Joetsu, Niigata, 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+
November Air Quality Analysis
Joetsu, Niigata, Japan
2021
2022
2023
2024
2025
AQI
.
Days
AQI Trends: Highest and Lowest
Highest AQI recorded on
5th Nov 2023
66AQILowest AQI recorded on
14th Nov 2022
22AQISame Day Analysis (12th November ):
On this day, AQI across the 5 years varied significantly: 2025 ranks 2nd highest AQI at 42 of Good air quality, showing improvement over 2022 on the same day.
Download 2024 Annual Data
World Air Quality Report
Day & Night AQI Trend: 13th Nov - 14th Nov 2025
Joetsu, Niigata, Japan
AQI
Day
Night
.
6 AM13th Nov 2025
4 PM
5 AM14th Nov 2025
Day time
Avg. Highest Time
12AMNaNth undefined
AQI
Avg. Lowest Time
12AMNaNth undefined
AQI
Night time
Avg. Highest Time
2PM13th Nov
60AQI
Avg. Lowest Time
7AM13th Nov
46AQI
In the last 24 hours,
Joetsu's AQI reached its highest point of 60 at 2 PM during the Night, while the lowest point, 46, was recorded at 7 AM during the Night between 13th Nov and 14th Nov 2025.
Day & Night AQI Trend : Oct - Nov 2025
Joetsu, Niigata, Japan
OctNov
15th - 16th16th - 17th17th - 18th18th - 19th19th - 20th20th - 21st21st - 22nd22nd - 23rd23rd - 24th24th - 25th25th - 26th26th - 27th27th - 28th28th - 29th29th - 30th30th - 31st31st - 01st01st - 02nd02nd - 03rd03rd - 04th04th - 05th05th - 06th06th - 07th07th - 08th08th - 09th09th - 10th10th - 11th11th - 12th12th - 13th13th - 14th14th
Day
Night
15th Oct 2025406 AMAQI
15th Oct 2025487 AMAQI
15th Oct 2025468 AMAQI
15th Oct 2025429 AMAQI
15th Oct 20253810 AMAQI
15th Oct 20254311 AMAQI
15th Oct 20255312 PMAQI
15th Oct 2025411 PMAQI
15th Oct 2025382 PMAQI
15th Oct 2025413 PMAQI
15th Oct 2025534 PMAQI
15th Oct 2025565 PMAQI
15th Oct 2025566 PMAQI
15th Oct 2025597 PMAQI
15th Oct 2025628 PMAQI
15th Oct 2025619 PMAQI
15th Oct 20256410 PMAQI
15th Oct 20256311 PMAQI
16th Oct 20256112 AMAQI
16th Oct 2025601 AMAQI
16th Oct 2025592 AMAQI
16th Oct 2025583 AMAQI
16th Oct 2025544 AMAQI
16th Oct 2025495 AMAQI
18°C15/22°C
16th Oct 2025456 AMAQI
16th Oct 2025497 AMAQI
16th Oct 2025558 AMAQI
16th Oct 2025569 AMAQI
16th Oct 20254810 AMAQI
16th Oct 20254511 AMAQI
16th Oct 20254512 PMAQI
16th Oct 2025481 PMAQI
16th Oct 2025522 PMAQI
16th Oct 2025523 PMAQI
16th Oct 2025554 PMAQI
16th Oct 2025505 PMAQI
16th Oct 2025446 PMAQI
16th Oct 2025467 PMAQI
16th Oct 2025468 PMAQI
16th Oct 2025439 PMAQI
16th Oct 20254410 PMAQI
16th Oct 20255311 PMAQI
17th Oct 20254412 AMAQI
17th Oct 2025361 AMAQI
17th Oct 2025362 AMAQI
17th Oct 2025413 AMAQI
17th Oct 2025544 AMAQI
17th Oct 2025535 AMAQI
19°C17/22°C
17th Oct 2025626 AMAQI
17th Oct 2025637 AMAQI
17th Oct 2025618 AMAQI
17th Oct 2025589 AMAQI
17th Oct 20255910 AMAQI
17th Oct 20255911 AMAQI
17th Oct 20255812 PMAQI
17th Oct 2025561 PMAQI
17th Oct 2025542 PMAQI
17th Oct 2025593 PMAQI
17th Oct 2025574 PMAQI
17th Oct 2025565 PMAQI
17th Oct 2025596 PMAQI
17th Oct 2025607 PMAQI
17th Oct 2025628 PMAQI
17th Oct 2025609 PMAQI
17th Oct 20256310 PMAQI
17th Oct 20256511 PMAQI
18th Oct 20256612 AMAQI
18th Oct 2025651 AMAQI
18th Oct 2025642 AMAQI
18th Oct 2025643 AMAQI
18th Oct 2025634 AMAQI
18th Oct 2025595 AMAQI
18°C14/22°C
18th Oct 2025616 AMAQI
18th Oct 2025607 AMAQI
18th Oct 2025608 AMAQI
18th Oct 2025629 AMAQI
18th Oct 20256310 AMAQI
18th Oct 20256111 AMAQI
18th Oct 20256012 PMAQI
18th Oct 2025561 PMAQI
18th Oct 2025542 PMAQI
18th Oct 2025573 PMAQI
18th Oct 2025564 PMAQI
18th Oct 2025515 PMAQI
18th Oct 2025556 PMAQI
18th Oct 2025607 PMAQI
18th Oct 2025608 PMAQI
18th Oct 2025589 PMAQI
18th Oct 20255810 PMAQI
18th Oct 20255711 PMAQI
19th Oct 20255612 AMAQI
19th Oct 2025541 AMAQI
19th Oct 2025522 AMAQI
19th Oct 2025523 AMAQI
19th Oct 2025584 AMAQI
19th Oct 2025515 AMAQI
19°C14/25°C
19th Oct 2025476 AMAQI
