Iwamurada, 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
Iwamurada, Saku, Nagano, Japan
2024
2025
AQI
.
Days
AQI Trends: Highest and Lowest
Highest AQI recorded on
4th Aug 2024
56AQILowest AQI recorded on
29th Aug 2024
21AQISame Day Analysis (6th August ):
On this day, AQI across the 2 years varied significantly: 2025 ranks 1st highest AQI at 51 of Moderate air quality on the same day.
Download 2024 Annual Data
World Air Quality Report
Day & Night AQI Trend: 6th Aug - 7th Aug 2025
Iwamurada, Saku, Nagano, Japan
AQI
Day
Night
.
4 AM6th Aug 2025
7 PM
3 AM7th Aug 2025
Day time
Avg. Highest Time
12AMNaNth undefined
AQI
Avg. Lowest Time
12AMNaNth undefined
AQI
Night time
Avg. Highest Time
4AM6th Aug
52AQI
Avg. Lowest Time
10AM6th Aug
30AQI
In the last 24 hours,
Iwamurada's AQI reached its highest point of 52 at 4 AM during the Night, while the lowest point, 30, was recorded at 10 AM during the Night between 6th Aug and 7th Aug 2025.
Day & Night AQI Trend : Jul - Aug 2025
Iwamurada, Saku, Nagano, Japan
JulAug
08th - 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 - 06th06th - 07th07th
Day
Night
8th Jul 2025564 AMAQI
8th Jul 2025575 AMAQI
8th Jul 2025576 AMAQI
8th Jul 2025577 AMAQI
8th Jul 2025578 AMAQI
8th Jul 2025669 AMAQI
8th Jul 20258010 AMAQI
8th Jul 20258211 AMAQI
8th Jul 20258312 PMAQI
8th Jul 2025761 PMAQI
8th Jul 2025742 PMAQI
8th Jul 2025773 PMAQI
8th Jul 2025784 PMAQI
8th Jul 2025775 PMAQI
8th Jul 2025746 PMAQI
8th Jul 2025717 PMAQI
8th Jul 2025708 PMAQI
8th Jul 2025639 PMAQI
8th Jul 20256010 PMAQI
8th Jul 20256211 PMAQI
9th Jul 20256212 AMAQI
9th Jul 2025611 AMAQI
9th Jul 2025592 AMAQI
9th Jul 2025593 AMAQI
22°C18/25°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 20257411 AMAQI
9th Jul 20257312 PMAQI
9th Jul 2025731 PMAQI
9th Jul 2025702 PMAQI
9th Jul 2025713 PMAQI
9th Jul 2025764 PMAQI
9th Jul 2025845 PMAQI
9th Jul 2025756 PMAQI
9th Jul 2025697 PMAQI
9th Jul 2025658 PMAQI
9th Jul 2025629 PMAQI
9th Jul 20256110 PMAQI
9th Jul 20256111 PMAQI
10th Jul 20256012 AMAQI
10th Jul 2025611 AMAQI
10th Jul 2025612 AMAQI
10th Jul 2025623 AMAQI
22°C17/25°C
10th Jul 2025624 AMAQI
10th Jul 2025635 AMAQI
10th Jul 2025646 AMAQI
10th Jul 2025647 AMAQI
10th Jul 2025648 AMAQI
10th Jul 2025619 AMAQI
10th Jul 20256310 AMAQI
10th Jul 20256511 AMAQI
10th Jul 20256812 PMAQI
10th Jul 2025661 PMAQI
10th Jul 2025652 PMAQI
10th Jul 2025673 PMAQI
10th Jul 2025674 PMAQI
10th Jul 2025645 PMAQI
10th Jul 2025566 PMAQI
10th Jul 2025527 PMAQI
10th Jul 2025528 PMAQI
10th Jul 2025569 PMAQI
10th Jul 20255510 PMAQI
10th Jul 20255611 PMAQI
11th Jul 20255612 AMAQI
11th Jul 2025591 AMAQI
11th Jul 2025602 AMAQI
11th Jul 2025613 AMAQI
20°C17/24°C
11th Jul 2025614 AMAQI
11th Jul 2025625 AMAQI
11th Jul 2025636 AMAQI
11th Jul 2025637 AMAQI
11th Jul 2025638 AMAQI
11th Jul 2025289 AMAQI
11th Jul 20251910 AMAQI
11th Jul 20251811 AMAQI
11th Jul 20252212 PMAQI
11th Jul 2025361 PMAQI
11th Jul 2025382 PMAQI
11th Jul 2025383 PMAQI
