Phra Nakhon Si Ayutthaya, Phra Nakhon Si Ayutthaya, Thailand 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
Phra Nakhon Si Ayutthaya, Phra Nakhon Si Ayutthaya, Thailand
2021
2022
2023
2024
2025
AQI
.
Days
AQI Trends: Highest and Lowest
Highest AQI recorded on
17th Aug 2024
116AQILowest AQI recorded on
27th Aug 2021
30AQISame Day Analysis (5th August ):
On this day, AQI across the 5 years varied significantly: 2025 ranks 2nd highest AQI at 55 of Moderate air quality, showing improvement over 2023 on the same day.
Download 2024 Annual Data
World Air Quality Report
Day & Night AQI Trend: 6th Aug - 7th Aug 2025
Phra Nakhon Si Ayutthaya, Phra Nakhon Si Ayutthaya, Thailand
AQI
Day
Night
.
5 AM6th Aug 2025
6 PM
4 AM7th Aug 2025
Day time
Avg. Highest Time
12AMNaNth undefined
AQI
Avg. Lowest Time
12AMNaNth undefined
AQI
Night time
Avg. Highest Time
9AM6th Aug
65AQI
Avg. Lowest Time
3PM6th Aug
54AQI
In the last 24 hours,
Phra Nakhon Si Ayutthaya's AQI reached its highest point of 65 at 9 AM during the Night, while the lowest point, undefined, was recorded at 4 AM during the Night between 6th Aug and 7th Aug 2025.
Day & Night AQI Trend : Jul - Aug 2025
Phra Nakhon Si Ayutthaya, Phra Nakhon Si Ayutthaya, Thailand
JulAug
08th - 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 - 06th06th - 07th07th
Day
Night
8th Jul 2025575 AMAQI
8th Jul 2025566 AMAQI
8th Jul 2025567 AMAQI
8th Jul 2025578 AMAQI
8th Jul 2025579 AMAQI
8th Jul 20257310 AMAQI
8th Jul 20255811 AMAQI
8th Jul 20255612 PMAQI
8th Jul 2025561 PMAQI
8th Jul 2025562 PMAQI
8th Jul 2025623 PMAQI
8th Jul 2025594 PMAQI
8th Jul 2025585 PMAQI
8th Jul 2025566 PMAQI
8th Jul 2025557 PMAQI
8th Jul 2025558 PMAQI
8th Jul 2025559 PMAQI
8th Jul 20255510 PMAQI
8th Jul 20255511 PMAQI
9th Jul 20255612 AMAQI
9th Jul 2025561 AMAQI
9th Jul 2025572 AMAQI
9th Jul 2025573 AMAQI
9th Jul 2025574 AMAQI
29°C25/35°C
9th Jul 2025575 AMAQI
9th Jul 2025576 AMAQI
9th Jul 2025567 AMAQI
9th Jul 2025568 AMAQI
9th Jul 2025589 AMAQI
9th Jul 20256110 AMAQI
9th Jul 20255811 AMAQI
9th Jul 20255612 PMAQI
9th Jul 2025551 PMAQI
9th Jul 2025542 PMAQI
9th Jul 2025543 PMAQI
9th Jul 2025544 PMAQI
9th Jul 2025555 PMAQI
9th Jul 2025566 PMAQI
9th Jul 2025557 PMAQI
9th Jul 2025558 PMAQI
9th Jul 2025559 PMAQI
9th Jul 20255610 PMAQI
9th Jul 20255511 PMAQI
10th Jul 20255612 AMAQI
10th Jul 2025571 AMAQI
10th Jul 2025572 AMAQI
10th Jul 2025573 AMAQI
10th Jul 2025574 AMAQI
29°C26/32°C
10th Jul 2025575 AMAQI
10th Jul 2025576 AMAQI
10th Jul 2025557 AMAQI
10th Jul 2025588 AMAQI
10th Jul 2025609 AMAQI
10th Jul 20255810 AMAQI
10th Jul 20256011 AMAQI
10th Jul 20256012 PMAQI
10th Jul 2025581 PMAQI
10th Jul 2025592 PMAQI
10th Jul 2025573 PMAQI
10th Jul 2025584 PMAQI
10th Jul 2025585 PMAQI
10th Jul 2025586 PMAQI
10th Jul 2025567 PMAQI
10th Jul 2025568 PMAQI
10th Jul 2025569 PMAQI
10th Jul 20255610 PMAQI
10th Jul 20255611 PMAQI
11th Jul 20255512 AMAQI
11th Jul 2025561 AMAQI
11th Jul 2025562 AMAQI
11th Jul 2025583 AMAQI
11th Jul 2025574 AMAQI
27°C25/29°C
11th Jul 2025575 AMAQI
11th Jul 2025576 AMAQI
11th Jul 2025537 AMAQI
11th Jul 2025548 AMAQI
11th Jul 2025569 AMAQI
