Nagaoka, Hamura, Tokyo, 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
Nagaoka, Hamura, Tokyo, Japan
2021
2022
2023
2024
2025
AQI
.
Days
AQI Trends: Highest and Lowest
Highest AQI recorded on
28th Aug 2021
54AQILowest AQI recorded on
8th Aug 2021
10AQISame Day Analysis (3rd August ):
On this day, AQI across the 5 years varied significantly: 2025 ranks 1st highest AQI at 46 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
Nagaoka, Hamura, Tokyo, Japan
AQI
Day
Night
.
4 AM4th Aug 2025
6 PM
3 AM5th Aug 2025
Day time
Avg. Highest Time
12AMNaNth undefined
AQI
Avg. Lowest Time
12AMNaNth undefined
AQI
Night time
Avg. Highest Time
5PM4th Aug
92AQI
Avg. Lowest Time
2AM5th Aug
41AQI
In the last 24 hours,
Nagaoka's AQI reached its highest point of 92 at 5 PM during the Night, while the lowest point, undefined, was recorded at 3 AM during the Night between 4th Aug and 5th Aug 2025.
Day & Night AQI Trend : Jul - Aug 2025
Nagaoka, Hamura, Tokyo, 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 2025484 AMAQI
6th Jul 2025505 AMAQI
6th Jul 2025506 AMAQI
6th Jul 2025507 AMAQI
6th Jul 2025518 AMAQI
6th Jul 2025539 AMAQI
6th Jul 20255810 AMAQI
6th Jul 20256011 AMAQI
6th Jul 20256012 PMAQI
6th Jul 2025621 PMAQI
6th Jul 2025632 PMAQI
6th Jul 2025613 PMAQI
6th Jul 2025594 PMAQI
6th Jul 2025575 PMAQI
6th Jul 2025586 PMAQI
6th Jul 2025747 PMAQI
6th Jul 2025808 PMAQI
6th Jul 2025689 PMAQI
6th Jul 20256810 PMAQI
6th Jul 20256811 PMAQI
7th Jul 20256712 AMAQI
7th Jul 2025591 AMAQI
7th Jul 2025512 AMAQI
7th Jul 2025503 AMAQI
29°C26/35°C
7th Jul 2025524 AMAQI
7th Jul 2025535 AMAQI
7th Jul 2025536 AMAQI
7th Jul 2025537 AMAQI
7th Jul 2025538 AMAQI
7th Jul 2025879 AMAQI
7th Jul 20259210 AMAQI
7th Jul 20258911 AMAQI
7th Jul 20258412 PMAQI
7th Jul 2025831 PMAQI
7th Jul 2025802 PMAQI
7th Jul 2025843 PMAQI
7th Jul 2025904 PMAQI
7th Jul 2025915 PMAQI
7th Jul 2025966 PMAQI
7th Jul 20251047 PMAQI
7th Jul 2025978 PMAQI
7th Jul 2025779 PMAQI
7th Jul 20258010 PMAQI
7th Jul 20257811 PMAQI
8th Jul 20257812 AMAQI
8th Jul 2025671 AMAQI
8th Jul 2025562 AMAQI
8th Jul 2025553 AMAQI
30°C26/34°C
8th Jul 2025584 AMAQI
8th Jul 2025625 AMAQI
8th Jul 2025626 AMAQI
8th Jul 2025627 AMAQI
8th Jul 2025628 AMAQI
8th Jul 20251109 AMAQI
8th Jul 202512010 AMAQI
8th Jul 202510711 AMAQI
8th Jul 202510012 PMAQI
8th Jul 2025901 PMAQI
8th Jul 2025812 PMAQI
8th Jul 2025783 PMAQI
8th Jul 2025774 PMAQI
8th Jul 2025745 PMAQI
8th Jul 2025766 PMAQI
8th Jul 2025837 PMAQI
8th Jul 2025848 PMAQI
8th Jul 2025769 PMAQI
8th Jul 20257810 PMAQI
8th Jul 20258011 PMAQI
9th Jul 20257912 AMAQI
9th Jul 2025751 AMAQI
9th Jul 2025632 AMAQI
9th Jul 2025633 AMAQI
29°C26/34°C
9th Jul 2025664 AMAQI
9th Jul 2025715 AMAQI
9th Jul 2025716 AMAQI
9th Jul 2025727 AMAQI
9th Jul 2025718 AMAQI
9th Jul 2025809 AMAQI
9th Jul 20258610 AMAQI
9th Jul 20258211 AMAQI
9th Jul 20258812 PMAQI
9th Jul 2025941 PMAQI
9th Jul 20251002 PMAQI
9th Jul 20251033 PMAQI
9th Jul 2025974 PMAQI
9th Jul 2025865 PMAQI
9th Jul 20251006 PMAQI
9th Jul 2025857 PMAQI
9th Jul 2025738 PMAQI
9th Jul 2025689 PMAQI
9th Jul 20256510 PMAQI
