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
AQI
.
Days
AQI Trends: Highest and Lowest
Highest AQI recorded on
1st Aug 2025
53AQILowest AQI recorded on
14th Aug 2024
28AQISame Day Analysis (1st August ):
On this day, AQI across the 2 years varied significantly: 2025 ranks 1st highest AQI at 53 of Moderate air quality on the same day.
Download 2024 Annual Data
World Air Quality Report
Day & Night AQI Trend: 2nd Aug - 3rd Aug 2025
Son Tay, Ha Noi, Vietnam
AQI
Day
Night
.
5 AM2nd Aug 2025
6 PM
4 AM3rd Aug 2025
Day time
Avg. Highest Time
12AMNaNth undefined
AQI
Avg. Lowest Time
12AMNaNth undefined
AQI
Night time
Avg. Highest Time
6PM2nd Aug
60AQI
Avg. Lowest Time
9AM2nd Aug
46AQI
In the last 24 hours,
Son Tay's AQI reached its highest point of 60 at 6 PM during the Night, while the lowest point, undefined, was recorded at 4 AM during the Night between 2nd Aug and 3rd Aug 2025.
Day & Night AQI Trend : Jul - Aug 2025
Son Tay, Ha Noi, Vietnam
JulAug
04th - 05th05th - 06th06th - 07th07th - 08th08th - 09th09th - 10th10th - 11th11th - 12th12th - 13th13th - 14th14th - 15th15th - 16th16th - 17th17th - 18th18th - 19th19th - 20th20th - 21st21st - 22nd22nd - 23rd23rd - 24th24th - 25th25th - 26th26th - 27th27th - 28th28th - 29th29th - 30th30th - 31st31st - 01st01st - 02nd02nd - 03rd03rd
Day
Night
4th Jul 2025555 AMAQI
4th Jul 2025546 AMAQI
4th Jul 2025717 AMAQI
4th Jul 2025768 AMAQI
4th Jul 2025739 AMAQI
4th Jul 20257310 AMAQI
4th Jul 20256611 AMAQI
4th Jul 20255812 PMAQI
4th Jul 2025571 PMAQI
4th Jul 2025552 PMAQI
4th Jul 2025583 PMAQI
4th Jul 2025604 PMAQI
4th Jul 2025555 PMAQI
4th Jul 2025566 PMAQI
4th Jul 2025567 PMAQI
4th Jul 2025548 PMAQI
4th Jul 2025549 PMAQI
4th Jul 20255410 PMAQI
4th Jul 20255611 PMAQI
5th Jul 20255712 AMAQI
5th Jul 2025591 AMAQI
5th Jul 2025582 AMAQI
5th Jul 2025593 AMAQI
5th Jul 2025584 AMAQI
28°C24/33°C
5th Jul 2025595 AMAQI
5th Jul 2025596 AMAQI
5th Jul 2025577 AMAQI
5th Jul 2025608 AMAQI
5th Jul 2025629 AMAQI
5th Jul 20255810 AMAQI
5th Jul 20255511 AMAQI
5th Jul 20255612 PMAQI
5th Jul 2025571 PMAQI
5th Jul 2025592 PMAQI
5th Jul 2025603 PMAQI
5th Jul 2025624 PMAQI
5th Jul 2025625 PMAQI
5th Jul 2025696 PMAQI
5th Jul 2025627 PMAQI
5th Jul 2025638 PMAQI
5th Jul 2025639 PMAQI
5th Jul 20256310 PMAQI
5th Jul 20256011 PMAQI
6th Jul 20255712 AMAQI
6th Jul 2025581 AMAQI
6th Jul 2025582 AMAQI
6th Jul 2025583 AMAQI
6th Jul 2025584 AMAQI
29°C25/34°C
6th Jul 2025585 AMAQI
6th Jul 2025586 AMAQI
6th Jul 2025597 AMAQI