11th Jul 20255810 AMAQI
11th Jul 20255611 AMAQI
11th Jul 20255612 PMAQI
11th Jul 2025541 PMAQI
11th Jul 2025542 PMAQI
11th Jul 2025543 PMAQI
11th Jul 2025544 PMAQI
11th Jul 2025585 PMAQI
11th Jul 2025576 PMAQI
11th Jul 2025567 PMAQI
11th Jul 2025568 PMAQI
11th Jul 2025569 PMAQI
11th Jul 20255610 PMAQI
11th Jul 20255611 PMAQI
12th Jul 20255712 AMAQI
12th Jul 2025581 AMAQI
12th Jul 2025582 AMAQI
12th Jul 2025573 AMAQI
12th Jul 2025564 AMAQI
27°C25/30°C
12th Jul 2025575 AMAQI
12th Jul 2025576 AMAQI
12th Jul 2025537 AMAQI
12th Jul 2025568 AMAQI
12th Jul 2025589 AMAQI
12th Jul 20255710 AMAQI
12th Jul 20255711 AMAQI
12th Jul 20255512 PMAQI
12th Jul 2025561 PMAQI
12th Jul 2025562 PMAQI
12th Jul 2025563 PMAQI
12th Jul 2025554 PMAQI
12th Jul 2025575 PMAQI
12th Jul 2025596 PMAQI
12th Jul 2025577 PMAQI
12th Jul 2025568 PMAQI
12th Jul 2025579 PMAQI
12th Jul 20255710 PMAQI
12th Jul 20255511 PMAQI
13th Jul 20255612 AMAQI
13th Jul 2025581 AMAQI
13th Jul 2025582 AMAQI
13th Jul 2025583 AMAQI
13th Jul 2025584 AMAQI
27°C24/32°C
13th Jul 2025585 AMAQI
13th Jul 2025586 AMAQI
13th Jul 2025547 AMAQI
13th Jul 2025548 AMAQI
13th Jul 2025589 AMAQI
13th Jul 20255810 AMAQI
13th Jul 20255611 AMAQI
13th Jul 20255612 PMAQI
13th Jul 2025561 PMAQI
13th Jul 2025602 PMAQI
13th Jul 2025593 PMAQI
13th Jul 2025604 PMAQI
13th Jul 2025585 PMAQI
13th Jul 2025576 PMAQI
13th Jul 2025567 PMAQI
13th Jul 2025578 PMAQI
13th Jul 2025579 PMAQI
13th Jul 20255610 PMAQI
13th Jul 20255611 PMAQI
14th Jul 20255612 AMAQI
14th Jul 2025581 AMAQI
14th Jul 2025582 AMAQI
14th Jul 2025583 AMAQI
14th Jul 2025584 AMAQI
29°C25/35°C
14th Jul 2025585 AMAQI
14th Jul 2025586 AMAQI
14th Jul 2025587 AMAQI
14th Jul 2025608 AMAQI
14th Jul 2025529 AMAQI
14th Jul 20255610 AMAQI
14th Jul 20255811 AMAQI
14th Jul 20255812 PMAQI
14th Jul 2025571 PMAQI
14th Jul 2025562 PMAQI
14th Jul 2025583 PMAQI
14th Jul 2025584 PMAQI
14th Jul 2025605 PMAQI
14th Jul 2025596 PMAQI
14th Jul 2025577 PMAQI
14th Jul 2025588 PMAQI
14th Jul 2025579 PMAQI
14th Jul 20255610 PMAQI
14th Jul 20255711 PMAQI
15th Jul 20255612 AMAQI
15th Jul 2025561 AMAQI
15th Jul 2025572 AMAQI
15th Jul 2025583 AMAQI
15th Jul 2025584 AMAQI
30°C26/35°C
15th Jul 2025585 AMAQI
15th Jul 2025586 AMAQI
15th Jul 2025567 AMAQI
15th Jul 2025588 AMAQI
15th Jul 2025579 AMAQI
15th Jul 20255910 AMAQI
15th Jul 20256111 AMAQI
15th Jul 20256012 PMAQI
15th Jul 2025571 PMAQI
15th Jul 2025582 PMAQI
15th Jul 2025583 PMAQI
15th Jul 2025594 PMAQI
15th Jul 2025585 PMAQI
15th Jul 2025566 PMAQI
15th Jul 2025537 PMAQI
15th Jul 2025558 PMAQI
15th Jul 2025549 PMAQI
15th Jul 20255510 PMAQI
15th Jul 20255511 PMAQI
16th Jul 20255512 AMAQI
16th Jul 2025561 AMAQI
16th Jul 2025572 AMAQI
16th Jul 2025573 AMAQI
16th Jul 2025584 AMAQI
30°C26/34°C
16th Jul 2025585 AMAQI
16th Jul 2025586 AMAQI
16th Jul 2025527 AMAQI
16th Jul 2025538 AMAQI
16th Jul 2025539 AMAQI
16th Jul 20255710 AMAQI
16th Jul 20256011 AMAQI
16th Jul 20255912 PMAQI
16th Jul 2025601 PMAQI
16th Jul 2025602 PMAQI
16th Jul 2025603 PMAQI
16th Jul 2025554 PMAQI
16th Jul 2025565 PMAQI
16th Jul 2025556 PMAQI
16th Jul 2025527 PMAQI
16th Jul 2025538 PMAQI
