52AQI
3rd July 2025
56AQI
4th July 2025
64AQI
5th July 2025
64AQI
6th July 2025
59AQI
7th July 2025
68AQI
8th July 2025
65AQI
9th July 2025
70AQI
10th July 2025
59AQI
11th July 2025
58AQI
12th July 2025
56AQI
13th July 2025
60AQI
14th July 2025
76AQI
15th July 2025
90AQI
16th July 2025
64AQI
17th July 2025
63AQI
18th July 2025
62AQI
19th July 2025
76AQI
20th July 2025
65AQI
21st July 2025
61AQI
22nd July 2025
39AQI
23rd July 2025
51AQI
24th July 2025
50AQI
25th July 2025
61AQI
26th July 2025
65AQI
27th July 2025
63AQI
28th July 2025
68AQI
29th July 2025
77AQI
30th July 2025
71AQI
31st July 2025
62AQI
1st August 2025
54AQI
2nd August 2025
55AQI
3rd August 2025
56AQI
4th August 2025
56AQI
5th August 2025
54AQI
6th August 2025
52AQI
7th August 2025
58AQI
8th August 2025
57AQI
9th August 2025
53AQI
10th August 2025
56AQI
11th August 2025
55AQI
12th August 2025
50AQI
13th August 2025
52AQI
14th August 2025
54AQI
15th August 2025
43AQI
16th August 2025
41AQI
17th August 2025
39AQI
18th August 2025
38AQI
19th August 2025
41AQI
20th August 2025
44AQI
21st August 2025
47AQI
22nd August 2025
45AQI
23rd August 2025
46AQI
24th August 2025
45AQI
25th August 2025
36AQI
26th August 2025
33AQI
27th August 2025
40AQI
28th August 2025
44AQI
29th August 2025
46AQI
30th August 2025
41AQI
31st August 2025
40AQI
1st September 2025
42AQI
2nd September 2025
41AQI
3rd September 2025
42AQI
4th September 2025
44AQI
5th September 2025
42AQI
6th September 2025
40AQI
7th September 2025
51AQI
8th September 2025
55AQI
9th September 2025
46AQI
10th September 2025
51AQI
11th September 2025
45AQI
12th September 2025
40AQI
13th September 2025
39AQI
14th September 2025
41AQI
15th September 2025
43AQI
16th September 2025
49AQI
17th September 2025
48AQI
18th September 2025
50AQI
19th September 2025
52AQI
20th September 2025
58AQI
21st September 2025
67AQI
22nd September 2025
57AQI
23rd September 2025
60AQI
24th September 2025
52AQI
25th September 2025
48AQI
26th September 2025
51AQI
27th September 2025
44AQI
28th September 2025
48AQI
29th September 2025
51AQI
30th September 2025
47AQI
1st October 2025
70AQI
2nd October 2025
73AQI
3rd October 2025
67AQI
4th October 2025
93AQI
5th October 2025
112AQI
6th October 2025
104AQI
7th October 2025
62AQI
8th October 2025
70AQI
9th October 2025
110AQI
10th October 2025
116AQI
11th October 2025
111AQI
12th October 2025
115AQI
13th October 2025
80AQI
14th October 2025
76AQI
15th October 2025
70AQI
16th October 2025
94AQI
17th October 2025
97AQI
18th October 2025
106AQI
19th October 2025
113AQI
20th October 2025
87AQI
21st October 2025
63AQI
22nd October 2025
55AQI
23rd October 2025
65AQI
24th October 2025
74AQI
25th October 2025
98AQI
26th October 2025
98AQI
27th October 2025
70AQI
28th October 2025
93AQI
29th October 2025
124AQI
30th October 2025
105AQI
31st October 2025
56AQI
1st November 2025
44AQI
2nd November 2025
61AQI
3rd November 2025
47AQI
4th November 2025
49AQI
5th November 2025
66AQI
6th November 2025
102AQI
7th November 2025
123AQI
8th November 2025
70AQI
9th November 2025
82AQI
10th November 2025
68AQI
11th November 2025
64AQI
12th November 2025
74AQI
13th November 2025
79AQI
14th November 2025
111AQI
15th November 2025
119AQI
16th November 2025
148AQI
17th November 2025
162AQI
18th November 2025
82AQI
19th November 2025
50AQI
20th November 2025
76AQI
21st November 2025
93AQI
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

139AQI

111AQI

102AQI

100AQI

68AQI

61AQI

63AQI

47AQI

48AQI

88AQI

84AQI

No. of days

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

202583AQI

3
17
11
12
15
1
17
14
18
12
31
30
3
28
18
13
19
11
21
10
4
11
5
1
44
195
73
13

Highest AQI recorded in

January

139AQI

Lowest AQI recorded in

August

47AQI

202495AQI

10
16
4
1
12
16
1
5
18
8
2
26
2
18
13
22
7
1
30
1
18
13
10
12
7
1
1
12
15
3
21
8
1
14
15
2
29
171
142
23
1

Highest AQI recorded in

March

126AQI

Lowest AQI recorded in

August

32AQI

2023106AQI

1
9
21
9
14
5
8
10
13
7
21
2
16
13
2
1
21
8
4
21
6
22
9
15
15
10
19
2
14
10
1
2
8
4
11
3
5
27
144
136
50
5

Highest AQI recorded in

January

154AQI

Lowest AQI recorded in

November

54AQI

202292AQI

11
13
5
1
6
8
5
3
18
11
2
27
3
9
16
5
23
7
22
2
1
8
18
3
18
8
1
4
10
13
7
4
11
15
1
60
131
87
39
2

Highest AQI recorded in

December

142AQI

Lowest AQI recorded in

April

19AQI

2021100AQI

1
9
16
5
5
21
2
14
13
4
21
9
29
2
2
22
5
1
28
3
4
22
4
1
3
21
6
11
12
8
1
14
11
4
4
7
20
22
192
98
48
5

Highest AQI recorded in

January

164AQI

Lowest AQI recorded in

July

73AQI

202099AQI

6
7
6
13
2
8
10
22
8
26
4
1
1
25
5
6
19
4
1
2
20
7
2
12
13
5
6
12
13
9
150
83
24

Highest AQI recorded in

December

135AQI

Lowest AQI recorded in

September

72AQI

Most & Least Polluted Years Over the Last 6 Years

Most Polluted Year Recorded
2023(Avg.)
106AQI
Least Polluted Year Recorded
2025(Avg.)
83AQI

Hanoi US Embassy's annual 2025 AQI (83) shows an average percentage change of -15.7% (improved AQI) compared to previous years: 2020 (99), 2021 (100), 2022 (92), 2023 (106), 2024 (95).