Hitachiomiya, Ibaraki, Japan 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
Hitachiomiya, Ibaraki, Japan
2021
2022
2023
2024
2025
AQI
.
Days
AQI Trends: Highest and Lowest
Highest AQI recorded on
16th Aug 2023
58AQILowest AQI recorded on
14th Aug 2021
16AQISame Day Analysis (3rd August ):
On this day, AQI across the 5 years varied significantly: 2025 ranks 1st highest AQI at 41 of Good air quality on the same day.
Download 2024 Annual Data
World Air Quality Report
Day & Night AQI Trend: 4th Aug - 5th Aug 2025
Hitachiomiya, Ibaraki, Japan
AQI
Day
Night
.
4 AM4th Aug 2025
6 PM
3 AM5th Aug 2025
Day time
Avg. Highest Time
5PM4th Aug
76AQI
Avg. Lowest Time
7AM4th Aug
40AQI
Night time
Avg. Highest Time
7PM4th Aug
64AQI
Avg. Lowest Time
3AM5th Aug
39AQI
In the last 24 hours,
Hitachiomiya's AQI reached its highest point of 76 at 5 PM during the Day, while the lowest point, 39, was recorded at 3 AM during the Night between 4th Aug and 5th Aug 2025.
Day & Night AQI Trend : Jul - Aug 2025
Hitachiomiya, Ibaraki, Japan
JulAug
06th - 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 - 04th04th - 05th05th
Day
Night
6th Jul 2025444 AMAQI
6th Jul 2025445 AMAQI
6th Jul 2025466 AMAQI
6th Jul 2025467 AMAQI
6th Jul 2025468 AMAQI
6th Jul 2025549 AMAQI
6th Jul 20256410 AMAQI
6th Jul 20256511 AMAQI
6th Jul 20256812 PMAQI
6th Jul 2025631 PMAQI
6th Jul 2025642 PMAQI
6th Jul 2025623 PMAQI
6th Jul 2025614 PMAQI
6th Jul 2025635 PMAQI
6th Jul 2025646 PMAQI
6th Jul 2025687 PMAQI
6th Jul 2025668 PMAQI
6th Jul 2025569 PMAQI
6th Jul 20255410 PMAQI
6th Jul 20255511 PMAQI
7th Jul 20255412 AMAQI
7th Jul 2025521 AMAQI
7th Jul 2025522 AMAQI
7th Jul 2025503 AMAQI
26°C23/30°C
7th Jul 2025524 AMAQI
7th Jul 2025535 AMAQI
7th Jul 2025536 AMAQI
7th Jul 2025537 AMAQI
7th Jul 2025538 AMAQI
7th Jul 2025809 AMAQI
7th Jul 202510110 AMAQI
7th Jul 202510511 AMAQI
7th Jul 20259912 PMAQI
7th Jul 2025831 PMAQI
7th Jul 2025812 PMAQI
7th Jul 2025803 PMAQI
7th Jul 2025804 PMAQI
7th Jul 2025815 PMAQI
7th Jul 2025806 PMAQI
7th Jul 2025787 PMAQI
7th Jul 2025738 PMAQI
7th Jul 2025609 PMAQI
7th Jul 20256210 PMAQI
7th Jul 20256111 PMAQI
8th Jul 20256012 AMAQI
8th Jul 2025561 AMAQI
8th Jul 2025562 AMAQI
8th Jul 2025543 AMAQI
26°C23/30°C
8th Jul 2025564 AMAQI
8th Jul 2025585 AMAQI
8th Jul 2025586 AMAQI
8th Jul 2025587 AMAQI
8th Jul 2025588 AMAQI
8th Jul 2025899 AMAQI
8th Jul 202510110 AMAQI
8th Jul 202510311 AMAQI
8th Jul 20259512 PMAQI
8th Jul 2025821 PMAQI
8th Jul 2025812 PMAQI
8th Jul 2025803 PMAQI
8th Jul 2025774 PMAQI
8th Jul 2025775 PMAQI
8th Jul 2025746 PMAQI
8th Jul 2025727 PMAQI
8th Jul 2025688 PMAQI
8th Jul 2025629 PMAQI
8th Jul 20256110 PMAQI
8th Jul 20256211 PMAQI
9th Jul 20256212 AMAQI
9th Jul 2025581 AMAQI
9th Jul 2025592 AMAQI
9th Jul 2025583 AMAQI
26°C24/29°C
9th Jul 2025594 AMAQI
9th Jul 2025625 AMAQI
9th Jul 2025616 AMAQI
9th Jul 2025617 AMAQI
9th Jul 2025628 AMAQI
9th Jul 20251069 AMAQI
9th Jul 202512010 AMAQI
9th Jul 202511611 AMAQI
9th Jul 202510512 PMAQI
9th Jul 2025911 PMAQI
9th Jul 2025852 PMAQI
9th Jul 2025833 PMAQI
9th Jul 2025764 PMAQI
9th Jul 2025775 PMAQI
9th Jul 2025726 PMAQI
9th Jul 2025647 PMAQI
9th Jul 2025628 PMAQI
9th Jul 2025609 PMAQI
9th Jul 20256010 PMAQI
9th Jul 20255911 PMAQI
