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+
August Air Quality Analysis
Son Tay, Ha Noi, Vietnam
2024
2025
2026
AQI
.
Days
AQI Trends: Highest and Lowest
Highest AQI recorded on
4th Aug 2026
67AQILowest AQI recorded on
14th Aug 2024
28AQISame Day Analysis (4th August):
On this day, AQI across the 3 years varied significantly: 2026 ranks 1st highest AQI at 67 of Moderate air quality on the same day.
Day & Night AQI Trend: 4th Aug - 5th Aug 2026
Son Tay, Ha Noi, Vietnam
AQI
Day
Night
.
5 AM4th Aug 2026
6 PM
4 AM5th Aug 2026
Day time
Avg. Highest Time
6PM4th Aug
82AQI
Avg. Lowest Time
5AM4th Aug
44AQI
Night time
Avg. Highest Time
8PM4th Aug
88AQI
Avg. Lowest Time
3AM5th Aug
25AQI
In the last 24 hours,
Son Tay's AQI reached its highest point of 88 at 8 PM during the Night, while the lowest point, 25, was recorded at 3 AM during the Night between 4th Aug and 5th Aug 2026.
Day & Night AQI Trend : Jul - Aug 2026
Son Tay, Ha Noi, Vietnam
JulAug
07th - 08th08th - 09th09th - 10th10th - 11th11th - 12th12th - 13th13th - 14th14th - 15th15th - 16th16th - 17th17th - 18th18th - 19th19th - 20th20th - 21st21st - 22nd22nd - 23rd23rd - 24th24th - 25th25th - 26th26th - 27th27th - 28th28th - 29th29th - 30th30th - 31st31st - 01st01st - 02nd02nd - 03rd03rd - 04th04th - 05th05th
Day
Night
7th Jul 2026805 AMAQI
7th Jul 2026876 AMAQI
7th Jul 2026867 AMAQI
7th Jul 2026848 AMAQI
7th Jul 2026849 AMAQI
7th Jul 20268110 AMAQI
7th Jul 20267411 AMAQI
7th Jul 20267612 PMAQI
7th Jul 2026801 PMAQI
7th Jul 2026922 PMAQI
7th Jul 20261063 PMAQI
7th Jul 2026844 PMAQI
7th Jul 2026625 PMAQI
7th Jul 2026646 PMAQI
7th Jul 2026667 PMAQI
7th Jul 2026718 PMAQI
7th Jul 2026629 PMAQI
7th Jul 20267110 PMAQI
7th Jul 20266011 PMAQI
8th Jul 20266212 AMAQI
8th Jul 2026561 AMAQI
8th Jul 2026532 AMAQI
8th Jul 2026513 AMAQI
8th Jul 2026514 AMAQI
30°C26/36°C
8th Jul 2026485 AMAQI
8th Jul 2026606 AMAQI
8th Jul 2026527 AMAQI
8th Jul 2026608 AMAQI
8th Jul 2026659 AMAQI
8th Jul 20266010 AMAQI
8th Jul 20269611 AMAQI
8th Jul 20269212 PMAQI
8th Jul 2026851 PMAQI
8th Jul 2026872 PMAQI
8th Jul 2026763 PMAQI
8th Jul 2026684 PMAQI
8th Jul 2026665 PMAQI
8th Jul 2026646 PMAQI
8th Jul 2026577 PMAQI
8th Jul 2026538 PMAQI
8th Jul 2026599 PMAQI
8th Jul 20267010 PMAQI
8th Jul 20266911 PMAQI
9th Jul 20267412 AMAQI
9th Jul 2026741 AMAQI
9th Jul 2026762 AMAQI
9th Jul 2026863 AMAQI
9th Jul 2026904 AMAQI
31°C27/35°C
9th Jul 2026925 AMAQI
9th Jul 2026836 AMAQI
9th Jul 2026787 AMAQI
9th Jul 2026668 AMAQI
9th Jul 2026629 AMAQI
9th Jul 20266210 AMAQI
9th Jul 20266411 AMAQI
9th Jul 20267412 PMAQI
9th Jul 2026821 PMAQI
9th Jul 2026792 PMAQI
9th Jul 2026733 PMAQI
9th Jul 2026644 PMAQI
9th Jul 2026865 PMAQI
9th Jul 2026726 PMAQI
9th Jul 2026677 PMAQI
9th Jul 2026628 PMAQI
9th Jul 2026569 PMAQI
9th Jul 20264010 PMAQI
9th Jul 20264011 PMAQI
10th Jul 20264412 AMAQI
10th Jul 2026511 AMAQI
10th Jul 2026382 AMAQI
10th Jul 2026313 AMAQI
10th Jul 2026344 AMAQI
29°C27/34°C
10th Jul 2026365 AMAQI
10th Jul 2026446 AMAQI
10th Jul 2026427 AMAQI
10th Jul 2026448 AMAQI
10th Jul 2026499 AMAQI
10th Jul 20265410 AMAQI
10th Jul 20266011 AMAQI
10th Jul 20266412 PMAQI
10th Jul 2026601 PMAQI
10th Jul 2026582 PMAQI
10th Jul 2026563 PMAQI
10th Jul 2026534 PMAQI
10th Jul 2026625 PMAQI
10th Jul 2026606 PMAQI
10th Jul 2026287 PMAQI
10th Jul 2026408 PMAQI
10th Jul 2026449 PMAQI
10th Jul 20263610 PMAQI
10th Jul 20264511 PMAQI
11th Jul 20262912 AMAQI
11th Jul 2026461 AMAQI
11th Jul 2026682 AMAQI
11th Jul 2026843 AMAQI
11th Jul 2026994 AMAQI
29°C26/35°C
11th Jul 2026835 AMAQI
11th Jul 2026826 AMAQI
11th Jul 20261007 AMAQI
11th Jul 2026968 AMAQI
11th Jul 20261049 AMAQI
11th Jul 20268510 AMAQI
11th Jul 20269811 AMAQI
11th Jul 20268812 PMAQI
