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+
October 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
27th Oct 2023
173AQILowest AQI recorded on
12th Oct 2022
8AQISame Day Analysis (19th October ):
On this day, AQI across the 5 years varied significantly: 2025 ranks 2nd highest AQI at 121 of Poor air quality, showing improvement over 2023 on the same day.
Download 2024 Annual Data
World Air Quality Report
Day & Night AQI Trend: 19th Oct - 20th Oct 2025
Hanoi US Embassy, Hanoi, Ha Noi, Vietnam
AQI
Day
Night
.
5 AM19th Oct 2025
5 PM
4 AM20th Oct 2025
Day time
Avg. Highest Time
11AM19th Oct
152AQI
Avg. Lowest Time
5PM19th Oct
80AQI
Night time
Avg. Highest Time
2AM20th Oct
113AQI
Avg. Lowest Time
7PM19th Oct
85AQI
In the last 24 hours,
Hanoi US Embassy's AQI reached its highest point of 152 at 11 AM during the Day, while the lowest point, 80, was recorded at 5 PM during the Day between 19th Oct and 20th Oct 2025.
Day & Night AQI Trend : Sep - Oct 2025
Hanoi US Embassy, Hanoi, Ha Noi, Vietnam
SepOct
20th - 21st21st - 22nd22nd - 23rd23rd - 24th24th - 25th25th - 26th26th - 27th27th - 28th28th - 29th29th - 30th30th - 01st01st - 02nd02nd - 03rd03rd - 04th04th - 05th05th - 06th06th - 07th07th - 08th08th - 09th09th - 10th10th - 11th11th - 12th12th - 13th13th - 14th14th - 15th15th - 16th16th - 17th17th - 18th18th - 19th19th - 20th20th
Day
Night
20th Sep 2025525 AMAQI
20th Sep 2025576 AMAQI
20th Sep 2025647 AMAQI
20th Sep 2025708 AMAQI
20th Sep 2025769 AMAQI
20th Sep 20258310 AMAQI
20th Sep 20256511 AMAQI
20th Sep 20256412 PMAQI
20th Sep 2025601 PMAQI
20th Sep 2025592 PMAQI
20th Sep 2025583 PMAQI
20th Sep 2025594 PMAQI
20th Sep 2025575 PMAQI
20th Sep 2025566 PMAQI
20th Sep 2025567 PMAQI
20th Sep 2025588 PMAQI
20th Sep 2025669 PMAQI
20th Sep 20256510 PMAQI
20th Sep 20256211 PMAQI
21st Sep 20256312 AMAQI
21st Sep 2025561 AMAQI
21st Sep 2025502 AMAQI
21st Sep 2025613 AMAQI
21st Sep 2025604 AMAQI
29°C25/35°C
21st Sep 2025615 AMAQI
21st Sep 2025606 AMAQI
21st Sep 2025797 AMAQI
21st Sep 2025868 AMAQI
21st Sep 2025879 AMAQI
21st Sep 20259710 AMAQI
21st Sep 20257511 AMAQI
21st Sep 20257612 PMAQI
21st Sep 2025741 PMAQI
21st Sep 2025792 PMAQI
21st Sep 2025743 PMAQI
21st Sep 2025644 PMAQI
21st Sep 2025605 PMAQI
21st Sep 2025686 PMAQI
21st Sep 2025687 PMAQI
21st Sep 2025618 PMAQI
21st Sep 2025669 PMAQI
21st Sep 20256510 PMAQI
21st Sep 20256111 PMAQI
22nd Sep 20256112 AMAQI
22nd Sep 2025561 AMAQI
22nd Sep 2025542 AMAQI
22nd Sep 2025643 AMAQI
22nd Sep 2025544 AMAQI
29°C26/35°C
22nd Sep 2025555 AMAQI
22nd Sep 2025686 AMAQI
22nd Sep 2025627 AMAQI
22nd Sep 2025618 AMAQI
22nd Sep 2025539 AMAQI
22nd Sep 20255110 AMAQI
22nd Sep 20254411 AMAQI
22nd Sep 20254412 PMAQI
22nd Sep 2025471 PMAQI
22nd Sep 2025602 PMAQI
22nd Sep 2025703 PMAQI
22nd Sep 2025614 PMAQI
22nd Sep 2025555 PMAQI
22nd Sep 2025616 PMAQI
22nd Sep 2025597 PMAQI
22nd Sep 2025568 PMAQI
22nd Sep 2025589 PMAQI
22nd Sep 20255810 PMAQI
22nd Sep 20255811 PMAQI
23rd Sep 20255312 AMAQI
23rd Sep 2025501 AMAQI
23rd Sep 2025492 AMAQI
23rd Sep 2025523 AMAQI
23rd Sep 2025514 AMAQI
28°C26/32°C
23rd Sep 2025545 AMAQI
23rd Sep 2025636 AMAQI
23rd Sep 2025737 AMAQI
23rd Sep 2025758 AMAQI
23rd Sep 2025779 AMAQI
23rd Sep 20257410 AMAQI
23rd Sep 20256511 AMAQI
23rd Sep 20255612 PMAQI
23rd Sep 2025651 PMAQI
23rd Sep 2025612 PMAQI
23rd Sep 2025533 PMAQI
23rd Sep 2025544 PMAQI
23rd Sep 2025555 PMAQI
23rd Sep 2025566 PMAQI
23rd Sep 2025597 PMAQI
23rd Sep 2025608 PMAQI
23rd Sep 2025669 PMAQI
23rd Sep 20256210 PMAQI
23rd Sep 20256611 PMAQI
24th Sep 20256612 AMAQI
24th Sep 2025521 AMAQI
24th Sep 2025522 AMAQI
24th Sep 2025553 AMAQI
