Nikko, Tochigi, 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
Nikko, Tochigi, Japan
2021
2022
2023
2024
2025
AQI
.
Days
AQI Trends: Highest and Lowest
Highest AQI recorded on
5th Aug 2023
55AQILowest AQI recorded on
17th Aug 2021
15AQISame Day Analysis (1st August ):
On this day, AQI across the 5 years varied significantly: 2025 ranks 3rd highest AQI at 39 of Good air quality, showing improvement over 2023 and 2021 on the same day.
Download 2024 Annual Data
World Air Quality Report
Day & Night AQI Trend: 2nd Aug - 3rd Aug 2025
Nikko, Tochigi, Japan
AQI
Day
Night
.
4 AM2nd Aug 2025
6 PM
3 AM3rd Aug 2025
Day time
Avg. Highest Time
12AMNaNth undefined
AQI
Avg. Lowest Time
12AMNaNth undefined
AQI
Night time
Avg. Highest Time
7PM2nd Aug
50AQI
Avg. Lowest Time
12PM2nd Aug
28AQI
In the last 24 hours,
Nikko's AQI reached its highest point of 50 at 7 PM during the Night, while the lowest point, 28, was recorded at 12 PM during the Night between 2nd Aug and 3rd Aug 2025.
Day & Night AQI Trend : Jul - Aug 2025
Nikko, Tochigi, Japan
JulAug
04th - 05th05th - 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
Day
Night
4th Jul 2025504 AMAQI
4th Jul 2025525 AMAQI
4th Jul 2025526 AMAQI
4th Jul 2025527 AMAQI
4th Jul 2025528 AMAQI
4th Jul 2025529 AMAQI
4th Jul 20255210 AMAQI
4th Jul 20255411 AMAQI
4th Jul 20255712 PMAQI
4th Jul 2025581 PMAQI
4th Jul 2025592 PMAQI
4th Jul 2025603 PMAQI
4th Jul 2025634 PMAQI
4th Jul 2025615 PMAQI
4th Jul 2025546 PMAQI
4th Jul 2025437 PMAQI
4th Jul 2025428 PMAQI
4th Jul 2025469 PMAQI
4th Jul 20254810 PMAQI
4th Jul 20255011 PMAQI
5th Jul 20254812 AMAQI
5th Jul 2025511 AMAQI
5th Jul 2025522 AMAQI
5th Jul 2025523 AMAQI
25°C21/31°C
5th Jul 2025524 AMAQI
5th Jul 2025525 AMAQI
5th Jul 2025526 AMAQI
5th Jul 2025527 AMAQI
5th Jul 2025528 AMAQI
5th Jul 2025519 AMAQI
5th Jul 20255110 AMAQI
5th Jul 20255311 AMAQI
5th Jul 20255312 PMAQI
5th Jul 2025511 PMAQI
5th Jul 2025532 PMAQI
5th Jul 2025543 PMAQI
5th Jul 2025584 PMAQI
5th Jul 2025645 PMAQI
5th Jul 2025666 PMAQI
5th Jul 2025627 PMAQI
5th Jul 2025598 PMAQI
5th Jul 2025559 PMAQI
5th Jul 20255710 PMAQI
5th Jul 20255711 PMAQI
6th Jul 20255512 AMAQI
6th Jul 2025541 AMAQI
6th Jul 2025522 AMAQI
6th Jul 2025523 AMAQI
24°C20/30°C
6th Jul 2025524 AMAQI
6th Jul 2025525 AMAQI
6th Jul 2025536 AMAQI
6th Jul 2025527 AMAQI
6th Jul 2025528 AMAQI
6th Jul 2025529 AMAQI
6th Jul 20255510 AMAQI
6th Jul 20255611 AMAQI
6th Jul 20255612 PMAQI
6th Jul 2025561 PMAQI
6th Jul 2025562 PMAQI
6th Jul 2025573 PMAQI
6th Jul 2025594 PMAQI
6th Jul 2025605 PMAQI
6th Jul 2025626 PMAQI
6th Jul 2025687 PMAQI
6th Jul 2025688 PMAQI
6th Jul 2025619 PMAQI
6th Jul 20255910 PMAQI
6th Jul 20255811 PMAQI
7th Jul 20255812 AMAQI
7th Jul 2025591 AMAQI
7th Jul 2025542 AMAQI
7th Jul 2025533 AMAQI
26°C22/31°C
7th Jul 2025534 AMAQI
7th Jul 2025535 AMAQI
7th Jul 2025536 AMAQI
7th Jul 2025537 AMAQI
7th Jul 2025538 AMAQI
7th Jul 2025629 AMAQI
7th Jul 20257210 AMAQI
7th Jul 20257911 AMAQI
7th Jul 20258012 PMAQI
7th Jul 2025721 PMAQI
7th Jul 2025722 PMAQI
7th Jul 2025743 PMAQI
7th Jul 2025814 PMAQI
7th Jul 2025805 PMAQI
7th Jul 2025866 PMAQI
7th Jul 2025867 PMAQI
7th Jul 2025798 PMAQI
7th Jul 2025699 PMAQI
7th Jul 20256910 PMAQI