11th Jul 2026871 PMAQI
11th Jul 2026982 PMAQI
11th Jul 20261003 PMAQI
11th Jul 2026904 PMAQI
11th Jul 2026855 PMAQI
11th Jul 2026986 PMAQI
11th Jul 20261087 PMAQI
11th Jul 2026978 PMAQI
11th Jul 20261059 PMAQI
11th Jul 202611010 PMAQI
11th Jul 202610611 PMAQI
12th Jul 202610612 AMAQI
12th Jul 20261081 AMAQI
12th Jul 20261062 AMAQI
12th Jul 20261143 AMAQI
12th Jul 20261124 AMAQI
30°C27/35°C
12th Jul 20261155 AMAQI
12th Jul 20261166 AMAQI
12th Jul 20261197 AMAQI
12th Jul 20261228 AMAQI
12th Jul 2026839 AMAQI
12th Jul 20268310 AMAQI
12th Jul 20267611 AMAQI
12th Jul 20267012 PMAQI
12th Jul 2026741 PMAQI
12th Jul 2026842 PMAQI
12th Jul 2026903 PMAQI
12th Jul 2026844 PMAQI
12th Jul 2026805 PMAQI
12th Jul 2026766 PMAQI
12th Jul 2026647 PMAQI
12th Jul 2026628 PMAQI
12th Jul 2026669 PMAQI
12th Jul 20268010 PMAQI
12th Jul 20268811 PMAQI
13th Jul 20268712 AMAQI
13th Jul 2026921 AMAQI
13th Jul 2026842 AMAQI
13th Jul 2026863 AMAQI
13th Jul 2026834 AMAQI
30°C27/34°C
13th Jul 2026845 AMAQI
13th Jul 2026866 AMAQI
13th Jul 2026907 AMAQI
13th Jul 2026908 AMAQI
13th Jul 2026839 AMAQI
13th Jul 202610210 AMAQI
13th Jul 202613511 AMAQI
13th Jul 202612212 PMAQI
13th Jul 20261261 PMAQI
13th Jul 20261182 PMAQI
13th Jul 20261123 PMAQI
13th Jul 2026904 PMAQI
13th Jul 2026815 PMAQI
13th Jul 2026846 PMAQI
13th Jul 2026967 PMAQI
13th Jul 2026948 PMAQI
13th Jul 2026789 PMAQI
13th Jul 20266710 PMAQI
13th Jul 20265511 PMAQI
14th Jul 20264612 AMAQI
14th Jul 2026401 AMAQI
14th Jul 2026372 AMAQI
14th Jul 2026363 AMAQI
14th Jul 2026384 AMAQI
31°C27/35°C
14th Jul 2026465 AMAQI
14th Jul 2026496 AMAQI
14th Jul 2026607 AMAQI
14th Jul 2026678 AMAQI
14th Jul 2026709 AMAQI
14th Jul 20266710 AMAQI
14th Jul 20266011 AMAQI
14th Jul 20266212 PMAQI
14th Jul 2026661 PMAQI
14th Jul 2026742 PMAQI
14th Jul 2026723 PMAQI
14th Jul 2026644 PMAQI
14th Jul 2026675 PMAQI
14th Jul 2026756 PMAQI
14th Jul 2026677 PMAQI
14th Jul 2026538 PMAQI
14th Jul 2026629 PMAQI
14th Jul 20266510 PMAQI
14th Jul 20266511 PMAQI
15th Jul 20268112 AMAQI
15th Jul 2026621 AMAQI
15th Jul 2026622 AMAQI
15th Jul 2026563 AMAQI
15th Jul 2026534 AMAQI
31°C28/36°C
15th Jul 2026555 AMAQI
15th Jul 2026576 AMAQI
15th Jul 2026557 AMAQI
15th Jul 2026538 AMAQI
15th Jul 2026579 AMAQI
15th Jul 20265910 AMAQI
15th Jul 20266011 AMAQI
15th Jul 20266412 PMAQI
15th Jul 2026641 PMAQI
15th Jul 2026562 PMAQI
15th Jul 2026583 PMAQI
15th Jul 2026694 PMAQI
15th Jul 2026805 PMAQI
15th Jul 2026806 PMAQI
15th Jul 2026717 PMAQI
15th Jul 2026608 PMAQI
15th Jul 2026719 PMAQI
15th Jul 20266910 PMAQI
15th Jul 20268211 PMAQI
16th Jul 20268312 AMAQI
16th Jul 2026831 AMAQI
16th Jul 2026782 AMAQI
16th Jul 2026783 AMAQI
16th Jul 2026724 AMAQI
31°C28/34°C
16th Jul 2026785 AMAQI
16th Jul 2026906 AMAQI
16th Jul 2026857 AMAQI
16th Jul 2026818 AMAQI
16th Jul 2026789 AMAQI
16th Jul 20267110 AMAQI
16th Jul 20266411 AMAQI
16th Jul 20266012 PMAQI
16th Jul 2026641 PMAQI
16th Jul 2026622 PMAQI
16th Jul 2026593 PMAQI
16th Jul 2026644 PMAQI
16th Jul 2026735 PMAQI
16th Jul 2026836 PMAQI
16th Jul 2026687 PMAQI
16th Jul 2026488 PMAQI
16th Jul 2026409 PMAQI
16th Jul 20264610 PMAQI
16th Jul 20263311 PMAQI
17th Jul 20264412 AMAQI
17th Jul 2026501 AMAQI
17th Jul 2026502 AMAQI
17th Jul 2026503 AMAQI
17th Jul 2026464 AMAQI
31°C28/35°C
17th Jul 2026505 AMAQI
17th Jul 2026526 AMAQI
17th Jul 2026517 AMAQI
17th Jul 2026428 AMAQI
17th Jul 2026449 AMAQI
17th Jul 20263810 AMAQI
17th Jul 20264611 AMAQI
17th Jul 20265612 PMAQI
17th Jul 2026571 PMAQI
17th Jul 2026542 PMAQI
17th Jul 2026443 PMAQI
17th Jul 2026314 PMAQI
17th Jul 2026275 PMAQI
17th Jul 2026266 PMAQI
17th Jul 2026297 PMAQI
17th Jul 2026308 PMAQI
17th Jul 2026269 PMAQI
17th Jul 20263110 PMAQI
