Country Background
HistoryAQIPM2.5PM10COSO2NO2O3

Kawaguchi, Kawaguchi, Saitama, 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+

February Air Quality Analysis

Kawaguchi, Kawaguchi, Saitama, Japan

2022
2023
2024
2025
2026
AQI
.
Days

AQI Trends: Highest and Lowest

Highest AQI recorded on
18th Feb 2023
76AQI
Lowest AQI recorded on
22nd Feb 2024
22AQI

Same Day Analysis (5th February):
On this day, AQI across the 5 years varied significantly: 2026 ranks 1st highest AQI at 68 of Moderate air quality on the same day.

Download 2024 Annual Data

World Air Quality Report

Globe

Day & Night AQI Trend: 4th Feb - 5th Feb 2026

Kawaguchi, Kawaguchi, Saitama, Japan

AQI
Day
Night
.

6 AM4th Feb 2026

4 PM

5 AM5th Feb 2026

Day time
Avg. Highest Time
10AM4th Feb

53AQI

Avg. Lowest Time
1PM4th Feb

25AQI

Night time
Avg. Highest Time
4AM5th Feb

73AQI

Avg. Lowest Time
6PM4th Feb

40AQI

In the last 24 hours,

Kawaguchi's AQI reached its highest point of 73 at 4 AM during the Night, while the lowest point, 25, was recorded at 1 PM during the Day between 4th Feb and 5th Feb 2026.

Day & Night AQI Trend : Jan - Feb 2026

Kawaguchi, Kawaguchi, Saitama, Japan

JanFeb
07th - 08th08th - 09th09th - 10th10th - 11th11th - 12th12th - 13th13th - 14th14th - 15th15th - 16th16th - 17th17th - 18th18th - 19th19th - 20th20th - 21st21st - 22nd22nd - 23rd23rd - 24th24th - 25th25th - 26th26th - 27th27th - 28th28th - 29th29th - 30th30th - 31st31st - 01st01st - 02nd02nd - 03rd03rd - 04th04th - 05th05th
Day
Night
7th Jan 2026316 AMAQI
7th Jan 2026277 AMAQI
7th Jan 2026328 AMAQI
7th Jan 2026329 AMAQI
7th Jan 20262510 AMAQI
7th Jan 20263411 AMAQI
7th Jan 20264212 PMAQI
7th Jan 2026381 PMAQI
7th Jan 2026422 PMAQI
7th Jan 2026423 PMAQI
7th Jan 2026384 PMAQI
7th Jan 2026405 PMAQI
7th Jan 2026466 PMAQI
7th Jan 2026557 PMAQI
7th Jan 2026558 PMAQI
7th Jan 2026539 PMAQI
7th Jan 20264810 PMAQI
7th Jan 20264811 PMAQI
8th Jan 20266412 AMAQI
8th Jan 2026661 AMAQI
8th Jan 2026602 AMAQI
8th Jan 2026583 AMAQI
8th Jan 2026624 AMAQI
8th Jan 2026655 AMAQI

5°C5/6°C

8th Jan 2026676 AMAQI
8th Jan 2026607 AMAQI
8th Jan 2026528 AMAQI
8th Jan 2026509 AMAQI
8th Jan 20264510 AMAQI
8th Jan 20264811 AMAQI
8th Jan 20263812 PMAQI
8th Jan 2026381 PMAQI
8th Jan 2026402 PMAQI
8th Jan 2026384 PMAQI
8th Jan 2026255 PMAQI
8th Jan 2026176 PMAQI
8th Jan 2026177 PMAQI
8th Jan 2026108 PMAQI
8th Jan 2026149 PMAQI
8th Jan 20261610 PMAQI
8th Jan 20262111 PMAQI
9th Jan 20262312 AMAQI
9th Jan 2026271 AMAQI
9th Jan 2026272 AMAQI
9th Jan 2026253 AMAQI
9th Jan 2026164 AMAQI
9th Jan 2026215 AMAQI

6°C3/10°C

9th Jan 2026176 AMAQI
9th Jan 2026147 AMAQI
9th Jan 2026108 AMAQI
9th Jan 202669 AMAQI
9th Jan 20261010 AMAQI
9th Jan 20261211 AMAQI
9th Jan 20261012 PMAQI
9th Jan 2026101 PMAQI
9th Jan 202662 PMAQI
9th Jan 202683 PMAQI
9th Jan 2026104 PMAQI
9th Jan 2026165 PMAQI
9th Jan 2026216 PMAQI
9th Jan 2026257 PMAQI
9th Jan 2026258 PMAQI
9th Jan 2026319 PMAQI
9th Jan 20263810 PMAQI
9th Jan 20264411 PMAQI
10th Jan 20264412 AMAQI
10th Jan 2026461 AMAQI
10th Jan 2026492 AMAQI
10th Jan 2026593 AMAQI
10th Jan 2026564 AMAQI
10th Jan 2026535 AMAQI