7th Jul 20256711 PMAQI
8th Jul 20256612 AMAQI
8th Jul 2025601 AMAQI
8th Jul 2025562 AMAQI
8th Jul 2025543 AMAQI
26°C22/31°C
8th Jul 2025564 AMAQI
8th Jul 2025585 AMAQI
8th Jul 2025586 AMAQI
8th Jul 2025587 AMAQI
8th Jul 2025588 AMAQI
8th Jul 2025829 AMAQI
8th Jul 20259110 AMAQI
8th Jul 20259511 AMAQI
8th Jul 20259812 PMAQI
8th Jul 2025891 PMAQI
8th Jul 2025872 PMAQI
8th Jul 2025843 PMAQI
8th Jul 2025824 PMAQI
8th Jul 2025855 PMAQI
8th Jul 2025816 PMAQI
8th Jul 2025817 PMAQI
8th Jul 2025788 PMAQI
8th Jul 2025699 PMAQI
8th Jul 20256710 PMAQI
8th Jul 20256811 PMAQI
9th Jul 20256812 AMAQI
9th Jul 2025631 AMAQI
9th Jul 2025592 AMAQI
9th Jul 2025583 AMAQI
27°C23/32°C
9th Jul 2025604 AMAQI
9th Jul 2025645 AMAQI
9th Jul 2025646 AMAQI
9th Jul 2025647 AMAQI
9th Jul 2025648 AMAQI
9th Jul 2025769 AMAQI
9th Jul 20258010 AMAQI
9th Jul 20258911 AMAQI
9th Jul 20258912 PMAQI
9th Jul 2025921 PMAQI
9th Jul 2025922 PMAQI
9th Jul 2025923 PMAQI
9th Jul 2025904 PMAQI
9th Jul 2025835 PMAQI
9th Jul 2025846 PMAQI
9th Jul 2025907 PMAQI
9th Jul 2025868 PMAQI
9th Jul 2025709 PMAQI
9th Jul 20256910 PMAQI
9th Jul 20256711 PMAQI
10th Jul 20256512 AMAQI
10th Jul 2025651 AMAQI
10th Jul 2025622 AMAQI
10th Jul 2025613 AMAQI
26°C22/32°C
10th Jul 2025634 AMAQI
10th Jul 2025675 AMAQI
10th Jul 2025666 AMAQI
10th Jul 2025667 AMAQI
10th Jul 2025668 AMAQI
10th Jul 2025669 AMAQI
10th Jul 20256510 AMAQI
10th Jul 20257111 AMAQI
10th Jul 20257412 PMAQI
10th Jul 2025741 PMAQI
10th Jul 2025762 PMAQI
10th Jul 2025743 PMAQI
10th Jul 2025624 PMAQI
10th Jul 2025475 PMAQI
10th Jul 2025356 PMAQI
10th Jul 2025337 PMAQI
10th Jul 2025408 PMAQI
10th Jul 2025539 PMAQI
10th Jul 20255310 PMAQI
10th Jul 20255311 PMAQI
11th Jul 20255212 AMAQI
11th Jul 2025571 AMAQI
11th Jul 2025632 AMAQI
11th Jul 2025643 AMAQI
23°C21/29°C
11th Jul 2025644 AMAQI
11th Jul 2025655 AMAQI
11th Jul 2025646 AMAQI
11th Jul 2025647 AMAQI
11th Jul 2025658 AMAQI
11th Jul 2025279 AMAQI
11th Jul 20251610 AMAQI
11th Jul 20251511 AMAQI
11th Jul 20251612 PMAQI
11th Jul 2025241 PMAQI
11th Jul 2025272 PMAQI
11th Jul 2025263 PMAQI
11th Jul 2025284 PMAQI
11th Jul 2025295 PMAQI
11th Jul 2025306 PMAQI
11th Jul 2025277 PMAQI
11th Jul 2025368 PMAQI
11th Jul 2025529 PMAQI
11th Jul 20255210 PMAQI
11th Jul 20255211 PMAQI
12th Jul 20255212 AMAQI
12th Jul 2025561 AMAQI
12th Jul 2025602 AMAQI
12th Jul 2025613 AMAQI
19°C18/21°C
12th Jul 2025594 AMAQI
12th Jul 2025555 AMAQI
12th Jul 2025566 AMAQI
12th Jul 2025567 AMAQI
12th Jul 2025558 AMAQI
12th Jul 2025289 AMAQI
12th Jul 20252010 AMAQI
12th Jul 20252411 AMAQI
12th Jul 20252812 PMAQI
12th Jul 2025331 PMAQI
12th Jul 2025352 PMAQI
12th Jul 2025333 PMAQI
12th Jul 2025344 PMAQI
12th Jul 2025345 PMAQI
12th Jul 2025366 PMAQI
12th Jul 2025427 PMAQI
12th Jul 2025448 PMAQI
12th Jul 2025529 PMAQI
12th Jul 20255210 PMAQI
12th Jul 20255211 PMAQI
13th Jul 20255212 AMAQI
13th Jul 2025541 AMAQI
13th Jul 2025552 AMAQI
13th Jul 2025563 AMAQI
20°C16/23°C
13th Jul 2025554 AMAQI
13th Jul 2025535 AMAQI
13th Jul 2025536 AMAQI
13th Jul 2025537 AMAQI
13th Jul 2025538 AMAQI
13th Jul 2025419 AMAQI
13th Jul 20253010 AMAQI
13th Jul 20253011 AMAQI
13th Jul 20253512 PMAQI
13th Jul 2025401 PMAQI
13th Jul 2025442 PMAQI
