Hayami District, Hiji, Oita, 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
Hayami District, Hiji, Oita, Japan
2021
2022
2023
2024
2025
AQI
.
Days
AQI Trends: Highest and Lowest
Highest AQI recorded on
19th Oct 2023
82AQILowest AQI recorded on
7th Oct 2024
22AQISame Day Analysis (15th October ):
On this day, AQI across the 5 years varied significantly: 2025 ranks 1st highest AQI at 55 of Moderate air quality on the same day.
Download 2024 Annual Data
World Air Quality Report
Day & Night AQI Trend: 15th Oct - 16th Oct 2025
Hayami District, Hiji, Oita, Japan
AQI
Day
Night
.
6 AM15th Oct 2025
6 PM
5 AM16th Oct 2025
Day time
Avg. Highest Time
6AM15th Oct
60AQI
Avg. Lowest Time
8AM15th Oct
40AQI
Night time
Avg. Highest Time
5AM16th Oct
61AQI
Avg. Lowest Time
8PM15th Oct
44AQI
In the last 24 hours,
Hayami District's AQI reached its highest point of 61 at 5 AM during the Night, while the lowest point, 40, was recorded at 8 AM during the Day between 15th Oct and 16th Oct 2025.
Day & Night AQI Trend : Sep - Oct 2025
Hayami District, Hiji, Oita, 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 2025336 AMAQI
16th Sep 2025347 AMAQI
16th Sep 2025338 AMAQI
16th Sep 2025329 AMAQI
16th Sep 20254810 AMAQI
16th Sep 20254211 AMAQI
16th Sep 20254712 PMAQI
16th Sep 2025511 PMAQI
16th Sep 2025642 PMAQI
16th Sep 2025573 PMAQI
16th Sep 2025544 PMAQI
16th Sep 2025585 PMAQI
16th Sep 2025566 PMAQI
16th Sep 2025577 PMAQI
16th Sep 2025548 PMAQI
16th Sep 2025539 PMAQI
16th Sep 20254410 PMAQI
16th Sep 20254211 PMAQI
17th Sep 20255012 AMAQI
17th Sep 2025381 AMAQI
17th Sep 2025342 AMAQI
17th Sep 2025333 AMAQI
17th Sep 2025354 AMAQI
17th Sep 2025385 AMAQI
26°C22/31°C
17th Sep 2025386 AMAQI
17th Sep 2025377 AMAQI
17th Sep 2025388 AMAQI
17th Sep 2025509 AMAQI
17th Sep 20255010 AMAQI
17th Sep 20255111 AMAQI
17th Sep 20255312 PMAQI
17th Sep 2025541 PMAQI
17th Sep 2025502 PMAQI
17th Sep 2025443 PMAQI
17th Sep 2025384 PMAQI
17th Sep 2025325 PMAQI
17th Sep 2025386 PMAQI
17th Sep 2025387 PMAQI
17th Sep 2025438 PMAQI
17th Sep 2025389 PMAQI
17th Sep 20253810 PMAQI
17th Sep 20253611 PMAQI
18th Sep 20253312 AMAQI
18th Sep 2025341 AMAQI
18th Sep 2025382 AMAQI
18th Sep 2025383 AMAQI
18th Sep 2025394 AMAQI
18th Sep 2025415 AMAQI
26°C22/32°C
18th Sep 2025416 AMAQI
18th Sep 2025427 AMAQI
18th Sep 2025428 AMAQI
18th Sep 2025249 AMAQI
18th Sep 20251810 AMAQI
18th Sep 20251711 AMAQI
18th Sep 20251212 PMAQI
18th Sep 2025151 PMAQI
18th Sep 2025212 PMAQI
18th Sep 2025203 PMAQI
18th Sep 2025184 PMAQI
18th Sep 2025225 PMAQI
18th Sep 2025246 PMAQI
18th Sep 2025227 PMAQI
18th Sep 2025238 PMAQI
18th Sep 2025289 PMAQI
18th Sep 20252810 PMAQI
18th Sep 20252811 PMAQI
19th Sep 20252712 AMAQI
19th Sep 2025291 AMAQI
19th Sep 2025382 AMAQI
19th Sep 2025363 AMAQI
19th Sep 2025364 AMAQI
19th Sep 2025335 AMAQI
24°C21/30°C
19th Sep 2025346 AMAQI
19th Sep 2025347 AMAQI
19th Sep 2025348 AMAQI
19th Sep 2025189 AMAQI
19th Sep 20251310 AMAQI
19th Sep 20251311 AMAQI
19th Sep 20251412 PMAQI
19th Sep 2025161 PMAQI
19th Sep 2025202 PMAQI
19th Sep 2025203 PMAQI
19th Sep 2025234 PMAQI
19th Sep 2025185 PMAQI
19th Sep 2025176 PMAQI
19th Sep 2025197 PMAQI
19th Sep 2025248 PMAQI
19th Sep 2025309 PMAQI
19th Sep 20252810 PMAQI
19th Sep 20253011 PMAQI
20th Sep 20253012 AMAQI
20th Sep 2025361 AMAQI
20th Sep 2025352 AMAQI
20th Sep 2025323 AMAQI
20th Sep 2025314 AMAQI
20th Sep 2025295 AMAQI
24°C22/27°C
20th Sep 2025296 AMAQI
20th Sep 2025307 AMAQI
20th Sep 2025308 AMAQI
20th Sep 2025399 AMAQI
20th Sep 20253610 AMAQI
20th Sep 20253411 AMAQI
20th Sep 20252812 PMAQI
20th Sep 2025281 PMAQI