6th Jul 2025598 AMAQI
6th Jul 2025619 AMAQI
6th Jul 20256110 AMAQI
6th Jul 20256011 AMAQI
6th Jul 20255112 PMAQI
6th Jul 2025561 PMAQI
6th Jul 2025542 PMAQI
6th Jul 2025563 PMAQI
6th Jul 2025584 PMAQI
6th Jul 2025585 PMAQI
6th Jul 2025606 PMAQI
6th Jul 2025587 PMAQI
6th Jul 2025588 PMAQI
6th Jul 2025589 PMAQI
6th Jul 20255710 PMAQI
6th Jul 20255811 PMAQI
7th Jul 20255712 AMAQI
7th Jul 2025591 AMAQI
7th Jul 2025582 AMAQI
7th Jul 2025583 AMAQI
7th Jul 2025584 AMAQI
29°C25/32°C
7th Jul 2025585 AMAQI
7th Jul 2025586 AMAQI
7th Jul 2025597 AMAQI
7th Jul 2025608 AMAQI
7th Jul 2025659 AMAQI
7th Jul 20256610 AMAQI
7th Jul 20257311 AMAQI
7th Jul 20256712 PMAQI
7th Jul 2025601 PMAQI
7th Jul 2025572 PMAQI
7th Jul 2025603 PMAQI
7th Jul 2025604 PMAQI
7th Jul 2025605 PMAQI
7th Jul 2025586 PMAQI
7th Jul 2025637 PMAQI
7th Jul 2025628 PMAQI
7th Jul 2025629 PMAQI
7th Jul 20256110 PMAQI
7th Jul 20256211 PMAQI
8th Jul 20255812 AMAQI
8th Jul 2025601 AMAQI
8th Jul 2025582 AMAQI
8th Jul 2025593 AMAQI
8th Jul 2025594 AMAQI
29°C25/34°C
8th Jul 2025595 AMAQI
8th Jul 2025586 AMAQI
8th Jul 2025567 AMAQI
8th Jul 2025568 AMAQI
8th Jul 2025569 AMAQI
8th Jul 20255510 AMAQI
8th Jul 20255411 AMAQI
8th Jul 20255512 PMAQI
8th Jul 2025551 PMAQI
8th Jul 2025572 PMAQI
8th Jul 2025553 PMAQI
8th Jul 2025544 PMAQI
8th Jul 2025605 PMAQI
8th Jul 2025556 PMAQI
8th Jul 2025567 PMAQI
8th Jul 2025568 PMAQI
8th Jul 2025619 PMAQI
8th Jul 20256210 PMAQI
8th Jul 20256311 PMAQI
9th Jul 20256412 AMAQI
9th Jul 2025581 AMAQI
9th Jul 2025592 AMAQI
9th Jul 2025583 AMAQI
9th Jul 2025584 AMAQI
31°C26/36°C
9th Jul 2025585 AMAQI
9th Jul 2025596 AMAQI
9th Jul 2025597 AMAQI
9th Jul 2025608 AMAQI
9th Jul 2025559 AMAQI
9th Jul 20255210 AMAQI
9th Jul 20256011 AMAQI
9th Jul 20255712 PMAQI
9th Jul 2025561 PMAQI
9th Jul 2025532 PMAQI
9th Jul 2025543 PMAQI
9th Jul 2025524 PMAQI
9th Jul 2025545 PMAQI
9th Jul 2025586 PMAQI
9th Jul 2025687 PMAQI
9th Jul 2025758 PMAQI
9th Jul 2025769 PMAQI
9th Jul 20257310 PMAQI
9th Jul 20256711 PMAQI
10th Jul 20256612 AMAQI
10th Jul 2025621 AMAQI
10th Jul 2025602 AMAQI
10th Jul 2025603 AMAQI
10th Jul 2025604 AMAQI
32°C27/36°C
10th Jul 2025605 AMAQI
10th Jul 2025596 AMAQI
10th Jul 2025467 AMAQI
10th Jul 2025408 AMAQI
10th Jul 2025339 AMAQI
10th Jul 20253810 AMAQI
10th Jul 20254711 AMAQI
10th Jul 20254812 PMAQI
10th Jul 2025511 PMAQI
10th Jul 2025502 PMAQI
10th Jul 2025473 PMAQI
10th Jul 2025454 PMAQI
10th Jul 2025535 PMAQI
10th Jul 2025536 PMAQI
10th Jul 2025557 PMAQI