19th Oct 2025477 AMAQI
19th Oct 2025538 AMAQI
19th Oct 2025549 AMAQI
19th Oct 20255310 AMAQI
19th Oct 20254911 AMAQI
19th Oct 20255312 PMAQI
19th Oct 2025541 PMAQI
19th Oct 2025492 PMAQI
19th Oct 2025513 PMAQI
19th Oct 2025514 PMAQI
19th Oct 2025545 PMAQI
19th Oct 2025526 PMAQI
19th Oct 2025547 PMAQI
19th Oct 2025558 PMAQI
19th Oct 2025579 PMAQI
19th Oct 20255610 PMAQI
19th Oct 20255811 PMAQI
20th Oct 20255712 AMAQI
20th Oct 2025481 AMAQI
20th Oct 2025422 AMAQI
20th Oct 2025363 AMAQI
20th Oct 2025574 AMAQI
20th Oct 2025595 AMAQI
17°C14/17°C
20th Oct 2025576 AMAQI
20th Oct 2025277 AMAQI
20th Oct 2025278 AMAQI
20th Oct 2025339 AMAQI
20th Oct 20253110 AMAQI
20th Oct 20252211 AMAQI
20th Oct 20255112 PMAQI
20th Oct 2025621 PMAQI
20th Oct 2025592 PMAQI
20th Oct 2025543 PMAQI
20th Oct 2025544 PMAQI
20th Oct 2025565 PMAQI
20th Oct 2025556 PMAQI
20th Oct 2025547 PMAQI
20th Oct 2025548 PMAQI
20th Oct 2025539 PMAQI
20th Oct 20255410 PMAQI
20th Oct 20255411 PMAQI
21st Oct 20255412 AMAQI
21st Oct 2025531 AMAQI
21st Oct 2025512 AMAQI
21st Oct 2025543 AMAQI
21st Oct 2025544 AMAQI
21st Oct 2025545 AMAQI
15°C13/16°C
21st Oct 2025556 AMAQI
21st Oct 2025547 AMAQI
21st Oct 2025548 AMAQI
21st Oct 2025549 AMAQI
21st Oct 20255210 AMAQI
21st Oct 20255211 AMAQI
21st Oct 20252812 PMAQI
21st Oct 2025251 PMAQI
21st Oct 2025582 PMAQI
21st Oct 2025763 PMAQI
21st Oct 2025774 PMAQI
21st Oct 2025795 PMAQI
21st Oct 2025776 PMAQI
21st Oct 2025677 PMAQI
21st Oct 2025748 PMAQI
21st Oct 2025749 PMAQI
21st Oct 20257910 PMAQI
21st Oct 20255111 PMAQI
22nd Oct 20253512 AMAQI
22nd Oct 2025361 AMAQI
22nd Oct 2025472 AMAQI
22nd Oct 2025513 AMAQI
22nd Oct 2025504 AMAQI
22nd Oct 2025325 AMAQI
12°C11/14°C
22nd Oct 2025296 AMAQI
22nd Oct 2025287 AMAQI
22nd Oct 2025288 AMAQI
22nd Oct 2025289 AMAQI
22nd Oct 20252810 AMAQI
22nd Oct 20253711 AMAQI
22nd Oct 20253612 PMAQI
22nd Oct 2025321 PMAQI
22nd Oct 2025332 PMAQI
22nd Oct 2025373 PMAQI
22nd Oct 2025444 PMAQI
22nd Oct 2025455 PMAQI
22nd Oct 2025426 PMAQI
22nd Oct 2025387 PMAQI
22nd Oct 2025528 PMAQI
22nd Oct 2025529 PMAQI
22nd Oct 20255110 PMAQI
22nd Oct 20255011 PMAQI
23rd Oct 20254412 AMAQI
23rd Oct 2025421 AMAQI
23rd Oct 2025462 AMAQI
23rd Oct 2025453 AMAQI
23rd Oct 2025454 AMAQI
23rd Oct 2025495 AMAQI
12°C9/15°C
23rd Oct 2025476 AMAQI
23rd Oct 2025407 AMAQI
23rd Oct 2025398 AMAQI
23rd Oct 2025399 AMAQI
23rd Oct 20253510 AMAQI
23rd Oct 20253611 AMAQI
23rd Oct 20253512 PMAQI
23rd Oct 2025311 PMAQI
23rd Oct 2025452 PMAQI
23rd Oct 2025453 PMAQI
23rd Oct 2025454 PMAQI
23rd Oct 2025515 PMAQI
23rd Oct 2025516 PMAQI
23rd Oct 2025517 PMAQI
23rd Oct 2025358 PMAQI
23rd Oct 2025479 PMAQI
23rd Oct 20255210 PMAQI
23rd Oct 20255111 PMAQI
24th Oct 20255112 AMAQI
24th Oct 2025511 AMAQI
24th Oct 2025512 AMAQI
24th Oct 2025423 AMAQI
24th Oct 2025354 AMAQI
24th Oct 2025305 AMAQI
12°C9/16°C
24th Oct 2025306 AMAQI
24th Oct 2025407 AMAQI
24th Oct 2025408 AMAQI
24th Oct 2025429 AMAQI
24th Oct 20254210 AMAQI
24th Oct 20253711 AMAQI
24th Oct 20253912 PMAQI
24th Oct 2025411 PMAQI
24th Oct 2025382 PMAQI
24th Oct 2025323 PMAQI
24th Oct 2025284 PMAQI
24th Oct 2025285 PMAQI
24th Oct 2025286 PMAQI
24th Oct 2025407 PMAQI
24th Oct 2025418 PMAQI
24th Oct 2025429 PMAQI
24th Oct 20253510 PMAQI
24th Oct 20254511 PMAQI
25th Oct 20255012 AMAQI
25th Oct 2025511 AMAQI
25th Oct 2025502 AMAQI
25th Oct 2025373 AMAQI
25th Oct 2025404 AMAQI
25th Oct 2025405 AMAQI
12°C8/16°C
25th Oct 2025376 AMAQI
25th Oct 2025457 AMAQI
25th Oct 2025478 AMAQI
25th Oct 2025499 AMAQI
25th Oct 20254310 AMAQI
25th Oct 20254211 AMAQI
25th Oct 20254612 PMAQI
25th Oct 2025481 PMAQI
25th Oct 2025462 PMAQI
25th Oct 2025483 PMAQI
25th Oct 2025504 PMAQI
25th Oct 2025535 PMAQI
25th Oct 2025526 PMAQI
25th Oct 2025547 PMAQI
25th Oct 2025548 PMAQI
