Hirodaiotamachi, Yokohama, Kanagawa, 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
Hirodaiotamachi, Yokohama, Kanagawa, Japan
2021
2022
2023
2024
2025
AQI
.
Days
AQI Trends: Highest and Lowest
Highest AQI recorded on
26th Aug 2021
75AQILowest AQI recorded on
25th Aug 2023
13AQISame Day Analysis (2nd August ):
On this day, AQI across the 5 years varied significantly: 2025 ranks 1st highest AQI at 38 of Good air quality on the same day.
Download 2024 Annual Data
World Air Quality Report
Day & Night AQI Trend: 3rd Aug - 4th Aug 2025
Hirodaiotamachi, Yokohama, Kanagawa, Japan
AQI
Day
Night
.
4 AM3rd Aug 2025
6 PM
3 AM4th Aug 2025
Day time
Avg. Highest Time
12AMNaNth undefined
AQI
Avg. Lowest Time
12AMNaNth undefined
AQI
Night time
Avg. Highest Time
12PM3rd Aug
61AQI
Avg. Lowest Time
1AM4th Aug
37AQI
In the last 24 hours,
Hirodaiotamachi's AQI reached its highest point of 61 at 12 PM during the Night, while the lowest point, 37, was recorded at 1 AM during the Night between 3rd Aug and 4th Aug 2025.
Day & Night AQI Trend : Jul - Aug 2025
Hirodaiotamachi, Yokohama, Kanagawa, Japan
JulAug
05th - 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 - 04th04th
Day
Night
5th Jul 2025374 AMAQI
5th Jul 2025385 AMAQI
5th Jul 2025386 AMAQI
5th Jul 2025387 AMAQI
5th Jul 2025388 AMAQI
5th Jul 2025369 AMAQI
5th Jul 20253810 AMAQI
5th Jul 20255011 AMAQI
5th Jul 20255812 PMAQI
5th Jul 2025561 PMAQI
5th Jul 2025562 PMAQI
5th Jul 2025583 PMAQI
5th Jul 2025604 PMAQI
5th Jul 2025635 PMAQI
5th Jul 2025636 PMAQI
5th Jul 2025637 PMAQI
5th Jul 2025628 PMAQI
5th Jul 2025449 PMAQI
5th Jul 20254510 PMAQI
5th Jul 20254511 PMAQI
6th Jul 20254412 AMAQI
6th Jul 2025411 AMAQI
6th Jul 2025362 AMAQI
6th Jul 2025363 AMAQI
27°C25/29°C
6th Jul 2025374 AMAQI
6th Jul 2025385 AMAQI
6th Jul 2025386 AMAQI
6th Jul 2025387 AMAQI
6th Jul 2025388 AMAQI
6th Jul 2025529 AMAQI
6th Jul 20257210 AMAQI
6th Jul 20258111 AMAQI
6th Jul 20257912 PMAQI
6th Jul 2025821 PMAQI
6th Jul 2025762 PMAQI
6th Jul 2025813 PMAQI
6th Jul 2025854 PMAQI
6th Jul 2025825 PMAQI
6th Jul 2025856 PMAQI
6th Jul 2025877 PMAQI
6th Jul 2025798 PMAQI
6th Jul 2025549 PMAQI
6th Jul 20255610 PMAQI
6th Jul 20255611 PMAQI
7th Jul 20255712 AMAQI
7th Jul 2025521 AMAQI
7th Jul 2025432 AMAQI
7th Jul 2025423 AMAQI
28°C26/31°C
7th Jul 2025434 AMAQI
7th Jul 2025485 AMAQI
7th Jul 2025486 AMAQI
7th Jul 2025497 AMAQI
7th Jul 2025478 AMAQI
7th Jul 20251009 AMAQI
7th Jul 202511610 AMAQI
7th Jul 202512011 AMAQI
7th Jul 202512812 PMAQI
7th Jul 2025981 PMAQI
7th Jul 2025812 PMAQI
7th Jul 2025533 PMAQI
7th Jul 2025544 PMAQI
7th Jul 2025715 PMAQI
7th Jul 2025996 PMAQI
7th Jul 20251047 PMAQI
7th Jul 2025988 PMAQI
7th Jul 2025699 PMAQI
7th Jul 20256610 PMAQI
7th Jul 20256611 PMAQI
8th Jul 20256912 AMAQI
8th Jul 2025631 AMAQI
8th Jul 2025552 AMAQI
8th Jul 2025553 AMAQI
28°C26/31°C
8th Jul 2025564 AMAQI
8th Jul 2025595 AMAQI
8th Jul 2025596 AMAQI
8th Jul 2025607 AMAQI
8th Jul 2025608 AMAQI
8th Jul 20251029 AMAQI
8th Jul 202511410 AMAQI
8th Jul 202511211 AMAQI
8th Jul 202510612 PMAQI
8th Jul 2025841 PMAQI
8th Jul 2025602 PMAQI
8th Jul 2025593 PMAQI
8th Jul 2025614 PMAQI