10th Jul 2025578 PMAQI
10th Jul 2025599 PMAQI
10th Jul 20255910 PMAQI
10th Jul 20255911 PMAQI
11th Jul 20255812 AMAQI
11th Jul 2025591 AMAQI
11th Jul 2025602 AMAQI
11th Jul 2025583 AMAQI
11th Jul 2025584 AMAQI
29°C25/34°C
11th Jul 2025585 AMAQI
11th Jul 2025586 AMAQI
11th Jul 2025527 AMAQI
11th Jul 2025518 AMAQI
11th Jul 2025499 AMAQI
11th Jul 20254810 AMAQI
11th Jul 20255011 AMAQI
11th Jul 20254912 PMAQI
11th Jul 2025511 PMAQI
11th Jul 2025522 PMAQI
11th Jul 2025523 PMAQI
11th Jul 2025494 PMAQI
11th Jul 2025485 PMAQI
11th Jul 2025476 PMAQI
11th Jul 2025567 PMAQI
11th Jul 2025568 PMAQI
11th Jul 2025569 PMAQI
11th Jul 20255510 PMAQI
11th Jul 20255411 PMAQI
12th Jul 20255512 AMAQI
12th Jul 2025581 AMAQI
12th Jul 2025582 AMAQI
12th Jul 2025573 AMAQI
12th Jul 2025574 AMAQI
28°C25/32°C
12th Jul 2025575 AMAQI
12th Jul 2025576 AMAQI
12th Jul 2025587 AMAQI
12th Jul 2025538 AMAQI
12th Jul 2025549 AMAQI
12th Jul 20255510 AMAQI
12th Jul 20255011 AMAQI
12th Jul 20254712 PMAQI
12th Jul 2025521 PMAQI
12th Jul 2025522 PMAQI
12th Jul 2025513 PMAQI
12th Jul 2025454 PMAQI
12th Jul 2025475 PMAQI
12th Jul 2025466 PMAQI
12th Jul 2025507 PMAQI
12th Jul 2025528 PMAQI
12th Jul 2025549 PMAQI
12th Jul 20255410 PMAQI
12th Jul 20255611 PMAQI
13th Jul 20255512 AMAQI
13th Jul 2025561 AMAQI
13th Jul 2025562 AMAQI
13th Jul 2025563 AMAQI
13th Jul 2025564 AMAQI
28°C24/33°C
13th Jul 2025565 AMAQI
13th Jul 2025566 AMAQI
13th Jul 2025537 AMAQI
13th Jul 2025538 AMAQI
13th Jul 2025449 AMAQI
13th Jul 20254610 AMAQI
13th Jul 20254911 AMAQI
13th Jul 20255012 PMAQI
13th Jul 2025451 PMAQI
13th Jul 2025512 PMAQI
13th Jul 2025513 PMAQI
13th Jul 2025484 PMAQI
13th Jul 2025525 PMAQI
13th Jul 2025526 PMAQI
13th Jul 2025567 PMAQI
13th Jul 2025608 PMAQI
13th Jul 2025629 PMAQI
13th Jul 20256210 PMAQI
13th Jul 20256211 PMAQI
14th Jul 20255712 AMAQI
14th Jul 2025581 AMAQI
14th Jul 2025552 AMAQI
14th Jul 2025553 AMAQI
14th Jul 2025554 AMAQI
29°C25/32°C
14th Jul 2025545 AMAQI
14th Jul 2025556 AMAQI
14th Jul 2025607 AMAQI
14th Jul 2025728 AMAQI
14th Jul 2025689 AMAQI
14th Jul 20257210 AMAQI
14th Jul 20257111 AMAQI
14th Jul 20257112 PMAQI
14th Jul 2025641 PMAQI
14th Jul 2025662 PMAQI
14th Jul 2025663 PMAQI
14th Jul 2025624 PMAQI
14th Jul 2025635 PMAQI
14th Jul 2025666 PMAQI
14th Jul 2025587 PMAQI
14th Jul 2025588 PMAQI
14th Jul 2025589 PMAQI
14th Jul 20256210 PMAQI
14th Jul 20256011 PMAQI
15th Jul 20256012 AMAQI
15th Jul 2025581 AMAQI
15th Jul 2025582 AMAQI
15th Jul 2025603 AMAQI
