Son Tay, 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
Son Tay, Ha Noi, Vietnam
2023
2024
2025
AQI
.
Days
AQI Trends: Highest and Lowest
Highest AQI recorded on
17th Nov 2025
167AQILowest AQI recorded on
28th Nov 2023
29AQISame Day Analysis (20th November ):
On this day, AQI across the 3 years varied significantly: 2025 ranks 2nd highest AQI at 83 of Moderate air quality, showing improvement over 2024 on the same day.
Download 2024 Annual Data
World Air Quality Report
Day & Night AQI Trend: 21st Nov - 22nd Nov 2025
Son Tay, Ha Noi, Vietnam
AQI
Day
Night
.
6 AM21st Nov 2025
5 PM
5 AM22nd Nov 2025
Day time
Avg. Highest Time
12AMNaNth undefined
AQI
Avg. Lowest Time
12AMNaNth undefined
AQI
Night time
Avg. Highest Time
2AM22nd Nov
157AQI
Avg. Lowest Time
4PM21st Nov
66AQI
In the last 24 hours,
Son Tay's AQI reached its highest point of 157 at 2 AM during the Night, while the lowest point, 66, was recorded at 4 PM during the Night between 21st Nov and 22nd Nov 2025.
Day & Night AQI Trend : Oct - Nov 2025
Son Tay, 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 2025696 AMAQI
23rd Oct 2025707 AMAQI
23rd Oct 2025778 AMAQI
23rd Oct 2025639 AMAQI
23rd Oct 20257010 AMAQI
23rd Oct 20256711 AMAQI
23rd Oct 20256412 PMAQI
23rd Oct 2025621 PMAQI
23rd Oct 2025632 PMAQI
23rd Oct 2025643 PMAQI
23rd Oct 2025664 PMAQI
23rd Oct 2025685 PMAQI
23rd Oct 2025706 PMAQI
23rd Oct 2025737 PMAQI
23rd Oct 2025768 PMAQI
23rd Oct 2025789 PMAQI
23rd Oct 20258410 PMAQI
23rd Oct 20258811 PMAQI
24th Oct 20258212 AMAQI
24th Oct 2025791 AMAQI
24th Oct 2025812 AMAQI
24th Oct 2025833 AMAQI
24th Oct 2025844 AMAQI
24th Oct 2025825 AMAQI
20°C18/21°C
24th Oct 2025926 AMAQI
24th Oct 2025987 AMAQI
24th Oct 20251058 AMAQI
24th Oct 20251039 AMAQI
24th Oct 20259010 AMAQI
24th Oct 20258011 AMAQI
24th Oct 20256912 PMAQI
24th Oct 2025671 PMAQI
24th Oct 2025632 PMAQI
24th Oct 2025653 PMAQI
24th Oct 2025664 PMAQI
24th Oct 2025685 PMAQI
24th Oct 2025766 PMAQI
24th Oct 2025737 PMAQI
24th Oct 2025738 PMAQI
24th Oct 2025749 PMAQI
24th Oct 20257210 PMAQI
24th Oct 20258611 PMAQI
25th Oct 20259712 AMAQI
25th Oct 20251201 AMAQI
25th Oct 20251162 AMAQI
25th Oct 20251133 AMAQI
25th Oct 2025924 AMAQI
25th Oct 2025925 AMAQI
20°C18/21°C
25th Oct 2025936 AMAQI
25th Oct 2025877 AMAQI
25th Oct 2025868 AMAQI
25th Oct 2025849 AMAQI
25th Oct 20258810 AMAQI
25th Oct 20259611 AMAQI
25th Oct 20258912 PMAQI
25th Oct 2025871 PMAQI
25th Oct 2025892 PMAQI
25th Oct 2025903 PMAQI
25th Oct 2025944 PMAQI
25th Oct 2025975 PMAQI
25th Oct 20251026 PMAQI
25th Oct 20251227 PMAQI
25th Oct 2025978 PMAQI
25th Oct 20251149 PMAQI
25th Oct 202512710 PMAQI
25th Oct 202514111 PMAQI
26th Oct 202514812 AMAQI
26th Oct 20251541 AMAQI
26th Oct 20251432 AMAQI
26th Oct 20251403 AMAQI
26th Oct 20251334 AMAQI
26th Oct 20251325 AMAQI
22°C18/27°C
26th Oct 20251266 AMAQI
26th Oct 20251287 AMAQI
26th Oct 20251168 AMAQI
26th Oct 20251079 AMAQI
26th Oct 202510410 AMAQI
26th Oct 20259511 AMAQI
26th Oct 20259212 PMAQI
26th Oct 2025851 PMAQI
26th Oct 2025802 PMAQI
26th Oct 2025783 PMAQI
26th Oct 2025784 PMAQI
26th Oct 2025785 PMAQI
26th Oct 2025796 PMAQI
26th Oct 2025877 PMAQI
26th Oct 20251038 PMAQI
26th Oct 20251279 PMAQI
26th Oct 202513510 PMAQI
26th Oct 202511311 PMAQI
27th Oct 202510612 AMAQI
27th Oct 2025861 AMAQI
27th Oct 2025772 AMAQI
27th Oct 2025713 AMAQI
27th Oct 2025704 AMAQI
27th Oct 2025775 AMAQI
24°C22/27°C
27th Oct 2025756 AMAQI
27th Oct 2025737 AMAQI
27th Oct 2025688 AMAQI
27th Oct 2025699 AMAQI
27th Oct 20257010 AMAQI
27th Oct 20256911 AMAQI
27th Oct 20256712 PMAQI
27th Oct 2025681 PMAQI
27th Oct 2025652 PMAQI
27th Oct 2025643 PMAQI
27th Oct 2025654 PMAQI
27th Oct 2025665 PMAQI
27th Oct 2025666 PMAQI
27th Oct 2025687 PMAQI