9th Jul 20256311 PMAQI
10th Jul 20256212 AMAQI
10th Jul 2025661 AMAQI
10th Jul 2025702 AMAQI
10th Jul 2025703 AMAQI
29°C26/34°C
10th Jul 2025724 AMAQI
10th Jul 2025755 AMAQI
10th Jul 2025756 AMAQI
10th Jul 2025747 AMAQI
10th Jul 2025758 AMAQI
10th Jul 2025759 AMAQI
10th Jul 20257710 AMAQI
10th Jul 20257711 AMAQI
10th Jul 20257612 PMAQI
10th Jul 2025741 PMAQI
10th Jul 2025642 PMAQI
10th Jul 2025483 PMAQI
10th Jul 2025404 PMAQI
10th Jul 2025325 PMAQI
10th Jul 2025306 PMAQI
10th Jul 2025337 PMAQI
10th Jul 2025438 PMAQI
10th Jul 2025569 PMAQI
10th Jul 20255610 PMAQI
10th Jul 20255511 PMAQI
11th Jul 20255612 AMAQI
11th Jul 2025621 AMAQI
11th Jul 2025702 AMAQI
11th Jul 2025703 AMAQI
28°C23/34°C
11th Jul 2025714 AMAQI
11th Jul 2025715 AMAQI
11th Jul 2025706 AMAQI
11th Jul 2025707 AMAQI
11th Jul 2025708 AMAQI
11th Jul 2025309 AMAQI
11th Jul 20251610 AMAQI
11th Jul 20251811 AMAQI
11th Jul 20252212 PMAQI
11th Jul 2025291 PMAQI
11th Jul 2025322 PMAQI
11th Jul 2025343 PMAQI
11th Jul 2025314 PMAQI
11th Jul 2025315 PMAQI
11th Jul 2025296 PMAQI
11th Jul 2025297 PMAQI
11th Jul 2025408 PMAQI
11th Jul 2025559 PMAQI
11th Jul 20255610 PMAQI
11th Jul 20255511 PMAQI
12th Jul 20255512 AMAQI
12th Jul 2025591 AMAQI
12th Jul 2025672 AMAQI
12th Jul 2025673 AMAQI
23°C21/24°C
12th Jul 2025654 AMAQI
12th Jul 2025625 AMAQI
12th Jul 2025616 AMAQI
12th Jul 2025627 AMAQI
12th Jul 2025618 AMAQI
12th Jul 2025389 AMAQI
12th Jul 20253310 AMAQI
12th Jul 20253711 AMAQI
12th Jul 20253812 PMAQI
12th Jul 2025401 PMAQI
12th Jul 2025452 PMAQI
12th Jul 2025463 PMAQI
12th Jul 2025474 PMAQI
12th Jul 2025515 PMAQI
12th Jul 2025526 PMAQI
12th Jul 2025507 PMAQI
12th Jul 2025538 PMAQI
12th Jul 2025579 PMAQI
12th Jul 20255510 PMAQI
12th Jul 20255511 PMAQI
13th Jul 20255412 AMAQI
13th Jul 2025571 AMAQI
13th Jul 2025622 AMAQI
13th Jul 2025623 AMAQI
24°C20/28°C
13th Jul 2025614 AMAQI
13th Jul 2025585 AMAQI
13th Jul 2025596 AMAQI
13th Jul 2025587 AMAQI
13th Jul 2025598 AMAQI
13th Jul 2025499 AMAQI
13th Jul 20254310 AMAQI
13th Jul 20254511 AMAQI
13th Jul 20254612 PMAQI
13th Jul 2025521 PMAQI
13th Jul 2025502 PMAQI
13th Jul 2025503 PMAQI
13th Jul 2025404 PMAQI
13th Jul 2025365 PMAQI
13th Jul 2025356 PMAQI
13th Jul 2025347 PMAQI
13th Jul 2025438 PMAQI
13th Jul 2025519 PMAQI
13th Jul 20254910 PMAQI
13th Jul 20255111 PMAQI
14th Jul 20255012 AMAQI
14th Jul 2025551 AMAQI
14th Jul 2025592 AMAQI
14th Jul 2025583 AMAQI
26°C23/30°C
14th Jul 2025584 AMAQI
14th Jul 2025575 AMAQI
14th Jul 2025576 AMAQI
14th Jul 2025577 AMAQI
14th Jul 2025578 AMAQI
14th Jul 2025279 AMAQI
14th Jul 20251710 AMAQI
14th Jul 20251611 AMAQI
14th Jul 20251612 PMAQI
14th Jul 2025201 PMAQI
14th Jul 2025202 PMAQI
14th Jul 2025283 PMAQI
14th Jul 2025204 PMAQI
14th Jul 2025225 PMAQI
14th Jul 2025246 PMAQI
14th Jul 2025247 PMAQI
14th Jul 2025298 PMAQI
14th Jul 2025449 PMAQI
14th Jul 20254510 PMAQI
14th Jul 20254411 PMAQI
15th Jul 20254212 AMAQI
15th Jul 2025481 AMAQI
15th Jul 2025562 AMAQI
15th Jul 2025563 AMAQI
25°C23/29°C
15th Jul 2025554 AMAQI
15th Jul 2025535 AMAQI
15th Jul 2025536 AMAQI
15th Jul 2025537 AMAQI
