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HistoryAQIPM2.5PM10COSO2NO2O3

Tainai, 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+

October Air Quality Analysis

Tainai, Niigata, Japan

2021
2022
2023
2024
2025
AQI
.
Days

AQI Trends: Highest and Lowest

Highest AQI recorded on
21st Oct 2024
58AQI
Lowest AQI recorded on
12th Oct 2021
18AQI

Same Day Analysis (14th October ):
On this day, AQI across the 5 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

Globe

Day & Night AQI Trend: 15th Oct - 16th Oct 2025

Tainai, Niigata, Japan

AQI
Day
Night
.

5 AM15th Oct 2025

5 PM

4 AM16th Oct 2025

Day time
Avg. Highest Time
12AMNaNth undefined

AQI

Avg. Lowest Time
12AMNaNth undefined

AQI

Night time
Avg. Highest Time
1PM15th Oct

70AQI

Avg. Lowest Time
7AM15th Oct

28AQI

In the last 24 hours,

Tainai's AQI reached its highest point of 70 at 1 PM during the Night, while the lowest point, 28, was recorded at 7 AM during the Night between 15th Oct and 16th Oct 2025.

Day & Night AQI Trend : Sep - Oct 2025

Tainai, Niigata, Japan

SepOct
16th - 17th17th - 18th18th - 19th19th - 20th20th - 21st21st - 22nd22nd - 23rd23rd - 24th24th - 25th25th - 26th26th - 27th27th - 28th28th - 29th29th - 30th30th - 01st01st - 02nd02nd - 03rd03rd - 04th04th - 05th05th - 06th06th - 07th07th - 08th08th - 09th09th - 10th10th - 11th11th - 12th12th - 13th13th - 14th14th - 15th15th - 16th16th
Day
Night
16th Sep 2025345 AMAQI
16th Sep 2025336 AMAQI
16th Sep 2025347 AMAQI
16th Sep 2025338 AMAQI
16th Sep 2025339 AMAQI
16th Sep 20253610 AMAQI
16th Sep 20253411 AMAQI
16th Sep 20253612 PMAQI
16th Sep 2025341 PMAQI
16th Sep 2025342 PMAQI
16th Sep 2025303 PMAQI
16th Sep 2025334 PMAQI
16th Sep 2025355 PMAQI
16th Sep 2025326 PMAQI
16th Sep 2025327 PMAQI
16th Sep 2025348 PMAQI
16th Sep 2025359 PMAQI
16th Sep 20253610 PMAQI
16th Sep 20253611 PMAQI
17th Sep 20254012 AMAQI
17th Sep 2025341 AMAQI
17th Sep 2025332 AMAQI
17th Sep 2025333 AMAQI
17th Sep 2025334 AMAQI

25°C23/28°C

17th Sep 2025345 AMAQI
17th Sep 2025336 AMAQI
17th Sep 2025347 AMAQI
17th Sep 2025338 AMAQI
17th Sep 2025409 AMAQI
17th Sep 20254710 AMAQI
17th Sep 20255111 AMAQI
17th Sep 20255112 PMAQI
17th Sep 2025461 PMAQI
17th Sep 2025492 PMAQI
17th Sep 2025443 PMAQI
17th Sep 2025394 PMAQI
17th Sep 2025495 PMAQI
17th Sep 2025476 PMAQI
17th Sep 2025377 PMAQI
17th Sep 2025398 PMAQI
17th Sep 2025409 PMAQI
17th Sep 20254010 PMAQI
17th Sep 20253811 PMAQI
18th Sep 20253812 AMAQI
18th Sep 2025351 AMAQI
18th Sep 2025342 AMAQI
18th Sep 2025343 AMAQI
18th Sep 2025364 AMAQI

25°C23/28°C

18th Sep 2025385 AMAQI
18th Sep 2025376 AMAQI
18th Sep 2025377 AMAQI
18th Sep 2025378 AMAQI
18th Sep 2025249 AMAQI
18th Sep 20252210 AMAQI
18th Sep 20252011 AMAQI
18th Sep 20252012 PMAQI
18th Sep 2025241 PMAQI
18th Sep 2025272 PMAQI
18th Sep 2025253 PMAQI
18th Sep 2025264 PMAQI
18th Sep 2025245 PMAQI
18th Sep 2025246 PMAQI
18th Sep 2025247 PMAQI
18th Sep 2025268 PMAQI
18th Sep 2025329 PMAQI
18th Sep 20253210 PMAQI
18th Sep 20253211 PMAQI
19th Sep 20253212 AMAQI
19th Sep 2025341 AMAQI
19th Sep 2025372 AMAQI
19th Sep 2025363 AMAQI
19th Sep 2025354 AMAQI

22°C21/24°C

19th Sep 2025345 AMAQI
19th Sep 2025346 AMAQI
19th Sep 2025367 AMAQI
19th Sep 2025368 AMAQI
19th Sep 2025239 AMAQI
19th Sep 20252610 AMAQI
19th Sep 20252111 AMAQI
19th Sep 20252012 PMAQI
19th Sep 2025221 PMAQI
19th Sep 2025212 PMAQI
19th Sep 2025223 PMAQI
19th Sep 2025264 PMAQI
19th Sep 2025275 PMAQI
19th Sep 2025276 PMAQI
19th Sep 2025277 PMAQI
19th Sep 2025278 PMAQI
19th Sep 2025289 PMAQI
19th Sep 20253110 PMAQI
19th Sep 20253111 PMAQI
20th Sep 20253012 AMAQI
20th Sep 2025331 AMAQI
20th Sep 2025322 AMAQI
20th Sep 2025323 AMAQI
20th Sep 2025324 AMAQI

