Imaichi, 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
Imaichi, 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 (3rd August ):
On this day, AQI across the 5 years varied significantly: 2025 ranks 2nd highest AQI at 38 of Good air quality, showing improvement over 2023 on the same day.
Download 2024 Annual Data
World Air Quality Report
Day & Night AQI Trend: 3rd Aug - 4th Aug 2025
Imaichi, Nikko, Tochigi, Japan
AQI
Day
Night
.
4 AM3rd Aug 2025
6 PM
3 AM4th Aug 2025
Day time
Avg. Highest Time
12PM3rd Aug
59AQI
Avg. Lowest Time
8AM3rd Aug
40AQI
Night time
Avg. Highest Time
7PM3rd Aug
58AQI
Avg. Lowest Time
12AM4th Aug
36AQI
In the last 24 hours,
Imaichi's AQI reached its highest point of 59 at 12 PM during the Day, while the lowest point, 36, was recorded at 12 AM during the Night between 3rd Aug and 4th Aug 2025.
Day & Night AQI Trend : Jul - Aug 2025
Imaichi, Nikko, Tochigi, 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 2025524 AMAQI
5th Jul 2025525 AMAQI
5th Jul 2025526 AMAQI
5th Jul 2025527 AMAQI
5th Jul 2025528 AMAQI
5th Jul 2025509 AMAQI
5th Jul 20254910 AMAQI
5th Jul 20255211 AMAQI
5th Jul 20255212 PMAQI
5th Jul 2025501 PMAQI
5th Jul 2025512 PMAQI
5th Jul 2025523 PMAQI
5th Jul 2025584 PMAQI
5th Jul 2025655 PMAQI
5th Jul 2025666 PMAQI
5th Jul 2025627 PMAQI
5th Jul 2025588 PMAQI
5th Jul 2025549 PMAQI
5th Jul 20255610 PMAQI
5th Jul 20255611 PMAQI
6th Jul 20255512 AMAQI
6th Jul 2025541 AMAQI
6th Jul 2025522 AMAQI
6th Jul 2025523 AMAQI
24°C20/30°C
6th Jul 2025514 AMAQI
6th Jul 2025525 AMAQI
6th Jul 2025526 AMAQI
6th Jul 2025527 AMAQI
6th Jul 2025528 AMAQI
6th Jul 2025529 AMAQI
6th Jul 20255410 AMAQI
6th Jul 20255611 AMAQI
6th Jul 20255712 PMAQI
6th Jul 2025571 PMAQI
6th Jul 2025572 PMAQI
6th Jul 2025573 PMAQI
6th Jul 2025614 PMAQI
6th Jul 2025625 PMAQI
6th Jul 2025636 PMAQI
6th Jul 2025697 PMAQI
6th Jul 2025698 PMAQI
6th Jul 2025639 PMAQI
6th Jul 20256010 PMAQI
6th Jul 20255911 PMAQI
7th Jul 20255912 AMAQI
7th Jul 2025591 AMAQI
7th Jul 2025532 AMAQI
7th Jul 2025533 AMAQI
26°C22/31°C
7th Jul 2025524 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 20257811 AMAQI
7th Jul 20257912 PMAQI
7th Jul 2025721 PMAQI
7th Jul 2025732 PMAQI
7th Jul 2025753 PMAQI
7th Jul 2025824 PMAQI
7th Jul 2025825 PMAQI
7th Jul 2025886 PMAQI
7th Jul 2025887 PMAQI
7th Jul 2025808 PMAQI
7th Jul 2025709 PMAQI
7th Jul 20257010 PMAQI
7th Jul 20256711 PMAQI
8th Jul 20256612 AMAQI
8th Jul 2025601 AMAQI
8th Jul 2025552 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 20259711 AMAQI
8th Jul 202510012 PMAQI
8th Jul 2025921 PMAQI
8th Jul 2025882 PMAQI
8th Jul 2025863 PMAQI