8th Jul 2025565 PMAQI
8th Jul 2025686 PMAQI
8th Jul 2025827 PMAQI
8th Jul 2025838 PMAQI
8th Jul 2025709 PMAQI
8th Jul 20257010 PMAQI
8th Jul 20257111 PMAQI
9th Jul 20257212 AMAQI
9th Jul 2025701 AMAQI
9th Jul 2025642 AMAQI
9th Jul 2025643 AMAQI
28°C26/30°C
9th Jul 2025644 AMAQI
9th Jul 2025685 AMAQI
9th Jul 2025686 AMAQI
9th Jul 2025687 AMAQI
9th Jul 2025688 AMAQI
9th Jul 2025889 AMAQI
9th Jul 202510610 AMAQI
9th Jul 202511711 AMAQI
9th Jul 202511112 PMAQI
9th Jul 2025951 PMAQI
9th Jul 2025882 PMAQI
9th Jul 2025683 PMAQI
9th Jul 2025624 PMAQI
9th Jul 2025625 PMAQI
9th Jul 2025666 PMAQI
9th Jul 2025597 PMAQI
9th Jul 2025588 PMAQI
9th Jul 2025659 PMAQI
9th Jul 20256510 PMAQI
9th Jul 20256411 PMAQI
10th Jul 20256412 AMAQI
10th Jul 2025661 AMAQI
10th Jul 2025702 AMAQI
10th Jul 2025703 AMAQI
28°C26/29°C
10th Jul 2025704 AMAQI
10th Jul 2025735 AMAQI
10th Jul 2025746 AMAQI
10th Jul 2025727 AMAQI
10th Jul 2025748 AMAQI
10th Jul 2025329 AMAQI
10th Jul 20252310 AMAQI
10th Jul 20253111 AMAQI
10th Jul 20253412 PMAQI
10th Jul 2025501 PMAQI
10th Jul 2025492 PMAQI
10th Jul 2025503 PMAQI
10th Jul 2025494 PMAQI
10th Jul 2025475 PMAQI
10th Jul 2025466 PMAQI
10th Jul 2025487 PMAQI
10th Jul 2025518 PMAQI
10th Jul 2025629 PMAQI
10th Jul 20256210 PMAQI
10th Jul 20256211 PMAQI
11th Jul 20256212 AMAQI
11th Jul 2025641 AMAQI
11th Jul 2025692 AMAQI
11th Jul 2025683 AMAQI
28°C24/30°C
11th Jul 2025684 AMAQI
11th Jul 2025655 AMAQI
11th Jul 2025646 AMAQI
11th Jul 2025647 AMAQI
11th Jul 2025648 AMAQI
11th Jul 2025299 AMAQI
11th Jul 20251810 AMAQI
11th Jul 20252011 AMAQI
11th Jul 20252612 PMAQI
11th Jul 2025451 PMAQI
11th Jul 2025472 PMAQI
11th Jul 2025473 PMAQI
11th Jul 2025444 PMAQI
11th Jul 2025475 PMAQI
11th Jul 2025506 PMAQI
11th Jul 2025467 PMAQI
11th Jul 2025508 PMAQI
11th Jul 2025609 PMAQI
11th Jul 20256010 PMAQI
11th Jul 20256211 PMAQI
12th Jul 20256012 AMAQI
12th Jul 2025621 AMAQI
12th Jul 2025642 AMAQI
12th Jul 2025643 AMAQI
24°C23/26°C
12th Jul 2025644 AMAQI
12th Jul 2025625 AMAQI
12th Jul 2025626 AMAQI
12th Jul 2025627 AMAQI
12th Jul 2025628 AMAQI
12th Jul 2025399 AMAQI
12th Jul 20253310 AMAQI
12th Jul 20253811 AMAQI
12th Jul 20254212 PMAQI
12th Jul 2025511 PMAQI
12th Jul 2025522 PMAQI
12th Jul 2025533 PMAQI
12th Jul 2025554 PMAQI
12th Jul 2025575 PMAQI
12th Jul 2025566 PMAQI
12th Jul 2025547 PMAQI
12th Jul 2025548 PMAQI
12th Jul 2025599 PMAQI
12th Jul 20255810 PMAQI
12th Jul 20255811 PMAQI
13th Jul 20255812 AMAQI
13th Jul 2025601 AMAQI
13th Jul 2025612 AMAQI
13th Jul 2025623 AMAQI
25°C22/27°C
13th Jul 2025614 AMAQI
13th Jul 2025605 AMAQI
13th Jul 2025606 AMAQI
13th Jul 2025607 AMAQI
13th Jul 2025608 AMAQI
13th Jul 2025499 AMAQI
13th Jul 20254310 AMAQI
13th Jul 20254711 AMAQI
13th Jul 20255212 PMAQI
13th Jul 2025531 PMAQI
13th Jul 2025522 PMAQI
13th Jul 2025523 PMAQI
13th Jul 2025514 PMAQI
13th Jul 2025505 PMAQI
13th Jul 2025466 PMAQI
13th Jul 2025447 PMAQI
13th Jul 2025458 PMAQI
13th Jul 2025569 PMAQI
13th Jul 20255610 PMAQI
13th Jul 20255611 PMAQI
14th Jul 20255612 AMAQI
14th Jul 2025571 AMAQI
14th Jul 2025592 AMAQI
14th Jul 2025593 AMAQI
26°C24/28°C
14th Jul 2025594 AMAQI
14th Jul 2025585 AMAQI