27th Oct 2025798 PMAQI
27th Oct 2025949 PMAQI
27th Oct 20259710 PMAQI
27th Oct 202511711 PMAQI
28th Oct 202511812 AMAQI
28th Oct 20251341 AMAQI
28th Oct 20251462 AMAQI
28th Oct 20251393 AMAQI
28th Oct 20251584 AMAQI
28th Oct 20251275 AMAQI
24°C22/27°C
28th Oct 20251116 AMAQI
28th Oct 20251087 AMAQI
28th Oct 2025988 AMAQI
28th Oct 2025939 AMAQI
28th Oct 20259410 AMAQI
28th Oct 20258411 AMAQI
28th Oct 20259112 PMAQI
28th Oct 2025861 PMAQI
28th Oct 2025792 PMAQI
28th Oct 2025733 PMAQI
28th Oct 2025764 PMAQI
28th Oct 2025795 PMAQI
28th Oct 2025796 PMAQI
28th Oct 2025827 PMAQI
28th Oct 2025848 PMAQI
28th Oct 2025919 PMAQI
28th Oct 202511610 PMAQI
28th Oct 202515311 PMAQI
29th Oct 202515712 AMAQI
29th Oct 20251521 AMAQI
29th Oct 20251402 AMAQI
29th Oct 20251423 AMAQI
29th Oct 20251464 AMAQI
29th Oct 20251555 AMAQI
24°C21/28°C
29th Oct 20251546 AMAQI
29th Oct 20251447 AMAQI
29th Oct 20251398 AMAQI
29th Oct 20251409 AMAQI
29th Oct 202513510 AMAQI
29th Oct 202512611 AMAQI
29th Oct 202511212 PMAQI
29th Oct 2025941 PMAQI
29th Oct 2025892 PMAQI
29th Oct 2025853 PMAQI
29th Oct 2025864 PMAQI
29th Oct 2025965 PMAQI
29th Oct 20251086 PMAQI
29th Oct 20251277 PMAQI
29th Oct 20251228 PMAQI
29th Oct 20251249 PMAQI
29th Oct 202513610 PMAQI
29th Oct 202516011 PMAQI
30th Oct 202515912 AMAQI
30th Oct 20251531 AMAQI
30th Oct 20251442 AMAQI
30th Oct 20251413 AMAQI
30th Oct 20251434 AMAQI
30th Oct 20251415 AMAQI
24°C21/28°C
30th Oct 20251436 AMAQI
30th Oct 20251427 AMAQI
30th Oct 20251228 AMAQI
30th Oct 20251109 AMAQI
30th Oct 202510910 AMAQI
30th Oct 20259911 AMAQI
30th Oct 20259212 PMAQI
30th Oct 2025941 PMAQI
30th Oct 2025822 PMAQI
30th Oct 2025783 PMAQI
30th Oct 2025764 PMAQI
30th Oct 2025805 PMAQI
30th Oct 2025746 PMAQI
30th Oct 2025817 PMAQI
30th Oct 2025768 PMAQI
30th Oct 2025829 PMAQI
30th Oct 20257210 PMAQI
30th Oct 20257111 PMAQI
31st Oct 20256512 AMAQI
31st Oct 2025701 AMAQI
31st Oct 2025672 AMAQI
31st Oct 2025583 AMAQI
31st Oct 2025594 AMAQI
31st Oct 2025605 AMAQI
21°C21/22°C
31st Oct 2025646 AMAQI
31st Oct 2025687 AMAQI
31st Oct 2025628 AMAQI
31st Oct 2025649 AMAQI
31st Oct 20255910 AMAQI
31st Oct 20255411 AMAQI
31st Oct 20254712 PMAQI
31st Oct 2025401 PMAQI
31st Oct 2025462 PMAQI
31st Oct 2025373 PMAQI
31st Oct 2025454 PMAQI
31st Oct 2025485 PMAQI
31st Oct 2025516 PMAQI
31st Oct 2025537 PMAQI
31st Oct 2025558 PMAQI
31st Oct 2025569 PMAQI
31st Oct 20255610 PMAQI
31st Oct 20255711 PMAQI
1st Nov 20255212 AMAQI
1st Nov 2025431 AMAQI
1st Nov 2025372 AMAQI
1st Nov 2025343 AMAQI
1st Nov 2025284 AMAQI
1st Nov 2025245 AMAQI
20°C19/21°C
1st Nov 2025236 AMAQI
1st Nov 2025227 AMAQI
1st Nov 2025238 AMAQI
1st Nov 2025369 AMAQI
1st Nov 20254410 AMAQI
1st Nov 20254811 AMAQI
1st Nov 20255012 PMAQI
1st Nov 2025521 PMAQI
1st Nov 2025542 PMAQI
1st Nov 2025543 PMAQI
1st Nov 2025544 PMAQI
1st Nov 2025475 PMAQI
1st Nov 2025466 PMAQI
1st Nov 2025457 PMAQI
1st Nov 2025498 PMAQI
1st Nov 2025519 PMAQI
1st Nov 20255710 PMAQI
1st Nov 20258911 PMAQI
2nd Nov 20256012 AMAQI
2nd Nov 2025621 AMAQI
2nd Nov 2025612 AMAQI
2nd Nov 2025553 AMAQI
2nd Nov 2025554 AMAQI
2nd Nov 2025575 AMAQI
20°C19/20°C
2nd Nov 2025646 AMAQI
2nd Nov 2025707 AMAQI
2nd Nov 2025698 AMAQI
2nd Nov 2025639 AMAQI
2nd Nov 20255110 AMAQI
2nd Nov 20255211 AMAQI
2nd Nov 20255612 PMAQI
2nd Nov 2025571 PMAQI
2nd Nov 2025562 PMAQI
2nd Nov 2025623 PMAQI
2nd Nov 2025774 PMAQI
2nd Nov 2025575 PMAQI
2nd Nov 2025646 PMAQI
2nd Nov 2025707 PMAQI
2nd Nov 2025708 PMAQI
2nd Nov 2025689 PMAQI
2nd Nov 20256910 PMAQI
2nd Nov 20256111 PMAQI
3rd Nov 20255512 AMAQI
3rd Nov 2025541 AMAQI
3rd Nov 2025522 AMAQI
3rd Nov 2025453 AMAQI
3rd Nov 2025424 AMAQI
3rd Nov 2025405 AMAQI
19°C19/20°C
3rd Nov 2025356 AMAQI
3rd Nov 2025357 AMAQI
3rd Nov 2025358 AMAQI
