Atobe, Saku, Nagano, 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
Atobe, Saku, Nagano, Japan
2021
2022
2023
2024
2025
AQI
.
Days
AQI Trends: Highest and Lowest
Highest AQI recorded on
5th Aug 2024
67AQILowest AQI recorded on
18th Aug 2021
12AQISame Day Analysis (3rd August ):
On this day, AQI across the 5 years varied significantly: 2025 ranks 2nd highest AQI at 41 of Good air quality, showing improvement over 2024 on the same day.
Download 2024 Annual Data
World Air Quality Report
Day & Night AQI Trend: 4th Aug - 5th Aug 2025
Atobe, Saku, Nagano, Japan
AQI
Day
Night
.
4 AM4th Aug 2025
7 PM
3 AM5th Aug 2025
Day time
Avg. Highest Time
12AMNaNth undefined
AQI
Avg. Lowest Time
12AMNaNth undefined
AQI
Night time
Avg. Highest Time
4PM4th Aug
80AQI
Avg. Lowest Time
3AM5th Aug
43AQI
In the last 24 hours,
Atobe's AQI reached its highest point of 80 at 4 PM during the Night, while the lowest point, 43, was recorded at 3 AM during the Night between 4th Aug and 5th Aug 2025.
Day & Night AQI Trend : Jul - Aug 2025
Atobe, Saku, Nagano, 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 2025534 AMAQI
6th Jul 2025555 AMAQI
6th Jul 2025556 AMAQI
6th Jul 2025557 AMAQI
6th Jul 2025538 AMAQI
6th Jul 2025589 AMAQI
6th Jul 20256210 AMAQI
6th Jul 20256111 AMAQI
6th Jul 20256412 PMAQI
6th Jul 2025571 PMAQI
6th Jul 2025552 PMAQI
6th Jul 2025523 PMAQI
6th Jul 2025524 PMAQI
6th Jul 2025535 PMAQI
6th Jul 2025556 PMAQI
6th Jul 2025597 PMAQI
6th Jul 2025598 PMAQI
6th Jul 2025579 PMAQI
6th Jul 20255710 PMAQI
6th Jul 20255711 PMAQI
7th Jul 20255812 AMAQI
7th Jul 2025561 AMAQI
7th Jul 2025552 AMAQI
7th Jul 2025553 AMAQI
24°C19/31°C
7th Jul 2025554 AMAQI
7th Jul 2025555 AMAQI
7th Jul 2025566 AMAQI
7th Jul 2025567 AMAQI
7th Jul 2025558 AMAQI
7th Jul 2025569 AMAQI
7th Jul 20255910 AMAQI
7th Jul 20256411 AMAQI
7th Jul 20256312 PMAQI
7th Jul 2025611 PMAQI
7th Jul 2025592 PMAQI
7th Jul 2025583 PMAQI
7th Jul 2025604 PMAQI
7th Jul 2025635 PMAQI
7th Jul 2025686 PMAQI
7th Jul 2025667 PMAQI
7th Jul 2025668 PMAQI
7th Jul 2025599 PMAQI
7th Jul 20255910 PMAQI
7th Jul 20255911 PMAQI
8th Jul 20256012 AMAQI
8th Jul 2025571 AMAQI
8th Jul 2025562 AMAQI
8th Jul 2025563 AMAQI
24°C20/30°C
8th Jul 2025564 AMAQI
8th Jul 2025575 AMAQI
8th Jul 2025576 AMAQI
8th Jul 2025577 AMAQI
8th Jul 2025578 AMAQI
8th Jul 2025689 AMAQI
8th Jul 20257910 AMAQI
8th Jul 20258211 AMAQI
8th Jul 20258512 PMAQI
8th Jul 2025751 PMAQI
8th Jul 2025742 PMAQI
8th Jul 2025763 PMAQI
8th Jul 2025784 PMAQI
8th Jul 2025775 PMAQI
8th Jul 2025766 PMAQI
8th Jul 2025727 PMAQI
8th Jul 2025718 PMAQI
8th Jul 2025639 PMAQI
8th Jul 20256110 PMAQI
8th Jul 20256211 PMAQI
9th Jul 20256212 AMAQI
9th Jul 2025611 AMAQI
9th Jul 2025592 AMAQI
9th Jul 2025593 AMAQI
24°C20/30°C
9th Jul 2025594 AMAQI
9th Jul 2025615 AMAQI
9th Jul 2025616 AMAQI
9th Jul 2025617 AMAQI
9th Jul 2025618 AMAQI
9th Jul 2025709 AMAQI
9th Jul 20257610 AMAQI
9th Jul 20257611 AMAQI
9th Jul 20257312 PMAQI
9th Jul 2025741 PMAQI
9th Jul 2025702 PMAQI
9th Jul 2025723 PMAQI
9th Jul 2025784 PMAQI
9th Jul 2025825 PMAQI
9th Jul 2025756 PMAQI
9th Jul 2025667 PMAQI
9th Jul 2025648 PMAQI
9th Jul 2025639 PMAQI