24th Sep 2025564 AMAQI
28°C24/32°C
24th Sep 2025575 AMAQI
24th Sep 2025626 AMAQI
24th Sep 2025587 AMAQI
24th Sep 2025598 AMAQI
24th Sep 2025549 AMAQI
24th Sep 20255410 AMAQI
24th Sep 20255211 AMAQI
24th Sep 20255112 PMAQI
24th Sep 2025491 PMAQI
24th Sep 2025532 PMAQI
24th Sep 2025473 PMAQI
24th Sep 2025424 PMAQI
24th Sep 2025405 PMAQI
24th Sep 2025436 PMAQI
24th Sep 2025387 PMAQI
24th Sep 2025458 PMAQI
24th Sep 2025529 PMAQI
24th Sep 20255510 PMAQI
24th Sep 20255411 PMAQI
25th Sep 20255612 AMAQI
25th Sep 2025541 AMAQI
25th Sep 2025532 AMAQI
25th Sep 2025523 AMAQI
25th Sep 2025524 AMAQI
29°C24/34°C
25th Sep 2025525 AMAQI
25th Sep 2025616 AMAQI
25th Sep 2025597 AMAQI
25th Sep 2025558 AMAQI
25th Sep 2025539 AMAQI
25th Sep 20255810 AMAQI
25th Sep 20254811 AMAQI
25th Sep 20255812 PMAQI
25th Sep 2025591 PMAQI
25th Sep 2025592 PMAQI
25th Sep 2025553 PMAQI
25th Sep 2025484 PMAQI
25th Sep 2025435 PMAQI
25th Sep 2025406 PMAQI
25th Sep 2025397 PMAQI
25th Sep 2025388 PMAQI
25th Sep 2025329 PMAQI
25th Sep 20253110 PMAQI
25th Sep 20253111 PMAQI
26th Sep 20253012 AMAQI
26th Sep 2025321 AMAQI
26th Sep 2025362 AMAQI
26th Sep 2025363 AMAQI
26th Sep 2025384 AMAQI
25°C24/24°C
26th Sep 2025445 AMAQI
26th Sep 2025466 AMAQI
26th Sep 2025477 AMAQI
26th Sep 2025488 AMAQI
26th Sep 2025499 AMAQI
26th Sep 20255010 AMAQI
26th Sep 20255811 AMAQI
26th Sep 20255812 PMAQI
26th Sep 2025581 PMAQI
26th Sep 2025602 PMAQI
26th Sep 2025583 PMAQI
26th Sep 2025594 PMAQI
26th Sep 2025595 PMAQI
26th Sep 2025606 PMAQI
26th Sep 2025617 PMAQI
26th Sep 2025618 PMAQI
26th Sep 2025609 PMAQI
26th Sep 20256110 PMAQI
26th Sep 20256611 PMAQI
27th Sep 20256212 AMAQI
27th Sep 2025591 AMAQI
27th Sep 2025542 AMAQI
27th Sep 2025463 AMAQI
27th Sep 2025464 AMAQI
25°C23/28°C
27th Sep 2025455 AMAQI
27th Sep 2025436 AMAQI
27th Sep 2025417 AMAQI
27th Sep 2025378 AMAQI
27th Sep 2025409 AMAQI
27th Sep 20254510 AMAQI
27th Sep 20255111 AMAQI
27th Sep 20255312 PMAQI
27th Sep 2025461 PMAQI
27th Sep 2025412 PMAQI
27th Sep 2025393 PMAQI
27th Sep 2025264 PMAQI
27th Sep 2025295 PMAQI
27th Sep 2025356 PMAQI
27th Sep 2025377 PMAQI
27th Sep 2025408 PMAQI
27th Sep 2025429 PMAQI
27th Sep 20254310 PMAQI
27th Sep 20255311 PMAQI
28th Sep 20255512 AMAQI
28th Sep 2025551 AMAQI
28th Sep 2025562 AMAQI
28th Sep 2025553 AMAQI
28th Sep 2025524 AMAQI
27°C24/30°C
28th Sep 2025545 AMAQI
28th Sep 2025556 AMAQI
28th Sep 2025567 AMAQI
28th Sep 2025538 AMAQI
28th Sep 2025489 AMAQI
28th Sep 20254810 AMAQI
28th Sep 20255411 AMAQI
28th Sep 20255112 PMAQI
28th Sep 2025511 PMAQI
28th Sep 2025522 PMAQI
28th Sep 2025463 PMAQI
28th Sep 2025454 PMAQI
28th Sep 2025505 PMAQI
28th Sep 2025406 PMAQI
28th Sep 2025337 PMAQI
28th Sep 2025338 PMAQI
28th Sep 2025349 PMAQI
28th Sep 20254110 PMAQI
28th Sep 20254311 PMAQI
29th Sep 20254412 AMAQI
29th Sep 2025561 AMAQI
29th Sep 2025562 AMAQI
29th Sep 2025583 AMAQI
29th Sep 2025604 AMAQI
25°C23/30°C
29th Sep 2025605 AMAQI
29th Sep 2025606 AMAQI
29th Sep 2025587 AMAQI
29th Sep 2025608 AMAQI
29th Sep 2025559 AMAQI
29th Sep 20254910 AMAQI
29th Sep 20254411 AMAQI
29th Sep 20254512 PMAQI
29th Sep 2025491 PMAQI
29th Sep 2025442 PMAQI
29th Sep 2025403 PMAQI
29th Sep 2025504 PMAQI
29th Sep 2025505 PMAQI
29th Sep 2025536 PMAQI
29th Sep 2025517 PMAQI
29th Sep 2025488 PMAQI
29th Sep 2025409 PMAQI
29th Sep 20254110 PMAQI
29th Sep 20254211 PMAQI
30th Sep 20254212 AMAQI
30th Sep 2025421 AMAQI
30th Sep 2025432 AMAQI
30th Sep 2025483 AMAQI
30th Sep 2025464 AMAQI
25°C24/25°C
30th Sep 2025465 AMAQI
30th Sep 2025416 AMAQI
30th Sep 2025447 AMAQI
30th Sep 2025418 AMAQI
30th Sep 2025379 AMAQI
30th Sep 20254310 AMAQI
30th Sep 20255211 AMAQI