14th Jul 2025586 AMAQI
14th Jul 2025587 AMAQI
14th Jul 2025588 AMAQI
14th Jul 2025309 AMAQI
14th Jul 20252210 AMAQI
14th Jul 20252411 AMAQI
14th Jul 20252112 PMAQI
14th Jul 2025341 PMAQI
14th Jul 2025342 PMAQI
14th Jul 2025303 PMAQI
14th Jul 2025324 PMAQI
14th Jul 2025365 PMAQI
14th Jul 2025426 PMAQI
14th Jul 2025447 PMAQI
14th Jul 2025408 PMAQI
14th Jul 2025549 PMAQI
14th Jul 20255410 PMAQI
14th Jul 20255411 PMAQI
15th Jul 20255412 AMAQI
15th Jul 2025551 AMAQI
15th Jul 2025572 AMAQI
15th Jul 2025573 AMAQI
26°C25/28°C
15th Jul 2025574 AMAQI
15th Jul 2025565 AMAQI
15th Jul 2025566 AMAQI
15th Jul 2025567 AMAQI
15th Jul 2025568 AMAQI
15th Jul 2025339 AMAQI
15th Jul 20251910 AMAQI
15th Jul 20252211 AMAQI
15th Jul 20252812 PMAQI
15th Jul 2025391 PMAQI
15th Jul 2025402 PMAQI
15th Jul 2025423 PMAQI
15th Jul 2025394 PMAQI
15th Jul 2025375 PMAQI
15th Jul 2025416 PMAQI
15th Jul 2025397 PMAQI
15th Jul 2025398 PMAQI
15th Jul 2025529 PMAQI
15th Jul 20255310 PMAQI
15th Jul 20255311 PMAQI
16th Jul 20255412 AMAQI
16th Jul 2025541 AMAQI
16th Jul 2025542 AMAQI
16th Jul 2025553 AMAQI
27°C26/28°C
16th Jul 2025554 AMAQI
16th Jul 2025545 AMAQI
16th Jul 2025546 AMAQI
16th Jul 2025547 AMAQI
16th Jul 2025548 AMAQI
16th Jul 2025409 AMAQI
16th Jul 20252810 AMAQI
16th Jul 20252411 AMAQI
16th Jul 20252212 PMAQI
16th Jul 2025361 PMAQI
16th Jul 2025362 PMAQI
16th Jul 2025383 PMAQI
16th Jul 2025364 PMAQI
16th Jul 2025345 PMAQI
16th Jul 2025356 PMAQI
16th Jul 2025367 PMAQI
16th Jul 2025388 PMAQI
16th Jul 2025519 PMAQI
16th Jul 20255210 PMAQI
16th Jul 20255211 PMAQI
17th Jul 20255112 AMAQI
17th Jul 2025521 AMAQI
17th Jul 2025532 AMAQI
17th Jul 2025533 AMAQI
27°C26/28°C
17th Jul 2025534 AMAQI
17th Jul 2025525 AMAQI
17th Jul 2025526 AMAQI
17th Jul 2025537 AMAQI
17th Jul 2025528 AMAQI
17th Jul 2025349 AMAQI
17th Jul 20253110 AMAQI
17th Jul 20253511 AMAQI
17th Jul 20253812 PMAQI
17th Jul 2025401 PMAQI
17th Jul 2025392 PMAQI
17th Jul 2025393 PMAQI
17th Jul 2025384 PMAQI
17th Jul 2025375 PMAQI
17th Jul 2025416 PMAQI
17th Jul 2025427 PMAQI
17th Jul 2025448 PMAQI
17th Jul 2025499 PMAQI
17th Jul 20254910 PMAQI
17th Jul 20254811 PMAQI
18th Jul 20254912 AMAQI
18th Jul 2025511 AMAQI
18th Jul 2025522 AMAQI
18th Jul 2025523 AMAQI
27°C26/28°C
18th Jul 2025524 AMAQI
18th Jul 2025525 AMAQI
18th Jul 2025516 AMAQI
18th Jul 2025527 AMAQI
18th Jul 2025518 AMAQI
18th Jul 2025309 AMAQI
18th Jul 20251910 AMAQI
18th Jul 20252511 AMAQI
18th Jul 20252612 PMAQI
18th Jul 2025321 PMAQI
18th Jul 2025352 PMAQI
18th Jul 2025353 PMAQI
18th Jul 2025344 PMAQI
18th Jul 2025325 PMAQI
18th Jul 2025326 PMAQI
18th Jul 2025327 PMAQI
18th Jul 2025368 PMAQI
18th Jul 2025459 PMAQI
18th Jul 20254610 PMAQI
18th Jul 20254611 PMAQI
19th Jul 20254612 AMAQI
19th Jul 2025461 AMAQI
19th Jul 2025502 AMAQI
19th Jul 2025513 AMAQI
27°C25/28°C
19th Jul 2025504 AMAQI
19th Jul 2025485 AMAQI
19th Jul 2025506 AMAQI
19th Jul 2025497 AMAQI
19th Jul 2025508 AMAQI
19th Jul 2025289 AMAQI
19th Jul 20252010 AMAQI
19th Jul 20251611 AMAQI
19th Jul 20251912 PMAQI
19th Jul 2025271 PMAQI
19th Jul 2025272 PMAQI
19th Jul 2025223 PMAQI
19th Jul 2025234 PMAQI