25th Oct 2025549 PMAQI
25th Oct 20255710 PMAQI
25th Oct 20255811 PMAQI
26th Oct 20255812 AMAQI
26th Oct 2025521 AMAQI
26th Oct 2025542 AMAQI
26th Oct 2025543 AMAQI
26th Oct 2025524 AMAQI
26th Oct 2025545 AMAQI
14°C9/19°C
26th Oct 2025556 AMAQI
26th Oct 2025537 AMAQI
26th Oct 2025498 AMAQI
26th Oct 2025549 AMAQI
26th Oct 20254810 AMAQI
26th Oct 20255311 AMAQI
26th Oct 20254412 PMAQI
26th Oct 2025401 PMAQI
26th Oct 2025412 PMAQI
26th Oct 2025253 PMAQI
26th Oct 2025274 PMAQI
26th Oct 2025285 PMAQI
26th Oct 2025286 PMAQI
26th Oct 2025207 PMAQI
26th Oct 2025188 PMAQI
26th Oct 2025179 PMAQI
26th Oct 20251810 PMAQI
26th Oct 20253611 PMAQI
27th Oct 20254912 AMAQI
27th Oct 2025501 AMAQI
27th Oct 2025502 AMAQI
27th Oct 2025323 AMAQI
27th Oct 2025324 AMAQI
27th Oct 2025315 AMAQI
16°C14/18°C
27th Oct 2025246 AMAQI
27th Oct 2025227 AMAQI
27th Oct 2025298 AMAQI
27th Oct 2025329 AMAQI
27th Oct 20253310 AMAQI
27th Oct 20252511 AMAQI
27th Oct 20252612 PMAQI
27th Oct 2025331 PMAQI
27th Oct 2025372 PMAQI
27th Oct 2025413 PMAQI
27th Oct 2025554 PMAQI
27th Oct 2025565 PMAQI
27th Oct 2025556 PMAQI
27th Oct 2025417 PMAQI
27th Oct 2025358 PMAQI
27th Oct 2025529 PMAQI
27th Oct 20254810 PMAQI
27th Oct 20255211 PMAQI
28th Oct 20255412 AMAQI
28th Oct 2025511 AMAQI
28th Oct 2025512 AMAQI
28th Oct 2025513 AMAQI
28th Oct 2025514 AMAQI
28th Oct 2025515 AMAQI
16°C14/18°C
28th Oct 2025316 AMAQI
28th Oct 2025347 AMAQI
28th Oct 2025348 AMAQI
28th Oct 2025349 AMAQI
28th Oct 20251910 AMAQI
28th Oct 20253211 AMAQI
28th Oct 20253012 PMAQI
28th Oct 2025311 PMAQI
28th Oct 2025282 PMAQI
28th Oct 2025223 PMAQI
28th Oct 2025264 PMAQI
28th Oct 2025265 PMAQI
28th Oct 2025226 PMAQI
28th Oct 2025247 PMAQI
28th Oct 2025248 PMAQI
28th Oct 2025379 PMAQI
28th Oct 20253510 PMAQI
28th Oct 20253111 PMAQI
29th Oct 20252812 AMAQI
29th Oct 2025281 AMAQI
29th Oct 2025322 AMAQI
29th Oct 2025323 AMAQI
29th Oct 2025394 AMAQI
29th Oct 2025445 AMAQI
12°C10/13°C
29th Oct 2025426 AMAQI
29th Oct 2025367 AMAQI
29th Oct 2025428 AMAQI
29th Oct 2025429 AMAQI
29th Oct 20253810 AMAQI
29th Oct 20252911 AMAQI
29th Oct 20252612 PMAQI
29th Oct 2025351 PMAQI
29th Oct 2025362 PMAQI
29th Oct 2025463 PMAQI
29th Oct 2025624 PMAQI
29th Oct 2025635 PMAQI
29th Oct 2025636 PMAQI
29th Oct 2025577 PMAQI
29th Oct 2025568 PMAQI
29th Oct 2025679 PMAQI
29th Oct 20256910 PMAQI
29th Oct 20256911 PMAQI
30th Oct 20256412 AMAQI
30th Oct 2025631 AMAQI
30th Oct 2025622 AMAQI
30th Oct 2025643 AMAQI
30th Oct 2025664 AMAQI
30th Oct 2025625 AMAQI
10°C8/13°C
30th Oct 2025616 AMAQI
30th Oct 2025607 AMAQI
30th Oct 2025498 AMAQI
30th Oct 2025459 AMAQI
30th Oct 20254210 AMAQI
30th Oct 20254111 AMAQI
30th Oct 20253812 PMAQI
30th Oct 2025531 PMAQI
30th Oct 2025542 PMAQI
30th Oct 2025633 PMAQI
30th Oct 2025664 PMAQI
30th Oct 2025665 PMAQI
30th Oct 2025646 PMAQI
30th Oct 2025627 PMAQI
30th Oct 2025648 PMAQI
30th Oct 2025599 PMAQI
30th Oct 20255710 PMAQI
30th Oct 20255511 PMAQI
31st Oct 20255412 AMAQI
31st Oct 2025541 AMAQI
31st Oct 2025542 AMAQI
31st Oct 2025473 AMAQI
31st Oct 2025514 AMAQI
31st Oct 2025455 AMAQI
11°C7/17°C
31st Oct 2025506 AMAQI
31st Oct 2025537 AMAQI
31st Oct 2025548 AMAQI
31st Oct 2025549 AMAQI
31st Oct 20255410 AMAQI
31st Oct 20255511 AMAQI
31st Oct 20255312 PMAQI
31st Oct 2025541 PMAQI
31st Oct 2025572 PMAQI
31st Oct 2025573 PMAQI
31st Oct 2025564 PMAQI
31st Oct 2025575 PMAQI
31st Oct 2025656 PMAQI
31st Oct 2025667 PMAQI
31st Oct 2025658 PMAQI
31st Oct 2025619 PMAQI
31st Oct 20256110 PMAQI
31st Oct 20255911 PMAQI
1st Nov 20256112 AMAQI
1st Nov 2025581 AMAQI
1st Nov 2025552 AMAQI
1st Nov 2025553 AMAQI
1st Nov 2025414 AMAQI
1st Nov 2025355 AMAQI
13°C9/17°C
1st Nov 2025346 AMAQI
1st Nov 2025227 AMAQI
1st Nov 2025178 AMAQI
1st Nov 2025209 AMAQI