21°C18/23°C

20th Sep 2025295 AMAQI
20th Sep 2025296 AMAQI
20th Sep 2025307 AMAQI
20th Sep 2025308 AMAQI
20th Sep 2025329 AMAQI
20th Sep 20252810 AMAQI
20th Sep 20252211 AMAQI
20th Sep 20251812 PMAQI
20th Sep 2025231 PMAQI
20th Sep 2025212 PMAQI
20th Sep 2025173 PMAQI
20th Sep 2025214 PMAQI
20th Sep 2025265 PMAQI
20th Sep 2025286 PMAQI
20th Sep 2025277 PMAQI
20th Sep 2025278 PMAQI
20th Sep 2025289 PMAQI
20th Sep 20252810 PMAQI
20th Sep 20252811 PMAQI
21st Sep 20252812 AMAQI
21st Sep 2025281 AMAQI
21st Sep 2025292 AMAQI
21st Sep 2025293 AMAQI
21st Sep 2025294 AMAQI

21°C19/25°C

21st Sep 2025295 AMAQI
21st Sep 2025286 AMAQI
21st Sep 2025287 AMAQI
21st Sep 2025288 AMAQI
21st Sep 2025239 AMAQI
21st Sep 20252610 AMAQI
21st Sep 20252611 AMAQI
21st Sep 20252412 PMAQI
21st Sep 2025231 PMAQI
21st Sep 2025202 PMAQI
21st Sep 2025213 PMAQI
21st Sep 2025204 PMAQI
21st Sep 2025215 PMAQI
21st Sep 2025236 PMAQI
21st Sep 2025257 PMAQI
21st Sep 2025288 PMAQI
21st Sep 2025279 PMAQI
21st Sep 20252710 PMAQI
21st Sep 20252711 PMAQI
22nd Sep 20252612 AMAQI
22nd Sep 2025271 AMAQI
22nd Sep 2025282 AMAQI
22nd Sep 2025283 AMAQI
22nd Sep 2025284 AMAQI

21°C20/23°C

22nd Sep 2025275 AMAQI
22nd Sep 2025276 AMAQI
22nd Sep 2025277 AMAQI
22nd Sep 2025278 AMAQI
22nd Sep 2025189 AMAQI
22nd Sep 20252410 AMAQI
22nd Sep 20252211 AMAQI
22nd Sep 20252412 PMAQI
22nd Sep 2025281 PMAQI
22nd Sep 2025252 PMAQI
22nd Sep 2025223 PMAQI
22nd Sep 2025244 PMAQI
22nd Sep 2025245 PMAQI
22nd Sep 2025266 PMAQI
22nd Sep 2025237 PMAQI
22nd Sep 2025258 PMAQI
22nd Sep 2025269 PMAQI
22nd Sep 20252710 PMAQI
22nd Sep 20252711 PMAQI
23rd Sep 20252712 AMAQI
23rd Sep 2025271 AMAQI
23rd Sep 2025282 AMAQI
23rd Sep 2025273 AMAQI
23rd Sep 2025274 AMAQI

21°C17/23°C

23rd Sep 2025275 AMAQI
23rd Sep 2025266 AMAQI
23rd Sep 2025277 AMAQI
23rd Sep 2025278 AMAQI
23rd Sep 2025229 AMAQI
23rd Sep 20252210 AMAQI
23rd Sep 20252611 AMAQI
23rd Sep 20252512 PMAQI
23rd Sep 2025261 PMAQI
23rd Sep 2025302 PMAQI
23rd Sep 2025323 PMAQI
23rd Sep 2025294 PMAQI
23rd Sep 2025325 PMAQI
23rd Sep 2025316 PMAQI
23rd Sep 2025327 PMAQI
23rd Sep 2025308 PMAQI
23rd Sep 2025269 PMAQI
23rd Sep 20252710 PMAQI
23rd Sep 20252811 PMAQI
24th Sep 20252812 AMAQI
24th Sep 2025271 AMAQI
24th Sep 2025282 AMAQI
24th Sep 2025273 AMAQI
24th Sep 2025274 AMAQI

20°C17/24°C

24th Sep 2025285 AMAQI
24th Sep 2025276 AMAQI
24th Sep 2025277 AMAQI
24th Sep 2025278 AMAQI
24th Sep 2025269 AMAQI
24th Sep 20252510 AMAQI
24th Sep 20253411 AMAQI
24th Sep 20253712 PMAQI
24th Sep 2025321 PMAQI
24th Sep 2025302 PMAQI
24th Sep 2025293 PMAQI
24th Sep 2025334 PMAQI
24th Sep 2025325 PMAQI
24th Sep 2025336 PMAQI
24th Sep 2025357 PMAQI
24th Sep 2025338 PMAQI
24th Sep 2025289 PMAQI
24th Sep 20252810 PMAQI
24th Sep 20252811 PMAQI
25th Sep 20252712 AMAQI
25th Sep 2025281 AMAQI
25th Sep 2025282 AMAQI
25th Sep 2025283 AMAQI
25th Sep 2025284 AMAQI