3rd Nov 2025399 AMAQI
3rd Nov 20254310 AMAQI
3rd Nov 20254511 AMAQI
3rd Nov 20254412 PMAQI
3rd Nov 2025421 PMAQI
3rd Nov 2025422 PMAQI
3rd Nov 2025373 PMAQI
3rd Nov 2025444 PMAQI
3rd Nov 2025625 PMAQI
3rd Nov 2025366 PMAQI
3rd Nov 2025417 PMAQI
3rd Nov 2025488 PMAQI
3rd Nov 2025459 PMAQI
3rd Nov 20254610 PMAQI
3rd Nov 20253811 PMAQI
4th Nov 20253712 AMAQI
4th Nov 2025331 AMAQI
4th Nov 2025322 AMAQI
4th Nov 2025353 AMAQI
4th Nov 2025354 AMAQI
4th Nov 2025425 AMAQI
18°C17/18°C
4th Nov 2025386 AMAQI
4th Nov 2025387 AMAQI
4th Nov 2025468 AMAQI
4th Nov 2025459 AMAQI
4th Nov 20255010 AMAQI
4th Nov 20255011 AMAQI
4th Nov 20254812 PMAQI
4th Nov 2025481 PMAQI
4th Nov 2025472 PMAQI
4th Nov 2025473 PMAQI
4th Nov 2025444 PMAQI
4th Nov 2025505 PMAQI
4th Nov 2025566 PMAQI
4th Nov 2025577 PMAQI
4th Nov 2025598 PMAQI
4th Nov 2025639 PMAQI
4th Nov 20256910 PMAQI
4th Nov 20256811 PMAQI
5th Nov 20256612 AMAQI
5th Nov 2025611 AMAQI
5th Nov 2025562 AMAQI
5th Nov 2025533 AMAQI
5th Nov 2025524 AMAQI
5th Nov 2025515 AMAQI
18°C17/19°C
5th Nov 2025526 AMAQI
5th Nov 2025497 AMAQI
5th Nov 2025488 AMAQI
5th Nov 2025519 AMAQI
5th Nov 20255710 AMAQI
5th Nov 20255911 AMAQI
5th Nov 20256312 PMAQI
5th Nov 2025671 PMAQI
5th Nov 2025672 PMAQI
5th Nov 2025713 PMAQI
5th Nov 2025684 PMAQI
5th Nov 2025765 PMAQI
5th Nov 2025756 PMAQI
5th Nov 2025837 PMAQI
5th Nov 2025838 PMAQI
5th Nov 2025979 PMAQI
5th Nov 202510810 PMAQI
5th Nov 20259311 PMAQI
6th Nov 20259112 AMAQI
6th Nov 2025971 AMAQI
6th Nov 20251072 AMAQI
6th Nov 20251043 AMAQI
6th Nov 20251004 AMAQI
6th Nov 20251115 AMAQI
20°C18/25°C
6th Nov 2025976 AMAQI
6th Nov 2025827 AMAQI
6th Nov 2025868 AMAQI
6th Nov 20251079 AMAQI
6th Nov 202511010 AMAQI
6th Nov 20258911 AMAQI
6th Nov 20259412 PMAQI
6th Nov 20251021 PMAQI
6th Nov 20251002 PMAQI
6th Nov 20251003 PMAQI
6th Nov 2025964 PMAQI
6th Nov 2025945 PMAQI
6th Nov 2025906 PMAQI
6th Nov 2025917 PMAQI
6th Nov 20251048 PMAQI
6th Nov 20251279 PMAQI
6th Nov 202515310 PMAQI
6th Nov 202515511 PMAQI
7th Nov 202515512 AMAQI
7th Nov 20251491 AMAQI
7th Nov 20251452 AMAQI
7th Nov 20251503 AMAQI
7th Nov 20251544 AMAQI
7th Nov 20251555 AMAQI
22°C18/26°C
7th Nov 20251556 AMAQI
7th Nov 20251557 AMAQI
7th Nov 20251538 AMAQI
7th Nov 20251549 AMAQI
7th Nov 202515410 AMAQI
7th Nov 202514911 AMAQI
7th Nov 202511112 PMAQI
7th Nov 2025931 PMAQI
7th Nov 2025892 PMAQI
7th Nov 2025803 PMAQI
7th Nov 2025924 PMAQI
7th Nov 20251155 PMAQI
7th Nov 20251246 PMAQI
7th Nov 20251357 PMAQI
7th Nov 20251398 PMAQI
7th Nov 20251289 PMAQI
7th Nov 202511310 PMAQI
7th Nov 20259711 PMAQI
8th Nov 20259612 AMAQI
8th Nov 2025991 AMAQI
8th Nov 2025882 AMAQI
8th Nov 2025823 AMAQI
8th Nov 2025784 AMAQI
8th Nov 2025645 AMAQI
22°C22/23°C
8th Nov 2025686 AMAQI
8th Nov 2025707 AMAQI
8th Nov 2025698 AMAQI
8th Nov 2025759 AMAQI
8th Nov 20258310 AMAQI
8th Nov 20258011 AMAQI
8th Nov 20258512 PMAQI
8th Nov 2025781 PMAQI
8th Nov 2025702 PMAQI
8th Nov 2025643 PMAQI
8th Nov 2025654 PMAQI
8th Nov 2025615 PMAQI
8th Nov 2025566 PMAQI
8th Nov 2025577 PMAQI
8th Nov 2025628 PMAQI
8th Nov 2025769 PMAQI
8th Nov 20258810 PMAQI
8th Nov 20259511 PMAQI
9th Nov 20259512 AMAQI
9th Nov 2025931 AMAQI
9th Nov 2025982 AMAQI
9th Nov 2025943 AMAQI
9th Nov 2025904 AMAQI
9th Nov 2025845 AMAQI
24°C22/26°C
9th Nov 2025896 AMAQI
9th Nov 2025957 AMAQI
9th Nov 2025958 AMAQI
9th Nov 2025969 AMAQI
9th Nov 20259610 AMAQI
9th Nov 202510011 AMAQI
9th Nov 202510912 PMAQI
9th Nov 20251091 PMAQI
9th Nov 20251032 PMAQI
9th Nov 2025943 PMAQI
9th Nov 2025774 PMAQI
9th Nov 2025765 PMAQI
9th Nov 2025816 PMAQI
9th Nov 2025757 PMAQI
9th Nov 2025748 PMAQI
9th Nov 2025809 PMAQI
9th Nov 20258110 PMAQI
9th Nov 20257811 PMAQI
10th Nov 20257712 AMAQI
10th Nov 2025791 AMAQI