15th Jul 2025538 AMAQI
15th Jul 2025259 AMAQI
15th Jul 20251410 AMAQI
15th Jul 20251611 AMAQI
15th Jul 20251812 PMAQI
15th Jul 2025241 PMAQI
15th Jul 2025232 PMAQI
15th Jul 2025233 PMAQI
15th Jul 2025234 PMAQI
15th Jul 2025225 PMAQI
15th Jul 2025256 PMAQI
15th Jul 2025227 PMAQI
15th Jul 2025308 PMAQI
15th Jul 2025389 PMAQI
15th Jul 20253710 PMAQI
15th Jul 20253711 PMAQI
16th Jul 20253912 AMAQI
16th Jul 2025461 AMAQI
16th Jul 2025532 AMAQI
16th Jul 2025533 AMAQI
27°C25/31°C
16th Jul 2025524 AMAQI
16th Jul 2025485 AMAQI
16th Jul 2025506 AMAQI
16th Jul 2025497 AMAQI
16th Jul 2025498 AMAQI
16th Jul 2025539 AMAQI
16th Jul 20255710 AMAQI
16th Jul 20255211 AMAQI
16th Jul 20253912 PMAQI
16th Jul 2025281 PMAQI
16th Jul 2025232 PMAQI
16th Jul 2025233 PMAQI
16th Jul 2025264 PMAQI
16th Jul 2025305 PMAQI
16th Jul 2025246 PMAQI
16th Jul 2025227 PMAQI
16th Jul 2025258 PMAQI
16th Jul 2025369 PMAQI
16th Jul 20253710 PMAQI
16th Jul 20253611 PMAQI
17th Jul 20253412 AMAQI
17th Jul 2025421 AMAQI
17th Jul 2025502 AMAQI
17th Jul 2025493 AMAQI
27°C23/31°C
17th Jul 2025504 AMAQI
17th Jul 2025485 AMAQI
17th Jul 2025486 AMAQI
17th Jul 2025487 AMAQI
17th Jul 2025488 AMAQI
17th Jul 2025249 AMAQI
17th Jul 20252210 AMAQI
17th Jul 20252911 AMAQI
17th Jul 20253112 PMAQI
17th Jul 2025291 PMAQI
17th Jul 2025322 PMAQI
17th Jul 2025323 PMAQI
17th Jul 2025284 PMAQI
17th Jul 2025305 PMAQI
17th Jul 2025336 PMAQI
17th Jul 2025367 PMAQI
17th Jul 2025408 PMAQI
17th Jul 2025439 PMAQI
17th Jul 20254310 PMAQI
17th Jul 20254111 PMAQI
18th Jul 20254112 AMAQI
18th Jul 2025431 AMAQI
18th Jul 2025482 AMAQI
18th Jul 2025483 AMAQI
27°C24/32°C
18th Jul 2025464 AMAQI
18th Jul 2025435 AMAQI
18th Jul 2025426 AMAQI
18th Jul 2025437 AMAQI
18th Jul 2025438 AMAQI
18th Jul 2025309 AMAQI
18th Jul 20252810 AMAQI
18th Jul 20252711 AMAQI
18th Jul 20252912 PMAQI
18th Jul 2025291 PMAQI
18th Jul 2025312 PMAQI
18th Jul 2025283 PMAQI
18th Jul 2025274 PMAQI
18th Jul 2025255 PMAQI
18th Jul 2025256 PMAQI
18th Jul 2025267 PMAQI
18th Jul 2025308 PMAQI
18th Jul 2025379 PMAQI
18th Jul 20253610 PMAQI
18th Jul 20253611 PMAQI
19th Jul 20253612 AMAQI
19th Jul 2025391 AMAQI
19th Jul 2025462 AMAQI
19th Jul 2025453 AMAQI
27°C23/32°C
19th Jul 2025444 AMAQI
19th Jul 2025425 AMAQI
19th Jul 2025426 AMAQI
19th Jul 2025427 AMAQI
19th Jul 2025418 AMAQI
19th Jul 2025299 AMAQI
19th Jul 20253310 AMAQI
19th Jul 20253311 AMAQI
19th Jul 20252312 PMAQI
19th Jul 2025251 PMAQI
19th Jul 2025242 PMAQI
19th Jul 2025243 PMAQI
19th Jul 2025244 PMAQI
19th Jul 2025255 PMAQI
19th Jul 2025226 PMAQI
19th Jul 2025267 PMAQI
19th Jul 2025318 PMAQI
19th Jul 2025349 PMAQI
19th Jul 20253210 PMAQI
19th Jul 20253311 PMAQI
20th Jul 20253412 AMAQI
20th Jul 2025361 AMAQI
20th Jul 2025422 AMAQI
20th Jul 2025423 AMAQI
28°C24/33°C
20th Jul 2025414 AMAQI
20th Jul 2025405 AMAQI
20th Jul 2025396 AMAQI
20th Jul 2025397 AMAQI
20th Jul 2025398 AMAQI
20th Jul 2025329 AMAQI
20th Jul 20252910 AMAQI
20th Jul 20252711 AMAQI
20th Jul 20253312 PMAQI
20th Jul 2025321 PMAQI
20th Jul 2025302 PMAQI
20th Jul 2025313 PMAQI
20th Jul 2025354 PMAQI
20th Jul 2025305 PMAQI