17th Jul 20263211 PMAQI
18th Jul 20264212 AMAQI
18th Jul 2026481 AMAQI
18th Jul 2026472 AMAQI
18th Jul 2026533 AMAQI
18th Jul 2026514 AMAQI
29°C28/31°C
18th Jul 2026455 AMAQI
18th Jul 2026446 AMAQI
18th Jul 2026427 AMAQI
18th Jul 2026438 AMAQI
18th Jul 2026459 AMAQI
18th Jul 20265010 AMAQI
18th Jul 20265011 AMAQI
18th Jul 20264712 PMAQI
18th Jul 2026511 PMAQI
18th Jul 2026442 PMAQI
18th Jul 2026383 PMAQI
18th Jul 2026424 PMAQI
18th Jul 2026425 PMAQI
18th Jul 2026446 PMAQI
18th Jul 2026557 PMAQI
18th Jul 2026538 PMAQI
18th Jul 2026589 PMAQI
18th Jul 20266210 PMAQI
18th Jul 20266011 PMAQI
19th Jul 20264812 AMAQI
19th Jul 2026431 AMAQI
19th Jul 2026422 AMAQI
19th Jul 2026403 AMAQI
19th Jul 2026314 AMAQI
31°C27/36°C
19th Jul 2026315 AMAQI
19th Jul 2026326 AMAQI
19th Jul 2026447 AMAQI
19th Jul 2026548 AMAQI
19th Jul 2026669 AMAQI
19th Jul 20266710 AMAQI
19th Jul 20266611 AMAQI
19th Jul 20266312 PMAQI
19th Jul 2026601 PMAQI
19th Jul 2026492 PMAQI
19th Jul 2026383 PMAQI
19th Jul 2026304 PMAQI
19th Jul 2026295 PMAQI
19th Jul 2026296 PMAQI
19th Jul 2026517 PMAQI
19th Jul 2026538 PMAQI
19th Jul 2026589 PMAQI
19th Jul 20266710 PMAQI
19th Jul 20267011 PMAQI
20th Jul 20267312 AMAQI
20th Jul 2026751 AMAQI
20th Jul 2026722 AMAQI
20th Jul 2026683 AMAQI
20th Jul 2026754 AMAQI
30°C28/34°C
20th Jul 2026825 AMAQI
20th Jul 2026926 AMAQI
20th Jul 2026887 AMAQI
20th Jul 2026868 AMAQI
20th Jul 20261149 AMAQI
20th Jul 202612010 AMAQI
20th Jul 202611811 AMAQI
20th Jul 20268912 PMAQI
20th Jul 2026881 PMAQI
20th Jul 2026722 PMAQI
20th Jul 2026573 PMAQI
20th Jul 2026464 PMAQI
20th Jul 2026365 PMAQI
20th Jul 2026446 PMAQI
20th Jul 2026487 PMAQI
20th Jul 2026588 PMAQI
20th Jul 2026649 PMAQI
20th Jul 20267110 PMAQI
20th Jul 20268211 PMAQI
21st Jul 202611212 AMAQI
21st Jul 20261061 AMAQI
21st Jul 2026922 AMAQI
21st Jul 2026923 AMAQI
21st Jul 2026974 AMAQI
29°C26/35°C
21st Jul 20261025 AMAQI
21st Jul 20261156 AMAQI
21st Jul 20261157 AMAQI
21st Jul 20261068 AMAQI
21st Jul 20261089 AMAQI
21st Jul 202611811 AMAQI
21st Jul 202611512 PMAQI
21st Jul 20261291 PMAQI
21st Jul 20261082 PMAQI
21st Jul 2026973 PMAQI
21st Jul 20261054 PMAQI
21st Jul 20261255 PMAQI
21st Jul 20261116 PMAQI
21st Jul 20261127 PMAQI
21st Jul 20261058 PMAQI
21st Jul 2026879 PMAQI
21st Jul 20268210 PMAQI
21st Jul 20268611 PMAQI
22nd Jul 20268812 AMAQI
22nd Jul 2026941 AMAQI
22nd Jul 20261022 AMAQI
22nd Jul 2026923 AMAQI
22nd Jul 2026884 AMAQI
28°C27/33°C
22nd Jul 20261025 AMAQI
22nd Jul 20261216 AMAQI
22nd Jul 20261207 AMAQI
22nd Jul 20261098 AMAQI
22nd Jul 2026959 AMAQI
22nd Jul 202610410 AMAQI
22nd Jul 202610011 AMAQI
22nd Jul 202610812 PMAQI
22nd Jul 20261141 PMAQI
22nd Jul 2026922 PMAQI
22nd Jul 2026703 PMAQI
22nd Jul 2026664 PMAQI
22nd Jul 2026765 PMAQI
22nd Jul 2026766 PMAQI
22nd Jul 2026747 PMAQI
22nd Jul 2026788 PMAQI
22nd Jul 2026689 PMAQI
22nd Jul 20266810 PMAQI
22nd Jul 20265211 PMAQI
23rd Jul 20264612 AMAQI
23rd Jul 2026381 AMAQI
23rd Jul 2026442 AMAQI
23rd Jul 2026493 AMAQI
23rd Jul 2026624 AMAQI
30°C26/36°C
23rd Jul 2026735 AMAQI
23rd Jul 2026586 AMAQI
23rd Jul 2026607 AMAQI
23rd Jul 2026648 AMAQI
23rd Jul 2026719 AMAQI
23rd Jul 20266710 AMAQI
23rd Jul 20267011 AMAQI
23rd Jul 20267612 PMAQI
23rd Jul 2026761 PMAQI
23rd Jul 2026752 PMAQI
23rd Jul 2026663 PMAQI
23rd Jul 2026724 PMAQI
23rd Jul 2026745 PMAQI
23rd Jul 2026806 PMAQI
23rd Jul 2026807 PMAQI
23rd Jul 2026718 PMAQI
23rd Jul 2026629 PMAQI
23rd Jul 20265010 PMAQI
23rd Jul 20265411 PMAQI
24th Jul 20265512 AMAQI
24th Jul 2026551 AMAQI
24th Jul 2026362 AMAQI
24th Jul 2026343 AMAQI
24th Jul 2026384 AMAQI
30°C27/36°C
24th Jul 2026425 AMAQI
24th Jul 2026346 AMAQI
24th Jul 2026317 AMAQI
24th Jul 2026388 AMAQI
24th Jul 2026469 AMAQI