1st Nov 20252010 AMAQI
1st Nov 20252311 AMAQI
1st Nov 20252412 PMAQI
1st Nov 2025221 PMAQI
1st Nov 2025222 PMAQI
1st Nov 2025223 PMAQI
1st Nov 2025224 PMAQI
1st Nov 2025225 PMAQI
1st Nov 2025236 PMAQI
1st Nov 2025237 PMAQI
1st Nov 2025328 PMAQI
1st Nov 2025369 PMAQI
1st Nov 20253910 PMAQI
1st Nov 20253111 PMAQI
2nd Nov 20254012 AMAQI
2nd Nov 2025401 AMAQI
2nd Nov 2025402 AMAQI
2nd Nov 2025273 AMAQI
2nd Nov 2025264 AMAQI
2nd Nov 2025275 AMAQI
14°C13/16°C
2nd Nov 2025266 AMAQI
2nd Nov 2025317 AMAQI
2nd Nov 2025368 AMAQI
2nd Nov 2025389 AMAQI
2nd Nov 20253610 AMAQI
2nd Nov 20254111 AMAQI
2nd Nov 20254212 PMAQI
2nd Nov 2025411 PMAQI
2nd Nov 2025302 PMAQI
2nd Nov 2025393 PMAQI
2nd Nov 2025374 PMAQI
2nd Nov 2025375 PMAQI
2nd Nov 2025386 PMAQI
2nd Nov 2025387 PMAQI
2nd Nov 2025418 PMAQI
2nd Nov 2025449 PMAQI
2nd Nov 20254210 PMAQI
2nd Nov 20255111 PMAQI
3rd Nov 20254612 AMAQI
3rd Nov 2025461 AMAQI
3rd Nov 2025442 AMAQI
3rd Nov 2025453 AMAQI
3rd Nov 2025424 AMAQI
3rd Nov 2025365 AMAQI
14°C13/17°C
3rd Nov 2025316 AMAQI
3rd Nov 2025327 AMAQI
3rd Nov 2025378 AMAQI
3rd Nov 2025489 AMAQI
3rd Nov 20254910 AMAQI
3rd Nov 20254911 AMAQI
3rd Nov 20253212 PMAQI
3rd Nov 2025251 PMAQI
3rd Nov 2025232 PMAQI
3rd Nov 2025223 PMAQI
3rd Nov 2025244 PMAQI
3rd Nov 2025245 PMAQI
3rd Nov 2025426 PMAQI
3rd Nov 2025447 PMAQI
3rd Nov 2025448 PMAQI
3rd Nov 2025239 PMAQI
3rd Nov 20251910 PMAQI
3rd Nov 20252811 PMAQI
4th Nov 20253012 AMAQI
4th Nov 2025321 AMAQI
4th Nov 2025292 AMAQI
4th Nov 2025273 AMAQI
4th Nov 2025234 AMAQI
4th Nov 2025225 AMAQI
11°C9/13°C
4th Nov 2025226 AMAQI
4th Nov 2025227 AMAQI
4th Nov 2025278 AMAQI
4th Nov 2025279 AMAQI
4th Nov 20252910 AMAQI
4th Nov 20252911 AMAQI
4th Nov 20253512 PMAQI
4th Nov 2025361 PMAQI
4th Nov 2025362 PMAQI
4th Nov 2025373 PMAQI
4th Nov 2025394 PMAQI
4th Nov 2025425 PMAQI
4th Nov 2025426 PMAQI
4th Nov 2025377 PMAQI
4th Nov 2025378 PMAQI
4th Nov 2025319 PMAQI
4th Nov 20254810 PMAQI
4th Nov 20254711 PMAQI
5th Nov 20254612 AMAQI
5th Nov 2025451 AMAQI
5th Nov 2025422 AMAQI
5th Nov 2025443 AMAQI
5th Nov 2025494 AMAQI
5th Nov 2025505 AMAQI
10°C6/15°C
5th Nov 2025376 AMAQI
5th Nov 2025207 AMAQI
5th Nov 2025198 AMAQI
5th Nov 2025219 AMAQI
5th Nov 20253610 AMAQI
5th Nov 20253711 AMAQI
5th Nov 20253912 PMAQI
5th Nov 2025401 PMAQI
5th Nov 2025402 PMAQI
5th Nov 2025483 PMAQI
5th Nov 2025514 PMAQI
5th Nov 2025535 PMAQI
5th Nov 2025546 PMAQI
5th Nov 2025447 PMAQI
5th Nov 2025508 PMAQI
5th Nov 2025399 PMAQI
5th Nov 20254010 PMAQI
5th Nov 20254911 PMAQI
6th Nov 20254612 AMAQI
6th Nov 2025441 AMAQI
6th Nov 2025512 AMAQI
6th Nov 2025563 AMAQI
6th Nov 2025554 AMAQI
6th Nov 2025495 AMAQI
12°C8/17°C
6th Nov 2025476 AMAQI
6th Nov 2025477 AMAQI
6th Nov 2025488 AMAQI
6th Nov 2025519 AMAQI
6th Nov 20255110 AMAQI
6th Nov 20255011 AMAQI
6th Nov 20254912 PMAQI
6th Nov 2025501 PMAQI
6th Nov 2025512 PMAQI
6th Nov 2025533 PMAQI
6th Nov 2025424 PMAQI
6th Nov 2025415 PMAQI
6th Nov 2025366 PMAQI
6th Nov 2025397 PMAQI
6th Nov 2025368 PMAQI
6th Nov 2025329 PMAQI
6th Nov 20253410 PMAQI
6th Nov 20255411 PMAQI
7th Nov 20255912 AMAQI
7th Nov 2025581 AMAQI
7th Nov 2025562 AMAQI
7th Nov 2025563 AMAQI
7th Nov 2025544 AMAQI
7th Nov 2025545 AMAQI
13°C10/16°C
7th Nov 2025546 AMAQI
7th Nov 2025557 AMAQI
7th Nov 2025698 AMAQI
7th Nov 2025719 AMAQI
7th Nov 20257010 AMAQI
7th Nov 20256611 AMAQI
7th Nov 20256312 PMAQI
7th Nov 2025611 PMAQI
7th Nov 2025602 PMAQI
7th Nov 2025533 PMAQI
7th Nov 2025504 PMAQI
7th Nov 2025515 PMAQI
7th Nov 2025536 PMAQI
7th Nov 2025547 PMAQI
7th Nov 2025548 PMAQI
7th Nov 2025479 PMAQI
7th Nov 20254910 PMAQI
7th Nov 20255211 PMAQI
8th Nov 20255312 AMAQI
8th Nov 2025521 AMAQI
8th Nov 2025512 AMAQI
8th Nov 2025453 AMAQI
8th Nov 2025424 AMAQI
8th Nov 2025435 AMAQI
13°C12/16°C