10th Jul 20256012 AMAQI
10th Jul 2025601 AMAQI
10th Jul 2025612 AMAQI
10th Jul 2025613 AMAQI
27°C24/30°C
10th Jul 2025624 AMAQI
10th Jul 2025635 AMAQI
10th Jul 2025636 AMAQI
10th Jul 2025637 AMAQI
10th Jul 2025628 AMAQI
10th Jul 2025499 AMAQI
10th Jul 20255110 AMAQI
10th Jul 20256011 AMAQI
10th Jul 20255712 PMAQI
10th Jul 2025581 PMAQI
10th Jul 2025572 PMAQI
10th Jul 2025543 PMAQI
10th Jul 2025524 PMAQI
10th Jul 2025505 PMAQI
10th Jul 2025476 PMAQI
10th Jul 2025447 PMAQI
10th Jul 2025468 PMAQI
10th Jul 2025579 PMAQI
10th Jul 20255610 PMAQI
10th Jul 20255711 PMAQI
11th Jul 20255812 AMAQI
11th Jul 2025591 AMAQI
11th Jul 2025602 AMAQI
11th Jul 2025603 AMAQI
23°C21/26°C
11th Jul 2025614 AMAQI
11th Jul 2025605 AMAQI
11th Jul 2025606 AMAQI
11th Jul 2025607 AMAQI
11th Jul 2025608 AMAQI
11th Jul 2025279 AMAQI
11th Jul 20251610 AMAQI
11th Jul 20251811 AMAQI
11th Jul 20251812 PMAQI
11th Jul 2025351 PMAQI
11th Jul 2025362 PMAQI
11th Jul 2025353 PMAQI
11th Jul 2025354 PMAQI
11th Jul 2025365 PMAQI
11th Jul 2025376 PMAQI
11th Jul 2025387 PMAQI
11th Jul 2025428 PMAQI
11th Jul 2025569 PMAQI
11th Jul 20255610 PMAQI
11th Jul 20255511 PMAQI
12th Jul 20255612 AMAQI
12th Jul 2025571 AMAQI
12th Jul 2025582 AMAQI
12th Jul 2025583 AMAQI
21°C19/23°C
12th Jul 2025584 AMAQI
12th Jul 2025565 AMAQI
12th Jul 2025566 AMAQI
12th Jul 2025567 AMAQI
12th Jul 2025568 AMAQI
12th Jul 2025379 AMAQI
12th Jul 20253110 AMAQI
12th Jul 20253311 AMAQI
12th Jul 20253412 PMAQI
12th Jul 2025411 PMAQI
12th Jul 2025412 PMAQI
12th Jul 2025443 PMAQI
12th Jul 2025464 PMAQI
12th Jul 2025465 PMAQI
12th Jul 2025466 PMAQI
12th Jul 2025447 PMAQI
12th Jul 2025448 PMAQI
12th Jul 2025549 PMAQI
12th Jul 20255410 PMAQI
12th Jul 20255311 PMAQI
13th Jul 20255412 AMAQI
13th Jul 2025551 AMAQI
13th Jul 2025562 AMAQI
13th Jul 2025563 AMAQI
20°C19/22°C
13th Jul 2025564 AMAQI
13th Jul 2025545 AMAQI
13th Jul 2025546 AMAQI
13th Jul 2025547 AMAQI
13th Jul 2025558 AMAQI
13th Jul 2025449 AMAQI
13th Jul 20253710 AMAQI
13th Jul 20254311 AMAQI
13th Jul 20254512 PMAQI
13th Jul 2025511 PMAQI
13th Jul 2025482 PMAQI
13th Jul 2025493 PMAQI
13th Jul 2025474 PMAQI
13th Jul 2025425 PMAQI
13th Jul 2025446 PMAQI
13th Jul 2025427 PMAQI
13th Jul 2025428 PMAQI
13th Jul 2025529 PMAQI
13th Jul 20255210 PMAQI
13th Jul 20255211 PMAQI
14th Jul 20255212 AMAQI
14th Jul 2025541 AMAQI
14th Jul 2025532 AMAQI
14th Jul 2025543 AMAQI
23°C19/27°C
14th Jul 2025544 AMAQI
14th Jul 2025525 AMAQI
14th Jul 2025526 AMAQI
14th Jul 2025527 AMAQI
14th Jul 2025538 AMAQI
14th Jul 2025269 AMAQI
14th Jul 20251810 AMAQI
14th Jul 20251711 AMAQI
14th Jul 20251812 PMAQI
14th Jul 2025291 PMAQI
14th Jul 2025292 PMAQI
14th Jul 2025353 PMAQI
14th Jul 2025354 PMAQI
14th Jul 2025355 PMAQI
14th Jul 2025326 PMAQI
14th Jul 2025337 PMAQI
14th Jul 2025368 PMAQI
14th Jul 2025489 PMAQI
14th Jul 20254810 PMAQI
14th Jul 20254911 PMAQI
15th Jul 20255012 AMAQI
15th Jul 2025511 AMAQI
15th Jul 2025522 AMAQI
15th Jul 2025523 AMAQI
24°C22/26°C
15th Jul 2025524 AMAQI
15th Jul 2025515 AMAQI
15th Jul 2025516 AMAQI
15th Jul 2025527 AMAQI
15th Jul 2025518 AMAQI
15th Jul 2025249 AMAQI
15th Jul 20251810 AMAQI
15th Jul 20251711 AMAQI
15th Jul 20251912 PMAQI
15th Jul 2025291 PMAQI
15th Jul 2025282 PMAQI