16th Jul 2025539 PMAQI
16th Jul 20255310 PMAQI
16th Jul 20254911 PMAQI
17th Jul 20254812 AMAQI
17th Jul 2025541 AMAQI
17th Jul 2025562 AMAQI
17th Jul 2025563 AMAQI
17th Jul 2025564 AMAQI
29°C26/34°C
17th Jul 2025575 AMAQI
17th Jul 2025576 AMAQI
17th Jul 2025567 AMAQI
17th Jul 2025598 AMAQI
17th Jul 2025629 AMAQI
17th Jul 20255210 AMAQI
17th Jul 20255411 AMAQI
17th Jul 20255312 PMAQI
17th Jul 2025491 PMAQI
17th Jul 2025512 PMAQI
17th Jul 2025503 PMAQI
17th Jul 2025504 PMAQI
17th Jul 2025475 PMAQI
17th Jul 2025496 PMAQI
17th Jul 2025447 PMAQI
17th Jul 2025478 PMAQI
17th Jul 2025499 PMAQI
17th Jul 20254810 PMAQI
17th Jul 20254811 PMAQI
18th Jul 20254812 AMAQI
18th Jul 2025541 AMAQI
18th Jul 2025542 AMAQI
18th Jul 2025553 AMAQI
18th Jul 2025554 AMAQI
29°C26/34°C
18th Jul 2025555 AMAQI
18th Jul 2025556 AMAQI
18th Jul 2025587 AMAQI
18th Jul 2025498 AMAQI
18th Jul 2025569 AMAQI
18th Jul 20254010 AMAQI
18th Jul 20254511 AMAQI
18th Jul 20254612 PMAQI
18th Jul 2025421 PMAQI
18th Jul 2025392 PMAQI
18th Jul 2025463 PMAQI
18th Jul 2025454 PMAQI
18th Jul 2025415 PMAQI
18th Jul 2025446 PMAQI
18th Jul 2025487 PMAQI
18th Jul 2025488 PMAQI
18th Jul 2025449 PMAQI
18th Jul 20254410 PMAQI
18th Jul 20254011 PMAQI
19th Jul 20254912 AMAQI
19th Jul 2025531 AMAQI
19th Jul 2025542 AMAQI
19th Jul 2025543 AMAQI
19th Jul 2025534 AMAQI
28°C25/33°C
19th Jul 2025545 AMAQI
19th Jul 2025536 AMAQI
19th Jul 2025547 AMAQI
19th Jul 2025468 AMAQI
19th Jul 2025509 AMAQI
19th Jul 20254710 AMAQI
19th Jul 20254411 AMAQI
19th Jul 20254112 PMAQI
19th Jul 2025401 PMAQI
19th Jul 2025392 PMAQI
19th Jul 2025443 PMAQI
19th Jul 2025414 PMAQI
19th Jul 2025425 PMAQI
19th Jul 2025466 PMAQI
19th Jul 2025527 PMAQI
19th Jul 2025538 PMAQI
19th Jul 2025499 PMAQI
19th Jul 20255110 PMAQI
19th Jul 20255111 PMAQI
20th Jul 20255312 AMAQI
20th Jul 2025541 AMAQI
20th Jul 2025542 AMAQI
20th Jul 2025533 AMAQI
20th Jul 2025534 AMAQI
28°C25/32°C
20th Jul 2025535 AMAQI
20th Jul 2025536 AMAQI
20th Jul 2025467 AMAQI
20th Jul 2025428 AMAQI
20th Jul 2025429 AMAQI
20th Jul 20254410 AMAQI
20th Jul 20253811 AMAQI
20th Jul 20254012 PMAQI
20th Jul 2025401 PMAQI
20th Jul 2025452 PMAQI
20th Jul 2025453 PMAQI
20th Jul 2025444 PMAQI
20th Jul 2025475 PMAQI
20th Jul 2025456 PMAQI
20th Jul 2025487 PMAQI
20th Jul 2025448 PMAQI
20th Jul 2025529 PMAQI
20th Jul 20255110 PMAQI
20th Jul 20254911 PMAQI
21st Jul 20255212 AMAQI
21st Jul 2025521 AMAQI
21st Jul 2025542 AMAQI
21st Jul 2025523 AMAQI
21st Jul 2025534 AMAQI
26°C24/29°C
21st Jul 2025535 AMAQI
21st Jul 2025536 AMAQI
21st Jul 2025477 AMAQI
21st Jul 2025468 AMAQI
21st Jul 2025479 AMAQI
21st Jul 20254410 AMAQI
21st Jul 20254411 AMAQI
21st Jul 20254212 PMAQI
21st Jul 2025421 PMAQI
21st Jul 2025472 PMAQI
21st Jul 2025443 PMAQI
21st Jul 2025434 PMAQI
21st Jul 2025465 PMAQI
21st Jul 2025516 PMAQI
21st Jul 2025517 PMAQI
21st Jul 2025498 PMAQI
21st Jul 2025499 PMAQI
21st Jul 20254710 PMAQI
21st Jul 20255111 PMAQI
22nd Jul 20255112 AMAQI
22nd Jul 2025521 AMAQI
22nd Jul 2025522 AMAQI
22nd Jul 2025523 AMAQI
22nd Jul 2025524 AMAQI
25°C24/27°C
22nd Jul 2025525 AMAQI
22nd Jul 2025526 AMAQI