11th Jul 2025404 PMAQI
11th Jul 2025405 PMAQI
11th Jul 2025396 PMAQI
11th Jul 2025387 PMAQI
11th Jul 2025428 PMAQI
11th Jul 2025559 PMAQI
11th Jul 20255510 PMAQI
11th Jul 20255611 PMAQI
12th Jul 20255512 AMAQI
12th Jul 2025561 AMAQI
12th Jul 2025592 AMAQI
12th Jul 2025593 AMAQI
18°C15/21°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 20252110 AMAQI
12th Jul 20252611 AMAQI
12th Jul 20253112 PMAQI
12th Jul 2025461 PMAQI
12th Jul 2025432 PMAQI
12th Jul 2025403 PMAQI
12th Jul 2025424 PMAQI
12th Jul 2025445 PMAQI
12th Jul 2025416 PMAQI
12th Jul 2025447 PMAQI
12th Jul 2025458 PMAQI
12th Jul 2025549 PMAQI
12th Jul 20255410 PMAQI
12th Jul 20255411 PMAQI
13th Jul 20255412 AMAQI
13th Jul 2025561 AMAQI
13th Jul 2025562 AMAQI
13th Jul 2025573 AMAQI
20°C14/25°C
13th Jul 2025564 AMAQI
13th Jul 2025555 AMAQI
13th Jul 2025556 AMAQI
13th Jul 2025557 AMAQI
13th Jul 2025558 AMAQI
13th Jul 2025419 AMAQI
13th Jul 20253110 AMAQI
13th Jul 20253211 AMAQI
13th Jul 20253812 PMAQI
13th Jul 2025421 PMAQI
13th Jul 2025422 PMAQI
13th Jul 2025423 PMAQI
13th Jul 2025444 PMAQI
13th Jul 2025475 PMAQI
13th Jul 2025516 PMAQI
13th Jul 2025517 PMAQI
13th Jul 2025528 PMAQI
13th Jul 2025549 PMAQI
13th Jul 20255410 PMAQI
13th Jul 20255311 PMAQI
14th Jul 20255412 AMAQI
14th Jul 2025541 AMAQI
14th Jul 2025542 AMAQI
14th Jul 2025553 AMAQI
21°C15/28°C
14th Jul 2025544 AMAQI
14th Jul 2025545 AMAQI
14th Jul 2025546 AMAQI
14th Jul 2025547 AMAQI
14th Jul 2025548 AMAQI
14th Jul 2025379 AMAQI
14th Jul 20253010 AMAQI
14th Jul 20252311 AMAQI
14th Jul 20251912 PMAQI
14th Jul 2025321 PMAQI
14th Jul 2025352 PMAQI
14th Jul 2025363 PMAQI
14th Jul 2025344 PMAQI
14th Jul 2025345 PMAQI
14th Jul 2025336 PMAQI
14th Jul 2025317 PMAQI
14th Jul 2025368 PMAQI
14th Jul 2025519 PMAQI
14th Jul 20255010 PMAQI
14th Jul 20255111 PMAQI
15th Jul 20255212 AMAQI
15th Jul 2025521 AMAQI
15th Jul 2025532 AMAQI
15th Jul 2025543 AMAQI
21°C18/26°C
15th Jul 2025544 AMAQI
15th Jul 2025535 AMAQI
15th Jul 2025526 AMAQI
15th Jul 2025527 AMAQI
15th Jul 2025528 AMAQI
15th Jul 2025259 AMAQI
15th Jul 20251510 AMAQI
15th Jul 20251611 AMAQI
15th Jul 20251912 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 2025318 PMAQI
15th Jul 2025469 PMAQI
15th Jul 20254610 PMAQI
15th Jul 20254511 PMAQI
16th Jul 20254712 AMAQI
16th Jul 2025501 AMAQI
16th Jul 2025522 AMAQI
16th Jul 2025523 AMAQI
19°C17/21°C
16th Jul 2025524 AMAQI
16th Jul 2025485 AMAQI
16th Jul 2025506 AMAQI
16th Jul 2025507 AMAQI
16th Jul 2025508 AMAQI
16th Jul 2025359 AMAQI
16th Jul 20253910 AMAQI
16th Jul 20254011 AMAQI
16th Jul 20254212 PMAQI
16th Jul 2025431 PMAQI
16th Jul 2025472 PMAQI
16th Jul 2025443 PMAQI
16th Jul 2025444 PMAQI
16th Jul 2025445 PMAQI
16th Jul 2025456 PMAQI
16th Jul 2025437 PMAQI
16th Jul 2025368 PMAQI
16th Jul 2025449 PMAQI
16th Jul 20254310 PMAQI
16th Jul 20254211 PMAQI
17th Jul 20254312 AMAQI
17th Jul 2025441 AMAQI
17th Jul 2025492 AMAQI
17th Jul 2025483 AMAQI
20°C15/25°C
17th Jul 2025484 AMAQI