15th Jul 2025293 PMAQI
15th Jul 2025304 PMAQI
15th Jul 2025325 PMAQI
15th Jul 2025336 PMAQI
15th Jul 2025337 PMAQI
15th Jul 2025378 PMAQI
15th Jul 2025479 PMAQI
15th Jul 20254810 PMAQI
15th Jul 20254711 PMAQI
16th Jul 20254912 AMAQI
16th Jul 2025501 AMAQI
16th Jul 2025502 AMAQI
16th Jul 2025523 AMAQI
24°C24/25°C
16th Jul 2025514 AMAQI
16th Jul 2025485 AMAQI
16th Jul 2025506 AMAQI
16th Jul 2025507 AMAQI
16th Jul 2025508 AMAQI
16th Jul 2025489 AMAQI
16th Jul 20254910 AMAQI
16th Jul 20254511 AMAQI
16th Jul 20254112 PMAQI
16th Jul 2025341 PMAQI
16th Jul 2025322 PMAQI
16th Jul 2025283 PMAQI
16th Jul 2025304 PMAQI
16th Jul 2025325 PMAQI
16th Jul 2025326 PMAQI
16th Jul 2025337 PMAQI
16th Jul 2025348 PMAQI
16th Jul 2025469 PMAQI
16th Jul 20254510 PMAQI
16th Jul 20254611 PMAQI
17th Jul 20254712 AMAQI
17th Jul 2025481 AMAQI
17th Jul 2025492 AMAQI
17th Jul 2025493 AMAQI
24°C24/26°C
17th Jul 2025504 AMAQI
17th Jul 2025505 AMAQI
17th Jul 2025496 AMAQI
17th Jul 2025497 AMAQI
17th Jul 2025508 AMAQI
17th Jul 2025279 AMAQI
17th Jul 20252010 AMAQI
17th Jul 20252911 AMAQI
17th Jul 20253812 PMAQI
17th Jul 2025391 PMAQI
17th Jul 2025382 PMAQI
17th Jul 2025393 PMAQI
17th Jul 2025374 PMAQI
17th Jul 2025365 PMAQI
17th Jul 2025356 PMAQI
17th Jul 2025377 PMAQI
17th Jul 2025418 PMAQI
17th Jul 2025449 PMAQI
17th Jul 20254310 PMAQI
17th Jul 20254311 PMAQI
18th Jul 20254412 AMAQI
18th Jul 2025471 AMAQI
18th Jul 2025472 AMAQI
18th Jul 2025483 AMAQI
26°C23/29°C
18th Jul 2025464 AMAQI
18th Jul 2025455 AMAQI
18th Jul 2025456 AMAQI
18th Jul 2025457 AMAQI
18th Jul 2025448 AMAQI
18th Jul 2025379 AMAQI
18th Jul 20253510 AMAQI
18th Jul 20253411 AMAQI
18th Jul 20253412 PMAQI
18th Jul 2025371 PMAQI
18th Jul 2025372 PMAQI
18th Jul 2025363 PMAQI
18th Jul 2025344 PMAQI
18th Jul 2025325 PMAQI
18th Jul 2025326 PMAQI
18th Jul 2025337 PMAQI
18th Jul 2025368 PMAQI
18th Jul 2025429 PMAQI
18th Jul 20254210 PMAQI
18th Jul 20254311 PMAQI
19th Jul 20254312 AMAQI
19th Jul 2025441 AMAQI
19th Jul 2025462 AMAQI
19th Jul 2025463 AMAQI
25°C22/29°C
19th Jul 2025444 AMAQI
19th Jul 2025435 AMAQI
19th Jul 2025446 AMAQI
19th Jul 2025447 AMAQI
19th Jul 2025448 AMAQI
19th Jul 2025369 AMAQI
19th Jul 20253910 AMAQI
19th Jul 20253611 AMAQI
19th Jul 20253312 PMAQI
19th Jul 2025311 PMAQI
19th Jul 2025292 PMAQI
19th Jul 2025273 PMAQI
19th Jul 2025224 PMAQI
19th Jul 2025265 PMAQI
19th Jul 2025286 PMAQI
19th Jul 2025267 PMAQI
19th Jul 2025288 PMAQI
19th Jul 2025339 PMAQI
19th Jul 20253310 PMAQI
19th Jul 20253311 PMAQI
20th Jul 20253612 AMAQI
20th Jul 2025421 AMAQI
20th Jul 2025442 AMAQI
20th Jul 2025443 AMAQI
25°C22/29°C
20th Jul 2025444 AMAQI
20th Jul 2025425 AMAQI
20th Jul 2025426 AMAQI
20th Jul 2025427 AMAQI
20th Jul 2025428 AMAQI
20th Jul 2025359 AMAQI
20th Jul 20253310 AMAQI
20th Jul 20253611 AMAQI
20th Jul 20253712 PMAQI
20th Jul 2025421 PMAQI
20th Jul 2025422 PMAQI
20th Jul 2025403 PMAQI
20th Jul 2025384 PMAQI
20th Jul 2025385 PMAQI
20th Jul 2025336 PMAQI
20th Jul 2025307 PMAQI
20th Jul 2025328 PMAQI
20th Jul 2025349 PMAQI
20th Jul 20253410 PMAQI
20th Jul 20253511 PMAQI
21st Jul 20253612 AMAQI
21st Jul 2025401 AMAQI
21st Jul 2025422 AMAQI
21st Jul 2025423 AMAQI
26°C23/29°C
21st Jul 2025424 AMAQI
21st Jul 2025405 AMAQI