30th Sep 20255512 PMAQI
30th Sep 2025471 PMAQI
30th Sep 2025362 PMAQI
30th Sep 2025323 PMAQI
30th Sep 2025534 PMAQI
30th Sep 2025735 PMAQI
30th Sep 2025436 PMAQI
30th Sep 2025507 PMAQI
30th Sep 2025408 PMAQI
30th Sep 2025479 PMAQI
30th Sep 20255010 PMAQI
30th Sep 20255411 PMAQI
1st Oct 20255912 AMAQI
1st Oct 2025601 AMAQI
1st Oct 2025692 AMAQI
1st Oct 2025803 AMAQI
1st Oct 2025844 AMAQI
26°C25/30°C
1st Oct 2025935 AMAQI
1st Oct 2025836 AMAQI
1st Oct 2025867 AMAQI
1st Oct 2025828 AMAQI
1st Oct 2025799 AMAQI
1st Oct 20258110 AMAQI
1st Oct 20256411 AMAQI
1st Oct 20256112 PMAQI
1st Oct 2025581 PMAQI
1st Oct 2025592 PMAQI
1st Oct 2025593 PMAQI
1st Oct 2025604 PMAQI
1st Oct 2025645 PMAQI
1st Oct 2025616 PMAQI
1st Oct 2025617 PMAQI
1st Oct 2025638 PMAQI
1st Oct 2025689 PMAQI
1st Oct 20257410 PMAQI
1st Oct 20257611 PMAQI
2nd Oct 20257412 AMAQI
2nd Oct 2025751 AMAQI
2nd Oct 2025702 AMAQI
2nd Oct 2025783 AMAQI
2nd Oct 2025984 AMAQI
27°C24/30°C
2nd Oct 20251045 AMAQI
2nd Oct 2025796 AMAQI
2nd Oct 2025917 AMAQI
2nd Oct 2025908 AMAQI
2nd Oct 2025959 AMAQI
2nd Oct 20258610 AMAQI
2nd Oct 20258111 AMAQI
2nd Oct 20256412 PMAQI
2nd Oct 2025641 PMAQI
2nd Oct 2025602 PMAQI
2nd Oct 2025573 PMAQI
2nd Oct 2025564 PMAQI
2nd Oct 2025565 PMAQI
2nd Oct 2025606 PMAQI
2nd Oct 2025607 PMAQI
2nd Oct 2025608 PMAQI
2nd Oct 2025649 PMAQI
2nd Oct 20256810 PMAQI
2nd Oct 20256911 PMAQI
3rd Oct 20257212 AMAQI
3rd Oct 2025641 AMAQI
3rd Oct 2025642 AMAQI
3rd Oct 2025653 AMAQI
3rd Oct 2025654 AMAQI
27°C24/32°C
3rd Oct 2025745 AMAQI
3rd Oct 2025716 AMAQI
3rd Oct 2025637 AMAQI
3rd Oct 2025678 AMAQI
3rd Oct 2025689 AMAQI
3rd Oct 20256610 AMAQI
3rd Oct 20256411 AMAQI
3rd Oct 20255812 PMAQI
3rd Oct 2025621 PMAQI
3rd Oct 2025582 PMAQI
3rd Oct 2025563 PMAQI
3rd Oct 2025564 PMAQI
3rd Oct 2025565 PMAQI
3rd Oct 2025516 PMAQI
3rd Oct 2025737 PMAQI
3rd Oct 2025728 PMAQI
3rd Oct 2025769 PMAQI
3rd Oct 20258810 PMAQI
3rd Oct 20259311 PMAQI
4th Oct 20259212 AMAQI
4th Oct 2025881 AMAQI
4th Oct 2025822 AMAQI
4th Oct 2025843 AMAQI
4th Oct 2025784 AMAQI
28°C24/33°C
4th Oct 2025795 AMAQI
4th Oct 2025816 AMAQI
4th Oct 2025927 AMAQI
4th Oct 2025938 AMAQI
4th Oct 2025989 AMAQI
4th Oct 202510210 AMAQI
4th Oct 202510111 AMAQI
4th Oct 20258912 PMAQI
4th Oct 2025961 PMAQI
4th Oct 2025982 PMAQI
4th Oct 2025913 PMAQI
4th Oct 2025904 PMAQI
4th Oct 2025965 PMAQI
4th Oct 2025926 PMAQI
4th Oct 2025947 PMAQI
4th Oct 2025978 PMAQI
4th Oct 20251049 PMAQI
4th Oct 202511210 PMAQI
4th Oct 202511111 PMAQI
5th Oct 202510312 AMAQI
5th Oct 2025891 AMAQI
5th Oct 2025962 AMAQI
5th Oct 2025923 AMAQI
5th Oct 20251034 AMAQI
28°C24/32°C
5th Oct 20251225 AMAQI
5th Oct 20251406 AMAQI
5th Oct 20251497 AMAQI
5th Oct 20251458 AMAQI
5th Oct 20251439 AMAQI
5th Oct 202512210 AMAQI
5th Oct 202512411 AMAQI
5th Oct 202511812 PMAQI
5th Oct 20251171 PMAQI
5th Oct 20251022 PMAQI
5th Oct 2025913 PMAQI
5th Oct 2025904 PMAQI
5th Oct 2025855 PMAQI
5th Oct 2025846 PMAQI
5th Oct 2025907 PMAQI
5th Oct 20251028 PMAQI
5th Oct 20251199 PMAQI
5th Oct 202513110 PMAQI
5th Oct 202514111 PMAQI
6th Oct 202515012 AMAQI
6th Oct 20251541 AMAQI
6th Oct 20251542 AMAQI
6th Oct 20251593 AMAQI
6th Oct 20251504 AMAQI
29°C25/34°C
6th Oct 20251545 AMAQI
6th Oct 20251446 AMAQI
6th Oct 20251277 AMAQI
6th Oct 20251298 AMAQI
6th Oct 20251189 AMAQI
6th Oct 202512110 AMAQI
6th Oct 202510511 AMAQI
6th Oct 202510112 PMAQI
6th Oct 20251011 PMAQI
6th Oct 2025812 PMAQI
6th Oct 2025633 PMAQI
6th Oct 2025584 PMAQI
6th Oct 2025605 PMAQI
6th Oct 2025606 PMAQI
6th Oct 2025587 PMAQI
6th Oct 2025598 PMAQI
6th Oct 2025589 PMAQI
6th Oct 20256010 PMAQI
6th Oct 20255811 PMAQI
7th Oct 20256212 AMAQI