20th Jul 2025296 PMAQI
20th Jul 2025287 PMAQI
20th Jul 2025348 PMAQI
20th Jul 2025369 PMAQI
20th Jul 20253410 PMAQI
20th Jul 20253411 PMAQI
21st Jul 20253312 AMAQI
21st Jul 2025361 AMAQI
21st Jul 2025402 AMAQI
21st Jul 2025403 AMAQI
29°C24/34°C
21st Jul 2025394 AMAQI
21st Jul 2025385 AMAQI
21st Jul 2025386 AMAQI
21st Jul 2025387 AMAQI
21st Jul 2025388 AMAQI
21st Jul 2025339 AMAQI
21st Jul 20254010 AMAQI
21st Jul 20254011 AMAQI
21st Jul 20254412 PMAQI
21st Jul 2025451 PMAQI
21st Jul 2025482 PMAQI
21st Jul 2025483 PMAQI
21st Jul 2025414 PMAQI
21st Jul 2025345 PMAQI
21st Jul 2025296 PMAQI
21st Jul 2025327 PMAQI
21st Jul 2025348 PMAQI
21st Jul 2025349 PMAQI
21st Jul 20253410 PMAQI
21st Jul 20253311 PMAQI
22nd Jul 20253312 AMAQI
22nd Jul 2025341 AMAQI
22nd Jul 2025382 AMAQI
22nd Jul 2025383 AMAQI
30°C26/36°C
22nd Jul 2025384 AMAQI
22nd Jul 2025405 AMAQI
22nd Jul 2025396 AMAQI
22nd Jul 2025397 AMAQI
22nd Jul 2025398 AMAQI
22nd Jul 2025409 AMAQI
22nd Jul 20255110 AMAQI
22nd Jul 20255011 AMAQI
22nd Jul 20255212 PMAQI
22nd Jul 2025521 PMAQI
22nd Jul 2025562 PMAQI
22nd Jul 2025593 PMAQI
22nd Jul 2025554 PMAQI
22nd Jul 2025505 PMAQI
22nd Jul 2025406 PMAQI
22nd Jul 2025367 PMAQI
22nd Jul 2025318 PMAQI
22nd Jul 2025329 PMAQI
22nd Jul 20253210 PMAQI
22nd Jul 20253411 PMAQI
23rd Jul 20253612 AMAQI
23rd Jul 2025381 AMAQI
23rd Jul 2025382 AMAQI
23rd Jul 2025383 AMAQI
30°C26/36°C
23rd Jul 2025394 AMAQI
23rd Jul 2025415 AMAQI
23rd Jul 2025426 AMAQI
23rd Jul 2025427 AMAQI
23rd Jul 2025428 AMAQI
23rd Jul 2025499 AMAQI
23rd Jul 20255410 AMAQI
23rd Jul 20255811 AMAQI
23rd Jul 20256312 PMAQI
23rd Jul 2025641 PMAQI
23rd Jul 2025632 PMAQI
23rd Jul 2025633 PMAQI
23rd Jul 2025594 PMAQI
23rd Jul 2025555 PMAQI
23rd Jul 2025516 PMAQI
23rd Jul 2025467 PMAQI
23rd Jul 2025418 PMAQI
23rd Jul 2025389 PMAQI
23rd Jul 20253610 PMAQI
23rd Jul 20253611 PMAQI
24th Jul 20253712 AMAQI
24th Jul 2025421 AMAQI
24th Jul 2025402 AMAQI
24th Jul 2025403 AMAQI
30°C26/36°C
24th Jul 2025424 AMAQI
24th Jul 2025465 AMAQI
24th Jul 2025456 AMAQI
24th Jul 2025477 AMAQI
24th Jul 2025468 AMAQI
24th Jul 2025509 AMAQI
24th Jul 20255410 AMAQI
24th Jul 20255711 AMAQI
24th Jul 20256112 PMAQI
24th Jul 2025591 PMAQI
24th Jul 2025612 PMAQI
24th Jul 2025603 PMAQI
24th Jul 2025604 PMAQI
24th Jul 2025545 PMAQI
24th Jul 2025506 PMAQI
24th Jul 2025437 PMAQI
24th Jul 2025378 PMAQI
24th Jul 2025379 PMAQI
24th Jul 20253610 PMAQI
24th Jul 20254211 PMAQI
25th Jul 20254512 AMAQI
25th Jul 2025451 AMAQI
25th Jul 2025432 AMAQI
25th Jul 2025443 AMAQI
30°C26/36°C
25th Jul 2025454 AMAQI
25th Jul 2025485 AMAQI
25th Jul 2025476 AMAQI
25th Jul 2025477 AMAQI
25th Jul 2025488 AMAQI
25th Jul 2025529 AMAQI
25th Jul 20255910 AMAQI
25th Jul 20256011 AMAQI
25th Jul 20256012 PMAQI
25th Jul 2025601 PMAQI
25th Jul 2025582 PMAQI
25th Jul 2025513 PMAQI
25th Jul 2025444 PMAQI
25th Jul 2025445 PMAQI
25th Jul 2025436 PMAQI
25th Jul 2025327 PMAQI
25th Jul 2025358 PMAQI
25th Jul 2025409 PMAQI
25th Jul 20254210 PMAQI
25th Jul 20254411 PMAQI
26th Jul 20254212 AMAQI
26th Jul 2025451 AMAQI
26th Jul 2025462 AMAQI
26th Jul 2025463 AMAQI