15th Jul 2025604 AMAQI
29°C26/33°C
15th Jul 2025605 AMAQI
15th Jul 2025606 AMAQI
15th Jul 2025677 AMAQI
15th Jul 2025668 AMAQI
15th Jul 2025709 AMAQI
15th Jul 20256510 AMAQI
15th Jul 20256511 AMAQI
15th Jul 20257712 PMAQI
15th Jul 2025941 PMAQI
15th Jul 2025902 PMAQI
15th Jul 2025813 PMAQI
15th Jul 2025784 PMAQI
15th Jul 2025725 PMAQI
15th Jul 2025776 PMAQI
15th Jul 2025717 PMAQI
15th Jul 2025678 PMAQI
15th Jul 2025639 PMAQI
15th Jul 20256110 PMAQI
15th Jul 20255911 PMAQI
16th Jul 20255812 AMAQI
16th Jul 2025591 AMAQI
16th Jul 2025602 AMAQI
16th Jul 2025623 AMAQI
16th Jul 2025624 AMAQI
29°C26/33°C
16th Jul 2025625 AMAQI
16th Jul 2025636 AMAQI
16th Jul 2025597 AMAQI
16th Jul 2025578 AMAQI
16th Jul 2025599 AMAQI
16th Jul 20256110 AMAQI
16th Jul 20255811 AMAQI
16th Jul 20255412 PMAQI
16th Jul 2025571 PMAQI
16th Jul 2025552 PMAQI
16th Jul 2025563 PMAQI
16th Jul 2025554 PMAQI
16th Jul 2025545 PMAQI
16th Jul 2025596 PMAQI
16th Jul 2025587 PMAQI
16th Jul 2025588 PMAQI
16th Jul 2025589 PMAQI
16th Jul 20255610 PMAQI
16th Jul 20255611 PMAQI
17th Jul 20255712 AMAQI
17th Jul 2025611 AMAQI
17th Jul 2025612 AMAQI
17th Jul 2025593 AMAQI
17th Jul 2025604 AMAQI
29°C26/32°C
17th Jul 2025585 AMAQI
17th Jul 2025606 AMAQI
17th Jul 2025597 AMAQI
17th Jul 2025598 AMAQI
17th Jul 2025559 AMAQI
17th Jul 20255710 AMAQI
17th Jul 20255311 AMAQI
17th Jul 20255312 PMAQI
17th Jul 2025521 PMAQI
17th Jul 2025522 PMAQI
17th Jul 2025523 PMAQI
17th Jul 2025514 PMAQI
17th Jul 2025525 PMAQI
17th Jul 2025526 PMAQI
17th Jul 2025577 PMAQI
17th Jul 2025618 PMAQI
17th Jul 2025619 PMAQI
17th Jul 20256110 PMAQI
17th Jul 20255911 PMAQI
18th Jul 20255912 AMAQI
18th Jul 2025581 AMAQI
18th Jul 2025582 AMAQI
18th Jul 2025563 AMAQI
18th Jul 2025564 AMAQI
30°C26/36°C
18th Jul 2025565 AMAQI
18th Jul 2025566 AMAQI
18th Jul 2025577 AMAQI
18th Jul 2025648 AMAQI
18th Jul 2025609 AMAQI
18th Jul 20255810 AMAQI
18th Jul 20256011 AMAQI
18th Jul 20255812 PMAQI
18th Jul 2025581 PMAQI
18th Jul 2025602 PMAQI
18th Jul 2025583 PMAQI
18th Jul 2025594 PMAQI
18th Jul 2025575 PMAQI
18th Jul 2025576 PMAQI
18th Jul 2025557 PMAQI
18th Jul 2025598 PMAQI
18th Jul 2025569 PMAQI
18th Jul 20255710 PMAQI
18th Jul 20256011 PMAQI
19th Jul 20256212 AMAQI
19th Jul 2025581 AMAQI
19th Jul 2025592 AMAQI
19th Jul 2025603 AMAQI
19th Jul 2025604 AMAQI
31°C27/35°C
19th Jul 2025605 AMAQI
19th Jul 2025606 AMAQI
19th Jul 2025707 AMAQI
19th Jul 2025748 AMAQI
19th Jul 2025799 AMAQI
19th Jul 20258110 AMAQI
19th Jul 20257511 AMAQI