25°C24/27°C
7th Oct 2025686 PMAQI
7th Oct 2025607 PMAQI
7th Oct 2025628 PMAQI
7th Oct 2025639 PMAQI
7th Oct 20255710 PMAQI
7th Oct 20256411 PMAQI
8th Oct 20256212 AMAQI
8th Oct 2025581 AMAQI
8th Oct 2025572 AMAQI
8th Oct 2025573 AMAQI
8th Oct 2025574 AMAQI
25°C24/27°C
8th Oct 2025635 AMAQI
8th Oct 2025566 AMAQI
8th Oct 2025557 AMAQI
8th Oct 2025658 AMAQI
8th Oct 2025779 AMAQI
8th Oct 20257910 AMAQI
8th Oct 20258511 AMAQI
8th Oct 20258012 PMAQI
8th Oct 2025781 PMAQI
8th Oct 2025702 PMAQI
8th Oct 2025783 PMAQI
8th Oct 2025854 PMAQI
8th Oct 2025805 PMAQI
8th Oct 2025786 PMAQI
8th Oct 2025707 PMAQI
8th Oct 2025748 PMAQI
8th Oct 2025759 PMAQI
8th Oct 20257810 PMAQI
8th Oct 20257811 PMAQI
9th Oct 20258412 AMAQI
9th Oct 20251011 AMAQI
9th Oct 20251052 AMAQI
9th Oct 20251333 AMAQI
9th Oct 20251254 AMAQI
27°C24/32°C
9th Oct 20251275 AMAQI
9th Oct 20251086 AMAQI
9th Oct 20251167 AMAQI
9th Oct 20251208 AMAQI
9th Oct 20251489 AMAQI
9th Oct 202514410 AMAQI
9th Oct 202513511 AMAQI
9th Oct 202510712 PMAQI
9th Oct 2025991 PMAQI
9th Oct 2025872 PMAQI
9th Oct 2025913 PMAQI
9th Oct 2025924 PMAQI
9th Oct 2025915 PMAQI
9th Oct 2025906 PMAQI
9th Oct 2025987 PMAQI
9th Oct 20251018 PMAQI
9th Oct 20251229 PMAQI
9th Oct 202511310 PMAQI
9th Oct 202511111 PMAQI
10th Oct 202510612 AMAQI
10th Oct 20251051 AMAQI
10th Oct 20251042 AMAQI
10th Oct 20251113 AMAQI
10th Oct 20251144 AMAQI
27°C24/32°C
10th Oct 20251285 AMAQI
10th Oct 20251326 AMAQI
10th Oct 20251497 AMAQI
10th Oct 20251508 AMAQI
10th Oct 20251579 AMAQI
10th Oct 202515810 AMAQI
10th Oct 202515111 AMAQI
10th Oct 202511812 PMAQI
10th Oct 20251061 PMAQI
10th Oct 20251002 PMAQI
10th Oct 2025923 PMAQI
10th Oct 2025934 PMAQI
10th Oct 2025995 PMAQI
10th Oct 2025916 PMAQI
10th Oct 2025957 PMAQI
10th Oct 20251048 PMAQI
10th Oct 20251149 PMAQI
10th Oct 202512110 PMAQI
10th Oct 202512211 PMAQI
11th Oct 202512612 AMAQI
11th Oct 20251171 AMAQI
11th Oct 20251042 AMAQI
11th Oct 2025913 AMAQI
11th Oct 2025944 AMAQI
28°C24/33°C
11th Oct 2025975 AMAQI
11th Oct 2025956 AMAQI
11th Oct 2025977 AMAQI
11th Oct 20251078 AMAQI
11th Oct 20251439 AMAQI
11th Oct 202515710 AMAQI
11th Oct 202515511 AMAQI
11th Oct 202514712 PMAQI
11th Oct 20251121 PMAQI
11th Oct 20251222 PMAQI
11th Oct 2025953 PMAQI
11th Oct 2025884 PMAQI
11th Oct 2025865 PMAQI
11th Oct 20251056 PMAQI
11th Oct 2025997 PMAQI
11th Oct 20251088 PMAQI
11th Oct 20251189 PMAQI
11th Oct 202511510 PMAQI
11th Oct 202511811 PMAQI
12th Oct 202514212 AMAQI
12th Oct 20251341 AMAQI
12th Oct 20251322 AMAQI
12th Oct 20251163 AMAQI
12th Oct 20251404 AMAQI
28°C25/32°C
12th Oct 20251315 AMAQI
12th Oct 20251346 AMAQI
12th Oct 20251467 AMAQI
12th Oct 20251538 AMAQI
12th Oct 20251099 AMAQI
12th Oct 202510910 AMAQI
12th Oct 202511911 AMAQI
12th Oct 202510912 PMAQI
12th Oct 20251061 PMAQI
12th Oct 20251042 PMAQI
12th Oct 20251133 PMAQI
12th Oct 20251104 PMAQI
12th Oct 20251105 PMAQI
12th Oct 2025966 PMAQI
12th Oct 2025987 PMAQI
12th Oct 2025948 PMAQI
12th Oct 20251029 PMAQI
12th Oct 20259510 PMAQI
12th Oct 20258411 PMAQI
13th Oct 20258212 AMAQI
13th Oct 2025811 AMAQI
13th Oct 2025762 AMAQI
13th Oct 2025803 AMAQI
13th Oct 2025814 AMAQI
28°C25/32°C
13th Oct 2025815 AMAQI
13th Oct 2025816 AMAQI
13th Oct 2025827 AMAQI
13th Oct 2025968 AMAQI
13th Oct 20251089 AMAQI
13th Oct 202510910 AMAQI
13th Oct 202510811 AMAQI
13th Oct 20259912 PMAQI
13th Oct 20251071 PMAQI
13th Oct 2025902 PMAQI
13th Oct 2025643 PMAQI
13th Oct 2025724 PMAQI
13th Oct 2025685 PMAQI
13th Oct 2025626 PMAQI
13th Oct 2025587 PMAQI
13th Oct 2025598 PMAQI
13th Oct 2025679 PMAQI
13th Oct 20257510 PMAQI
13th Oct 20257411 PMAQI
14th Oct 20258212 AMAQI
