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+
September Air Quality Analysis
Hitachiomiya, Ibaraki, Japan
2021
2022
2023
2024
2025
AQI
.
Days
AQI Trends: Highest and Lowest
Highest AQI recorded on
7th Sep 2024
60AQILowest AQI recorded on
22nd Sep 2024
13AQISame Day Analysis (18th September ):
On this day, AQI across the 5 years varied significantly: 2025 ranks 2nd highest AQI at 42 of Good air quality, showing improvement over 2024 on the same day.
Download 2024 Annual Data
World Air Quality Report
Day & Night AQI Trend: 18th Sep - 19th Sep 2025
Hitachiomiya, Ibaraki, Japan
AQI
Day
Night
.
5 AM18th Sep 2025
6 PM
4 AM19th Sep 2025
Day time
Avg. Highest Time
2PM18th Sep
66AQI
Avg. Lowest Time
4PM18th Sep
28AQI
Night time
Avg. Highest Time
2AM19th Sep
38AQI
Avg. Lowest Time
7PM18th Sep
15AQI
In the last 24 hours,
Hitachiomiya's AQI reached its highest point of 66 at 2 PM during the Day, while the lowest point, 15, was recorded at 7 PM during the Night between 18th Sep and 19th Sep 2025.
Day & Night AQI Trend : Aug - Sep 2025
Hitachiomiya, Ibaraki, Japan
AugSep
20th - 21st21st - 22nd22nd - 23rd23rd - 24th24th - 25th25th - 26th26th - 27th27th - 28th28th - 29th29th - 30th30th - 31st31st - 01st01st - 02nd02nd - 03rd03rd - 04th04th - 05th05th - 06th06th - 07th07th - 08th08th - 09th09th - 10th10th - 11th11th - 12th12th - 13th13th - 14th14th - 15th15th - 16th16th - 17th17th - 18th18th - 19th19th
Day
Night
20th Aug 2025415 AMAQI
20th Aug 2025426 AMAQI
20th Aug 2025407 AMAQI
20th Aug 2025428 AMAQI
20th Aug 2025499 AMAQI
20th Aug 20254810 AMAQI
20th Aug 20255311 AMAQI
20th Aug 20255112 PMAQI
20th Aug 2025541 PMAQI
20th Aug 2025562 PMAQI
20th Aug 2025543 PMAQI
20th Aug 2025584 PMAQI
20th Aug 2025505 PMAQI
20th Aug 2025556 PMAQI
20th Aug 2025537 PMAQI
20th Aug 2025538 PMAQI
20th Aug 2025489 PMAQI
20th Aug 20254510 PMAQI
20th Aug 20254711 PMAQI
21st Aug 20254212 AMAQI
21st Aug 2025401 AMAQI
21st Aug 2025412 AMAQI
21st Aug 2025423 AMAQI
21st Aug 2025434 AMAQI
27°C24/32°C
21st Aug 2025435 AMAQI
21st Aug 2025446 AMAQI
21st Aug 2025447 AMAQI
21st Aug 2025468 AMAQI
21st Aug 2025569 AMAQI
21st Aug 20254610 AMAQI
21st Aug 20255111 AMAQI
21st Aug 20254912 PMAQI
21st Aug 2025511 PMAQI
21st Aug 2025532 PMAQI
21st Aug 2025523 PMAQI
21st Aug 2025424 PMAQI
21st Aug 2025365 PMAQI
21st Aug 2025426 PMAQI
21st Aug 2025507 PMAQI
21st Aug 2025478 PMAQI
21st Aug 2025499 PMAQI
21st Aug 20254410 PMAQI
21st Aug 20254511 PMAQI
22nd Aug 20254312 AMAQI
22nd Aug 2025401 AMAQI
22nd Aug 2025442 AMAQI
22nd Aug 2025443 AMAQI
22nd Aug 2025474 AMAQI
27°C24/31°C
22nd Aug 2025475 AMAQI
22nd Aug 2025466 AMAQI
22nd Aug 2025477 AMAQI
22nd Aug 2025458 AMAQI
22nd Aug 2025549 AMAQI
22nd Aug 20255210 AMAQI