8th Jul 2025844 PMAQI
8th Jul 2025885 PMAQI
8th Jul 2025846 PMAQI
8th Jul 2025827 PMAQI
8th Jul 2025798 PMAQI
8th Jul 2025699 PMAQI
8th Jul 20256810 PMAQI
8th Jul 20256811 PMAQI
9th Jul 20256912 AMAQI
9th Jul 2025631 AMAQI
9th Jul 2025582 AMAQI
9th Jul 2025583 AMAQI
27°C23/32°C
9th Jul 2025604 AMAQI
9th Jul 2025645 AMAQI
9th Jul 2025646 AMAQI
9th Jul 2025657 AMAQI
9th Jul 2025648 AMAQI
9th Jul 2025769 AMAQI
9th Jul 20258010 AMAQI
9th Jul 20258911 AMAQI
9th Jul 20258812 PMAQI
9th Jul 2025931 PMAQI
9th Jul 2025922 PMAQI
9th Jul 2025933 PMAQI
9th Jul 2025904 PMAQI
9th Jul 2025845 PMAQI
9th Jul 2025886 PMAQI
9th Jul 2025957 PMAQI
9th Jul 2025888 PMAQI
9th Jul 2025709 PMAQI
9th Jul 20257010 PMAQI
9th Jul 20256711 PMAQI
10th Jul 20256712 AMAQI
10th Jul 2025641 AMAQI
10th Jul 2025622 AMAQI
10th Jul 2025613 AMAQI
26°C22/32°C
10th Jul 2025634 AMAQI
10th Jul 2025685 AMAQI
10th Jul 2025676 AMAQI
10th Jul 2025677 AMAQI
10th Jul 2025668 AMAQI
10th Jul 2025669 AMAQI
10th Jul 20256610 AMAQI
10th Jul 20257411 AMAQI
10th Jul 20258012 PMAQI
10th Jul 2025801 PMAQI
10th Jul 2025802 PMAQI
10th Jul 2025773 PMAQI
10th Jul 2025634 PMAQI
10th Jul 2025445 PMAQI
10th Jul 2025326 PMAQI
10th Jul 2025337 PMAQI
10th Jul 2025398 PMAQI
10th Jul 2025529 PMAQI
10th Jul 20255210 PMAQI
10th Jul 20255211 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 2025656 AMAQI
11th Jul 2025657 AMAQI
11th Jul 2025668 AMAQI
11th Jul 2025289 AMAQI
11th Jul 20251610 AMAQI
11th Jul 20251511 AMAQI
11th Jul 20251712 PMAQI
11th Jul 2025221 PMAQI
11th Jul 2025272 PMAQI
11th Jul 2025253 PMAQI
11th Jul 2025284 PMAQI
11th Jul 2025285 PMAQI
11th Jul 2025306 PMAQI
11th Jul 2025287 PMAQI
11th Jul 2025368 PMAQI
11th Jul 2025519 PMAQI
11th Jul 20255210 PMAQI
11th Jul 20255211 PMAQI
12th Jul 20255212 AMAQI
12th Jul 2025561 AMAQI
12th Jul 2025612 AMAQI
12th Jul 2025613 AMAQI
19°C18/21°C
12th Jul 2025604 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 20252311 AMAQI
12th Jul 20252812 PMAQI
12th Jul 2025321 PMAQI
12th Jul 2025342 PMAQI
12th Jul 2025313 PMAQI
12th Jul 2025314 PMAQI
12th Jul 2025325 PMAQI
12th Jul 2025346 PMAQI
12th Jul 2025407 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 2025562 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 2025429 AMAQI
13th Jul 20253010 AMAQI
13th Jul 20253111 AMAQI
13th Jul 20253412 PMAQI
13th Jul 2025401 PMAQI
13th Jul 2025432 PMAQI
13th Jul 2025443 PMAQI
13th Jul 2025484 PMAQI
13th Jul 2025515 PMAQI
13th Jul 2025546 PMAQI
13th Jul 2025557 PMAQI
13th Jul 2025548 PMAQI
13th Jul 2025549 PMAQI
13th Jul 20255410 PMAQI
13th Jul 20255211 PMAQI
14th Jul 20255212 AMAQI
14th Jul 2025531 AMAQI