30°C26/36°C
26th Jul 2025494 AMAQI
26th Jul 2025505 AMAQI
26th Jul 2025506 AMAQI
26th Jul 2025507 AMAQI
26th Jul 2025518 AMAQI
26th Jul 2025489 AMAQI
26th Jul 20255110 AMAQI
26th Jul 20254911 AMAQI
26th Jul 20255512 PMAQI
26th Jul 2025541 PMAQI
26th Jul 2025532 PMAQI
26th Jul 2025463 PMAQI
26th Jul 2025404 PMAQI
26th Jul 2025365 PMAQI
26th Jul 2025366 PMAQI
26th Jul 2025347 PMAQI
26th Jul 2025348 PMAQI
26th Jul 2025389 PMAQI
26th Jul 20254010 PMAQI
26th Jul 20253911 PMAQI
27th Jul 20254112 AMAQI
27th Jul 2025411 AMAQI
27th Jul 2025472 AMAQI
27th Jul 2025473 AMAQI
31°C26/36°C
27th Jul 2025484 AMAQI
27th Jul 2025505 AMAQI
27th Jul 2025506 AMAQI
27th Jul 2025507 AMAQI
27th Jul 2025508 AMAQI
27th Jul 2025429 AMAQI
27th Jul 20254010 AMAQI
27th Jul 20254711 AMAQI
27th Jul 20254612 PMAQI
27th Jul 2025481 PMAQI
27th Jul 2025442 PMAQI
27th Jul 2025423 PMAQI
27th Jul 2025364 PMAQI
27th Jul 2025325 PMAQI
27th Jul 2025276 PMAQI
27th Jul 2025257 PMAQI
27th Jul 2025318 PMAQI
27th Jul 2025369 PMAQI
27th Jul 20253710 PMAQI
27th Jul 20253511 PMAQI
28th Jul 20253412 AMAQI
28th Jul 2025401 AMAQI
28th Jul 2025482 AMAQI
28th Jul 2025473 AMAQI
30°C26/36°C
28th Jul 2025464 AMAQI
28th Jul 2025465 AMAQI
28th Jul 2025476 AMAQI
28th Jul 2025467 AMAQI
28th Jul 2025468 AMAQI
28th Jul 2025389 AMAQI
28th Jul 20254410 AMAQI
28th Jul 20254411 AMAQI
28th Jul 20254812 PMAQI
28th Jul 2025521 PMAQI
28th Jul 2025532 PMAQI
28th Jul 2025553 PMAQI
28th Jul 2025574 PMAQI
28th Jul 2025555 PMAQI
28th Jul 2025516 PMAQI
28th Jul 2025507 PMAQI
28th Jul 2025488 PMAQI
28th Jul 2025429 PMAQI
28th Jul 20254210 PMAQI
28th Jul 20254011 PMAQI
29th Jul 20253912 AMAQI
29th Jul 2025411 AMAQI
29th Jul 2025432 AMAQI
29th Jul 2025423 AMAQI
30°C26/36°C
29th Jul 2025444 AMAQI
29th Jul 2025455 AMAQI
29th Jul 2025456 AMAQI
29th Jul 2025457 AMAQI
29th Jul 2025468 AMAQI
29th Jul 2025469 AMAQI
29th Jul 20255410 AMAQI
29th Jul 20255411 AMAQI
29th Jul 20255312 PMAQI
29th Jul 2025521 PMAQI
29th Jul 2025522 PMAQI
29th Jul 2025523 PMAQI
29th Jul 2025524 PMAQI
29th Jul 2025565 PMAQI
29th Jul 2025586 PMAQI
29th Jul 2025517 PMAQI
29th Jul 2025418 PMAQI
29th Jul 2025389 PMAQI
29th Jul 20253410 PMAQI
29th Jul 20253411 PMAQI
30th Jul 20253412 AMAQI
30th Jul 2025361 AMAQI
30th Jul 2025422 AMAQI
30th Jul 2025423 AMAQI
30°C25/37°C
30th Jul 2025444 AMAQI
30th Jul 2025465 AMAQI
30th Jul 2025466 AMAQI
30th Jul 2025467 AMAQI
30th Jul 2025458 AMAQI
30th Jul 2025249 AMAQI
30th Jul 20251810 AMAQI
30th Jul 20251911 AMAQI
30th Jul 20252312 PMAQI
30th Jul 2025301 PMAQI
30th Jul 2025332 PMAQI
30th Jul 2025303 PMAQI
30th Jul 2025354 PMAQI
30th Jul 2025385 PMAQI
30th Jul 2025326 PMAQI
30th Jul 2025327 PMAQI
30th Jul 2025348 PMAQI
30th Jul 2025379 PMAQI
30th Jul 20253810 PMAQI
30th Jul 20254011 PMAQI
31st Jul 20254012 AMAQI
31st Jul 2025391 AMAQI
31st Jul 2025442 AMAQI
31st Jul 2025423 AMAQI
30°C25/36°C
31st Jul 2025424 AMAQI
31st Jul 2025425 AMAQI
31st Jul 2025426 AMAQI
31st Jul 2025427 AMAQI
31st Jul 2025428 AMAQI
31st Jul 2025429 AMAQI
31st Jul 20254210 AMAQI
31st Jul 20254211 AMAQI
31st Jul 20254312 PMAQI