22nd Jul 2025487 AMAQI
22nd Jul 2025498 AMAQI
22nd Jul 2025509 AMAQI
22nd Jul 20254810 AMAQI
22nd Jul 20254911 AMAQI
22nd Jul 20254812 PMAQI
22nd Jul 2025421 PMAQI
22nd Jul 2025492 PMAQI
22nd Jul 2025473 PMAQI
22nd Jul 2025494 PMAQI
22nd Jul 2025495 PMAQI
22nd Jul 2025506 PMAQI
22nd Jul 2025497 PMAQI
22nd Jul 2025488 PMAQI
22nd Jul 2025519 PMAQI
22nd Jul 20255210 PMAQI
22nd Jul 20255211 PMAQI
23rd Jul 20255212 AMAQI
23rd Jul 2025531 AMAQI
23rd Jul 2025532 AMAQI
23rd Jul 2025523 AMAQI
23rd Jul 2025524 AMAQI
26°C24/28°C
23rd Jul 2025525 AMAQI
23rd Jul 2025526 AMAQI
23rd Jul 2025427 AMAQI
23rd Jul 2025388 AMAQI
23rd Jul 2025339 AMAQI
23rd Jul 20253610 AMAQI
23rd Jul 20254311 AMAQI
23rd Jul 20254512 PMAQI
23rd Jul 2025481 PMAQI
23rd Jul 2025542 PMAQI
23rd Jul 2025483 PMAQI
23rd Jul 2025504 PMAQI
23rd Jul 2025525 PMAQI
23rd Jul 2025496 PMAQI
23rd Jul 2025547 PMAQI
23rd Jul 2025548 PMAQI
23rd Jul 2025529 PMAQI
23rd Jul 20255210 PMAQI
23rd Jul 20255311 PMAQI
24th Jul 20255312 AMAQI
24th Jul 2025541 AMAQI
24th Jul 2025522 AMAQI
24th Jul 2025523 AMAQI
24th Jul 2025524 AMAQI
27°C25/30°C
24th Jul 2025525 AMAQI
24th Jul 2025516 AMAQI
24th Jul 2025517 AMAQI
24th Jul 2025488 AMAQI
24th Jul 2025529 AMAQI
24th Jul 20254710 AMAQI
24th Jul 20254511 AMAQI
24th Jul 20255112 PMAQI
24th Jul 2025501 PMAQI
24th Jul 2025532 PMAQI
24th Jul 2025553 PMAQI
24th Jul 2025534 PMAQI
24th Jul 2025505 PMAQI
24th Jul 2025536 PMAQI
24th Jul 2025527 PMAQI
24th Jul 2025538 PMAQI
24th Jul 2025549 PMAQI
24th Jul 20255410 PMAQI
24th Jul 20255511 PMAQI
25th Jul 20255512 AMAQI
25th Jul 2025551 AMAQI
25th Jul 2025542 AMAQI
25th Jul 2025533 AMAQI
25th Jul 2025534 AMAQI
28°C25/33°C
25th Jul 2025535 AMAQI
25th Jul 2025536 AMAQI
25th Jul 2025567 AMAQI
25th Jul 2025578 AMAQI
25th Jul 2025609 AMAQI
25th Jul 20254410 AMAQI
25th Jul 20255811 AMAQI
25th Jul 20255712 PMAQI
25th Jul 2025571 PMAQI
25th Jul 2025572 PMAQI
25th Jul 2025563 PMAQI
25th Jul 2025564 PMAQI
25th Jul 2025545 PMAQI
25th Jul 2025576 PMAQI
25th Jul 2025567 PMAQI
25th Jul 2025568 PMAQI
25th Jul 2025559 PMAQI
25th Jul 20255610 PMAQI
25th Jul 20255611 PMAQI
26th Jul 20255512 AMAQI
26th Jul 2025571 AMAQI
26th Jul 2025552 AMAQI
26th Jul 2025553 AMAQI
26th Jul 2025554 AMAQI
29°C25/33°C
26th Jul 2025555 AMAQI
26th Jul 2025556 AMAQI
26th Jul 2025567 AMAQI
26th Jul 2025588 AMAQI
26th Jul 2025629 AMAQI
26th Jul 20255910 AMAQI
26th Jul 20256011 AMAQI
26th Jul 20256212 PMAQI
26th Jul 2025601 PMAQI
26th Jul 2025622 PMAQI
26th Jul 2025603 PMAQI
26th Jul 2025584 PMAQI
26th Jul 2025625 PMAQI
26th Jul 2025596 PMAQI
26th Jul 2025567 PMAQI
26th Jul 2025558 PMAQI
26th Jul 2025559 PMAQI
26th Jul 20255410 PMAQI
26th Jul 20255511 PMAQI
27th Jul 20255512 AMAQI
27th Jul 2025561 AMAQI
27th Jul 2025562 AMAQI
27th Jul 2025563 AMAQI
27th Jul 2025564 AMAQI
28°C25/33°C
27th Jul 2025575 AMAQI
27th Jul 2025566 AMAQI
27th Jul 2025557 AMAQI
27th Jul 2025588 AMAQI
27th Jul 2025569 AMAQI
27th Jul 20255410 AMAQI
27th Jul 20254911 AMAQI
27th Jul 20254412 PMAQI
27th Jul 2025441 PMAQI
27th Jul 2025442 PMAQI
27th Jul 2025513 PMAQI
27th Jul 2025504 PMAQI
27th Jul 2025505 PMAQI
