Kitchener, Waterloo, Ontario, Canada 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+
July Air Quality Analysis
Kitchener, Waterloo, Ontario, Canada
2022
2023
2024
2025
2026
AQI
.
Days
AQI Trends: Highest and Lowest
Highest AQI recorded on
17th Jul 2026
220AQILowest AQI recorded on
1st Jul 2024
18AQISame Day Analysis (28th July):
On this day, AQI across the 5 years varied significantly: 2026 ranks 3rd highest AQI at 52 of Moderate air quality, showing improvement over 2024 and 2023 on the same day.
Day & Night AQI Trend: 28th Jul - 29th Jul 2026
Kitchener, Waterloo, Ontario, Canada
AQI
Day
Night
.
5 AM28th Jul 2026
9 PM
4 AM29th Jul 2026
Day time
Avg. Highest Time
11AM28th Jul
63AQI
Avg. Lowest Time
3PM28th Jul
38AQI
Night time
Avg. Highest Time
5AM28th Jul
60AQI
Avg. Lowest Time
4AM29th Jul
29AQI
In the last 24 hours,
Kitchener's AQI reached its highest point of 63 at 11 AM during the Day, while the lowest point, 29, was recorded at 4 AM during the Night between 28th Jul and 29th Jul 2026.
Day & Night AQI Trend : Jun - Jul 2026
Kitchener, Waterloo, Ontario, Canada
JunJul
30th - 01st01st - 02nd02nd - 03rd03rd - 04th04th - 05th05th - 06th06th - 07th07th - 08th08th - 09th09th - 10th10th - 11th11th - 12th12th - 13th13th - 14th14th - 15th15th - 16th16th - 17th17th - 18th18th - 19th19th - 20th20th - 21st21st - 22nd22nd - 23rd23rd - 24th24th - 25th25th - 26th26th - 27th27th - 28th28th - 29th29th
Day
Night
30th Jun 2026565 AMAQI
30th Jun 2026576 AMAQI
30th Jun 2026557 AMAQI
30th Jun 2026568 AMAQI
30th Jun 2026589 AMAQI
30th Jun 20265610 AMAQI
30th Jun 20265411 AMAQI
30th Jun 20265812 PMAQI
30th Jun 2026531 PMAQI
30th Jun 2026572 PMAQI
30th Jun 2026513 PMAQI
30th Jun 2026564 PMAQI
30th Jun 2026525 PMAQI
30th Jun 2026536 PMAQI
30th Jun 2026577 PMAQI
30th Jun 2026628 PMAQI
30th Jun 2026589 PMAQI
30th Jun 20265910 PMAQI
30th Jun 20265811 PMAQI
1st Jul 20266712 AMAQI
1st Jul 2026641 AMAQI
1st Jul 2026592 AMAQI
1st Jul 2026623 AMAQI
1st Jul 2026624 AMAQI
27°C18/34°C
1st Jul 2026575 AMAQI
1st Jul 2026596 AMAQI
1st Jul 2026607 AMAQI
1st Jul 2026568 AMAQI
1st Jul 2026579 AMAQI
1st Jul 20265510 AMAQI
1st Jul 20265611 AMAQI
1st Jul 20265812 PMAQI
1st Jul 2026561 PMAQI
1st Jul 2026512 PMAQI
1st Jul 2026583 PMAQI
1st Jul 2026574 PMAQI
1st Jul 2026695 PMAQI
1st Jul 2026726 PMAQI
1st Jul 2026457 PMAQI
1st Jul 2026528 PMAQI
1st Jul 2026289 PMAQI
1st Jul 20262610 PMAQI