13th Jul 2025453 PMAQI
13th Jul 2025484 PMAQI
13th Jul 2025515 PMAQI
13th Jul 2025536 PMAQI
13th Jul 2025547 PMAQI
13th Jul 2025548 PMAQI
13th Jul 2025549 PMAQI
13th Jul 20255310 PMAQI
13th Jul 20255211 PMAQI
14th Jul 20255212 AMAQI
14th Jul 2025521 AMAQI
14th Jul 2025532 AMAQI
14th Jul 2025543 AMAQI
22°C17/27°C
14th Jul 2025534 AMAQI
14th Jul 2025525 AMAQI
14th Jul 2025526 AMAQI
14th Jul 2025527 AMAQI
14th Jul 2025528 AMAQI
14th Jul 2025319 AMAQI
14th Jul 20252010 AMAQI
14th Jul 20251811 AMAQI
14th Jul 20251712 PMAQI
14th Jul 2025241 PMAQI
14th Jul 2025212 PMAQI
14th Jul 2025213 PMAQI
14th Jul 2025214 PMAQI
14th Jul 2025235 PMAQI
14th Jul 2025236 PMAQI
14th Jul 2025217 PMAQI
14th Jul 2025258 PMAQI
14th Jul 2025379 PMAQI
14th Jul 20253910 PMAQI
14th Jul 20254111 PMAQI
15th Jul 20254312 AMAQI
15th Jul 2025481 AMAQI
15th Jul 2025522 AMAQI
15th Jul 2025523 AMAQI
23°C21/25°C
15th Jul 2025524 AMAQI
15th Jul 2025505 AMAQI
15th Jul 2025506 AMAQI
15th Jul 2025517 AMAQI
15th Jul 2025518 AMAQI
15th Jul 2025249 AMAQI
15th Jul 20251710 AMAQI
15th Jul 20251911 AMAQI
15th Jul 20251912 PMAQI
15th Jul 2025201 PMAQI
15th Jul 2025212 PMAQI
15th Jul 2025233 PMAQI
15th Jul 2025234 PMAQI
15th Jul 2025235 PMAQI
15th Jul 2025216 PMAQI
15th Jul 2025207 PMAQI
15th Jul 2025238 PMAQI
15th Jul 2025359 PMAQI
15th Jul 20253710 PMAQI
15th Jul 20253511 PMAQI
16th Jul 20253412 AMAQI
16th Jul 2025381 AMAQI
16th Jul 2025452 AMAQI
16th Jul 2025513 AMAQI
24°C22/25°C
16th Jul 2025504 AMAQI
16th Jul 2025465 AMAQI
16th Jul 2025456 AMAQI
16th Jul 2025447 AMAQI
16th Jul 2025448 AMAQI
16th Jul 2025409 AMAQI
16th Jul 20254510 AMAQI
16th Jul 20255411 AMAQI
16th Jul 20255712 PMAQI
16th Jul 2025521 PMAQI
16th Jul 2025462 PMAQI
16th Jul 2025393 PMAQI
16th Jul 2025314 PMAQI
16th Jul 2025265 PMAQI
16th Jul 2025266 PMAQI
16th Jul 2025267 PMAQI
16th Jul 2025278 PMAQI
16th Jul 2025379 PMAQI
16th Jul 20253510 PMAQI
16th Jul 20253311 PMAQI
17th Jul 20253712 AMAQI
17th Jul 2025401 AMAQI
17th Jul 2025442 AMAQI
17th Jul 2025453 AMAQI
23°C20/27°C
17th Jul 2025454 AMAQI
17th Jul 2025465 AMAQI
17th Jul 2025466 AMAQI
17th Jul 2025467 AMAQI
17th Jul 2025468 AMAQI
17th Jul 2025229 AMAQI
17th Jul 20251610 AMAQI
17th Jul 20251711 AMAQI
17th Jul 20251812 PMAQI
17th Jul 2025221 PMAQI
17th Jul 2025252 PMAQI
17th Jul 2025303 PMAQI
17th Jul 2025344 PMAQI
17th Jul 2025345 PMAQI
17th Jul 2025356 PMAQI
17th Jul 2025367 PMAQI
17th Jul 2025388 PMAQI
17th Jul 2025419 PMAQI
17th Jul 20253910 PMAQI
17th Jul 20253811 PMAQI
18th Jul 20253812 AMAQI
18th Jul 2025401 AMAQI
18th Jul 2025442 AMAQI
18th Jul 2025443 AMAQI
23°C20/27°C
18th Jul 2025434 AMAQI
18th Jul 2025395 AMAQI
18th Jul 2025396 AMAQI
18th Jul 2025397 AMAQI
18th Jul 2025398 AMAQI
18th Jul 2025279 AMAQI
18th Jul 20252710 AMAQI
18th Jul 20253011 AMAQI
18th Jul 20253312 PMAQI
18th Jul 2025381 PMAQI
18th Jul 2025402 PMAQI
18th Jul 2025423 PMAQI
18th Jul 2025474 PMAQI
18th Jul 2025425 PMAQI
18th Jul 2025386 PMAQI
18th Jul 2025407 PMAQI
18th Jul 2025398 PMAQI
18th Jul 2025389 PMAQI
18th Jul 20253810 PMAQI
18th Jul 20253811 PMAQI
19th Jul 20253612 AMAQI
19th Jul 2025381 AMAQI
19th Jul 2025422 AMAQI
19th Jul 2025433 AMAQI
24°C20/30°C
19th Jul 2025414 AMAQI
19th Jul 2025405 AMAQI