27th Jul 2025516 PMAQI
27th Jul 2025547 PMAQI
27th Jul 2025538 PMAQI
27th Jul 2025559 PMAQI
27th Jul 20255410 PMAQI
27th Jul 20255611 PMAQI
28th Jul 20255612 AMAQI
28th Jul 2025571 AMAQI
28th Jul 2025552 AMAQI
28th Jul 2025553 AMAQI
28th Jul 2025554 AMAQI
27°C26/30°C
28th Jul 2025555 AMAQI
28th Jul 2025556 AMAQI
28th Jul 2025607 AMAQI
28th Jul 2025618 AMAQI
28th Jul 2025579 AMAQI
28th Jul 20255710 AMAQI
28th Jul 20255411 AMAQI
28th Jul 20255212 PMAQI
28th Jul 2025491 PMAQI
28th Jul 2025532 PMAQI
28th Jul 2025543 PMAQI
28th Jul 2025544 PMAQI
28th Jul 2025535 PMAQI
28th Jul 2025546 PMAQI
28th Jul 2025547 PMAQI
28th Jul 2025548 PMAQI
28th Jul 2025569 PMAQI
28th Jul 20255610 PMAQI
28th Jul 20255411 PMAQI
29th Jul 20255412 AMAQI
29th Jul 2025561 AMAQI
29th Jul 2025562 AMAQI
29th Jul 2025563 AMAQI
29th Jul 2025564 AMAQI
28°C26/32°C
29th Jul 2025555 AMAQI
29th Jul 2025566 AMAQI
29th Jul 2025517 AMAQI
29th Jul 2025548 AMAQI
29th Jul 2025529 AMAQI
29th Jul 20255310 AMAQI
29th Jul 20254811 AMAQI
29th Jul 20254012 PMAQI
29th Jul 2025431 PMAQI
29th Jul 2025442 PMAQI
29th Jul 2025523 PMAQI
29th Jul 2025544 PMAQI
29th Jul 2025515 PMAQI
29th Jul 2025526 PMAQI
29th Jul 2025537 PMAQI
29th Jul 2025548 PMAQI
29th Jul 2025549 PMAQI
29th Jul 20255510 PMAQI
29th Jul 20255411 PMAQI
30th Jul 20255512 AMAQI
30th Jul 2025541 AMAQI
30th Jul 2025552 AMAQI
30th Jul 2025533 AMAQI
30th Jul 2025544 AMAQI
28°C26/33°C
30th Jul 2025545 AMAQI
30th Jul 2025546 AMAQI
30th Jul 2025567 AMAQI
30th Jul 2025548 AMAQI
30th Jul 2025589 AMAQI
30th Jul 20253710 AMAQI
30th Jul 20255211 AMAQI
30th Jul 20255312 PMAQI
30th Jul 2025501 PMAQI
30th Jul 2025502 PMAQI
30th Jul 2025513 PMAQI
30th Jul 2025524 PMAQI
30th Jul 2025575 PMAQI
30th Jul 2025566 PMAQI
30th Jul 2025547 PMAQI
30th Jul 2025548 PMAQI
30th Jul 2025549 PMAQI
30th Jul 20255610 PMAQI
30th Jul 20255811 PMAQI
31st Jul 20255712 AMAQI
31st Jul 2025561 AMAQI
31st Jul 2025552 AMAQI
31st Jul 2025553 AMAQI
31st Jul 2025554 AMAQI
29°C26/34°C
31st Jul 2025555 AMAQI
31st Jul 2025556 AMAQI
31st Jul 2025557 AMAQI
31st Jul 2025558 AMAQI
31st Jul 2025589 AMAQI
31st Jul 20255610 AMAQI
31st Jul 20255511 AMAQI
31st Jul 20255812 PMAQI
31st Jul 2025591 PMAQI
31st Jul 2025572 PMAQI
31st Jul 2025603 PMAQI
31st Jul 2025594 PMAQI
31st Jul 2025585 PMAQI
31st Jul 2025566 PMAQI
31st Jul 2025567 PMAQI
31st Jul 2025588 PMAQI
31st Jul 2025649 PMAQI
31st Jul 20256110 PMAQI
31st Jul 20256011 PMAQI
1st Aug 20255412 AMAQI
1st Aug 2025551 AMAQI
1st Aug 2025532 AMAQI
1st Aug 2025503 AMAQI
1st Aug 2025514 AMAQI
29°C25/35°C
1st Aug 2025535 AMAQI
1st Aug 2025556 AMAQI
1st Aug 2025667 AMAQI
1st Aug 2025618 AMAQI
1st Aug 2025629 AMAQI
1st Aug 20256210 AMAQI
1st Aug 20255611 AMAQI
1st Aug 20255912 PMAQI
1st Aug 2025561 PMAQI
1st Aug 2025622 PMAQI
1st Aug 2025683 PMAQI
1st Aug 2025624 PMAQI
1st Aug 2025625 PMAQI
1st Aug 2025626 PMAQI
1st Aug 2025617 PMAQI
1st Aug 2025618 PMAQI
1st Aug 2025589 PMAQI
1st Aug 20256010 PMAQI
1st Aug 20256211 PMAQI
2nd Aug 20255812 AMAQI
2nd Aug 2025561 AMAQI
2nd Aug 2025542 AMAQI
2nd Aug 2025563 AMAQI
2nd Aug 2025554 AMAQI
30°C25/36°C
2nd Aug 2025555 AMAQI