24th Jul 20265110 AMAQI
24th Jul 20265311 AMAQI
24th Jul 20265512 PMAQI
24th Jul 2026541 PMAQI
24th Jul 2026542 PMAQI
24th Jul 2026543 PMAQI
24th Jul 2026624 PMAQI
24th Jul 2026645 PMAQI
24th Jul 2026636 PMAQI
24th Jul 2026707 PMAQI
24th Jul 2026788 PMAQI
24th Jul 2026809 PMAQI
24th Jul 20267310 PMAQI
24th Jul 20268011 PMAQI
25th Jul 20267812 AMAQI
25th Jul 2026741 AMAQI
25th Jul 2026732 AMAQI
25th Jul 2026743 AMAQI
25th Jul 2026734 AMAQI
29°C26/33°C
25th Jul 2026795 AMAQI
25th Jul 2026826 AMAQI
25th Jul 2026607 AMAQI
25th Jul 2026468 AMAQI
25th Jul 2026449 AMAQI
25th Jul 20265510 AMAQI
25th Jul 20265011 AMAQI
25th Jul 20264912 PMAQI
25th Jul 2026511 PMAQI
25th Jul 2026502 PMAQI
25th Jul 2026503 PMAQI
25th Jul 2026584 PMAQI
25th Jul 2026695 PMAQI
25th Jul 2026896 PMAQI
25th Jul 2026987 PMAQI
25th Jul 2026948 PMAQI
25th Jul 20261059 PMAQI
25th Jul 202610010 PMAQI
25th Jul 202610511 PMAQI
26th Jul 202610412 AMAQI
26th Jul 2026971 AMAQI
26th Jul 2026922 AMAQI
26th Jul 2026823 AMAQI
26th Jul 2026924 AMAQI
30°C26/34°C
26th Jul 20261055 AMAQI
26th Jul 20261096 AMAQI
26th Jul 20261047 AMAQI
26th Jul 2026988 AMAQI
26th Jul 2026949 AMAQI
26th Jul 20269610 AMAQI
26th Jul 202610011 AMAQI
26th Jul 202610212 PMAQI
26th Jul 2026981 PMAQI
26th Jul 2026822 PMAQI
26th Jul 2026743 PMAQI
26th Jul 2026794 PMAQI
26th Jul 2026795 PMAQI
26th Jul 2026846 PMAQI
26th Jul 2026867 PMAQI
26th Jul 2026768 PMAQI
26th Jul 2026679 PMAQI
26th Jul 20266610 PMAQI
26th Jul 20267311 PMAQI
27th Jul 20267412 AMAQI
27th Jul 2026761 AMAQI
27th Jul 2026692 AMAQI
27th Jul 2026593 AMAQI
27th Jul 2026594 AMAQI
31°C26/36°C
27th Jul 2026625 AMAQI
27th Jul 2026626 AMAQI
27th Jul 2026657 AMAQI
27th Jul 2026598 AMAQI
27th Jul 2026669 AMAQI
27th Jul 20266610 AMAQI
27th Jul 20268011 AMAQI
27th Jul 20267612 PMAQI
27th Jul 2026711 PMAQI
27th Jul 2026582 PMAQI
27th Jul 2026443 PMAQI
27th Jul 2026364 PMAQI
27th Jul 2026365 PMAQI
27th Jul 2026386 PMAQI
27th Jul 2026367 PMAQI
27th Jul 2026388 PMAQI
27th Jul 2026629 PMAQI
27th Jul 20265710 PMAQI
27th Jul 20266611 PMAQI
28th Jul 20266512 AMAQI
28th Jul 2026721 AMAQI
28th Jul 2026602 AMAQI
28th Jul 2026423 AMAQI
28th Jul 2026234 AMAQI
30°C28/35°C
28th Jul 2026275 AMAQI
28th Jul 2026276 AMAQI
28th Jul 2026217 AMAQI
28th Jul 2026258 AMAQI
28th Jul 2026449 AMAQI
28th Jul 20265110 AMAQI
28th Jul 20263811 AMAQI
28th Jul 20264812 PMAQI
28th Jul 2026541 PMAQI
28th Jul 2026572 PMAQI
28th Jul 2026463 PMAQI
28th Jul 2026514 PMAQI
28th Jul 2026535 PMAQI
28th Jul 2026576 PMAQI
28th Jul 2026557 PMAQI
28th Jul 2026428 PMAQI
28th Jul 2026389 PMAQI
28th Jul 20264010 PMAQI
28th Jul 20264611 PMAQI
29th Jul 20265112 AMAQI
29th Jul 2026531 AMAQI
29th Jul 2026572 AMAQI
29th Jul 2026563 AMAQI
29th Jul 2026644 AMAQI
26°C25/29°C
29th Jul 2026485 AMAQI
29th Jul 2026516 AMAQI
29th Jul 2026657 AMAQI
29th Jul 2026528 AMAQI
29th Jul 2026429 AMAQI
29th Jul 20262310 AMAQI
29th Jul 20265711 AMAQI
29th Jul 20266212 PMAQI
29th Jul 2026641 PMAQI
29th Jul 2026582 PMAQI
29th Jul 2026493 PMAQI
29th Jul 2026404 PMAQI
29th Jul 2026495 PMAQI
29th Jul 2026506 PMAQI
29th Jul 2026537 PMAQI
29th Jul 2026568 PMAQI
29th Jul 2026609 PMAQI
29th Jul 20266310 PMAQI
29th Jul 20266711 PMAQI
30th Jul 20267212 AMAQI
30th Jul 2026821 AMAQI
30th Jul 2026872 AMAQI
30th Jul 2026903 AMAQI
30th Jul 2026834 AMAQI
28°C25/32°C
30th Jul 2026875 AMAQI
30th Jul 2026946 AMAQI
30th Jul 2026927 AMAQI
30th Jul 2026878 AMAQI
30th Jul 2026789 AMAQI
30th Jul 20266710 AMAQI
30th Jul 20266711 AMAQI
30th Jul 20265912 PMAQI
30th Jul 2026541 PMAQI
30th Jul 2026522 PMAQI
30th Jul 2026443 PMAQI
30th Jul 2026404 PMAQI
30th Jul 2026465 PMAQI
30th Jul 2026426 PMAQI
30th Jul 2026547 PMAQI
30th Jul 2026548 PMAQI