14th Jul 2025542 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 2025309 AMAQI
14th Jul 20251910 AMAQI
14th Jul 20251811 AMAQI
14th Jul 20251612 PMAQI
14th Jul 2025221 PMAQI
14th Jul 2025212 PMAQI
14th Jul 2025213 PMAQI
14th Jul 2025214 PMAQI
14th Jul 2025245 PMAQI
14th Jul 2025226 PMAQI
14th Jul 2025207 PMAQI
14th Jul 2025248 PMAQI
14th Jul 2025369 PMAQI
14th Jul 20253710 PMAQI
14th Jul 20253911 PMAQI
15th Jul 20254112 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 2025496 AMAQI
15th Jul 2025507 AMAQI
15th Jul 2025508 AMAQI
15th Jul 2025249 AMAQI
15th Jul 20251710 AMAQI
15th Jul 20251911 AMAQI
15th Jul 20251912 PMAQI
15th Jul 2025191 PMAQI
15th Jul 2025192 PMAQI
15th Jul 2025233 PMAQI
15th Jul 2025234 PMAQI
15th Jul 2025235 PMAQI
15th Jul 2025206 PMAQI
15th Jul 2025187 PMAQI
15th Jul 2025208 PMAQI
15th Jul 2025339 PMAQI
15th Jul 20253410 PMAQI
15th Jul 20253411 PMAQI
16th Jul 20253212 AMAQI
16th Jul 2025371 AMAQI
16th Jul 2025442 AMAQI
16th Jul 2025513 AMAQI
24°C22/25°C
16th Jul 2025504 AMAQI
16th Jul 2025455 AMAQI
16th Jul 2025446 AMAQI
16th Jul 2025447 AMAQI
16th Jul 2025448 AMAQI
16th Jul 2025409 AMAQI
16th Jul 20254610 AMAQI
16th Jul 20255511 AMAQI
16th Jul 20255812 PMAQI
16th Jul 2025521 PMAQI
16th Jul 2025472 PMAQI
16th Jul 2025383 PMAQI
16th Jul 2025314 PMAQI
16th Jul 2025265 PMAQI
16th Jul 2025246 PMAQI
16th Jul 2025257 PMAQI
16th Jul 2025268 PMAQI
16th Jul 2025329 PMAQI
16th Jul 20253110 PMAQI
16th Jul 20253211 PMAQI
17th Jul 20253612 AMAQI
17th Jul 2025401 AMAQI
17th Jul 2025442 AMAQI
17th Jul 2025443 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 20251611 AMAQI
17th Jul 20251812 PMAQI
17th Jul 2025211 PMAQI
17th Jul 2025242 PMAQI
17th Jul 2025303 PMAQI
17th Jul 2025344 PMAQI
17th Jul 2025345 PMAQI
17th Jul 2025366 PMAQI
17th Jul 2025387 PMAQI
17th Jul 2025398 PMAQI
17th Jul 2025419 PMAQI
17th Jul 20253810 PMAQI
17th Jul 20253711 PMAQI
18th Jul 20253612 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 2025408 AMAQI
18th Jul 2025269 AMAQI
18th Jul 20252710 AMAQI
18th Jul 20253111 AMAQI
18th Jul 20253412 PMAQI
18th Jul 2025391 PMAQI
18th Jul 2025422 PMAQI
18th Jul 2025443 PMAQI
18th Jul 2025504 PMAQI
18th Jul 2025425 PMAQI
18th Jul 2025386 PMAQI
18th Jul 2025397 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 2025407 AMAQI
19th Jul 2025408 AMAQI
19th Jul 2025289 AMAQI
19th Jul 20252810 AMAQI
19th Jul 20253911 AMAQI
19th Jul 20253812 PMAQI
19th Jul 2025361 PMAQI
19th Jul 2025372 PMAQI
19th Jul 2025383 PMAQI
19th Jul 2025384 PMAQI
19th Jul 2025385 PMAQI
19th Jul 2025406 PMAQI
19th Jul 2025347 PMAQI
19th Jul 2025348 PMAQI