22nd Aug 20254811 AMAQI
22nd Aug 20255212 PMAQI
22nd Aug 2025521 PMAQI
22nd Aug 2025502 PMAQI
22nd Aug 2025503 PMAQI
22nd Aug 2025534 PMAQI
22nd Aug 2025465 PMAQI
22nd Aug 2025466 PMAQI
22nd Aug 2025527 PMAQI
22nd Aug 2025488 PMAQI
22nd Aug 2025419 PMAQI
22nd Aug 20253710 PMAQI
22nd Aug 20253511 PMAQI
23rd Aug 20254112 AMAQI
23rd Aug 2025431 AMAQI
23rd Aug 2025452 AMAQI
23rd Aug 2025443 AMAQI
23rd Aug 2025474 AMAQI
26°C24/29°C
23rd Aug 2025495 AMAQI
23rd Aug 2025486 AMAQI
23rd Aug 2025487 AMAQI
23rd Aug 2025488 AMAQI
23rd Aug 2025419 AMAQI
23rd Aug 20255410 AMAQI
23rd Aug 20254411 AMAQI
23rd Aug 20254612 PMAQI
23rd Aug 2025491 PMAQI
23rd Aug 2025422 PMAQI
23rd Aug 2025383 PMAQI
23rd Aug 2025494 PMAQI
23rd Aug 2025555 PMAQI
23rd Aug 2025566 PMAQI
23rd Aug 2025557 PMAQI
23rd Aug 2025488 PMAQI
23rd Aug 2025499 PMAQI
23rd Aug 20255010 PMAQI
23rd Aug 20255011 PMAQI
24th Aug 20255212 AMAQI
24th Aug 2025481 AMAQI
24th Aug 2025462 AMAQI
24th Aug 2025463 AMAQI
24th Aug 2025464 AMAQI
28°C24/32°C
24th Aug 2025465 AMAQI
24th Aug 2025466 AMAQI
24th Aug 2025477 AMAQI
24th Aug 2025468 AMAQI
24th Aug 2025529 AMAQI
24th Aug 20255610 AMAQI
24th Aug 20255811 AMAQI
24th Aug 20255312 PMAQI
24th Aug 2025591 PMAQI
24th Aug 2025582 PMAQI
24th Aug 2025573 PMAQI
24th Aug 2025624 PMAQI
24th Aug 2025645 PMAQI
24th Aug 2025616 PMAQI
24th Aug 2025607 PMAQI
24th Aug 2025568 PMAQI
24th Aug 2025439 PMAQI
24th Aug 20254610 PMAQI
24th Aug 20254611 PMAQI
25th Aug 20254312 AMAQI
25th Aug 2025451 AMAQI
25th Aug 2025462 AMAQI
25th Aug 2025463 AMAQI
25th Aug 2025504 AMAQI
28°C25/32°C
25th Aug 2025505 AMAQI
25th Aug 2025516 AMAQI
25th Aug 2025517 AMAQI
25th Aug 2025528 AMAQI
25th Aug 2025549 AMAQI
25th Aug 20255410 AMAQI
25th Aug 20255911 AMAQI
25th Aug 20255612 PMAQI
25th Aug 2025581 PMAQI
25th Aug 2025572 PMAQI
25th Aug 2025603 PMAQI
25th Aug 2025604 PMAQI
25th Aug 2025565 PMAQI
25th Aug 2025586 PMAQI
25th Aug 2025567 PMAQI
25th Aug 2025528 PMAQI
25th Aug 2025489 PMAQI
25th Aug 20253810 PMAQI
25th Aug 20254011 PMAQI
26th Aug 20253912 AMAQI
26th Aug 2025501 AMAQI
26th Aug 2025502 AMAQI
26th Aug 2025503 AMAQI
26th Aug 2025514 AMAQI
26°C24/29°C
26th Aug 2025525 AMAQI
26th Aug 2025526 AMAQI
26th Aug 2025527 AMAQI
26th Aug 2025508 AMAQI
26th Aug 2025429 AMAQI
26th Aug 20255510 AMAQI
26th Aug 20256311 AMAQI
26th Aug 20256212 PMAQI
26th Aug 2025621 PMAQI
26th Aug 2025542 PMAQI
26th Aug 2025563 PMAQI
26th Aug 2025504 PMAQI
26th Aug 2025585 PMAQI
26th Aug 2025606 PMAQI
26th Aug 2025597 PMAQI
26th Aug 2025568 PMAQI
26th Aug 2025539 PMAQI
26th Aug 20255010 PMAQI
26th Aug 20254711 PMAQI
27th Aug 20255112 AMAQI
27th Aug 2025501 AMAQI
27th Aug 2025502 AMAQI
27th Aug 2025513 AMAQI
27th Aug 2025524 AMAQI
27°C25/31°C