19th Jul 2025225 PMAQI
19th Jul 2025246 PMAQI
19th Jul 2025237 PMAQI
19th Jul 2025298 PMAQI
19th Jul 2025409 PMAQI
19th Jul 20254110 PMAQI
19th Jul 20254211 PMAQI
20th Jul 20254012 AMAQI
20th Jul 2025421 AMAQI
20th Jul 2025472 AMAQI
20th Jul 2025483 AMAQI
27°C26/29°C
20th Jul 2025464 AMAQI
20th Jul 2025455 AMAQI
20th Jul 2025446 AMAQI
20th Jul 2025447 AMAQI
20th Jul 2025448 AMAQI
20th Jul 2025329 AMAQI
20th Jul 20251910 AMAQI
20th Jul 20251911 AMAQI
20th Jul 20252612 PMAQI
20th Jul 2025311 PMAQI
20th Jul 2025282 PMAQI
20th Jul 2025203 PMAQI
20th Jul 2025204 PMAQI
20th Jul 2025205 PMAQI
20th Jul 2025206 PMAQI
20th Jul 2025257 PMAQI
20th Jul 2025338 PMAQI
20th Jul 2025379 PMAQI
20th Jul 20253810 PMAQI
20th Jul 20253811 PMAQI
21st Jul 20253812 AMAQI
21st Jul 2025381 AMAQI
21st Jul 2025422 AMAQI
21st Jul 2025423 AMAQI
27°C26/29°C
21st Jul 2025424 AMAQI
21st Jul 2025405 AMAQI
21st Jul 2025396 AMAQI
21st Jul 2025397 AMAQI
21st Jul 2025398 AMAQI
21st Jul 2025259 AMAQI
21st Jul 20252210 AMAQI
21st Jul 20252511 AMAQI
21st Jul 20252812 PMAQI
21st Jul 2025331 PMAQI
21st Jul 2025342 PMAQI
21st Jul 2025323 PMAQI
21st Jul 2025304 PMAQI
21st Jul 2025315 PMAQI
21st Jul 2025346 PMAQI
21st Jul 2025337 PMAQI
21st Jul 2025328 PMAQI
21st Jul 2025369 PMAQI
21st Jul 20253410 PMAQI
21st Jul 20253411 PMAQI
22nd Jul 20253412 AMAQI
22nd Jul 2025361 AMAQI
22nd Jul 2025402 AMAQI
22nd Jul 2025393 AMAQI
28°C27/30°C
22nd Jul 2025394 AMAQI
22nd Jul 2025395 AMAQI
22nd Jul 2025386 AMAQI
22nd Jul 2025397 AMAQI
22nd Jul 2025388 AMAQI
22nd Jul 2025289 AMAQI
22nd Jul 20253510 AMAQI
22nd Jul 20254411 AMAQI
22nd Jul 20254412 PMAQI
22nd Jul 2025371 PMAQI
22nd Jul 2025362 PMAQI
22nd Jul 2025343 PMAQI
22nd Jul 2025344 PMAQI
22nd Jul 2025305 PMAQI
22nd Jul 2025186 PMAQI
22nd Jul 2025187 PMAQI
22nd Jul 2025228 PMAQI
22nd Jul 2025309 PMAQI
22nd Jul 20253010 PMAQI
22nd Jul 20253011 PMAQI
23rd Jul 20253012 AMAQI
23rd Jul 2025341 AMAQI
23rd Jul 2025362 AMAQI
23rd Jul 2025363 AMAQI
28°C27/30°C
23rd Jul 2025364 AMAQI
23rd Jul 2025385 AMAQI
23rd Jul 2025376 AMAQI
23rd Jul 2025377 AMAQI
23rd Jul 2025368 AMAQI
23rd Jul 2025229 AMAQI
23rd Jul 20252010 AMAQI
23rd Jul 20253011 AMAQI
23rd Jul 20254912 PMAQI
23rd Jul 2025421 PMAQI
23rd Jul 2025372 PMAQI
23rd Jul 2025363 PMAQI
23rd Jul 2025394 PMAQI
23rd Jul 2025325 PMAQI
23rd Jul 2025276 PMAQI
23rd Jul 2025257 PMAQI
23rd Jul 2025248 PMAQI
23rd Jul 2025289 PMAQI
23rd Jul 20253010 PMAQI
23rd Jul 20252811 PMAQI
24th Jul 20252812 AMAQI
24th Jul 2025301 AMAQI
24th Jul 2025322 AMAQI
24th Jul 2025333 AMAQI
28°C27/30°C
24th Jul 2025334 AMAQI
24th Jul 2025345 AMAQI
24th Jul 2025356 AMAQI
24th Jul 2025347 AMAQI
24th Jul 2025348 AMAQI
24th Jul 2025409 AMAQI
24th Jul 20255410 AMAQI
24th Jul 20256011 AMAQI
24th Jul 20256012 PMAQI
24th Jul 2025541 PMAQI
24th Jul 2025442 PMAQI
24th Jul 2025363 PMAQI
24th Jul 2025324 PMAQI
24th Jul 2025275 PMAQI
24th Jul 2025246 PMAQI
24th Jul 2025237 PMAQI
24th Jul 2025248 PMAQI
24th Jul 2025289 PMAQI
24th Jul 20253010 PMAQI
24th Jul 20252911 PMAQI
25th Jul 20252812 AMAQI
25th Jul 2025301 AMAQI
25th Jul 2025322 AMAQI
25th Jul 2025313 AMAQI
28°C27/30°C
25th Jul 2025324 AMAQI