31st Jul 2025441 PMAQI
31st Jul 2025452 PMAQI
31st Jul 2025463 PMAQI
31st Jul 2025364 PMAQI
31st Jul 2025365 PMAQI
31st Jul 2025326 PMAQI
31st Jul 2025297 PMAQI
31st Jul 2025308 PMAQI
31st Jul 2025329 PMAQI
31st Jul 20253110 PMAQI
31st Jul 20253011 PMAQI
1st Aug 20253012 AMAQI
1st Aug 2025361 AMAQI
1st Aug 2025342 AMAQI
1st Aug 2025353 AMAQI
28°C24/34°C
1st Aug 2025354 AMAQI
1st Aug 2025345 AMAQI
1st Aug 2025366 AMAQI
1st Aug 2025347 AMAQI
1st Aug 2025368 AMAQI
1st Aug 2025379 AMAQI
1st Aug 20252810 AMAQI
1st Aug 20254611 AMAQI
1st Aug 20254612 PMAQI
1st Aug 2025461 PMAQI
1st Aug 2025362 PMAQI
1st Aug 2025323 PMAQI
1st Aug 2025434 PMAQI
1st Aug 2025395 PMAQI
1st Aug 2025406 PMAQI
1st Aug 2025327 PMAQI
1st Aug 2025318 PMAQI
1st Aug 2025339 PMAQI
1st Aug 20253210 PMAQI
1st Aug 20253011 PMAQI
2nd Aug 20253112 AMAQI
2nd Aug 2025301 AMAQI
2nd Aug 2025362 AMAQI
2nd Aug 2025373 AMAQI
26°C24/31°C
2nd Aug 2025394 AMAQI
2nd Aug 2025385 AMAQI
2nd Aug 2025406 AMAQI
2nd Aug 2025387 AMAQI
2nd Aug 2025398 AMAQI
2nd Aug 2025389 AMAQI
2nd Aug 20253410 AMAQI
2nd Aug 20254311 AMAQI
2nd Aug 20253212 PMAQI
2nd Aug 2025401 PMAQI
2nd Aug 2025562 PMAQI
2nd Aug 2025563 PMAQI
2nd Aug 2025534 PMAQI
2nd Aug 2025555 PMAQI
2nd Aug 2025566 PMAQI
2nd Aug 2025547 PMAQI
2nd Aug 2025428 PMAQI
2nd Aug 2025409 PMAQI
2nd Aug 20253710 PMAQI
2nd Aug 20254711 PMAQI
3rd Aug 20253512 AMAQI
3rd Aug 2025361 AMAQI
3rd Aug 2025382 AMAQI
3rd Aug 2025383 AMAQI
30°C25/37°C
3rd Aug 2025404 AMAQI
3rd Aug 2025395 AMAQI
3rd Aug 2025396 AMAQI
3rd Aug 2025407 AMAQI
3rd Aug 2025398 AMAQI
3rd Aug 2025439 AMAQI
3rd Aug 20255510 AMAQI
3rd Aug 20255611 AMAQI
3rd Aug 20256012 PMAQI
3rd Aug 2025541 PMAQI
3rd Aug 2025582 PMAQI
3rd Aug 2025543 PMAQI
3rd Aug 2025554 PMAQI
3rd Aug 2025565 PMAQI
3rd Aug 2025556 PMAQI
3rd Aug 2025547 PMAQI
3rd Aug 2025528 PMAQI
3rd Aug 2025429 PMAQI
3rd Aug 20254410 PMAQI
3rd Aug 20254311 PMAQI
4th Aug 20253612 AMAQI
4th Aug 2025371 AMAQI
4th Aug 2025382 AMAQI
4th Aug 2025403 AMAQI
30°C26/36°C
4th Aug 2025464 AMAQI
4th Aug 2025445 AMAQI
4th Aug 2025436 AMAQI
4th Aug 2025437 AMAQI
4th Aug 2025438 AMAQI
4th Aug 2025549 AMAQI
4th Aug 20256410 AMAQI
4th Aug 20257711 AMAQI
4th Aug 20258212 PMAQI
4th Aug 2025851 PMAQI
4th Aug 2025882 PMAQI
4th Aug 2025823 PMAQI
4th Aug 2025914 PMAQI
4th Aug 2025925 PMAQI
4th Aug 2025846 PMAQI
4th Aug 2025777 PMAQI
4th Aug 2025668 PMAQI
4th Aug 2025609 PMAQI
4th Aug 20255510 PMAQI
4th Aug 20255211 PMAQI
5th Aug 20255312 AMAQI
5th Aug 2025451 AMAQI
5th Aug 2025412 AMAQI
--°C/°C
4 AM
11 AM
6 PM
11 PM
3 AM
--°C/°C
Day time
Avg. Highest Time
4 AM - 6 PM
48AQI
15 hours / Day
450 hours / Month
Avg. Lowest Time
9 AM - 6 PM
48AQI
10 hours / Day
300 hours / Month
In the last 30 days, during the daytime, the highest AQI was between 4 AM to 6 PM (Avg. 48), while the lowest AQI was between 9 AM to 6 PM (Avg. 48).
Night time
Avg. Highest Time
12 AM - 3 AM
47AQI
4 hours / Day
120 hours / Month
Avg. Lowest Time
7 PM - 11 PM
44AQI
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. 47), while the lowest AQI was between 7 PM to 11 PM (Avg. 44).