9th Jul 20256210 PMAQI
9th Jul 20256111 PMAQI
10th Jul 20256112 AMAQI
10th Jul 2025621 AMAQI
10th Jul 2025622 AMAQI
10th Jul 2025623 AMAQI
23°C19/29°C
10th Jul 2025624 AMAQI
10th Jul 2025645 AMAQI
10th Jul 2025646 AMAQI
10th Jul 2025647 AMAQI
10th Jul 2025648 AMAQI
10th Jul 2025609 AMAQI
10th Jul 20256210 AMAQI
10th Jul 20256611 AMAQI
10th Jul 20256812 PMAQI
10th Jul 2025651 PMAQI
10th Jul 2025652 PMAQI
10th Jul 2025663 PMAQI
10th Jul 2025674 PMAQI
10th Jul 2025645 PMAQI
10th Jul 2025566 PMAQI
10th Jul 2025527 PMAQI
10th Jul 2025538 PMAQI
10th Jul 2025589 PMAQI
10th Jul 20255710 PMAQI
10th Jul 20255811 PMAQI
11th Jul 20255712 AMAQI
11th Jul 2025601 AMAQI
11th Jul 2025622 AMAQI
11th Jul 2025613 AMAQI
23°C18/29°C
11th Jul 2025624 AMAQI
11th Jul 2025635 AMAQI
11th Jul 2025636 AMAQI
11th Jul 2025647 AMAQI
11th Jul 2025648 AMAQI
11th Jul 2025289 AMAQI
11th Jul 20251910 AMAQI
11th Jul 20251911 AMAQI
11th Jul 20252212 PMAQI
11th Jul 2025371 PMAQI
11th Jul 2025382 PMAQI
11th Jul 2025383 PMAQI
11th Jul 2025394 PMAQI
11th Jul 2025415 PMAQI
11th Jul 2025396 PMAQI
11th Jul 2025377 PMAQI
11th Jul 2025418 PMAQI
11th Jul 2025569 PMAQI
11th Jul 20255610 PMAQI
11th Jul 20255611 PMAQI
12th Jul 20255512 AMAQI
12th Jul 2025561 AMAQI
12th Jul 2025592 AMAQI
12th Jul 2025603 AMAQI
20°C18/23°C
12th Jul 2025594 AMAQI
12th Jul 2025565 AMAQI
12th Jul 2025576 AMAQI
12th Jul 2025577 AMAQI
12th Jul 2025568 AMAQI
12th Jul 2025289 AMAQI
12th Jul 20252010 AMAQI
12th Jul 20252411 AMAQI
12th Jul 20253312 PMAQI
12th Jul 2025481 PMAQI
12th Jul 2025432 PMAQI
12th Jul 2025403 PMAQI
12th Jul 2025414 PMAQI
12th Jul 2025425 PMAQI
12th Jul 2025406 PMAQI
12th Jul 2025417 PMAQI
12th Jul 2025428 PMAQI
12th Jul 2025559 PMAQI
12th Jul 20255410 PMAQI
12th Jul 20255411 PMAQI
13th Jul 20255412 AMAQI
13th Jul 2025561 AMAQI
13th Jul 2025562 AMAQI
13th Jul 2025563 AMAQI
21°C17/26°C
13th Jul 2025564 AMAQI
13th Jul 2025555 AMAQI
13th Jul 2025556 AMAQI
13th Jul 2025557 AMAQI
13th Jul 2025558 AMAQI
13th Jul 2025409 AMAQI
13th Jul 20253010 AMAQI
13th Jul 20253311 AMAQI
13th Jul 20253812 PMAQI
13th Jul 2025441 PMAQI
13th Jul 2025432 PMAQI
13th Jul 2025423 PMAQI
13th Jul 2025434 PMAQI
13th Jul 2025465 PMAQI
13th Jul 2025496 PMAQI
13th Jul 2025527 PMAQI
13th Jul 2025528 PMAQI
13th Jul 2025549 PMAQI
13th Jul 20255410 PMAQI
13th Jul 20255411 PMAQI
14th Jul 20255412 AMAQI
14th Jul 2025541 AMAQI
14th Jul 2025552 AMAQI
14th Jul 2025553 AMAQI
22°C17/29°C
14th Jul 2025554 AMAQI
14th Jul 2025545 AMAQI
14th Jul 2025546 AMAQI
14th Jul 2025547 AMAQI
14th Jul 2025548 AMAQI
14th Jul 2025369 AMAQI
14th Jul 20253010 AMAQI
14th Jul 20252311 AMAQI
14th Jul 20252212 PMAQI
14th Jul 2025331 PMAQI
14th Jul 2025352 PMAQI
14th Jul 2025363 PMAQI
14th Jul 2025344 PMAQI
14th Jul 2025365 PMAQI
14th Jul 2025356 PMAQI
14th Jul 2025327 PMAQI
14th Jul 2025358 PMAQI
14th Jul 2025519 PMAQI
14th Jul 20255010 PMAQI
14th Jul 20255111 PMAQI
15th Jul 20255112 AMAQI
15th Jul 2025521 AMAQI
15th Jul 2025542 AMAQI
15th Jul 2025543 AMAQI
21°C18/27°C
15th Jul 2025534 AMAQI
15th Jul 2025535 AMAQI
15th Jul 2025536 AMAQI
15th Jul 2025527 AMAQI
15th Jul 2025528 AMAQI