21st Jul 2025416 AMAQI
21st Jul 2025417 AMAQI
21st Jul 2025408 AMAQI
21st Jul 2025399 AMAQI
21st Jul 20253110 AMAQI
21st Jul 20254811 AMAQI
21st Jul 20255212 PMAQI
21st Jul 2025511 PMAQI
21st Jul 2025502 PMAQI
21st Jul 2025523 PMAQI
21st Jul 2025544 PMAQI
21st Jul 2025545 PMAQI
21st Jul 2025506 PMAQI
21st Jul 2025447 PMAQI
21st Jul 2025438 PMAQI
21st Jul 2025429 PMAQI
21st Jul 20254310 PMAQI
21st Jul 20254111 PMAQI
22nd Jul 20254012 AMAQI
22nd Jul 2025391 AMAQI
22nd Jul 2025402 AMAQI
22nd Jul 2025403 AMAQI
26°C23/30°C
22nd Jul 2025404 AMAQI
22nd Jul 2025425 AMAQI
22nd Jul 2025416 AMAQI
22nd Jul 2025427 AMAQI
22nd Jul 2025428 AMAQI
22nd Jul 2025399 AMAQI
22nd Jul 20254310 AMAQI
22nd Jul 20255211 AMAQI
22nd Jul 20255312 PMAQI
22nd Jul 2025541 PMAQI
22nd Jul 2025532 PMAQI
22nd Jul 2025543 PMAQI
22nd Jul 2025504 PMAQI
22nd Jul 2025515 PMAQI
22nd Jul 2025426 PMAQI
22nd Jul 2025327 PMAQI
22nd Jul 2025318 PMAQI
22nd Jul 2025349 PMAQI
22nd Jul 20253410 PMAQI
22nd Jul 20253611 PMAQI
23rd Jul 20253612 AMAQI
23rd Jul 2025401 AMAQI
23rd Jul 2025402 AMAQI
23rd Jul 2025403 AMAQI
27°C24/31°C
23rd Jul 2025404 AMAQI
23rd Jul 2025425 AMAQI
23rd Jul 2025426 AMAQI
23rd Jul 2025427 AMAQI
23rd Jul 2025428 AMAQI
23rd Jul 2025419 AMAQI
23rd Jul 20254410 AMAQI
23rd Jul 20255211 AMAQI
23rd Jul 20255312 PMAQI
23rd Jul 2025541 PMAQI
23rd Jul 2025562 PMAQI
23rd Jul 2025563 PMAQI
23rd Jul 2025564 PMAQI
23rd Jul 2025545 PMAQI
23rd Jul 2025516 PMAQI
23rd Jul 2025497 PMAQI
23rd Jul 2025498 PMAQI
23rd Jul 2025449 PMAQI
23rd Jul 20254310 PMAQI
23rd Jul 20254411 PMAQI
24th Jul 20254112 AMAQI
24th Jul 2025421 AMAQI
24th Jul 2025422 AMAQI
24th Jul 2025403 AMAQI
27°C24/31°C
24th Jul 2025424 AMAQI
24th Jul 2025445 AMAQI
24th Jul 2025436 AMAQI
24th Jul 2025437 AMAQI
24th Jul 2025438 AMAQI
24th Jul 2025399 AMAQI
24th Jul 20254410 AMAQI
24th Jul 20255211 AMAQI
24th Jul 20255912 PMAQI
24th Jul 2025581 PMAQI
24th Jul 2025602 PMAQI
24th Jul 2025563 PMAQI
24th Jul 2025544 PMAQI
24th Jul 2025545 PMAQI
24th Jul 2025546 PMAQI
24th Jul 2025537 PMAQI
24th Jul 2025528 PMAQI
24th Jul 2025489 PMAQI
24th Jul 20255010 PMAQI
24th Jul 20254911 PMAQI
25th Jul 20254512 AMAQI
25th Jul 2025431 AMAQI
25th Jul 2025432 AMAQI
25th Jul 2025443 AMAQI
27°C24/31°C
25th Jul 2025444 AMAQI
25th Jul 2025475 AMAQI
25th Jul 2025466 AMAQI
25th Jul 2025467 AMAQI
25th Jul 2025468 AMAQI
25th Jul 2025489 AMAQI
25th Jul 20255610 AMAQI
25th Jul 20256011 AMAQI
25th Jul 20256012 PMAQI
25th Jul 2025611 PMAQI
25th Jul 2025582 PMAQI
25th Jul 2025563 PMAQI
25th Jul 2025574 PMAQI
25th Jul 2025565 PMAQI
25th Jul 2025536 PMAQI
25th Jul 2025507 PMAQI
25th Jul 2025478 PMAQI
25th Jul 2025489 PMAQI
25th Jul 20254810 PMAQI
25th Jul 20254611 PMAQI
26th Jul 20254412 AMAQI
26th Jul 2025441 AMAQI
26th Jul 2025462 AMAQI
26th Jul 2025463 AMAQI
27°C24/31°C
26th Jul 2025474 AMAQI
26th Jul 2025485 AMAQI
26th Jul 2025486 AMAQI
26th Jul 2025497 AMAQI
26th Jul 2025488 AMAQI
26th Jul 2025449 AMAQI
26th Jul 20254610 AMAQI
26th Jul 20256311 AMAQI
26th Jul 20255612 PMAQI
26th Jul 2025531 PMAQI
26th Jul 2025552 PMAQI
26th Jul 2025563 PMAQI
26th Jul 2025564 PMAQI
26th Jul 2025565 PMAQI
26th Jul 2025576 PMAQI
26th Jul 2025537 PMAQI
26th Jul 2025488 PMAQI
26th Jul 2025409 PMAQI