30th Jul 2026609 PMAQI
30th Jul 20266510 PMAQI
30th Jul 20266711 PMAQI
31st Jul 20267112 AMAQI
31st Jul 2026741 AMAQI
31st Jul 2026602 AMAQI
31st Jul 2026563 AMAQI
31st Jul 2026534 AMAQI
28°C26/33°C
31st Jul 2026585 AMAQI
31st Jul 2026326 AMAQI
31st Jul 2026247 AMAQI
31st Jul 2026238 AMAQI
31st Jul 2026279 AMAQI
31st Jul 20264010 AMAQI
31st Jul 20264411 AMAQI
31st Jul 20264612 PMAQI
31st Jul 2026461 PMAQI
31st Jul 2026472 PMAQI
31st Jul 2026533 PMAQI
31st Jul 2026544 PMAQI
31st Jul 2026545 PMAQI
31st Jul 2026516 PMAQI
31st Jul 2026547 PMAQI
31st Jul 2026498 PMAQI
31st Jul 2026499 PMAQI
31st Jul 20265410 PMAQI
31st Jul 20265311 PMAQI
1st Aug 20265112 AMAQI
1st Aug 2026401 AMAQI
1st Aug 2026252 AMAQI
1st Aug 2026263 AMAQI
1st Aug 2026254 AMAQI
28°C26/31°C
1st Aug 2026405 AMAQI
1st Aug 2026496 AMAQI
1st Aug 2026467 AMAQI
1st Aug 2026478 AMAQI
1st Aug 2026529 AMAQI
1st Aug 20265710 AMAQI
1st Aug 20266811 AMAQI
1st Aug 20265712 PMAQI
1st Aug 2026581 PMAQI
1st Aug 2026512 PMAQI
1st Aug 2026403 PMAQI
1st Aug 2026404 PMAQI
1st Aug 2026515 PMAQI
1st Aug 2026596 PMAQI
1st Aug 2026607 PMAQI
1st Aug 2026548 PMAQI
1st Aug 2026599 PMAQI
1st Aug 20264810 PMAQI
1st Aug 20264011 PMAQI
2nd Aug 20263812 AMAQI
2nd Aug 2026361 AMAQI
2nd Aug 2026342 AMAQI
2nd Aug 2026293 AMAQI
2nd Aug 2026404 AMAQI
28°C25/32°C
2nd Aug 2026495 AMAQI
2nd Aug 2026446 AMAQI
2nd Aug 2026547 AMAQI
2nd Aug 2026608 AMAQI
2nd Aug 2026719 AMAQI
2nd Aug 20266610 AMAQI
2nd Aug 20267111 AMAQI
2nd Aug 20266912 PMAQI
2nd Aug 2026581 PMAQI
2nd Aug 2026602 PMAQI
2nd Aug 2026683 PMAQI
2nd Aug 2026534 PMAQI
2nd Aug 2026645 PMAQI
2nd Aug 2026696 PMAQI
2nd Aug 2026667 PMAQI
2nd Aug 2026668 PMAQI
2nd Aug 2026709 PMAQI
2nd Aug 20267210 PMAQI
2nd Aug 20267211 PMAQI
3rd Aug 20267212 AMAQI
3rd Aug 2026701 AMAQI
3rd Aug 2026622 AMAQI
3rd Aug 2026583 AMAQI
3rd Aug 2026504 AMAQI
29°C26/33°C
3rd Aug 2026605 AMAQI
3rd Aug 2026556 AMAQI
3rd Aug 2026647 AMAQI
3rd Aug 2026528 AMAQI
3rd Aug 2026799 AMAQI
3rd Aug 20267510 AMAQI
3rd Aug 20267211 AMAQI
3rd Aug 20266712 PMAQI
3rd Aug 2026621 PMAQI
3rd Aug 2026642 PMAQI
3rd Aug 2026623 PMAQI
3rd Aug 2026584 PMAQI
3rd Aug 2026535 PMAQI
3rd Aug 2026526 PMAQI
3rd Aug 2026627 PMAQI
3rd Aug 2026698 PMAQI
3rd Aug 2026689 PMAQI
3rd Aug 20267810 PMAQI
3rd Aug 20267411 PMAQI
4th Aug 20267012 AMAQI
4th Aug 2026601 AMAQI
4th Aug 2026572 AMAQI
4th Aug 2026533 AMAQI
4th Aug 2026474 AMAQI
29°C26/34°C
4th Aug 2026445 AMAQI
4th Aug 2026516 AMAQI
4th Aug 2026527 AMAQI
4th Aug 2026488 AMAQI
4th Aug 2026649 AMAQI
4th Aug 20266810 AMAQI
4th Aug 20266811 AMAQI
4th Aug 20267412 PMAQI
4th Aug 2026741 PMAQI
4th Aug 2026712 PMAQI
4th Aug 2026723 PMAQI
4th Aug 2026764 PMAQI
4th Aug 2026785 PMAQI
4th Aug 2026826 PMAQI
4th Aug 2026827 PMAQI
4th Aug 2026888 PMAQI
4th Aug 2026809 PMAQI
4th Aug 20267810 PMAQI
4th Aug 20267811 PMAQI
5th Aug 20266412 AMAQI
5th Aug 2026551 AMAQI
5th Aug 2026362 AMAQI
5th Aug 2026253 AMAQI
5th Aug 2026334 AMAQI
29°C26/33°C
5th Aug 2026505 AMAQI
5 AM5th Aug 2026626 AMAQI
5th Aug 2026587 AMAQI
5th Aug 2026518 AMAQI
5th Aug 2026549 AMAQI
5th Aug 20265810 AMAQI
5th Aug 20265211 AMAQI
11 AM5th Aug 20265612 PMAQI
5th Aug 2026571 PMAQI
5th Aug 2026532 PMAQI
5th Aug 2026523 PMAQI
5th Aug 2026574 PMAQI
5th Aug 2026505 PMAQI
5th Aug 2026546 PMAQI
6 PM5th Aug 2026587 PMAQI
5th Aug 2026568 PMAQI
5th Aug 2026649 PMAQI
5th Aug 20266910 PMAQI
5th Aug 20267411 PMAQI
11 PM4 AM
27°C26/30°C
Day time
Avg. Highest Time
11 AM - 1 PM
72AQI
3 hours / Day
90 hours / Month
Avg. Lowest Time
4 PM
61AQI
1 hours / Day
30 hours / Month
In the last 30 days, during the daytime, the highest AQI was between 11 AM to 1 PM (Avg. 72), while the lowest AQI was between 4 PM to 4 PM (Avg. 61).