14th Oct 2025841 AMAQI
14th Oct 2025802 AMAQI
14th Oct 2025773 AMAQI
14th Oct 2025894 AMAQI
27°C25/31°C
14th Oct 2025835 AMAQI
14th Oct 2025866 AMAQI
14th Oct 2025717 AMAQI
14th Oct 2025698 AMAQI
14th Oct 2025719 AMAQI
14th Oct 20257610 AMAQI
14th Oct 20257811 AMAQI
14th Oct 20258212 PMAQI
14th Oct 2025711 PMAQI
14th Oct 2025732 PMAQI
14th Oct 2025703 PMAQI
14th Oct 2025704 PMAQI
14th Oct 2025735 PMAQI
14th Oct 2025756 PMAQI
14th Oct 2025677 PMAQI
14th Oct 2025688 PMAQI
14th Oct 2025729 PMAQI
14th Oct 20257510 PMAQI
14th Oct 20257011 PMAQI
15th Oct 20257212 AMAQI
15th Oct 2025721 AMAQI
15th Oct 2025812 AMAQI
15th Oct 2025693 AMAQI
15th Oct 2025654 AMAQI
27°C25/30°C
15th Oct 2025625 AMAQI
15th Oct 2025686 AMAQI
15th Oct 2025707 AMAQI
15th Oct 2025748 AMAQI
15th Oct 2025729 AMAQI
15th Oct 20257710 AMAQI
15th Oct 20257211 AMAQI
15th Oct 20257712 PMAQI
15th Oct 2025751 PMAQI
15th Oct 2025682 PMAQI
15th Oct 2025653 PMAQI
15th Oct 2025634 PMAQI
15th Oct 2025655 PMAQI
15th Oct 2025636 PMAQI
15th Oct 2025617 PMAQI
15th Oct 2025598 PMAQI
15th Oct 2025709 PMAQI
15th Oct 20258510 PMAQI
15th Oct 20258811 PMAQI
16th Oct 202510212 AMAQI
16th Oct 20251041 AMAQI
16th Oct 2025992 AMAQI
16th Oct 20251243 AMAQI
16th Oct 20251304 AMAQI
27°C24/31°C
16th Oct 20251325 AMAQI
16th Oct 2025966 AMAQI
16th Oct 20251057 AMAQI
16th Oct 2025968 AMAQI
16th Oct 2025709 AMAQI
16th Oct 20256210 AMAQI
16th Oct 20257011 AMAQI
16th Oct 20257912 PMAQI
16th Oct 2025781 PMAQI
16th Oct 2025852 PMAQI
16th Oct 2025883 PMAQI
16th Oct 2025774 PMAQI
16th Oct 2025745 PMAQI
16th Oct 2025816 PMAQI
16th Oct 2025767 PMAQI
16th Oct 2025888 PMAQI
16th Oct 2025949 PMAQI
16th Oct 202511310 PMAQI
16th Oct 202510311 PMAQI
17th Oct 20259612 AMAQI
17th Oct 2025831 AMAQI
17th Oct 2025932 AMAQI
17th Oct 20251003 AMAQI
17th Oct 20251064 AMAQI
27°C24/31°C
17th Oct 20251095 AMAQI
17th Oct 20251166 AMAQI
17th Oct 20251327 AMAQI
17th Oct 20251398 AMAQI
17th Oct 20251299 AMAQI
17th Oct 202513010 AMAQI
17th Oct 202510211 AMAQI
17th Oct 20258912 PMAQI
17th Oct 2025761 PMAQI
17th Oct 2025722 PMAQI
17th Oct 2025653 PMAQI
17th Oct 2025714 PMAQI
17th Oct 2025815 PMAQI
17th Oct 2025806 PMAQI
17th Oct 2025837 PMAQI
17th Oct 20251018 PMAQI
17th Oct 2025999 PMAQI
17th Oct 20259910 PMAQI
17th Oct 20259111 PMAQI
18th Oct 20258612 AMAQI
18th Oct 2025801 AMAQI
18th Oct 2025902 AMAQI
18th Oct 2025923 AMAQI
18th Oct 20251164 AMAQI
27°C24/32°C
18th Oct 20251465 AMAQI
18th Oct 20251496 AMAQI
18th Oct 20251507 AMAQI
18th Oct 20251468 AMAQI
18th Oct 20251329 AMAQI
18th Oct 202514410 AMAQI
18th Oct 202513511 AMAQI
18th Oct 202512212 PMAQI
18th Oct 20251201 PMAQI
18th Oct 2025922 PMAQI
18th Oct 2025813 PMAQI
18th Oct 2025744 PMAQI
18th Oct 2025785 PMAQI
18th Oct 2025806 PMAQI
18th Oct 2025877 PMAQI
18th Oct 2025988 PMAQI
18th Oct 2025949 PMAQI
18th Oct 20259610 PMAQI
18th Oct 202510111 PMAQI
19th Oct 202511012 AMAQI
19th Oct 20251151 AMAQI
19th Oct 20251202 AMAQI
19th Oct 20251153 AMAQI
19th Oct 20251164 AMAQI
28°C24/33°C
19th Oct 20251315 AMAQI
19th Oct 20251486 AMAQI
19th Oct 20251437 AMAQI
19th Oct 20251408 AMAQI
19th Oct 20251499 AMAQI
19th Oct 202515110 AMAQI
19th Oct 202515211 AMAQI
19th Oct 202510412 PMAQI
19th Oct 20251171 PMAQI
19th Oct 2025952 PMAQI
19th Oct 2025843 PMAQI
19th Oct 2025834 PMAQI
19th Oct 2025805 PMAQI
19th Oct 2025946 PMAQI
19th Oct 2025857 PMAQI
19th Oct 2025878 PMAQI
19th Oct 20251129 PMAQI
19th Oct 202510810 PMAQI
19th Oct 202510411 PMAQI
20th Oct 202511012 AMAQI
20th Oct 20251061 AMAQI
20th Oct 20251132 AMAQI
20th Oct 20251023 AMAQI
20th Oct 20251004 AMAQI
28°C25/33°C
20th Oct 2025925 AMAQI