1st Jul 20264611 PMAQI
2nd Jul 20264212 AMAQI
2nd Jul 2026461 AMAQI
2nd Jul 2026462 AMAQI
2nd Jul 2026483 AMAQI
2nd Jul 2026484 AMAQI
28°C23/37°C
2nd Jul 2026505 AMAQI
2nd Jul 2026486 AMAQI
2nd Jul 2026517 AMAQI
2nd Jul 2026538 AMAQI
2nd Jul 2026549 AMAQI
2nd Jul 20265310 AMAQI
2nd Jul 20264811 AMAQI
2nd Jul 20265212 PMAQI
2nd Jul 2026551 PMAQI
2nd Jul 2026532 PMAQI
2nd Jul 2026533 PMAQI
2nd Jul 2026504 PMAQI
2nd Jul 2026455 PMAQI
2nd Jul 2026496 PMAQI
2nd Jul 2026387 PMAQI
2nd Jul 2026428 PMAQI
2nd Jul 2026429 PMAQI
2nd Jul 20264710 PMAQI
2nd Jul 20264811 PMAQI
3rd Jul 20264412 AMAQI
3rd Jul 2026511 AMAQI
3rd Jul 2026462 AMAQI
3rd Jul 2026443 AMAQI
3rd Jul 2026464 AMAQI
27°C22/36°C
3rd Jul 2026425 AMAQI
3rd Jul 2026486 AMAQI
3rd Jul 2026447 AMAQI
3rd Jul 2026318 AMAQI
3rd Jul 2026339 AMAQI
3rd Jul 20263610 AMAQI
3rd Jul 20265311 AMAQI
3rd Jul 20264912 PMAQI
3rd Jul 2026501 PMAQI
3rd Jul 2026422 PMAQI
3rd Jul 2026383 PMAQI
3rd Jul 2026314 PMAQI
3rd Jul 2026305 PMAQI
3rd Jul 2026306 PMAQI
3rd Jul 2026307 PMAQI
3rd Jul 2026248 PMAQI
3rd Jul 2026269 PMAQI
3rd Jul 20262610 PMAQI
3rd Jul 20263111 PMAQI
4th Jul 20263312 AMAQI
4th Jul 2026311 AMAQI
4th Jul 2026302 AMAQI
4th Jul 2026313 AMAQI
4th Jul 2026284 AMAQI
27°C21/34°C
4th Jul 2026335 AMAQI
4th Jul 2026426 AMAQI
4th Jul 2026567 AMAQI
4th Jul 2026368 AMAQI
4th Jul 2026389 AMAQI
4th Jul 20263310 AMAQI
4th Jul 20263311 AMAQI
4th Jul 20263812 PMAQI
4th Jul 2026381 PMAQI
4th Jul 2026382 PMAQI
4th Jul 2026313 PMAQI
4th Jul 2026314 PMAQI
4th Jul 2026365 PMAQI
4th Jul 2026366 PMAQI
4th Jul 2026387 PMAQI
4th Jul 2026508 PMAQI
4th Jul 2026539 PMAQI
4th Jul 20265010 PMAQI
4th Jul 20264011 PMAQI
5th Jul 20263812 AMAQI
5th Jul 2026441 AMAQI
5th Jul 2026482 AMAQI
5th Jul 2026543 AMAQI
5th Jul 2026684 AMAQI
24°C21/30°C
5th Jul 2026675 AMAQI
5th Jul 2026676 AMAQI
5th Jul 2026677 AMAQI
5th Jul 2026708 AMAQI
5th Jul 2026589 AMAQI
5th Jul 20266210 AMAQI
5th Jul 20264611 AMAQI
5th Jul 20264412 PMAQI
5th Jul 2026501 PMAQI
5th Jul 2026422 PMAQI
5th Jul 2026463 PMAQI
5th Jul 2026484 PMAQI
5th Jul 2026475 PMAQI
5th Jul 2026446 PMAQI
5th Jul 2026507 PMAQI
5th Jul 2026528 PMAQI
5th Jul 2026549 PMAQI
5th Jul 20265410 PMAQI
5th Jul 20265411 PMAQI
6th Jul 20265312 AMAQI
6th Jul 2026571 AMAQI
6th Jul 2026592 AMAQI
6th Jul 2026573 AMAQI
6th Jul 2026584 AMAQI
22°C18/28°C
6th Jul 2026515 AMAQI
6th Jul 2026446 AMAQI
6th Jul 2026317 AMAQI