15th Jul 2025249 AMAQI
15th Jul 20251410 AMAQI
15th Jul 20251411 AMAQI
15th Jul 20251712 PMAQI
15th Jul 2025281 PMAQI
15th Jul 2025282 PMAQI
15th Jul 2025283 PMAQI
15th Jul 2025294 PMAQI
15th Jul 2025305 PMAQI
15th Jul 2025286 PMAQI
15th Jul 2025277 PMAQI
15th Jul 2025308 PMAQI
15th Jul 2025479 PMAQI
15th Jul 20254610 PMAQI
15th Jul 20254611 PMAQI
16th Jul 20254612 AMAQI
16th Jul 2025491 AMAQI
16th Jul 2025522 AMAQI
16th Jul 2025523 AMAQI
22°C20/24°C
16th Jul 2025524 AMAQI
16th Jul 2025485 AMAQI
16th Jul 2025506 AMAQI
16th Jul 2025507 AMAQI
16th Jul 2025508 AMAQI
16th Jul 2025349 AMAQI
16th Jul 20254010 AMAQI
16th Jul 20254211 AMAQI
16th Jul 20254212 PMAQI
16th Jul 2025441 PMAQI
16th Jul 2025452 PMAQI
16th Jul 2025443 PMAQI
16th Jul 2025414 PMAQI
16th Jul 2025415 PMAQI
16th Jul 2025446 PMAQI
16th Jul 2025427 PMAQI
16th Jul 2025348 PMAQI
16th Jul 2025439 PMAQI
16th Jul 20254110 PMAQI
16th Jul 20254211 PMAQI
17th Jul 20254212 AMAQI
17th Jul 2025441 AMAQI
17th Jul 2025482 AMAQI
17th Jul 2025493 AMAQI
22°C17/28°C
17th Jul 2025474 AMAQI
17th Jul 2025475 AMAQI
17th Jul 2025486 AMAQI
17th Jul 2025487 AMAQI
17th Jul 2025488 AMAQI
17th Jul 2025219 AMAQI
17th Jul 20251610 AMAQI
17th Jul 20251411 AMAQI
17th Jul 20251412 PMAQI
17th Jul 2025251 PMAQI
17th Jul 2025272 PMAQI
17th Jul 2025283 PMAQI
17th Jul 2025314 PMAQI
17th Jul 2025325 PMAQI
17th Jul 2025326 PMAQI
17th Jul 2025347 PMAQI
17th Jul 2025358 PMAQI
17th Jul 2025439 PMAQI
17th Jul 20254310 PMAQI
17th Jul 20254311 PMAQI
18th Jul 20254212 AMAQI
18th Jul 2025441 AMAQI
18th Jul 2025452 AMAQI
18th Jul 2025473 AMAQI
20°C19/24°C
18th Jul 2025464 AMAQI
18th Jul 2025435 AMAQI
18th Jul 2025436 AMAQI
18th Jul 2025437 AMAQI
18th Jul 2025428 AMAQI
18th Jul 2025269 AMAQI
18th Jul 20252510 AMAQI
18th Jul 20252611 AMAQI
18th Jul 20252812 PMAQI
18th Jul 2025341 PMAQI
18th Jul 2025372 PMAQI
18th Jul 2025383 PMAQI
18th Jul 2025374 PMAQI
18th Jul 2025405 PMAQI
18th Jul 2025426 PMAQI
18th Jul 2025417 PMAQI
18th Jul 2025398 PMAQI
18th Jul 2025429 PMAQI
18th Jul 20254210 PMAQI
18th Jul 20254211 PMAQI
19th Jul 20254312 AMAQI
19th Jul 2025431 AMAQI
19th Jul 2025442 AMAQI
19th Jul 2025443 AMAQI
22°C16/29°C
19th Jul 2025434 AMAQI
19th Jul 2025425 AMAQI
19th Jul 2025426 AMAQI
19th Jul 2025447 AMAQI
19th Jul 2025428 AMAQI
19th Jul 2025269 AMAQI
19th Jul 20252610 AMAQI
19th Jul 20253511 AMAQI
19th Jul 20253612 PMAQI
19th Jul 2025381 PMAQI
19th Jul 2025372 PMAQI
19th Jul 2025363 PMAQI
19th Jul 2025374 PMAQI
19th Jul 2025365 PMAQI
19th Jul 2025406 PMAQI
19th Jul 2025397 PMAQI
19th Jul 2025408 PMAQI
19th Jul 2025409 PMAQI
19th Jul 20254010 PMAQI
19th Jul 20254211 PMAQI
20th Jul 20254112 AMAQI
20th Jul 2025421 AMAQI
20th Jul 2025432 AMAQI
20th Jul 2025433 AMAQI
23°C18/30°C
20th Jul 2025434 AMAQI
20th Jul 2025425 AMAQI
20th Jul 2025436 AMAQI
20th Jul 2025427 AMAQI
20th Jul 2025428 AMAQI
20th Jul 2025389 AMAQI
20th Jul 20253810 AMAQI
20th Jul 20253511 AMAQI
20th Jul 20253412 PMAQI
20th Jul 2025341 PMAQI
20th Jul 2025362 PMAQI
20th Jul 2025323 PMAQI
20th Jul 2025324 PMAQI
20th Jul 2025365 PMAQI
20th Jul 2025446 PMAQI
20th Jul 2025427 PMAQI
20th Jul 2025428 PMAQI