26th Jul 20253910 PMAQI
26th Jul 20253811 PMAQI
27th Jul 20254112 AMAQI
27th Jul 2025461 AMAQI
27th Jul 2025482 AMAQI
27th Jul 2025493 AMAQI
27°C24/31°C
27th Jul 2025484 AMAQI
27th Jul 2025495 AMAQI
27th Jul 2025496 AMAQI
27th Jul 2025497 AMAQI
27th Jul 2025498 AMAQI
27th Jul 2025429 AMAQI
27th Jul 20253810 AMAQI
27th Jul 20254011 AMAQI
27th Jul 20254212 PMAQI
27th Jul 2025451 PMAQI
27th Jul 2025462 PMAQI
27th Jul 2025503 PMAQI
27th Jul 2025524 PMAQI
27th Jul 2025495 PMAQI
27th Jul 2025506 PMAQI
27th Jul 2025447 PMAQI
27th Jul 2025448 PMAQI
27th Jul 2025429 PMAQI
27th Jul 20253910 PMAQI
27th Jul 20253911 PMAQI
28th Jul 20254012 AMAQI
28th Jul 2025451 AMAQI
28th Jul 2025482 AMAQI
28th Jul 2025483 AMAQI
27°C24/32°C
28th Jul 2025484 AMAQI
28th Jul 2025465 AMAQI
28th Jul 2025466 AMAQI
28th Jul 2025477 AMAQI
28th Jul 2025468 AMAQI
28th Jul 2025399 AMAQI
28th Jul 20254210 AMAQI
28th Jul 20254811 AMAQI
28th Jul 20255012 PMAQI
28th Jul 2025511 PMAQI
28th Jul 2025482 PMAQI
28th Jul 2025443 PMAQI
28th Jul 2025464 PMAQI
28th Jul 2025485 PMAQI
28th Jul 2025436 PMAQI
28th Jul 2025467 PMAQI
28th Jul 2025468 PMAQI
28th Jul 2025469 PMAQI
28th Jul 20254410 PMAQI
28th Jul 20254411 PMAQI
29th Jul 20254412 AMAQI
29th Jul 2025461 AMAQI
29th Jul 2025472 AMAQI
29th Jul 2025443 AMAQI
27°C24/31°C
29th Jul 2025454 AMAQI
29th Jul 2025465 AMAQI
29th Jul 2025456 AMAQI
29th Jul 2025457 AMAQI
29th Jul 2025468 AMAQI
29th Jul 2025459 AMAQI
29th Jul 20254710 AMAQI
29th Jul 20255211 AMAQI
29th Jul 20255012 PMAQI
29th Jul 2025551 PMAQI
29th Jul 2025502 PMAQI
29th Jul 2025433 PMAQI
29th Jul 2025304 PMAQI
29th Jul 2025275 PMAQI
29th Jul 2025256 PMAQI
29th Jul 2025207 PMAQI
29th Jul 2025228 PMAQI
29th Jul 2025319 PMAQI
29th Jul 20253110 PMAQI
29th Jul 20253111 PMAQI
30th Jul 20253412 AMAQI
30th Jul 2025431 AMAQI
30th Jul 2025452 AMAQI
30th Jul 2025463 AMAQI
26°C23/31°C
30th Jul 2025474 AMAQI
30th Jul 2025485 AMAQI
30th Jul 2025476 AMAQI
30th Jul 2025477 AMAQI
30th Jul 2025478 AMAQI
30th Jul 2025279 AMAQI
30th Jul 20252410 AMAQI
30th Jul 20253211 AMAQI
30th Jul 20253312 PMAQI
30th Jul 2025251 PMAQI
30th Jul 2025322 PMAQI
30th Jul 2025323 PMAQI
30th Jul 2025344 PMAQI
30th Jul 2025345 PMAQI
30th Jul 2025386 PMAQI
30th Jul 2025377 PMAQI
30th Jul 2025388 PMAQI
30th Jul 2025429 PMAQI
30th Jul 20254210 PMAQI
30th Jul 20254211 PMAQI
31st Jul 20254312 AMAQI
31st Jul 2025441 AMAQI
31st Jul 2025452 AMAQI
31st Jul 2025453 AMAQI
25°C22/28°C
31st Jul 2025434 AMAQI
31st Jul 2025435 AMAQI
31st Jul 2025436 AMAQI
31st Jul 2025437 AMAQI
31st Jul 2025438 AMAQI
31st Jul 2025439 AMAQI
31st Jul 20254310 AMAQI
31st Jul 20254011 AMAQI
31st Jul 20253312 PMAQI
31st Jul 2025341 PMAQI
31st Jul 2025302 PMAQI
31st Jul 2025303 PMAQI
31st Jul 2025284 PMAQI
31st Jul 2025285 PMAQI
31st Jul 2025276 PMAQI
31st Jul 2025287 PMAQI
31st Jul 2025298 PMAQI
31st Jul 2025309 PMAQI
31st Jul 20253010 PMAQI
31st Jul 20252711 PMAQI
1st Aug 20253012 AMAQI
1st Aug 2025361 AMAQI
1st Aug 2025382 AMAQI
1st Aug 2025403 AMAQI
24°C22/27°C
1st Aug 2025404 AMAQI
1st Aug 2025385 AMAQI
1st Aug 2025396 AMAQI
1st Aug 2025407 AMAQI
1st Aug 2025378 AMAQI
1st Aug 2025369 AMAQI
1st Aug 20253010 AMAQI
1st Aug 20254311 AMAQI
1st Aug 20255112 PMAQI
1st Aug 2025441 PMAQI