5 AM20th Oct 2025946 AMAQI
20th Oct 2025987 AMAQI
20th Oct 2025818 AMAQI
20th Oct 2025809 AMAQI
20th Oct 20257610 AMAQI
20th Oct 20257811 AMAQI
11 AM20th Oct 20257512 PMAQI
20th Oct 2025691 PMAQI
20th Oct 2025692 PMAQI
20th Oct 2025713 PMAQI
20th Oct 2025724 PMAQI
5 PM
11 PM
4 AM
--°C/°C
Day time
Avg. Highest Time
7 AM - 10 AM
90AQI
4 hours / Day
120 hours / Month
Avg. Lowest Time
3 PM - 5 PM
68AQI
3 hours / Day
90 hours / Month
In the last 30 days, during the daytime, the highest AQI was between 7 AM to 10 AM (Avg. 90), while the lowest AQI was between 3 PM to 5 PM (Avg. 68).
Night time
Avg. Highest Time
12 AM - 4 AM
79AQI
5 hours / Day
150 hours / Month
Avg. Lowest Time
6 PM - 7 PM
68AQI
2 hours / Day
60 hours / Month
In the last 30 days, during the daytime, the highest AQI was between 12 AM to 4 AM (Avg. 79), while the lowest AQI was between 6 PM to 7 PM (Avg. 68).
2025 Days Vs Air Quality
Hanoi US Embassy, Hanoi, Ha Noi, Vietnam
2025
14%
40
60%
174
23%
66
4%
12
Total number of days with different AQI categories in last 293 days in 2025 (72 days remaining)
Good
40 DaysModerate
174 DaysPoor
66 DaysUnhealthy
12 DaysSevere
0 DaysHazardous
0 DaysUnder WHO’s Safe Air Quality Limits: 14%
Health Risk Level:
Extreme
In 2025, 14% of 293 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
126AQI
2nd January 2025
151AQI
151AQI
3rd January 2025
134AQI
134AQI
4th January 2025
135AQI
135AQI
5th January 2025
141AQI
141AQI
6th January 2025
146AQI
146AQI
7th January 2025
148AQI
148AQI
8th January 2025
142AQI
142AQI
9th January 2025
151AQI
151AQI
10th January 2025
114AQI
114AQI
11th January 2025
118AQI
118AQI
12th January 2025
131AQI
131AQI
13th January 2025
149AQI
149AQI
14th January 2025
156AQI
156AQI
15th January 2025
154AQI
154AQI
16th January 2025
155AQI
155AQI
17th January 2025
159AQI
159AQI
18th January 2025
169AQI
169AQI
19th January 2025
167AQI
167AQI
20th January 2025
184AQI
184AQI
21st January 2025
167AQI
167AQI
22nd January 2025
167AQI
167AQI
23rd January 2025
149AQI
149AQI
24th January 2025
145AQI
145AQI
25th January 2025
118AQI
118AQI
26th January 2025
85AQI
85AQI
27th January 2025
99AQI
99AQI
28th January 2025
94AQI
94AQI
29th January 2025
127AQI
127AQI
30th January 2025
120AQI
120AQI
31st January 2025
106AQI
106AQI
1st February 2025
94AQI
94AQI
2nd February 2025
84AQI
84AQI
3rd February 2025
69AQI
69AQI
4th February 2025
82AQI
82AQI
5th February 2025
108AQI
108AQI
6th February 2025
116AQI
116AQI
7th February 2025
62AQI
62AQI
8th February 2025
77AQI
77AQI
9th February 2025
97AQI
97AQI
10th February 2025
141AQI
141AQI
11th February 2025
149AQI
149AQI
12th February 2025
166AQI
166AQI
13th February 2025
146AQI
146AQI
14th February 2025
146AQI
146AQI
15th February 2025
147AQI
147AQI
16th February 2025
89AQI
89AQI
17th February 2025
125AQI
125AQI
18th February 2025
76AQI
76AQI
19th February 2025
103AQI
103AQI
20th February 2025
138AQI
138AQI
21st February 2025
125AQI
125AQI
22nd February 2025
145AQI
145AQI
23rd February 2025
78AQI
78AQI
24th February 2025
86AQI
86AQI
25th February 2025
101AQI
101AQI
26th February 2025
92AQI
92AQI
27th February 2025
143AQI
143AQI
28th February 2025
109AQI
109AQI
1st March 2025
115AQI
115AQI
2nd March 2025
92AQI
92AQI
3rd March 2025
97AQI
97AQI
4th March 2025
95AQI
95AQI
5th March 2025
99AQI
99AQI
6th March 2025
76AQI
76AQI
7th March 2025
79AQI
79AQI
8th March 2025
101AQI
101AQI
9th March 2025
132AQI
132AQI
10th March 2025
142AQI
142AQI
11th March 2025
128AQI
128AQI
12th March 2025
103AQI
103AQI
13th March 2025
87AQI
87AQI
14th March 2025
95AQI
95AQI
15th March 2025
84AQI
84AQI
16th March 2025
68AQI
68AQI
17th March 2025
86AQI