20th Jul 2025419 PMAQI
20th Jul 20254010 PMAQI
20th Jul 20254211 PMAQI
21st Jul 20254012 AMAQI
21st Jul 2025401 AMAQI
21st Jul 2025422 AMAQI
21st Jul 2025423 AMAQI
24°C18/32°C
21st Jul 2025424 AMAQI
21st Jul 2025405 AMAQI
21st Jul 2025416 AMAQI
21st Jul 2025427 AMAQI
21st Jul 2025418 AMAQI
21st Jul 2025409 AMAQI
21st Jul 20254610 AMAQI
21st Jul 20254211 AMAQI
21st Jul 20253612 PMAQI
21st Jul 2025381 PMAQI
21st Jul 2025382 PMAQI
21st Jul 2025363 PMAQI
21st Jul 2025394 PMAQI
21st Jul 2025395 PMAQI
21st Jul 2025346 PMAQI
21st Jul 2025337 PMAQI
21st Jul 2025348 PMAQI
21st Jul 2025419 PMAQI
21st Jul 20254110 PMAQI
21st Jul 20253911 PMAQI
22nd Jul 20253912 AMAQI
22nd Jul 2025401 AMAQI
22nd Jul 2025402 AMAQI
22nd Jul 2025403 AMAQI
25°C19/32°C
22nd Jul 2025414 AMAQI
22nd Jul 2025405 AMAQI
22nd Jul 2025406 AMAQI
22nd Jul 2025407 AMAQI
22nd Jul 2025418 AMAQI
22nd Jul 2025389 AMAQI
22nd Jul 20254610 AMAQI
22nd Jul 20255211 AMAQI
22nd Jul 20255212 PMAQI
22nd Jul 2025491 PMAQI
22nd Jul 2025482 PMAQI
22nd Jul 2025473 PMAQI
22nd Jul 2025444 PMAQI
22nd Jul 2025435 PMAQI
22nd Jul 2025466 PMAQI
22nd Jul 2025477 PMAQI
22nd Jul 2025448 PMAQI
22nd Jul 2025429 PMAQI
22nd Jul 20254110 PMAQI
22nd Jul 20254211 PMAQI
23rd Jul 20254212 AMAQI
23rd Jul 2025391 AMAQI
23rd Jul 2025402 AMAQI
23rd Jul 2025403 AMAQI
24°C20/32°C
23rd Jul 2025404 AMAQI
23rd Jul 2025405 AMAQI
23rd Jul 2025406 AMAQI
23rd Jul 2025417 AMAQI
23rd Jul 2025408 AMAQI
23rd Jul 2025409 AMAQI
23rd Jul 20254910 AMAQI
23rd Jul 20255711 AMAQI
23rd Jul 20255612 PMAQI
23rd Jul 2025531 PMAQI
23rd Jul 2025512 PMAQI
23rd Jul 2025483 PMAQI
23rd Jul 2025424 PMAQI
23rd Jul 2025405 PMAQI
23rd Jul 2025416 PMAQI
23rd Jul 2025427 PMAQI
23rd Jul 2025398 PMAQI
23rd Jul 2025429 PMAQI
23rd Jul 20254210 PMAQI
23rd Jul 20254211 PMAQI
24th Jul 20254112 AMAQI
24th Jul 2025411 AMAQI
24th Jul 2025432 AMAQI
24th Jul 2025423 AMAQI
24°C19/31°C
24th Jul 2025434 AMAQI
24th Jul 2025445 AMAQI
24th Jul 2025436 AMAQI
24th Jul 2025437 AMAQI
24th Jul 2025448 AMAQI
24th Jul 2025459 AMAQI
24th Jul 20255310 AMAQI
24th Jul 20255511 AMAQI
24th Jul 20255612 PMAQI
24th Jul 2025531 PMAQI
24th Jul 2025542 PMAQI
24th Jul 2025513 PMAQI
24th Jul 2025444 PMAQI
24th Jul 2025425 PMAQI
24th Jul 2025466 PMAQI
24th Jul 2025457 PMAQI
24th Jul 2025428 PMAQI
24th Jul 2025449 PMAQI
24th Jul 20254210 PMAQI
24th Jul 20254011 PMAQI
25th Jul 20254412 AMAQI
25th Jul 2025421 AMAQI
25th Jul 2025432 AMAQI
25th Jul 2025423 AMAQI
24°C18/32°C
25th Jul 2025434 AMAQI
25th Jul 2025445 AMAQI
25th Jul 2025456 AMAQI
25th Jul 2025447 AMAQI
25th Jul 2025448 AMAQI
25th Jul 2025459 AMAQI
25th Jul 20255410 AMAQI
25th Jul 20255411 AMAQI
25th Jul 20255312 PMAQI
25th Jul 2025511 PMAQI
25th Jul 2025522 PMAQI
25th Jul 2025473 PMAQI
25th Jul 2025424 PMAQI
25th Jul 2025515 PMAQI
25th Jul 2025506 PMAQI
25th Jul 2025467 PMAQI
25th Jul 2025438 PMAQI
25th Jul 2025459 PMAQI
25th Jul 20254310 PMAQI
25th Jul 20254311 PMAQI
26th Jul 20254112 AMAQI
26th Jul 2025421 AMAQI
26th Jul 2025432 AMAQI
26th Jul 2025443 AMAQI
23°C18/31°C
26th Jul 2025454 AMAQI
26th Jul 2025455 AMAQI
26th Jul 2025446 AMAQI
26th Jul 2025447 AMAQI