6th Jul 2026268 AMAQI
6th Jul 2026289 AMAQI
6th Jul 20263110 AMAQI
6th Jul 20263311 AMAQI
6th Jul 20263812 PMAQI
6th Jul 2026441 PMAQI
6th Jul 2026452 PMAQI
6th Jul 2026523 PMAQI
6th Jul 2026574 PMAQI
6th Jul 2026545 PMAQI
6th Jul 2026466 PMAQI
6th Jul 2026457 PMAQI
6th Jul 2026278 PMAQI
6th Jul 2026279 PMAQI
6th Jul 20263110 PMAQI
6th Jul 20263011 PMAQI
7th Jul 20263312 AMAQI
7th Jul 2026401 AMAQI
7th Jul 2026482 AMAQI
7th Jul 2026523 AMAQI
7th Jul 2026544 AMAQI
22°C15/29°C
7th Jul 2026585 AMAQI
7th Jul 2026386 AMAQI
7th Jul 2026387 AMAQI
7th Jul 2026288 AMAQI
7th Jul 2026289 AMAQI
7th Jul 20262810 AMAQI
7th Jul 20263411 AMAQI
7th Jul 20263212 PMAQI
7th Jul 2026311 PMAQI
7th Jul 2026302 PMAQI
7th Jul 2026303 PMAQI
7th Jul 2026314 PMAQI
7th Jul 2026325 PMAQI
7th Jul 2026316 PMAQI
7th Jul 2026327 PMAQI
7th Jul 2026288 PMAQI
7th Jul 2026309 PMAQI
7th Jul 20262810 PMAQI
7th Jul 20262811 PMAQI
8th Jul 20262812 AMAQI
8th Jul 2026281 AMAQI
8th Jul 2026302 AMAQI
8th Jul 2026323 AMAQI
8th Jul 2026314 AMAQI
23°C18/31°C
8th Jul 2026285 AMAQI
8th Jul 2026316 AMAQI
8th Jul 2026277 AMAQI
8th Jul 2026248 AMAQI
8th Jul 2026269 AMAQI
8th Jul 20262810 AMAQI
8th Jul 20263011 AMAQI
8th Jul 20263012 PMAQI
8th Jul 2026301 PMAQI
8th Jul 2026302 PMAQI
8th Jul 2026303 PMAQI
8th Jul 2026304 PMAQI
8th Jul 2026285 PMAQI
8th Jul 2026426 PMAQI
8th Jul 2026427 PMAQI
8th Jul 2026408 PMAQI
8th Jul 2026369 PMAQI
8th Jul 20264010 PMAQI
8th Jul 20264411 PMAQI
9th Jul 20263812 AMAQI
9th Jul 2026441 AMAQI
9th Jul 2026502 AMAQI
9th Jul 2026533 AMAQI
9th Jul 2026524 AMAQI
24°C16/33°C
9th Jul 2026565 AMAQI
9th Jul 2026626 AMAQI
9th Jul 2026607 AMAQI
9th Jul 2026538 AMAQI
9th Jul 2026559 AMAQI
9th Jul 20265010 AMAQI
9th Jul 20264211 AMAQI
9th Jul 20264412 PMAQI
9th Jul 2026461 PMAQI
9th Jul 2026402 PMAQI
9th Jul 2026283 PMAQI
9th Jul 2026304 PMAQI
9th Jul 2026315 PMAQI
9th Jul 2026316 PMAQI
9th Jul 2026357 PMAQI
9th Jul 2026338 PMAQI
9th Jul 2026369 PMAQI
9th Jul 20263810 PMAQI
9th Jul 20263611 PMAQI
10th Jul 20262912 AMAQI
10th Jul 2026261 AMAQI
10th Jul 2026242 AMAQI
10th Jul 2026283 AMAQI
10th Jul 2026334 AMAQI
24°C19/30°C
10th Jul 2026505 AMAQI
10th Jul 2026406 AMAQI
10th Jul 2026347 AMAQI
10th Jul 2026328 AMAQI
10th Jul 2026359 AMAQI
10th Jul 20263810 AMAQI
10th Jul 20264111 AMAQI
10th Jul 20264412 PMAQI
10th Jul 2026441 PMAQI
10th Jul 2026442 PMAQI
10th Jul 2026403 PMAQI
10th Jul 2026484 PMAQI