17th Jul 2025475 AMAQI
17th Jul 2025486 AMAQI
17th Jul 2025487 AMAQI
17th Jul 2025488 AMAQI
17th Jul 2025229 AMAQI
17th Jul 20251610 AMAQI
17th Jul 20251411 AMAQI
17th Jul 20251612 PMAQI
17th Jul 2025261 PMAQI
17th Jul 2025282 PMAQI
17th Jul 2025293 PMAQI
17th Jul 2025304 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 20254312 AMAQI
18th Jul 2025461 AMAQI
18th Jul 2025462 AMAQI
18th Jul 2025483 AMAQI
18°C16/20°C
18th Jul 2025464 AMAQI
18th Jul 2025445 AMAQI
18th Jul 2025436 AMAQI
18th Jul 2025427 AMAQI
18th Jul 2025428 AMAQI
18th Jul 2025259 AMAQI
18th Jul 20252410 AMAQI
18th Jul 20252511 AMAQI
18th Jul 20252712 PMAQI
18th Jul 2025351 PMAQI
18th Jul 2025372 PMAQI
18th Jul 2025383 PMAQI
18th Jul 2025414 PMAQI
18th Jul 2025435 PMAQI
18th Jul 2025436 PMAQI
18th Jul 2025427 PMAQI
18th Jul 2025408 PMAQI
18th Jul 2025429 PMAQI
18th Jul 20254210 PMAQI
18th Jul 20254311 PMAQI
19th Jul 20254212 AMAQI
19th Jul 2025441 AMAQI
19th Jul 2025442 AMAQI
19th Jul 2025453 AMAQI
20°C14/25°C
19th Jul 2025444 AMAQI
19th Jul 2025435 AMAQI
19th Jul 2025426 AMAQI
19th Jul 2025427 AMAQI
19th Jul 2025428 AMAQI
19th Jul 2025289 AMAQI
19th Jul 20252610 AMAQI
19th Jul 20253411 AMAQI
19th Jul 20253512 PMAQI
19th Jul 2025361 PMAQI
19th Jul 2025382 PMAQI
19th Jul 2025383 PMAQI
19th Jul 2025394 PMAQI
19th Jul 2025415 PMAQI
19th Jul 2025436 PMAQI
19th Jul 2025417 PMAQI
19th Jul 2025408 PMAQI
19th Jul 2025419 PMAQI
19th Jul 20254110 PMAQI
19th Jul 20254211 PMAQI
20th Jul 20254212 AMAQI
20th Jul 2025431 AMAQI
20th Jul 2025442 AMAQI
20th Jul 2025443 AMAQI
21°C16/26°C
20th Jul 2025434 AMAQI
20th Jul 2025435 AMAQI
20th Jul 2025446 AMAQI
20th Jul 2025437 AMAQI
20th Jul 2025448 AMAQI
20th Jul 2025399 AMAQI
20th Jul 20253710 AMAQI
20th Jul 20253411 AMAQI
20th Jul 20253212 PMAQI
20th Jul 2025341 PMAQI
20th Jul 2025372 PMAQI
20th Jul 2025353 PMAQI
20th Jul 2025344 PMAQI
20th Jul 2025395 PMAQI
20th Jul 2025466 PMAQI
20th Jul 2025447 PMAQI
20th Jul 2025428 PMAQI
20th Jul 2025419 PMAQI
20th Jul 20254110 PMAQI
20th Jul 20254211 PMAQI
21st Jul 20254312 AMAQI
21st Jul 2025421 AMAQI
21st Jul 2025422 AMAQI
21st Jul 2025423 AMAQI
22°C16/28°C
21st Jul 2025424 AMAQI
21st Jul 2025425 AMAQI
21st Jul 2025426 AMAQI
21st Jul 2025437 AMAQI
21st Jul 2025428 AMAQI
21st Jul 2025409 AMAQI
21st Jul 20254510 AMAQI
21st Jul 20253811 AMAQI
21st Jul 20253612 PMAQI
21st Jul 2025381 PMAQI
21st Jul 2025382 PMAQI
21st Jul 2025373 PMAQI
21st Jul 2025404 PMAQI
21st Jul 2025405 PMAQI
21st Jul 2025356 PMAQI
21st Jul 2025357 PMAQI
21st Jul 2025358 PMAQI
21st Jul 2025429 PMAQI
21st Jul 20254110 PMAQI
21st Jul 20254211 PMAQI
22nd Jul 20254212 AMAQI
22nd Jul 2025411 AMAQI
22nd Jul 2025422 AMAQI
22nd Jul 2025413 AMAQI
22°C17/27°C
22nd Jul 2025424 AMAQI
22nd Jul 2025415 AMAQI
22nd Jul 2025406 AMAQI
22nd Jul 2025417 AMAQI
22nd Jul 2025418 AMAQI
22nd Jul 2025399 AMAQI
22nd Jul 20254810 AMAQI
22nd Jul 20255211 AMAQI
22nd Jul 20255212 PMAQI
22nd Jul 2025521 PMAQI
22nd Jul 2025492 PMAQI