26th Jul 2025468 AMAQI
26th Jul 2025449 AMAQI
26th Jul 20255410 AMAQI
26th Jul 20255611 AMAQI
26th Jul 20255412 PMAQI
26th Jul 2025541 PMAQI
26th Jul 2025532 PMAQI
26th Jul 2025483 PMAQI
26th Jul 2025364 PMAQI
26th Jul 2025375 PMAQI
26th Jul 2025386 PMAQI
26th Jul 2025397 PMAQI
26th Jul 2025428 PMAQI
26th Jul 2025429 PMAQI
26th Jul 20254210 PMAQI
26th Jul 20254211 PMAQI
27th Jul 20254212 AMAQI
27th Jul 2025421 AMAQI
27th Jul 2025442 AMAQI
27th Jul 2025443 AMAQI
24°C19/32°C
27th Jul 2025454 AMAQI
27th Jul 2025445 AMAQI
27th Jul 2025446 AMAQI
27th Jul 2025447 AMAQI
27th Jul 2025448 AMAQI
27th Jul 2025419 AMAQI
27th Jul 20255210 AMAQI
27th Jul 20255211 AMAQI
27th Jul 20254612 PMAQI
27th Jul 2025421 PMAQI
27th Jul 2025452 PMAQI
27th Jul 2025433 PMAQI
27th Jul 2025404 PMAQI
27th Jul 2025425 PMAQI
27th Jul 2025446 PMAQI
27th Jul 2025477 PMAQI
27th Jul 2025478 PMAQI
27th Jul 2025429 PMAQI
27th Jul 20254110 PMAQI
27th Jul 20254211 PMAQI
28th Jul 20254312 AMAQI
28th Jul 2025421 AMAQI
28th Jul 2025442 AMAQI
28th Jul 2025453 AMAQI
25°C18/32°C
28th Jul 2025444 AMAQI
28th Jul 2025445 AMAQI
28th Jul 2025446 AMAQI
28th Jul 2025437 AMAQI
28th Jul 2025448 AMAQI
28th Jul 2025459 AMAQI
28th Jul 20255010 AMAQI
28th Jul 20255011 AMAQI
28th Jul 20254912 PMAQI
28th Jul 2025481 PMAQI
28th Jul 2025462 PMAQI
28th Jul 2025423 PMAQI
28th Jul 2025404 PMAQI
28th Jul 2025465 PMAQI
28th Jul 2025496 PMAQI
28th Jul 2025537 PMAQI
28th Jul 2025518 PMAQI
28th Jul 2025449 PMAQI
28th Jul 20254410 PMAQI
28th Jul 20254511 PMAQI
29th Jul 20254512 AMAQI
29th Jul 2025421 AMAQI
29th Jul 2025442 AMAQI
29th Jul 2025433 AMAQI
25°C19/32°C
29th Jul 2025444 AMAQI
29th Jul 2025435 AMAQI
29th Jul 2025436 AMAQI
29th Jul 2025447 AMAQI
29th Jul 2025448 AMAQI
29th Jul 2025529 AMAQI
29th Jul 20255810 AMAQI
29th Jul 20255811 AMAQI
29th Jul 20255612 PMAQI
29th Jul 2025521 PMAQI
29th Jul 2025502 PMAQI
29th Jul 2025483 PMAQI
29th Jul 2025484 PMAQI
29th Jul 2025475 PMAQI
29th Jul 2025526 PMAQI
29th Jul 2025537 PMAQI
29th Jul 2025498 PMAQI
29th Jul 2025459 PMAQI
29th Jul 20254510 PMAQI
29th Jul 20254511 PMAQI
30th Jul 20254312 AMAQI
30th Jul 2025431 AMAQI
30th Jul 2025452 AMAQI
30th Jul 2025453 AMAQI
25°C19/32°C
30th Jul 2025454 AMAQI
30th Jul 2025475 AMAQI
30th Jul 2025466 AMAQI
30th Jul 2025467 AMAQI
30th Jul 2025478 AMAQI
30th Jul 2025509 AMAQI
30th Jul 20255510 AMAQI
30th Jul 20255611 AMAQI
30th Jul 20255112 PMAQI
30th Jul 2025471 PMAQI
30th Jul 2025492 PMAQI
30th Jul 2025503 PMAQI
30th Jul 2025494 PMAQI
30th Jul 2025515 PMAQI
30th Jul 2025496 PMAQI
30th Jul 2025457 PMAQI
30th Jul 2025448 PMAQI
30th Jul 2025459 PMAQI
30th Jul 20254510 PMAQI
30th Jul 20254511 PMAQI
31st Jul 20254412 AMAQI
31st Jul 2025441 AMAQI
31st Jul 2025452 AMAQI
31st Jul 2025453 AMAQI
24°C18/31°C
31st Jul 2025464 AMAQI
31st Jul 2025465 AMAQI
31st Jul 2025466 AMAQI
31st Jul 2025467 AMAQI
31st Jul 2025468 AMAQI
31st Jul 2025469 AMAQI
31st Jul 20254610 AMAQI
31st Jul 20254611 AMAQI
31st Jul 20254012 PMAQI
31st Jul 2025421 PMAQI
31st Jul 2025422 PMAQI
31st Jul 2025403 PMAQI
31st Jul 2025434 PMAQI
31st Jul 2025465 PMAQI
31st Jul 2025466 PMAQI