2nd Aug 2025556 AMAQI
2nd Aug 2025527 AMAQI
2nd Aug 2025608 AMAQI
2nd Aug 2025669 AMAQI
2nd Aug 20255610 AMAQI
2nd Aug 20255411 AMAQI
2nd Aug 20254612 PMAQI
2nd Aug 2025521 PMAQI
2nd Aug 2025522 PMAQI
2nd Aug 2025553 PMAQI
2nd Aug 2025624 PMAQI
2nd Aug 2025585 PMAQI
2nd Aug 2025586 PMAQI
2nd Aug 2025587 PMAQI
2nd Aug 2025608 PMAQI
2nd Aug 2025599 PMAQI
2nd Aug 20255910 PMAQI
2nd Aug 20255911 PMAQI
3rd Aug 20255812 AMAQI
3rd Aug 2025561 AMAQI
3rd Aug 2025562 AMAQI
3rd Aug 2025573 AMAQI
3rd Aug 2025574 AMAQI
30°C25/36°C
3rd Aug 2025575 AMAQI
3rd Aug 2025576 AMAQI
3rd Aug 2025547 AMAQI
3rd Aug 2025538 AMAQI
3rd Aug 2025629 AMAQI
3rd Aug 20256910 AMAQI
3rd Aug 20255811 AMAQI
3rd Aug 20254612 PMAQI
3rd Aug 2025531 PMAQI
3rd Aug 2025482 PMAQI
3rd Aug 2025503 PMAQI
3rd Aug 2025484 PMAQI
3rd Aug 2025505 PMAQI
3rd Aug 2025506 PMAQI
3rd Aug 2025547 PMAQI
3rd Aug 2025568 PMAQI
3rd Aug 2025569 PMAQI
3rd Aug 20256010 PMAQI
3rd Aug 20255411 PMAQI
4th Aug 20255712 AMAQI
4th Aug 2025561 AMAQI
4th Aug 2025562 AMAQI
4th Aug 2025563 AMAQI
4th Aug 2025564 AMAQI
31°C26/37°C
4th Aug 2025555 AMAQI
4th Aug 2025566 AMAQI
4th Aug 2025587 AMAQI
4th Aug 2025568 AMAQI
4th Aug 2025589 AMAQI
4th Aug 20256310 AMAQI
4th Aug 20255011 AMAQI
4th Aug 20255412 PMAQI
4th Aug 2025501 PMAQI
4th Aug 2025532 PMAQI
4th Aug 2025523 PMAQI
4th Aug 2025594 PMAQI
4th Aug 2025555 PMAQI
4th Aug 2025566 PMAQI
4th Aug 2025567 PMAQI
4th Aug 2025568 PMAQI
4th Aug 2025589 PMAQI
4th Aug 20255610 PMAQI
4th Aug 20255611 PMAQI
5th Aug 20255512 AMAQI
5th Aug 2025561 AMAQI
5th Aug 2025572 AMAQI
5th Aug 2025563 AMAQI
5th Aug 2025564 AMAQI
31°C26/37°C
5th Aug 2025565 AMAQI
5th Aug 2025566 AMAQI
5th Aug 2025507 AMAQI
5th Aug 2025548 AMAQI
5th Aug 2025569 AMAQI
5th Aug 20255810 AMAQI
5th Aug 20255511 AMAQI
5th Aug 20255412 PMAQI
5th Aug 2025541 PMAQI
5th Aug 2025542 PMAQI
5th Aug 2025553 PMAQI
5th Aug 2025524 PMAQI
5th Aug 2025545 PMAQI
5th Aug 2025546 PMAQI
5th Aug 2025557 PMAQI
5th Aug 2025578 PMAQI
5th Aug 2025579 PMAQI
5th Aug 20255610 PMAQI
5th Aug 20255711 PMAQI
6th Aug 20255812 AMAQI
6th Aug 2025561 AMAQI
6th Aug 2025562 AMAQI
6th Aug 2025563 AMAQI
6th Aug 2025564 AMAQI
31°C27/36°C
6th Aug 2025565 AMAQI
6th Aug 2025566 AMAQI
6th Aug 2025587 AMAQI
6th Aug 2025628 AMAQI
6th Aug 2025659 AMAQI
6th Aug 20256310 AMAQI
6th Aug 20256211 AMAQI
6th Aug 20255912 PMAQI
6th Aug 2025581 PMAQI
6th Aug 2025542 PMAQI
6th Aug 2025543 PMAQI
6th Aug 2025554 PMAQI
6th Aug 2025575 PMAQI
6th Aug 2025576 PMAQI
6th Aug 2025557 PMAQI
6th Aug 2025568 PMAQI
6th Aug 2025579 PMAQI
6th Aug 20255810 PMAQI
6th Aug 20255711 PMAQI
--°C/°C
5 AM
11 AM
6 PM
11 PM
4 AM
--°C/°C
Day time
Avg. Highest Time
5 AM - 6 PM
54AQI
14 hours / Day
420 hours / Month
Avg. Lowest Time
5 AM - 6 PM
54AQI
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. 54), while the lowest AQI was between 5 AM to 6 PM (Avg. 54).
Night time
Avg. Highest Time
12 AM - 11 PM
55AQI
10 hours / Day
300 hours / Month
Avg. Lowest Time
12 AM - 11 PM
55AQI
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. 55), while the lowest AQI was between 12 AM to 11 PM (Avg. 55).