8th Nov 2025456 AMAQI
8th Nov 2025497 AMAQI
8th Nov 2025538 AMAQI
8th Nov 2025549 AMAQI
8th Nov 20255210 AMAQI
8th Nov 20255211 AMAQI
8th Nov 20255212 PMAQI
8th Nov 2025521 PMAQI
8th Nov 2025532 PMAQI
8th Nov 2025473 PMAQI
8th Nov 2025524 PMAQI
8th Nov 2025535 PMAQI
8th Nov 2025556 PMAQI
8th Nov 2025557 PMAQI
8th Nov 2025648 PMAQI
8th Nov 2025649 PMAQI
8th Nov 20256210 PMAQI
8th Nov 20255411 PMAQI
9th Nov 20255812 AMAQI
9th Nov 2025551 AMAQI
9th Nov 2025532 AMAQI
9th Nov 2025543 AMAQI
9th Nov 2025534 AMAQI
9th Nov 2025515 AMAQI
11°C8/15°C
9th Nov 2025516 AMAQI
9th Nov 2025537 AMAQI
9th Nov 2025538 AMAQI
9th Nov 2025569 AMAQI
9th Nov 20256210 AMAQI
9th Nov 20256311 AMAQI
9th Nov 20256412 PMAQI
9th Nov 2025611 PMAQI
9th Nov 2025602 PMAQI
9th Nov 2025593 PMAQI
9th Nov 2025594 PMAQI
9th Nov 2025485 PMAQI
9th Nov 2025466 PMAQI
9th Nov 2025487 PMAQI
9th Nov 2025318 PMAQI
9th Nov 2025279 PMAQI
9th Nov 20253710 PMAQI
9th Nov 20254211 PMAQI
10th Nov 20253912 AMAQI
10th Nov 2025421 AMAQI
10th Nov 2025402 AMAQI
10th Nov 2025413 AMAQI
10th Nov 2025524 AMAQI
10th Nov 2025525 AMAQI
13°C9/18°C
10th Nov 2025586 AMAQI
10th Nov 2025597 AMAQI
10th Nov 2025588 AMAQI
10th Nov 2025349 AMAQI
10th Nov 20253210 AMAQI
10th Nov 20253611 AMAQI
10th Nov 20254012 PMAQI
10th Nov 2025451 PMAQI
10th Nov 2025362 PMAQI
10th Nov 2025313 PMAQI
10th Nov 2025164 PMAQI
10th Nov 2025385 PMAQI
10th Nov 2025466 PMAQI
10th Nov 2025467 PMAQI
10th Nov 2025518 PMAQI
10th Nov 2025519 PMAQI
10th Nov 20255010 PMAQI
10th Nov 20255011 PMAQI
11th Nov 20253312 AMAQI
11th Nov 2025301 AMAQI
11th Nov 2025282 AMAQI
11th Nov 2025283 AMAQI
11th Nov 2025324 AMAQI
11th Nov 2025245 AMAQI
12°C10/13°C
11th Nov 2025236 AMAQI
11th Nov 2025287 AMAQI
11th Nov 2025378 AMAQI
11th Nov 2025479 AMAQI
11th Nov 20254610 AMAQI
11th Nov 20254511 AMAQI
11th Nov 20252412 PMAQI
11th Nov 2025521 PMAQI
11th Nov 2025462 PMAQI
11th Nov 2025383 PMAQI
11th Nov 2025334 PMAQI
11th Nov 2025495 PMAQI
11th Nov 2025566 PMAQI
11th Nov 2025577 PMAQI
11th Nov 2025428 PMAQI
11th Nov 2025369 PMAQI
11th Nov 20253410 PMAQI
11th Nov 20252911 PMAQI
12th Nov 20252712 AMAQI
12th Nov 2025221 AMAQI
12th Nov 2025222 AMAQI
12th Nov 2025263 AMAQI
12th Nov 2025274 AMAQI
12th Nov 2025345 AMAQI
10°C9/12°C
12th Nov 2025326 AMAQI
12th Nov 2025307 AMAQI
12th Nov 2025288 AMAQI
12th Nov 2025519 AMAQI
12th Nov 20255610 AMAQI
12th Nov 20255411 AMAQI
12th Nov 20255312 PMAQI
12th Nov 2025541 PMAQI
12th Nov 2025492 PMAQI
12th Nov 2025483 PMAQI
12th Nov 2025514 PMAQI
12th Nov 2025525 PMAQI
12th Nov 2025506 PMAQI
12th Nov 2025527 PMAQI
12th Nov 2025578 PMAQI
12th Nov 2025609 PMAQI
12th Nov 20256210 PMAQI
12th Nov 20256411 PMAQI
13th Nov 20256512 AMAQI
13th Nov 2025521 AMAQI
13th Nov 2025482 AMAQI
13th Nov 2025433 AMAQI
13th Nov 2025474 AMAQI
13th Nov 2025485 AMAQI
10°C7/13°C
13th Nov 2025526 AMAQI
13th Nov 2025467 AMAQI
13th Nov 2025568 AMAQI
13th Nov 2025569 AMAQI
13th Nov 20255610 AMAQI
13th Nov 20255311 AMAQI
13th Nov 20255312 PMAQI
13th Nov 2025591 PMAQI
13th Nov 2025602 PMAQI
13th Nov 2025573 PMAQI
13th Nov 2025564 PMAQI
13th Nov 2025535 PMAQI
13th Nov 2025556 PMAQI
13th Nov 2025567 PMAQI
13th Nov 2025558 PMAQI
13th Nov 2025539 PMAQI
13th Nov 20255310 PMAQI
13th Nov 20255411 PMAQI
14th Nov 20255512 AMAQI
14th Nov 2025551 AMAQI
14th Nov 2025552 AMAQI
14th Nov 2025563 AMAQI
14th Nov 2025474 AMAQI
14th Nov 2025485 AMAQI
--°C/°C
14th Nov 2025536 AMAQI
6 AM14th Nov 2025547 AMAQI
11 AM
4 PM
11 PM
5 AM
--°C/°C
Day time
Avg. Highest Time
1 PM - 4 PM
45AQI
4 hours / Day
120 hours / Month
Avg. Lowest Time
6 AM - 7 AM
43AQI
2 hours / Day
60 hours / Month
In the last 30 days, during the daytime, the highest AQI was between 1 PM to 4 PM (Avg. 45), while the lowest AQI was between 6 AM to 7 AM (Avg. 43).