31st Jul 2025477 PMAQI
31st Jul 2025508 PMAQI
31st Jul 2025509 PMAQI
31st Jul 20254110 PMAQI
31st Jul 20254511 PMAQI
1st Aug 20253612 AMAQI
1st Aug 2025441 AMAQI
1st Aug 2025352 AMAQI
1st Aug 2025403 AMAQI
23°C18/30°C
1st Aug 2025394 AMAQI
1st Aug 2025375 AMAQI
1st Aug 2025366 AMAQI
1st Aug 2025377 AMAQI
1st Aug 2025408 AMAQI
1st Aug 2025359 AMAQI
1st Aug 20253510 AMAQI
1st Aug 20254711 AMAQI
1st Aug 20254612 PMAQI
1st Aug 2025501 PMAQI
1st Aug 2025382 PMAQI
1st Aug 2025323 PMAQI
1st Aug 2025444 PMAQI
1st Aug 2025435 PMAQI
1st Aug 2025506 PMAQI
1st Aug 2025427 PMAQI
1st Aug 2025338 PMAQI
1st Aug 2025389 PMAQI
1st Aug 20253710 PMAQI
1st Aug 20253511 PMAQI
2nd Aug 20253612 AMAQI
2nd Aug 2025371 AMAQI
2nd Aug 2025402 AMAQI
2nd Aug 2025423 AMAQI
22°C16/28°C
2nd Aug 2025424 AMAQI
2nd Aug 2025425 AMAQI
2nd Aug 2025426 AMAQI
2nd Aug 2025417 AMAQI
2nd Aug 2025428 AMAQI
2nd Aug 2025469 AMAQI
2nd Aug 20254110 AMAQI
2nd Aug 20254211 AMAQI
2nd Aug 20254212 PMAQI
2nd Aug 2025411 PMAQI
2nd Aug 2025522 PMAQI
2nd Aug 2025503 PMAQI
2nd Aug 2025524 PMAQI
2nd Aug 2025495 PMAQI
2nd Aug 2025466 PMAQI
2nd Aug 2025497 PMAQI
2nd Aug 2025468 PMAQI
2nd Aug 2025439 PMAQI
2nd Aug 20254110 PMAQI
2nd Aug 20254111 PMAQI
3rd Aug 20253412 AMAQI
3rd Aug 2025371 AMAQI
3rd Aug 2025422 AMAQI
3rd Aug 2025403 AMAQI
24°C19/32°C
3rd Aug 2025424 AMAQI
3rd Aug 2025425 AMAQI
3rd Aug 2025406 AMAQI
3rd Aug 2025407 AMAQI
3rd Aug 2025408 AMAQI
3rd Aug 2025419 AMAQI
3rd Aug 20254610 AMAQI
3rd Aug 20254811 AMAQI
3rd Aug 20255512 PMAQI
3rd Aug 2025531 PMAQI
3rd Aug 2025512 PMAQI
3rd Aug 2025483 PMAQI
3rd Aug 2025564 PMAQI
3rd Aug 2025595 PMAQI
3rd Aug 2025566 PMAQI
3rd Aug 2025587 PMAQI
3rd Aug 2025568 PMAQI
3rd Aug 2025459 PMAQI
3rd Aug 20254710 PMAQI
3rd Aug 20254411 PMAQI
4th Aug 20254012 AMAQI
4th Aug 2025391 AMAQI
4th Aug 2025382 AMAQI
4th Aug 2025403 AMAQI
25°C19/32°C
4th Aug 2025454 AMAQI
4th Aug 2025455 AMAQI
4th Aug 2025466 AMAQI
4th Aug 2025457 AMAQI
4th Aug 2025478 AMAQI
4th Aug 2025539 AMAQI
4th Aug 20256110 AMAQI
4th Aug 20256011 AMAQI
4th Aug 20256712 PMAQI
4th Aug 2025681 PMAQI
4th Aug 2025752 PMAQI
4th Aug 2025683 PMAQI
4th Aug 2025804 PMAQI
4th Aug 2025715 PMAQI
4th Aug 2025706 PMAQI
4th Aug 2025647 PMAQI
4th Aug 2025608 PMAQI
4th Aug 2025589 PMAQI
4th Aug 20255510 PMAQI
4th Aug 20255611 PMAQI
5th Aug 20255812 AMAQI
5th Aug 2025481 AMAQI
5th Aug 2025462 AMAQI
5th Aug 2025433 AMAQI
--°C/°C
5th Aug 2025534 AMAQI
4 AM5th Aug 2025525 AMAQI
5th Aug 2025536 AMAQI
5th Aug 2025537 AMAQI
5th Aug 2025538 AMAQI
11 AM
7 PM
11 PM
3 AM
--°C/°C
Day time
Avg. Highest Time
4 AM - 8 AM
48AQI
5 hours / Day
150 hours / Month
Avg. Lowest Time
9 AM
42AQI
1 hours / Day
30 hours / Month
In the last 30 days, during the daytime, the highest AQI was between 4 AM to 8 AM (Avg. 48), while the lowest AQI was between 9 AM to 9 AM (Avg. 42).
Night time
Avg. Highest Time
12 AM - 11 PM
47AQI
8 hours / Day
240 hours / Month
Avg. Lowest Time
12 AM - 11 PM
47AQI
8 hours / Day
240 hours / Month
In the last 30 days, during the daytime, the highest AQI was between 12 AM to 11 PM (Avg. 47), while the lowest AQI was between 12 AM to 11 PM (Avg. 47).