19th Jul 2025406 AMAQI
19th Jul 2025417 AMAQI
19th Jul 2025408 AMAQI
19th Jul 2025299 AMAQI
19th Jul 20252910 AMAQI
19th Jul 20253711 AMAQI
19th Jul 20253812 PMAQI
19th Jul 2025351 PMAQI
19th Jul 2025362 PMAQI
19th Jul 2025363 PMAQI
19th Jul 2025374 PMAQI
19th Jul 2025375 PMAQI
19th Jul 2025406 PMAQI
19th Jul 2025367 PMAQI
19th Jul 2025368 PMAQI
19th Jul 2025409 PMAQI
19th Jul 20253810 PMAQI
19th Jul 20253811 PMAQI
20th Jul 20253612 AMAQI
20th Jul 2025371 AMAQI
20th Jul 2025402 AMAQI
20th Jul 2025403 AMAQI
25°C21/31°C
20th Jul 2025414 AMAQI
20th Jul 2025405 AMAQI
20th Jul 2025396 AMAQI
20th Jul 2025407 AMAQI
20th Jul 2025408 AMAQI
20th Jul 2025349 AMAQI
20th Jul 20253310 AMAQI
20th Jul 20253611 AMAQI
20th Jul 20253812 PMAQI
20th Jul 2025421 PMAQI
20th Jul 2025442 PMAQI
20th Jul 2025473 PMAQI
20th Jul 2025524 PMAQI
20th Jul 2025525 PMAQI
20th Jul 2025516 PMAQI
20th Jul 2025507 PMAQI
20th Jul 2025488 PMAQI
20th Jul 2025459 PMAQI
20th Jul 20254810 PMAQI
20th Jul 20254711 PMAQI
21st Jul 20254112 AMAQI
21st Jul 2025391 AMAQI
21st Jul 2025402 AMAQI
21st Jul 2025403 AMAQI
26°C22/32°C
21st Jul 2025394 AMAQI
21st Jul 2025395 AMAQI
21st Jul 2025396 AMAQI
21st Jul 2025397 AMAQI
21st Jul 2025388 AMAQI
21st Jul 2025429 AMAQI
21st Jul 20254510 AMAQI
21st Jul 20255011 AMAQI
21st Jul 20255212 PMAQI
21st Jul 2025531 PMAQI
21st Jul 2025532 PMAQI
21st Jul 2025543 PMAQI
21st Jul 2025564 PMAQI
21st Jul 2025575 PMAQI
21st Jul 2025556 PMAQI
21st Jul 2025457 PMAQI
21st Jul 2025408 PMAQI
21st Jul 2025429 PMAQI
21st Jul 20254310 PMAQI
21st Jul 20254211 PMAQI
22nd Jul 20254112 AMAQI
22nd Jul 2025401 AMAQI
22nd Jul 2025402 AMAQI
22nd Jul 2025393 AMAQI
27°C21/33°C
22nd Jul 2025404 AMAQI
22nd Jul 2025425 AMAQI
22nd Jul 2025426 AMAQI
22nd Jul 2025427 AMAQI
22nd Jul 2025428 AMAQI
22nd Jul 2025489 AMAQI
22nd Jul 20255110 AMAQI
22nd Jul 20255611 AMAQI
22nd Jul 20255812 PMAQI
22nd Jul 2025591 PMAQI
22nd Jul 2025602 PMAQI
22nd Jul 2025593 PMAQI
22nd Jul 2025564 PMAQI
22nd Jul 2025555 PMAQI
22nd Jul 2025526 PMAQI
22nd Jul 2025517 PMAQI
22nd Jul 2025498 PMAQI
22nd Jul 2025489 PMAQI
22nd Jul 20254510 PMAQI
22nd Jul 20254411 PMAQI
23rd Jul 20254512 AMAQI
23rd Jul 2025441 AMAQI
23rd Jul 2025412 AMAQI
23rd Jul 2025423 AMAQI
27°C22/33°C
23rd Jul 2025434 AMAQI
23rd Jul 2025455 AMAQI
23rd Jul 2025456 AMAQI
23rd Jul 2025457 AMAQI
23rd Jul 2025448 AMAQI
23rd Jul 2025539 AMAQI
23rd Jul 20255710 AMAQI
23rd Jul 20256011 AMAQI
23rd Jul 20256012 PMAQI
23rd Jul 2025621 PMAQI
23rd Jul 2025622 PMAQI
23rd Jul 2025603 PMAQI
23rd Jul 2025564 PMAQI
23rd Jul 2025565 PMAQI
23rd Jul 2025586 PMAQI
23rd Jul 2025567 PMAQI
23rd Jul 2025528 PMAQI
23rd Jul 2025509 PMAQI
23rd Jul 20254710 PMAQI
23rd Jul 20254711 PMAQI
24th Jul 20254812 AMAQI
24th Jul 2025461 AMAQI
24th Jul 2025442 AMAQI
24th Jul 2025433 AMAQI
26°C21/33°C
24th Jul 2025464 AMAQI
24th Jul 2025495 AMAQI
24th Jul 2025506 AMAQI
24th Jul 2025507 AMAQI
24th Jul 2025508 AMAQI
24th Jul 2025539 AMAQI
24th Jul 20255410 AMAQI
24th Jul 20255611 AMAQI
24th Jul 20255712 PMAQI
24th Jul 2025591 PMAQI
24th Jul 2025622 PMAQI
24th Jul 2025623 PMAQI
24th Jul 2025554 PMAQI
24th Jul 2025525 PMAQI
24th Jul 2025526 PMAQI
24th Jul 2025547 PMAQI
24th Jul 2025548 PMAQI