10th Jul 2026405 PMAQI
10th Jul 2026346 PMAQI
10th Jul 2026377 PMAQI
10th Jul 2026418 PMAQI
10th Jul 2026389 PMAQI
10th Jul 20263310 PMAQI
10th Jul 20264011 PMAQI
11th Jul 20264612 AMAQI
11th Jul 2026511 AMAQI
11th Jul 2026532 AMAQI
11th Jul 2026553 AMAQI
11th Jul 2026594 AMAQI
23°C18/28°C
11th Jul 2026625 AMAQI
11th Jul 2026666 AMAQI
11th Jul 2026627 AMAQI
11th Jul 2026648 AMAQI
11th Jul 2026629 AMAQI
11th Jul 20266010 AMAQI
11th Jul 20265811 AMAQI
11th Jul 20265312 PMAQI
11th Jul 2026601 PMAQI
11th Jul 2026602 PMAQI
11th Jul 2026563 PMAQI
11th Jul 2026554 PMAQI
11th Jul 2026585 PMAQI
11th Jul 2026576 PMAQI
11th Jul 2026667 PMAQI
11th Jul 2026708 PMAQI
11th Jul 2026699 PMAQI
11th Jul 20267410 PMAQI
11th Jul 20267111 PMAQI
12th Jul 20266912 AMAQI
12th Jul 2026761 AMAQI
12th Jul 2026722 AMAQI
12th Jul 2026763 AMAQI
12th Jul 2026794 AMAQI
23°C16/30°C
12th Jul 2026755 AMAQI
12th Jul 2026766 AMAQI
12th Jul 2026737 AMAQI
12th Jul 2026748 AMAQI
12th Jul 2026609 AMAQI
12th Jul 20264010 AMAQI
12th Jul 20265111 AMAQI
12th Jul 20265812 PMAQI
12th Jul 2026571 PMAQI
12th Jul 2026602 PMAQI
12th Jul 2026593 PMAQI
12th Jul 2026564 PMAQI
12th Jul 2026585 PMAQI
12th Jul 2026606 PMAQI
12th Jul 2026747 PMAQI
12th Jul 2026828 PMAQI
12th Jul 2026879 PMAQI
12th Jul 20268110 PMAQI
12th Jul 20268211 PMAQI
13th Jul 20268112 AMAQI
13th Jul 2026861 AMAQI
13th Jul 2026802 AMAQI
13th Jul 2026823 AMAQI
13th Jul 2026814 AMAQI
23°C14/31°C
13th Jul 2026835 AMAQI
13th Jul 2026816 AMAQI
13th Jul 2026737 AMAQI
13th Jul 2026788 AMAQI
13th Jul 2026679 AMAQI
13th Jul 20266010 AMAQI
13th Jul 20265811 AMAQI
13th Jul 20265612 PMAQI
13th Jul 2026571 PMAQI
13th Jul 2026572 PMAQI
13th Jul 2026563 PMAQI
13th Jul 2026554 PMAQI
13th Jul 2026545 PMAQI
13th Jul 2026506 PMAQI
13th Jul 2026467 PMAQI
13th Jul 2026368 PMAQI
13th Jul 2026469 PMAQI
13th Jul 20264210 PMAQI
13th Jul 20266611 PMAQI
14th Jul 20266912 AMAQI
14th Jul 2026661 AMAQI
14th Jul 2026682 AMAQI
14th Jul 2026673 AMAQI
14th Jul 2026644 AMAQI
24°C14/34°C
14th Jul 2026715 AMAQI
14th Jul 2026676 AMAQI
14th Jul 2026627 AMAQI
14th Jul 2026588 AMAQI
14th Jul 2026559 AMAQI
14th Jul 20265410 AMAQI
14th Jul 20265411 AMAQI
14th Jul 20265312 PMAQI
14th Jul 2026521 PMAQI
14th Jul 2026482 PMAQI
14th Jul 2026443 PMAQI
14th Jul 2026324 PMAQI
14th Jul 2026345 PMAQI
14th Jul 2026366 PMAQI
14th Jul 2026307 PMAQI
14th Jul 2026388 PMAQI
14th Jul 2026339 PMAQI