2025 Days Vs Air Quality
Phra Nakhon Si Ayutthaya, Phra Nakhon Si Ayutthaya, Thailand
2025
3%
7
74%
160
22%
48
0.9%
2
Total number of days with different AQI categories in last 218 days in 2025 (147 days remaining)
Good
7 DaysModerate
160 DaysPoor
48 DaysUnhealthy
2 DaysSevere
0 DaysHazardous
0 DaysUnder WHO’s Safe Air Quality Limits: 3%
Health Risk Level:
Extreme
In 2025, 3% of 218 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
Phra Nakhon Si Ayutthaya, Phra Nakhon Si Ayutthaya, Thailand
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
88AQI
88AQI
2nd January 2025
104AQI
104AQI
3rd January 2025
95AQI
95AQI
4th January 2025
99AQI
99AQI
5th January 2025
105AQI
105AQI
6th January 2025
117AQI
117AQI
7th January 2025
132AQI
132AQI
8th January 2025
115AQI
115AQI
9th January 2025
129AQI
129AQI
10th January 2025
91AQI
91AQI
11th January 2025
82AQI
82AQI
12th January 2025
88AQI
88AQI
13th January 2025
93AQI
93AQI
14th January 2025
124AQI
124AQI
15th January 2025
123AQI
123AQI
16th January 2025
76AQI
76AQI
17th January 2025
94AQI
94AQI
18th January 2025
108AQI
108AQI
19th January 2025
118AQI
118AQI
20th January 2025
130AQI
130AQI
21st January 2025
133AQI
133AQI
22nd January 2025
139AQI
139AQI
23rd January 2025
155AQI
155AQI
24th January 2025
162AQI
162AQI
25th January 2025
146AQI
146AQI
26th January 2025
125AQI
125AQI
27th January 2025
87AQI
87AQI
28th January 2025
88AQI
88AQI
29th January 2025
87AQI
87AQI
30th January 2025
107AQI
107AQI
31st January 2025
119AQI
119AQI
1st February 2025
134AQI
134AQI
2nd February 2025
128AQI
128AQI
3rd February 2025
134AQI
134AQI
4th February 2025
116AQI
116AQI
5th February 2025
112AQI
112AQI
6th February 2025
111AQI
111AQI
7th February 2025
116AQI
116AQI
8th February 2025
99AQI
99AQI
9th February 2025
79AQI
79AQI
10th February 2025
83AQI
83AQI
11th February 2025
103AQI
103AQI
12th February 2025
118AQI
118AQI
13th February 2025
125AQI
125AQI
14th February 2025
125AQI
125AQI
15th February 2025
134AQI
134AQI
16th February 2025
126AQI
126AQI
17th February 2025
108AQI
108AQI
18th February 2025
88AQI
88AQI
19th February 2025
95AQI
95AQI
20th February 2025
103AQI
103AQI
21st February 2025
106AQI
106AQI
22nd February 2025
103AQI
103AQI
23rd February 2025
103AQI
103AQI
24th February 2025
76AQI
76AQI
25th February 2025
75AQI
75AQI
26th February 2025
67AQI
67AQI
27th February 2025
76AQI
76AQI
28th February 2025
88AQI
88AQI
1st March 2025
76AQI
76AQI
2nd March 2025
74AQI
74AQI
3rd March 2025
73AQI
73AQI
4th March 2025
73AQI
73AQI
5th March 2025
72AQI
72AQI
6th March 2025
72AQI
72AQI
7th March 2025
71AQI
71AQI
8th March 2025
68AQI
68AQI
9th March 2025
82AQI
82AQI
10th March 2025
81AQI
81AQI
11th March 2025
94AQI
94AQI
12th March 2025
78AQI
78AQI
13th March 2025
72AQI
72AQI
14th March 2025
76AQI
76AQI
15th March 2025
82AQI
82AQI
16th March 2025
77AQI
77AQI
17th March 2025
78AQI
78AQI
18th March 2025
87AQI
87AQI
19th March 2025
87AQI
87AQI
20th March 2025
110AQI
110AQI
21st March 2025
110AQI
110AQI
22nd March 2025
129AQI
129AQI
23rd March 2025
142AQI
142AQI
24th March 2025
148AQI
148AQI
25th March 2025
144AQI
144AQI
26th March 2025
127AQI
127AQI
27th March 2025
126AQI
126AQI
28th March 2025
118AQI
118AQI
29th March 2025
117AQI
117AQI
30th March 2025
97AQI
97AQI
31st March 2025
96AQI
96AQI
1st April 2025
104AQI
104AQI
2nd April 2025
106AQI
106AQI
3rd April 2025
107AQI
107AQI
4th April 2025
98AQI
98AQI
5th April 2025
80AQI
80AQI
6th April 2025
81AQI
81AQI
7th April 2025
82AQI
82AQI
8th April 2025
87AQI
87AQI
9th April 2025
79AQI
79AQI
10th April 2025
77AQI
77AQI
11th April 2025
81AQI
81AQI
12th April 2025
71AQI
71AQI
13th April 2025
67AQI
67AQI
14th April 2025
66AQI
66AQI
15th April 2025
78AQI
78AQI
16th April 2025
72AQI
72AQI
17th April 2025
71AQI
71AQI
18th April 2025
62AQI
62AQI
19th April 2025
62AQI
62AQI
20th April 2025
61AQI
61AQI
21st April 2025
61AQI
61AQI
22nd April 2025
62AQI
62AQI
23rd April 2025
66AQI
66AQI
24th April 2025
67AQI
67AQI
25th April 2025
71AQI
71AQI
26th April 2025
62AQI
62AQI
27th April 2025
63AQI
63AQI