Night time
Avg. Highest Time
12 AM - 1 AM
68AQI
2 hours / Day
60 hours / Month
Avg. Lowest Time
3 AM - 4 AM
62AQI
2 hours / Day
60 hours / Month
In the last 30 days, during the daytime, the highest AQI was between 12 AM to 1 AM (Avg. 68), while the lowest AQI was between 3 AM to 4 AM (Avg. 62).
2026 Days Vs Air Quality
Son Tay, Ha Noi, Vietnam
2026
9%
19
62%
133
21%
45
8%
16
Total number of days with different AQI categories in last 217 days in 2026 (148 days remaining)
Good
19 DaysModerate
133 DaysPoor
45 DaysUnhealthy
16 DaysSevere
0 DaysHazardous
0 DaysUnder WHO’s Safe Air Quality Limits: 9%
Health Risk Level:
Extreme
In 2026, 9% of 217 days were within WHO’s safe air quality limits. The risk of health issues is Extreme, potentially causing respiratory problems, heart disease, skin issues, and stress, especially for children, the elderly, and those with pre-existing conditions.
Annual Air Quality Insights
Son Tay, Ha Noi, Vietnam
AQI levels in 2026
AQI (US)
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 2026
-1th undefined 2026
-1th undefined 2026
-1th undefined 2026
1st January 2026
136AQI (US)
136AQI (US)
2nd January 2026
78AQI (US)
78AQI (US)
3rd January 2026
123AQI (US)
123AQI (US)
4th January 2026
160AQI (US)
160AQI (US)
5th January 2026
115AQI (US)
115AQI (US)
6th January 2026
79AQI (US)
79AQI (US)
7th January 2026
129AQI (US)
129AQI (US)
8th January 2026
148AQI (US)
148AQI (US)
9th January 2026
185AQI (US)
185AQI (US)
10th January 2026
171AQI (US)
171AQI (US)
11th January 2026
172AQI (US)
172AQI (US)
12th January 2026
164AQI (US)
164AQI (US)
13th January 2026
185AQI (US)
185AQI (US)
14th January 2026
170AQI (US)
170AQI (US)
15th January 2026
168AQI (US)
168AQI (US)
16th January 2026
154AQI (US)
154AQI (US)
17th January 2026
134AQI (US)
134AQI (US)
18th January 2026
137AQI (US)
137AQI (US)
19th January 2026
144AQI (US)
144AQI (US)
20th January 2026
119AQI (US)
119AQI (US)
21st January 2026
106AQI (US)
106AQI (US)
22nd January 2026
67AQI (US)
67AQI (US)
23rd January 2026
79AQI (US)
79AQI (US)
24th January 2026
106AQI (US)
106AQI (US)
25th January 2026
129AQI (US)
129AQI (US)
26th January 2026
152AQI (US)
152AQI (US)
27th January 2026
162AQI (US)
162AQI (US)
28th January 2026
149AQI (US)
149AQI (US)
29th January 2026
143AQI (US)
143AQI (US)
30th January 2026
106AQI (US)
106AQI (US)
31st January 2026
99AQI (US)
99AQI (US)
1st February 2026
93AQI (US)
93AQI (US)
2nd February 2026
126AQI (US)
126AQI (US)
3rd February 2026
152AQI (US)
152AQI (US)
4th February 2026
157AQI (US)
157AQI (US)
5th February 2026
158AQI (US)
158AQI (US)
6th February 2026
156AQI (US)
156AQI (US)
7th February 2026
87AQI (US)
87AQI (US)
8th February 2026
85AQI (US)
85AQI (US)
9th February 2026
54AQI (US)
54AQI (US)
10th February 2026
95AQI (US)
95AQI (US)
11th February 2026
93AQI (US)
93AQI (US)
12th February 2026
101AQI (US)
101AQI (US)
13th February 2026
95AQI (US)
95AQI (US)
14th February 2026
84AQI (US)
84AQI (US)
15th February 2026
89AQI (US)
89AQI (US)
16th February 2026
78AQI (US)
78AQI (US)
17th February 2026
126AQI (US)
126AQI (US)
18th February 2026
112AQI (US)
112AQI (US)
19th February 2026
108AQI (US)
108AQI (US)
20th February 2026
76AQI (US)
76AQI (US)
21st February 2026
106AQI (US)
106AQI (US)
22nd February 2026
69AQI (US)
69AQI (US)
23rd February 2026
75AQI (US)
75AQI (US)
24th February 2026
73AQI (US)
73AQI (US)
25th February 2026
90AQI (US)
90AQI (US)
26th February 2026
108AQI (US)
108AQI (US)
27th February 2026
104AQI (US)
104AQI (US)
28th February 2026
83AQI (US)
83AQI (US)
1st March 2026
86AQI (US)
86AQI (US)
2nd March 2026
72AQI (US)
72AQI (US)
3rd March 2026
59AQI (US)
59AQI (US)
4th March 2026
68AQI (US)
68AQI (US)
5th March 2026
103AQI (US)
103AQI (US)
6th March 2026
130AQI (US)
130AQI (US)
7th March 2026
107AQI (US)
107AQI (US)
8th March 2026
78AQI (US)
78AQI (US)
9th March 2026
69AQI (US)
69AQI (US)
10th March 2026
33AQI (US)
33AQI (US)
11th March 2026
78AQI (US)
78AQI (US)
12th March 2026
120AQI (US)
120AQI (US)
13th March 2026
122AQI (US)
122AQI (US)
14th March 2026
88AQI (US)
88AQI (US)
15th March 2026
83AQI (US)
83AQI (US)
16th March 2026
71AQI (US)
71AQI (US)
17th March 2026
67AQI (US)
67AQI (US)
18th March 2026
74AQI (US)
74AQI (US)
19th March 2026
75AQI (US)
75AQI (US)
20th March 2026
68AQI (US)
68AQI (US)
21st March 2026
81AQI (US)
81AQI (US)
22nd March 2026
83AQI (US)
83AQI (US)
23rd March 2026
72AQI (US)
72AQI (US)
24th March 2026