22nd Jul 2025483 PMAQI
22nd Jul 2025464 PMAQI
22nd Jul 2025445 PMAQI
22nd Jul 2025486 PMAQI
22nd Jul 2025487 PMAQI
22nd Jul 2025478 PMAQI
22nd Jul 2025439 PMAQI
22nd Jul 20254210 PMAQI
22nd Jul 20254311 PMAQI
23rd Jul 20254412 AMAQI
23rd Jul 2025411 AMAQI
23rd Jul 2025402 AMAQI
23rd Jul 2025403 AMAQI
22°C18/27°C
23rd Jul 2025404 AMAQI
23rd Jul 2025415 AMAQI
23rd Jul 2025426 AMAQI
23rd Jul 2025427 AMAQI
23rd Jul 2025418 AMAQI
23rd Jul 2025429 AMAQI
23rd Jul 20255010 AMAQI
23rd Jul 20255411 AMAQI
23rd Jul 20255412 PMAQI
23rd Jul 2025541 PMAQI
23rd Jul 2025512 PMAQI
23rd Jul 2025493 PMAQI
23rd Jul 2025444 PMAQI
23rd Jul 2025425 PMAQI
23rd Jul 2025456 PMAQI
23rd Jul 2025467 PMAQI
23rd Jul 2025388 PMAQI
23rd Jul 2025429 PMAQI
23rd Jul 20254410 PMAQI
23rd Jul 20254511 PMAQI
24th Jul 20254212 AMAQI
24th Jul 2025431 AMAQI
24th Jul 2025432 AMAQI
24th Jul 2025423 AMAQI
21°C17/26°C
24th Jul 2025434 AMAQI
24th Jul 2025445 AMAQI
24th Jul 2025446 AMAQI
24th Jul 2025447 AMAQI
24th Jul 2025448 AMAQI
24th Jul 2025459 AMAQI
24th Jul 20255310 AMAQI
24th Jul 20255411 AMAQI
24th Jul 20255512 PMAQI
24th Jul 2025531 PMAQI
24th Jul 2025542 PMAQI
24th Jul 2025543 PMAQI
24th Jul 2025464 PMAQI
24th Jul 2025465 PMAQI
24th Jul 2025476 PMAQI
24th Jul 2025487 PMAQI
24th Jul 2025498 PMAQI
24th Jul 2025469 PMAQI
24th Jul 20254610 PMAQI
24th Jul 20254911 PMAQI
25th Jul 20254612 AMAQI
25th Jul 2025421 AMAQI
25th Jul 2025432 AMAQI
25th Jul 2025433 AMAQI
22°C17/27°C
25th Jul 2025434 AMAQI
25th Jul 2025455 AMAQI
25th Jul 2025466 AMAQI
25th Jul 2025447 AMAQI
25th Jul 2025458 AMAQI
25th Jul 2025469 AMAQI
25th Jul 20255410 AMAQI
25th Jul 20255411 AMAQI
25th Jul 20255412 PMAQI
25th Jul 2025541 PMAQI
25th Jul 2025552 PMAQI
25th Jul 2025483 PMAQI
25th Jul 2025424 PMAQI
25th Jul 2025525 PMAQI
25th Jul 2025536 PMAQI
25th Jul 2025517 PMAQI
25th Jul 2025498 PMAQI
25th Jul 2025509 PMAQI
25th Jul 20255010 PMAQI
25th Jul 20255011 PMAQI
26th Jul 20255112 AMAQI
26th Jul 2025461 AMAQI
26th Jul 2025442 AMAQI
26th Jul 2025453 AMAQI
21°C15/27°C
26th Jul 2025464 AMAQI
26th Jul 2025465 AMAQI
26th Jul 2025456 AMAQI
26th Jul 2025467 AMAQI
26th Jul 2025468 AMAQI
26th Jul 2025479 AMAQI
26th Jul 20255410 AMAQI
26th Jul 20255611 AMAQI
26th Jul 20255512 PMAQI
26th Jul 2025541 PMAQI
26th Jul 2025542 PMAQI
26th Jul 2025493 PMAQI
26th Jul 2025394 PMAQI
26th Jul 2025385 PMAQI
26th Jul 2025436 PMAQI
26th Jul 2025407 PMAQI
26th Jul 2025428 PMAQI
26th Jul 2025449 PMAQI
26th Jul 20254410 PMAQI
26th Jul 20254611 PMAQI
27th Jul 20254612 AMAQI
27th Jul 2025451 AMAQI
27th Jul 2025462 AMAQI
27th Jul 2025463 AMAQI
21°C17/28°C
27th Jul 2025474 AMAQI
27th Jul 2025465 AMAQI
27th Jul 2025466 AMAQI
27th Jul 2025467 AMAQI
27th Jul 2025468 AMAQI
27th Jul 2025419 AMAQI
27th Jul 20255010 AMAQI
27th Jul 20255111 AMAQI
27th Jul 20254712 PMAQI
27th Jul 2025441 PMAQI
27th Jul 2025462 PMAQI
27th Jul 2025443 PMAQI
27th Jul 2025404 PMAQI
27th Jul 2025425 PMAQI
27th Jul 2025486 PMAQI
27th Jul 2025487 PMAQI