20th Sep 2025482 PMAQI
20th Sep 2025483 PMAQI
20th Sep 2025344 PMAQI
20th Sep 2025305 PMAQI
20th Sep 2025406 PMAQI
20th Sep 2025377 PMAQI
20th Sep 2025368 PMAQI
20th Sep 2025339 PMAQI
20th Sep 20252610 PMAQI
20th Sep 20252711 PMAQI
21st Sep 20252612 AMAQI
21st Sep 2025271 AMAQI
21st Sep 2025302 AMAQI
21st Sep 2025303 AMAQI
21st Sep 2025324 AMAQI
21st Sep 2025325 AMAQI
25°C22/31°C
21st Sep 2025336 AMAQI
21st Sep 2025337 AMAQI
21st Sep 2025338 AMAQI
21st Sep 2025209 AMAQI
21st Sep 20251610 AMAQI
21st Sep 20251611 AMAQI
21st Sep 20251512 PMAQI
21st Sep 2025131 PMAQI
21st Sep 2025152 PMAQI
21st Sep 2025183 PMAQI
21st Sep 2025234 PMAQI
21st Sep 2025245 PMAQI
21st Sep 2025206 PMAQI
21st Sep 2025227 PMAQI
21st Sep 2025288 PMAQI
21st Sep 2025289 PMAQI
21st Sep 20252710 PMAQI
21st Sep 20252711 PMAQI
22nd Sep 20252512 AMAQI
22nd Sep 2025251 AMAQI
22nd Sep 2025262 AMAQI
22nd Sep 2025293 AMAQI
22nd Sep 2025284 AMAQI
22nd Sep 2025275 AMAQI
23°C20/28°C
22nd Sep 2025276 AMAQI
22nd Sep 2025277 AMAQI
22nd Sep 2025288 AMAQI
22nd Sep 2025249 AMAQI
22nd Sep 20252010 AMAQI
22nd Sep 20251711 AMAQI
22nd Sep 20251812 PMAQI
22nd Sep 2025201 PMAQI
22nd Sep 2025222 PMAQI
22nd Sep 2025193 PMAQI
22nd Sep 2025214 PMAQI
22nd Sep 2025265 PMAQI
22nd Sep 2025246 PMAQI
22nd Sep 2025287 PMAQI
22nd Sep 2025278 PMAQI
22nd Sep 2025259 PMAQI
22nd Sep 20252610 PMAQI
22nd Sep 20252811 PMAQI
23rd Sep 20253112 AMAQI
23rd Sep 2025311 AMAQI
23rd Sep 2025272 AMAQI
23rd Sep 2025263 AMAQI
23rd Sep 2025264 AMAQI
23rd Sep 2025265 AMAQI
22°C19/25°C
23rd Sep 2025266 AMAQI
23rd Sep 2025257 AMAQI
23rd Sep 2025268 AMAQI
23rd Sep 2025229 AMAQI
23rd Sep 20251710 AMAQI
23rd Sep 20251811 AMAQI
23rd Sep 20251712 PMAQI
23rd Sep 2025191 PMAQI
23rd Sep 2025242 PMAQI
23rd Sep 2025303 PMAQI
23rd Sep 2025284 PMAQI
23rd Sep 2025335 PMAQI
23rd Sep 2025286 PMAQI
23rd Sep 2025307 PMAQI
23rd Sep 2025328 PMAQI
23rd Sep 2025309 PMAQI
23rd Sep 20253110 PMAQI
23rd Sep 20252611 PMAQI
24th Sep 20252512 AMAQI
24th Sep 2025281 AMAQI
24th Sep 2025282 AMAQI
24th Sep 2025283 AMAQI
24th Sep 2025274 AMAQI
24th Sep 2025265 AMAQI
23°C21/24°C
24th Sep 2025266 AMAQI
24th Sep 2025267 AMAQI
24th Sep 2025278 AMAQI
24th Sep 2025219 AMAQI
24th Sep 20251610 AMAQI
24th Sep 20251911 AMAQI
24th Sep 20251812 PMAQI
24th Sep 2025241 PMAQI
24th Sep 2025312 PMAQI
24th Sep 2025323 PMAQI
24th Sep 2025304 PMAQI
24th Sep 2025205 PMAQI
24th Sep 2025196 PMAQI
24th Sep 2025197 PMAQI
24th Sep 2025228 PMAQI
24th Sep 2025239 PMAQI
24th Sep 20252410 PMAQI
24th Sep 20252611 PMAQI
25th Sep 20252612 AMAQI
25th Sep 2025271 AMAQI
25th Sep 2025272 AMAQI
25th Sep 2025273 AMAQI
25th Sep 2025264 AMAQI
25th Sep 2025265 AMAQI
23°C21/25°C
25th Sep 2025266 AMAQI
25th Sep 2025267 AMAQI
25th Sep 2025268 AMAQI
25th Sep 2025229 AMAQI
25th Sep 20251810 AMAQI
25th Sep 20251611 AMAQI
25th Sep 20251712 PMAQI
25th Sep 2025181 PMAQI
25th Sep 2025262 PMAQI
25th Sep 2025303 PMAQI
25th Sep 2025304 PMAQI
25th Sep 2025305 PMAQI
25th Sep 2025306 PMAQI
25th Sep 2025297 PMAQI
25th Sep 2025278 PMAQI
25th Sep 2025289 PMAQI
25th Sep 20252310 PMAQI
25th Sep 20252211 PMAQI
26th Sep 20252212 AMAQI
26th Sep 2025221 AMAQI
26th Sep 2025222 AMAQI
26th Sep 2025203 AMAQI
26th Sep 2025224 AMAQI
26th Sep 2025215 AMAQI
24°C21/28°C
26th Sep 2025186 AMAQI
26th Sep 2025237 AMAQI
26th Sep 2025438 AMAQI
26th Sep 2025419 AMAQI
26th Sep 20252510 AMAQI
26th Sep 20252811 AMAQI
26th Sep 20254212 PMAQI
26th Sep 2025351 PMAQI
26th Sep 2025312 PMAQI
26th Sep 2025393 PMAQI
26th Sep 2025454 PMAQI
26th Sep 2025485 PMAQI
26th Sep 2025586 PMAQI
26th Sep 2025447 PMAQI