19th Jul 20257212 PMAQI
19th Jul 2025761 PMAQI
19th Jul 2025682 PMAQI
19th Jul 2025653 PMAQI
19th Jul 2025664 PMAQI
19th Jul 2025615 PMAQI
19th Jul 2025586 PMAQI
19th Jul 2025607 PMAQI
19th Jul 2025588 PMAQI
19th Jul 2025579 PMAQI
19th Jul 20255710 PMAQI
19th Jul 20255711 PMAQI
20th Jul 20255912 AMAQI
20th Jul 2025611 AMAQI
20th Jul 2025622 AMAQI
20th Jul 2025633 AMAQI
20th Jul 2025644 AMAQI
30°C24/36°C
20th Jul 2025645 AMAQI
20th Jul 2025636 AMAQI
20th Jul 2025597 AMAQI
20th Jul 2025538 AMAQI
20th Jul 2025529 AMAQI
20th Jul 20255310 AMAQI
20th Jul 20255411 AMAQI
20th Jul 20255412 PMAQI
20th Jul 2025551 PMAQI
20th Jul 2025572 PMAQI
20th Jul 2025563 PMAQI
20th Jul 2025574 PMAQI
20th Jul 2025605 PMAQI
20th Jul 2025576 PMAQI
20th Jul 2025567 PMAQI
20th Jul 2025588 PMAQI
20th Jul 2025589 PMAQI
20th Jul 20255910 PMAQI
20th Jul 20255711 PMAQI
21st Jul 20256312 AMAQI
21st Jul 2025641 AMAQI
21st Jul 2025612 AMAQI
21st Jul 2025603 AMAQI
21st Jul 2025604 AMAQI
27°C24/32°C
21st Jul 2025605 AMAQI
21st Jul 2025606 AMAQI
21st Jul 2025597 AMAQI
21st Jul 2025548 AMAQI
21st Jul 2025579 AMAQI
21st Jul 20255810 AMAQI
21st Jul 20255511 AMAQI
21st Jul 20255412 PMAQI
21st Jul 2025541 PMAQI
21st Jul 2025532 PMAQI
21st Jul 2025543 PMAQI
21st Jul 2025544 PMAQI
21st Jul 2025535 PMAQI
21st Jul 2025546 PMAQI
21st Jul 2025557 PMAQI
21st Jul 2025558 PMAQI
21st Jul 2025549 PMAQI
21st Jul 20255410 PMAQI
21st Jul 20255411 PMAQI
22nd Jul 20255712 AMAQI
22nd Jul 2025581 AMAQI
22nd Jul 2025592 AMAQI
22nd Jul 2025583 AMAQI
22nd Jul 2025584 AMAQI
26°C25/28°C
22nd Jul 2025585 AMAQI
22nd Jul 2025586 AMAQI
22nd Jul 2025457 AMAQI
22nd Jul 2025408 AMAQI
22nd Jul 2025409 AMAQI
22nd Jul 20253710 AMAQI
22nd Jul 20253411 AMAQI
22nd Jul 20253812 PMAQI
22nd Jul 2025381 PMAQI
22nd Jul 2025372 PMAQI
22nd Jul 2025433 PMAQI
22nd Jul 2025394 PMAQI
22nd Jul 2025405 PMAQI
22nd Jul 2025436 PMAQI
22nd Jul 2025487 PMAQI
22nd Jul 2025508 PMAQI
22nd Jul 2025509 PMAQI
22nd Jul 20255010 PMAQI
22nd Jul 20255011 PMAQI
23rd Jul 20255012 AMAQI
23rd Jul 2025561 AMAQI
23rd Jul 2025562 AMAQI
23rd Jul 2025543 AMAQI
23rd Jul 2025544 AMAQI
26°C25/30°C
23rd Jul 2025555 AMAQI
23rd Jul 2025556 AMAQI
23rd Jul 2025517 AMAQI
23rd Jul 2025488 AMAQI
23rd Jul 2025509 AMAQI
23rd Jul 20254810 AMAQI
23rd Jul 20254411 AMAQI
23rd Jul 20254212 PMAQI
23rd Jul 2025411 PMAQI
23rd Jul 2025372 PMAQI
23rd Jul 2025373 PMAQI
23rd Jul 2025404 PMAQI
23rd Jul 2025435 PMAQI
23rd Jul 2025526 PMAQI
23rd Jul 2025527 PMAQI