25th Jul 2025345 AMAQI
25th Jul 2025356 AMAQI
25th Jul 2025357 AMAQI
25th Jul 2025348 AMAQI
25th Jul 2025309 AMAQI
25th Jul 20253110 AMAQI
25th Jul 20252611 AMAQI
25th Jul 20253512 PMAQI
25th Jul 2025261 PMAQI
25th Jul 2025262 PMAQI
25th Jul 2025243 PMAQI
25th Jul 2025234 PMAQI
25th Jul 2025205 PMAQI
25th Jul 2025256 PMAQI
25th Jul 2025257 PMAQI
25th Jul 2025248 PMAQI
25th Jul 2025279 PMAQI
25th Jul 20252910 PMAQI
25th Jul 20252811 PMAQI
26th Jul 20252712 AMAQI
26th Jul 2025301 AMAQI
26th Jul 2025322 AMAQI
26th Jul 2025323 AMAQI
29°C27/30°C
26th Jul 2025324 AMAQI
26th Jul 2025315 AMAQI
26th Jul 2025326 AMAQI
26th Jul 2025327 AMAQI
26th Jul 2025328 AMAQI
26th Jul 2025249 AMAQI
26th Jul 20252610 AMAQI
26th Jul 20252811 AMAQI
26th Jul 20252812 PMAQI
26th Jul 2025291 PMAQI
26th Jul 2025272 PMAQI
26th Jul 2025263 PMAQI
26th Jul 2025244 PMAQI
26th Jul 2025245 PMAQI
26th Jul 2025246 PMAQI
26th Jul 2025247 PMAQI
26th Jul 2025258 PMAQI
26th Jul 2025279 PMAQI
26th Jul 20252810 PMAQI
26th Jul 20252811 PMAQI
27th Jul 20252712 AMAQI
27th Jul 2025291 AMAQI
27th Jul 2025312 AMAQI
27th Jul 2025303 AMAQI
29°C27/30°C
27th Jul 2025314 AMAQI
27th Jul 2025305 AMAQI
27th Jul 2025306 AMAQI
27th Jul 2025307 AMAQI
27th Jul 2025308 AMAQI
27th Jul 2025259 AMAQI
27th Jul 20252210 AMAQI
27th Jul 20252511 AMAQI
27th Jul 20252612 PMAQI
27th Jul 2025261 PMAQI
27th Jul 2025242 PMAQI
27th Jul 2025243 PMAQI
27th Jul 2025264 PMAQI
27th Jul 2025255 PMAQI
27th Jul 2025216 PMAQI
27th Jul 2025197 PMAQI
27th Jul 2025228 PMAQI
27th Jul 2025279 PMAQI
27th Jul 20252710 PMAQI
27th Jul 20252611 PMAQI
28th Jul 20252712 AMAQI
28th Jul 2025281 AMAQI
28th Jul 2025302 AMAQI
28th Jul 2025293 AMAQI
28°C27/30°C
28th Jul 2025294 AMAQI
28th Jul 2025285 AMAQI
28th Jul 2025286 AMAQI
28th Jul 2025287 AMAQI
28th Jul 2025298 AMAQI
28th Jul 2025249 AMAQI
28th Jul 20253610 AMAQI
28th Jul 20254511 AMAQI
28th Jul 20254812 PMAQI
28th Jul 2025491 PMAQI
28th Jul 2025432 PMAQI
28th Jul 2025243 PMAQI
28th Jul 2025234 PMAQI
28th Jul 2025185 PMAQI
28th Jul 2025196 PMAQI
28th Jul 2025177 PMAQI
28th Jul 2025218 PMAQI
28th Jul 2025269 PMAQI
28th Jul 20252510 PMAQI
28th Jul 20252611 PMAQI
29th Jul 20252612 AMAQI
29th Jul 2025271 AMAQI
29th Jul 2025282 AMAQI
29th Jul 2025283 AMAQI
28°C27/30°C
29th Jul 2025304 AMAQI
29th Jul 2025295 AMAQI
29th Jul 2025306 AMAQI
29th Jul 2025307 AMAQI
29th Jul 2025288 AMAQI
29th Jul 2025249 AMAQI
29th Jul 20253110 AMAQI
29th Jul 20253511 AMAQI
29th Jul 20254012 PMAQI
29th Jul 2025471 PMAQI
29th Jul 2025532 PMAQI
29th Jul 2025553 PMAQI
29th Jul 2025544 PMAQI
29th Jul 2025465 PMAQI
29th Jul 2025336 PMAQI
29th Jul 2025287 PMAQI
29th Jul 2025228 PMAQI
29th Jul 2025279 PMAQI
29th Jul 20252610 PMAQI
29th Jul 20252611 PMAQI
30th Jul 20252812 AMAQI
30th Jul 2025281 AMAQI
30th Jul 2025282 AMAQI
30th Jul 2025283 AMAQI
29°C26/32°C
30th Jul 2025294 AMAQI
30th Jul 2025295 AMAQI
30th Jul 2025296 AMAQI
30th Jul 2025307 AMAQI
30th Jul 2025298 AMAQI
30th Jul 2025219 AMAQI
30th Jul 20252010 AMAQI
30th Jul 20252411 AMAQI
30th Jul 20253012 PMAQI
30th Jul 2025331 PMAQI
30th Jul 2025312 PMAQI
30th Jul 2025313 PMAQI
30th Jul 2025314 PMAQI