27th Aug 2025545 AMAQI
27th Aug 2025536 AMAQI
27th Aug 2025547 AMAQI
27th Aug 2025538 AMAQI
27th Aug 2025389 AMAQI
27th Aug 20254310 AMAQI
27th Aug 20254611 AMAQI
27th Aug 20255012 PMAQI
27th Aug 2025351 PMAQI
27th Aug 2025372 PMAQI
27th Aug 2025353 PMAQI
27th Aug 2025494 PMAQI
27th Aug 2025405 PMAQI
27th Aug 2025436 PMAQI
27th Aug 2025367 PMAQI
27th Aug 2025428 PMAQI
27th Aug 2025389 PMAQI
27th Aug 20253810 PMAQI
27th Aug 20254011 PMAQI
28th Aug 20254012 AMAQI
28th Aug 2025471 AMAQI
28th Aug 2025522 AMAQI
28th Aug 2025533 AMAQI
28th Aug 2025514 AMAQI
27°C24/32°C
28th Aug 2025525 AMAQI
28th Aug 2025526 AMAQI
28th Aug 2025527 AMAQI
28th Aug 2025528 AMAQI
28th Aug 2025329 AMAQI
28th Aug 20253510 AMAQI
28th Aug 20254311 AMAQI
28th Aug 20253812 PMAQI
28th Aug 2025421 PMAQI
28th Aug 2025322 PMAQI
28th Aug 2025403 PMAQI
28th Aug 2025394 PMAQI
28th Aug 2025355 PMAQI
28th Aug 2025436 PMAQI
28th Aug 2025347 PMAQI
28th Aug 2025428 PMAQI
28th Aug 2025379 PMAQI
28th Aug 20253810 PMAQI
28th Aug 20253411 PMAQI
29th Aug 20253312 AMAQI
29th Aug 2025461 AMAQI
29th Aug 2025502 AMAQI
29th Aug 2025513 AMAQI
29th Aug 2025494 AMAQI
25°C23/27°C
29th Aug 2025505 AMAQI
29th Aug 2025486 AMAQI
29th Aug 2025487 AMAQI
29th Aug 2025488 AMAQI
29th Aug 2025339 AMAQI
29th Aug 20254010 AMAQI
29th Aug 20253811 AMAQI
29th Aug 20253412 PMAQI
29th Aug 2025451 PMAQI
29th Aug 2025492 PMAQI
29th Aug 2025523 PMAQI
29th Aug 2025504 PMAQI
29th Aug 2025535 PMAQI
29th Aug 2025546 PMAQI
29th Aug 2025547 PMAQI
29th Aug 2025448 PMAQI
29th Aug 2025519 PMAQI
29th Aug 20254410 PMAQI
29th Aug 20254311 PMAQI
30th Aug 20253812 AMAQI
30th Aug 2025471 AMAQI
30th Aug 2025482 AMAQI
30th Aug 2025493 AMAQI
30th Aug 2025504 AMAQI
26°C23/30°C
30th Aug 2025505 AMAQI
30th Aug 2025496 AMAQI
30th Aug 2025487 AMAQI
30th Aug 2025508 AMAQI
30th Aug 2025429 AMAQI
30th Aug 20255610 AMAQI
30th Aug 20255311 AMAQI
30th Aug 20255012 PMAQI
30th Aug 2025551 PMAQI
30th Aug 2025552 PMAQI
30th Aug 2025563 PMAQI
30th Aug 2025504 PMAQI
30th Aug 2025455 PMAQI
30th Aug 2025546 PMAQI
30th Aug 2025587 PMAQI
30th Aug 2025518 PMAQI
30th Aug 2025449 PMAQI
30th Aug 20254610 PMAQI
30th Aug 20253611 PMAQI
31st Aug 20253712 AMAQI
31st Aug 2025521 AMAQI
31st Aug 2025502 AMAQI
31st Aug 2025523 AMAQI
31st Aug 2025484 AMAQI
28°C24/32°C
31st Aug 2025445 AMAQI
31st Aug 2025466 AMAQI
31st Aug 2025477 AMAQI
31st Aug 2025468 AMAQI
31st Aug 2025449 AMAQI
31st Aug 20255410 AMAQI
31st Aug 20255511 AMAQI
31st Aug 20256412 PMAQI
31st Aug 2025601 PMAQI
31st Aug 2025522 PMAQI
31st Aug 2025553 PMAQI
31st Aug 2025534 PMAQI
31st Aug 2025505 PMAQI
31st Aug 2025516 PMAQI
31st Aug 2025447 PMAQI
31st Aug 2025448 PMAQI
31st Aug 2025489 PMAQI
31st Aug 20254210 PMAQI