10th Nov 2025802 AMAQI
10th Nov 2025813 AMAQI
10th Nov 2025914 AMAQI
10th Nov 2025925 AMAQI
25°C22/29°C
10th Nov 2025906 AMAQI
10th Nov 2025917 AMAQI
10th Nov 2025948 AMAQI
10th Nov 2025839 AMAQI
10th Nov 202510310 AMAQI
10th Nov 20259011 AMAQI
10th Nov 20258212 PMAQI
10th Nov 2025761 PMAQI
10th Nov 2025752 PMAQI
10th Nov 2025713 PMAQI
10th Nov 2025614 PMAQI
10th Nov 2025635 PMAQI
10th Nov 2025636 PMAQI
10th Nov 2025637 PMAQI
10th Nov 2025638 PMAQI
10th Nov 2025639 PMAQI
10th Nov 20256310 PMAQI
10th Nov 20256711 PMAQI
11th Nov 20257012 AMAQI
11th Nov 2025701 AMAQI
11th Nov 2025682 AMAQI
11th Nov 2025673 AMAQI
11th Nov 2025664 AMAQI
11th Nov 2025645 AMAQI
24°C23/26°C
11th Nov 2025636 AMAQI
11th Nov 2025587 AMAQI
11th Nov 2025598 AMAQI
11th Nov 2025619 AMAQI
11th Nov 20256410 AMAQI
11th Nov 20256911 AMAQI
11th Nov 20257012 PMAQI
11th Nov 2025601 PMAQI
11th Nov 2025652 PMAQI
11th Nov 2025573 PMAQI
11th Nov 2025574 PMAQI
11th Nov 2025605 PMAQI
11th Nov 2025666 PMAQI
11th Nov 2025777 PMAQI
11th Nov 2025848 PMAQI
11th Nov 20251069 PMAQI
11th Nov 202510110 PMAQI
11th Nov 20259611 PMAQI
12th Nov 20258512 AMAQI
12th Nov 2025781 AMAQI
12th Nov 2025752 AMAQI
12th Nov 2025643 AMAQI
12th Nov 2025584 AMAQI
12th Nov 2025565 AMAQI
21°C20/21°C
12th Nov 2025556 AMAQI
12th Nov 2025557 AMAQI
12th Nov 2025568 AMAQI
12th Nov 2025599 AMAQI
12th Nov 20255910 AMAQI
12th Nov 20255811 AMAQI
12th Nov 20255612 PMAQI
12th Nov 2025561 PMAQI
12th Nov 2025572 PMAQI
12th Nov 2025603 PMAQI
12th Nov 2025694 PMAQI
12th Nov 2025945 PMAQI
12th Nov 2025986 PMAQI
12th Nov 20251017 PMAQI
12th Nov 20251088 PMAQI
12th Nov 20251269 PMAQI
12th Nov 202512710 PMAQI
12th Nov 202512611 PMAQI
13th Nov 202513112 AMAQI
13th Nov 20251191 AMAQI
13th Nov 20251042 AMAQI
13th Nov 2025893 AMAQI
13th Nov 2025824 AMAQI
13th Nov 2025795 AMAQI
22°C20/23°C
13th Nov 2025756 AMAQI
13th Nov 2025777 AMAQI
13th Nov 2025758 AMAQI
13th Nov 2025709 AMAQI
13th Nov 20257010 AMAQI
13th Nov 20256611 AMAQI
13th Nov 20256512 PMAQI
13th Nov 2025651 PMAQI
13th Nov 2025612 PMAQI
13th Nov 2025643 PMAQI
13th Nov 2025704 PMAQI
13th Nov 2025775 PMAQI
13th Nov 2025786 PMAQI
13th Nov 2025837 PMAQI
13th Nov 2025888 PMAQI
13th Nov 20251039 PMAQI
13th Nov 202512710 PMAQI
13th Nov 202513311 PMAQI
14th Nov 202511612 AMAQI
14th Nov 20251631 AMAQI
14th Nov 20251752 AMAQI
14th Nov 20251693 AMAQI
14th Nov 20251654 AMAQI
14th Nov 20251595 AMAQI
22°C20/26°C
14th Nov 20251516 AMAQI
14th Nov 20251527 AMAQI
14th Nov 20251598 AMAQI
14th Nov 20251559 AMAQI
14th Nov 202513510 AMAQI
14th Nov 202510511 AMAQI
14th Nov 20259112 PMAQI
14th Nov 2025791 PMAQI
14th Nov 2025762 PMAQI
14th Nov 2025693 PMAQI
14th Nov 2025614 PMAQI
14th Nov 2025645 PMAQI
14th Nov 2025686 PMAQI
14th Nov 2025767 PMAQI
14th Nov 2025838 PMAQI
14th Nov 2025979 PMAQI
14th Nov 202510010 PMAQI
14th Nov 202510611 PMAQI
15th Nov 202510112 AMAQI
15th Nov 20251001 AMAQI
15th Nov 20251162 AMAQI
15th Nov 20251623 AMAQI
15th Nov 20251654 AMAQI
15th Nov 20251655 AMAQI
21°C17/26°C
15th Nov 20251546 AMAQI
15th Nov 20251537 AMAQI
15th Nov 20251428 AMAQI
15th Nov 20251399 AMAQI
15th Nov 202515410 AMAQI
15th Nov 202515511 AMAQI
15th Nov 202513012 PMAQI
15th Nov 20251101 PMAQI
15th Nov 2025832 PMAQI
15th Nov 2025763 PMAQI
15th Nov 2025744 PMAQI
15th Nov 2025755 PMAQI
15th Nov 2025846 PMAQI
15th Nov 20251027 PMAQI
15th Nov 20251248 PMAQI
15th Nov 20251579 PMAQI
15th Nov 202516410 PMAQI
15th Nov 202517611 PMAQI
16th Nov 202518712 AMAQI
16th Nov 20251891 AMAQI
16th Nov 20251902 AMAQI
16th Nov 20251903 AMAQI
16th Nov 20251764 AMAQI
16th Nov 20251635 AMAQI
21°C17/26°C
16th Nov 20251626 AMAQI
16th Nov 20251747 AMAQI
16th Nov 20251698 AMAQI
16th Nov 20251639 AMAQI
16th Nov 202515810 AMAQI