5°C2/8°C

10th Jan 2026576 AMAQI
10th Jan 2026447 AMAQI
10th Jan 2026368 AMAQI
10th Jan 2026409 AMAQI
10th Jan 20263810 AMAQI
10th Jan 20262811 AMAQI
10th Jan 20261712 PMAQI
10th Jan 2026171 PMAQI
10th Jan 2026362 PMAQI
10th Jan 2026523 PMAQI
10th Jan 2026534 PMAQI
10th Jan 2026505 PMAQI
10th Jan 2026236 PMAQI
10th Jan 2026237 PMAQI
10th Jan 2026388 PMAQI
10th Jan 2026489 PMAQI
10th Jan 20265010 PMAQI
10th Jan 20263811 PMAQI
11th Jan 20263612 AMAQI
11th Jan 2026421 AMAQI
11th Jan 2026422 AMAQI
11th Jan 2026363 AMAQI
11th Jan 2026334 AMAQI
11th Jan 2026335 AMAQI

9°C5/14°C

11th Jan 2026276 AMAQI
11th Jan 2026298 AMAQI
11th Jan 2026469 AMAQI
11th Jan 20263410 AMAQI
11th Jan 20264411 AMAQI
11th Jan 20264412 PMAQI
11th Jan 2026441 PMAQI
11th Jan 2026442 PMAQI
11th Jan 2026463 PMAQI
11th Jan 2026494 PMAQI
11th Jan 2026515 PMAQI
11th Jan 2026506 PMAQI
11th Jan 2026407 PMAQI
11th Jan 2026198 PMAQI
11th Jan 2026219 PMAQI
11th Jan 20262310 PMAQI
11th Jan 20262311 PMAQI
12th Jan 20262312 AMAQI
12th Jan 2026161 AMAQI
12th Jan 2026122 AMAQI
12th Jan 2026123 AMAQI
12th Jan 202684 AMAQI
12th Jan 202685 AMAQI

9°C3/12°C

12th Jan 2026106 AMAQI
12th Jan 202687 AMAQI
12th Jan 202688 AMAQI
12th Jan 2026109 AMAQI
12th Jan 20262710 AMAQI
12th Jan 20262511 AMAQI
12th Jan 20262512 PMAQI
12th Jan 2026141 PMAQI
12th Jan 2026172 PMAQI
12th Jan 2026173 PMAQI
12th Jan 2026184 PMAQI
12th Jan 2026235 PMAQI
12th Jan 2026256 PMAQI
12th Jan 2026257 PMAQI
12th Jan 2026258 PMAQI
12th Jan 2026389 PMAQI
12th Jan 20265010 PMAQI
12th Jan 20265311 PMAQI
13th Jan 20264012 AMAQI
13th Jan 2026421 AMAQI
13th Jan 2026502 AMAQI
13th Jan 2026463 AMAQI
13th Jan 2026444 AMAQI
13th Jan 2026465 AMAQI

5°C2/7°C

13th Jan 2026276 AMAQI
13th Jan 2026277 AMAQI
13th Jan 2026348 AMAQI
13th Jan 2026319 AMAQI
13th Jan 20264010 AMAQI
13th Jan 20264411 AMAQI
13th Jan 20264812 PMAQI
13th Jan 2026441 PMAQI
13th Jan 2026532 PMAQI
13th Jan 2026533 PMAQI
13th Jan 2026484 PMAQI
13th Jan 2026465 PMAQI
13th Jan 2026486 PMAQI
13th Jan 2026507 PMAQI
13th Jan 2026428 PMAQI
13th Jan 2026389 PMAQI
13th Jan 20263810 PMAQI
13th Jan 20264211 PMAQI
14th Jan 20264012 AMAQI
14th Jan 2026321 AMAQI
14th Jan 2026252 AMAQI
14th Jan 2026213 AMAQI
14th Jan 2026214 AMAQI
14th Jan 2026195 AMAQI

9°C4/14°C

14th Jan 2026196 AMAQI
14th Jan 2026177 AMAQI
14th Jan 2026148 AMAQI
14th Jan 2026129 AMAQI
14th Jan 20261710 AMAQI
14th Jan 20261411 AMAQI
14th Jan 20261412 PMAQI
14th Jan 2026141 PMAQI
14th Jan 2026122 PMAQI
14th Jan 2026143 PMAQI
14th Jan 2026124 PMAQI
14th Jan 2026125 PMAQI
14th Jan 2026126 PMAQI
14th Jan 2026127 PMAQI
14th Jan 2026178 PMAQI
14th Jan 2026179 PMAQI
14th Jan 20262110 PMAQI
14th Jan 20262111 PMAQI
15th Jan 20262312 AMAQI
15th Jan 2026211 AMAQI
15th Jan 2026272 AMAQI
15th Jan 2026233 AMAQI
15th Jan 2026214 AMAQI
15th Jan 2026215 AMAQI

8°C6/10°C

15th Jan 2026216 AMAQI
15th Jan 2026277 AMAQI
15th Jan 2026318 AMAQI
15th Jan 2026319 AMAQI
15th Jan 20263610 AMAQI
15th Jan 20264011 AMAQI
15th Jan 20264012 PMAQI
15th Jan 2026361 PMAQI
15th Jan 2026382 PMAQI
15th Jan 2026493 PMAQI
15th Jan 2026554 PMAQI
15th Jan 2026585 PMAQI
15th Jan 2026586 PMAQI
15th Jan 2026667 PMAQI
15th Jan 2026628 PMAQI
15th Jan 2026609 PMAQI
15th Jan 20265410 PMAQI
15th Jan 20264611 PMAQI
16th Jan 20265612 AMAQI
16th Jan 2026671 AMAQI
16th Jan 2026632 AMAQI
16th Jan 2026603 AMAQI
16th Jan 2026624 AMAQI
16th Jan 2026585 AMAQI