2025 Days Vs Air Quality
Nagaoka, Hamura, Tokyo, Japan
2025
95%
205
5%
10
Total number of days with different AQI categories in last 216 days in 2025 (149 days remaining)
Good
205 DaysModerate
10 DaysPoor
0 DaysUnhealthy
0 DaysSevere
0 DaysHazardous
0 DaysUnder WHO’s Safe Air Quality Limits: 95%
Health Risk Level:
Very Low
In 2025, 95% of 216 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
Nagaoka, Hamura, Tokyo, 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
26AQI
26AQI
2nd January 2025
26AQI
26AQI
3rd January 2025
23AQI
23AQI
4th January 2025
24AQI
24AQI
5th January 2025
21AQI
21AQI
6th January 2025
25AQI
25AQI
7th January 2025
23AQI
23AQI
8th January 2025
28AQI
28AQI
9th January 2025
25AQI
25AQI
10th January 2025
24AQI
24AQI
11th January 2025
24AQI
24AQI
12th January 2025
25AQI
25AQI
13th January 2025
26AQI
26AQI
14th January 2025
24AQI
24AQI
15th January 2025
28AQI
28AQI
16th January 2025
23AQI
23AQI
17th January 2025
25AQI
25AQI
18th January 2025
25AQI
25AQI
19th January 2025
28AQI
28AQI
20th January 2025
27AQI
27AQI
21st January 2025
30AQI
30AQI
22nd January 2025
29AQI
29AQI
23rd January 2025
31AQI
31AQI
24th January 2025
34AQI
34AQI
25th January 2025
32AQI
32AQI
26th January 2025
32AQI
32AQI
27th January 2025
22AQI
22AQI
28th January 2025
26AQI
26AQI
29th January 2025
23AQI
23AQI
30th January 2025
27AQI
27AQI
31st January 2025
25AQI
25AQI
1st February 2025
29AQI
29AQI
2nd February 2025
30AQI
30AQI
3rd February 2025
26AQI
26AQI
4th February 2025
30AQI
30AQI
5th February 2025
30AQI
30AQI
6th February 2025
28AQI
28AQI
7th February 2025
29AQI
29AQI
8th February 2025
29AQI
29AQI
9th February 2025
28AQI
28AQI
10th February 2025
27AQI
27AQI
11th February 2025
29AQI
29AQI
12th February 2025
27AQI
27AQI
13th February 2025
33AQI
33AQI
14th February 2025
28AQI
28AQI
15th February 2025
32AQI
32AQI
16th February 2025
32AQI
32AQI
17th February 2025
34AQI
34AQI
18th February 2025
30AQI
30AQI
19th February 2025
30AQI
30AQI
20th February 2025
29AQI
29AQI
21st February 2025
30AQI
30AQI
22nd February 2025
28AQI
28AQI
23rd February 2025
32AQI
32AQI
24th February 2025
31AQI
31AQI
25th February 2025
32AQI
32AQI
26th February 2025
34AQI
34AQI
27th February 2025
37AQI
37AQI
28th February 2025
39AQI
39AQI
1st March 2025
45AQI
45AQI
2nd March 2025
44AQI
44AQI
3rd March 2025
34AQI
34AQI
4th March 2025
32AQI
32AQI
5th March 2025
25AQI
25AQI
6th March 2025
30AQI
30AQI
7th March 2025
32AQI
32AQI
8th March 2025
32AQI
32AQI
9th March 2025
35AQI
35AQI
10th March 2025
33AQI
33AQI
11th March 2025
33AQI
33AQI
12th March 2025
29AQI
29AQI
13th March 2025
34AQI
34AQI
14th March 2025
23AQI
23AQI
15th March 2025
21AQI
21AQI
16th March 2025
17AQI
17AQI
17th March 2025
16AQI
16AQI
18th March 2025
17AQI
17AQI
19th March 2025
14AQI
14AQI
20th March 2025
18AQI
18AQI
21st March 2025
25AQI
25AQI
22nd March 2025
35AQI
35AQI
23rd March 2025
40AQI
40AQI
24th March 2025
42AQI
42AQI
25th March 2025
66AQI
66AQI
26th March 2025
74AQI
74AQI
27th March 2025
66AQI
66AQI
28th March 2025
45AQI
45AQI
29th March 2025
34AQI
34AQI
30th March 2025
39AQI
39AQI
31st March 2025
33AQI
33AQI
1st April 2025
25AQI
25AQI
2nd April 2025
21AQI
21AQI
3rd April 2025
20AQI
20AQI
4th April 2025
19AQI
19AQI
5th April 2025
22AQI
22AQI
6th April 2025
17AQI
17AQI
7th April 2025
19AQI
19AQI
8th April 2025
25AQI
25AQI
9th April 2025
21AQI
21AQI
10th April 2025
32AQI
32AQI
11th April 2025
29AQI
29AQI
12th April 2025
30AQI
30AQI
13th April 2025
25AQI
25AQI
14th April 2025
27AQI
27AQI
15th April 2025
23AQI
23AQI
16th April 2025
24AQI
24AQI
17th April 2025
35AQI
35AQI
18th April 2025
40AQI
40AQI
19th April 2025
49AQI
49AQI
20th April 2025
43AQI
43AQI
21st April 2025
34AQI
34AQI
22nd April 2025
34AQI
34AQI
23rd April 2025
23AQI
23AQI
24th April 2025
25AQI
25AQI
25th April 2025
29AQI
29AQI
26th April 2025
33AQI