16th Nov 202515511 AMAQI
16th Nov 202514612 PMAQI
16th Nov 20251441 PMAQI
16th Nov 20251402 PMAQI
16th Nov 20251373 PMAQI
16th Nov 20251274 PMAQI
16th Nov 20251255 PMAQI
16th Nov 20251246 PMAQI
16th Nov 20251247 PMAQI
16th Nov 20251318 PMAQI
16th Nov 20251489 PMAQI
16th Nov 202515510 PMAQI
16th Nov 202516111 PMAQI
17th Nov 202516512 AMAQI
17th Nov 20251791 AMAQI
17th Nov 20251812 AMAQI
17th Nov 20251873 AMAQI
17th Nov 20251744 AMAQI
17th Nov 20251705 AMAQI
21°C18/25°C
17th Nov 20251676 AMAQI
17th Nov 20251687 AMAQI
17th Nov 20251708 AMAQI
17th Nov 20251719 AMAQI
17th Nov 202516510 AMAQI
17th Nov 202516411 AMAQI
17th Nov 202516212 PMAQI
17th Nov 20251561 PMAQI
17th Nov 20251572 PMAQI
17th Nov 20251603 PMAQI
17th Nov 20251594 PMAQI
17th Nov 20251615 PMAQI
17th Nov 20251696 PMAQI
17th Nov 20251747 PMAQI
17th Nov 20251698 PMAQI
17th Nov 20251629 PMAQI
17th Nov 202515810 PMAQI
17th Nov 202515711 PMAQI
18th Nov 202515512 AMAQI
18th Nov 20251521 AMAQI
18th Nov 20251442 AMAQI
18th Nov 20251243 AMAQI
18th Nov 20251144 AMAQI
18th Nov 20251145 AMAQI
22°C20/24°C
18th Nov 20251106 AMAQI
18th Nov 20251047 AMAQI
18th Nov 2025988 AMAQI
18th Nov 2025989 AMAQI
18th Nov 20259010 AMAQI
18th Nov 20258911 AMAQI
18th Nov 20258912 PMAQI
18th Nov 2025791 PMAQI
18th Nov 2025682 PMAQI
18th Nov 2025593 PMAQI
18th Nov 2025574 PMAQI
18th Nov 2025475 PMAQI
18th Nov 2025516 PMAQI
18th Nov 2025527 PMAQI
18th Nov 2025528 PMAQI
18th Nov 2025429 PMAQI
18th Nov 20253310 PMAQI
18th Nov 20253211 PMAQI
19th Nov 20253112 AMAQI
19th Nov 2025361 AMAQI
19th Nov 2025522 AMAQI
19th Nov 2025543 AMAQI
19th Nov 2025554 AMAQI
19th Nov 2025515 AMAQI
17°C14/19°C
19th Nov 2025456 AMAQI
19th Nov 2025447 AMAQI
19th Nov 2025468 AMAQI
19th Nov 2025539 AMAQI
19th Nov 20255310 AMAQI
19th Nov 20255511 AMAQI
19th Nov 20255512 PMAQI
19th Nov 2025571 PMAQI
19th Nov 2025592 PMAQI
19th Nov 2025613 PMAQI
19th Nov 2025584 PMAQI
19th Nov 2025565 PMAQI
19th Nov 2025556 PMAQI
19th Nov 2025587 PMAQI
19th Nov 2025668 PMAQI
19th Nov 2025879 PMAQI
19th Nov 20257310 PMAQI
19th Nov 20257511 PMAQI
20th Nov 20257612 AMAQI
20th Nov 2025721 AMAQI
20th Nov 2025682 AMAQI
20th Nov 2025683 AMAQI
20th Nov 2025694 AMAQI
20th Nov 2025705 AMAQI
15°C14/15°C
20th Nov 2025796 AMAQI
20th Nov 2025837 AMAQI
20th Nov 2025808 AMAQI
20th Nov 2025799 AMAQI
20th Nov 20258010 AMAQI
20th Nov 20257411 AMAQI
20th Nov 20256912 PMAQI
20th Nov 2025641 PMAQI
20th Nov 2025712 PMAQI
20th Nov 2025683 PMAQI
20th Nov 2025744 PMAQI
20th Nov 2025755 PMAQI
20th Nov 2025766 PMAQI
20th Nov 2025787 PMAQI
20th Nov 2025918 PMAQI
20th Nov 20251209 PMAQI
20th Nov 202513210 PMAQI
20th Nov 202513811 PMAQI
21st Nov 202513612 AMAQI
21st Nov 20251081 AMAQI
21st Nov 20251172 AMAQI
21st Nov 2025963 AMAQI
21st Nov 2025864 AMAQI
21st Nov 2025825 AMAQI
17°C12/21°C
21st Nov 2025926 AMAQI
21st Nov 20251177 AMAQI
21st Nov 20251198 AMAQI
21st Nov 20251269 AMAQI
21st Nov 202512210 AMAQI
21st Nov 202511911 AMAQI
21st Nov 20259712 PMAQI
21st Nov 2025821 PMAQI
21st Nov 2025752 PMAQI
21st Nov 2025693 PMAQI
21st Nov 2025664 PMAQI
21st Nov 2025695 PMAQI
21st Nov 2025786 PMAQI
21st Nov 2025867 PMAQI
21st Nov 2025978 PMAQI
21st Nov 20251169 PMAQI
21st Nov 202513510 PMAQI
21st Nov 202514711 PMAQI
22nd Nov 202515312 AMAQI
22nd Nov 20251561 AMAQI
22nd Nov 20251572 AMAQI
22nd Nov 20251563 AMAQI
22nd Nov 20251534 AMAQI
22nd Nov 20251335 AMAQI
--°C/°C
22nd Nov 20251166 AMAQI
6 AM11 AM
5 PM
11 PM
5 AM
--°C/°C
Day time
Avg. Highest Time
6 AM - 10 AM
93AQI
5 hours / Day
150 hours / Month
Avg. Lowest Time
3 PM - 4 PM
73AQI
2 hours / Day
60 hours / Month
In the last 30 days, during the daytime, the highest AQI was between 6 AM to 10 AM (Avg. 93), while the lowest AQI was between 3 PM to 4 PM (Avg. 73).