8°C5/10°C

16th Jan 2026646 AMAQI
16th Jan 2026697 AMAQI
16th Jan 2026748 AMAQI
16th Jan 2026729 AMAQI
16th Jan 20267810 AMAQI
16th Jan 20267411 AMAQI
16th Jan 20265012 PMAQI
16th Jan 2026521 PMAQI
16th Jan 2026472 PMAQI
16th Jan 2026343 PMAQI
16th Jan 2026364 PMAQI
16th Jan 2026485 PMAQI
16th Jan 2026446 PMAQI
16th Jan 2026407 PMAQI
16th Jan 2026318 PMAQI
16th Jan 2026429 PMAQI
16th Jan 20265210 PMAQI
16th Jan 20265011 PMAQI
17th Jan 20264012 AMAQI
17th Jan 2026361 AMAQI
17th Jan 2026402 AMAQI
17th Jan 2026473 AMAQI
17th Jan 2026474 AMAQI
17th Jan 2026425 AMAQI

11°C7/15°C

17th Jan 2026496 AMAQI
17th Jan 2026587 AMAQI
17th Jan 2026568 AMAQI
17th Jan 2026569 AMAQI
17th Jan 20265110 AMAQI
17th Jan 20265411 AMAQI
17th Jan 20265312 PMAQI
17th Jan 2026461 PMAQI
17th Jan 2026462 PMAQI
17th Jan 2026523 PMAQI
17th Jan 2026604 PMAQI
17th Jan 2026575 PMAQI
17th Jan 2026576 PMAQI
17th Jan 2026707 PMAQI
17th Jan 2026788 PMAQI
17th Jan 2026639 PMAQI
17th Jan 20264710 PMAQI
17th Jan 20265511 PMAQI
18th Jan 20265012 AMAQI
18th Jan 2026291 AMAQI
18th Jan 2026212 AMAQI
18th Jan 2026233 AMAQI
18th Jan 2026194 AMAQI
18th Jan 2026195 AMAQI

10°C7/14°C

18th Jan 2026126 AMAQI
18th Jan 202687 AMAQI
18th Jan 2026108 AMAQI
18th Jan 2026179 AMAQI
18th Jan 20261710 AMAQI
18th Jan 20261011 AMAQI
18th Jan 20261712 PMAQI
18th Jan 2026171 PMAQI
18th Jan 2026403 PMAQI
18th Jan 2026504 PMAQI
18th Jan 2026495 PMAQI
18th Jan 2026446 PMAQI
18th Jan 2026427 PMAQI
18th Jan 2026298 PMAQI
18th Jan 2026279 PMAQI
18th Jan 20262110 PMAQI
18th Jan 20262511 PMAQI
19th Jan 20262912 AMAQI
19th Jan 2026311 AMAQI
19th Jan 2026342 AMAQI
19th Jan 2026403 AMAQI
19th Jan 2026494 AMAQI
19th Jan 2026475 AMAQI

8°C6/10°C

19th Jan 2026426 AMAQI
19th Jan 2026517 AMAQI
19th Jan 2026498 AMAQI
19th Jan 2026539 AMAQI
19th Jan 20265510 AMAQI
19th Jan 20265311 AMAQI
19th Jan 20265012 PMAQI
19th Jan 2026501 PMAQI
19th Jan 2026522 PMAQI
19th Jan 2026493 PMAQI
19th Jan 2026534 PMAQI
19th Jan 2026515 PMAQI
19th Jan 2026566 PMAQI
19th Jan 2026587 PMAQI
19th Jan 2026638 PMAQI
19th Jan 2026699 PMAQI
19th Jan 20267510 PMAQI
19th Jan 20268611 PMAQI
20th Jan 20268512 AMAQI
20th Jan 2026831 AMAQI
20th Jan 2026682 AMAQI
20th Jan 2026723 AMAQI
20th Jan 2026784 AMAQI
20th Jan 2026815 AMAQI

8°C6/9°C

20th Jan 2026736 AMAQI
20th Jan 2026807 AMAQI
20th Jan 2026738 AMAQI
20th Jan 2026769 AMAQI
20th Jan 20266210 AMAQI
20th Jan 20264811 AMAQI
20th Jan 20263612 PMAQI
20th Jan 2026421 PMAQI
20th Jan 2026302 PMAQI
20th Jan 2026213 PMAQI
20th Jan 2026214 PMAQI
20th Jan 2026175 PMAQI
20th Jan 2026156 PMAQI
20th Jan 2026197 PMAQI
20th Jan 2026238 PMAQI
20th Jan 2026219 PMAQI
20th Jan 20261410 PMAQI
20th Jan 20261011 PMAQI
21st Jan 20261912 AMAQI
21st Jan 2026211 AMAQI
21st Jan 2026142 AMAQI
21st Jan 2026123 AMAQI
21st Jan 2026104 AMAQI
21st Jan 2026125 AMAQI