86AQI
18th March 2025
90AQI
90AQI
19th March 2025
86AQI
86AQI
20th March 2025
96AQI
96AQI
21st March 2025
129AQI
129AQI
22nd March 2025
126AQI
126AQI
23rd March 2025
131AQI
131AQI
24th March 2025
137AQI
137AQI
25th March 2025
141AQI
141AQI
26th March 2025
118AQI
118AQI
27th March 2025
113AQI
113AQI
28th March 2025
107AQI
107AQI
29th March 2025
85AQI
85AQI
30th March 2025
65AQI
65AQI
31st March 2025
71AQI
71AQI
1st April 2025
96AQI
96AQI
2nd April 2025
133AQI
133AQI
3rd April 2025
114AQI
114AQI
4th April 2025
102AQI
102AQI
5th April 2025
119AQI
119AQI
6th April 2025
138AQI
138AQI
7th April 2025
126AQI
126AQI
8th April 2025
123AQI
123AQI
9th April 2025
103AQI
103AQI
10th April 2025
100AQI
100AQI
11th April 2025
100AQI
100AQI
12th April 2025
108AQI
108AQI
13th April 2025
95AQI
95AQI
14th April 2025
100AQI
100AQI
15th April 2025
105AQI
105AQI
16th April 2025
107AQI
107AQI
17th April 2025
97AQI
97AQI
18th April 2025
102AQI
102AQI
19th April 2025
96AQI
96AQI
20th April 2025
86AQI
86AQI
21st April 2025
86AQI
86AQI
22nd April 2025
97AQI
97AQI
23rd April 2025
98AQI
98AQI
24th April 2025
92AQI
92AQI
25th April 2025
85AQI
85AQI
26th April 2025
85AQI
85AQI
27th April 2025
75AQI
75AQI
28th April 2025
72AQI
72AQI
29th April 2025
83AQI
83AQI
30th April 2025
78AQI
78AQI
1st May 2025
67AQI
67AQI
2nd May 2025
89AQI
89AQI
3rd May 2025
85AQI
85AQI
4th May 2025
82AQI
82AQI
5th May 2025
85AQI
85AQI
6th May 2025
80AQI
80AQI
7th May 2025
81AQI
81AQI
8th May 2025
86AQI
86AQI
9th May 2025
82AQI
82AQI
10th May 2025
84AQI
84AQI
11th May 2025
59AQI
59AQI
12th May 2025
71AQI
71AQI
13th May 2025
69AQI
69AQI
14th May 2025
67AQI
67AQI
15th May 2025
62AQI
62AQI
16th May 2025
63AQI
63AQI
17th May 2025
58AQI
58AQI
18th May 2025
57AQI
57AQI
19th May 2025
61AQI
61AQI
20th May 2025
59AQI
59AQI
21st May 2025
58AQI
58AQI
22nd May 2025
57AQI
57AQI
23rd May 2025
55AQI
55AQI
24th May 2025
56AQI
56AQI
25th May 2025
56AQI
56AQI
26th May 2025
59AQI
59AQI
27th May 2025
79AQI
79AQI
28th May 2025
74AQI
74AQI
29th May 2025
60AQI
60AQI
30th May 2025
58AQI
58AQI
31st May 2025
58AQI
58AQI
1st June 2025
52AQI
52AQI
2nd June 2025
52AQI
52AQI
3rd June 2025
54AQI
54AQI
4th June 2025
61AQI
61AQI
5th June 2025
72AQI
72AQI
6th June 2025
61AQI
61AQI
7th June 2025
60AQI
60AQI
8th June 2025
60AQI
60AQI
9th June 2025
64AQI
64AQI
10th June 2025
59AQI
59AQI
11th June 2025
64AQI
64AQI
12th June 2025
63AQI
63AQI
13th June 2025
55AQI
55AQI
14th June 2025
64AQI
64AQI
15th June 2025
67AQI
67AQI
16th June 2025
66AQI
66AQI
17th June 2025
64AQI
64AQI
18th June 2025
58AQI
58AQI
19th June 2025
68AQI
68AQI
20th June 2025
69AQI
69AQI
21st June 2025
63AQI
63AQI
22nd June 2025
63AQI
63AQI
23rd June 2025
64AQI
64AQI
24th June 2025
64AQI
64AQI
25th June 2025
55AQI
55AQI
26th June 2025
58AQI
58AQI
27th June 2025
62AQI
62AQI
28th June 2025
56AQI
56AQI
29th June 2025
57AQI
57AQI
30th June 2025
54AQI
54AQI
1st July 2025
47AQI
47AQI
2nd July 2025
52AQI
52AQI
3rd July 2025
56AQI
56AQI
4th July 2025
64AQI
64AQI
5th July 2025
64AQI
64AQI
6th July 2025
59AQI
59AQI
7th July 2025
68AQI
68AQI
8th July 2025
65AQI
65AQI
9th July 2025
70AQI
70AQI
10th July 2025
59AQI
59AQI
11th July 2025
58AQI
58AQI
12th July 2025
56AQI
56AQI
13th July 2025
60AQI
60AQI
14th July 2025
76AQI
76AQI
15th July 2025
90AQI
90AQI
16th July 2025
64AQI
64AQI
17th July 2025
63AQI
63AQI
18th July 2025
62AQI
62AQI
19th July 2025
76AQI
76AQI
20th July 2025
65AQI
65AQI
21st July 2025
61AQI
61AQI
22nd July 2025
39AQI
39AQI
23rd July 2025
51AQI
51AQI
24th July 2025
50AQI
50AQI
25th July 2025
61AQI
61AQI
26th July 2025
65AQI
65AQI
27th July 2025
63AQI
63AQI
28th July 2025