Night time
Avg. Highest Time
11 PM
106AQI
1 hours / Day
30 hours / Month
Avg. Lowest Time
6 PM
78AQI
1 hours / Day
30 hours / Month
In the last 30 days, during the daytime, the highest AQI was between 11 PM to 11 PM (Avg. 106), while the lowest AQI was between 6 PM to 6 PM (Avg. 78).
2025 Days Vs Air Quality
Son Tay, Ha Noi, Vietnam
2025
14%
45
60%
195
21%
69
5%
15
Total number of days with different AQI categories in last 325 days in 2025 (40 days remaining)
Good
45 DaysModerate
195 DaysPoor
69 DaysUnhealthy
15 DaysSevere
0 DaysHazardous
0 DaysUnder WHO’s Safe Air Quality Limits: 14%
Health Risk Level:
Extreme
In 2025, 14% of 325 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
Son Tay, 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
162AQI
162AQI
2nd January 2025
198AQI
198AQI
3rd January 2025
164AQI
164AQI
4th January 2025
145AQI
145AQI
5th January 2025
144AQI
144AQI
6th January 2025
151AQI
151AQI
7th January 2025
155AQI
155AQI
8th January 2025
147AQI
147AQI
9th January 2025
152AQI
152AQI
10th January 2025
103AQI
103AQI
11th January 2025
115AQI
115AQI
12th January 2025
121AQI
121AQI
13th January 2025
144AQI
144AQI
14th January 2025
144AQI
144AQI
15th January 2025
146AQI
146AQI
16th January 2025
143AQI
143AQI
17th January 2025
148AQI
148AQI
18th January 2025
159AQI
159AQI
19th January 2025
152AQI
152AQI
20th January 2025
168AQI
168AQI
21st January 2025
148AQI
148AQI
22nd January 2025
151AQI
151AQI
23rd January 2025
130AQI
130AQI
24th January 2025
117AQI
117AQI
25th January 2025
108AQI
108AQI
26th January 2025
70AQI
70AQI
27th January 2025
87AQI
87AQI
28th January 2025
77AQI
77AQI
29th January 2025
106AQI
106AQI
30th January 2025
98AQI
98AQI
31st January 2025
81AQI
81AQI
1st February 2025
79AQI
79AQI
2nd February 2025
69AQI
69AQI
3rd February 2025
60AQI
60AQI
4th February 2025
65AQI
65AQI
5th February 2025
91AQI
91AQI
6th February 2025
113AQI
113AQI
7th February 2025
58AQI
58AQI
8th February 2025
76AQI
76AQI
9th February 2025
97AQI
97AQI
10th February 2025
138AQI
138AQI
11th February 2025
151AQI
151AQI
12th February 2025
167AQI
167AQI
13th February 2025
148AQI
148AQI
14th February 2025
146AQI
146AQI
15th February 2025
151AQI
151AQI
16th February 2025
102AQI
102AQI
17th February 2025
122AQI
122AQI
18th February 2025
90AQI
90AQI
19th February 2025
117AQI
117AQI
20th February 2025
130AQI
130AQI
21st February 2025
122AQI
122AQI
22nd February 2025
132AQI
132AQI
23rd February 2025
80AQI
80AQI
24th February 2025
84AQI
84AQI
25th February 2025
93AQI
93AQI
26th February 2025
86AQI
86AQI
27th February 2025
136AQI
136AQI
28th February 2025
108AQI
108AQI
1st March 2025
111AQI
111AQI
2nd March 2025
92AQI
92AQI
3rd March 2025
94AQI
94AQI
4th March 2025
96AQI
96AQI
5th March 2025
95AQI
95AQI
6th March 2025
76AQI
76AQI
7th March 2025
80AQI
80AQI
8th March 2025
101AQI
101AQI
9th March 2025
128AQI
128AQI
10th March 2025
142AQI
142AQI
11th March 2025
127AQI
127AQI
12th March 2025
111AQI
111AQI
13th March 2025
95AQI
95AQI
14th March 2025
97AQI
97AQI
15th March 2025
89AQI
89AQI
16th March 2025
73AQI
73AQI
17th March 2025
89AQI
89AQI
18th March 2025
88AQI
88AQI
19th March 2025
84AQI
84AQI
20th March 2025
99AQI
99AQI
21st March 2025
117AQI
117AQI
22nd March 2025
118AQI
118AQI
23rd March 2025
121AQI
121AQI
24th March 2025
126AQI
126AQI
25th March 2025
131AQI
131AQI
26th March 2025
114AQI
114AQI
27th March 2025
112AQI
112AQI
28th March 2025
112AQI
112AQI
29th March 2025
82AQI
82AQI
30th March 2025
67AQI
67AQI
31st March 2025
75AQI
75AQI
1st April 2025
94AQI
94AQI
2nd April 2025
120AQI
120AQI
3rd April 2025
110AQI
110AQI
4th April 2025
133AQI
133AQI
5th April 2025
106AQI
106AQI
6th April 2025
123AQI
123AQI
7th April 2025
111AQI
111AQI
8th April 2025
114AQI
114AQI