Night time
Avg. Highest Time
5 PM - 11 PM
49AQI
7 hours / Day
210 hours / Month
Avg. Lowest Time
5 AM
44AQI
1 hours / Day
30 hours / Month
In the last 30 days, during the daytime, the highest AQI was between 5 PM to 11 PM (Avg. 49), while the lowest AQI was between 5 AM to 5 AM (Avg. 44).
2025 Days Vs Air Quality
Joetsu, Niigata, Japan
2025
78%
248
22%
68
Total number of days with different AQI categories in last 317 days in 2025 (48 days remaining)
Good
248 DaysModerate
68 DaysPoor
0 DaysUnhealthy
0 DaysSevere
0 DaysHazardous
0 DaysUnder WHO’s Safe Air Quality Limits: 78%
Health Risk Level:
Low
In 2025, 78% of 317 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
Joetsu, Niigata, 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.
-1th undefined 2025
-1th undefined 2025
-1th undefined 2025
1st January 2025
32AQI
32AQI
2nd January 2025
30AQI
30AQI
3rd January 2025
28AQI
28AQI
4th January 2025
27AQI
27AQI
5th January 2025
27AQI
27AQI
6th January 2025
31AQI
31AQI
7th January 2025
31AQI
31AQI
8th January 2025
29AQI
29AQI
9th January 2025
30AQI
30AQI
10th January 2025
29AQI
29AQI
11th January 2025
28AQI
28AQI
12th January 2025
31AQI
31AQI
13th January 2025
29AQI
29AQI
14th January 2025
35AQI
35AQI
15th January 2025
28AQI
28AQI
16th January 2025
29AQI
29AQI
17th January 2025
29AQI
29AQI
18th January 2025
28AQI
28AQI
19th January 2025
30AQI
30AQI
20th January 2025
33AQI
33AQI
21st January 2025
40AQI
40AQI
22nd January 2025
34AQI
34AQI
23rd January 2025
46AQI
46AQI
24th January 2025
40AQI
40AQI
25th January 2025
38AQI
38AQI
26th January 2025
31AQI
31AQI
27th January 2025
28AQI
28AQI
28th January 2025
31AQI
31AQI
29th January 2025
30AQI
30AQI
30th January 2025
33AQI
33AQI
31st January 2025
31AQI
31AQI
1st February 2025
34AQI
34AQI
2nd February 2025
31AQI
31AQI
3rd February 2025
32AQI
32AQI
4th February 2025
32AQI
32AQI
5th February 2025
31AQI
31AQI
6th February 2025
31AQI
31AQI
7th February 2025
38AQI
38AQI
8th February 2025
31AQI
31AQI
9th February 2025
32AQI
32AQI
10th February 2025
29AQI
29AQI
11th February 2025
32AQI
32AQI
12th February 2025
31AQI
31AQI
13th February 2025
37AQI
37AQI
14th February 2025
34AQI
34AQI
15th February 2025
32AQI
32AQI
16th February 2025
37AQI
37AQI
17th February 2025
40AQI
40AQI
18th February 2025
32AQI
32AQI
19th February 2025
33AQI
33AQI
20th February 2025
32AQI
32AQI
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
44AQI
44AQI
27th February 2025
51AQI
51AQI
28th February 2025
52AQI
52AQI
1st March 2025
55AQI
55AQI
2nd March 2025
51AQI
51AQI
3rd March 2025
39AQI
39AQI
4th March 2025
39AQI
39AQI
5th March 2025
27AQI
27AQI
6th March 2025
33AQI
33AQI
7th March 2025
38AQI
38AQI
8th March 2025
37AQI
37AQI
9th March 2025
35AQI
35AQI
10th March 2025
42AQI
42AQI
11th March 2025
42AQI
42AQI
12th March 2025
38AQI
38AQI
13th March 2025
54AQI
54AQI
14th March 2025
44AQI
44AQI
15th March 2025
39AQI
39AQI
16th March 2025
29AQI
29AQI
17th March 2025
28AQI
28AQI
18th March 2025
30AQI
30AQI
19th March 2025
24AQI
24AQI
20th March 2025
36AQI
36AQI
21st March 2025
49AQI
49AQI
22nd March 2025
52AQI
52AQI
23rd March 2025
63AQI
63AQI
24th March 2025
62AQI
62AQI
25th March 2025
76AQI
76AQI
26th March 2025
71AQI
71AQI
27th March 2025
72AQI
72AQI
28th March 2025
58AQI
58AQI
29th March 2025
44AQI
44AQI
30th March 2025
35AQI
35AQI
31st March 2025
37AQI
37AQI
1st April 2025
29AQI
29AQI
2nd April 2025
25AQI
25AQI
3rd April 2025
22AQI
22AQI
4th April 2025
24AQI
24AQI
5th April 2025
34AQI
34AQI
6th April 2025
32AQI
32AQI
7th April 2025
37AQI
37AQI
8th April 2025
42AQI
42AQI
9th April 2025
32AQI
32AQI
10th April 2025
42AQI
42AQI
11th April 2025
42AQI
42AQI
12th April 2025
44AQI
44AQI
13th April 2025
31AQI
31AQI
14th April 2025
36AQI
36AQI
15th April 2025
26AQI
26AQI
16th April 2025
38AQI
38AQI
17th April 2025
44AQI
44AQI
18th April 2025
54AQI
54AQI
19th April 2025
59AQI
59AQI
20th April 2025
49AQI
49AQI
21st April 2025
43AQI
43AQI
22nd April 2025
48AQI
48AQI
23rd April 2025
37AQI
37AQI
24th April 2025