26th Sep 2025318 PMAQI
26th Sep 2025239 PMAQI
26th Sep 20251910 PMAQI
26th Sep 20252011 PMAQI
27th Sep 20252712 AMAQI
27th Sep 2025241 AMAQI
27th Sep 2025242 AMAQI
27th Sep 2025273 AMAQI
27th Sep 2025314 AMAQI
27th Sep 2025295 AMAQI
24°C21/29°C
27th Sep 2025226 AMAQI
27th Sep 2025227 AMAQI
27th Sep 2025258 AMAQI
27th Sep 2025289 AMAQI
27th Sep 20252810 AMAQI
27th Sep 20253011 AMAQI
27th Sep 20252912 PMAQI
27th Sep 2025281 PMAQI
27th Sep 2025352 PMAQI
27th Sep 2025273 PMAQI
27th Sep 2025184 PMAQI
27th Sep 2025185 PMAQI
27th Sep 2025206 PMAQI
27th Sep 2025227 PMAQI
27th Sep 2025228 PMAQI
27th Sep 2025259 PMAQI
27th Sep 20253010 PMAQI
27th Sep 20252811 PMAQI
28th Sep 20252812 AMAQI
28th Sep 2025241 AMAQI
28th Sep 2025242 AMAQI
28th Sep 2025273 AMAQI
28th Sep 2025244 AMAQI
28th Sep 2025225 AMAQI
21°C19/24°C
28th Sep 2025236 AMAQI
28th Sep 2025317 AMAQI
28th Sep 2025338 AMAQI
28th Sep 2025309 AMAQI
28th Sep 20252810 AMAQI
28th Sep 20252711 AMAQI
28th Sep 20252812 PMAQI
28th Sep 2025241 PMAQI
28th Sep 2025252 PMAQI
28th Sep 2025243 PMAQI
28th Sep 2025264 PMAQI
28th Sep 2025285 PMAQI
28th Sep 2025266 PMAQI
28th Sep 2025287 PMAQI
28th Sep 2025358 PMAQI
28th Sep 2025329 PMAQI
28th Sep 20252410 PMAQI
28th Sep 20252011 PMAQI
29th Sep 20251912 AMAQI
29th Sep 2025171 AMAQI
29th Sep 2025282 AMAQI
29th Sep 2025393 AMAQI
29th Sep 2025264 AMAQI
29th Sep 2025205 AMAQI
23°C21/28°C
29th Sep 2025226 AMAQI
29th Sep 2025227 AMAQI
29th Sep 2025148 AMAQI
29th Sep 202579 AMAQI
29th Sep 20251410 AMAQI
29th Sep 20251411 AMAQI
29th Sep 20252412 PMAQI
29th Sep 2025331 PMAQI
29th Sep 2025332 PMAQI
29th Sep 2025323 PMAQI
29th Sep 2025184 PMAQI
29th Sep 2025335 PMAQI
29th Sep 2025256 PMAQI
29th Sep 2025227 PMAQI
29th Sep 2025158 PMAQI
29th Sep 2025149 PMAQI
29th Sep 20251710 PMAQI
29th Sep 20251611 PMAQI
30th Sep 20251612 AMAQI
30th Sep 2025221 AMAQI
30th Sep 2025172 AMAQI
30th Sep 2025153 AMAQI
30th Sep 2025234 AMAQI
30th Sep 2025265 AMAQI
22°C17/27°C
30th Sep 2025226 AMAQI
30th Sep 2025237 AMAQI
30th Sep 2025218 AMAQI
30th Sep 2025219 AMAQI
30th Sep 20253410 AMAQI
30th Sep 20253611 AMAQI
30th Sep 20252912 PMAQI
30th Sep 2025301 PMAQI
30th Sep 2025282 PMAQI
30th Sep 2025303 PMAQI
30th Sep 2025254 PMAQI
30th Sep 2025325 PMAQI
30th Sep 2025216 PMAQI
30th Sep 2025177 PMAQI
30th Sep 2025228 PMAQI
30th Sep 2025229 PMAQI
30th Sep 20252010 PMAQI
30th Sep 20253111 PMAQI
1st Oct 20252612 AMAQI
1st Oct 2025271 AMAQI
1st Oct 2025352 AMAQI
1st Oct 2025373 AMAQI
1st Oct 2025284 AMAQI
1st Oct 2025195 AMAQI
20°C17/26°C
1st Oct 2025276 AMAQI
1st Oct 2025277 AMAQI
1st Oct 2025308 AMAQI
1st Oct 2025289 AMAQI
1st Oct 20252810 AMAQI
1st Oct 20253211 AMAQI
1st Oct 20252412 PMAQI
1st Oct 2025311 PMAQI
1st Oct 2025342 PMAQI
1st Oct 2025383 PMAQI
1st Oct 2025394 PMAQI
1st Oct 2025385 PMAQI
1st Oct 2025406 PMAQI
1st Oct 2025407 PMAQI
1st Oct 2025228 PMAQI
1st Oct 2025319 PMAQI
1st Oct 20252610 PMAQI
1st Oct 20254211 PMAQI
2nd Oct 20254312 AMAQI
2nd Oct 2025501 AMAQI
2nd Oct 2025442 AMAQI
2nd Oct 2025493 AMAQI
2nd Oct 2025514 AMAQI
2nd Oct 2025445 AMAQI
21°C18/27°C
2nd Oct 2025406 AMAQI
2nd Oct 2025367 AMAQI
2nd Oct 2025328 AMAQI
2nd Oct 2025329 AMAQI
2nd Oct 20253310 AMAQI
2nd Oct 20253711 AMAQI
2nd Oct 20254012 PMAQI
2nd Oct 2025341 PMAQI
2nd Oct 2025482 PMAQI
2nd Oct 2025443 PMAQI
2nd Oct 2025394 PMAQI
2nd Oct 2025495 PMAQI
2nd Oct 2025526 PMAQI
2nd Oct 2025557 PMAQI
2nd Oct 2025478 PMAQI
2nd Oct 2025549 PMAQI
2nd Oct 20254810 PMAQI
2nd Oct 20254511 PMAQI
3rd Oct 20254412 AMAQI
3rd Oct 2025371 AMAQI
3rd Oct 2025322 AMAQI
3rd Oct 2025303 AMAQI