20°C16/26°C

25th Sep 2025275 AMAQI
25th Sep 2025276 AMAQI
25th Sep 2025277 AMAQI
25th Sep 2025278 AMAQI
25th Sep 2025359 AMAQI
25th Sep 20253410 AMAQI
25th Sep 20253511 AMAQI
25th Sep 20253512 PMAQI
25th Sep 2025331 PMAQI
25th Sep 2025442 PMAQI
25th Sep 2025423 PMAQI
25th Sep 2025404 PMAQI
25th Sep 2025375 PMAQI
25th Sep 2025306 PMAQI
25th Sep 2025337 PMAQI
25th Sep 2025418 PMAQI
25th Sep 2025449 PMAQI
25th Sep 20253610 PMAQI
25th Sep 20252511 PMAQI
26th Sep 20252712 AMAQI
26th Sep 2025281 AMAQI
26th Sep 2025232 AMAQI
26th Sep 2025273 AMAQI
26th Sep 2025384 AMAQI

21°C19/23°C

26th Sep 2025305 AMAQI
26th Sep 2025376 AMAQI
26th Sep 2025257 AMAQI
26th Sep 2025318 AMAQI
26th Sep 2025319 AMAQI
26th Sep 20253210 AMAQI
26th Sep 20253611 AMAQI
26th Sep 20253812 PMAQI
26th Sep 2025381 PMAQI
26th Sep 2025422 PMAQI
26th Sep 2025423 PMAQI
26th Sep 2025434 PMAQI
26th Sep 2025435 PMAQI
26th Sep 2025456 PMAQI
26th Sep 2025387 PMAQI
26th Sep 2025388 PMAQI
26th Sep 2025409 PMAQI
26th Sep 20253010 PMAQI
26th Sep 20254811 PMAQI
27th Sep 20253912 AMAQI
27th Sep 2025301 AMAQI
27th Sep 2025282 AMAQI
27th Sep 2025373 AMAQI
27th Sep 2025404 AMAQI

23°C20/25°C

27th Sep 2025405 AMAQI
27th Sep 2025386 AMAQI
27th Sep 2025347 AMAQI
27th Sep 2025388 AMAQI
27th Sep 2025399 AMAQI
27th Sep 20254310 AMAQI
27th Sep 20253911 AMAQI
27th Sep 20253912 PMAQI
27th Sep 2025341 PMAQI
27th Sep 2025242 PMAQI
27th Sep 2025373 PMAQI
27th Sep 2025354 PMAQI
27th Sep 2025415 PMAQI
27th Sep 2025356 PMAQI
27th Sep 2025297 PMAQI
27th Sep 2025378 PMAQI
27th Sep 2025399 PMAQI
27th Sep 20252710 PMAQI
27th Sep 20252311 PMAQI
28th Sep 20252212 AMAQI
28th Sep 2025221 AMAQI
28th Sep 2025222 AMAQI
28th Sep 2025263 AMAQI
28th Sep 2025274 AMAQI

21°C17/24°C

28th Sep 2025265 AMAQI
28th Sep 2025226 AMAQI
28th Sep 2025237 AMAQI
28th Sep 2025228 AMAQI
28th Sep 2025219 AMAQI
28th Sep 20253410 AMAQI
28th Sep 20253011 AMAQI
28th Sep 20253412 PMAQI
28th Sep 2025481 PMAQI
28th Sep 2025412 PMAQI
28th Sep 2025483 PMAQI
28th Sep 2025494 PMAQI
28th Sep 2025395 PMAQI
28th Sep 2025336 PMAQI
28th Sep 2025427 PMAQI
28th Sep 2025448 PMAQI
28th Sep 2025409 PMAQI
28th Sep 20254310 PMAQI
28th Sep 20255111 PMAQI
29th Sep 20254812 AMAQI
29th Sep 2025421 AMAQI
29th Sep 2025542 AMAQI
29th Sep 2025533 AMAQI
29th Sep 2025534 AMAQI

20°C16/24°C

29th Sep 2025515 AMAQI
29th Sep 2025516 AMAQI
29th Sep 2025467 AMAQI
29th Sep 2025358 AMAQI
29th Sep 2025189 AMAQI
29th Sep 20252110 AMAQI
29th Sep 20251811 AMAQI
29th Sep 20253912 PMAQI
29th Sep 2025401 PMAQI
29th Sep 2025152 PMAQI
29th Sep 2025113 PMAQI
29th Sep 2025164 PMAQI
29th Sep 2025265 PMAQI
29th Sep 2025376 PMAQI
29th Sep 2025217 PMAQI
29th Sep 2025308 PMAQI
29th Sep 2025339 PMAQI
29th Sep 20252410 PMAQI
29th Sep 20251711 PMAQI
30th Sep 20251912 AMAQI
30th Sep 2025121 AMAQI
30th Sep 2025192 AMAQI
30th Sep 2025153 AMAQI
30th Sep 2025194 AMAQI

21°C19/23°C

30th Sep 2025215 AMAQI
30th Sep 2025156 AMAQI
30th Sep 2025177 AMAQI
30th Sep 2025168 AMAQI
30th Sep 2025299 AMAQI
30th Sep 20252610 AMAQI
30th Sep 20253311 AMAQI
30th Sep 20253112 PMAQI
30th Sep 2025391 PMAQI
30th Sep 2025222 PMAQI
30th Sep 2025253 PMAQI
30th Sep 2025324 PMAQI
30th Sep 2025345 PMAQI
30th Sep 2025406 PMAQI
30th Sep 2025307 PMAQI
30th Sep 2025378 PMAQI
30th Sep 2025419 PMAQI
30th Sep 20254210 PMAQI
30th Sep 20253911 PMAQI
1st Oct 20254512 AMAQI
1st Oct 2025371 AMAQI
1st Oct 2025342 AMAQI
1st Oct 2025413 AMAQI
1st Oct 2025424 AMAQI