31st Aug 20254711 PMAQI
1st Sep 20254112 AMAQI
1st Sep 2025451 AMAQI
1st Sep 2025482 AMAQI
1st Sep 2025463 AMAQI
1st Sep 2025514 AMAQI
27°C25/29°C
1st Sep 2025515 AMAQI
1st Sep 2025506 AMAQI
1st Sep 2025517 AMAQI
1st Sep 2025528 AMAQI
1st Sep 2025489 AMAQI
1st Sep 20254210 AMAQI
1st Sep 20254711 AMAQI
1st Sep 20254612 PMAQI
1st Sep 2025481 PMAQI
1st Sep 2025352 PMAQI
1st Sep 2025463 PMAQI
1st Sep 2025384 PMAQI
1st Sep 2025435 PMAQI
1st Sep 2025316 PMAQI
1st Sep 2025347 PMAQI
1st Sep 2025398 PMAQI
1st Sep 2025419 PMAQI
1st Sep 20254210 PMAQI
1st Sep 20254011 PMAQI
2nd Sep 20254212 AMAQI
2nd Sep 2025461 AMAQI
2nd Sep 2025462 AMAQI
2nd Sep 2025483 AMAQI
2nd Sep 2025454 AMAQI
28°C25/32°C
2nd Sep 2025445 AMAQI
2nd Sep 2025466 AMAQI
2nd Sep 2025467 AMAQI
2nd Sep 2025448 AMAQI
2nd Sep 2025189 AMAQI
2nd Sep 20254410 AMAQI
2nd Sep 20253411 AMAQI
2nd Sep 20252812 PMAQI
2nd Sep 2025391 PMAQI
2nd Sep 2025212 PMAQI
2nd Sep 2025303 PMAQI
2nd Sep 2025284 PMAQI
2nd Sep 2025275 PMAQI
2nd Sep 2025336 PMAQI
2nd Sep 2025287 PMAQI
2nd Sep 2025278 PMAQI
2nd Sep 2025349 PMAQI
2nd Sep 20253510 PMAQI
2nd Sep 20253511 PMAQI
3rd Sep 20253812 AMAQI
3rd Sep 2025431 AMAQI
3rd Sep 2025472 AMAQI
3rd Sep 2025463 AMAQI
3rd Sep 2025444 AMAQI
28°C25/33°C
3rd Sep 2025425 AMAQI
3rd Sep 2025436 AMAQI
3rd Sep 2025437 AMAQI
3rd Sep 2025428 AMAQI
3rd Sep 2025279 AMAQI
3rd Sep 20253110 AMAQI
3rd Sep 20252211 AMAQI
3rd Sep 20252612 PMAQI
3rd Sep 2025291 PMAQI
3rd Sep 2025312 PMAQI
3rd Sep 2025283 PMAQI
3rd Sep 2025314 PMAQI
3rd Sep 2025285 PMAQI
3rd Sep 2025306 PMAQI
3rd Sep 2025307 PMAQI
3rd Sep 2025308 PMAQI
3rd Sep 2025329 PMAQI
3rd Sep 20253310 PMAQI
3rd Sep 20253011 PMAQI
4th Sep 20253212 AMAQI
4th Sep 2025421 AMAQI
4th Sep 2025442 AMAQI
4th Sep 2025433 AMAQI
4th Sep 2025434 AMAQI
27°C24/30°C
4th Sep 2025415 AMAQI
4th Sep 2025426 AMAQI
4th Sep 2025417 AMAQI
4th Sep 2025408 AMAQI
4th Sep 2025239 AMAQI
4th Sep 20252210 AMAQI
4th Sep 20252211 AMAQI
4th Sep 20252312 PMAQI
4th Sep 2025221 PMAQI
4th Sep 2025232 PMAQI
4th Sep 2025213 PMAQI
4th Sep 2025224 PMAQI
4th Sep 2025205 PMAQI
4th Sep 2025186 PMAQI
4th Sep 2025227 PMAQI
4th Sep 2025258 PMAQI
4th Sep 2025259 PMAQI
4th Sep 20252510 PMAQI
4th Sep 20252511 PMAQI
5th Sep 20252212 AMAQI
5th Sep 2025271 AMAQI
5th Sep 2025412 AMAQI
5th Sep 2025413 AMAQI
5th Sep 2025374 AMAQI
26°C23/28°C
5th Sep 2025375 AMAQI
5th Sep 2025366 AMAQI
5th Sep 2025367 AMAQI
5th Sep 2025378 AMAQI
5th Sep 2025209 AMAQI
5th Sep 20251910 AMAQI
5th Sep 20251811 AMAQI
5th Sep 20252212 PMAQI
5th Sep 2025191 PMAQI
5th Sep 2025192 PMAQI
5th Sep 2025223 PMAQI
5th Sep 2025234 PMAQI
5th Sep 2025225 PMAQI
5th Sep 2025246 PMAQI
5th Sep 2025327 PMAQI
5th Sep 2025288 PMAQI
5th Sep 2025299 PMAQI