7°C3/12°C

21st Jan 2026126 AMAQI
21st Jan 2026107 AMAQI
21st Jan 202688 AMAQI
21st Jan 202689 AMAQI
21st Jan 20261010 AMAQI
21st Jan 20261212 PMAQI
21st Jan 2026141 PMAQI
21st Jan 2026102 PMAQI
21st Jan 202683 PMAQI
21st Jan 2026104 PMAQI
21st Jan 2026105 PMAQI
21st Jan 2026126 PMAQI
21st Jan 2026217 PMAQI
21st Jan 2026318 PMAQI
21st Jan 2026319 PMAQI
21st Jan 20263810 PMAQI
21st Jan 20264611 PMAQI
22nd Jan 20265012 AMAQI
22nd Jan 2026481 AMAQI
22nd Jan 2026442 AMAQI
22nd Jan 2026253 AMAQI
22nd Jan 2026204 AMAQI
22nd Jan 2026315 AMAQI

4°C2/6°C

22nd Jan 2026296 AMAQI
22nd Jan 2026147 AMAQI
22nd Jan 2026198 AMAQI
22nd Jan 2026259 AMAQI
22nd Jan 20262710 AMAQI
22nd Jan 20261011 AMAQI
22nd Jan 20261212 PMAQI
22nd Jan 2026171 PMAQI
22nd Jan 2026302 PMAQI
22nd Jan 2026623 PMAQI
22nd Jan 202684 PMAQI
22nd Jan 2026245 PMAQI
22nd Jan 2026246 PMAQI
22nd Jan 2026177 PMAQI
22nd Jan 2026318 PMAQI
22nd Jan 2026409 PMAQI
22nd Jan 20263410 PMAQI
22nd Jan 20263011 PMAQI
23rd Jan 20261712 AMAQI
23rd Jan 2026311 AMAQI
23rd Jan 2026382 AMAQI
23rd Jan 2026273 AMAQI
23rd Jan 2026304 AMAQI
23rd Jan 2026465 AMAQI

3°C1/6°C

23rd Jan 2026356 AMAQI
23rd Jan 2026297 AMAQI
23rd Jan 2026428 AMAQI
23rd Jan 2026569 AMAQI
23rd Jan 20265610 AMAQI
23rd Jan 20264411 AMAQI
23rd Jan 20264212 PMAQI
23rd Jan 2026361 PMAQI
23rd Jan 2026172 PMAQI
23rd Jan 2026383 PMAQI
23rd Jan 2026284 PMAQI
23rd Jan 2026485 PMAQI
23rd Jan 2026546 PMAQI
23rd Jan 2026627 PMAQI
23rd Jan 2026488 PMAQI
23rd Jan 2026389 PMAQI
23rd Jan 20265110 PMAQI
23rd Jan 20265011 PMAQI
24th Jan 20264612 AMAQI
24th Jan 2026521 AMAQI
24th Jan 2026482 AMAQI
24th Jan 2026473 AMAQI
24th Jan 2026704 AMAQI
24th Jan 2026625 AMAQI

4°C1/7°C

24th Jan 2026366 AMAQI
24th Jan 2026387 AMAQI
24th Jan 2026388 AMAQI
24th Jan 2026549 AMAQI
24th Jan 20265210 AMAQI
24th Jan 20264411 AMAQI
24th Jan 20262112 PMAQI
24th Jan 2026241 PMAQI
24th Jan 2026342 PMAQI
24th Jan 2026563 PMAQI
24th Jan 2026294 PMAQI
24th Jan 2026255 PMAQI
24th Jan 2026266 PMAQI
24th Jan 2026397 PMAQI
24th Jan 2026428 PMAQI
24th Jan 2026349 PMAQI
24th Jan 20265110 PMAQI
24th Jan 20264411 PMAQI
25th Jan 20263812 AMAQI
25th Jan 2026541 AMAQI
25th Jan 2026852 AMAQI
25th Jan 2026543 AMAQI
25th Jan 2026424 AMAQI
25th Jan 2026665 AMAQI

6°C3/10°C

25th Jan 2026306 AMAQI
25th Jan 2026247 AMAQI
25th Jan 2026188 AMAQI
25th Jan 2026469 AMAQI
25th Jan 20265810 AMAQI
25th Jan 20264811 AMAQI
25th Jan 20266012 PMAQI
25th Jan 2026581 PMAQI
25th Jan 2026712 PMAQI
25th Jan 2026713 PMAQI
25th Jan 2026364 PMAQI
25th Jan 2026375 PMAQI
25th Jan 2026146 PMAQI
25th Jan 2026247 PMAQI
25th Jan 2026498 PMAQI
25th Jan 2026389 PMAQI
25th Jan 20263010 PMAQI
25th Jan 20262911 PMAQI
26th Jan 20262612 AMAQI
26th Jan 2026261 AMAQI
26th Jan 2026342 AMAQI
26th Jan 2026233 AMAQI
26th Jan 2026264 AMAQI
26th Jan 2026565 AMAQI