1st Aug 2025352 PMAQI
1st Aug 2025303 PMAQI
1st Aug 2025444 PMAQI
1st Aug 2025415 PMAQI
1st Aug 2025396 PMAQI
1st Aug 2025287 PMAQI
1st Aug 2025288 PMAQI
1st Aug 2025309 PMAQI
1st Aug 20253310 PMAQI
1st Aug 20253011 PMAQI
2nd Aug 20252812 AMAQI
2nd Aug 2025341 AMAQI
2nd Aug 2025392 AMAQI
2nd Aug 2025403 AMAQI
25°C22/27°C
2nd Aug 2025394 AMAQI
2nd Aug 2025405 AMAQI
2nd Aug 2025416 AMAQI
2nd Aug 2025387 AMAQI
2nd Aug 2025408 AMAQI
2nd Aug 2025409 AMAQI
2nd Aug 20253810 AMAQI
2nd Aug 20253311 AMAQI
2nd Aug 20252912 PMAQI
2nd Aug 2025401 PMAQI
2nd Aug 2025482 PMAQI
2nd Aug 2025513 PMAQI
2nd Aug 2025454 PMAQI
2nd Aug 2025495 PMAQI
2nd Aug 2025536 PMAQI
2nd Aug 2025547 PMAQI
2nd Aug 2025408 PMAQI
2nd Aug 2025379 PMAQI
2nd Aug 20253510 PMAQI
2nd Aug 20253711 PMAQI
3rd Aug 20253112 AMAQI
3rd Aug 2025351 AMAQI
3rd Aug 2025372 AMAQI
3rd Aug 2025373 AMAQI
27°C24/33°C
3rd Aug 2025384 AMAQI
3rd Aug 2025385 AMAQI
3rd Aug 2025376 AMAQI
3rd Aug 2025387 AMAQI
3rd Aug 2025388 AMAQI
3rd Aug 2025429 AMAQI
3rd Aug 20254810 AMAQI
3rd Aug 20254611 AMAQI
3rd Aug 20255712 PMAQI
3rd Aug 2025481 PMAQI
3rd Aug 2025562 PMAQI
3rd Aug 2025473 PMAQI
3rd Aug 2025444 PMAQI
3rd Aug 2025475 PMAQI
3rd Aug 2025546 PMAQI
3rd Aug 2025547 PMAQI
3rd Aug 2025448 PMAQI
3rd Aug 2025359 PMAQI
3rd Aug 20253610 PMAQI
3rd Aug 20253511 PMAQI
4th Aug 20253212 AMAQI
4th Aug 2025371 AMAQI
4th Aug 2025382 AMAQI
4th Aug 2025393 AMAQI
26°C24/29°C
4th Aug 2025404 AMAQI
4th Aug 2025425 AMAQI
4th Aug 2025426 AMAQI
4th Aug 2025407 AMAQI
4th Aug 2025428 AMAQI
4th Aug 2025479 AMAQI
4th Aug 20255610 AMAQI
4th Aug 20256411 AMAQI
4th Aug 20256812 PMAQI
4th Aug 2025641 PMAQI
4th Aug 2025732 PMAQI
4th Aug 2025643 PMAQI
4th Aug 2025754 PMAQI
4th Aug 2025765 PMAQI
4th Aug 2025686 PMAQI
4th Aug 2025647 PMAQI
4th Aug 2025628 PMAQI
4th Aug 2025579 PMAQI
4th Aug 20255410 PMAQI
4th Aug 20254811 PMAQI
5th Aug 20254712 AMAQI
5th Aug 2025421 AMAQI
5th Aug 2025402 AMAQI
5th Aug 2025393 AMAQI
27°C24/31°C
5th Aug 2025454 AMAQI
4 AM5th Aug 2025485 AMAQI
5th Aug 2025446 AMAQI
5th Aug 2025437 AMAQI
5th Aug 2025488 AMAQI
5th Aug 2025529 AMAQI
5th Aug 20254910 AMAQI
11 AM
6 PM
11 PM
3 AM
--°C/°C
Day time
Avg. Highest Time
11 AM - 6 PM
48AQI
8 hours / Day
240 hours / Month
Avg. Lowest Time
9 AM - 10 AM
46AQI
2 hours / Day
60 hours / Month
In the last 30 days, during the daytime, the highest AQI was between 11 AM to 6 PM (Avg. 48), while the lowest AQI was between 9 AM to 10 AM (Avg. 46).
Night time
Avg. Highest Time
12 AM - 3 AM
46AQI
4 hours / Day
120 hours / Month
Avg. Lowest Time
7 PM - 11 PM
45AQI
5 hours / Day
150 hours / Month
In the last 30 days, during the daytime, the highest AQI was between 12 AM to 3 AM (Avg. 46), while the lowest AQI was between 7 PM to 11 PM (Avg. 45).
2025 Days Vs Air Quality
Hitachiomiya, Ibaraki, Japan
2025
91%
195
9%
20
Total number of days with different AQI categories in last 217 days in 2025 (148 days remaining)
Good
195 DaysModerate
20 DaysPoor
0 DaysUnhealthy
0 DaysSevere
0 DaysHazardous
0 DaysUnder WHO’s Safe Air Quality Limits: 91%
Health Risk Level:
Very Low
In 2025, 91% of 217 days were within WHO’s safe air quality limits. The risk of health issues is Very Low, but health impacts are still unclear.