2025 Days Vs Air Quality
Atobe, Saku, Nagano, Japan
2025
87%
188
13%
27
Total number of days with different AQI categories in last 216 days in 2025 (149 days remaining)
Good
188 DaysModerate
27 DaysPoor
0 DaysUnhealthy
0 DaysSevere
0 DaysHazardous
0 DaysUnder WHO’s Safe Air Quality Limits: 87%
Health Risk Level:
Low
In 2025, 87% 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
Atobe, Saku, Nagano, 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
29AQI
29AQI
3rd January 2025
26AQI
26AQI
4th January 2025
25AQI
25AQI
5th January 2025
27AQI
27AQI
6th January 2025
35AQI
35AQI
7th January 2025
27AQI
27AQI
8th January 2025
30AQI
30AQI
9th January 2025
26AQI
26AQI
10th January 2025
24AQI
24AQI
11th January 2025
24AQI
24AQI
12th January 2025
30AQI
30AQI
13th January 2025
27AQI
27AQI
14th January 2025
29AQI
29AQI
15th January 2025
30AQI
30AQI
16th January 2025
28AQI
28AQI
17th January 2025
30AQI
30AQI
18th January 2025
27AQI
27AQI
19th January 2025
32AQI
32AQI
20th January 2025
29AQI
29AQI
21st January 2025
39AQI
39AQI
22nd January 2025
37AQI
37AQI
23rd January 2025
47AQI
47AQI
24th January 2025
50AQI
50AQI
25th January 2025
39AQI
39AQI
26th January 2025
37AQI
37AQI
27th January 2025
31AQI
31AQI
28th January 2025
38AQI
38AQI
29th January 2025
35AQI
35AQI
30th January 2025
38AQI
38AQI
31st January 2025
32AQI
32AQI
1st February 2025
42AQI
42AQI
2nd February 2025
47AQI
47AQI
3rd February 2025
44AQI
44AQI
4th February 2025
38AQI
38AQI
5th February 2025
36AQI
36AQI
6th February 2025
32AQI
32AQI
7th February 2025
34AQI
34AQI
8th February 2025
31AQI
31AQI
9th February 2025
30AQI
30AQI
10th February 2025
30AQI
30AQI
11th February 2025
32AQI
32AQI
12th February 2025
32AQI
32AQI
13th February 2025
32AQI
32AQI
14th February 2025
39AQI
39AQI
15th February 2025
31AQI
31AQI
16th February 2025
41AQI
41AQI
17th February 2025
40AQI
40AQI
18th February 2025
35AQI
35AQI
19th February 2025
31AQI
31AQI
20th February 2025
28AQI
28AQI
21st February 2025
29AQI
29AQI
22nd February 2025
29AQI
29AQI
23rd February 2025
29AQI
29AQI
24th February 2025
30AQI
30AQI
25th February 2025
34AQI
34AQI
26th February 2025
34AQI
34AQI
27th February 2025
41AQI
41AQI
28th February 2025
43AQI
43AQI
1st March 2025
48AQI
48AQI
2nd March 2025
48AQI
48AQI
3rd March 2025
36AQI
36AQI
4th March 2025
35AQI
35AQI
5th March 2025
29AQI
29AQI
6th March 2025
32AQI
32AQI
7th March 2025
34AQI
34AQI
8th March 2025
39AQI
39AQI
9th March 2025
38AQI
38AQI
10th March 2025
38AQI
38AQI
11th March 2025
45AQI
45AQI
12th March 2025
36AQI
36AQI
13th March 2025
45AQI
45AQI
14th March 2025
40AQI
40AQI
15th March 2025
40AQI
40AQI
16th March 2025
23AQI
23AQI
17th March 2025
22AQI
22AQI
18th March 2025
24AQI
24AQI
19th March 2025
19AQI
19AQI
20th March 2025
26AQI
26AQI
21st March 2025
40AQI
40AQI
22nd March 2025
46AQI
46AQI
23rd March 2025
58AQI
58AQI
24th March 2025
59AQI
59AQI
25th March 2025
76AQI
76AQI
26th March 2025
82AQI
82AQI
27th March 2025
71AQI
71AQI
28th March 2025
45AQI
45AQI
29th March 2025
37AQI
37AQI
30th March 2025
37AQI
37AQI
31st March 2025
32AQI
32AQI
1st April 2025
27AQI
27AQI
2nd April 2025
25AQI
25AQI
3rd April 2025
21AQI
21AQI
4th April 2025
24AQI
24AQI
5th April 2025
34AQI
34AQI
6th April 2025
28AQI
28AQI
7th April 2025
33AQI
33AQI
8th April 2025
41AQI
41AQI
9th April 2025
26AQI
26AQI
10th April 2025
48AQI
48AQI
11th April 2025
38AQI
38AQI
12th April 2025
47AQI
47AQI
13th April 2025
23AQI
23AQI
14th April 2025
30AQI
30AQI
15th April 2025
21AQI
21AQI
16th April 2025
25AQI
25AQI
17th April 2025
44AQI
44AQI
18th April 2025
53AQI
53AQI
19th April 2025
68AQI
68AQI
20th April 2025
55AQI
55AQI
21st April 2025
42AQI
42AQI
22nd April 2025
52AQI
52AQI
23rd April 2025
28AQI
28AQI
24th April 2025
34AQI
34AQI
25th April 2025
36AQI
36AQI
26th April 2025
46AQI
46AQI
27th April 2025
45AQI
45AQI