14th Jul 20264210 PMAQI
14th Jul 20265011 PMAQI
15th Jul 20264612 AMAQI
15th Jul 2026441 AMAQI
15th Jul 2026362 AMAQI
15th Jul 2026253 AMAQI
15th Jul 2026294 AMAQI
29°C21/38°C
15th Jul 2026315 AMAQI
15th Jul 2026426 AMAQI
15th Jul 2026607 AMAQI
15th Jul 20261228 AMAQI
15th Jul 20261819 AMAQI
15th Jul 202619710 AMAQI
15th Jul 202623111 AMAQI
15th Jul 202628412 PMAQI
15th Jul 20263321 PMAQI
15th Jul 20262512 PMAQI
15th Jul 20262063 PMAQI
15th Jul 20261894 PMAQI
15th Jul 20261885 PMAQI
15th Jul 20261856 PMAQI
15th Jul 20261797 PMAQI
15th Jul 20261778 PMAQI
15th Jul 20261729 PMAQI
15th Jul 202617210 PMAQI
15th Jul 202616711 PMAQI
16th Jul 202616512 AMAQI
16th Jul 20261641 AMAQI
16th Jul 20261682 AMAQI
16th Jul 20261893 AMAQI
16th Jul 20262684 AMAQI
26°C20/34°C
16th Jul 20262915 AMAQI
16th Jul 20262926 AMAQI
16th Jul 20262667 AMAQI
16th Jul 20262148 AMAQI
16th Jul 20261899 AMAQI
16th Jul 202618310 AMAQI
16th Jul 202617611 AMAQI
16th Jul 202617212 PMAQI
16th Jul 20261721 PMAQI
16th Jul 20261722 PMAQI
16th Jul 20261703 PMAQI
16th Jul 20261784 PMAQI
16th Jul 20262065 PMAQI
16th Jul 20262026 PMAQI
16th Jul 20262047 PMAQI
16th Jul 20262488 PMAQI
16th Jul 20262829 PMAQI
16th Jul 202629510 PMAQI
16th Jul 202627511 PMAQI
17th Jul 202627612 AMAQI
17th Jul 20262911 AMAQI
17th Jul 20262932 AMAQI
17th Jul 20262623 AMAQI
17th Jul 20262394 AMAQI
22°C17/27°C
17th Jul 20262895 AMAQI
17th Jul 20263056 AMAQI
17th Jul 20263087 AMAQI
17th Jul 20263168 AMAQI
17th Jul 20262469 AMAQI
17th Jul 202622610 AMAQI
17th Jul 202621011 AMAQI
17th Jul 202616712 PMAQI
17th Jul 20261631 PMAQI
17th Jul 20261732 PMAQI
17th Jul 20261643 PMAQI
17th Jul 20261714 PMAQI
17th Jul 20261665 PMAQI
17th Jul 20261636 PMAQI
17th Jul 20261707 PMAQI
17th Jul 20261708 PMAQI
17th Jul 20261709 PMAQI
17th Jul 202617210 PMAQI
17th Jul 202617611 PMAQI
18th Jul 202618012 AMAQI
18th Jul 20261821 AMAQI
18th Jul 20261762 AMAQI
18th Jul 20261783 AMAQI
18th Jul 20261744 AMAQI
23°C14/32°C
18th Jul 20261755 AMAQI
18th Jul 20261716 AMAQI
18th Jul 20261727 AMAQI
18th Jul 20261128 AMAQI
18th Jul 2026999 AMAQI
18th Jul 20269210 AMAQI
18th Jul 20267411 AMAQI
18th Jul 20266912 PMAQI
18th Jul 2026711 PMAQI
18th Jul 2026552 PMAQI
18th Jul 2026733 PMAQI
18th Jul 2026724 PMAQI
18th Jul 2026815 PMAQI
18th Jul 20261286 PMAQI
18th Jul 20261527 PMAQI
18th Jul 20261528 PMAQI
18th Jul 20261539 PMAQI
18th Jul 202614610 PMAQI
18th Jul 20268411 PMAQI