30th Jul 2025315 PMAQI
30th Jul 2025306 PMAQI
30th Jul 2025317 PMAQI
30th Jul 2025328 PMAQI
30th Jul 2025309 PMAQI
30th Jul 20253210 PMAQI
30th Jul 20253211 PMAQI
31st Jul 20253012 AMAQI
31st Jul 2025291 AMAQI
31st Jul 2025282 AMAQI
31st Jul 2025283 AMAQI
29°C26/33°C
31st Jul 2025284 AMAQI
31st Jul 2025285 AMAQI
31st Jul 2025286 AMAQI
31st Jul 2025287 AMAQI
31st Jul 2025288 AMAQI
31st Jul 2025289 AMAQI
31st Jul 20252810 AMAQI
31st Jul 20253911 AMAQI
31st Jul 20254012 PMAQI
31st Jul 2025341 PMAQI
31st Jul 2025342 PMAQI
31st Jul 2025373 PMAQI
31st Jul 2025344 PMAQI
31st Jul 2025305 PMAQI
31st Jul 2025276 PMAQI
31st Jul 2025237 PMAQI
31st Jul 2025278 PMAQI
31st Jul 2025299 PMAQI
31st Jul 20253110 PMAQI
31st Jul 20252611 PMAQI
1st Aug 20252812 AMAQI
1st Aug 2025301 AMAQI
1st Aug 2025362 AMAQI
1st Aug 2025373 AMAQI
28°C26/31°C
1st Aug 2025364 AMAQI
1st Aug 2025365 AMAQI
1st Aug 2025396 AMAQI
1st Aug 2025387 AMAQI
1st Aug 2025398 AMAQI
1st Aug 2025309 AMAQI
1st Aug 20252810 AMAQI
1st Aug 20253511 AMAQI
1st Aug 20253712 PMAQI
1st Aug 2025301 PMAQI
1st Aug 2025332 PMAQI
1st Aug 2025323 PMAQI
1st Aug 2025414 PMAQI
1st Aug 2025315 PMAQI
1st Aug 2025386 PMAQI
1st Aug 2025247 PMAQI
1st Aug 2025308 PMAQI
1st Aug 2025289 PMAQI
1st Aug 20253010 PMAQI
1st Aug 20252611 PMAQI
2nd Aug 20252912 AMAQI
2nd Aug 2025311 AMAQI
2nd Aug 2025372 AMAQI
2nd Aug 2025373 AMAQI
28°C26/30°C
2nd Aug 2025384 AMAQI
2nd Aug 2025395 AMAQI
2nd Aug 2025406 AMAQI
2nd Aug 2025387 AMAQI
2nd Aug 2025388 AMAQI
2nd Aug 2025319 AMAQI
2nd Aug 20253210 AMAQI
2nd Aug 20253511 AMAQI
2nd Aug 20254312 PMAQI
2nd Aug 2025501 PMAQI
2nd Aug 2025552 PMAQI
2nd Aug 2025543 PMAQI
2nd Aug 2025544 PMAQI
2nd Aug 2025475 PMAQI
2nd Aug 2025546 PMAQI
2nd Aug 2025467 PMAQI
2nd Aug 2025388 PMAQI
2nd Aug 2025349 PMAQI
2nd Aug 20253610 PMAQI
2nd Aug 20254011 PMAQI
3rd Aug 20253512 AMAQI
3rd Aug 2025361 AMAQI
3rd Aug 2025372 AMAQI
3rd Aug 2025373 AMAQI
29°C27/31°C
3rd Aug 2025394 AMAQI
3rd Aug 2025395 AMAQI
3rd Aug 2025386 AMAQI
3rd Aug 2025407 AMAQI
3rd Aug 2025388 AMAQI
3rd Aug 2025439 AMAQI
3rd Aug 20255310 AMAQI
3rd Aug 20255411 AMAQI
3rd Aug 20256112 PMAQI
3rd Aug 2025521 PMAQI
3rd Aug 2025542 PMAQI
3rd Aug 2025493 PMAQI
3rd Aug 2025464 PMAQI
3rd Aug 2025445 PMAQI
3rd Aug 2025446 PMAQI
3rd Aug 2025387 PMAQI
3rd Aug 2025448 PMAQI
3rd Aug 2025429 PMAQI
3rd Aug 20254410 PMAQI
3rd Aug 20254011 PMAQI
4th Aug 20254212 AMAQI
4th Aug 2025371 AMAQI
4th Aug 2025382 AMAQI
4th Aug 2025393 AMAQI
--°C/°C
4th Aug 2025414 AMAQI
4 AM4th Aug 2025435 AMAQI
4th Aug 2025426 AMAQI
4th Aug 2025417 AMAQI
11 AM
6 PM
11 PM
3 AM
--°C/°C
Day time
Avg. Highest Time
12 PM - 1 PM
47AQI
2 hours / Day
60 hours / Month
Avg. Lowest Time
9 AM - 10 AM
39AQI
2 hours / Day
60 hours / Month
In the last 30 days, during the daytime, the highest AQI was between 12 PM to 1 PM (Avg. 47), while the lowest AQI was between 9 AM to 10 AM (Avg. 39).
Night time
Avg. Highest Time
12 AM - 3 AM
44AQI
4 hours / Day
120 hours / Month
Avg. Lowest Time
7 PM - 11 PM
42AQI
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. 44), while the lowest AQI was between 7 PM to 11 PM (Avg. 42).