24th Jul 2025549 PMAQI
24th Jul 20255310 PMAQI
24th Jul 20255211 PMAQI
25th Jul 20255312 AMAQI
25th Jul 2025501 AMAQI
25th Jul 2025472 AMAQI
25th Jul 2025473 AMAQI
27°C21/32°C
25th Jul 2025494 AMAQI
25th Jul 2025525 AMAQI
25th Jul 2025526 AMAQI
25th Jul 2025517 AMAQI
25th Jul 2025518 AMAQI
25th Jul 2025559 AMAQI
25th Jul 20255710 AMAQI
25th Jul 20255911 AMAQI
25th Jul 20255912 PMAQI
25th Jul 2025641 PMAQI
25th Jul 2025652 PMAQI
25th Jul 2025633 PMAQI
25th Jul 2025484 PMAQI
25th Jul 2025395 PMAQI
25th Jul 2025436 PMAQI
25th Jul 2025487 PMAQI
25th Jul 2025528 PMAQI
25th Jul 2025539 PMAQI
25th Jul 20255210 PMAQI
25th Jul 20255411 PMAQI
26th Jul 20255312 AMAQI
26th Jul 2025521 AMAQI
26th Jul 2025502 AMAQI
26th Jul 2025503 AMAQI
26°C21/33°C
26th Jul 2025514 AMAQI
26th Jul 2025535 AMAQI
26th Jul 2025536 AMAQI
26th Jul 2025537 AMAQI
26th Jul 2025538 AMAQI
26th Jul 2025559 AMAQI
26th Jul 20255610 AMAQI
26th Jul 20255611 AMAQI
26th Jul 20255712 PMAQI
26th Jul 2025601 PMAQI
26th Jul 2025592 PMAQI
26th Jul 2025593 PMAQI
26th Jul 2025584 PMAQI
26th Jul 2025555 PMAQI
26th Jul 2025566 PMAQI
26th Jul 2025577 PMAQI
26th Jul 2025558 PMAQI
26th Jul 2025529 PMAQI
26th Jul 20255110 PMAQI
26th Jul 20255111 PMAQI
27th Jul 20255112 AMAQI
27th Jul 2025511 AMAQI
27th Jul 2025512 AMAQI
27th Jul 2025513 AMAQI
26°C21/33°C
27th Jul 2025524 AMAQI
27th Jul 2025535 AMAQI
27th Jul 2025536 AMAQI
27th Jul 2025537 AMAQI
27th Jul 2025538 AMAQI
27th Jul 2025529 AMAQI
27th Jul 20255210 AMAQI
27th Jul 20255611 AMAQI
27th Jul 20255412 PMAQI
27th Jul 2025551 PMAQI
27th Jul 2025542 PMAQI
27th Jul 2025583 PMAQI
27th Jul 2025564 PMAQI
27th Jul 2025515 PMAQI
27th Jul 2025486 PMAQI
27th Jul 2025507 PMAQI
27th Jul 2025518 PMAQI
27th Jul 2025519 PMAQI
27th Jul 20255110 PMAQI
27th Jul 20255111 PMAQI
28th Jul 20255112 AMAQI
28th Jul 2025511 AMAQI
28th Jul 2025522 AMAQI
28th Jul 2025523 AMAQI
27°C22/33°C
28th Jul 2025524 AMAQI
28th Jul 2025525 AMAQI
28th Jul 2025526 AMAQI
28th Jul 2025537 AMAQI
28th Jul 2025538 AMAQI
28th Jul 2025489 AMAQI
28th Jul 20254610 AMAQI
28th Jul 20254711 AMAQI
28th Jul 20254712 PMAQI
28th Jul 2025501 PMAQI
28th Jul 2025482 PMAQI
28th Jul 2025513 PMAQI
28th Jul 2025564 PMAQI
28th Jul 2025525 PMAQI
28th Jul 2025516 PMAQI
28th Jul 2025577 PMAQI
28th Jul 2025548 PMAQI
28th Jul 2025529 PMAQI
28th Jul 20255010 PMAQI
28th Jul 20255011 PMAQI
29th Jul 20255012 AMAQI
29th Jul 2025511 AMAQI
29th Jul 2025512 AMAQI
29th Jul 2025513 AMAQI
27°C22/33°C
29th Jul 2025514 AMAQI
29th Jul 2025525 AMAQI
29th Jul 2025526 AMAQI
29th Jul 2025527 AMAQI
29th Jul 2025528 AMAQI
29th Jul 2025529 AMAQI
29th Jul 20255310 AMAQI
29th Jul 20255511 AMAQI
29th Jul 20255712 PMAQI
29th Jul 2025571 PMAQI
29th Jul 2025562 PMAQI
29th Jul 2025573 PMAQI
29th Jul 2025574 PMAQI
29th Jul 2025565 PMAQI
29th Jul 2025556 PMAQI
29th Jul 2025507 PMAQI
29th Jul 2025468 PMAQI
29th Jul 2025439 PMAQI
29th Jul 20253810 PMAQI
29th Jul 20253911 PMAQI
30th Jul 20253812 AMAQI
30th Jul 2025411 AMAQI
30th Jul 2025482 AMAQI
30th Jul 2025513 AMAQI
27°C22/34°C
30th Jul 2025514 AMAQI
30th Jul 2025525 AMAQI
30th Jul 2025526 AMAQI
30th Jul 2025527 AMAQI
30th Jul 2025528 AMAQI
30th Jul 2025459 AMAQI
30th Jul 20253010 AMAQI