5th Sep 20252310 PMAQI
5th Sep 20252611 PMAQI
6th Sep 20252612 AMAQI
6th Sep 2025261 AMAQI
6th Sep 2025282 AMAQI
6th Sep 2025273 AMAQI
6th Sep 2025284 AMAQI
24°C23/24°C
6th Sep 2025295 AMAQI
6th Sep 2025306 AMAQI
6th Sep 2025287 AMAQI
6th Sep 2025288 AMAQI
6th Sep 2025179 AMAQI
6th Sep 20252410 AMAQI
6th Sep 20252611 AMAQI
6th Sep 20252312 PMAQI
6th Sep 2025291 PMAQI
6th Sep 2025292 PMAQI
6th Sep 2025293 PMAQI
6th Sep 2025314 PMAQI
6th Sep 2025315 PMAQI
6th Sep 2025306 PMAQI
6th Sep 2025297 PMAQI
6th Sep 2025308 PMAQI
6th Sep 2025289 PMAQI
6th Sep 20252510 PMAQI
6th Sep 20252711 PMAQI
7th Sep 20252312 AMAQI
7th Sep 2025271 AMAQI
7th Sep 2025302 AMAQI
7th Sep 2025283 AMAQI
7th Sep 2025284 AMAQI
24°C21/27°C
7th Sep 2025275 AMAQI
7th Sep 2025276 AMAQI
7th Sep 2025277 AMAQI
7th Sep 2025288 AMAQI
7th Sep 2025279 AMAQI
7th Sep 20252310 AMAQI
7th Sep 20253011 AMAQI
7th Sep 20253012 PMAQI
7th Sep 2025361 PMAQI
7th Sep 2025312 PMAQI
7th Sep 2025403 PMAQI
7th Sep 2025334 PMAQI
7th Sep 2025335 PMAQI
7th Sep 2025306 PMAQI
7th Sep 2025337 PMAQI
7th Sep 2025308 PMAQI
7th Sep 2025309 PMAQI
7th Sep 20252910 PMAQI
7th Sep 20252811 PMAQI
8th Sep 20252712 AMAQI
8th Sep 2025271 AMAQI
8th Sep 2025282 AMAQI
8th Sep 2025283 AMAQI
8th Sep 2025284 AMAQI
25°C22/29°C
8th Sep 2025285 AMAQI
8th Sep 2025286 AMAQI
8th Sep 2025287 AMAQI
8th Sep 2025288 AMAQI
8th Sep 2025349 AMAQI
8th Sep 20253510 AMAQI
8th Sep 20253311 AMAQI
8th Sep 20254112 PMAQI
8th Sep 2025321 PMAQI
8th Sep 2025482 PMAQI
8th Sep 2025523 PMAQI
8th Sep 2025564 PMAQI
8th Sep 2025505 PMAQI
8th Sep 2025446 PMAQI
8th Sep 2025477 PMAQI
8th Sep 2025388 PMAQI
8th Sep 2025309 PMAQI
8th Sep 20252910 PMAQI
8th Sep 20253211 PMAQI
9th Sep 20252912 AMAQI
9th Sep 2025301 AMAQI
9th Sep 2025282 AMAQI
9th Sep 2025293 AMAQI
9th Sep 2025284 AMAQI
26°C24/29°C
9th Sep 2025305 AMAQI
9th Sep 2025326 AMAQI
9th Sep 2025307 AMAQI
9th Sep 2025308 AMAQI
9th Sep 2025629 AMAQI
9th Sep 20253910 AMAQI
9th Sep 20254111 AMAQI
9th Sep 20254312 PMAQI
9th Sep 2025441 PMAQI
9th Sep 2025432 PMAQI
9th Sep 2025393 PMAQI
9th Sep 2025534 PMAQI
9th Sep 2025485 PMAQI
9th Sep 2025506 PMAQI
9th Sep 2025547 PMAQI
9th Sep 2025438 PMAQI
9th Sep 2025339 PMAQI
9th Sep 20253210 PMAQI
9th Sep 20253411 PMAQI
10th Sep 20253212 AMAQI
10th Sep 2025311 AMAQI
10th Sep 2025322 AMAQI
10th Sep 2025313 AMAQI
10th Sep 2025324 AMAQI
25°C24/27°C
10th Sep 2025345 AMAQI
10th Sep 2025346 AMAQI
10th Sep 2025337 AMAQI
10th Sep 2025348 AMAQI
10th Sep 2025499 AMAQI
10th Sep 20254610 AMAQI
10th Sep 20255011 AMAQI
10th Sep 20254612 PMAQI
10th Sep 2025391 PMAQI
10th Sep 2025372 PMAQI
10th Sep 2025463 PMAQI
10th Sep 2025384 PMAQI
10th Sep 2025325 PMAQI
10th Sep 2025336 PMAQI
10th Sep 2025267 PMAQI