19th Jul 20267812 AMAQI
19th Jul 2026821 AMAQI
19th Jul 2026782 AMAQI
19th Jul 2026713 AMAQI
19th Jul 2026684 AMAQI
23°C17/30°C
19th Jul 2026765 AMAQI
19th Jul 2026846 AMAQI
19th Jul 20261007 AMAQI
19th Jul 20261028 AMAQI
19th Jul 20261009 AMAQI
19th Jul 20266610 AMAQI
19th Jul 20265411 AMAQI
19th Jul 20264512 PMAQI
19th Jul 2026481 PMAQI
19th Jul 2026522 PMAQI
19th Jul 2026363 PMAQI
19th Jul 2026564 PMAQI
19th Jul 2026215 PMAQI
19th Jul 2026276 PMAQI
19th Jul 2026297 PMAQI
19th Jul 2026308 PMAQI
19th Jul 2026289 PMAQI
19th Jul 20262410 PMAQI
19th Jul 20262311 PMAQI
20th Jul 20261812 AMAQI
20th Jul 2026171 AMAQI
20th Jul 2026192 AMAQI
20th Jul 2026213 AMAQI
20th Jul 2026214 AMAQI
19°C13/25°C
20th Jul 2026195 AMAQI
20th Jul 2026236 AMAQI
20th Jul 2026237 AMAQI
20th Jul 2026248 AMAQI
20th Jul 2026319 AMAQI
20th Jul 20261710 AMAQI
20th Jul 20262411 AMAQI
20th Jul 20262512 PMAQI
20th Jul 2026551 PMAQI
20th Jul 2026562 PMAQI
20th Jul 2026643 PMAQI
20th Jul 2026654 PMAQI
20th Jul 2026715 PMAQI
20th Jul 2026726 PMAQI
20th Jul 20261007 PMAQI
20th Jul 2026928 PMAQI
20th Jul 2026949 PMAQI
20th Jul 202610310 PMAQI
21st Jul 20269812 AMAQI
21st Jul 2026971 AMAQI
21st Jul 20261042 AMAQI
21st Jul 2026983 AMAQI
21st Jul 20261024 AMAQI
18°C9/28°C
21st Jul 2026905 AMAQI
21st Jul 2026726 AMAQI
21st Jul 2026587 AMAQI
21st Jul 2026858 AMAQI
21st Jul 2026679 AMAQI
21st Jul 20267110 AMAQI
21st Jul 20268111 AMAQI
21st Jul 20267012 PMAQI
21st Jul 2026821 PMAQI
21st Jul 2026702 PMAQI
21st Jul 2026543 PMAQI
21st Jul 2026444 PMAQI
21st Jul 2026385 PMAQI
21st Jul 2026296 PMAQI
21st Jul 2026367 PMAQI
21st Jul 2026428 PMAQI
21st Jul 2026409 PMAQI
21st Jul 20262710 PMAQI
21st Jul 20262311 PMAQI
22nd Jul 20261812 AMAQI
22nd Jul 2026181 AMAQI
22nd Jul 2026172 AMAQI
22nd Jul 2026133 AMAQI
22nd Jul 2026224 AMAQI
21°C16/25°C
22nd Jul 2026245 AMAQI
22nd Jul 2026426 AMAQI
22nd Jul 2026267 AMAQI
22nd Jul 2026248 AMAQI
22nd Jul 2026369 AMAQI
22nd Jul 20262810 AMAQI
22nd Jul 20262611 AMAQI
22nd Jul 20262412 PMAQI
22nd Jul 2026231 PMAQI
22nd Jul 2026202 PMAQI
22nd Jul 2026203 PMAQI
22nd Jul 2026194 PMAQI
22nd Jul 2026225 PMAQI
22nd Jul 2026206 PMAQI
22nd Jul 2026267 PMAQI
22nd Jul 2026248 PMAQI
22nd Jul 2026269 PMAQI
22nd Jul 20262010 PMAQI
22nd Jul 20261911 PMAQI
23rd Jul 20262012 AMAQI
23rd Jul 2026221 AMAQI
23rd Jul 2026202 AMAQI
23rd Jul 2026203 AMAQI
23rd Jul 2026194 AMAQI
17°C12/23°C