21°C17/23°C

1st Oct 2025405 AMAQI
1st Oct 2025316 AMAQI
1st Oct 2025247 AMAQI
1st Oct 2025288 AMAQI
1st Oct 2025229 AMAQI
1st Oct 20251610 AMAQI
1st Oct 20251711 AMAQI
1st Oct 20253112 PMAQI
1st Oct 2025411 PMAQI
1st Oct 2025422 PMAQI
1st Oct 2025463 PMAQI
1st Oct 2025484 PMAQI
1st Oct 2025495 PMAQI
1st Oct 2025436 PMAQI
1st Oct 2025447 PMAQI
1st Oct 2025288 PMAQI
1st Oct 2025459 PMAQI
1st Oct 20253810 PMAQI
1st Oct 20253311 PMAQI
2nd Oct 20253712 AMAQI
2nd Oct 2025411 AMAQI
2nd Oct 2025402 AMAQI
2nd Oct 2025323 AMAQI
2nd Oct 2025404 AMAQI

19°C17/20°C

2nd Oct 2025385 AMAQI
2nd Oct 2025356 AMAQI
2nd Oct 2025307 AMAQI
2nd Oct 2025348 AMAQI
2nd Oct 2025369 AMAQI
2nd Oct 20253210 AMAQI
2nd Oct 20253211 AMAQI
2nd Oct 20253012 PMAQI
2nd Oct 2025311 PMAQI
2nd Oct 2025382 PMAQI
2nd Oct 2025573 PMAQI
2nd Oct 2025914 PMAQI
2nd Oct 2025945 PMAQI
2nd Oct 2025936 PMAQI
2nd Oct 2025527 PMAQI
2nd Oct 2025448 PMAQI
2nd Oct 2025489 PMAQI
2nd Oct 20254310 PMAQI
2nd Oct 20255411 PMAQI
3rd Oct 20254512 AMAQI
3rd Oct 2025431 AMAQI
3rd Oct 2025402 AMAQI
3rd Oct 2025483 AMAQI
3rd Oct 2025454 AMAQI

19°C16/23°C

3rd Oct 2025455 AMAQI
3rd Oct 2025476 AMAQI
3rd Oct 2025467 AMAQI
3rd Oct 2025478 AMAQI
3rd Oct 2025469 AMAQI
3rd Oct 20254610 AMAQI
3rd Oct 20254811 AMAQI
3rd Oct 20255212 PMAQI
3rd Oct 2025541 PMAQI
3rd Oct 2025542 PMAQI
3rd Oct 2025533 PMAQI
3rd Oct 2025524 PMAQI
3rd Oct 2025465 PMAQI
3rd Oct 2025536 PMAQI
3rd Oct 2025527 PMAQI
3rd Oct 2025458 PMAQI
3rd Oct 2025579 PMAQI
3rd Oct 20255510 PMAQI
3rd Oct 20255611 PMAQI
4th Oct 20256512 AMAQI
4th Oct 2025711 AMAQI
4th Oct 2025612 AMAQI
4th Oct 2025613 AMAQI
4th Oct 2025574 AMAQI

20°C17/24°C

4th Oct 2025545 AMAQI
4th Oct 2025526 AMAQI
4th Oct 2025537 AMAQI
4th Oct 2025558 AMAQI
4th Oct 2025579 AMAQI
4th Oct 20255310 AMAQI
4th Oct 20255511 AMAQI
4th Oct 20255512 PMAQI
4th Oct 2025601 PMAQI
4th Oct 2025582 PMAQI
4th Oct 2025593 PMAQI
4th Oct 2025544 PMAQI
4th Oct 2025545 PMAQI
4th Oct 2025496 PMAQI
4th Oct 2025577 PMAQI
4th Oct 2025628 PMAQI
4th Oct 2025529 PMAQI
4th Oct 20255310 PMAQI
4th Oct 20255011 PMAQI
5th Oct 20255312 AMAQI
5th Oct 2025501 AMAQI
5th Oct 2025522 AMAQI
5th Oct 2025493 AMAQI
5th Oct 2025464 AMAQI

21°C17/26°C

5th Oct 2025515 AMAQI
5th Oct 2025486 AMAQI
5th Oct 2025227 AMAQI
5th Oct 2025418 AMAQI
5th Oct 2025459 AMAQI
5th Oct 20254610 AMAQI
5th Oct 20254811 AMAQI
5th Oct 20255212 PMAQI
5th Oct 2025541 PMAQI
5th Oct 2025512 PMAQI
5th Oct 2025393 PMAQI
5th Oct 2025434 PMAQI
5th Oct 2025485 PMAQI
5th Oct 2025506 PMAQI
5th Oct 2025407 PMAQI
5th Oct 2025378 PMAQI
5th Oct 2025409 PMAQI
5th Oct 20252910 PMAQI
5th Oct 20252811 PMAQI
6th Oct 20252612 AMAQI
6th Oct 2025421 AMAQI
6th Oct 2025442 AMAQI
6th Oct 2025423 AMAQI
6th Oct 2025404 AMAQI