10th Sep 2025308 PMAQI
10th Sep 2025329 PMAQI
10th Sep 20252910 PMAQI
10th Sep 20253011 PMAQI
11th Sep 20253112 AMAQI
11th Sep 2025351 AMAQI
11th Sep 2025342 AMAQI
11th Sep 2025353 AMAQI
11th Sep 2025354 AMAQI
24°C22/25°C
11th Sep 2025365 AMAQI
11th Sep 2025336 AMAQI
11th Sep 2025347 AMAQI
11th Sep 2025348 AMAQI
11th Sep 2025189 AMAQI
11th Sep 20252710 AMAQI
11th Sep 20251811 AMAQI
11th Sep 20252612 PMAQI
11th Sep 2025321 PMAQI
11th Sep 2025332 PMAQI
11th Sep 2025303 PMAQI
11th Sep 2025304 PMAQI
11th Sep 2025315 PMAQI
11th Sep 2025316 PMAQI
11th Sep 2025277 PMAQI
11th Sep 2025328 PMAQI
11th Sep 2025309 PMAQI
11th Sep 20253210 PMAQI
11th Sep 20252911 PMAQI
12th Sep 20253112 AMAQI
12th Sep 2025341 AMAQI
12th Sep 2025362 AMAQI
12th Sep 2025373 AMAQI
12th Sep 2025344 AMAQI
23°C22/24°C
12th Sep 2025335 AMAQI
12th Sep 2025326 AMAQI
12th Sep 2025337 AMAQI
12th Sep 2025328 AMAQI
12th Sep 2025269 AMAQI
12th Sep 20253010 AMAQI
12th Sep 20253211 AMAQI
12th Sep 20252912 PMAQI
12th Sep 2025281 PMAQI
12th Sep 2025322 PMAQI
12th Sep 2025333 PMAQI
12th Sep 2025384 PMAQI
12th Sep 2025345 PMAQI
12th Sep 2025306 PMAQI
12th Sep 2025267 PMAQI
12th Sep 2025278 PMAQI
12th Sep 2025289 PMAQI
12th Sep 20252610 PMAQI
12th Sep 20252811 PMAQI
13th Sep 20252912 AMAQI
13th Sep 2025341 AMAQI
13th Sep 2025342 AMAQI
13th Sep 2025353 AMAQI
13th Sep 2025344 AMAQI
23°C21/24°C
13th Sep 2025365 AMAQI
13th Sep 2025356 AMAQI
13th Sep 2025347 AMAQI
13th Sep 2025348 AMAQI
13th Sep 2025209 AMAQI
13th Sep 20251610 AMAQI
13th Sep 20252111 AMAQI
13th Sep 20252312 PMAQI
13th Sep 2025231 PMAQI
13th Sep 2025192 PMAQI
13th Sep 2025223 PMAQI
13th Sep 2025224 PMAQI
13th Sep 2025205 PMAQI
13th Sep 2025206 PMAQI
13th Sep 2025207 PMAQI
13th Sep 2025298 PMAQI
13th Sep 2025289 PMAQI
13th Sep 20252810 PMAQI
13th Sep 20253011 PMAQI
14th Sep 20252912 AMAQI
14th Sep 2025361 AMAQI
14th Sep 2025362 AMAQI
14th Sep 2025363 AMAQI
14th Sep 2025344 AMAQI
24°C22/26°C
14th Sep 2025345 AMAQI
14th Sep 2025336 AMAQI
14th Sep 2025347 AMAQI
14th Sep 2025368 AMAQI
14th Sep 2025249 AMAQI
14th Sep 20252110 AMAQI
14th Sep 20251811 AMAQI
14th Sep 20251812 PMAQI
14th Sep 2025261 PMAQI
14th Sep 2025242 PMAQI
14th Sep 2025233 PMAQI
14th Sep 2025284 PMAQI
14th Sep 2025295 PMAQI
14th Sep 2025366 PMAQI
14th Sep 2025397 PMAQI
14th Sep 2025388 PMAQI
14th Sep 2025389 PMAQI
14th Sep 20253610 PMAQI
14th Sep 20253811 PMAQI
15th Sep 20253512 AMAQI
15th Sep 2025341 AMAQI
15th Sep 2025362 AMAQI
15th Sep 2025363 AMAQI
15th Sep 2025334 AMAQI
26°C24/30°C
15th Sep 2025345 AMAQI
15th Sep 2025346 AMAQI
15th Sep 2025347 AMAQI
15th Sep 2025348 AMAQI
15th Sep 2025349 AMAQI
15th Sep 20253410 AMAQI
15th Sep 20253311 AMAQI
15th Sep 20253312 PMAQI
15th Sep 2025291 PMAQI