4°C2/7°C

26th Jan 2026206 AMAQI
26th Jan 2026177 AMAQI
26th Jan 2026188 AMAQI
26th Jan 2026279 AMAQI
26th Jan 20261611 AMAQI
26th Jan 20264112 PMAQI
26th Jan 2026381 PMAQI
26th Jan 2026172 PMAQI
26th Jan 2026123 PMAQI
26th Jan 2026144 PMAQI
26th Jan 2026175 PMAQI
26th Jan 2026176 PMAQI
26th Jan 2026217 PMAQI
26th Jan 2026388 PMAQI
26th Jan 2026369 PMAQI
26th Jan 20264410 PMAQI
26th Jan 20263811 PMAQI
27th Jan 20264212 AMAQI
27th Jan 2026501 AMAQI
27th Jan 2026442 AMAQI
27th Jan 2026513 AMAQI
27th Jan 2026424 AMAQI
27th Jan 2026355 AMAQI

4°C1/7°C

27th Jan 2026326 AMAQI
27th Jan 2026407 AMAQI
27th Jan 2026368 AMAQI
27th Jan 2026369 AMAQI
27th Jan 20264810 AMAQI
27th Jan 20262711 AMAQI
27th Jan 20263312 PMAQI
27th Jan 2026311 PMAQI
27th Jan 2026422 PMAQI
27th Jan 2026383 PMAQI
27th Jan 2026324 PMAQI
27th Jan 2026315 PMAQI
27th Jan 2026346 PMAQI
27th Jan 2026327 PMAQI
27th Jan 2026388 PMAQI
27th Jan 2026569 PMAQI
27th Jan 20265810 PMAQI
27th Jan 20266611 PMAQI
28th Jan 20266812 AMAQI
28th Jan 2026251 AMAQI
28th Jan 202682 AMAQI
28th Jan 2026123 AMAQI
28th Jan 2026254 AMAQI
28th Jan 2026325 AMAQI

6°C3/9°C

28th Jan 2026316 AMAQI
28th Jan 2026257 AMAQI
28th Jan 2026298 AMAQI
28th Jan 2026279 AMAQI
28th Jan 2026810 AMAQI
28th Jan 2026811 AMAQI
28th Jan 2026812 PMAQI
28th Jan 2026141 PMAQI
28th Jan 2026122 PMAQI
28th Jan 2026173 PMAQI
28th Jan 2026124 PMAQI
28th Jan 2026125 PMAQI
28th Jan 2026126 PMAQI
28th Jan 202687 PMAQI
28th Jan 202688 PMAQI
28th Jan 202689 PMAQI
28th Jan 20261210 PMAQI
29th Jan 20261412 AMAQI
29th Jan 2026121 AMAQI
29th Jan 2026252 AMAQI
29th Jan 2026273 AMAQI
29th Jan 2026214 AMAQI
29th Jan 2026255 AMAQI

6°C4/9°C

29th Jan 2026406 AMAQI
29th Jan 2026387 AMAQI
29th Jan 2026428 AMAQI
29th Jan 2026279 AMAQI
29th Jan 20262310 AMAQI
29th Jan 20261911 AMAQI
29th Jan 2026812 PMAQI
29th Jan 2026312 PMAQI
29th Jan 2026213 PMAQI
29th Jan 2026174 PMAQI
29th Jan 2026215 PMAQI
29th Jan 2026256 PMAQI
29th Jan 2026257 PMAQI
29th Jan 2026298 PMAQI
29th Jan 2026129 PMAQI
29th Jan 20263510 PMAQI
29th Jan 20262511 PMAQI
30th Jan 20262512 AMAQI
30th Jan 2026451 AMAQI
30th Jan 2026562 AMAQI
30th Jan 2026443 AMAQI
30th Jan 2026654 AMAQI
30th Jan 2026885 AMAQI

5°C3/8°C

30th Jan 2026486 AMAQI
30th Jan 2026548 AMAQI
30th Jan 2026609 AMAQI
30th Jan 20266010 AMAQI
30th Jan 20265811 AMAQI
30th Jan 2026812 PMAQI
30th Jan 2026261 PMAQI
30th Jan 2026362 PMAQI
30th Jan 2026223 PMAQI
30th Jan 2026124 PMAQI
30th Jan 2026215 PMAQI
30th Jan 2026206 PMAQI
30th Jan 2026207 PMAQI
30th Jan 2026188 PMAQI
30th Jan 2026129 PMAQI
30th Jan 20261910 PMAQI
30th Jan 20263511 PMAQI
31st Jan 20262612 AMAQI
31st Jan 2026361 AMAQI
31st Jan 2026402 AMAQI
31st Jan 2026363 AMAQI
31st Jan 2026444 AMAQI
31st Jan 2026485 AMAQI

4°C2/7°C

31st Jan 2026526 AMAQI
31st Jan 2026457 AMAQI
31st Jan 2026408 AMAQI
31st Jan 2026669 AMAQI
31st Jan 20268410 AMAQI
31st Jan 20263811 AMAQI
31st Jan 20264212 PMAQI
31st Jan 202681 PMAQI
31st Jan 2026382 PMAQI
31st Jan 2026283 PMAQI
31st Jan 2026484 PMAQI
31st Jan 2026305 PMAQI
31st Jan 2026276 PMAQI
31st Jan 2026508 PMAQI
31st Jan 2026349 PMAQI
31st Jan 20262110 PMAQI
31st Jan 20262111 PMAQI
1st Feb 20262812 AMAQI
1st Feb 2026201 AMAQI
1st Feb 2026362 AMAQI
1st Feb 2026353 AMAQI
1st Feb 2026464 AMAQI
1st Feb 2026725 AMAQI