2025 Days Vs Air Quality
Hirodaiotamachi, Yokohama, Kanagawa, Japan
2025
94%
201
6%
13
Total number of days with different AQI categories in last 215 days in 2025 (150 days remaining)
Good
201 DaysModerate
13 DaysPoor
0 DaysUnhealthy
0 DaysSevere
0 DaysHazardous
0 DaysUnder WHO’s Safe Air Quality Limits: 94%
Health Risk Level:
Very Low
In 2025, 94% of 215 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
Hirodaiotamachi, Yokohama, Kanagawa, 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
27AQI
27AQI
2nd January 2025
34AQI
34AQI
3rd January 2025
24AQI
24AQI
4th January 2025
27AQI
27AQI
5th January 2025
24AQI
24AQI
6th January 2025
53AQI
53AQI
7th January 2025
34AQI
34AQI
8th January 2025
36AQI
36AQI
9th January 2025
33AQI
33AQI
10th January 2025
28AQI
28AQI
11th January 2025
25AQI
25AQI
12th January 2025
27AQI
27AQI
13th January 2025
32AQI
32AQI
14th January 2025
27AQI
27AQI
15th January 2025
34AQI
34AQI
16th January 2025
23AQI
23AQI
17th January 2025
28AQI
28AQI
18th January 2025
25AQI
25AQI
19th January 2025
30AQI
30AQI
20th January 2025
29AQI
29AQI
21st January 2025
31AQI
31AQI
22nd January 2025
39AQI
39AQI
23rd January 2025
40AQI
40AQI
24th January 2025
38AQI
38AQI
25th January 2025
40AQI
40AQI
26th January 2025
33AQI
33AQI
27th January 2025
35AQI
35AQI
28th January 2025
30AQI
30AQI
29th January 2025
31AQI
31AQI
30th January 2025
27AQI
27AQI
31st January 2025
25AQI
25AQI
1st February 2025
22AQI
22AQI
2nd February 2025
24AQI
24AQI
3rd February 2025
32AQI
32AQI
4th February 2025
29AQI
29AQI
5th February 2025
31AQI
31AQI
6th February 2025
28AQI
28AQI
7th February 2025
28AQI
28AQI
8th February 2025
29AQI
29AQI
9th February 2025
28AQI
28AQI
10th February 2025
25AQI
25AQI
11th February 2025
29AQI
29AQI
12th February 2025
29AQI
29AQI
13th February 2025
32AQI
32AQI
14th February 2025
27AQI
27AQI
15th February 2025
29AQI
29AQI
16th February 2025
29AQI
29AQI
17th February 2025
35AQI
35AQI
18th February 2025
29AQI
29AQI
19th February 2025
29AQI
29AQI
20th February 2025
28AQI
28AQI
21st February 2025
28AQI
28AQI
22nd February 2025
29AQI
29AQI
23rd February 2025
30AQI
30AQI
24th February 2025
31AQI
31AQI
25th February 2025
32AQI
32AQI
26th February 2025
34AQI
34AQI
27th February 2025
36AQI
36AQI
28th February 2025
39AQI
39AQI
1st March 2025
56AQI
56AQI
2nd March 2025
43AQI
43AQI
3rd March 2025
39AQI
39AQI
4th March 2025
31AQI
31AQI
5th March 2025
28AQI
28AQI
6th March 2025
30AQI
30AQI
7th March 2025
31AQI
31AQI
8th March 2025
30AQI
30AQI
9th March 2025
34AQI
34AQI
10th March 2025
32AQI
32AQI
11th March 2025
30AQI
30AQI
12th March 2025
36AQI
36AQI
13th March 2025
32AQI
32AQI
14th March 2025
28AQI
28AQI
15th March 2025
24AQI
24AQI
16th March 2025
19AQI
19AQI
17th March 2025
19AQI
19AQI
18th March 2025
16AQI
16AQI
19th March 2025
15AQI
15AQI
20th March 2025
17AQI
17AQI
21st March 2025
24AQI
24AQI
22nd March 2025
27AQI
27AQI
23rd March 2025
32AQI
32AQI
24th March 2025
29AQI
29AQI
25th March 2025
47AQI
47AQI
26th March 2025
60AQI
60AQI
27th March 2025
55AQI
55AQI
28th March 2025
37AQI
37AQI
29th March 2025
31AQI
31AQI
30th March 2025
30AQI
30AQI
31st March 2025
27AQI
27AQI
1st April 2025
21AQI
21AQI
2nd April 2025
20AQI
20AQI
3rd April 2025
17AQI
17AQI
4th April 2025
19AQI
19AQI
5th April 2025
17AQI
17AQI
6th April 2025
15AQI
15AQI
7th April 2025
16AQI
16AQI
8th April 2025
20AQI
20AQI
9th April 2025
19AQI
19AQI
10th April 2025
23AQI
23AQI
11th April 2025
23AQI
23AQI
12th April 2025
21AQI
21AQI
13th April 2025
19AQI
19AQI
14th April 2025
25AQI
25AQI
15th April 2025
21AQI
21AQI
16th April 2025
20AQI
20AQI
17th April 2025
26AQI
26AQI
18th April 2025
28AQI
28AQI
19th April 2025
33AQI
33AQI
20th April 2025
25AQI
25AQI
21st April 2025
23AQI
23AQI
22nd April 2025
21AQI
21AQI
23rd April 2025
16AQI
16AQI
24th April 2025
20AQI
20AQI
25th April 2025
19AQI
19AQI
26th April 2025
21AQI
21AQI
27th April 2025