23rd Jul 2025528 PMAQI
23rd Jul 2025529 PMAQI
23rd Jul 20255110 PMAQI
23rd Jul 20255011 PMAQI
24th Jul 20255112 AMAQI
24th Jul 2025531 AMAQI
24th Jul 2025532 AMAQI
24th Jul 2025533 AMAQI
24th Jul 2025534 AMAQI
27°C25/31°C
24th Jul 2025535 AMAQI
24th Jul 2025536 AMAQI
24th Jul 2025467 AMAQI
24th Jul 2025528 AMAQI
24th Jul 2025539 AMAQI
24th Jul 20255010 AMAQI
24th Jul 20254111 AMAQI
24th Jul 20253612 PMAQI
24th Jul 2025361 PMAQI
24th Jul 2025392 PMAQI
24th Jul 2025403 PMAQI
24th Jul 2025394 PMAQI
24th Jul 2025445 PMAQI
24th Jul 2025466 PMAQI
24th Jul 2025517 PMAQI
24th Jul 2025538 PMAQI
24th Jul 2025529 PMAQI
24th Jul 20255310 PMAQI
24th Jul 20255211 PMAQI
25th Jul 20255312 AMAQI
25th Jul 2025531 AMAQI
25th Jul 2025522 AMAQI
25th Jul 2025523 AMAQI
25th Jul 2025524 AMAQI
27°C25/32°C
25th Jul 2025525 AMAQI
25th Jul 2025526 AMAQI
25th Jul 2025567 AMAQI
25th Jul 2025588 AMAQI
25th Jul 2025619 AMAQI
25th Jul 20255810 AMAQI
25th Jul 20256011 AMAQI
25th Jul 20255512 PMAQI
25th Jul 2025551 PMAQI
25th Jul 2025532 PMAQI
25th Jul 2025603 PMAQI
25th Jul 2025574 PMAQI
25th Jul 2025595 PMAQI
25th Jul 2025526 PMAQI
25th Jul 2025547 PMAQI
25th Jul 2025578 PMAQI
25th Jul 2025569 PMAQI
25th Jul 20255410 PMAQI
25th Jul 20254911 PMAQI
26th Jul 20255512 AMAQI
26th Jul 2025541 AMAQI
26th Jul 2025532 AMAQI
26th Jul 2025543 AMAQI
26th Jul 2025544 AMAQI
28°C25/34°C
26th Jul 2025545 AMAQI
26th Jul 2025546 AMAQI
26th Jul 2025567 AMAQI
26th Jul 2025568 AMAQI
26th Jul 2025559 AMAQI
26th Jul 20255910 AMAQI
26th Jul 20256711 AMAQI
26th Jul 20255912 PMAQI
26th Jul 2025581 PMAQI
26th Jul 2025602 PMAQI
26th Jul 2025603 PMAQI
26th Jul 2025634 PMAQI
26th Jul 2025555 PMAQI
26th Jul 2025536 PMAQI
26th Jul 2025527 PMAQI
26th Jul 2025548 PMAQI
26th Jul 2025519 PMAQI
26th Jul 20255110 PMAQI
26th Jul 20255311 PMAQI
27th Jul 20255412 AMAQI
27th Jul 2025551 AMAQI
27th Jul 2025542 AMAQI
27th Jul 2025543 AMAQI
27th Jul 2025554 AMAQI
29°C25/34°C
27th Jul 2025565 AMAQI
27th Jul 2025556 AMAQI
27th Jul 2025577 AMAQI
27th Jul 2025638 AMAQI
27th Jul 2025639 AMAQI
27th Jul 20256210 AMAQI
27th Jul 20255811 AMAQI
27th Jul 20255312 PMAQI
27th Jul 2025511 PMAQI
27th Jul 2025512 PMAQI
27th Jul 2025553 PMAQI
27th Jul 2025554 PMAQI
27th Jul 2025545 PMAQI
27th Jul 2025646 PMAQI
27th Jul 2025597 PMAQI
27th Jul 2025638 PMAQI
27th Jul 2025619 PMAQI
27th Jul 20256110 PMAQI
27th Jul 20256211 PMAQI
28th Jul 20256212 AMAQI
28th Jul 2025581 AMAQI
28th Jul 2025562 AMAQI
28th Jul 2025573 AMAQI