73AQI (US)
73AQI (US)
25th March 2026
68AQI (US)
68AQI (US)
26th March 2026
92AQI (US)
92AQI (US)
27th March 2026
81AQI (US)
81AQI (US)
28th March 2026
86AQI (US)
86AQI (US)
29th March 2026
84AQI (US)
84AQI (US)
30th March 2026
112AQI (US)
112AQI (US)
31st March 2026
107AQI (US)
107AQI (US)
1st April 2026
80AQI (US)
80AQI (US)
2nd April 2026
107AQI (US)
107AQI (US)
3rd April 2026
136AQI (US)
136AQI (US)
4th April 2026
112AQI (US)
112AQI (US)
5th April 2026
119AQI (US)
119AQI (US)
6th April 2026
151AQI (US)
151AQI (US)
7th April 2026
146AQI (US)
146AQI (US)
8th April 2026
112AQI (US)
112AQI (US)
9th April 2026
112AQI (US)
112AQI (US)
10th April 2026
117AQI (US)
117AQI (US)
11th April 2026
140AQI (US)
140AQI (US)
12th April 2026
139AQI (US)
139AQI (US)
13th April 2026
121AQI (US)
121AQI (US)
14th April 2026
110AQI (US)
110AQI (US)
15th April 2026
91AQI (US)
91AQI (US)
16th April 2026
80AQI (US)
80AQI (US)
17th April 2026
18th April 2026
104AQI (US)
104AQI (US)
19th April 2026
90AQI (US)
90AQI (US)
20th April 2026
95AQI (US)
95AQI (US)
21st April 2026
79AQI (US)
79AQI (US)
22nd April 2026
23rd April 2026
58AQI (US)
58AQI (US)
24th April 2026
71AQI (US)
71AQI (US)
25th April 2026
89AQI (US)
89AQI (US)
26th April 2026
80AQI (US)
80AQI (US)
27th April 2026
62AQI (US)
62AQI (US)
28th April 2026
57AQI (US)
57AQI (US)
29th April 2026
38AQI (US)
38AQI (US)
30th April 2026
39AQI (US)
39AQI (US)
1st May 2026
71AQI (US)
71AQI (US)
2nd May 2026
77AQI (US)
77AQI (US)
3rd May 2026
61AQI (US)
61AQI (US)
4th May 2026
46AQI (US)
46AQI (US)
5th May 2026
77AQI (US)
77AQI (US)
6th May 2026
77AQI (US)
77AQI (US)
7th May 2026
62AQI (US)
62AQI (US)
8th May 2026
63AQI (US)
63AQI (US)
9th May 2026
10th May 2026
99AQI (US)
99AQI (US)
11th May 2026
90AQI (US)
90AQI (US)
12th May 2026
67AQI (US)
67AQI (US)
13th May 2026
57AQI (US)
57AQI (US)
14th May 2026
66AQI (US)
66AQI (US)
15th May 2026
75AQI (US)
75AQI (US)
16th May 2026
77AQI (US)
77AQI (US)
17th May 2026
75AQI (US)
75AQI (US)
18th May 2026
70AQI (US)
70AQI (US)
19th May 2026
55AQI (US)
55AQI (US)
20th May 2026
62AQI (US)
62AQI (US)
21st May 2026
73AQI (US)
73AQI (US)
22nd May 2026
69AQI (US)
69AQI (US)
23rd May 2026
55AQI (US)
55AQI (US)
24th May 2026
64AQI (US)
64AQI (US)
25th May 2026
59AQI (US)
59AQI (US)
26th May 2026
51AQI (US)
51AQI (US)
27th May 2026
85AQI (US)
85AQI (US)
28th May 2026
51AQI (US)
51AQI (US)
29th May 2026
82AQI (US)
82AQI (US)
30th May 2026
77AQI (US)
77AQI (US)
31st May 2026
87AQI (US)
87AQI (US)
1st June 2026
103AQI (US)
103AQI (US)
2nd June 2026
77AQI (US)
77AQI (US)
3rd June 2026
77AQI (US)
77AQI (US)
4th June 2026
97AQI (US)
97AQI (US)
5th June 2026
65AQI (US)
65AQI (US)
6th June 2026
73AQI (US)
73AQI (US)
7th June 2026
40AQI (US)
40AQI (US)
8th June 2026
55AQI (US)
55AQI (US)
9th June 2026
42AQI (US)
42AQI (US)
10th June 2026
61AQI (US)
61AQI (US)
11th June 2026
97AQI (US)
97AQI (US)
12th June 2026
98AQI (US)
98AQI (US)
13th June 2026
62AQI (US)
62AQI (US)
14th June 2026
63AQI (US)
63AQI (US)
15th June 2026
74AQI (US)
74AQI (US)
16th June 2026
97AQI (US)
97AQI (US)
17th June 2026
76AQI (US)
76AQI (US)
18th June 2026
68AQI (US)
68AQI (US)
19th June 2026
52AQI (US)
52AQI (US)
20th June 2026
44AQI (US)
44AQI (US)
21st June 2026
55AQI (US)
55AQI (US)
22nd June 2026
51AQI (US)
51AQI (US)
23rd June 2026
51AQI (US)
51AQI (US)
24th June 2026
47AQI (US)
47AQI (US)
25th June 2026
55AQI (US)
55AQI (US)
26th June 2026
36AQI (US)
36AQI (US)
27th June 2026
82AQI (US)
82AQI (US)
28th June 2026
74AQI (US)
74AQI (US)
29th June 2026
69AQI (US)
69AQI (US)
30th June 2026
45AQI (US)
45AQI (US)
1st July 2026
58AQI (US)
58AQI (US)
2nd July 2026
73AQI (US)
73AQI (US)
3rd July 2026
75AQI (US)
75AQI (US)
4th July 2026
40AQI (US)
40AQI (US)
5th July 2026
54AQI (US)
54AQI (US)
6th July 2026
45AQI (US)
45AQI (US)
7th July 2026
80AQI (US)
80AQI (US)
8th July 2026
65AQI (US)
65AQI (US)
9th July 2026
71AQI (US)
71AQI (US)
10th July 2026
47AQI (US)
47AQI (US)
11th July 2026
89AQI (US)
89AQI (US)
12th July 2026
91AQI (US)
91AQI (US)
13th July 2026
93AQI (US)
93AQI (US)
14th July 2026
59AQI (US)
59AQI (US)
15th July 2026
64AQI (US)
64AQI (US)
16th July 2026
68AQI (US)
68AQI (US)
17th July 2026
42AQI (US)
42AQI (US)
18th July 2026
48AQI (US)
48AQI (US)
19th July 2026
48AQI (US)
48AQI (US)
20th July 2026
76AQI (US)
76AQI (US)
21st July 2026
105AQI (US)
105AQI (US)
22nd July 2026
90AQI (US)
90AQI (US)
23rd July 2026
64AQI (US)