21AQI
21AQI
28th April 2025
20AQI
20AQI
29th April 2025
15AQI
15AQI
30th April 2025
20AQI
20AQI
1st May 2025
18AQI
18AQI
2nd May 2025
17AQI
17AQI
3rd May 2025
18AQI
18AQI
4th May 2025
25AQI
25AQI
5th May 2025
20AQI
20AQI
6th May 2025
18AQI
18AQI
7th May 2025
16AQI
16AQI
8th May 2025
17AQI
17AQI
9th May 2025
17AQI
17AQI
10th May 2025
14AQI
14AQI
11th May 2025
17AQI
17AQI
12th May 2025
16AQI
16AQI
13th May 2025
21AQI
21AQI
14th May 2025
19AQI
19AQI
15th May 2025
21AQI
21AQI
16th May 2025
21AQI
21AQI
17th May 2025
19AQI
19AQI
18th May 2025
25AQI
25AQI
19th May 2025
28AQI
28AQI
20th May 2025
58AQI
58AQI
21st May 2025
35AQI
35AQI
22nd May 2025
32AQI
32AQI
23rd May 2025
27AQI
27AQI
24th May 2025
25AQI
25AQI
25th May 2025
19AQI
19AQI
26th May 2025
22AQI
22AQI
27th May 2025
25AQI
25AQI
28th May 2025
17AQI
17AQI
29th May 2025
20AQI
20AQI
30th May 2025
15AQI
15AQI
31st May 2025
14AQI
14AQI
1st June 2025
14AQI
14AQI
2nd June 2025
21AQI
21AQI
3rd June 2025
21AQI
21AQI
4th June 2025
18AQI
18AQI
5th June 2025
24AQI
24AQI
6th June 2025
24AQI
24AQI
7th June 2025
37AQI
37AQI
8th June 2025
31AQI
31AQI
9th June 2025
31AQI
31AQI
10th June 2025
25AQI
25AQI
11th June 2025
20AQI
20AQI
12th June 2025
24AQI
24AQI
13th June 2025
21AQI
21AQI
14th June 2025
18AQI
18AQI
15th June 2025
22AQI
22AQI
16th June 2025
23AQI
23AQI
17th June 2025
29AQI
29AQI
18th June 2025
26AQI
26AQI
19th June 2025
27AQI
27AQI
20th June 2025
26AQI
26AQI
21st June 2025
23AQI
23AQI
22nd June 2025
15AQI
15AQI
23rd June 2025
15AQI
15AQI
24th June 2025
16AQI
16AQI
25th June 2025
18AQI
18AQI
26th June 2025
16AQI
16AQI
27th June 2025
19AQI
19AQI
28th June 2025
18AQI
18AQI
29th June 2025
20AQI
20AQI
30th June 2025
30AQI
30AQI
1st July 2025
32AQI
32AQI
2nd July 2025
38AQI
38AQI
3rd July 2025
39AQI
39AQI
4th July 2025
40AQI
40AQI
5th July 2025
46AQI
46AQI
6th July 2025
57AQI
57AQI
7th July 2025
70AQI
70AQI
8th July 2025
70AQI
70AQI
9th July 2025
72AQI
72AQI
10th July 2025
58AQI
58AQI
11th July 2025
54AQI
54AQI
12th July 2025
56AQI
56AQI
13th July 2025
55AQI
55AQI
14th July 2025
48AQI
48AQI
15th July 2025
47AQI
47AQI
16th July 2025
46AQI
46AQI
17th July 2025
46AQI
46AQI
18th July 2025
42AQI
42AQI
19th July 2025
37AQI
37AQI
20th July 2025
35AQI
35AQI
21st July 2025
35AQI
35AQI
22nd July 2025
33AQI
33AQI
23rd July 2025
32AQI
32AQI
24th July 2025
33AQI
33AQI
25th July 2025
29AQI
29AQI
26th July 2025
28AQI
28AQI
27th July 2025
27AQI
27AQI
28th July 2025
28AQI
28AQI
29th July 2025
32AQI
32AQI
30th July 2025
29AQI
29AQI
31st July 2025
30AQI
30AQI
1st August 2025
32AQI
32AQI
2nd August 2025
38AQI
38AQI
31AQI
30AQI
32AQI
21AQI
22AQI
22AQI
43AQI
35AQI
No. of days
Jan.Feb.Mar.Apr.MayJun.Jul.Aug.Sep.Oct.Nov.Dec.Total Days
202529AQI
30
1
28
28
3
30
30
1
30
23
8
2
201
13
Highest AQI recorded in
July43AQI
Lowest AQI recorded in
April21AQI
202434AQI
27
2
28
1
22
7
27
3
30
1
28
2
23
8
31
30
30
1
30
31
337
25
Highest AQI recorded in
March44AQI
Lowest AQI recorded in
September25AQI
202340AQI
21
8
19
9
21
10
19
11
26
5
21
9
23
8
27
4
28
2
30
1
21
5
24
7
280
79
Highest AQI recorded in
April49AQI
Lowest AQI recorded in
August30AQI
202239AQI
26
4
13
6
19
12
19
10
24
7
22
8
19
2
1
26
2
28
3
22
4
30
1
249
59
Highest AQI recorded in
March47AQI
Lowest AQI recorded in
August28AQI
202138AQI
18
11
18
7
24
5
20
2
24
7
27
3
27
4
25
6
29
1
28
3
22
6
24
7
286
62
Highest AQI recorded in
January44AQI
Lowest AQI recorded in
September34AQI
202037AQI
10
3
18
3
18
21
9
29
2
18
13
19
29
2
18
11
19
12
199
55
Highest AQI recorded in
August47AQI
Lowest AQI recorded in
September26AQI
Most & Least Polluted Years Over the Last 6 Years
Most Polluted Year Recorded
2023(Avg.)
40AQILeast Polluted Year Recorded
2025(Avg.)
29AQIHirodaiotamachi's annual 2025 AQI (29) shows an average percentage change of -23.4% (improved AQI) compared to previous years: 2020 (37), 2021 (38), 2022 (39), 2023 (40), 2024 (34).