19th Jul 2025389 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 2025395 AMAQI
20th Jul 2025386 AMAQI
20th Jul 2025407 AMAQI
20th Jul 2025408 AMAQI
20th Jul 2025349 AMAQI
20th Jul 20253310 AMAQI
20th Jul 20253711 AMAQI
20th Jul 20253812 PMAQI
20th Jul 2025421 PMAQI
20th Jul 2025422 PMAQI
20th Jul 2025463 PMAQI
20th Jul 2025534 PMAQI
20th Jul 2025525 PMAQI
20th Jul 2025526 PMAQI
20th Jul 2025517 PMAQI
20th Jul 2025498 PMAQI
20th Jul 2025459 PMAQI
20th Jul 20254610 PMAQI
20th Jul 20254511 PMAQI
21st Jul 20254012 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 20254610 AMAQI
21st Jul 20255211 AMAQI
21st Jul 20255212 PMAQI
21st Jul 2025541 PMAQI
21st Jul 2025542 PMAQI
21st Jul 2025563 PMAQI
21st Jul 2025574 PMAQI
21st Jul 2025595 PMAQI
21st Jul 2025596 PMAQI
21st Jul 2025467 PMAQI
21st Jul 2025408 PMAQI
21st Jul 2025429 PMAQI
21st Jul 20254210 PMAQI
21st Jul 20254211 PMAQI
22nd Jul 20254212 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 2025437 AMAQI
22nd Jul 2025428 AMAQI
22nd Jul 2025479 AMAQI
22nd Jul 20255210 AMAQI
22nd Jul 20255611 AMAQI
22nd Jul 20255912 PMAQI
22nd Jul 2025611 PMAQI
22nd Jul 2025622 PMAQI
22nd Jul 2025603 PMAQI
22nd Jul 2025564 PMAQI
22nd Jul 2025545 PMAQI
22nd Jul 2025516 PMAQI
22nd Jul 2025517 PMAQI
22nd Jul 2025508 PMAQI
22nd Jul 2025499 PMAQI
22nd Jul 20254610 PMAQI
22nd Jul 20254411 PMAQI
23rd Jul 20254612 AMAQI
23rd Jul 2025451 AMAQI
23rd Jul 2025422 AMAQI
23rd Jul 2025423 AMAQI
27°C22/33°C
23rd Jul 2025444 AMAQI
23rd Jul 2025465 AMAQI
23rd Jul 2025466 AMAQI
23rd Jul 2025467 AMAQI
23rd Jul 2025458 AMAQI
23rd Jul 2025549 AMAQI
23rd Jul 20255810 AMAQI
23rd Jul 20256211 AMAQI
23rd Jul 20256212 PMAQI
23rd Jul 2025641 PMAQI
23rd Jul 2025642 PMAQI
23rd Jul 2025603 PMAQI
23rd Jul 2025574 PMAQI
23rd Jul 2025595 PMAQI
23rd Jul 2025596 PMAQI
23rd Jul 2025587 PMAQI
23rd Jul 2025548 PMAQI
23rd Jul 2025519 PMAQI
23rd Jul 20254610 PMAQI
23rd Jul 20254811 PMAQI
24th Jul 20255012 AMAQI
24th Jul 2025471 AMAQI
24th Jul 2025442 AMAQI
24th Jul 2025443 AMAQI
26°C21/33°C
24th Jul 2025474 AMAQI
24th Jul 2025505 AMAQI
24th Jul 2025516 AMAQI
24th Jul 2025527 AMAQI
24th Jul 2025518 AMAQI
24th Jul 2025549 AMAQI
24th Jul 20255510 AMAQI
24th Jul 20255611 AMAQI
24th Jul 20255812 PMAQI
24th Jul 2025601 PMAQI
24th Jul 2025642 PMAQI
24th Jul 2025623 PMAQI
24th Jul 2025554 PMAQI
24th Jul 2025515 PMAQI
24th Jul 2025516 PMAQI
24th Jul 2025547 PMAQI
24th Jul 2025558 PMAQI
24th Jul 2025549 PMAQI
24th Jul 20255310 PMAQI
24th Jul 20255211 PMAQI
25th Jul 20255212 AMAQI
25th Jul 2025511 AMAQI
25th Jul 2025482 AMAQI
25th Jul 2025483 AMAQI
27°C21/32°C
25th Jul 2025504 AMAQI
25th Jul 2025525 AMAQI