3rd Oct 2025284 AMAQI
3rd Oct 2025325 AMAQI
20°C15/26°C
3rd Oct 2025386 AMAQI
3rd Oct 2025477 AMAQI
3rd Oct 2025478 AMAQI
3rd Oct 2025439 AMAQI
3rd Oct 20253910 AMAQI
3rd Oct 20254611 AMAQI
3rd Oct 20255012 PMAQI
3rd Oct 2025551 PMAQI
3rd Oct 2025532 PMAQI
3rd Oct 2025543 PMAQI
3rd Oct 2025534 PMAQI
3rd Oct 2025565 PMAQI
3rd Oct 2025556 PMAQI
3rd Oct 2025577 PMAQI
3rd Oct 2025478 PMAQI
3rd Oct 2025649 PMAQI
3rd Oct 20257410 PMAQI
3rd Oct 20257311 PMAQI
4th Oct 20257112 AMAQI
4th Oct 2025711 AMAQI
4th Oct 2025692 AMAQI
4th Oct 2025713 AMAQI
4th Oct 2025714 AMAQI
4th Oct 2025705 AMAQI
19°C17/20°C
4th Oct 2025556 AMAQI
4th Oct 2025597 AMAQI
4th Oct 2025568 AMAQI
4th Oct 2025529 AMAQI
4th Oct 20256310 AMAQI
4th Oct 20256411 AMAQI
4th Oct 20256212 PMAQI
4th Oct 2025651 PMAQI
4th Oct 2025612 PMAQI
4th Oct 2025463 PMAQI
4th Oct 2025674 PMAQI
4th Oct 2025765 PMAQI
4th Oct 2025796 PMAQI
4th Oct 2025707 PMAQI
4th Oct 2025668 PMAQI
4th Oct 2025629 PMAQI
4th Oct 20256110 PMAQI
4th Oct 20256211 PMAQI
5th Oct 20256212 AMAQI
5th Oct 2025631 AMAQI
5th Oct 2025642 AMAQI
5th Oct 2025613 AMAQI
5th Oct 2025574 AMAQI
5th Oct 2025565 AMAQI
24°C20/30°C
5th Oct 2025586 AMAQI
5th Oct 2025567 AMAQI
5th Oct 2025538 AMAQI
5th Oct 2025569 AMAQI
5th Oct 20255710 AMAQI
5th Oct 20255811 AMAQI
5th Oct 20255512 PMAQI
5th Oct 2025511 PMAQI
5th Oct 2025502 PMAQI
5th Oct 2025543 PMAQI
5th Oct 2025524 PMAQI
5th Oct 2025565 PMAQI
5th Oct 2025576 PMAQI
5th Oct 2025567 PMAQI
5th Oct 2025548 PMAQI
5th Oct 2025549 PMAQI
5th Oct 20255610 PMAQI
5th Oct 20255511 PMAQI
6th Oct 20255812 AMAQI
6th Oct 2025611 AMAQI
6th Oct 2025512 AMAQI
6th Oct 2025523 AMAQI
6th Oct 2025614 AMAQI
6th Oct 2025635 AMAQI
24°C21/30°C
6th Oct 2025536 AMAQI
6th Oct 2025517 AMAQI
6th Oct 2025568 AMAQI
6th Oct 2025599 AMAQI
6th Oct 20256110 AMAQI
6th Oct 20255411 AMAQI
6th Oct 20255312 PMAQI
6th Oct 2025541 PMAQI
6th Oct 2025522 PMAQI
6th Oct 2025483 PMAQI
6th Oct 2025494 PMAQI
6th Oct 2025525 PMAQI
6th Oct 2025556 PMAQI
6th Oct 2025647 PMAQI
6th Oct 2025718 PMAQI
6th Oct 2025709 PMAQI
6th Oct 20256610 PMAQI
6th Oct 20256311 PMAQI
7th Oct 20256212 AMAQI
7th Oct 2025611 AMAQI
7th Oct 2025582 AMAQI
23°C20/28°C
7th Oct 2025488 PMAQI
7th Oct 2025469 PMAQI
7th Oct 20256110 PMAQI
7th Oct 20256311 PMAQI
8th Oct 20255812 AMAQI
8th Oct 2025561 AMAQI
8th Oct 2025502 AMAQI
8th Oct 2025543 AMAQI
8th Oct 2025544 AMAQI
8th Oct 2025655 AMAQI
24°C20/29°C
8th Oct 2025536 AMAQI
8th Oct 2025507 AMAQI
8th Oct 2025498 AMAQI
8th Oct 2025589 AMAQI
8th Oct 20255110 AMAQI
8th Oct 20255811 AMAQI
8th Oct 20255912 PMAQI
8th Oct 2025571 PMAQI
8th Oct 2025572 PMAQI
8th Oct 2025573 PMAQI
8th Oct 2025584 PMAQI
8th Oct 2025595 PMAQI
8th Oct 2025606 PMAQI
8th Oct 2025617 PMAQI
8th Oct 2025618 PMAQI
8th Oct 2025619 PMAQI
8th Oct 20257510 PMAQI
8th Oct 20257611 PMAQI
9th Oct 20255412 AMAQI
9th Oct 2025551 AMAQI
9th Oct 2025542 AMAQI
9th Oct 2025533 AMAQI
9th Oct 2025554 AMAQI
9th Oct 2025555 AMAQI
23°C21/28°C
9th Oct 2025586 AMAQI
9th Oct 2025547 AMAQI
9th Oct 2025478 AMAQI
9th Oct 2025489 AMAQI
9th Oct 20255710 AMAQI
9th Oct 20255811 AMAQI
9th Oct 20254212 PMAQI
9th Oct 2025411 PMAQI
9th Oct 2025402 PMAQI
9th Oct 2025423 PMAQI
9th Oct 2025514 PMAQI
9th Oct 2025485 PMAQI
9th Oct 2025526 PMAQI
9th Oct 2025417 PMAQI
9th Oct 2025498 PMAQI
9th Oct 2025569 PMAQI
9th Oct 20254810 PMAQI
9th Oct 20254811 PMAQI
10th Oct 20255512 AMAQI
10th Oct 2025551 AMAQI
10th Oct 2025552 AMAQI
10th Oct 2025543 AMAQI
10th Oct 2025564 AMAQI
10th Oct 2025535 AMAQI
21°C18/26°C
10th Oct 2025496 AMAQI
10th Oct 2025537 AMAQI
10th Oct 2025488 AMAQI