33AQI
27th April 2025
34AQI
34AQI
28th April 2025
32AQI
32AQI
29th April 2025
26AQI
26AQI
30th April 2025
31AQI
31AQI
1st May 2025
27AQI
27AQI
2nd May 2025
23AQI
23AQI
3rd May 2025
21AQI
21AQI
4th May 2025
23AQI
23AQI
5th May 2025
19AQI
19AQI
6th May 2025
20AQI
20AQI
7th May 2025
16AQI
16AQI
8th May 2025
19AQI
19AQI
9th May 2025
18AQI
18AQI
10th May 2025
16AQI
16AQI
11th May 2025
17AQI
17AQI
12th May 2025
17AQI
17AQI
13th May 2025
22AQI
22AQI
14th May 2025
21AQI
21AQI
15th May 2025
23AQI
23AQI
16th May 2025
25AQI
25AQI
17th May 2025
21AQI
21AQI
18th May 2025
26AQI
26AQI
19th May 2025
27AQI
27AQI
20th May 2025
41AQI
41AQI
21st May 2025
43AQI
43AQI
22nd May 2025
35AQI
35AQI
23rd May 2025
33AQI
33AQI
24th May 2025
31AQI
31AQI
25th May 2025
24AQI
24AQI
26th May 2025
26AQI
26AQI
27th May 2025
25AQI
25AQI
28th May 2025
21AQI
21AQI
29th May 2025
20AQI
20AQI
30th May 2025
17AQI
17AQI
31st May 2025
15AQI
15AQI
1st June 2025
17AQI
17AQI
2nd June 2025
17AQI
17AQI
3rd June 2025
19AQI
19AQI
4th June 2025
18AQI
18AQI
5th June 2025
24AQI
24AQI
6th June 2025
24AQI
24AQI
7th June 2025
30AQI
30AQI
8th June 2025
35AQI
35AQI
9th June 2025
31AQI
31AQI
10th June 2025
27AQI
27AQI
11th June 2025
24AQI
24AQI
12th June 2025
27AQI
27AQI
13th June 2025
28AQI
28AQI
14th June 2025
23AQI
23AQI
15th June 2025
21AQI
21AQI
16th June 2025
24AQI
24AQI
17th June 2025
35AQI
35AQI
18th June 2025
29AQI
29AQI
19th June 2025
30AQI
30AQI
20th June 2025
29AQI
29AQI
21st June 2025
23AQI
23AQI
22nd June 2025
12AQI
12AQI
23rd June 2025
14AQI
14AQI
24th June 2025
16AQI
16AQI
25th June 2025
16AQI
16AQI
26th June 2025
16AQI
16AQI
27th June 2025
20AQI
20AQI
28th June 2025
20AQI
20AQI
29th June 2025
24AQI
24AQI
30th June 2025
43AQI
43AQI
1st July 2025
46AQI
46AQI
2nd July 2025
47AQI
47AQI
3rd July 2025
48AQI
48AQI
4th July 2025
49AQI
49AQI
5th July 2025
53AQI
53AQI
6th July 2025
59AQI
59AQI
7th July 2025
75AQI
75AQI
8th July 2025
77AQI
77AQI
9th July 2025
78AQI
78AQI
10th July 2025
60AQI
60AQI
11th July 2025
48AQI
48AQI
12th July 2025
53AQI
53AQI
13th July 2025
50AQI
50AQI
14th July 2025
39AQI
39AQI
15th July 2025
36AQI
36AQI
16th July 2025
39AQI
39AQI
17th July 2025
39AQI
39AQI
18th July 2025
35AQI
35AQI
19th July 2025
33AQI
33AQI
20th July 2025
35AQI
35AQI
21st July 2025
37AQI
37AQI
22nd July 2025
41AQI
41AQI
23rd July 2025
46AQI
46AQI
24th July 2025
47AQI
47AQI
25th July 2025
46AQI
46AQI
26th July 2025
44AQI
44AQI
27th July 2025
41AQI
41AQI
28th July 2025
47AQI
47AQI
29th July 2025
46AQI
46AQI
30th July 2025
36AQI
36AQI
31st July 2025
38AQI
38AQI
1st August 2025
35AQI
35AQI
2nd August 2025
42AQI
42AQI
3rd August 2025
46AQI
46AQI
26AQI
30AQI
34AQI
28AQI
24AQI
24AQI
47AQI
41AQI
No. of days
Jan.Feb.Mar.Apr.MayJun.Jul.Aug.Sep.Oct.Nov.Dec.Total Days
202531AQI
31
28
28
3
30
31
30
24
7
3
205
10
Highest AQI recorded in
July47AQI
Lowest AQI recorded in
May24AQI
202430AQI
31
29
31
30
29
2
27
3
26
5
31
30
31
30
31
356
10
Highest AQI recorded in
June41AQI
Lowest AQI recorded in
December24AQI
202328AQI
31
28
28
3
24
6
28
3
27
3
31
31
30
31
28
1
31
348
16
Highest AQI recorded in
April40AQI
Lowest AQI recorded in
August20AQI
202227AQI
31
19
2
31
28
2
30
1
29
1
19
3
1
27
1
31
30
31
307
10
Highest AQI recorded in
April35AQI
Lowest AQI recorded in
August19AQI
202122AQI
31
28
30
1
30
30
1
27
3
31
29
2
30
31
30
31
358
7
Highest AQI recorded in
June33AQI
Lowest AQI recorded in
January13AQI
202016AQI
13
21
18
30
31
31
19
31
30
31
255
Highest AQI recorded in
March21AQI
Lowest AQI recorded in
September11AQI
Most & Least Polluted Years Over the Last 6 Years
Most Polluted Year Recorded
2025(Avg.)
31AQILeast Polluted Year Recorded
2020(Avg.)
16AQINagaoka's annual 2025 AQI (31) shows an average percentage change of 32.1% (worsened AQI) compared to previous years: 2020 (16), 2021 (22), 2022 (27), 2023 (28), 2024 (30).