21°C20/24°C

6th Oct 2025375 AMAQI
6th Oct 2025226 AMAQI
6th Oct 2025437 AMAQI
6th Oct 2025468 AMAQI
6th Oct 2025459 AMAQI
6th Oct 20255210 AMAQI
6th Oct 20254911 AMAQI
6th Oct 20254612 PMAQI
6th Oct 2025531 PMAQI
6th Oct 2025542 PMAQI
6th Oct 2025543 PMAQI
6th Oct 2025554 PMAQI
6th Oct 2025545 PMAQI
6th Oct 2025436 PMAQI
6th Oct 2025387 PMAQI
6th Oct 2025398 PMAQI
6th Oct 2025559 PMAQI
6th Oct 20255110 PMAQI
6th Oct 20254911 PMAQI
7th Oct 20254112 AMAQI
7th Oct 2025391 AMAQI
7th Oct 2025372 AMAQI

20°C17/22°C

7th Oct 2025398 PMAQI
7th Oct 2025209 PMAQI
7th Oct 20254110 PMAQI
7th Oct 20254211 PMAQI
8th Oct 20254212 AMAQI
8th Oct 2025481 AMAQI
8th Oct 2025512 AMAQI
8th Oct 2025523 AMAQI
8th Oct 2025514 AMAQI

19°C16/23°C

8th Oct 2025515 AMAQI
8th Oct 2025516 AMAQI
8th Oct 2025537 AMAQI
8th Oct 2025548 AMAQI
8th Oct 2025439 AMAQI
8th Oct 20254010 AMAQI
8th Oct 20254411 AMAQI
8th Oct 20254912 PMAQI
8th Oct 2025511 PMAQI
8th Oct 2025542 PMAQI
8th Oct 2025483 PMAQI
8th Oct 2025484 PMAQI
8th Oct 2025505 PMAQI
8th Oct 2025526 PMAQI
8th Oct 2025567 PMAQI
8th Oct 2025568 PMAQI
8th Oct 2025539 PMAQI
8th Oct 20255310 PMAQI
8th Oct 20255511 PMAQI
9th Oct 20255312 AMAQI
9th Oct 2025481 AMAQI
9th Oct 2025442 AMAQI
9th Oct 2025403 AMAQI
9th Oct 2025404 AMAQI

20°C18/23°C

9th Oct 2025385 AMAQI
9th Oct 2025426 AMAQI
9th Oct 2025417 AMAQI
9th Oct 2025428 AMAQI
9th Oct 2025469 AMAQI
9th Oct 20254310 AMAQI
9th Oct 20254711 AMAQI
9th Oct 20253912 PMAQI
9th Oct 2025421 PMAQI
9th Oct 2025382 PMAQI
9th Oct 2025513 PMAQI
9th Oct 2025564 PMAQI
9th Oct 2025555 PMAQI
9th Oct 2025506 PMAQI
9th Oct 2025457 PMAQI
9th Oct 2025428 PMAQI
9th Oct 2025459 PMAQI
9th Oct 20254610 PMAQI
9th Oct 20255211 PMAQI
10th Oct 20255512 AMAQI
10th Oct 2025531 AMAQI
10th Oct 2025482 AMAQI
10th Oct 2025423 AMAQI
10th Oct 2025454 AMAQI

19°C17/20°C

10th Oct 2025525 AMAQI
10th Oct 2025316 AMAQI
10th Oct 2025337 AMAQI
10th Oct 2025408 AMAQI
10th Oct 2025509 AMAQI
10th Oct 20255310 AMAQI
10th Oct 20254811 AMAQI
10th Oct 20254812 PMAQI
10th Oct 2025511 PMAQI
10th Oct 2025472 PMAQI
10th Oct 2025493 PMAQI
10th Oct 2025524 PMAQI
10th Oct 2025555 PMAQI
10th Oct 2025526 PMAQI
10th Oct 2025527 PMAQI
10th Oct 2025498 PMAQI
10th Oct 2025489 PMAQI
10th Oct 20254810 PMAQI
10th Oct 20255411 PMAQI
11th Oct 20255312 AMAQI
11th Oct 2025481 AMAQI
11th Oct 2025462 AMAQI
11th Oct 2025483 AMAQI
11th Oct 2025444 AMAQI

18°C17/20°C

11th Oct 2025455 AMAQI
11th Oct 2025366 AMAQI
11th Oct 2025397 AMAQI
11th Oct 2025398 AMAQI
11th Oct 2025379 AMAQI
11th Oct 20253110 AMAQI
11th Oct 20254411 AMAQI
11th Oct 20254412 PMAQI
11th Oct 2025421 PMAQI
11th Oct 2025442 PMAQI
11th Oct 2025453 PMAQI
11th Oct 2025494 PMAQI
11th Oct 2025445 PMAQI
11th Oct 2025366 PMAQI
11th Oct 2025387 PMAQI
11th Oct 2025398 PMAQI
11th Oct 2025359 PMAQI
11th Oct 20253910 PMAQI
11th Oct 20253811 PMAQI
12th Oct 20253912 AMAQI
12th Oct 2025371 AMAQI
12th Oct 2025382 AMAQI
12th Oct 2025393 AMAQI
12th Oct 2025354 AMAQI