28th April 2025
47AQI
47AQI
29th April 2025
36AQI
36AQI
30th April 2025
52AQI
52AQI
1st May 2025
47AQI
47AQI
2nd May 2025
31AQI
31AQI
3rd May 2025
35AQI
35AQI
4th May 2025
33AQI
33AQI
5th May 2025
39AQI
39AQI
6th May 2025
26AQI
26AQI
7th May 2025
28AQI
28AQI
8th May 2025
34AQI
34AQI
9th May 2025
37AQI
37AQI
10th May 2025
25AQI
25AQI
11th May 2025
26AQI
26AQI
12th May 2025
26AQI
26AQI
13th May 2025
37AQI
37AQI
14th May 2025
44AQI
44AQI
15th May 2025
47AQI
47AQI
16th May 2025
50AQI
50AQI
17th May 2025
32AQI
32AQI
18th May 2025
43AQI
43AQI
19th May 2025
38AQI
38AQI
20th May 2025
59AQI
59AQI
21st May 2025
63AQI
63AQI
22nd May 2025
58AQI
58AQI
23rd May 2025
54AQI
54AQI
24th May 2025
44AQI
44AQI
25th May 2025
28AQI
28AQI
26th May 2025
31AQI
31AQI
27th May 2025
33AQI
33AQI
28th May 2025
29AQI
29AQI
29th May 2025
38AQI
38AQI
30th May 2025
26AQI
26AQI
31st May 2025
21AQI
21AQI
1st June 2025
21AQI
21AQI
2nd June 2025
34AQI
34AQI
3rd June 2025
24AQI
24AQI
4th June 2025
30AQI
30AQI
5th June 2025
36AQI
36AQI
6th June 2025
45AQI
45AQI
7th June 2025
49AQI
49AQI
8th June 2025
57AQI
57AQI
9th June 2025
56AQI
56AQI
10th June 2025
36AQI
36AQI
11th June 2025
29AQI
29AQI
12th June 2025
36AQI
36AQI
13th June 2025
45AQI
45AQI
14th June 2025
35AQI
35AQI
15th June 2025
29AQI
29AQI
16th June 2025
29AQI
29AQI
17th June 2025
36AQI
36AQI
18th June 2025
41AQI
41AQI
19th June 2025
46AQI
46AQI
20th June 2025
49AQI
49AQI
21st June 2025
52AQI
52AQI
22nd June 2025
55AQI
55AQI
23rd June 2025
47AQI
47AQI
24th June 2025
45AQI
45AQI
25th June 2025
44AQI
44AQI
26th June 2025
41AQI
41AQI
27th June 2025
45AQI
45AQI
28th June 2025
45AQI
45AQI
29th June 2025
49AQI
49AQI
30th June 2025
53AQI
53AQI
1st July 2025
54AQI
54AQI
2nd July 2025
49AQI
49AQI
3rd July 2025
50AQI
50AQI
4th July 2025
52AQI
52AQI
5th July 2025
54AQI
54AQI
6th July 2025
56AQI
56AQI
7th July 2025
59AQI
59AQI
8th July 2025
65AQI
65AQI
9th July 2025
66AQI
66AQI
10th July 2025
61AQI
61AQI
11th July 2025
49AQI
49AQI
12th July 2025
49AQI
49AQI
13th July 2025
50AQI
50AQI
14th July 2025
45AQI
45AQI
15th July 2025
41AQI
41AQI
16th July 2025
45AQI
45AQI
17th July 2025
38AQI
38AQI
18th July 2025
40AQI
40AQI
19th July 2025
40AQI
40AQI
20th July 2025
40AQI
40AQI
21st July 2025
40AQI
40AQI
22nd July 2025
43AQI
43AQI
23rd July 2025
43AQI
43AQI
24th July 2025
45AQI
45AQI
25th July 2025
46AQI
46AQI
26th July 2025
44AQI
44AQI
27th July 2025
44AQI
44AQI
28th July 2025
45AQI
45AQI
29th July 2025
48AQI
48AQI
30th July 2025
46AQI
46AQI
31st July 2025
45AQI
45AQI
1st August 2025
38AQI
38AQI
2nd August 2025
42AQI
42AQI
3rd August 2025
41AQI
41AQI
32AQI
35AQI
41AQI
38AQI
37AQI
41AQI
48AQI
40AQI
No. of days
Jan.Feb.Mar.Apr.MayJun.Jul.Aug.Sep.Oct.Nov.Dec.Total Days
202539AQI
31
28
26
5
25
5
27
4
25
5
23
8
3
188
27
Highest AQI recorded in
July48AQI
Lowest AQI recorded in
January32AQI
202432AQI
31
29
29
1
30
29
2
21
9
28
3
27
4
28
2
31
30
31
344
21
Highest AQI recorded in
June44AQI
Lowest AQI recorded in
February26AQI
202332AQI
31
28
28
3
27
3
26
5
27
3
21
10
31
30
31
29
31
340
24
Highest AQI recorded in
July43AQI
Lowest AQI recorded in
September22AQI
202234AQI
30
21
28
3
23
6
26
5
24
6
17
4
1
28
29
2
29
1
31
287
27
Highest AQI recorded in
April43AQI
Lowest AQI recorded in
August16AQI
202130AQI
31
27
1
28
1
21
30
1
26
4
26
5
30
1
30
31
28
2
31
339
15
Highest AQI recorded in
June41AQI
Lowest AQI recorded in
January20AQI
202028AQI
13
18
3
18
25
5
30
1
21
10
19
28
3
24
6
31
227
28
Highest AQI recorded in
August46AQI
Lowest AQI recorded in
July17AQI
Most & Least Polluted Years Over the Last 6 Years
Most Polluted Year Recorded
2025(Avg.)
39AQILeast Polluted Year Recorded
2020(Avg.)
28AQIAtobe's annual 2025 AQI (39) shows an average percentage change of 25.5% (worsened AQI) compared to previous years: 2020 (28), 2021 (30), 2022 (34), 2023 (32), 2024 (32).