23rd Jul 2026205 AMAQI
23rd Jul 2026226 AMAQI
23rd Jul 2026197 AMAQI
23rd Jul 2026448 AMAQI
23rd Jul 2026369 AMAQI
23rd Jul 20262510 AMAQI
23rd Jul 20262611 AMAQI
23rd Jul 20262712 PMAQI
23rd Jul 2026251 PMAQI
23rd Jul 2026252 PMAQI
23rd Jul 2026273 PMAQI
23rd Jul 2026294 PMAQI
23rd Jul 2026255 PMAQI
23rd Jul 2026296 PMAQI
23rd Jul 2026237 PMAQI
23rd Jul 2026248 PMAQI
23rd Jul 2026259 PMAQI
23rd Jul 20262710 PMAQI
23rd Jul 20262511 PMAQI
24th Jul 20262512 AMAQI
24th Jul 2026251 AMAQI
24th Jul 2026272 AMAQI
24th Jul 2026273 AMAQI
24th Jul 2026274 AMAQI
17°C10/25°C
24th Jul 2026335 AMAQI
24th Jul 2026226 AMAQI
24th Jul 2026277 AMAQI
24th Jul 2026258 AMAQI
24th Jul 2026259 AMAQI
24th Jul 20262610 AMAQI
24th Jul 20262511 AMAQI
24th Jul 20262712 PMAQI
24th Jul 2026291 PMAQI
24th Jul 2026272 PMAQI
24th Jul 2026263 PMAQI
24th Jul 2026244 PMAQI
24th Jul 2026295 PMAQI
24th Jul 2026296 PMAQI
24th Jul 2026257 PMAQI
24th Jul 2026258 PMAQI
24th Jul 2026239 PMAQI
24th Jul 20262910 PMAQI
24th Jul 20263011 PMAQI
25th Jul 20262112 AMAQI
25th Jul 2026211 AMAQI
25th Jul 2026292 AMAQI
25th Jul 2026333 AMAQI
25th Jul 2026364 AMAQI
19°C10/29°C
25th Jul 2026345 AMAQI
25th Jul 2026216 AMAQI
25th Jul 2026217 AMAQI
25th Jul 2026218 AMAQI
25th Jul 2026219 AMAQI
25th Jul 20262310 AMAQI
25th Jul 20262111 AMAQI
25th Jul 20262312 PMAQI
25th Jul 2026231 PMAQI
25th Jul 2026252 PMAQI
25th Jul 2026253 PMAQI
25th Jul 2026254 PMAQI
25th Jul 2026235 PMAQI
25th Jul 2026256 PMAQI
25th Jul 2026257 PMAQI
25th Jul 2026258 PMAQI
25th Jul 2026259 PMAQI
25th Jul 20262710 PMAQI
25th Jul 20262911 PMAQI
26th Jul 20263612 AMAQI
26th Jul 2026381 AMAQI
26th Jul 2026312 AMAQI
26th Jul 2026313 AMAQI
26th Jul 2026364 AMAQI
21°C13/28°C
26th Jul 2026425 AMAQI
26th Jul 2026426 AMAQI
26th Jul 2026467 AMAQI
26th Jul 2026428 AMAQI
26th Jul 2026429 AMAQI
26th Jul 20264410 AMAQI
26th Jul 20264211 AMAQI
26th Jul 20264012 PMAQI
26th Jul 2026421 PMAQI
26th Jul 2026422 PMAQI
26th Jul 2026403 PMAQI
26th Jul 2026404 PMAQI
26th Jul 2026405 PMAQI
26th Jul 2026426 PMAQI
26th Jul 2026427 PMAQI
26th Jul 2026408 PMAQI
26th Jul 2026389 PMAQI
26th Jul 20264210 PMAQI
26th Jul 20264011 PMAQI
27th Jul 20263812 AMAQI
27th Jul 2026421 AMAQI
27th Jul 2026402 AMAQI
27th Jul 2026363 AMAQI
27th Jul 2026384 AMAQI
21°C14/28°C
27th Jul 2026405 AMAQI
27th Jul 2026426 AMAQI
27th Jul 2026427 AMAQI
27th Jul 2026448 AMAQI
27th Jul 2026469 AMAQI