10th Oct 2025489 AMAQI
10th Oct 20254510 AMAQI
10th Oct 20255311 AMAQI
10th Oct 20255012 PMAQI
10th Oct 2025571 PMAQI
10th Oct 2025582 PMAQI
10th Oct 2025573 PMAQI
10th Oct 2025544 PMAQI
10th Oct 2025545 PMAQI
10th Oct 2025586 PMAQI
10th Oct 2025507 PMAQI
10th Oct 2025458 PMAQI
10th Oct 2025449 PMAQI
10th Oct 20255710 PMAQI
10th Oct 20256211 PMAQI
11th Oct 20255912 AMAQI
11th Oct 2025591 AMAQI
11th Oct 2025602 AMAQI
11th Oct 2025493 AMAQI
11th Oct 2025614 AMAQI
11th Oct 2025665 AMAQI
20°C17/24°C
11th Oct 2025656 AMAQI
11th Oct 2025627 AMAQI
11th Oct 2025558 AMAQI
11th Oct 2025589 AMAQI
11th Oct 20256210 AMAQI
11th Oct 20256111 AMAQI
11th Oct 20255912 PMAQI
11th Oct 2025651 PMAQI
11th Oct 2025682 PMAQI
11th Oct 2025713 PMAQI
11th Oct 2025714 PMAQI
11th Oct 2025655 PMAQI
11th Oct 2025646 PMAQI
11th Oct 2025747 PMAQI
11th Oct 2025768 PMAQI
11th Oct 2025769 PMAQI
11th Oct 20258010 PMAQI
11th Oct 20258611 PMAQI
12th Oct 20257612 AMAQI
12th Oct 2025521 AMAQI
12th Oct 2025502 AMAQI
12th Oct 2025613 AMAQI
12th Oct 2025554 AMAQI
12th Oct 2025515 AMAQI
21°C19/25°C
12th Oct 2025546 AMAQI
12th Oct 2025637 AMAQI
12th Oct 2025678 AMAQI
12th Oct 2025749 AMAQI
12th Oct 20257210 AMAQI
12th Oct 20258011 AMAQI
12th Oct 20257412 PMAQI
12th Oct 2025701 PMAQI
12th Oct 2025712 PMAQI
12th Oct 2025703 PMAQI
12th Oct 2025724 PMAQI
12th Oct 2025775 PMAQI
12th Oct 2025676 PMAQI
12th Oct 2025647 PMAQI
12th Oct 2025648 PMAQI
12th Oct 2025709 PMAQI
12th Oct 20256610 PMAQI
12th Oct 20257411 PMAQI
13th Oct 20258112 AMAQI
13th Oct 2025591 AMAQI
13th Oct 2025582 AMAQI
13th Oct 2025443 AMAQI
13th Oct 2025374 AMAQI
13th Oct 2025395 AMAQI
24°C21/28°C
13th Oct 2025586 AMAQI
13th Oct 2025637 AMAQI
13th Oct 2025638 AMAQI
13th Oct 2025629 AMAQI
13th Oct 20256410 AMAQI
13th Oct 20254611 AMAQI
13th Oct 20253812 PMAQI
13th Oct 2025381 PMAQI
13th Oct 2025472 PMAQI
13th Oct 2025453 PMAQI
13th Oct 2025454 PMAQI
13th Oct 2025395 PMAQI
13th Oct 2025396 PMAQI
13th Oct 2025507 PMAQI
13th Oct 2025578 PMAQI
13th Oct 2025599 PMAQI
13th Oct 20255710 PMAQI
13th Oct 20255911 PMAQI
14th Oct 20255112 AMAQI
14th Oct 2025491 AMAQI
14th Oct 2025502 AMAQI
14th Oct 2025543 AMAQI
14th Oct 2025564 AMAQI
14th Oct 2025535 AMAQI
23°C18/29°C
14th Oct 2025626 AMAQI
14th Oct 2025607 AMAQI
14th Oct 2025638 AMAQI
14th Oct 2025639 AMAQI
14th Oct 20255910 AMAQI
14th Oct 20255411 AMAQI
14th Oct 20255112 PMAQI
14th Oct 2025591 PMAQI
14th Oct 2025592 PMAQI
14th Oct 2025503 PMAQI
14th Oct 2025544 PMAQI
14th Oct 2025545 PMAQI
14th Oct 2025556 PMAQI
14th Oct 2025807 PMAQI
14th Oct 2025878 PMAQI
14th Oct 2025929 PMAQI
14th Oct 20259510 PMAQI
14th Oct 20255911 PMAQI
15th Oct 20255712 AMAQI
15th Oct 2025631 AMAQI
15th Oct 2025652 AMAQI
15th Oct 2025713 AMAQI
15th Oct 2025714 AMAQI
15th Oct 2025655 AMAQI
24°C20/30°C
15th Oct 2025606 AMAQI
15th Oct 2025407 AMAQI
15th Oct 2025408 AMAQI
15th Oct 2025429 AMAQI
15th Oct 20255210 AMAQI
15th Oct 20255411 AMAQI
15th Oct 20254712 PMAQI
15th Oct 2025441 PMAQI
15th Oct 2025422 PMAQI
15th Oct 2025453 PMAQI
15th Oct 2025414 PMAQI
15th Oct 2025505 PMAQI
15th Oct 2025516 PMAQI
15th Oct 2025487 PMAQI
15th Oct 2025448 PMAQI
15th Oct 2025479 PMAQI
15th Oct 20254510 PMAQI
15th Oct 20254611 PMAQI
16th Oct 20255412 AMAQI
16th Oct 2025531 AMAQI
16th Oct 2025552 AMAQI
16th Oct 2025593 AMAQI
16th Oct 2025604 AMAQI
16th Oct 2025615 AMAQI
23°C21/26°C
16th Oct 2025616 AMAQI
6 AM16th Oct 2025707 AMAQI
16th Oct 2025738 AMAQI
16th Oct 2025509 AMAQI
16th Oct 20254410 AMAQI
16th Oct 20254211 AMAQI
16th Oct 20255712 PMAQI
12 PM16th Oct 2025591 PMAQI
16th Oct 2025602 PMAQI