9th April 2025
93AQI
93AQI
10th April 2025
98AQI
98AQI
11th April 2025
97AQI
97AQI
12th April 2025
102AQI
102AQI
13th April 2025
83AQI
83AQI
14th April 2025
93AQI
93AQI
15th April 2025
98AQI
98AQI
16th April 2025
100AQI
100AQI
17th April 2025
98AQI
98AQI
18th April 2025
100AQI
100AQI
19th April 2025
95AQI
95AQI
20th April 2025
81AQI
81AQI
21st April 2025
82AQI
82AQI
22nd April 2025
91AQI
91AQI
23rd April 2025
93AQI
93AQI
24th April 2025
83AQI
83AQI
25th April 2025
77AQI
77AQI
26th April 2025
77AQI
77AQI
27th April 2025
69AQI
69AQI
28th April 2025
66AQI
66AQI
29th April 2025
73AQI
73AQI
30th April 2025
73AQI
73AQI
1st May 2025
60AQI
60AQI
2nd May 2025
74AQI
74AQI
3rd May 2025
75AQI
75AQI
4th May 2025
74AQI
74AQI
5th May 2025
77AQI
77AQI
6th May 2025
73AQI
73AQI
7th May 2025
75AQI
75AQI
8th May 2025
75AQI
75AQI
9th May 2025
78AQI
78AQI
10th May 2025
79AQI
79AQI
11th May 2025
53AQI
53AQI
12th May 2025
67AQI
67AQI
13th May 2025
67AQI
67AQI
14th May 2025
65AQI
65AQI
15th May 2025
60AQI
60AQI
16th May 2025
59AQI
59AQI
17th May 2025
56AQI
56AQI
18th May 2025
55AQI
55AQI
19th May 2025
57AQI
57AQI
20th May 2025
58AQI
58AQI
21st May 2025
56AQI
56AQI
22nd May 2025
56AQI
56AQI
23rd May 2025
56AQI
56AQI
24th May 2025
54AQI
54AQI
25th May 2025
55AQI
55AQI
26th May 2025
60AQI
60AQI
27th May 2025
83AQI
83AQI
28th May 2025
81AQI
81AQI
29th May 2025
64AQI
64AQI
30th May 2025
63AQI
63AQI
31st May 2025
59AQI
59AQI
1st June 2025
54AQI
54AQI
2nd June 2025
54AQI
54AQI
3rd June 2025
55AQI
55AQI
4th June 2025
58AQI
58AQI
5th June 2025
64AQI
64AQI
6th June 2025
59AQI
59AQI
7th June 2025
58AQI
58AQI
8th June 2025
58AQI
58AQI
9th June 2025
62AQI
62AQI
10th June 2025
57AQI
57AQI
11th June 2025
62AQI
62AQI
12th June 2025
61AQI
61AQI
13th June 2025
56AQI
56AQI
14th June 2025
64AQI
64AQI
15th June 2025
69AQI
69AQI
16th June 2025
67AQI
67AQI
17th June 2025
62AQI
62AQI
18th June 2025
54AQI
54AQI
19th June 2025
61AQI
61AQI
20th June 2025
66AQI
66AQI
21st June 2025
55AQI
55AQI
22nd June 2025
54AQI
54AQI
23rd June 2025
59AQI
59AQI
24th June 2025
62AQI
62AQI
25th June 2025
58AQI
58AQI
26th June 2025
57AQI
57AQI
27th June 2025
58AQI
58AQI
28th June 2025
53AQI
53AQI
29th June 2025
53AQI
53AQI
30th June 2025
53AQI
53AQI
1st July 2025
47AQI
47AQI
2nd July 2025
47AQI
47AQI
3rd July 2025
53AQI
53AQI
4th July 2025
58AQI
58AQI
5th July 2025
60AQI
60AQI
6th July 2025
58AQI
58AQI
7th July 2025
61AQI
61AQI
8th July 2025
58AQI
58AQI
9th July 2025
61AQI
61AQI
10th July 2025
54AQI
54AQI
11th July 2025
54AQI
54AQI
12th July 2025
53AQI
53AQI
13th July 2025
54AQI
54AQI
14th July 2025
61AQI
61AQI
15th July 2025
67AQI
67AQI
16th July 2025
58AQI
58AQI
17th July 2025
57AQI
57AQI
18th July 2025
58AQI
58AQI
19th July 2025
63AQI
63AQI
20th July 2025
58AQI
58AQI
21st July 2025
57AQI
57AQI
22nd July 2025
48AQI
48AQI
23rd July 2025
49AQI
49AQI
24th July 2025
49AQI
49AQI
25th July 2025
55AQI
55AQI
26th July 2025
55AQI
55AQI
27th July 2025
57AQI
57AQI
28th July 2025
63AQI
63AQI
29th July 2025
67AQI
67AQI
30th July 2025
66AQI
66AQI
31st July 2025
59AQI
59AQI
1st August 2025
52AQI
52AQI
2nd August 2025
54AQI
54AQI
3rd August 2025
56AQI
56AQI
4th August 2025
56AQI
56AQI
5th August 2025
54AQI
54AQI
6th August 2025
52AQI
52AQI
7th August 2025
54AQI
54AQI
8th August 2025
53AQI
53AQI
9th August 2025
50AQI
50AQI
10th August 2025
52AQI
52AQI
11th August 2025
54AQI
54AQI
12th August 2025
50AQI
50AQI
13th August 2025
52AQI
52AQI
14th August 2025
54AQI
54AQI
15th August 2025
44AQI
44AQI
16th August 2025
41AQI
41AQI
17th August 2025
39AQI
39AQI
18th August 2025
39AQI
39AQI
19th August 2025
42AQI
42AQI
20th August 2025
45AQI
45AQI
21st August 2025
48AQI
48AQI
22nd August 2025
46AQI
46AQI
23rd August 2025
45AQI
45AQI
24th August 2025