30th Jul 20252611 AMAQI
30th Jul 20252812 PMAQI
30th Jul 2025291 PMAQI
30th Jul 2025332 PMAQI
30th Jul 2025393 PMAQI
30th Jul 2025384 PMAQI
30th Jul 2025375 PMAQI
30th Jul 2025376 PMAQI
30th Jul 2025357 PMAQI
30th Jul 2025388 PMAQI
30th Jul 2025419 PMAQI
30th Jul 20254110 PMAQI
30th Jul 20254311 PMAQI
31st Jul 20254312 AMAQI
31st Jul 2025471 AMAQI
31st Jul 2025512 AMAQI
31st Jul 2025503 AMAQI
26°C21/32°C
31st Jul 2025504 AMAQI
31st Jul 2025505 AMAQI
31st Jul 2025506 AMAQI
31st Jul 2025507 AMAQI
31st Jul 2025508 AMAQI
31st Jul 2025509 AMAQI
31st Jul 20255010 AMAQI
31st Jul 20254411 AMAQI
31st Jul 20254112 PMAQI
31st Jul 2025391 PMAQI
31st Jul 2025352 PMAQI
31st Jul 2025453 PMAQI
31st Jul 2025424 PMAQI
31st Jul 2025395 PMAQI
31st Jul 2025436 PMAQI
31st Jul 2025427 PMAQI
31st Jul 2025358 PMAQI
31st Jul 2025509 PMAQI
31st Jul 20254010 PMAQI
31st Jul 20253911 PMAQI
1st Aug 20253412 AMAQI
1st Aug 2025401 AMAQI
1st Aug 2025402 AMAQI
1st Aug 2025423 AMAQI
24°C20/32°C
1st Aug 2025414 AMAQI
1st Aug 2025405 AMAQI
1st Aug 2025406 AMAQI
1st Aug 2025427 AMAQI
1st Aug 2025418 AMAQI
1st Aug 2025399 AMAQI
1st Aug 20253610 AMAQI
1st Aug 20254611 AMAQI
1st Aug 20255012 PMAQI
1st Aug 2025461 PMAQI
1st Aug 2025362 PMAQI
1st Aug 2025363 PMAQI
1st Aug 2025484 PMAQI
1st Aug 2025435 PMAQI
1st Aug 2025456 PMAQI
1st Aug 2025397 PMAQI
1st Aug 2025318 PMAQI
1st Aug 2025329 PMAQI
1st Aug 20253410 PMAQI
1st Aug 20253211 PMAQI
2nd Aug 20253312 AMAQI
2nd Aug 2025361 AMAQI
2nd Aug 2025392 AMAQI
2nd Aug 2025413 AMAQI
24°C19/29°C
2nd Aug 2025424 AMAQI
2nd Aug 2025425 AMAQI
2nd Aug 2025426 AMAQI
2nd Aug 2025397 AMAQI
2nd Aug 2025428 AMAQI
2nd Aug 2025389 AMAQI
2nd Aug 20253510 AMAQI
2nd Aug 20253411 AMAQI
2nd Aug 20252812 PMAQI
2nd Aug 2025351 PMAQI
2nd Aug 2025452 PMAQI
2nd Aug 2025493 PMAQI
2nd Aug 2025414 PMAQI
2nd Aug 2025465 PMAQI
2nd Aug 2025476 PMAQI
2nd Aug 2025507 PMAQI
2nd Aug 2025398 PMAQI
2nd Aug 2025419 PMAQI
2nd Aug 20253710 PMAQI
2nd Aug 20254311 PMAQI
3rd Aug 20253212 AMAQI
3rd Aug 2025381 AMAQI
3rd Aug 2025412 AMAQI
3rd Aug 2025403 AMAQI
--°C/°C
3rd Aug 2025414 AMAQI
4 AM3rd Aug 2025405 AMAQI
3rd Aug 2025416 AMAQI
11 AM
6 PM
11 PM
3 AM
--°C/°C
Day time
Avg. Highest Time
4 AM - 6 PM
49AQI
15 hours / Day
450 hours / Month
Avg. Lowest Time
9 AM - 6 PM
49AQI
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. 49), while the lowest AQI was between 9 AM to 6 PM (Avg. 49).
Night time
Avg. Highest Time
12 AM - 11 PM
48AQI
9 hours / Day
270 hours / Month
Avg. Lowest Time
12 AM - 11 PM
48AQI
9 hours / Day
270 hours / Month
In the last 30 days, during the daytime, the highest AQI was between 12 AM to 11 PM (Avg. 48), while the lowest AQI was between 12 AM to 11 PM (Avg. 48).
2025 Days Vs Air Quality
Nikko, Tochigi, Japan
2025
85%
180
15%
33
Total number of days with different AQI categories in last 214 days in 2025 (151 days remaining)
Good
180 DaysModerate
33 DaysPoor
0 DaysUnhealthy
0 DaysSevere
0 DaysHazardous
0 DaysUnder WHO’s Safe Air Quality Limits: 85%
Health Risk Level:
Low
In 2025, 85% of 214 days were within WHO’s safe air quality limits. The risk of health issues is Low, but the long-term effects, especially on vulnerable individuals, remain uncertain.