64AQI (US)
24th July 2026
54AQI (US)
54AQI (US)
25th July 2026
71AQI (US)
71AQI (US)
26th July 2026
89AQI (US)
89AQI (US)
27th July 2026
59AQI (US)
59AQI (US)
28th July 2026
45AQI (US)
45AQI (US)
29th July 2026
54AQI (US)
54AQI (US)
30th July 2026
68AQI (US)
68AQI (US)
31st July 2026
49AQI (US)
49AQI (US)
1st August 2026
48AQI (US)
48AQI (US)
2nd August 2026
57AQI (US)
57AQI (US)
3rd August 2026
64AQI (US)
64AQI (US)
4th August 2026
67AQI (US)
67AQI (US)
5th August 2026
6th August 2026
7th August 2026
8th August 2026
9th August 2026
10th August 2026
11th August 2026
12th August 2026
13th August 2026
14th August 2026
15th August 2026
16th August 2026
17th August 2026
18th August 2026
19th August 2026
20th August 2026
21st August 2026
22nd August 2026
23rd August 2026
24th August 2026
25th August 2026
26th August 2026
27th August 2026
28th August 2026
29th August 2026
30th August 2026
31st August 2026
1st September 2026
2nd September 2026
3rd September 2026
4th September 2026
5th September 2026
6th September 2026
7th September 2026
8th September 2026
9th September 2026
10th September 2026
11th September 2026
12th September 2026
13th September 2026
14th September 2026
15th September 2026
16th September 2026
17th September 2026
18th September 2026
19th September 2026
20th September 2026
21st September 2026
22nd September 2026
23rd September 2026
24th September 2026
25th September 2026
26th September 2026
27th September 2026
28th September 2026
29th September 2026
30th September 2026
1st October 2026
2nd October 2026
3rd October 2026
4th October 2026
5th October 2026
6th October 2026
7th October 2026
8th October 2026
9th October 2026
10th October 2026
11th October 2026
12th October 2026
13th October 2026
14th October 2026
15th October 2026
16th October 2026
17th October 2026
18th October 2026
19th October 2026
20th October 2026
21st October 2026
22nd October 2026
23rd October 2026
24th October 2026
25th October 2026
26th October 2026
27th October 2026
28th October 2026
29th October 2026
30th October 2026
31st October 2026
1st November 2026
2nd November 2026
3rd November 2026
4th November 2026
5th November 2026
6th November 2026
7th November 2026
8th November 2026
9th November 2026
10th November 2026
11th November 2026
12th November 2026
13th November 2026
14th November 2026
15th November 2026
16th November 2026
17th November 2026
18th November 2026
19th November 2026
20th November 2026
21st November 2026
22nd November 2026
23rd November 2026
24th November 2026
25th November 2026
26th November 2026
27th November 2026
28th November 2026
29th November 2026
30th November 2026
1st December 2026
2nd December 2026
3rd December 2026
4th December 2026
5th December 2026
6th December 2026
7th December 2026
8th December 2026
9th December 2026
10th December 2026
11th December 2026
12th December 2026
13th December 2026
14th December 2026
15th December 2026
16th December 2026
17th December 2026
18th December 2026
19th December 2026
20th December 2026
21st December 2026
22nd December 2026
23rd December 2026
24th December 2026
25th December 2026
26th December 2026
27th December 2026
28th December 2026
29th December 2026
30th December 2026
31st December 2026
134AQI (US)
101AQI (US)
84AQI (US)
98AQI (US)
69AQI (US)
66AQI (US)
66AQI (US)
59AQI (US)
No. of days
Jan.Feb.Mar.Apr.MayJun.Jul.Aug.Sep.Oct.Nov.Dec.Total Days
202688AQI (US)
5
15
11
16
8
4
1
23
7
2
12
13
1
1
29
6
23
1
8
22
1
1
3
19
133
45
16
Highest AQI (US) recorded in
January134AQI (US)
Lowest AQI (US) recorded in
August59AQI (US)
202589AQI (US)
5
16
10
13
12
3
17
14
22
8
31
30
5
26
19
12
18
12
16
15
3
11
11
5
5
10
15
1
45
200
86
33
1
Highest AQI (US) recorded in
December148AQI (US)
Lowest AQI (US) recorded in
August47AQI (US)
202471AQI (US)
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 (US) recorded in
December115AQI (US)
Lowest AQI (US) recorded in
April2AQI (US)
202334AQI (US)
2
1
25
6
27
7
Highest AQI (US) recorded in
November43AQI (US)
Lowest AQI (US) recorded in
December33AQI (US)
20219AQI (US)
2
2
12
16
Highest AQI (US) recorded in
April9AQI (US)
Lowest AQI (US) recorded in
May7AQI (US)
Most & Least Polluted Years Over the Last 5 Years
Most Polluted Year Recorded
2025(Avg.)
89AQI (US)Least Polluted Year Recorded
2021(Avg.)
9AQI (US)Son Tay's annual 2026 AQI (US) (88) shows an average percentage change of 264.8% (worsened AQI (US)) compared to previous years: 2021 (9), 2023 (34), 2024 (71), 2025 (89).