15th Sep 2025282 PMAQI
15th Sep 2025303 PMAQI
15th Sep 2025284 PMAQI
15th Sep 2025255 PMAQI
15th Sep 2025296 PMAQI
15th Sep 2025367 PMAQI
15th Sep 2025348 PMAQI
15th Sep 2025329 PMAQI
15th Sep 20253110 PMAQI
15th Sep 20253411 PMAQI
16th Sep 20253212 AMAQI
16th Sep 2025351 AMAQI
16th Sep 2025352 AMAQI
16th Sep 2025353 AMAQI
16th Sep 2025344 AMAQI
25°C23/27°C
16th Sep 2025345 AMAQI
16th Sep 2025346 AMAQI
16th Sep 2025347 AMAQI
16th Sep 2025348 AMAQI
16th Sep 2025349 AMAQI
16th Sep 20253910 AMAQI
16th Sep 20254611 AMAQI
16th Sep 20254512 PMAQI
16th Sep 2025461 PMAQI
16th Sep 2025502 PMAQI
16th Sep 2025473 PMAQI
16th Sep 2025414 PMAQI
16th Sep 2025365 PMAQI
16th Sep 2025366 PMAQI
16th Sep 2025347 PMAQI
16th Sep 2025338 PMAQI
16th Sep 2025309 PMAQI
16th Sep 20253010 PMAQI
16th Sep 20253111 PMAQI
17th Sep 20253112 AMAQI
17th Sep 2025331 AMAQI
17th Sep 2025332 AMAQI
17th Sep 2025333 AMAQI
17th Sep 2025344 AMAQI
25°C23/29°C
17th Sep 2025355 AMAQI
17th Sep 2025366 AMAQI
17th Sep 2025367 AMAQI
17th Sep 2025368 AMAQI
17th Sep 2025509 AMAQI
17th Sep 20255610 AMAQI
17th Sep 20255511 AMAQI
17th Sep 20255612 PMAQI
17th Sep 2025551 PMAQI
17th Sep 2025572 PMAQI
17th Sep 2025523 PMAQI
17th Sep 2025484 PMAQI
17th Sep 2025535 PMAQI
17th Sep 2025406 PMAQI
17th Sep 2025497 PMAQI
17th Sep 2025378 PMAQI
17th Sep 2025409 PMAQI
17th Sep 20254510 PMAQI
17th Sep 20254511 PMAQI
18th Sep 20254012 AMAQI
18th Sep 2025321 AMAQI
18th Sep 2025342 AMAQI
18th Sep 2025343 AMAQI
18th Sep 2025364 AMAQI
26°C24/30°C
18th Sep 2025405 AMAQI
18th Sep 2025406 AMAQI
18th Sep 2025407 AMAQI
18th Sep 2025408 AMAQI
18th Sep 2025569 AMAQI
18th Sep 20256310 AMAQI
18th Sep 20256411 AMAQI
18th Sep 20256312 PMAQI
18th Sep 2025621 PMAQI
18th Sep 2025662 PMAQI
18th Sep 2025583 PMAQI
18th Sep 2025284 PMAQI
18th Sep 2025305 PMAQI
18th Sep 2025176 PMAQI
18th Sep 2025157 PMAQI
18th Sep 2025198 PMAQI
18th Sep 2025289 PMAQI
18th Sep 20252810 PMAQI
18th Sep 20252811 PMAQI
19th Sep 20253012 AMAQI
19th Sep 2025341 AMAQI
19th Sep 2025382 AMAQI
19th Sep 2025363 AMAQI
19th Sep 2025384 AMAQI
25°C21/31°C
19th Sep 2025445 AMAQI
5 AM19th Sep 2025466 AMAQI
19th Sep 2025457 AMAQI
19th Sep 2025448 AMAQI
19th Sep 2025249 AMAQI
19th Sep 20251610 AMAQI
19th Sep 20251611 AMAQI
11 AM19th Sep 20252012 PMAQI
19th Sep 2025201 PMAQI
19th Sep 2025212 PMAQI
19th Sep 2025223 PMAQI
19th Sep 2025264 PMAQI
19th Sep 2025215 PMAQI
19th Sep 2025236 PMAQI
6 PM11 PM
4 AM
--°C/°C
Day time
Avg. Highest Time
5 AM - 8 AM
41AQI
4 hours / Day
120 hours / Month
Avg. Lowest Time
9 AM
37AQI
1 hours / Day
30 hours / Month
In the last 30 days, during the daytime, the highest AQI was between 5 AM to 8 AM (Avg. 41), while the lowest AQI was between 9 AM to 9 AM (Avg. 37).