16°C15/16°C

12th Oct 2025315 AMAQI
12th Oct 2025266 AMAQI
12th Oct 2025257 AMAQI
12th Oct 2025228 AMAQI
12th Oct 2025259 AMAQI
12th Oct 20252410 AMAQI
12th Oct 20251711 AMAQI
12th Oct 20252012 PMAQI
12th Oct 2025291 PMAQI
12th Oct 2025462 PMAQI
12th Oct 2025443 PMAQI
12th Oct 2025494 PMAQI
12th Oct 2025435 PMAQI
12th Oct 2025486 PMAQI
12th Oct 2025397 PMAQI
12th Oct 2025398 PMAQI
12th Oct 2025519 PMAQI
12th Oct 20255610 PMAQI
12th Oct 20255511 PMAQI
13th Oct 20255712 AMAQI
13th Oct 2025491 AMAQI
13th Oct 2025482 AMAQI
13th Oct 2025463 AMAQI
13th Oct 2025434 AMAQI

20°C15/24°C

13th Oct 2025275 AMAQI
13th Oct 2025276 AMAQI
13th Oct 2025257 AMAQI
13th Oct 2025408 AMAQI
13th Oct 2025469 AMAQI
13th Oct 20254510 AMAQI
13th Oct 20254711 AMAQI
13th Oct 20254012 PMAQI
13th Oct 2025481 PMAQI
13th Oct 2025502 PMAQI
13th Oct 2025433 PMAQI
13th Oct 2025484 PMAQI
13th Oct 2025425 PMAQI
13th Oct 2025386 PMAQI
13th Oct 2025437 PMAQI
13th Oct 2025448 PMAQI
13th Oct 2025459 PMAQI
13th Oct 20255210 PMAQI
13th Oct 20255111 PMAQI
14th Oct 20255612 AMAQI
14th Oct 2025511 AMAQI
14th Oct 2025482 AMAQI
14th Oct 2025443 AMAQI
14th Oct 2025474 AMAQI

19°C16/21°C

14th Oct 2025535 AMAQI
14th Oct 2025516 AMAQI
14th Oct 2025487 AMAQI
14th Oct 2025488 AMAQI
14th Oct 2025429 AMAQI
14th Oct 20254210 AMAQI
14th Oct 20254311 AMAQI
14th Oct 20254612 PMAQI
14th Oct 2025441 PMAQI
14th Oct 2025542 PMAQI
14th Oct 2025553 PMAQI
14th Oct 2025534 PMAQI
14th Oct 2025545 PMAQI
14th Oct 2025566 PMAQI
14th Oct 2025517 PMAQI
14th Oct 2025528 PMAQI
14th Oct 2025509 PMAQI
14th Oct 20254910 PMAQI
14th Oct 20254011 PMAQI
15th Oct 20255012 AMAQI
15th Oct 2025511 AMAQI
15th Oct 2025512 AMAQI
15th Oct 2025353 AMAQI
15th Oct 2025284 AMAQI

17°C15/20°C

15th Oct 2025405 AMAQI
15th Oct 2025356 AMAQI
15th Oct 2025287 AMAQI
15th Oct 2025388 AMAQI
15th Oct 2025399 AMAQI
15th Oct 20253710 AMAQI
15th Oct 20255511 AMAQI
15th Oct 20256712 PMAQI
15th Oct 2025701 PMAQI
15th Oct 2025442 PMAQI
15th Oct 2025453 PMAQI
15th Oct 2025434 PMAQI
15th Oct 2025515 PMAQI
15th Oct 2025566 PMAQI
15th Oct 2025597 PMAQI
15th Oct 2025588 PMAQI
15th Oct 2025579 PMAQI
15th Oct 20255110 PMAQI
15th Oct 20255211 PMAQI
16th Oct 20255212 AMAQI
16th Oct 2025561 AMAQI
16th Oct 2025572 AMAQI
16th Oct 2025543 AMAQI
16th Oct 2025474 AMAQI

--°C/°C

16th Oct 2025465 AMAQI
5 AM
11 AM
5 PM
11 PM
4 AM

--°C/°C

Day time
Avg. Highest Time
4 PM - 5 PM

42AQI

2 hours / Day
60 hours / Month
Avg. Lowest Time
7 AM

33AQI

1 hours / Day
30 hours / Month
In the last 30 days, during the daytime, the highest AQI was between 4 PM to 5 PM (Avg. 42), while the lowest AQI was between 7 AM to 7 AM (Avg. 33).
Night time
Avg. Highest Time
6 PM

42AQI

1 hours / Day
30 hours / Month
Avg. Lowest Time
12 AM - 4 AM

39AQI

5 hours / Day
150 hours / Month
In the last 30 days, during the daytime, the highest AQI was between 6 PM to 6 PM (Avg. 42), while the lowest AQI was between 12 AM to 4 AM (Avg. 39).

2025 Days Vs Air Quality

Tainai, Niigata, Japan

2025

85%

245

15%

42

Total number of days with different AQI categories in last 288 days in 2025 (77 days remaining)

Good
245 Days
Moderate
42 Days
Poor
0 Days
Unhealthy
0 Days
Severe
0 Days
Hazardous
0 Days

Under WHO’s Safe Air Quality Limits: 85%

Health Risk Level:

Low

In 2025, 85% of 288 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

Tainai, 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
2nd January 2025
29AQI
3rd January 2025
27AQI
4th January 2025
27AQI
5th January 2025
26AQI
6th January 2025
29AQI
7th January 2025
29AQI
8th January 2025
26AQI
9th January 2025
27AQI
10th January 2025
27AQI
11th January 2025
28AQI
12th January 2025
26AQI
13th January 2025
28AQI
14th January 2025
27AQI
15th January 2025
28AQI
16th January 2025
26AQI
17th January 2025
26AQI
18th January 2025
29AQI
19th January 2025
30AQI
20th January 2025
39AQI
21st January 2025
45AQI
22nd January 2025
34AQI
23rd January 2025
42AQI
24th January 2025
41AQI
25th January 2025
33AQI
26th January 2025
29AQI
27th January 2025
29AQI
28th January 2025
28AQI
29th January 2025
29AQI
30th January 2025
30AQI
31st January 2025
30AQI
1st February 2025
33AQI
2nd February 2025
31AQI
3rd February 2025
29AQI
4th February 2025
32AQI
5th February 2025
30AQI
6th February 2025
31AQI
7th February 2025
33AQI
8th February 2025
31AQI
9th February 2025
31AQI
10th February 2025
31AQI
11th February 2025
32AQI
12th February 2025
36AQI
13th February 2025
34AQI
14th February 2025
34AQI
15th February 2025
31AQI
16th February 2025
37AQI
17th February 2025
60AQI
18th February 2025
38AQI
19th February 2025
60AQI
20th February 2025
52AQI
21st February 2025
42AQI
22nd February 2025
37AQI
23rd February 2025
34AQI
24th February 2025
33AQI
25th February 2025
35AQI
26th February 2025
48AQI
27th February 2025
49AQI
28th February 2025
60AQI
1st March 2025
54AQI
2nd March 2025
61AQI
3rd March 2025
41AQI
4th March 2025
41AQI
5th March 2025
31AQI
6th March 2025
34AQI
7th March 2025
35AQI
8th March 2025
37AQI
9th March 2025
34AQI
10th March 2025
44AQI
11th March 2025
45AQI
12th March 2025
42AQI
13th March 2025
50AQI
14th March 2025
44AQI
15th March 2025
46AQI
16th March 2025
27AQI
17th March 2025
24AQI
18th March 2025
29AQI
19th March 2025
25AQI
20th March 2025
34AQI
21st March 2025
51AQI
22nd March 2025
56AQI
23rd March 2025
50AQI
24th March 2025
54AQI
25th March 2025
70AQI
26th March 2025
63AQI
27th March 2025
67AQI
28th March 2025
54AQI
29th March 2025
42AQI
30th March 2025
39AQI
31st March 2025
36AQI
1st April 2025
30AQI
2nd April 2025
25AQI
3rd April 2025
24AQI
4th April 2025
23AQI
5th April 2025
32AQI
6th April 2025
31AQI
7th April 2025
33AQI
8th April 2025
43AQI
9th April 2025
33AQI
10th April 2025
44AQI
11th April 2025
44AQI
12th April 2025
45AQI
13th April 2025
31AQI
14th April 2025
24AQI
15th April 2025
23AQI
16th April 2025
32AQI
17th April 2025
44AQI
18th April 2025
52AQI
19th April 2025
61AQI
20th April 2025
50AQI
21st April 2025
43AQI
22nd April 2025
51AQI
23rd April 2025
34AQI
24th April 2025
29AQI
25th April 2025
30AQI
26th April 2025
47AQI
27th April 2025
47AQI
28th April 2025
51AQI
29th April 2025
35AQI
30th April 2025
33AQI
1st May 2025
41AQI
2nd May 2025
27AQI
3rd May 2025
35AQI
4th May 2025
35AQI
5th May 2025
40AQI
6th May 2025
34AQI
7th May 2025
33AQI
8th May 2025
34AQI
9th May 2025
41AQI
10th May 2025
28AQI
11th May 2025
34AQI
12th May 2025
31AQI
13th May 2025
46AQI
14th May 2025
47AQI
15th May 2025
51AQI
16th May 2025
56AQI
17th May 2025
41AQI
18th May 2025
51AQI
19th May 2025
47AQI
20th May 2025
57AQI
21st May 2025
61AQI
22nd May 2025
49AQI
23rd May 2025
47AQI
24th May 2025
42AQI
25th May 2025
31AQI
26th May 2025
33AQI
27th May 2025
33AQI
28th May 2025
35AQI
29th May 2025
38AQI
30th May 2025
37AQI
31st May 2025
26AQI
1st June 2025
26AQI
2nd June 2025
36AQI
3rd June 2025
41AQI
4th June 2025
37AQI
5th June 2025
40AQI
6th June 2025
45AQI
7th June 2025
52AQI
8th June 2025
58AQI
9th June 2025
61AQI
10th June 2025
57AQI
11th June 2025
48AQI
12th June 2025
50AQI
13th June 2025
42AQI
14th June 2025
42AQI
15th June 2025
29AQI
16th June 2025
28AQI
17th June 2025
35AQI
18th June 2025
37AQI
19th June 2025
40AQI
20th June 2025
42AQI
21st June 2025
44AQI
22nd June 2025
52AQI
23rd June 2025
45AQI
24th June 2025
45AQI
25th June 2025
48AQI
26th June 2025
42AQI
27th June 2025
49AQI
28th June 2025
41AQI
29th June 2025
44AQI
30th June 2025
48AQI
1st July 2025
50AQI
2nd July 2025
55AQI
3rd July 2025
63AQI
4th July 2025
63AQI
5th July 2025
58AQI
6th July 2025
57AQI
7th July 2025
58AQI
8th July 2025
58AQI
9th July 2025
56AQI
10th July 2025
52AQI
11th July 2025
49AQI
12th July 2025
49AQI
13th July 2025
52AQI
14th July 2025
45AQI
15th July 2025
43AQI
16th July 2025
46AQI
17th July 2025
39AQI
18th July 2025
42AQI
19th July 2025
43AQI
20th July 2025
42AQI
21st July 2025
43AQI
22nd July 2025
42AQI
23rd July 2025
43AQI
24th July 2025
46AQI
25th July 2025
48AQI
26th July 2025
50AQI
27th July 2025
47AQI
28th July 2025
45AQI
29th July 2025
43AQI
30th July 2025
45AQI
31st July 2025
41AQI
1st August 2025
35AQI
2nd August 2025
38AQI
3rd August 2025
41AQI
4th August 2025
48AQI
5th August 2025
47AQI
6th August 2025
42AQI
7th August 2025
38AQI
8th August 2025
36AQI
9th August 2025
35AQI
10th August 2025
37AQI
11th August 2025
34AQI
12th August 2025
32AQI
13th August 2025
32AQI
14th August 2025
32AQI
15th August 2025
32AQI
16th August 2025
32AQI
17th August 2025
36AQI
18th August 2025
39AQI
19th August 2025
42AQI
20th August 2025
48AQI
21st August 2025
49AQI
22nd August 2025
49AQI
23rd August 2025
48AQI
24th August 2025
51AQI
25th August 2025
51AQI
26th August 2025
54AQI
27th August 2025
46AQI
28th August 2025
42AQI
29th August 2025
45AQI
30th August 2025
50AQI
31st August 2025
47AQI
1st September 2025
46AQI
2nd September 2025
38AQI
3rd September 2025
35AQI
4th September 2025
38AQI
5th September 2025
34AQI
6th September 2025
28AQI
7th September 2025
30AQI
8th September 2025
33AQI
9th September 2025
36AQI
10th September 2025
34AQI
11th September 2025
33AQI
12th September 2025
32AQI
13th September 2025
28AQI
14th September 2025
30AQI
15th September 2025
31AQI
16th September 2025
34AQI
17th September 2025
40AQI
18th September 2025
31AQI
19th September 2025
29AQI
20th September 2025
28AQI
21st September 2025
26AQI
22nd September 2025
26AQI
23rd September 2025
28AQI
24th September 2025
29AQI
25th September 2025
32AQI
26th September 2025
34AQI
27th September 2025
37AQI
28th September 2025
32AQI
29th September 2025
37AQI
30th September 2025
26AQI
1st October 2025
37AQI
2nd October 2025
45AQI
3rd October 2025
48AQI
4th October 2025
56AQI
5th October 2025
46AQI
6th October 2025
37AQI
7th October 2025
36AQI
8th October 2025
48AQI
9th October 2025
46AQI
10th October 2025
49AQI
11th October 2025
44AQI
12th October 2025
37AQI
13th October 2025
45AQI
14th October 2025
51AQI
15th October 2025
16th October 2025
17th October 2025
18th October 2025
19th October 2025
20th October 2025
21st October 2025
22nd October 2025
23rd October 2025
24th October 2025
25th October 2025
26th October 2025
27th October 2025
28th October 2025
29th October 2025
30th October 2025
31st October 2025
1st November 2025
2nd November 2025
3rd November 2025
4th November 2025
5th November 2025
6th November 2025
7th November 2025
8th November 2025
9th November 2025
10th November 2025
11th November 2025
12th November 2025
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