25AQI
25AQI
25th April 2025
38AQI
38AQI
26th April 2025
47AQI
47AQI
27th April 2025
48AQI
48AQI
28th April 2025
49AQI
49AQI
29th April 2025
46AQI
46AQI
30th April 2025
43AQI
43AQI
1st May 2025
53AQI
53AQI
2nd May 2025
33AQI
33AQI
3rd May 2025
42AQI
42AQI
4th May 2025
36AQI
36AQI
5th May 2025
40AQI
40AQI
6th May 2025
35AQI
35AQI
7th May 2025
32AQI
32AQI
8th May 2025
32AQI
32AQI
9th May 2025
37AQI
37AQI
10th May 2025
29AQI
29AQI
11th May 2025
28AQI
28AQI
12th May 2025
37AQI
37AQI
13th May 2025
47AQI
47AQI
14th May 2025
50AQI
50AQI
15th May 2025
55AQI
55AQI
16th May 2025
56AQI
56AQI
17th May 2025
42AQI
42AQI
18th May 2025
53AQI
53AQI
19th May 2025
49AQI
49AQI
20th May 2025
61AQI
61AQI
21st May 2025
66AQI
66AQI
22nd May 2025
49AQI
49AQI
23rd May 2025
50AQI
50AQI
24th May 2025
46AQI
46AQI
25th May 2025
34AQI
34AQI
26th May 2025
34AQI
34AQI
27th May 2025
39AQI
39AQI
28th May 2025
37AQI
37AQI
29th May 2025
40AQI
40AQI
30th May 2025
33AQI
33AQI
31st May 2025
30AQI
30AQI
1st June 2025
30AQI
30AQI
2nd June 2025
40AQI
40AQI
3rd June 2025
43AQI
43AQI
4th June 2025
39AQI
39AQI
5th June 2025
45AQI
45AQI
6th June 2025
46AQI
46AQI
7th June 2025
53AQI
53AQI
8th June 2025
56AQI
56AQI
9th June 2025
59AQI
59AQI
10th June 2025
58AQI
58AQI
11th June 2025
47AQI
47AQI
12th June 2025
51AQI
51AQI
13th June 2025
42AQI
42AQI
14th June 2025
41AQI
41AQI
15th June 2025
30AQI
30AQI
16th June 2025
36AQI
36AQI
17th June 2025
39AQI
39AQI
18th June 2025
45AQI
45AQI
19th June 2025
51AQI
51AQI
20th June 2025
55AQI
55AQI
21st June 2025
60AQI
60AQI
22nd June 2025
69AQI
69AQI
23rd June 2025
48AQI
48AQI
24th June 2025
46AQI
46AQI
25th June 2025
50AQI
50AQI
26th June 2025
40AQI
40AQI
27th June 2025
54AQI
54AQI
28th June 2025
42AQI
42AQI
29th June 2025
46AQI
46AQI
30th June 2025
54AQI
54AQI
1st July 2025
52AQI
52AQI
2nd July 2025
64AQI
64AQI
3rd July 2025
66AQI
66AQI
4th July 2025
70AQI
70AQI
5th July 2025
68AQI
68AQI
6th July 2025
58AQI
58AQI
7th July 2025
60AQI
60AQI
8th July 2025
59AQI
59AQI
9th July 2025
55AQI
55AQI
10th July 2025
48AQI
48AQI
11th July 2025
47AQI
47AQI
12th July 2025
46AQI
46AQI
13th July 2025
49AQI
49AQI
14th July 2025
43AQI
43AQI
15th July 2025
38AQI
38AQI
16th July 2025
45AQI
45AQI
17th July 2025
33AQI
33AQI
18th July 2025
36AQI
36AQI
19th July 2025
36AQI
36AQI
20th July 2025
38AQI
38AQI
21st July 2025
38AQI
38AQI
22nd July 2025
41AQI
41AQI
23rd July 2025
41AQI
41AQI
24th July 2025
46AQI
46AQI
25th July 2025
48AQI
48AQI
26th July 2025
45AQI
45AQI
27th July 2025
40AQI
40AQI
28th July 2025
43AQI
43AQI
29th July 2025
39AQI
39AQI
30th July 2025
42AQI
42AQI
31st July 2025
44AQI
44AQI
1st August 2025
41AQI
41AQI
2nd August 2025
41AQI
41AQI
3rd August 2025
44AQI
44AQI
4th August 2025
54AQI
54AQI
5th August 2025
49AQI
49AQI
6th August 2025
43AQI
43AQI
7th August 2025
38AQI
38AQI
8th August 2025
34AQI
34AQI
9th August 2025
34AQI
34AQI
10th August 2025
34AQI
34AQI
11th August 2025
30AQI
30AQI
12th August 2025
31AQI
31AQI
13th August 2025
30AQI
30AQI
14th August 2025
31AQI
31AQI
15th August 2025
33AQI
33AQI
16th August 2025
32AQI
32AQI
17th August 2025
38AQI
38AQI
18th August 2025
40AQI
40AQI
19th August 2025
46AQI
46AQI
20th August 2025
51AQI
51AQI
21st August 2025
51AQI
51AQI
22nd August 2025
51AQI
51AQI
23rd August 2025
52AQI
52AQI
24th August 2025
54AQI
54AQI
25th August 2025
55AQI
55AQI
26th August 2025
55AQI
55AQI
27th August 2025
48AQI
48AQI
28th August 2025
40AQI
40AQI
29th August 2025
48AQI
48AQI
30th August 2025
48AQI
48AQI
31st August 2025
48AQI
48AQI
1st September 2025
43AQI
43AQI
2nd September 2025
40AQI
40AQI
3rd September 2025
33AQI
33AQI
4th September 2025
32AQI
32AQI
5th September 2025
26AQI
26AQI
6th September 2025
27AQI
27AQI
7th September 2025
31AQI
31AQI
8th September 2025
30AQI
30AQI
9th September 2025
36AQI
36AQI
10th September 2025
30AQI
30AQI
11th September 2025
29AQI
29AQI
12th September 2025
28AQI
28AQI
13th September 2025
26AQI
26AQI
14th September 2025
28AQI
28AQI
15th September 2025
29AQI
29AQI
16th September 2025