27th Jul 2025488 PMAQI
27th Jul 2025439 PMAQI
27th Jul 20254210 PMAQI
27th Jul 20254211 PMAQI
28th Jul 20254312 AMAQI
28th Jul 2025441 AMAQI
28th Jul 2025462 AMAQI
28th Jul 2025463 AMAQI
22°C17/27°C
28th Jul 2025464 AMAQI
28th Jul 2025465 AMAQI
28th Jul 2025466 AMAQI
28th Jul 2025467 AMAQI
28th Jul 2025458 AMAQI
28th Jul 2025449 AMAQI
28th Jul 20254610 AMAQI
28th Jul 20254911 AMAQI
28th Jul 20254412 PMAQI
28th Jul 2025451 PMAQI
28th Jul 2025452 PMAQI
28th Jul 2025423 PMAQI
28th Jul 2025404 PMAQI
28th Jul 2025495 PMAQI
28th Jul 2025516 PMAQI
28th Jul 2025547 PMAQI
28th Jul 2025528 PMAQI
28th Jul 2025469 PMAQI
28th Jul 20254510 PMAQI
28th Jul 20254711 PMAQI
29th Jul 20254512 AMAQI
29th Jul 2025441 AMAQI
29th Jul 2025452 AMAQI
29th Jul 2025443 AMAQI
22°C17/27°C
29th Jul 2025444 AMAQI
29th Jul 2025435 AMAQI
29th Jul 2025446 AMAQI
29th Jul 2025447 AMAQI
29th Jul 2025448 AMAQI
29th Jul 2025529 AMAQI
29th Jul 20255810 AMAQI
29th Jul 20255811 AMAQI
29th Jul 20255512 PMAQI
29th Jul 2025531 PMAQI
29th Jul 2025522 PMAQI
29th Jul 2025503 PMAQI
29th Jul 2025514 PMAQI
29th Jul 2025515 PMAQI
29th Jul 2025536 PMAQI
29th Jul 2025537 PMAQI
29th Jul 2025508 PMAQI
29th Jul 2025479 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
23°C19/29°C
30th Jul 2025454 AMAQI
30th Jul 2025465 AMAQI
30th Jul 2025476 AMAQI
30th Jul 2025477 AMAQI
30th Jul 2025478 AMAQI
30th Jul 2025489 AMAQI
30th Jul 20255410 AMAQI
30th Jul 20255511 AMAQI
30th Jul 20255012 PMAQI
30th Jul 2025491 PMAQI
30th Jul 2025502 PMAQI
30th Jul 2025513 PMAQI
30th Jul 2025504 PMAQI
30th Jul 2025505 PMAQI
30th Jul 2025486 PMAQI
30th Jul 2025457 PMAQI
30th Jul 2025448 PMAQI
30th Jul 2025449 PMAQI
30th Jul 20254610 PMAQI
30th Jul 20254611 PMAQI
31st Jul 20254412 AMAQI
31st Jul 2025441 AMAQI
31st Jul 2025452 AMAQI
31st Jul 2025453 AMAQI
22°C17/27°C
31st Jul 2025454 AMAQI
31st Jul 2025455 AMAQI
31st Jul 2025456 AMAQI
31st Jul 2025457 AMAQI
31st Jul 2025458 AMAQI
31st Jul 2025459 AMAQI
31st Jul 20254510 AMAQI
31st Jul 20254411 AMAQI
31st Jul 20254012 PMAQI
31st Jul 2025431 PMAQI
31st Jul 2025422 PMAQI
31st Jul 2025413 PMAQI
31st Jul 2025434 PMAQI
31st Jul 2025455 PMAQI
31st Jul 2025466 PMAQI
31st Jul 2025487 PMAQI
31st Jul 2025488 PMAQI
31st Jul 2025509 PMAQI
31st Jul 20254210 PMAQI
31st Jul 20254011 PMAQI
1st Aug 20254012 AMAQI
1st Aug 2025441 AMAQI
1st Aug 2025362 AMAQI
1st Aug 2025403 AMAQI
21°C16/26°C
1st Aug 2025384 AMAQI
1st Aug 2025375 AMAQI
1st Aug 2025366 AMAQI
1st Aug 2025377 AMAQI
1st Aug 2025388 AMAQI
1st Aug 2025279 AMAQI
1st Aug 20253710 AMAQI
1st Aug 20254611 AMAQI
1st Aug 20255012 PMAQI
1st Aug 2025601 PMAQI
1st Aug 2025442 PMAQI
1st Aug 2025343 PMAQI
1st Aug 2025444 PMAQI
1st Aug 2025455 PMAQI
1st Aug 2025496 PMAQI
1st Aug 2025427 PMAQI
1st Aug 2025388 PMAQI
1st Aug 2025389 PMAQI
1st Aug 20253710 PMAQI
1st Aug 20253511 PMAQI
2nd Aug 20253512 AMAQI
2nd Aug 2025361 AMAQI
2nd Aug 2025402 AMAQI
2nd Aug 2025423 AMAQI
20°C15/24°C
2nd Aug 2025424 AMAQI