28th April 2025
63AQI
63AQI
29th April 2025
68AQI
68AQI
30th April 2025
100AQI
100AQI
1st May 2025
83AQI
83AQI
2nd May 2025
93AQI
93AQI
3rd May 2025
82AQI
82AQI
4th May 2025
73AQI
73AQI
5th May 2025
73AQI
73AQI
6th May 2025
74AQI
74AQI
7th May 2025
70AQI
70AQI
8th May 2025
65AQI
65AQI
9th May 2025
63AQI
63AQI
10th May 2025
70AQI
70AQI
11th May 2025
59AQI
59AQI
12th May 2025
63AQI
63AQI
13th May 2025
58AQI
58AQI
14th May 2025
54AQI
54AQI
15th May 2025
60AQI
60AQI
16th May 2025
63AQI
63AQI
17th May 2025
69AQI
69AQI
18th May 2025
71AQI
71AQI
19th May 2025
73AQI
73AQI
20th May 2025
65AQI
65AQI
21st May 2025
65AQI
65AQI
22nd May 2025
73AQI
73AQI
23rd May 2025
58AQI
58AQI
24th May 2025
58AQI
58AQI
25th May 2025
55AQI
55AQI
26th May 2025
54AQI
54AQI
27th May 2025
54AQI
54AQI
28th May 2025
55AQI
55AQI
29th May 2025
53AQI
53AQI
30th May 2025
59AQI
59AQI
31st May 2025
55AQI
55AQI
1st June 2025
58AQI
58AQI
2nd June 2025
55AQI
55AQI
3rd June 2025
57AQI
57AQI
4th June 2025
64AQI
64AQI
5th June 2025
63AQI
63AQI
6th June 2025
66AQI
66AQI
7th June 2025
64AQI
64AQI
8th June 2025
56AQI
56AQI
9th June 2025
52AQI
52AQI
10th June 2025
57AQI
57AQI
11th June 2025
59AQI
59AQI
12th June 2025
61AQI
61AQI
13th June 2025
56AQI
56AQI
14th June 2025
55AQI
55AQI
15th June 2025
54AQI
54AQI
16th June 2025
50AQI
50AQI
17th June 2025
55AQI
55AQI
18th June 2025
53AQI
53AQI
19th June 2025
53AQI
53AQI
20th June 2025
53AQI
53AQI
21st June 2025
54AQI
54AQI
22nd June 2025
53AQI
53AQI
23rd June 2025
53AQI
53AQI
24th June 2025
54AQI
54AQI
25th June 2025
55AQI
55AQI
26th June 2025
56AQI
56AQI
27th June 2025
56AQI
56AQI
28th June 2025
55AQI
55AQI
29th June 2025
54AQI
54AQI
30th June 2025
53AQI
53AQI
1st July 2025
56AQI
56AQI
2nd July 2025
56AQI
56AQI
3rd July 2025
56AQI
56AQI
4th July 2025
56AQI
56AQI
5th July 2025
57AQI
57AQI
6th July 2025
56AQI
56AQI
7th July 2025
55AQI
55AQI
8th July 2025
56AQI
56AQI
9th July 2025
56AQI
56AQI
10th July 2025
57AQI
57AQI
11th July 2025
55AQI
55AQI
12th July 2025
57AQI
57AQI
13th July 2025
57AQI
57AQI
14th July 2025
57AQI
57AQI
15th July 2025
57AQI
57AQI
16th July 2025
55AQI
55AQI
17th July 2025
51AQI
51AQI
18th July 2025
49AQI
49AQI
19th July 2025
49AQI
49AQI
20th July 2025
48AQI
48AQI
21st July 2025
49AQI
49AQI
22nd July 2025
50AQI
50AQI
23rd July 2025
49AQI
49AQI
24th July 2025
52AQI
52AQI
25th July 2025
55AQI
55AQI
26th July 2025
57AQI
57AQI
27th July 2025
53AQI
53AQI
28th July 2025
55AQI
55AQI
29th July 2025
52AQI
52AQI
30th July 2025
54AQI
54AQI
31st July 2025
57AQI
57AQI
1st August 2025
59AQI
59AQI
2nd August 2025
56AQI
56AQI
3rd August 2025
55AQI
55AQI
4th August 2025
56AQI
56AQI
5th August 2025
55AQI
55AQI
112AQI
105AQI
95AQI
76AQI
65AQI
56AQI
54AQI
56AQI
No. of days
Jan.Feb.Mar.Apr.MayJun.Jul.Aug.Sep.Oct.Nov.Dec.Total Days
202580AQI
12
17
2
10
18
21
10
27
3
31
1
29
6
25
5
7
160
48
2
Highest AQI recorded in
January112AQI
Lowest AQI recorded in
July54AQI
202477AQI
10
21
15
13
1
27
4
23
7
9
11
6
13
17
19
12
3
27
1
4
23
2
29
27
3
29
2
50
250
57
1
Highest AQI recorded in
January111AQI
Lowest AQI recorded in
July49AQI
202387AQI
20
9
14
11
3
15
7
3
6
9
19
2
31
30
31
31
30
30
1
25
4
1
21
8
1
287
59
8
6
Highest AQI recorded in
March142AQI
Lowest AQI recorded in
July65AQI
202268AQI
1
18
12
3
14
5
1
27
3
3
18
7
2
16
15
24
6
22
2
1
22
6
9
19
3
30
23
6
102
178
36
2
Highest AQI recorded in
January91AQI
Lowest AQI recorded in
August33AQI
202168AQI
15
11
5
5
20
3
18
13
2
28
12
19
24
6
28
3
19
9
23
7
17
14
2
28
25
6
127
177
50
8
Highest AQI recorded in
February120AQI
Lowest AQI recorded in
July40AQI
202058AQI
13
21
6
12
27
3
26
5
18
12
17
11
20
10
26
4
21
10
114
134
14
Highest AQI recorded in
December87AQI
Lowest AQI recorded in
June40AQI
Most & Least Polluted Years Over the Last 6 Years
Most Polluted Year Recorded
2023(Avg.)
87AQILeast Polluted Year Recorded
2020(Avg.)
58AQIPhra Nakhon Si Ayutthaya's annual 2025 AQI (80) shows an average percentage change of 13.04% (worsened AQI) compared to previous years: 2020 (58), 2021 (68), 2022 (68), 2023 (87), 2024 (77).