30AQI

38AQI

44AQI

37AQI

40AQI

43AQI

49AQI

42AQI

33AQI

45AQI

No. of days

Jan.Feb.Mar.Apr.MayJun.Jul.Aug.Sep.Oct.Nov.Dec.Total Days

202540AQI

31
24
4
22
9
26
4
26
5
25
5
21
10
28
3
30
12
2
245
42

Highest AQI recorded in

July

49AQI

Lowest AQI recorded in

January

30AQI

202437AQI

31
27
2
25
6
11
18
1
28
3
16
14
26
5
30
1
30
30
1
29
1
31
314
51
1

Highest AQI recorded in

April

56AQI

Lowest AQI recorded in

December

27AQI

202340AQI

31
26
2
18
12
1
14
15
1
22
8
1
25
5
20
11
29
2
28
2
31
25
4
29
2
298
63
3

Highest AQI recorded in

April

55AQI

Lowest AQI recorded in

December

31AQI

202236AQI

30
19
2
27
4
22
8
20
11
22
8
21
1
27
1
28
3
30
31
278
37

Highest AQI recorded in

May

47AQI

Lowest AQI recorded in

December

27AQI

202134AQI

29
2
24
4
26
3
17
4
28
3
22
8
31
29
2
30
31
29
1
19
315
27

Highest AQI recorded in

June

44AQI

Lowest AQI recorded in

December

25AQI

202030AQI

12
1
17
4
15
3
23
7
28
1
24
5
2
19
31
29
1
31
229
22
2

Highest AQI recorded in

August

45AQI

Lowest AQI recorded in

December

21AQI

Most & Least Polluted Years Over the Last 6 Years

Most Polluted Year Recorded
2023(Avg.)
40AQI
Least Polluted Year Recorded
2020(Avg.)
30AQI

Tainai's annual 2025 AQI (40) shows an average percentage change of 12.6% (worsened AQI) compared to previous years: 2020 (30), 2021 (34), 2022 (36), 2023 (40), 2024 (37).