68AQI
68AQI
29th July 2025
77AQI
77AQI
30th July 2025
71AQI
71AQI
31st July 2025
62AQI
62AQI
1st August 2025
54AQI
54AQI
2nd August 2025
55AQI
55AQI
3rd August 2025
56AQI
56AQI
4th August 2025
56AQI
56AQI
5th August 2025
54AQI
54AQI
6th August 2025
52AQI
52AQI
7th August 2025
58AQI
58AQI
8th August 2025
57AQI
57AQI
9th August 2025
53AQI
53AQI
10th August 2025
56AQI
56AQI
11th August 2025
55AQI
55AQI
12th August 2025
50AQI
50AQI
13th August 2025
52AQI
52AQI
14th August 2025
54AQI
54AQI
15th August 2025
43AQI
43AQI
16th August 2025
41AQI
41AQI
17th August 2025
39AQI
39AQI
18th August 2025
38AQI
38AQI
19th August 2025
41AQI
41AQI
20th August 2025
44AQI
44AQI
21st August 2025
47AQI
47AQI
22nd August 2025
45AQI
45AQI
23rd August 2025
46AQI
46AQI
24th August 2025
45AQI
45AQI
25th August 2025
36AQI
36AQI
26th August 2025
33AQI
33AQI
27th August 2025
40AQI
40AQI
28th August 2025
44AQI
44AQI
29th August 2025
46AQI
46AQI
30th August 2025
41AQI
41AQI
31st August 2025
40AQI
40AQI
1st September 2025
42AQI
42AQI
2nd September 2025
41AQI
41AQI
3rd September 2025
42AQI
42AQI
4th September 2025
44AQI
44AQI
5th September 2025
42AQI
42AQI
6th September 2025
40AQI
40AQI
7th September 2025
51AQI
51AQI
8th September 2025
55AQI
55AQI
9th September 2025
46AQI
46AQI
10th September 2025
51AQI
51AQI
11th September 2025
45AQI
45AQI
12th September 2025
40AQI
40AQI
13th September 2025
39AQI
39AQI
14th September 2025
41AQI
41AQI
15th September 2025
43AQI
43AQI
16th September 2025
49AQI
49AQI
17th September 2025
48AQI
48AQI
18th September 2025
50AQI
50AQI
19th September 2025
52AQI
52AQI
20th September 2025
58AQI
58AQI
21st September 2025
67AQI
67AQI
22nd September 2025
57AQI
57AQI
23rd September 2025
60AQI
60AQI
24th September 2025
52AQI
52AQI
25th September 2025
48AQI
48AQI
26th September 2025
51AQI
51AQI
27th September 2025
44AQI
44AQI
28th September 2025
48AQI
48AQI
29th September 2025
51AQI
51AQI
30th September 2025
47AQI
47AQI
1st October 2025
70AQI
70AQI
2nd October 2025
73AQI
73AQI
3rd October 2025
67AQI
67AQI
4th October 2025
93AQI
93AQI
5th October 2025
112AQI
112AQI
6th October 2025
104AQI
104AQI
7th October 2025
62AQI
62AQI
8th October 2025
70AQI
70AQI
9th October 2025
110AQI
110AQI
10th October 2025
116AQI
116AQI
11th October 2025
111AQI
111AQI
12th October 2025
115AQI
115AQI
13th October 2025
80AQI
80AQI
14th October 2025
76AQI
76AQI
15th October 2025
70AQI
70AQI
16th October 2025
94AQI
94AQI
17th October 2025
97AQI
97AQI
18th October 2025
106AQI
106AQI
19th October 2025
121AQI
121AQI
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
139AQI
111AQI
102AQI
100AQI
68AQI
61AQI
63AQI
47AQI
48AQI
92AQI
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
11
8
40
174
66
12
Highest AQI recorded in
January139AQI
Lowest AQI recorded in
August47AQI
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
March126AQI
Lowest AQI recorded in
August32AQI
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
January154AQI
Lowest AQI recorded in
November54AQI
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
December142AQI
Lowest AQI recorded in
April19AQI
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
January164AQI
Lowest AQI recorded in
July73AQI
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
December135AQI
Lowest AQI recorded in
September72AQI
Most & Least Polluted Years Over the Last 6 Years
Most Polluted Year Recorded
2023(Avg.)
106AQILeast Polluted Year Recorded
2025(Avg.)
83AQIHanoi US Embassy's annual 2025 AQI (83) shows an average percentage change of -15.8% (improved AQI) compared to previous years: 2020 (99), 2021 (100), 2022 (92), 2023 (106), 2024 (95).