2nd Aug 2025425 AMAQI
2nd Aug 2025426 AMAQI
2nd Aug 2025417 AMAQI
2nd Aug 2025428 AMAQI
2nd Aug 2025489 AMAQI
2nd Aug 20253910 AMAQI
2nd Aug 20254811 AMAQI
2nd Aug 20253412 PMAQI
2nd Aug 2025521 PMAQI
2nd Aug 2025522 PMAQI
2nd Aug 2025523 PMAQI
2nd Aug 2025484 PMAQI
2nd Aug 2025495 PMAQI
2nd Aug 2025546 PMAQI
2nd Aug 2025507 PMAQI
2nd Aug 2025458 PMAQI
2nd Aug 2025439 PMAQI
2nd Aug 20254110 PMAQI
2nd Aug 20254011 PMAQI
3rd Aug 20253412 AMAQI
3rd Aug 2025371 AMAQI
3rd Aug 2025412 AMAQI
3rd Aug 2025403 AMAQI
22°C17/28°C
3rd Aug 2025424 AMAQI
3rd Aug 2025425 AMAQI
3rd Aug 2025406 AMAQI
3rd Aug 2025407 AMAQI
3rd Aug 2025418 AMAQI
3rd Aug 2025419 AMAQI
3rd Aug 20254910 AMAQI
3rd Aug 20254711 AMAQI
3rd Aug 20255412 PMAQI
3rd Aug 2025541 PMAQI
3rd Aug 2025522 PMAQI
3rd Aug 2025483 PMAQI
3rd Aug 2025564 PMAQI
3rd Aug 2025575 PMAQI
3rd Aug 2025566 PMAQI
3rd Aug 2025587 PMAQI
3rd Aug 2025568 PMAQI
3rd Aug 2025469 PMAQI
3rd Aug 20254710 PMAQI
3rd Aug 20254611 PMAQI
4th Aug 20254212 AMAQI
4th Aug 2025401 AMAQI
4th Aug 2025392 AMAQI
4th Aug 2025403 AMAQI
23°C18/28°C
4th Aug 2025444 AMAQI
4th Aug 2025465 AMAQI
4th Aug 2025456 AMAQI
4th Aug 2025447 AMAQI
4th Aug 2025478 AMAQI
4th Aug 2025539 AMAQI
4th Aug 20256010 AMAQI
4th Aug 20256011 AMAQI
4th Aug 20256712 PMAQI
4th Aug 2025691 PMAQI
4th Aug 2025742 PMAQI
4th Aug 2025683 PMAQI
4th Aug 2025804 PMAQI
4th Aug 2025705 PMAQI
4th Aug 2025696 PMAQI
4th Aug 2025647 PMAQI
4th Aug 2025608 PMAQI
4th Aug 2025599 PMAQI
4th Aug 20255610 PMAQI
4th Aug 20255711 PMAQI
5th Aug 20255712 AMAQI
5th Aug 2025481 AMAQI
5th Aug 2025462 AMAQI
5th Aug 2025433 AMAQI
24°C18/30°C
5th Aug 2025524 AMAQI
5th Aug 2025525 AMAQI
5th Aug 2025536 AMAQI
5th Aug 2025527 AMAQI
5th Aug 2025528 AMAQI
5th Aug 2025539 AMAQI
5th Aug 20255910 AMAQI
5th Aug 20255511 AMAQI
5th Aug 20255912 PMAQI
5th Aug 2025561 PMAQI
5th Aug 2025572 PMAQI
5th Aug 2025563 PMAQI
5th Aug 2025544 PMAQI
5th Aug 2025505 PMAQI
5th Aug 2025516 PMAQI
5th Aug 2025537 PMAQI
5th Aug 2025518 PMAQI
5th Aug 2025529 PMAQI
5th Aug 20255210 PMAQI
5th Aug 20254711 PMAQI
6th Aug 20254812 AMAQI
6th Aug 2025501 AMAQI
6th Aug 2025512 AMAQI
6th Aug 2025503 AMAQI
24°C18/30°C
6th Aug 2025524 AMAQI
6th Aug 2025525 AMAQI
6th Aug 2025526 AMAQI
6th Aug 2025527 AMAQI
6th Aug 2025528 AMAQI
6th Aug 2025419 AMAQI
6th Aug 20253010 AMAQI
6th Aug 20253111 AMAQI
6th Aug 20254212 PMAQI
6th Aug 2025401 PMAQI
6th Aug 2025402 PMAQI
6th Aug 2025503 PMAQI
6th Aug 2025414 PMAQI
6th Aug 2025485 PMAQI
6th Aug 2025386 PMAQI
6th Aug 2025517 PMAQI
6th Aug 2025498 PMAQI
6th Aug 2025519 PMAQI
6th Aug 20255110 PMAQI
6th Aug 20255011 PMAQI
7th Aug 20254612 AMAQI
7th Aug 2025481 AMAQI
7th Aug 2025492 AMAQI
7th Aug 2025473 AMAQI
--°C/°C
7th Aug 2025484 AMAQI
4 AM7th Aug 2025475 AMAQI
7th Aug 2025466 AMAQI
7th Aug 2025467 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 - 12 PM
44AQI
4 hours / Day
120 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 12 PM (Avg. 44).