5°C2/8°C

1st Feb 2026406 AMAQI
1st Feb 2026527 AMAQI
1st Feb 2026388 AMAQI
1st Feb 2026689 AMAQI
1st Feb 20268610 AMAQI
1st Feb 20265211 AMAQI
1st Feb 20262112 PMAQI
1st Feb 2026351 PMAQI
1st Feb 2026342 PMAQI
1st Feb 2026403 PMAQI
1st Feb 2026304 PMAQI
1st Feb 2026255 PMAQI
1st Feb 2026316 PMAQI
1st Feb 2026337 PMAQI
1st Feb 2026408 PMAQI
1st Feb 2026339 PMAQI
1st Feb 20264210 PMAQI
1st Feb 20264311 PMAQI
2nd Feb 20264812 AMAQI
2nd Feb 2026441 AMAQI
2nd Feb 2026302 AMAQI
2nd Feb 2026333 AMAQI
2nd Feb 2026684 AMAQI
2nd Feb 2026745 AMAQI

6°C3/9°C

2nd Feb 2026506 AMAQI
2nd Feb 2026667 AMAQI
2nd Feb 2026288 AMAQI
2nd Feb 2026599 AMAQI
2nd Feb 20267410 AMAQI
2nd Feb 20266611 AMAQI
2nd Feb 20265012 PMAQI
2nd Feb 2026491 PMAQI
2nd Feb 2026322 PMAQI
2nd Feb 2026343 PMAQI
2nd Feb 2026534 PMAQI
2nd Feb 2026385 PMAQI
2nd Feb 2026446 PMAQI
2nd Feb 2026407 PMAQI
2nd Feb 2026328 PMAQI
2nd Feb 2026409 PMAQI
2nd Feb 20262910 PMAQI
2nd Feb 20264911 PMAQI
3rd Feb 20264412 AMAQI
3rd Feb 2026281 AMAQI
3rd Feb 2026282 AMAQI
3rd Feb 2026383 AMAQI
3rd Feb 2026404 AMAQI
3rd Feb 2026345 AMAQI

7°C4/9°C

3rd Feb 2026276 AMAQI
3rd Feb 2026347 AMAQI
3rd Feb 2026258 AMAQI
3rd Feb 2026309 AMAQI
3rd Feb 20265210 AMAQI
3rd Feb 20262511 AMAQI
3rd Feb 20262612 PMAQI
3rd Feb 2026121 PMAQI
3rd Feb 2026232 PMAQI
3rd Feb 2026123 PMAQI
3rd Feb 2026275 PMAQI
3rd Feb 2026266 PMAQI
3rd Feb 2026127 PMAQI
3rd Feb 2026368 PMAQI
3rd Feb 2026499 PMAQI
3rd Feb 20261710 PMAQI
3rd Feb 20263011 PMAQI
4th Feb 20262812 AMAQI
4th Feb 2026251 AMAQI
4th Feb 2026382 AMAQI
4th Feb 2026443 AMAQI
4th Feb 2026474 AMAQI
4th Feb 2026515 AMAQI

7°C4/10°C

4th Feb 2026426 AMAQI
4th Feb 2026487 AMAQI
4th Feb 2026508 AMAQI
4th Feb 2026489 AMAQI
4th Feb 20265310 AMAQI
4th Feb 20265311 AMAQI
4th Feb 20262512 PMAQI
4th Feb 2026251 PMAQI
4th Feb 2026272 PMAQI
4th Feb 2026403 PMAQI
4th Feb 2026464 PMAQI
4th Feb 2026405 PMAQI
4th Feb 2026406 PMAQI
4th Feb 2026507 PMAQI
4th Feb 2026698 PMAQI
4th Feb 2026589 PMAQI
4th Feb 20264810 PMAQI
4th Feb 20264711 PMAQI
5th Feb 20266812 AMAQI
5th Feb 2026691 AMAQI
5th Feb 2026632 AMAQI
5th Feb 2026663 AMAQI
5th Feb 2026734 AMAQI
5th Feb 2026695 AMAQI

7°C4/10°C

5th Feb 2026716 AMAQI
6 AM
5th Feb 2026697 AMAQI
5th Feb 2026708 AMAQI
5th Feb 2026669 AMAQI
5th Feb 20266610 AMAQI
5th Feb 20265611 AMAQI
11 AM
5th Feb 20265912 PMAQI
5th Feb 2026701 PMAQI
5th Feb 2026762 PMAQI
5th Feb 2026623 PMAQI
5th Feb 2026564 PMAQI
4 PM
5th Feb 2026485 PMAQI
5th Feb 2026666 PMAQI
5th Feb 2026667 PMAQI
5th Feb 2026718 PMAQI
5th Feb 2026769 PMAQI
5th Feb 20268510 PMAQI
5th Feb 20268811 PMAQI
11 PM
5 AM

9°C6/12°C

Day time
Avg. Highest Time
10 AM

45AQI

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

32AQI

2 hours / Day
60 hours / Month
In the last 30 days, during the daytime, the highest AQI was between 10 AM to 10 AM (Avg. 45), while the lowest AQI was between 12 PM to 1 PM (Avg. 32).
Night time
Avg. Highest Time
5 AM

45AQI

1 hours / Day
30 hours / Month
Avg. Lowest Time
5 PM - 6 PM

33AQI

2 hours / Day
60 hours / Month
In the last 30 days, during the daytime, the highest AQI was between 5 AM to 5 AM (Avg. 45), while the lowest AQI was between 5 PM to 6 PM (Avg. 33).