25th Jul 2025526 AMAQI
25th Jul 2025527 AMAQI
25th Jul 2025528 AMAQI
25th Jul 2025569 AMAQI
25th Jul 20255810 AMAQI
25th Jul 20255911 AMAQI
25th Jul 20256012 PMAQI
25th Jul 2025651 PMAQI
25th Jul 2025662 PMAQI
25th Jul 2025633 PMAQI
25th Jul 2025464 PMAQI
25th Jul 2025375 PMAQI
25th Jul 2025396 PMAQI
25th Jul 2025467 PMAQI
25th Jul 2025528 PMAQI
25th Jul 2025529 PMAQI
25th Jul 20255210 PMAQI
25th Jul 20255411 PMAQI
26th Jul 20255412 AMAQI
26th Jul 2025521 AMAQI
26th Jul 2025502 AMAQI
26th Jul 2025513 AMAQI
26°C21/33°C
26th Jul 2025524 AMAQI
26th Jul 2025535 AMAQI
26th Jul 2025536 AMAQI
26th Jul 2025537 AMAQI
26th Jul 2025538 AMAQI
26th Jul 2025549 AMAQI
26th Jul 20255610 AMAQI
26th Jul 20255611 AMAQI
26th Jul 20255712 PMAQI
26th Jul 2025601 PMAQI
26th Jul 2025602 PMAQI
26th Jul 2025603 PMAQI
26th Jul 2025604 PMAQI
26th Jul 2025555 PMAQI
26th Jul 2025586 PMAQI
26th Jul 2025597 PMAQI
26th Jul 2025568 PMAQI
26th Jul 2025539 PMAQI
26th Jul 20255110 PMAQI
26th Jul 20255211 PMAQI
27th Jul 20255212 AMAQI
27th Jul 2025511 AMAQI
27th Jul 2025522 AMAQI
27th Jul 2025523 AMAQI
26°C21/33°C
27th Jul 2025524 AMAQI
27th Jul 2025545 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 20255512 PMAQI
27th Jul 2025551 PMAQI
27th Jul 2025542 PMAQI
27th Jul 2025593 PMAQI
27th Jul 2025584 PMAQI
27th Jul 2025505 PMAQI
27th Jul 2025496 PMAQI
27th Jul 2025527 PMAQI
27th Jul 2025518 PMAQI
27th Jul 2025509 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 2025535 AMAQI
28th Jul 2025526 AMAQI
28th Jul 2025537 AMAQI
28th Jul 2025538 AMAQI
28th Jul 2025469 AMAQI
28th Jul 20254610 AMAQI
28th Jul 20254711 AMAQI
28th Jul 20254912 PMAQI
28th Jul 2025521 PMAQI
28th Jul 2025522 PMAQI
28th Jul 2025543 PMAQI
28th Jul 2025584 PMAQI
28th Jul 2025545 PMAQI
28th Jul 2025526 PMAQI
28th Jul 2025577 PMAQI
28th Jul 2025548 PMAQI
28th Jul 2025529 PMAQI
28th Jul 20255010 PMAQI
28th Jul 20255011 PMAQI
29th Jul 20254912 AMAQI
29th Jul 2025511 AMAQI
29th Jul 2025522 AMAQI
29th Jul 2025523 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 20255812 PMAQI
29th Jul 2025591 PMAQI
29th Jul 2025582 PMAQI
29th Jul 2025583 PMAQI
29th Jul 2025584 PMAQI
29th Jul 2025565 PMAQI
29th Jul 2025556 PMAQI
29th Jul 2025497 PMAQI
29th Jul 2025448 PMAQI
29th Jul 2025409 PMAQI
29th Jul 20253510 PMAQI
29th Jul 20253711 PMAQI
30th Jul 20253612 AMAQI
30th Jul 2025391 AMAQI
30th Jul 2025462 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 2025399 AMAQI
30th Jul 20252310 AMAQI
30th Jul 20252411 AMAQI
30th Jul 20252612 PMAQI
30th Jul 2025281 PMAQI
30th Jul 2025332 PMAQI
30th Jul 2025383 PMAQI
30th Jul 2025384 PMAQI
30th Jul 2025365 PMAQI