Annual Air Quality Insights
Nikko, Tochigi, 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
27AQI
27AQI
3rd January 2025
26AQI
26AQI
4th January 2025
25AQI
25AQI
5th January 2025
27AQI
27AQI
6th January 2025
35AQI
35AQI
7th January 2025
25AQI
25AQI
8th January 2025
29AQI
29AQI
9th January 2025
26AQI
26AQI
10th January 2025
25AQI
25AQI
11th January 2025
25AQI
25AQI
12th January 2025
29AQI
29AQI
13th January 2025
28AQI
28AQI
14th January 2025
28AQI
28AQI
15th January 2025
28AQI
28AQI
16th January 2025
26AQI
26AQI
17th January 2025
26AQI
26AQI
18th January 2025
27AQI
27AQI
19th January 2025
35AQI
35AQI
20th January 2025
32AQI
32AQI
21st January 2025
37AQI
37AQI
22nd January 2025
33AQI
33AQI
23rd January 2025
37AQI
37AQI
24th January 2025
38AQI
38AQI
25th January 2025
32AQI
32AQI
26th January 2025
33AQI
33AQI
27th January 2025
30AQI
30AQI
28th January 2025
29AQI
29AQI
29th January 2025
29AQI
29AQI
30th January 2025
28AQI
28AQI
31st January 2025
29AQI
29AQI
1st February 2025
30AQI
30AQI
2nd February 2025
35AQI
35AQI
3rd February 2025
29AQI
29AQI
4th February 2025
31AQI
31AQI
5th February 2025
31AQI
31AQI
6th February 2025
30AQI
30AQI
7th February 2025
31AQI
31AQI
8th February 2025
31AQI
31AQI
9th February 2025
30AQI
30AQI
10th February 2025
30AQI
30AQI
11th February 2025
31AQI
31AQI
12th February 2025
32AQI
32AQI
13th February 2025
33AQI
33AQI
14th February 2025
30AQI
30AQI
15th February 2025
31AQI
31AQI
16th February 2025
40AQI
40AQI
17th February 2025
37AQI
37AQI
18th February 2025
34AQI
34AQI
19th February 2025
32AQI
32AQI
20th February 2025
31AQI
31AQI
21st February 2025
32AQI
32AQI
22nd February 2025
32AQI
32AQI
23rd February 2025
33AQI
33AQI
24th February 2025
33AQI
33AQI
25th February 2025
35AQI
35AQI
26th February 2025
35AQI
35AQI
27th February 2025
38AQI
38AQI
28th February 2025
44AQI
44AQI
1st March 2025
49AQI
49AQI
2nd March 2025
46AQI
46AQI
3rd March 2025
39AQI
39AQI
4th March 2025
37AQI
37AQI
5th March 2025
28AQI
28AQI
6th March 2025
31AQI
31AQI
7th March 2025
33AQI
33AQI
8th March 2025
38AQI
38AQI
9th March 2025
35AQI
35AQI
10th March 2025
38AQI
38AQI
11th March 2025
42AQI
42AQI
12th March 2025
41AQI
41AQI
13th March 2025
45AQI
45AQI
14th March 2025
34AQI
34AQI
15th March 2025
40AQI
40AQI
16th March 2025
22AQI
22AQI
17th March 2025
23AQI
23AQI
18th March 2025
25AQI
25AQI
19th March 2025
19AQI
19AQI
20th March 2025
26AQI
26AQI
21st March 2025
36AQI
36AQI
22nd March 2025
45AQI
45AQI
23rd March 2025
52AQI
52AQI
24th March 2025
53AQI
53AQI
25th March 2025
68AQI
68AQI
26th March 2025
62AQI
62AQI
27th March 2025
69AQI
69AQI
28th March 2025
50AQI
50AQI
29th March 2025
36AQI
36AQI
30th March 2025
34AQI
34AQI
31st March 2025
32AQI
32AQI
1st April 2025
27AQI
27AQI
2nd April 2025
22AQI
22AQI
3rd April 2025
21AQI
21AQI
4th April 2025
22AQI
22AQI
5th April 2025
29AQI
29AQI
6th April 2025
26AQI
26AQI
7th April 2025
29AQI
29AQI
8th April 2025
39AQI
39AQI
9th April 2025
29AQI
29AQI
10th April 2025
44AQI
44AQI
11th April 2025
35AQI
35AQI
12th April 2025
41AQI
41AQI
13th April 2025
24AQI
24AQI
14th April 2025
24AQI
24AQI
15th April 2025
25AQI
25AQI
16th April 2025
23AQI
23AQI
17th April 2025
43AQI
43AQI
18th April 2025
52AQI
52AQI
19th April 2025
66AQI
66AQI
20th April 2025
65AQI
65AQI
21st April 2025
45AQI
45AQI
22nd April 2025
53AQI
53AQI
23rd April 2025
29AQI
29AQI
24th April 2025
37AQI
37AQI
25th April 2025
37AQI
37AQI
26th April 2025
47AQI
47AQI
27th April 2025
45AQI
45AQI
28th April 2025
50AQI
50AQI
29th April 2025
34AQI
34AQI
30th April 2025
44AQI
44AQI
1st May 2025
45AQI
45AQI
2nd May 2025
30AQI
30AQI
3rd May 2025
32AQI
32AQI