16th Oct 2025733 PMAQI
16th Oct 2025634 PMAQI
16th Oct 2025595 PMAQI
16th Oct 2025606 PMAQI
6 PM12 AM
5 AM
--°C/°C
Day time
Avg. Highest Time
5 PM - 6 PM
43AQI
2 hours / Day
60 hours / Month
Avg. Lowest Time
9 AM - 12 PM
39AQI
4 hours / Day
120 hours / Month
In the last 30 days, during the daytime, the highest AQI was between 5 PM to 6 PM (Avg. 43), while the lowest AQI was between 9 AM to 12 PM (Avg. 39).
Night time
Avg. Highest Time
7 PM - 11 PM
44AQI
5 hours / Day
150 hours / Month
Avg. Lowest Time
12 AM - 5 AM
42AQI
6 hours / Day
180 hours / Month
In the last 30 days, during the daytime, the highest AQI was between 7 PM to 11 PM (Avg. 44), while the lowest AQI was between 12 AM to 5 AM (Avg. 42).
2025 Days Vs Air Quality
Hayami District, Hiji, Oita, Japan
2025
78%
225
22%
63
Total number of days with different AQI categories in last 289 days in 2025 (76 days remaining)
Good
225 DaysModerate
63 DaysPoor
0 DaysUnhealthy
0 DaysSevere
0 DaysHazardous
0 DaysUnder WHO’s Safe Air Quality Limits: 78%
Health Risk Level:
Low
In 2025, 78% of 289 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
Hayami District, Hiji, Oita, 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
34AQI
34AQI
3rd January 2025
33AQI
33AQI
4th January 2025
31AQI
31AQI
5th January 2025
34AQI
34AQI
6th January 2025
41AQI
41AQI
7th January 2025
32AQI
32AQI
8th January 2025
38AQI
38AQI
9th January 2025
28AQI
28AQI
10th January 2025
31AQI
31AQI
11th January 2025
29AQI
29AQI
12th January 2025
35AQI
35AQI
13th January 2025
40AQI
40AQI
14th January 2025
40AQI
40AQI
15th January 2025
42AQI
42AQI
16th January 2025
36AQI
36AQI
17th January 2025
41AQI
41AQI
18th January 2025
37AQI
37AQI
19th January 2025
41AQI
41AQI
20th January 2025
41AQI
41AQI
21st January 2025
59AQI
59AQI
22nd January 2025
65AQI
65AQI
23rd January 2025
74AQI
74AQI
24th January 2025
73AQI
73AQI
25th January 2025
46AQI
46AQI
26th January 2025
45AQI
45AQI
27th January 2025
35AQI
35AQI
28th January 2025
37AQI
37AQI
29th January 2025
32AQI
32AQI
30th January 2025
34AQI
34AQI
31st January 2025
42AQI
42AQI
1st February 2025
49AQI
49AQI
2nd February 2025
35AQI
35AQI
3rd February 2025
44AQI
44AQI
4th February 2025
31AQI
31AQI
5th February 2025
36AQI
36AQI
6th February 2025
30AQI
30AQI
7th February 2025
32AQI
32AQI
8th February 2025
30AQI
30AQI
9th February 2025
29AQI
29AQI
10th February 2025
31AQI
31AQI
11th February 2025
36AQI
36AQI
12th February 2025
31AQI
31AQI
13th February 2025
31AQI
31AQI
14th February 2025
36AQI
36AQI
15th February 2025
32AQI
32AQI
16th February 2025
39AQI
39AQI
17th February 2025
38AQI
38AQI
18th February 2025
35AQI
35AQI
19th February 2025
35AQI
35AQI
20th February 2025
33AQI
33AQI
21st February 2025
34AQI
34AQI
22nd February 2025
36AQI
36AQI
23rd February 2025
36AQI
36AQI
24th February 2025
35AQI
35AQI
25th February 2025
36AQI
36AQI
26th February 2025
43AQI
43AQI
27th February 2025
62AQI
62AQI
28th February 2025
55AQI
55AQI
1st March 2025
81AQI
81AQI
2nd March 2025
68AQI
68AQI
3rd March 2025
48AQI
48AQI
4th March 2025
39AQI
39AQI
5th March 2025
35AQI
35AQI
6th March 2025
37AQI
37AQI
7th March 2025
33AQI
33AQI
8th March 2025
39AQI
39AQI
9th March 2025
40AQI
40AQI
10th March 2025
44AQI
44AQI
11th March 2025
44AQI
44AQI
12th March 2025
47AQI
47AQI
13th March 2025
51AQI
51AQI
14th March 2025
36AQI
36AQI
15th March 2025
35AQI
35AQI
16th March 2025
23AQI
23AQI
17th March 2025
41AQI
41AQI
18th March 2025
34AQI
34AQI
19th March 2025
37AQI
37AQI
20th March 2025
43AQI
43AQI
21st March 2025
52AQI
52AQI
22nd March 2025
56AQI
56AQI
23rd March 2025
59AQI