30th Jul 2025376 PMAQI
30th Jul 2025357 PMAQI
30th Jul 2025388 PMAQI
30th Jul 2025409 PMAQI
30th Jul 20254010 PMAQI
30th Jul 20254211 PMAQI
31st Jul 20254412 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 2025446 PMAQI
31st Jul 2025437 PMAQI
31st Jul 2025348 PMAQI
31st Jul 2025509 PMAQI
31st Jul 20253810 PMAQI
31st Jul 20253611 PMAQI
1st Aug 20253212 AMAQI
1st Aug 2025401 AMAQI
1st Aug 2025402 AMAQI
1st Aug 2025423 AMAQI
24°C20/32°C
1st Aug 2025404 AMAQI
1st Aug 2025405 AMAQI
1st Aug 2025426 AMAQI
1st Aug 2025417 AMAQI
1st Aug 2025428 AMAQI
1st Aug 2025429 AMAQI
1st Aug 20253810 AMAQI
1st Aug 20254411 AMAQI
1st Aug 20254712 PMAQI
1st Aug 2025421 PMAQI
1st Aug 2025332 PMAQI
1st Aug 2025363 PMAQI
1st Aug 2025494 PMAQI
1st Aug 2025445 PMAQI
1st Aug 2025446 PMAQI
1st Aug 2025407 PMAQI
1st Aug 2025308 PMAQI
1st Aug 2025329 PMAQI
1st Aug 20253410 PMAQI
1st Aug 20253211 PMAQI
2nd Aug 20253212 AMAQI
2nd Aug 2025361 AMAQI
2nd Aug 2025392 AMAQI
2nd Aug 2025403 AMAQI
24°C19/29°C
2nd Aug 2025424 AMAQI
2nd Aug 2025425 AMAQI
2nd Aug 2025426 AMAQI
2nd Aug 2025397 AMAQI
2nd Aug 2025418 AMAQI
2nd Aug 2025389 AMAQI
2nd Aug 20253610 AMAQI
2nd Aug 20253211 AMAQI
2nd Aug 20252612 PMAQI
2nd Aug 2025351 PMAQI
2nd Aug 2025432 PMAQI
2nd Aug 2025503 PMAQI
2nd Aug 2025424 PMAQI
2nd Aug 2025465 PMAQI
2nd Aug 2025476 PMAQI
2nd Aug 2025507 PMAQI
2nd Aug 2025388 PMAQI
2nd Aug 2025419 PMAQI
2nd Aug 20253710 PMAQI
2nd Aug 20254411 PMAQI
3rd Aug 20253212 AMAQI
3rd Aug 2025371 AMAQI
3rd Aug 2025392 AMAQI
3rd Aug 2025393 AMAQI
27°C22/35°C
3rd Aug 2025404 AMAQI
3rd Aug 2025405 AMAQI
3rd Aug 2025406 AMAQI
3rd Aug 2025407 AMAQI
3rd Aug 2025408 AMAQI
3rd Aug 2025459 AMAQI
3rd Aug 20254710 AMAQI
3rd Aug 20254211 AMAQI
3rd Aug 20255912 PMAQI
3rd Aug 2025591 PMAQI
3rd Aug 2025522 PMAQI
3rd Aug 2025433 PMAQI
3rd Aug 2025544 PMAQI
3rd Aug 2025525 PMAQI
3rd Aug 2025516 PMAQI
3rd Aug 2025587 PMAQI
3rd Aug 2025548 PMAQI
3rd Aug 2025449 PMAQI
3rd Aug 20254510 PMAQI
3rd Aug 20254111 PMAQI
4th Aug 20253612 AMAQI
4th Aug 2025401 AMAQI
4th Aug 2025382 AMAQI
4th Aug 2025443 AMAQI
27°C22/34°C
4th Aug 2025434 AMAQI
4 AM4th Aug 2025455 AMAQI
4th Aug 2025446 AMAQI
4th Aug 2025447 AMAQI
4th Aug 2025458 AMAQI
4th Aug 2025499 AMAQI
4th Aug 20255710 AMAQI
4th Aug 20256311 AMAQI
11 AM4th Aug 20256612 PMAQI
6 PM
11 PM
3 AM
--°C/°C
Day time
Avg. Highest Time
11 AM - 6 PM
50AQI
8 hours / Day
240 hours / Month
Avg. Lowest Time
9 AM - 10 AM
45AQI
2 hours / Day
60 hours / Month
In the last 30 days, during the daytime, the highest AQI was between 11 AM to 6 PM (Avg. 50), while the lowest AQI was between 9 AM to 10 AM (Avg. 45).