28th Jul 2025574 AMAQI
29°C25/34°C
28th Jul 2025565 AMAQI
28th Jul 2025576 AMAQI
28th Jul 2025647 AMAQI
28th Jul 2025668 AMAQI
28th Jul 2025769 AMAQI
28th Jul 20257510 AMAQI
28th Jul 20256811 AMAQI
28th Jul 20256312 PMAQI
28th Jul 2025641 PMAQI
28th Jul 2025642 PMAQI
28th Jul 2025623 PMAQI
28th Jul 2025624 PMAQI
28th Jul 2025615 PMAQI
28th Jul 2025616 PMAQI
28th Jul 2025617 PMAQI
28th Jul 2025618 PMAQI
28th Jul 2025739 PMAQI
28th Jul 20257510 PMAQI
28th Jul 20256811 PMAQI
29th Jul 20256212 AMAQI
29th Jul 2025581 AMAQI
29th Jul 2025592 AMAQI
29th Jul 2025603 AMAQI
29th Jul 2025614 AMAQI
30°C26/35°C
29th Jul 2025605 AMAQI
29th Jul 2025616 AMAQI
29th Jul 2025707 AMAQI
29th Jul 2025868 AMAQI
29th Jul 2025959 AMAQI
29th Jul 20258910 AMAQI
29th Jul 20257611 AMAQI
29th Jul 20257812 PMAQI
29th Jul 2025781 PMAQI
29th Jul 2025732 PMAQI
29th Jul 2025603 PMAQI
29th Jul 2025584 PMAQI
29th Jul 2025625 PMAQI
29th Jul 2025606 PMAQI
29th Jul 2025667 PMAQI
29th Jul 2025688 PMAQI
29th Jul 2025679 PMAQI
29th Jul 20256610 PMAQI
29th Jul 20256611 PMAQI
30th Jul 20256612 AMAQI
30th Jul 2025641 AMAQI
30th Jul 2025622 AMAQI
30th Jul 2025653 AMAQI
30th Jul 2025644 AMAQI
31°C27/36°C
30th Jul 2025645 AMAQI
30th Jul 2025656 AMAQI
30th Jul 2025707 AMAQI
30th Jul 2025808 AMAQI
30th Jul 2025829 AMAQI
30th Jul 20258010 AMAQI
30th Jul 20256611 AMAQI
30th Jul 20256112 PMAQI
30th Jul 2025661 PMAQI
30th Jul 2025702 PMAQI
30th Jul 2025683 PMAQI
30th Jul 2025684 PMAQI
30th Jul 2025665 PMAQI
30th Jul 2025666 PMAQI
30th Jul 2025647 PMAQI
30th Jul 2025608 PMAQI
30th Jul 2025609 PMAQI
30th Jul 20255810 PMAQI
30th Jul 20255811 PMAQI
31st Jul 20255812 AMAQI
31st Jul 2025581 AMAQI
31st Jul 2025652 AMAQI
31st Jul 2025653 AMAQI
31st Jul 2025654 AMAQI
31°C27/36°C
31st Jul 2025655 AMAQI
31st Jul 2025656 AMAQI
31st Jul 2025657 AMAQI
31st Jul 2025658 AMAQI
31st Jul 2025609 AMAQI
31st Jul 20255810 AMAQI
31st Jul 20255611 AMAQI
31st Jul 20255512 PMAQI
31st Jul 2025531 PMAQI
31st Jul 2025562 PMAQI
31st Jul 2025463 PMAQI
31st Jul 2025514 PMAQI
31st Jul 2025545 PMAQI
31st Jul 2025576 PMAQI
31st Jul 2025607 PMAQI
31st Jul 2025608 PMAQI
31st Jul 2025619 PMAQI
31st Jul 20256010 PMAQI
31st Jul 20256211 PMAQI
1st Aug 20255712 AMAQI
1st Aug 2025581 AMAQI
1st Aug 2025552 AMAQI
1st Aug 2025543 AMAQI
1st Aug 2025544 AMAQI
31°C27/36°C
1st Aug 2025555 AMAQI
1st Aug 2025566 AMAQI
1st Aug 2025597 AMAQI
1st Aug 2025568 AMAQI
1st Aug 2025569 AMAQI
1st Aug 20255610 AMAQI
1st Aug 20255211 AMAQI