59AQI
24th March 2025
51AQI
51AQI
25th March 2025
70AQI
70AQI
26th March 2025
66AQI
66AQI
27th March 2025
61AQI
61AQI
28th March 2025
60AQI
60AQI
29th March 2025
52AQI
52AQI
30th March 2025
41AQI
41AQI
31st March 2025
34AQI
34AQI
1st April 2025
39AQI
39AQI
2nd April 2025
35AQI
35AQI
3rd April 2025
31AQI
31AQI
4th April 2025
31AQI
31AQI
5th April 2025
41AQI
41AQI
6th April 2025
41AQI
41AQI
7th April 2025
37AQI
37AQI
8th April 2025
34AQI
34AQI
9th April 2025
52AQI
52AQI
10th April 2025
50AQI
50AQI
11th April 2025
52AQI
52AQI
12th April 2025
53AQI
53AQI
13th April 2025
43AQI
43AQI
14th April 2025
48AQI
48AQI
15th April 2025
29AQI
29AQI
16th April 2025
42AQI
42AQI
17th April 2025
43AQI
43AQI
18th April 2025
53AQI
53AQI
19th April 2025
54AQI
54AQI
20th April 2025
45AQI
45AQI
21st April 2025
44AQI
44AQI
22nd April 2025
36AQI
36AQI
23rd April 2025
28AQI
28AQI
24th April 2025
37AQI
37AQI
25th April 2025
53AQI
53AQI
26th April 2025
46AQI
46AQI
27th April 2025
55AQI
55AQI
28th April 2025
41AQI
41AQI
29th April 2025
46AQI
46AQI
30th April 2025
47AQI
47AQI
1st May 2025
46AQI
46AQI
2nd May 2025
38AQI
38AQI
3rd May 2025
41AQI
41AQI
4th May 2025
36AQI
36AQI
5th May 2025
37AQI
37AQI
6th May 2025
31AQI
31AQI
7th May 2025
31AQI
31AQI
8th May 2025
36AQI
36AQI
9th May 2025
30AQI
30AQI
10th May 2025
34AQI
34AQI
11th May 2025
33AQI
33AQI
12th May 2025
48AQI
48AQI
13th May 2025
53AQI
53AQI
14th May 2025
57AQI
57AQI
15th May 2025
55AQI
55AQI
16th May 2025
51AQI
51AQI
17th May 2025
38AQI
38AQI
18th May 2025
48AQI
48AQI
19th May 2025
54AQI
54AQI
20th May 2025
57AQI
57AQI
21st May 2025
37AQI
37AQI
22nd May 2025
44AQI
44AQI
23rd May 2025
40AQI
40AQI
24th May 2025
32AQI
32AQI
25th May 2025
29AQI
29AQI
26th May 2025
31AQI
31AQI
27th May 2025
36AQI
36AQI
28th May 2025
42AQI
42AQI
29th May 2025
38AQI
38AQI
30th May 2025
35AQI
35AQI
31st May 2025
37AQI
37AQI
1st June 2025
45AQI
45AQI
2nd June 2025
49AQI
49AQI
3rd June 2025
29AQI
29AQI
4th June 2025
41AQI
41AQI
5th June 2025
35AQI
35AQI
6th June 2025
54AQI
54AQI
7th June 2025
55AQI
55AQI
8th June 2025
61AQI
61AQI
9th June 2025
37AQI
37AQI
10th June 2025
35AQI
35AQI
11th June 2025
46AQI
46AQI
12th June 2025
44AQI
44AQI
13th June 2025
43AQI
43AQI
14th June 2025
34AQI
34AQI
15th June 2025
32AQI
32AQI
16th June 2025
29AQI
29AQI
17th June 2025
37AQI
37AQI
18th June 2025
39AQI
39AQI
19th June 2025
42AQI
42AQI
20th June 2025
50AQI
50AQI
21st June 2025
55AQI
55AQI
22nd June 2025
69AQI
69AQI
23rd June 2025
45AQI
45AQI
24th June 2025
45AQI
45AQI
25th June 2025
46AQI
46AQI
26th June 2025
46AQI
46AQI
27th June 2025
52AQI
52AQI
28th June 2025
48AQI
48AQI
29th June 2025
48AQI
48AQI
30th June 2025
54AQI
54AQI
1st July 2025
58AQI
58AQI
2nd July 2025
73AQI
73AQI
3rd July 2025
89AQI
89AQI
4th July 2025
94AQI
94AQI
5th July 2025
90AQI
90AQI
6th July 2025
70AQI
70AQI
7th July 2025
61AQI
61AQI
8th July 2025
68AQI
68AQI
9th July 2025
75AQI
75AQI
10th July 2025
76AQI
76AQI
11th July 2025
49AQI
49AQI
12th July 2025
49AQI
49AQI
13th July 2025
41AQI
41AQI
14th July 2025
39AQI
39AQI
15th July 2025
51AQI
51AQI
16th July 2025
53AQI
53AQI
17th July 2025
40AQI
40AQI
18th July 2025
36AQI
36AQI
19th July 2025
34AQI
34AQI
20th July 2025
32AQI
32AQI
21st July 2025
30AQI
30AQI
22nd July 2025
29AQI
29AQI
23rd July 2025
28AQI
28AQI
24th July 2025
25AQI
25AQI
25th July 2025
24AQI
24AQI
26th July 2025
23AQI
23AQI
27th July 2025
22AQI
22AQI
28th July 2025
27AQI
27AQI
29th July 2025
25AQI
25AQI
30th July 2025
26AQI
26AQI
31st July 2025
30AQI
30AQI
1st August 2025
42AQI
42AQI
2nd August 2025
47AQI
47AQI
3rd August 2025
48AQI