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
Imaichi, Nikko, Tochigi, Japan
2025
84%
181
16%
34
Total number of days with different AQI categories in last 216 days in 2025 (149 days remaining)
Good
181 DaysModerate
34 DaysPoor
0 DaysUnhealthy
0 DaysSevere
0 DaysHazardous
0 DaysUnder WHO’s Safe Air Quality Limits: 84%
Health Risk Level:
Low
In 2025, 84% of 216 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
Imaichi, 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
27AQI
27AQI
2nd January 2025
26AQI
26AQI
3rd January 2025
25AQI
25AQI
4th January 2025
25AQI
25AQI
5th January 2025
27AQI
27AQI
6th January 2025
33AQI
33AQI
7th January 2025
24AQI
24AQI
8th January 2025
28AQI
28AQI
9th January 2025
25AQI
25AQI
10th January 2025
24AQI
24AQI
11th January 2025
24AQI
24AQI
12th January 2025
29AQI
29AQI
13th January 2025
27AQI
27AQI
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
34AQI
34AQI
20th January 2025
30AQI
30AQI
21st January 2025
37AQI
37AQI
22nd January 2025
32AQI
32AQI
23rd January 2025
37AQI
37AQI
24th January 2025
37AQI
37AQI
25th January 2025
31AQI
31AQI
26th January 2025
32AQI
32AQI
27th January 2025
30AQI
30AQI
28th January 2025
29AQI
29AQI
29th January 2025
28AQI
28AQI
30th January 2025
28AQI
28AQI
31st January 2025
28AQI
28AQI
1st February 2025
30AQI
30AQI
2nd February 2025
33AQI
33AQI
3rd February 2025
29AQI
29AQI
4th February 2025
31AQI
31AQI
5th February 2025
30AQI
30AQI
6th February 2025
30AQI
30AQI
7th February 2025
31AQI
31AQI
8th February 2025
31AQI
31AQI
9th February 2025
29AQI
29AQI
10th February 2025
30AQI
30AQI
11th February 2025
31AQI
31AQI
12th February 2025
33AQI
33AQI
13th February 2025
32AQI
32AQI
14th February 2025
30AQI
30AQI
15th February 2025
31AQI
31AQI
16th February 2025
40AQI
40AQI
17th February 2025
35AQI
35AQI
18th February 2025
33AQI
33AQI
19th February 2025
31AQI
31AQI
20th February 2025
30AQI
30AQI
21st February 2025
31AQI
31AQI
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
37AQI
37AQI
28th February 2025
44AQI
44AQI
1st March 2025
50AQI
50AQI
2nd March 2025
46AQI
46AQI
3rd March 2025
40AQI
40AQI
4th March 2025
38AQI
38AQI
5th March 2025
26AQI
26AQI
6th March 2025
30AQI
30AQI
7th March 2025
32AQI
32AQI
8th March 2025
37AQI
37AQI
9th March 2025
34AQI
34AQI
10th March 2025
38AQI
38AQI
11th March 2025
42AQI
42AQI
12th March 2025
39AQI
39AQI
13th March 2025
44AQI
44AQI
14th March 2025
33AQI
33AQI
15th March 2025
40AQI
40AQI
16th March 2025
22AQI
22AQI
17th March 2025
22AQI
22AQI
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
60AQI
60AQI
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
26AQI
26AQI
2nd April 2025
23AQI
23AQI
3rd April 2025
20AQI
20AQI
4th April 2025
21AQI
21AQI
5th April 2025
29AQI
29AQI
6th April 2025
26AQI
26AQI
7th April 2025
29AQI
29AQI
8th April 2025
38AQI
38AQI
9th April 2025
28AQI
28AQI
10th April 2025
43AQI
43AQI
11th April 2025
34AQI
34AQI
12th April 2025
40AQI
40AQI
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
67AQI
67AQI
20th April 2025
66AQI
66AQI
21st April 2025
44AQI
44AQI
22nd April 2025
53AQI
53AQI
23rd April 2025
28AQI
28AQI
24th April 2025
38AQI
38AQI
25th April 2025
37AQI
37AQI
26th April 2025
47AQI
47AQI
27th April 2025
45AQI
45AQI
28th April 2025
49AQI
49AQI
29th April 2025
33AQI
33AQI