4th May 2025
31AQI
31AQI
5th May 2025
36AQI
36AQI
6th May 2025
29AQI
29AQI
7th May 2025
26AQI
26AQI
8th May 2025
33AQI
33AQI
9th May 2025
35AQI
35AQI
10th May 2025
22AQI
22AQI
11th May 2025
24AQI
24AQI
12th May 2025
22AQI
22AQI
13th May 2025
35AQI
35AQI
14th May 2025
41AQI
41AQI
15th May 2025
45AQI
45AQI
16th May 2025
51AQI
51AQI
17th May 2025
33AQI
33AQI
18th May 2025
39AQI
39AQI
19th May 2025
39AQI
39AQI
20th May 2025
52AQI
52AQI
21st May 2025
65AQI
65AQI
22nd May 2025
57AQI
57AQI
23rd May 2025
50AQI
50AQI
24th May 2025
43AQI
43AQI
25th May 2025
29AQI
29AQI
26th May 2025
32AQI
32AQI
27th May 2025
30AQI
30AQI
28th May 2025
29AQI
29AQI
29th May 2025
38AQI
38AQI
30th May 2025
27AQI
27AQI
31st May 2025
20AQI
20AQI
1st June 2025
22AQI
22AQI
2nd June 2025
35AQI
35AQI
3rd June 2025
32AQI
32AQI
4th June 2025
30AQI
30AQI
5th June 2025
34AQI
34AQI
6th June 2025
46AQI
46AQI
7th June 2025
53AQI
53AQI
8th June 2025
63AQI
63AQI
9th June 2025
59AQI
59AQI
10th June 2025
44AQI
44AQI
11th June 2025
34AQI
34AQI
12th June 2025
39AQI
39AQI
13th June 2025
45AQI
45AQI
14th June 2025
40AQI
40AQI
15th June 2025
30AQI
30AQI
16th June 2025
37AQI
37AQI
17th June 2025
43AQI
43AQI
18th June 2025
43AQI
43AQI
19th June 2025
45AQI
45AQI
20th June 2025
47AQI
47AQI
21st June 2025
47AQI
47AQI
22nd June 2025
54AQI
54AQI
23rd June 2025
46AQI
46AQI
24th June 2025
41AQI
41AQI
25th June 2025
35AQI
35AQI
26th June 2025
32AQI
32AQI
27th June 2025
36AQI
36AQI
28th June 2025
38AQI
38AQI
29th June 2025
45AQI
45AQI
30th June 2025
51AQI
51AQI
1st July 2025
53AQI
53AQI
2nd July 2025
49AQI
49AQI
3rd July 2025
51AQI
51AQI
4th July 2025
51AQI
51AQI
5th July 2025
54AQI
54AQI
6th July 2025
57AQI
57AQI
7th July 2025
66AQI
66AQI
8th July 2025
72AQI
72AQI
9th July 2025
74AQI
74AQI
10th July 2025
60AQI
60AQI
11th July 2025
45AQI
45AQI
12th July 2025
46AQI
46AQI
13th July 2025
50AQI
50AQI
14th July 2025
38AQI
38AQI
15th July 2025
35AQI
35AQI
16th July 2025
39AQI
39AQI
17th July 2025
36AQI
36AQI
18th July 2025
39AQI
39AQI
19th July 2025
38AQI
38AQI
20th July 2025
42AQI
42AQI
21st July 2025
44AQI
44AQI
22nd July 2025
47AQI
47AQI
23rd July 2025
50AQI
50AQI
24th July 2025
52AQI
52AQI
25th July 2025
52AQI
52AQI
26th July 2025
54AQI
54AQI
27th July 2025
52AQI
52AQI
28th July 2025
51AQI
51AQI
29th July 2025
51AQI
51AQI
30th July 2025
41AQI
41AQI
31st July 2025
44AQI
44AQI
1st August 2025
39AQI
39AQI
29AQI
33AQI
40AQI
37AQI
36AQI
42AQI
49AQI
39AQI
No. of days
Jan.Feb.Mar.Apr.MayJun.Jul.Aug.Sep.Oct.Nov.Dec.Total Days
202538AQI
31
28
26
5
26
4
27
4
25
5
16
15
1
180
33
Highest AQI recorded in
July49AQI
Lowest AQI recorded in
January29AQI
202432AQI
31
29
29
1
22
7
31
28
2
29
2
31
27
3
31
29
1
31
348
16
Highest AQI recorded in
April42AQI
Lowest AQI recorded in
January21AQI
202335AQI
12
1
27
4
27
3
20
11
28
3
29
1
31
27
2
31
232
25
Highest AQI recorded in
July47AQI
Lowest AQI recorded in
December18AQI
202236AQI
31
21
27
4
16
1
25
6
18
12
16
5
1
27
1
29
2
12
223
31
Highest AQI recorded in
August48AQI
Lowest AQI recorded in
October28AQI
202132AQI
29
2
26
2
29
21
29
2
24
6
26
5
28
3
28
2
30
1
29
1
31
330
24
Highest AQI recorded in
June42AQI
Lowest AQI recorded in
January23AQI
202032AQI
12
1
20
1
18
25
5
29
2
14
17
19
29
2
27
3
31
224
31
Highest AQI recorded in
August54AQI
Lowest AQI recorded in
December19AQI
Most & Least Polluted Years Over the Last 6 Years
Most Polluted Year Recorded
2025(Avg.)
38AQILeast Polluted Year Recorded
2020(Avg.)
32AQINikko's annual 2025 AQI (38) shows an average percentage change of 14.08% (worsened AQI) compared to previous years: 2020 (32), 2021 (32), 2022 (36), 2023 (35), 2024 (32).