Annual Air Quality Insights
Hitachiomiya, Ibaraki, Japan
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
29AQI
29AQI
2nd January 2025
29AQI
29AQI
3rd January 2025
25AQI
25AQI
4th January 2025
27AQI
27AQI
5th January 2025
32AQI
32AQI
6th January 2025
49AQI
49AQI
7th January 2025
29AQI
29AQI
8th January 2025
35AQI
35AQI
9th January 2025
27AQI
27AQI
10th January 2025
29AQI
29AQI
11th January 2025
26AQI
26AQI
12th January 2025
29AQI
29AQI
13th January 2025
28AQI
28AQI
14th January 2025
30AQI
30AQI
15th January 2025
30AQI
30AQI
16th January 2025
28AQI
28AQI
17th January 2025
28AQI
28AQI
18th January 2025
29AQI
29AQI
19th January 2025
44AQI
44AQI
20th January 2025
34AQI
34AQI
21st January 2025
43AQI
43AQI
22nd January 2025
34AQI
34AQI
23rd January 2025
39AQI
39AQI
24th January 2025
34AQI
34AQI
25th January 2025
33AQI
33AQI
26th January 2025
31AQI
31AQI
27th January 2025
32AQI
32AQI
28th January 2025
33AQI
33AQI
29th January 2025
30AQI
30AQI
30th January 2025
30AQI
30AQI
31st January 2025
29AQI
29AQI
1st February 2025
30AQI
30AQI
2nd February 2025
29AQI
29AQI
3rd February 2025
31AQI
31AQI
4th February 2025
30AQI
30AQI
5th February 2025
32AQI
32AQI
6th February 2025
30AQI
30AQI
7th February 2025
33AQI
33AQI
8th February 2025
31AQI
31AQI
9th February 2025
30AQI
30AQI
10th February 2025
30AQI
30AQI
11th February 2025
31AQI
31AQI
12th February 2025
37AQI
37AQI
13th February 2025
32AQI
32AQI
14th February 2025
32AQI
32AQI
15th February 2025
31AQI
31AQI
16th February 2025
34AQI
34AQI
17th February 2025
35AQI
35AQI
18th February 2025
31AQI
31AQI
19th February 2025
32AQI
32AQI
20th February 2025
30AQI
30AQI
21st February 2025
32AQI
32AQI
22nd February 2025
32AQI
32AQI
23rd February 2025
32AQI
32AQI
24th February 2025
33AQI
33AQI
25th February 2025
36AQI
36AQI
26th February 2025
38AQI
38AQI
27th February 2025
41AQI
41AQI
28th February 2025
48AQI
48AQI
1st March 2025
45AQI
45AQI
2nd March 2025
53AQI
53AQI
3rd March 2025
36AQI
36AQI
4th March 2025
37AQI
37AQI
5th March 2025
27AQI
27AQI
6th March 2025
32AQI
32AQI
7th March 2025
33AQI
33AQI
8th March 2025
34AQI
34AQI
9th March 2025
33AQI
33AQI
10th March 2025
38AQI
38AQI
11th March 2025
40AQI
40AQI
12th March 2025
42AQI
42AQI
13th March 2025
44AQI
44AQI
14th March 2025
37AQI
37AQI
15th March 2025
36AQI
36AQI
16th March 2025
23AQI
23AQI
17th March 2025
20AQI
20AQI
18th March 2025
24AQI
24AQI
19th March 2025
18AQI
18AQI
20th March 2025
25AQI
25AQI
21st March 2025
34AQI
34AQI
22nd March 2025
47AQI
47AQI
23rd March 2025
48AQI
48AQI
24th March 2025
49AQI
49AQI
25th March 2025
64AQI
64AQI
26th March 2025
63AQI
63AQI
27th March 2025
69AQI
69AQI
28th March 2025
46AQI
46AQI
29th March 2025
39AQI
39AQI
30th March 2025
35AQI
35AQI
31st March 2025
33AQI
33AQI
1st April 2025
26AQI
26AQI
2nd April 2025
22AQI
22AQI
3rd April 2025
21AQI
21AQI
4th April 2025
19AQI
19AQI
5th April 2025
26AQI
26AQI
6th April 2025
26AQI
26AQI
7th April 2025
33AQI
33AQI
8th April 2025
37AQI
37AQI
9th April 2025
28AQI
28AQI
10th April 2025
46AQI
46AQI
11th April 2025
41AQI
41AQI
12th April 2025
37AQI
37AQI
13th April 2025
28AQI
28AQI
14th April 2025
29AQI
29AQI
15th April 2025
27AQI
27AQI
16th April 2025
24AQI
24AQI
17th April 2025
42AQI
42AQI
18th April 2025
51AQI
51AQI
19th April 2025
63AQI
63AQI
20th April 2025
57AQI
57AQI
21st April 2025
45AQI
45AQI
22nd April 2025
51AQI
51AQI
23rd April 2025
28AQI
28AQI
24th April 2025
39AQI
39AQI
25th April 2025
37AQI
37AQI
26th April 2025
48AQI
48AQI
27th April 2025
47AQI
47AQI
28th April 2025
52AQI
52AQI
29th April 2025
33AQI
33AQI
30th April 2025
43AQI
43AQI
1st May 2025
37AQI
37AQI
2nd May 2025
29AQI
29AQI
3rd May 2025
34AQI
34AQI
4th May 2025
33AQI