44AQI
44AQI
25th August 2025
35AQI
35AQI
26th August 2025
34AQI
34AQI
27th August 2025
40AQI
40AQI
28th August 2025
46AQI
46AQI
29th August 2025
46AQI
46AQI
30th August 2025
40AQI
40AQI
31st August 2025
40AQI
40AQI
1st September 2025
42AQI
42AQI
2nd September 2025
41AQI
41AQI
3rd September 2025
40AQI
40AQI
4th September 2025
49AQI
49AQI
5th September 2025
41AQI
41AQI
6th September 2025
40AQI
40AQI
7th September 2025
50AQI
50AQI
8th September 2025
56AQI
56AQI
9th September 2025
47AQI
47AQI
10th September 2025
50AQI
50AQI
11th September 2025
45AQI
45AQI
12th September 2025
41AQI
41AQI
13th September 2025
39AQI
39AQI
14th September 2025
42AQI
42AQI
15th September 2025
43AQI
43AQI
16th September 2025
47AQI
47AQI
17th September 2025
48AQI
48AQI
18th September 2025
49AQI
49AQI
19th September 2025
52AQI
52AQI
20th September 2025
61AQI
61AQI
21st September 2025
65AQI
65AQI
22nd September 2025
58AQI
58AQI
23rd September 2025
60AQI
60AQI
24th September 2025
53AQI
53AQI
25th September 2025
52AQI
52AQI
26th September 2025
62AQI
62AQI
27th September 2025
50AQI
50AQI
28th September 2025
52AQI
52AQI
29th September 2025
54AQI
54AQI
30th September 2025
58AQI
58AQI
1st October 2025
77AQI
77AQI
2nd October 2025
84AQI
84AQI
3rd October 2025
72AQI
72AQI
4th October 2025
103AQI
103AQI
5th October 2025
127AQI
127AQI
6th October 2025
114AQI
114AQI
7th October 2025
64AQI
64AQI
8th October 2025
75AQI
75AQI
9th October 2025
118AQI
118AQI
10th October 2025
129AQI
129AQI
11th October 2025
119AQI
119AQI
12th October 2025
129AQI
129AQI
13th October 2025
85AQI
85AQI
14th October 2025
82AQI
82AQI
15th October 2025
75AQI
75AQI
16th October 2025
93AQI
93AQI
17th October 2025
110AQI
110AQI
18th October 2025
116AQI
116AQI
19th October 2025
121AQI
121AQI
20th October 2025
90AQI
90AQI
21st October 2025
63AQI
63AQI
22nd October 2025
59AQI
59AQI
23rd October 2025
69AQI
69AQI
24th October 2025
79AQI
79AQI
25th October 2025
102AQI
102AQI
26th October 2025
113AQI
113AQI
27th October 2025
77AQI
77AQI
28th October 2025
106AQI
106AQI
29th October 2025
130AQI
130AQI
30th October 2025
107AQI
107AQI
31st October 2025
56AQI
56AQI
1st November 2025
45AQI
45AQI
2nd November 2025
62AQI
62AQI
3rd November 2025
44AQI
44AQI
4th November 2025
48AQI
48AQI
5th November 2025
68AQI
68AQI
6th November 2025
105AQI
105AQI
7th November 2025
132AQI
132AQI
8th November 2025
75AQI
75AQI
9th November 2025
89AQI
89AQI
10th November 2025
77AQI
77AQI
11th November 2025
71AQI
71AQI
12th November 2025
80AQI
80AQI
13th November 2025
88AQI
88AQI
14th November 2025
116AQI
116AQI
15th November 2025
129AQI
129AQI
16th November 2025
156AQI
156AQI
17th November 2025
167AQI
167AQI
18th November 2025
84AQI
84AQI
19th November 2025
56AQI
56AQI
20th November 2025
83AQI
83AQI
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
133AQI
108AQI
101AQI
94AQI
65AQI
59AQI
57AQI
47AQI
50AQI
95AQI
89AQI
No. of days
Jan.Feb.Mar.Apr.MayJun.Jul.Aug.Sep.Oct.Nov.Dec.Total Days
202581AQI
5
16
10
13
12
3
17
14
22
8
31
30
5
26
19
12
18
12
16
15
3
11
4
2
45
195
69
15
Highest AQI recorded in
January133AQI
Lowest AQI recorded in
August47AQI
202471AQI
4
12
1
1
1
3
9
2
28
21
10
29
6
15
5
3
7
8
14
2
1
25
4
15
13
3
76
122
36
8
Highest AQI recorded in
December115AQI
Lowest AQI recorded in
April2AQI
202334AQI
2
1
25
6
27
7
Highest AQI recorded in
November43AQI
Lowest AQI recorded in
December33AQI
20219AQI
2
2
12
16
Highest AQI recorded in
July9AQI
Lowest AQI recorded in
May7AQI
Most & Least Polluted Years Over the Last 4 Years
Most Polluted Year Recorded
2025(Avg.)
81AQILeast Polluted Year Recorded
2021(Avg.)
9AQISon Tay's annual 2025 AQI (81) shows an average percentage change of 326.1% (worsened AQI) compared to previous years: 2021 (9), 2023 (34), 2024 (71).