2026 Days Vs Air Quality

Kawaguchi, Kawaguchi, Saitama, Japan

2026

89%

32

11%

4

Total number of days with different AQI categories in last 37 days in 2026 (328 days remaining)

Good
32 Days
Moderate
4 Days
Poor
0 Days
Unhealthy
0 Days
Severe
0 Days
Hazardous
0 Days

Under WHO’s Safe Air Quality Limits: 89%

Health Risk Level:

Low

In 2026, 89% of 37 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

Kawaguchi, Kawaguchi, Saitama, Japan

AQI levels in 2026

AQI (US)
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 2026
-1th undefined 2026
-1th undefined 2026
-1th undefined 2026
1st January 2026
26AQI (US)
2nd January 2026
22AQI (US)
3rd January 2026
21AQI (US)
4th January 2026
29AQI (US)
5th January 2026
50AQI (US)
6th January 2026
12AQI (US)
7th January 2026
37AQI (US)
8th January 2026
42AQI (US)
9th January 2026
19AQI (US)
10th January 2026
41AQI (US)
11th January 2026
37AQI (US)
12th January 2026
21AQI (US)
13th January 2026
43AQI (US)
14th January 2026
18AQI (US)
15th January 2026
39AQI (US)
16th January 2026
55AQI (US)
17th January 2026
52AQI (US)
18th January 2026
26AQI (US)
19th January 2026
52AQI (US)
20th January 2026
48AQI (US)
21st January 2026
16AQI (US)
22nd January 2026
28AQI (US)
23rd January 2026
40AQI (US)
24th January 2026
42AQI (US)
25th January 2026
45AQI (US)
26th January 2026
27AQI (US)
27th January 2026
41AQI (US)
28th January 2026
18AQI (US)
29th January 2026
24AQI (US)
30th January 2026
37AQI (US)
31st January 2026
39AQI (US)
1st February 2026
41AQI (US)
2nd February 2026
47AQI (US)
3rd February 2026
29AQI (US)
4th February 2026
43AQI (US)
5th February 2026
68AQI (US)
6th February 2026
7th February 2026
8th February 2026
9th February 2026
10th February 2026
11th February 2026
12th February 2026
13th February 2026
14th February 2026
15th February 2026
16th February 2026
17th February 2026
18th February 2026
19th February 2026
20th February 2026
21st February 2026
22nd February 2026
23rd February 2026
24th February 2026
25th February 2026
26th February 2026
27th February 2026
28th February 2026
1st March 2026
2nd March 2026
3rd March 2026
4th March 2026
5th March 2026
6th March 2026
7th March 2026
8th March 2026
9th March 2026
10th March 2026
11th March 2026
12th March 2026
13th March 2026
14th March 2026
15th March 2026
16th March 2026
17th March 2026
18th March 2026
19th March 2026
20th March 2026
21st March 2026
22nd March 2026
23rd March 2026
24th March 2026
25th March 2026
26th March 2026
27th March 2026
28th March 2026
29th March 2026
30th March 2026
31st March 2026
1st April 2026
2nd April 2026
3rd April 2026
4th April 2026
5th April 2026
6th April 2026
7th April 2026
8th April 2026
9th April 2026
10th April 2026
11th April 2026
12th April 2026
13th April 2026
14th April 2026
15th April 2026
16th April 2026
17th April 2026
18th April 2026
19th April 2026
20th April 2026
21st April 2026
22nd April 2026
23rd April 2026
24th April 2026
25th April 2026
26th April 2026
27th April 2026
28th April 2026
29th April 2026
30th April 2026
1st May 2026
2nd May 2026
3rd May 2026
4th May 2026
5th May 2026
6th May 2026
7th May 2026
8th May 2026
9th May 2026
10th May 2026
11th May 2026
12th May 2026
13th May 2026
14th May 2026
15th May 2026
16th May 2026
17th May 2026
18th May 2026
19th May 2026
20th May 2026
21st May 2026
22nd May 2026
23rd May 2026
24th May 2026
25th May 2026
26th May 2026
27th May 2026
28th May 2026
29th May 2026
30th May 2026
31st May 2026
1st June 2026
2nd June 2026
3rd June 2026
4th June 2026
5th June 2026
6th June 2026
7th June 2026
8th June 2026
9th June 2026
10th June 2026
11th June 2026
12th June 2026
13th June 2026
14th June 2026
15th June 2026
16th June 2026
17th June 2026
18th June 2026
19th June 2026
20th June 2026
21st June 2026
22nd June 2026
23rd June 2026
24th June 2026
25th June 2026
26th June 2026
27th June 2026
28th June 2026
29th June 2026
30th June 2026
1st July 2026
2nd July 2026
3rd July 2026
4th July 2026
5th July 2026
6th July 2026
7th July 2026
8th July 2026
9th July 2026
10th July 2026
11th July 2026
12th July 2026
13th July 2026
14th July 2026
15th July 2026
16th July 2026
17th July 2026
18th July 2026
19th July 2026
20th July 2026
21st July 2026
22nd July 2026
23rd July 2026
24th July 2026
25th July 2026
26th July 2026
27th July 2026
28th July 2026
29th July 2026
30th July 2026
31st July 2026
1st August 2026
2nd August 2026
3rd August 2026
4th August 2026
5th August 2026
6th August 2026
7th August 2026
8th August 2026
9th August 2026
10th August 2026
11th August 2026
12th August 2026
13th August 2026
14th August 2026
15th August 2026
16th August 2026
17th August 2026
18th August 2026
19th August 2026
20th August 2026
21st August 2026
22nd August 2026
23rd August 2026
24th August 2026
25th August 2026
26th August 2026
27th August 2026
28th August 2026
29th August 2026
30th August 2026
31st August 2026
1st September 2026
2nd September 2026
3rd September 2026
4th September 2026
5th September 2026
6th September 2026
7th September 2026
8th September 2026
9th September 2026
10th September 2026
11th September 2026
12th September 2026
13th September 2026
14th September 2026
15th September 2026
16th September 2026
17th September 2026
18th September 2026
19th September 2026
20th September 2026
21st September 2026
22nd September 2026
23rd September 2026
24th September 2026
25th September 2026
26th September 2026
27th September 2026
28th September 2026
29th September 2026
30th September 2026
1st October 2026
2nd October 2026
3rd October 2026
4th October 2026
5th October 2026
6th October 2026
7th October 2026
8th October 2026
9th October 2026
10th October 2026
11th October 2026
12th October 2026
13th October 2026
14th October 2026
15th October 2026
16th October 2026
17th October 2026
18th October 2026
19th October 2026
20th October 2026
21st October 2026
22nd October 2026
23rd October 2026
24th October 2026
25th October 2026
26th October 2026
27th October 2026
28th October 2026
29th October 2026
30th October 2026
31st October 2026
1st November 2026
2nd November 2026
3rd November 2026
4th November 2026
5th November 2026
6th November 2026
7th November 2026
8th November 2026
9th November 2026
10th November 2026
11th November 2026
12th November 2026
13th November 2026
14th November 2026
15th November 2026
16th November 2026
17th November 2026
18th November 2026
19th November 2026
20th November 2026
21st November 2026
22nd November 2026
23rd November 2026
24th November 2026
25th November 2026
26th November 2026
27th November 2026
28th November 2026
29th November 2026
30th November 2026
1st December 2026
2nd December 2026
3rd December 2026
4th December 2026
5th December 2026
6th December 2026
7th December 2026
8th December 2026
9th December 2026
10th December 2026
11th December 2026
12th December 2026
13th December 2026
14th December 2026
15th December 2026
16th December 2026
17th December 2026
18th December 2026
19th December 2026
20th December 2026
21st December 2026
22nd December 2026
23rd December 2026
24th December 2026
25th December 2026
26th December 2026
27th December 2026
28th December 2026
29th December 2026
30th December 2026
31st December 2026