Night time
Avg. Highest Time
1 AM - 7 PM
40AQI
5 hours / Day
150 hours / Month
Avg. Lowest Time
12 AM
35AQI
1 hours / Day
30 hours / Month
In the last 30 days, during the daytime, the highest AQI was between 1 AM to 7 PM (Avg. 40), while the lowest AQI was between 12 AM to 12 AM (Avg. 35).
2025 Days Vs Air Quality
Hitachiomiya, Ibaraki, Japan
2025
91%
237
9%
24
Total number of days with different AQI categories in last 262 days in 2025 (103 days remaining)
Good
237 DaysModerate
24 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 262 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.
-1th undefined 2025
-1th undefined 2025
-1th undefined 2025
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
42AQI
42AQI
4th August 2025
53AQI
53AQI
5th August 2025
47AQI
47AQI
6th August 2025
44AQI
44AQI
7th August 2025
35AQI
35AQI
8th August 2025
36AQI
36AQI
9th August 2025
33AQI
33AQI
10th August 2025
33AQI
33AQI
11th August 2025
33AQI
33AQI
12th August 2025
30AQI
30AQI
13th August 2025
30AQI
30AQI
14th August 2025
31AQI
31AQI
15th August 2025
30AQI
30AQI
16th August 2025
33AQI
33AQI
17th August 2025
37AQI
37AQI
18th August 2025
40AQI
40AQI
19th August 2025
41AQI
41AQI
20th August 2025
47AQI
47AQI
21st August 2025
45AQI
45AQI
22nd August 2025
46AQI
46AQI
23rd August 2025
48AQI
48AQI
24th August 2025
52AQI
52AQI
25th August 2025
51AQI
51AQI
26th August 2025
53AQI
53AQI
27th August 2025
45AQI
45AQI
28th August 2025
42AQI
42AQI
29th August 2025
47AQI
47AQI
30th August 2025
49AQI
49AQI
31st August 2025
49AQI
49AQI
1st September 2025
44AQI
44AQI
2nd September 2025
36AQI
36AQI
3rd September 2025
35AQI
35AQI
4th September 2025
29AQI
29AQI
5th September 2025
26AQI
26AQI
6th September 2025
28AQI
28AQI
7th September 2025
29AQI
29AQI
8th September 2025
35AQI
35AQI
9th September 2025
38AQI
38AQI
10th September 2025
35AQI
35AQI
11th September 2025
31AQI
31AQI
12th September 2025
31AQI
31AQI
13th September 2025
27AQI
27AQI
14th September 2025
32AQI
32AQI
15th September 2025
33AQI
33AQI
16th September 2025
36AQI
36AQI
17th September 2025
43AQI
43AQI
18th September 2025
42AQI
42AQI
19th September 2025
20th September 2025
21st September 2025
22nd September 2025
23rd September 2025
24th September 2025
25th September 2025
26th September 2025
27th September 2025
28th September 2025
29th September 2025
30th September 2025
1st October 2025
2nd October 2025
3rd October 2025
4th October 2025
5th October 2025
6th October 2025
7th October 2025
8th October 2025
9th October 2025
10th October 2025
11th October 2025
12th October 2025
13th October 2025
14th October 2025
15th October 2025
16th October 2025
17th October 2025
18th October 2025
19th October 2025
20th October 2025
21st October 2025
22nd October 2025
23rd October 2025
24th October 2025
25th October 2025
26th October 2025
27th October 2025
28th October 2025
29th October 2025
30th October 2025
31st October 2025
1st November 2025
2nd November 2025
3rd November 2025
4th November 2025
5th November 2025
6th November 2025
7th November 2025
8th November 2025
9th November 2025
10th November 2025
11th November 2025
12th November 2025
13th November 2025
14th November 2025
15th November 2025
16th November 2025
17th November 2025
18th November 2025
19th November 2025
20th November 2025
21st November 2025
22nd November 2025
23rd November 2025
24th November 2025
25th November 2025
26th November 2025
27th November 2025
28th November 2025
29th November 2025
30th November 2025
1st December 2025
2nd December 2025
3rd December 2025
4th December 2025
5th December 2025
6th December 2025
7th December 2025
8th December 2025
9th December 2025
10th December 2025
11th December 2025
12th December 2025
13th December 2025
14th December 2025
15th December 2025
16th December 2025
17th December 2025
18th December 2025
19th December 2025
20th December 2025
21st December 2025
22nd December 2025
23rd December 2025
24th December 2025
25th December 2025
26th December 2025
27th December 2025
28th December 2025
29th December 2025
30th December 2025
31st December 2025
32AQI
33AQI
39AQI
37AQI
33AQI
36AQI
47AQI
41AQI
34AQI
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
27
4
18
237
24
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 10.6% (worsened AQI) compared to previous years: 2020 (31), 2021 (32), 2022 (35), 2023 (37), 2024 (33).