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
35AQI
35AQI
6th May 2025
27AQI
27AQI
7th May 2025
25AQI
25AQI
8th May 2025
32AQI
32AQI
9th May 2025
35AQI
35AQI
10th May 2025
22AQI
22AQI
11th May 2025
23AQI
23AQI
12th May 2025
21AQI
21AQI
13th May 2025
34AQI
34AQI
14th May 2025
42AQI
42AQI
15th May 2025
46AQI
46AQI
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
66AQI
66AQI
22nd May 2025
58AQI
58AQI
23rd May 2025
50AQI
50AQI
24th May 2025
43AQI
43AQI
25th May 2025
28AQI
28AQI
26th May 2025
31AQI
31AQI
27th May 2025
29AQI
29AQI
28th May 2025
29AQI
29AQI
29th May 2025
39AQI
39AQI
30th May 2025
26AQI
26AQI
31st May 2025
20AQI
20AQI
1st June 2025
22AQI
22AQI
2nd June 2025
35AQI
35AQI
3rd June 2025
32AQI
32AQI
4th June 2025
28AQI
28AQI
5th June 2025
33AQI
33AQI
6th June 2025
46AQI
46AQI
7th June 2025
53AQI
53AQI
8th June 2025
64AQI
64AQI
9th June 2025
59AQI
59AQI
10th June 2025
43AQI
43AQI
11th June 2025
33AQI
33AQI
12th June 2025
39AQI
39AQI
13th June 2025
47AQI
47AQI
14th June 2025
38AQI
38AQI
15th June 2025
31AQI
31AQI
16th June 2025
40AQI
40AQI
17th June 2025
42AQI
42AQI
18th June 2025
42AQI
42AQI
19th June 2025
45AQI
45AQI
20th June 2025
48AQI
48AQI
21st June 2025
48AQI
48AQI
22nd June 2025
54AQI
54AQI
23rd June 2025
45AQI
45AQI
24th June 2025
41AQI
41AQI
25th June 2025
32AQI
32AQI
26th June 2025
31AQI
31AQI
27th June 2025
36AQI
36AQI
28th June 2025
39AQI
39AQI
29th June 2025
46AQI
46AQI
30th June 2025
51AQI
51AQI
1st July 2025
53AQI
53AQI
2nd July 2025
48AQI
48AQI
3rd July 2025
52AQI
52AQI
4th July 2025
51AQI
51AQI
5th July 2025
54AQI
54AQI
6th July 2025
57AQI
57AQI
7th July 2025
68AQI
68AQI
8th July 2025
73AQI
73AQI
9th July 2025
75AQI
75AQI
10th July 2025
60AQI
60AQI
11th July 2025
43AQI
43AQI
12th July 2025
45AQI
45AQI
13th July 2025
50AQI
50AQI
14th July 2025
36AQI
36AQI
15th July 2025
34AQI
34AQI
16th July 2025
39AQI
39AQI
17th July 2025
36AQI
36AQI
18th July 2025
39AQI
39AQI
19th July 2025
38AQI
38AQI
20th July 2025
43AQI
43AQI
21st July 2025
45AQI
45AQI
22nd July 2025
48AQI
48AQI
23rd July 2025
52AQI
52AQI
24th July 2025
52AQI
52AQI
25th July 2025
52AQI
52AQI
26th July 2025
55AQI
55AQI
27th July 2025
52AQI
52AQI
28th July 2025
52AQI
52AQI
29th July 2025
51AQI
51AQI
30th July 2025
40AQI
40AQI
31st July 2025
45AQI
45AQI
1st August 2025
39AQI
39AQI
2nd August 2025
39AQI
39AQI
3rd August 2025
38AQI
38AQI
29AQI
33AQI
39AQI
37AQI
36AQI
41AQI
50AQI
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
15
16
3
181
34
Highest AQI recorded in
July50AQI
Lowest AQI recorded in
January29AQI
202433AQI
31
29
29
1
22
7
29
2
27
2
29
2
31
26
4
30
1
29
1
31
343
20
Highest AQI recorded in
April42AQI
Lowest AQI recorded in
January25AQI
202336AQI
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
December25AQI
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
202033AQI
12
1
20
1
18
21
9
29
2
13
18
19
27
4
27
3
31
217
38
Highest AQI recorded in
August56AQI
Lowest AQI recorded in
December19AQI
Most & Least Polluted Years Over the Last 6 Years
Most Polluted Year Recorded
2025(Avg.)
38AQILeast Polluted Year Recorded
2021(Avg.)
32AQIImaichi's annual 2025 AQI (38) shows an average percentage change of 11.1% (worsened AQI) compared to previous years: 2020 (33), 2021 (32), 2022 (36), 2023 (36), 2024 (33).