33AQI
33AQI
17th September 2025
37AQI
37AQI
18th September 2025
28AQI
28AQI
19th September 2025
26AQI
26AQI
20th September 2025
24AQI
24AQI
21st September 2025
26AQI
26AQI
22nd September 2025
24AQI
24AQI
23rd September 2025
29AQI
29AQI
24th September 2025
34AQI
34AQI
25th September 2025
29AQI
29AQI
26th September 2025
26AQI
26AQI
27th September 2025
30AQI
30AQI
28th September 2025
33AQI
33AQI
29th September 2025
31AQI
31AQI
30th September 2025
27AQI
27AQI
1st October 2025
41AQI
41AQI
2nd October 2025
46AQI
46AQI
3rd October 2025
53AQI
53AQI
4th October 2025
60AQI
60AQI
5th October 2025
46AQI
46AQI
6th October 2025
54AQI
54AQI
7th October 2025
52AQI
52AQI
8th October 2025
51AQI
51AQI
9th October 2025
50AQI
50AQI
10th October 2025
56AQI
56AQI
11th October 2025
54AQI
54AQI
12th October 2025
54AQI
54AQI
13th October 2025
48AQI
48AQI
14th October 2025
51AQI
51AQI
15th October 2025
48AQI
48AQI
16th October 2025
52AQI
52AQI
17th October 2025
55AQI
55AQI
18th October 2025
61AQI
61AQI
19th October 2025
54AQI
54AQI
20th October 2025
52AQI
52AQI
21st October 2025
58AQI
58AQI
22nd October 2025
41AQI
41AQI
23rd October 2025
45AQI
45AQI
24th October 2025
41AQI
41AQI
25th October 2025
48AQI
48AQI
26th October 2025
43AQI
43AQI
27th October 2025
39AQI
39AQI
28th October 2025
38AQI
38AQI
29th October 2025
43AQI
43AQI
30th October 2025
60AQI
60AQI
31st October 2025
56AQI
56AQI
1st November 2025
37AQI
37AQI
2nd November 2025
37AQI
37AQI
3rd November 2025
37AQI
37AQI
4th November 2025
33AQI
33AQI
5th November 2025
43AQI
43AQI
6th November 2025
45AQI
45AQI
7th November 2025
57AQI
57AQI
8th November 2025
53AQI
53AQI
9th November 2025
51AQI
51AQI
10th November 2025
44AQI
44AQI
11th November 2025
40AQI
40AQI
12th November 2025
42AQI
42AQI
13th November 2025
14th November 2025
15th November 2025
16th November 2025
17th November 2025
18th November 2025
19th November 2025
20th November 2025
21st November 2025
22nd November 2025
23rd November 2025
24th November 2025
25th November 2025
26th November 2025
27th November 2025
28th November 2025
29th November 2025
30th November 2025
1st December 2025
2nd December 2025
3rd December 2025
4th December 2025
5th December 2025
6th December 2025
7th December 2025
8th December 2025
9th December 2025
10th December 2025
11th December 2025
12th December 2025
13th December 2025
14th December 2025
15th December 2025
16th December 2025
17th December 2025
18th December 2025
19th December 2025
20th December 2025
21st December 2025
22nd December 2025
23rd December 2025
24th December 2025
25th December 2025
26th December 2025
27th December 2025
28th December 2025
29th December 2025
30th December 2025
31st December 2025
31AQI
35AQI
44AQI
39AQI
42AQI
47AQI
48AQI
43AQI
30AQI
50AQI
43AQI
No. of days
Jan.Feb.Mar.Apr.MayJun.Jul.Aug.Sep.Oct.Nov.Dec.Total Days
202541AQI
31
26
2
21
10
28
2
25
6
19
11
22
9
23
8
30
14
17
9
3
248
68
Highest AQI recorded in
October50AQI
Lowest AQI recorded in
September30AQI
202439AQI
30
29
25
6
16
14
25
6
12
18
26
5
27
4
30
30
1
28
2
31
309
56
Highest AQI recorded in
June52AQI
Lowest AQI recorded in
December27AQI
202341AQI
31
27
1
17
14
17
13
19
12
23
7
21
10
28
3
28
2
31
24
4
31
297
66
Highest AQI recorded in
April50AQI
Lowest AQI recorded in
December32AQI
202239AQI
29
2
20
1
24
7
19
11
17
14
19
11
20
4
1
25
3
30
1
28
2
31
263
56
Highest AQI recorded in
May50AQI
Lowest AQI recorded in
December30AQI
202137AQI
29
2
23
5
25
4
16
5
24
5
2
20
10
27
4
23
8
30
30
1
30
23
300
44
2
Highest AQI recorded in
June48AQI
Lowest AQI recorded in
December27AQI
202034AQI
12
1
21
15
3
23
7
28
1
13
16
2
18
1
29
2
26
4
31
216
35
2
Highest AQI recorded in
August54AQI
Lowest AQI recorded in
December21AQI
Most & Least Polluted Years Over the Last 6 Years
Most Polluted Year Recorded
2025(Avg.)
41AQILeast Polluted Year Recorded
2020(Avg.)
34AQIJoetsu's annual 2025 AQI (41) shows an average percentage change of 8.4% (worsened AQI) compared to previous years: 2020 (34), 2021 (37), 2022 (39), 2023 (41), 2024 (39).