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
Iwamurada, Saku, Nagano, Japan
2025
85%
186
15%
32
Total number of days with different AQI categories in last 218 days in 2025 (147 days remaining)
Good
186 DaysModerate
32 DaysPoor
0 DaysUnhealthy
0 DaysSevere
0 DaysHazardous
0 DaysUnder WHO’s Safe Air Quality Limits: 85%
Health Risk Level:
Low
In 2025, 85% of 218 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
Iwamurada, 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
30AQI
30AQI
2nd January 2025
32AQI
32AQI
3rd January 2025
29AQI
29AQI
4th January 2025
29AQI
29AQI
5th January 2025
27AQI
27AQI
6th January 2025
36AQI
36AQI
7th January 2025
30AQI
30AQI
8th January 2025
33AQI
33AQI
9th January 2025
29AQI
29AQI
10th January 2025
26AQI
26AQI
11th January 2025
27AQI
27AQI
12th January 2025
31AQI
31AQI
13th January 2025
29AQI
29AQI
14th January 2025
31AQI
31AQI
15th January 2025
32AQI
32AQI
16th January 2025
29AQI
29AQI
17th January 2025
30AQI
30AQI
18th January 2025
28AQI
28AQI
19th January 2025
33AQI
33AQI
20th January 2025
32AQI
32AQI
21st January 2025
39AQI
39AQI
22nd January 2025
37AQI
37AQI
23rd January 2025
45AQI
45AQI
24th January 2025
50AQI
50AQI
25th January 2025
40AQI
40AQI
26th January 2025
36AQI
36AQI
27th January 2025
33AQI
33AQI
28th January 2025
39AQI
39AQI
29th January 2025
38AQI
38AQI
30th January 2025
39AQI
39AQI
31st January 2025
34AQI
34AQI
1st February 2025
42AQI
42AQI
2nd February 2025
49AQI
49AQI
3rd February 2025
44AQI
44AQI
4th February 2025
39AQI
39AQI
5th February 2025
36AQI
36AQI
6th February 2025
32AQI
32AQI
7th February 2025
34AQI
34AQI
8th February 2025
31AQI
31AQI
9th February 2025
31AQI
31AQI
10th February 2025
31AQI
31AQI
11th February 2025
33AQI
33AQI
12th February 2025
32AQI
32AQI
13th February 2025
33AQI
33AQI
14th February 2025
37AQI
37AQI
15th February 2025
31AQI
31AQI
16th February 2025
40AQI
40AQI
17th February 2025
40AQI
40AQI
18th February 2025
38AQI
38AQI
19th February 2025
33AQI
33AQI
20th February 2025
30AQI
30AQI
21st February 2025
30AQI
30AQI
22nd February 2025
32AQI
32AQI
23rd February 2025
31AQI
31AQI
24th February 2025
32AQI
32AQI
25th February 2025
35AQI
35AQI
26th February 2025
39AQI
39AQI
27th February 2025
44AQI
44AQI
28th February 2025
47AQI
47AQI
1st March 2025
50AQI
50AQI
2nd March 2025
49AQI
49AQI
3rd March 2025
37AQI
37AQI
4th March 2025
43AQI
43AQI
5th March 2025
37AQI
37AQI
6th March 2025
34AQI
34AQI
7th March 2025
35AQI
35AQI
8th March 2025
39AQI
39AQI
9th March 2025
38AQI
38AQI
10th March 2025
39AQI
39AQI
11th March 2025
45AQI
45AQI
12th March 2025
37AQI
37AQI
13th March 2025
48AQI
48AQI
14th March 2025
40AQI
40AQI
15th March 2025
40AQI
40AQI
16th March 2025
25AQI
25AQI
17th March 2025
24AQI
24AQI
18th March 2025
25AQI
25AQI
19th March 2025
22AQI
22AQI
20th March 2025
27AQI
27AQI
21st March 2025
40AQI
40AQI
22nd March 2025
47AQI
47AQI
23rd March 2025
58AQI
58AQI
24th March 2025
60AQI
60AQI
25th March 2025
76AQI
76AQI
26th March 2025
82AQI
82AQI
27th March 2025
71AQI
71AQI
28th March 2025
47AQI
47AQI
29th March 2025
38AQI
38AQI
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
35AQI
35AQI
6th April 2025
28AQI
28AQI
7th April 2025
34AQI
34AQI
8th April 2025
42AQI
42AQI
9th April 2025
27AQI
27AQI
10th April 2025
47AQI
47AQI
11th April 2025
39AQI
39AQI
12th April 2025
49AQI
49AQI
13th April 2025
24AQI
24AQI
14th April 2025
32AQI
32AQI
15th April 2025
21AQI
21AQI
16th April 2025
28AQI
28AQI
17th April 2025
45AQI
45AQI
18th April 2025
53AQI