34AQI (US)

46AQI (US)

No. of days

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

202635AQI (US)

28
3
4
1
32
4

Highest AQI (US) recorded in

February

46AQI (US)

Lowest AQI (US) recorded in

January

34AQI (US)

202544AQI (US)

27
4
27
1
22
9
25
5
29
2
28
2
23
8
19
12
27
3
14
17
9
21
11
19
1
261
103
1

Highest AQI (US) recorded in

December

55AQI (US)

Lowest AQI (US) recorded in

February

35AQI (US)

202441AQI (US)

22
9
26
3
23
8
17
13
26
5
24
6
14
17
29
2
27
3
27
4
24
6
28
3
287
79

Highest AQI (US) recorded in

July

53AQI (US)

Lowest AQI (US) recorded in

September

33AQI (US)

202344AQI (US)

21
10
18
10
15
16
16
14
23
8
19
11
22
9
29
2
29
1
27
4
18
11
18
13
255
109

Highest AQI (US) recorded in

April

52AQI (US)

Lowest AQI (US) recorded in

August

29AQI (US)

202243AQI (US)

25
6
13
8
17
14
17
13
22
9
20
10
19
5
1
28
25
6
17
13
25
6
229
90

Highest AQI (US) recorded in

March

50AQI (US)

Lowest AQI (US) recorded in

August

25AQI (US)

202139AQI (US)

21
10
23
5
22
8
1
26
4
24
7
27
3
27
3
1
26
5
26
4
26
5
18
12
18
13
284
79
2

Highest AQI (US) recorded in

December

47AQI (US)

Lowest AQI (US) recorded in

February

29AQI (US)

202037AQI (US)

9
4
17
4
17
1
21
9
31
22
9
19
28
3
17
13
20
11
201
54

Highest AQI (US) recorded in

November

44AQI (US)

Lowest AQI (US) recorded in

July

28AQI (US)

Most & Least Polluted Years Over the Last 7 Years

Most Polluted Year Recorded
2025(Avg.)
44AQI (US)
Least Polluted Year Recorded
2026(Avg.)
35AQI (US)

Kawaguchi's annual 2026 AQI (US) (35) shows an average percentage change of -13.9% (improved AQI (US)) compared to previous years: 2020 (37), 2021 (39), 2022 (43), 2023 (44), 2024 (41), 2025 (44).