48AQI
4th August 2025
48AQI
48AQI
5th August 2025
48AQI
48AQI
6th August 2025
47AQI
47AQI
7th August 2025
43AQI
43AQI
8th August 2025
41AQI
41AQI
9th August 2025
37AQI
37AQI
10th August 2025
36AQI
36AQI
11th August 2025
31AQI
31AQI
12th August 2025
37AQI
37AQI
13th August 2025
41AQI
41AQI
14th August 2025
42AQI
42AQI
15th August 2025
43AQI
43AQI
16th August 2025
41AQI
41AQI
17th August 2025
43AQI
43AQI
18th August 2025
46AQI
46AQI
19th August 2025
52AQI
52AQI
20th August 2025
46AQI
46AQI
21st August 2025
42AQI
42AQI
22nd August 2025
43AQI
43AQI
23rd August 2025
45AQI
45AQI
24th August 2025
43AQI
43AQI
25th August 2025
44AQI
44AQI
26th August 2025
44AQI
44AQI
27th August 2025
43AQI
43AQI
28th August 2025
45AQI
45AQI
29th August 2025
50AQI
50AQI
30th August 2025
52AQI
52AQI
31st August 2025
48AQI
48AQI
1st September 2025
40AQI
40AQI
2nd September 2025
37AQI
37AQI
3rd September 2025
38AQI
38AQI
4th September 2025
29AQI
29AQI
5th September 2025
27AQI
27AQI
6th September 2025
31AQI
31AQI
7th September 2025
37AQI
37AQI
8th September 2025
33AQI
33AQI
9th September 2025
34AQI
34AQI
10th September 2025
31AQI
31AQI
11th September 2025
33AQI
33AQI
12th September 2025
31AQI
31AQI
13th September 2025
32AQI
32AQI
14th September 2025
28AQI
28AQI
15th September 2025
33AQI
33AQI
16th September 2025
44AQI
44AQI
17th September 2025
41AQI
41AQI
18th September 2025
28AQI
28AQI
19th September 2025
26AQI
26AQI
20th September 2025
33AQI
33AQI
21st September 2025
25AQI
25AQI
22nd September 2025
25AQI
25AQI
23rd September 2025
27AQI
27AQI
24th September 2025
24AQI
24AQI
25th September 2025
26AQI
26AQI
26th September 2025
30AQI
30AQI
27th September 2025
26AQI
26AQI
28th September 2025
27AQI
27AQI
29th September 2025
22AQI
22AQI
30th September 2025
24AQI
24AQI
1st October 2025
31AQI
31AQI
2nd October 2025
45AQI
45AQI
3rd October 2025
48AQI
48AQI
4th October 2025
65AQI
65AQI
5th October 2025
57AQI
57AQI
6th October 2025
60AQI
60AQI
7th October 2025
57AQI
57AQI
8th October 2025
59AQI
59AQI
9th October 2025
50AQI
50AQI
10th October 2025
53AQI
53AQI
11th October 2025
66AQI
66AQI
12th October 2025
66AQI
66AQI
13th October 2025
52AQI
52AQI
14th October 2025
62AQI
62AQI
15th October 2025
55AQI
55AQI
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
41AQI
37AQI
47AQI
43AQI
40AQI
45AQI
47AQI
44AQI
31AQI
55AQI
No. of days
Jan.Feb.Mar.Apr.MayJun.Jul.Aug.Sep.Oct.Nov.Dec.Total Days
202542AQI
27
4
26
2
19
12
23
7
25
6
23
7
19
12
29
2
30
4
11
225
63
Highest AQI recorded in
October55AQI
Lowest AQI recorded in
September31AQI
202436AQI
28
3
26
3
29
2
27
3
28
3
29
1
29
2
28
3
25
5
31
27
3
31
338
28
Highest AQI recorded in
April44AQI
Lowest AQI recorded in
December32AQI
202340AQI
26
5
28
25
6
20
10
24
7
24
6
26
4
31
26
4
26
5
25
4
26
5
307
56
Highest AQI recorded in
April47AQI
Lowest AQI recorded in
August29AQI
202238AQI
28
3
19
2
24
7
25
5
22
9
24
6
23
1
2
28
1
28
3
27
3
31
281
40
Highest AQI recorded in
May48AQI
Lowest AQI recorded in
December33AQI
202134AQI
30
1
23
5
27
2
20
1
25
6
23
7
29
2
31
29
1
30
1
25
5
31
323
31
Highest AQI recorded in
June41AQI
Lowest AQI recorded in
August28AQI
202034AQI
11
2
19
2
16
2
22
8
29
2
17
12
2
19
28
3
29
1
30
1
220
33
2
Highest AQI recorded in
August52AQI
Lowest AQI recorded in
September25AQI
Most & Least Polluted Years Over the Last 6 Years
Most Polluted Year Recorded
2025(Avg.)
42AQILeast Polluted Year Recorded
2021(Avg.)
34AQIHayami District's annual 2025 AQI (42) shows an average percentage change of 16.2% (worsened AQI) compared to previous years: 2020 (34), 2021 (34), 2022 (38), 2023 (40), 2024 (36).