53AQI
19th April 2025
68AQI
68AQI
20th April 2025
54AQI
54AQI
21st April 2025
42AQI
42AQI
22nd April 2025
53AQI
53AQI
23rd April 2025
31AQI
31AQI
24th April 2025
36AQI
36AQI
25th April 2025
38AQI
38AQI
26th April 2025
47AQI
47AQI
27th April 2025
46AQI
46AQI
28th April 2025
47AQI
47AQI
29th April 2025
37AQI
37AQI
30th April 2025
52AQI
52AQI
1st May 2025
48AQI
48AQI
2nd May 2025
32AQI
32AQI
3rd May 2025
40AQI
40AQI
4th May 2025
35AQI
35AQI
5th May 2025
40AQI
40AQI
6th May 2025
30AQI
30AQI
7th May 2025
34AQI
34AQI
8th May 2025
37AQI
37AQI
9th May 2025
37AQI
37AQI
10th May 2025
26AQI
26AQI
11th May 2025
27AQI
27AQI
12th May 2025
25AQI
25AQI
13th May 2025
37AQI
37AQI
14th May 2025
44AQI
44AQI
15th May 2025
48AQI
48AQI
16th May 2025
50AQI
50AQI
17th May 2025
35AQI
35AQI
18th May 2025
48AQI
48AQI
19th May 2025
41AQI
41AQI
20th May 2025
59AQI
59AQI
21st May 2025
64AQI
64AQI
22nd May 2025
59AQI
59AQI
23rd May 2025
54AQI
54AQI
24th May 2025
46AQI
46AQI
25th May 2025
30AQI
30AQI
26th May 2025
30AQI
30AQI
27th May 2025
34AQI
34AQI
28th May 2025
31AQI
31AQI
29th May 2025
38AQI
38AQI
30th May 2025
27AQI
27AQI
31st May 2025
23AQI
23AQI
1st June 2025
22AQI
22AQI
2nd June 2025
35AQI
35AQI
3rd June 2025
26AQI
26AQI
4th June 2025
31AQI
31AQI
5th June 2025
37AQI
37AQI
6th June 2025
45AQI
45AQI
7th June 2025
50AQI
50AQI
8th June 2025
57AQI
57AQI
9th June 2025
56AQI
56AQI
10th June 2025
35AQI
35AQI
11th June 2025
30AQI
30AQI
12th June 2025
37AQI
37AQI
13th June 2025
45AQI
45AQI
14th June 2025
38AQI
38AQI
15th June 2025
30AQI
30AQI
16th June 2025
31AQI
31AQI
17th June 2025
37AQI
37AQI
18th June 2025
43AQI
43AQI
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
42AQI
42AQI
27th June 2025
45AQI
45AQI
28th June 2025
46AQI
46AQI
29th June 2025
50AQI
50AQI
30th June 2025
52AQI
52AQI
1st July 2025
54AQI
54AQI
2nd July 2025
51AQI
51AQI
3rd July 2025
52AQI
52AQI
4th July 2025
53AQI
53AQI
5th July 2025
55AQI
55AQI
6th July 2025
55AQI
55AQI
7th July 2025
59AQI
59AQI
8th July 2025
65AQI
65AQI
9th July 2025
66AQI
66AQI
10th July 2025
60AQI
60AQI
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
41AQI
41AQI
19th July 2025
40AQI
40AQI
20th July 2025
41AQI
41AQI
21st July 2025
40AQI
40AQI
22nd July 2025
44AQI
44AQI
23rd July 2025
44AQI
44AQI
24th July 2025
47AQI
47AQI
25th July 2025
48AQI
48AQI
26th July 2025
46AQI
46AQI
27th July 2025
45AQI
45AQI
28th July 2025
46AQI
46AQI
29th July 2025
48AQI
48AQI
30th July 2025
47AQI
47AQI
31st July 2025
45AQI
45AQI
1st August 2025
40AQI
40AQI
2nd August 2025
44AQI
44AQI
3rd August 2025
47AQI
47AQI
4th August 2025
56AQI
56AQI
5th August 2025
52AQI
52AQI
6th August 2025
51AQI
51AQI
33AQI
36AQI
43AQI
38AQI
39AQI
42AQI
49AQI
48AQI
No. of days
Jan.Feb.Mar.Apr.MayJun.Jul.Aug.Sep.Oct.Nov.Dec.Total Days
202540AQI
31
28
26
5
25
5
27
4
25
5
21
10
3
3
186
32
Highest AQI recorded in
July49AQI
Lowest AQI recorded in
January33AQI
202432AQI
16
12
26
4
30
1
29
2
26
3
31
30
31
231
10
Highest AQI recorded in
June42AQI
Lowest AQI recorded in
January12AQI
202321AQI
3
31
34
Highest AQI recorded in
December21AQI
Lowest AQI recorded in
November18AQI
202026AQI
13
7
2
22
Highest AQI recorded in
March28AQI
Lowest AQI recorded in
September15AQI
Most & Least Polluted Years Over the Last 4 Years
Most Polluted Year Recorded
2025(Avg.)
40AQILeast Polluted Year Recorded
2023(Avg.)
21AQIIwamurada's annual 2025 AQI (40) shows an average percentage change of 59.5% (worsened AQI) compared to previous years: 2020 (26), 2023 (21), 2024 (32).