33AQI
5th May 2025
35AQI
35AQI
6th May 2025
29AQI
29AQI
7th May 2025
27AQI
27AQI
8th May 2025
29AQI
29AQI
9th May 2025
32AQI
32AQI
10th May 2025
20AQI
20AQI
11th May 2025
22AQI
22AQI
12th May 2025
19AQI
19AQI
13th May 2025
36AQI
36AQI
14th May 2025
34AQI
34AQI
15th May 2025
41AQI
41AQI
16th May 2025
46AQI
46AQI
17th May 2025
27AQI
27AQI
18th May 2025
42AQI
42AQI
19th May 2025
36AQI
36AQI
20th May 2025
61AQI
61AQI
21st May 2025
56AQI
56AQI
22nd May 2025
52AQI
52AQI
23rd May 2025
46AQI
46AQI
24th May 2025
40AQI
40AQI
25th May 2025
28AQI
28AQI
26th May 2025
29AQI
29AQI
27th May 2025
25AQI
25AQI
28th May 2025
25AQI
25AQI
29th May 2025
28AQI
28AQI
30th May 2025
22AQI
22AQI
31st May 2025
17AQI
17AQI
1st June 2025
20AQI
20AQI
2nd June 2025
31AQI
31AQI
3rd June 2025
34AQI
34AQI
4th June 2025
26AQI
26AQI
5th June 2025
41AQI
41AQI
6th June 2025
46AQI
46AQI
7th June 2025
53AQI
53AQI
8th June 2025
61AQI
61AQI
9th June 2025
52AQI
52AQI
10th June 2025
41AQI
41AQI
11th June 2025
32AQI
32AQI
12th June 2025
39AQI
39AQI
13th June 2025
35AQI
35AQI
14th June 2025
36AQI
36AQI
15th June 2025
28AQI
28AQI
16th June 2025
29AQI
29AQI
17th June 2025
36AQI
36AQI
18th June 2025
36AQI
36AQI
19th June 2025
38AQI
38AQI
20th June 2025
36AQI
36AQI
21st June 2025
35AQI
35AQI
22nd June 2025
31AQI
31AQI
23rd June 2025
31AQI
31AQI
24th June 2025
31AQI
31AQI
25th June 2025
29AQI
29AQI
26th June 2025
27AQI
27AQI
27th June 2025
32AQI
32AQI
28th June 2025
32AQI
32AQI
29th June 2025
37AQI
37AQI
30th June 2025
41AQI
41AQI
1st July 2025
40AQI
40AQI
2nd July 2025
42AQI
42AQI
3rd July 2025
46AQI
46AQI
4th July 2025
44AQI
44AQI
5th July 2025
49AQI
49AQI
6th July 2025
55AQI
55AQI
7th July 2025
67AQI
67AQI
8th July 2025
68AQI
68AQI
9th July 2025
70AQI
70AQI
10th July 2025
57AQI
57AQI
11th July 2025
48AQI
48AQI
12th July 2025
50AQI
50AQI
13th July 2025
50AQI
50AQI
14th July 2025
43AQI
43AQI
15th July 2025
41AQI
41AQI
16th July 2025
44AQI
44AQI
17th July 2025
42AQI
42AQI
18th July 2025
41AQI
41AQI
19th July 2025
36AQI
36AQI
20th July 2025
38AQI
38AQI
21st July 2025
44AQI
44AQI
22nd July 2025
42AQI
42AQI
23rd July 2025
46AQI
46AQI
24th July 2025
48AQI
48AQI
25th July 2025
50AQI
50AQI
26th July 2025
49AQI
49AQI
27th July 2025
45AQI
45AQI
28th July 2025
46AQI
46AQI
29th July 2025
39AQI
39AQI
30th July 2025
39AQI
39AQI
31st July 2025
36AQI
36AQI
1st August 2025
36AQI
36AQI
2nd August 2025
40AQI
40AQI
3rd August 2025
41AQI
41AQI
32AQI
33AQI
39AQI
37AQI
33AQI
36AQI
47AQI
39AQI
No. of days
Jan.Feb.Mar.Apr.MayJun.Jul.Aug.Sep.Oct.Nov.Dec.Total Days
202537AQI
31
28
27
4
25
5
28
3
27
3
26
5
3
195
20
Highest AQI recorded in
July47AQI
Lowest AQI recorded in
January32AQI
202433AQI
31
29
27
4
24
6
29
2
28
2
21
10
31
27
3
31
29
1
31
338
28
Highest AQI recorded in
April44AQI
Lowest AQI recorded in
August26AQI
202337AQI
30
1
26
2
26
5
23
7
24
7
25
5
26
4
29
2
28
2
31
24
5
30
1
322
41
Highest AQI recorded in
April45AQI
Lowest AQI recorded in
January31AQI
202235AQI
30
21
29
2
24
6
27
4
20
10
18
5
1
28
30
1
30
31
289
28
Highest AQI recorded in
June41AQI
Lowest AQI recorded in
December27AQI
202132AQI
31
26
2
26
3
28
2
29
2
26
4
31
30
1
30
30
1
30
31
348
15
Highest AQI recorded in
June38AQI
Lowest AQI recorded in
January25AQI
202031AQI
11
21
18
24
6
31
23
8
19
29
2
28
2
10
1
214
19
Highest AQI recorded in
August42AQI
Lowest AQI recorded in
September25AQI
Most & Least Polluted Years Over the Last 6 Years
Most Polluted Year Recorded
2023(Avg.)
37AQILeast Polluted Year Recorded
2020(Avg.)
31AQIHitachiomiya's annual 2025 AQI (37) shows an average percentage change of 9.7% (worsened AQI) compared to previous years: 2020 (31), 2021 (32), 2022 (35), 2023 (37), 2024 (33).