1st Aug 20255012 PMAQI
1st Aug 2025371 PMAQI
1st Aug 2025502 PMAQI
1st Aug 2025413 PMAQI
1st Aug 2025404 PMAQI
1st Aug 2025495 PMAQI
1st Aug 2025476 PMAQI
1st Aug 2025517 PMAQI
1st Aug 2025508 PMAQI
1st Aug 2025539 PMAQI
1st Aug 20255610 PMAQI
1st Aug 20255311 PMAQI
2nd Aug 20255412 AMAQI
2nd Aug 2025561 AMAQI
2nd Aug 2025562 AMAQI
2nd Aug 2025563 AMAQI
2nd Aug 2025564 AMAQI
27°C25/31°C
2nd Aug 2025565 AMAQI
2nd Aug 2025566 AMAQI
2nd Aug 2025467 AMAQI
2nd Aug 2025478 AMAQI
2nd Aug 2025469 AMAQI
2nd Aug 20255210 AMAQI
2nd Aug 20255011 AMAQI
2nd Aug 20255212 PMAQI
2nd Aug 2025541 PMAQI
2nd Aug 2025492 PMAQI
2nd Aug 2025563 PMAQI
2nd Aug 2025564 PMAQI
2nd Aug 2025595 PMAQI
2nd Aug 2025606 PMAQI
2nd Aug 2025527 PMAQI
2nd Aug 2025578 PMAQI
2nd Aug 2025599 PMAQI
2nd Aug 20255610 PMAQI
2nd Aug 20255411 PMAQI
3rd Aug 20255512 AMAQI
--°C/°C
5 AM
11 AM
6 PM
11 PM
4 AM
--°C/°C
Day time
Avg. Highest Time
5 AM - 6 PM
57AQI
14 hours / Day
420 hours / Month
Avg. Lowest Time
5 AM - 6 PM
57AQI
14 hours / Day
420 hours / Month
In the last 30 days, during the daytime, the highest AQI was between 5 AM to 6 PM (Avg. 57), while the lowest AQI was between 5 AM to 6 PM (Avg. 57).
Night time
Avg. Highest Time
12 AM - 11 PM
58AQI
10 hours / Day
300 hours / Month
Avg. Lowest Time
12 AM - 11 PM
58AQI
10 hours / Day
300 hours / Month
In the last 30 days, during the daytime, the highest AQI was between 12 AM to 11 PM (Avg. 58), while the lowest AQI was between 12 AM to 11 PM (Avg. 58).
2025 Days Vs Air Quality
Son Tay, Ha Noi, Vietnam
2025
2%
5
68%
145
23%
50
6%
13
Total number of days with different AQI categories in last 214 days in 2025 (151 days remaining)
Good
5 DaysModerate
145 DaysPoor
50 DaysUnhealthy
13 DaysSevere
0 DaysHazardous
0 DaysUnder WHO’s Safe Air Quality Limits: 2%
Health Risk Level:
Extreme
In 2025, 2% of 214 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.
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
53AQI
53AQI
133AQI
108AQI
101AQI
94AQI
65AQI
59AQI
57AQI
53AQI
No. of days
Jan.Feb.Mar.Apr.MayJun.Jul.Aug.Sep.Oct.Nov.Dec.Total Days
202588AQI
5
16
10
13
12
3
17
14
22
8
31
30
5
26
1
5
145
50
13
Highest AQI recorded in
January133AQI
Lowest AQI recorded in
August53AQI
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.)
88AQILeast Polluted Year Recorded
2021(Avg.)
9AQISon Tay's annual 2025 AQI (88) shows an average percentage change of 360.9% (worsened AQI) compared to previous years: 2021 (9), 2023 (34), 2024 (71).