27th Jul 20264610 AMAQI
27th Jul 20264911 AMAQI
27th Jul 20265112 PMAQI
27th Jul 2026511 PMAQI
27th Jul 2026522 PMAQI
27th Jul 2026553 PMAQI
27th Jul 2026604 PMAQI
27th Jul 2026515 PMAQI
27th Jul 2026586 PMAQI
27th Jul 2026547 PMAQI
27th Jul 2026548 PMAQI
27th Jul 2026549 PMAQI
27th Jul 20265510 PMAQI
27th Jul 20265711 PMAQI
28th Jul 20265612 AMAQI
28th Jul 2026581 AMAQI
28th Jul 2026562 AMAQI
28th Jul 2026603 AMAQI
28th Jul 2026594 AMAQI
22°C14/31°C
28th Jul 2026605 AMAQI
28th Jul 2026586 AMAQI
28th Jul 2026577 AMAQI
28th Jul 2026608 AMAQI
28th Jul 2026589 AMAQI
28th Jul 20265910 AMAQI
28th Jul 20266311 AMAQI
28th Jul 20265912 PMAQI
28th Jul 2026571 PMAQI
28th Jul 2026552 PMAQI
28th Jul 2026383 PMAQI
28th Jul 2026464 PMAQI
28th Jul 2026425 PMAQI
28th Jul 2026426 PMAQI
28th Jul 2026467 PMAQI
28th Jul 2026448 PMAQI
28th Jul 2026429 PMAQI
28th Jul 20264210 PMAQI
28th Jul 20264011 PMAQI
29th Jul 20263612 AMAQI
29th Jul 2026361 AMAQI
29th Jul 2026332 AMAQI
29th Jul 2026333 AMAQI
29th Jul 2026294 AMAQI
22°C17/27°C
29th Jul 2026275 AMAQI
5 AM29th Jul 2026286 AMAQI
29th Jul 2026277 AMAQI
29th Jul 2026258 AMAQI
29th Jul 2026239 AMAQI
29th Jul 20262310 AMAQI
29th Jul 20262311 AMAQI
29th Jul 20262212 PMAQI
29th Jul 2026221 PMAQI
1 PM29th Jul 2026212 PMAQI
29th Jul 2026213 PMAQI
29th Jul 2026224 PMAQI
29th Jul 2026205 PMAQI
29th Jul 2026226 PMAQI
29th Jul 2026407 PMAQI
29th Jul 2026238 PMAQI
29th Jul 2026259 PMAQI
9 PM29th Jul 20262210 PMAQI
29th Jul 20262511 PMAQI
1 AM
4 AM
21°C15/28°C
Day time
Avg. Highest Time
5 AM - 8 AM
69AQI
4 hours / Day
120 hours / Month
Avg. Lowest Time
3 PM - 5 PM
56AQI
3 hours / Day
90 hours / Month
In the last 30 days, during the daytime, the highest AQI was between 5 AM to 8 AM (Avg. 69), while the lowest AQI was between 3 PM to 5 PM (Avg. 56).
Night time
Avg. Highest Time
4 AM
66AQI
1 hours / Day
30 hours / Month
Avg. Lowest Time
11 PM
60AQI
1 hours / Day
30 hours / Month
In the last 30 days, during the daytime, the highest AQI was between 4 AM to 4 AM (Avg. 66), while the lowest AQI was between 11 PM to 11 PM (Avg. 60).
2026 Days Vs Air Quality
Kitchener, Waterloo, Ontario, Canada
2026
76%
157
21%
43
2%
4
0.9%
2
Total number of days with different AQI categories in last 210 days in 2026 (155 days remaining)
Good
157 DaysModerate
43 DaysPoor
4 DaysUnhealthy
0 DaysSevere
2 DaysHazardous
0 DaysUnder WHO’s Safe Air Quality Limits: 76%
Health Risk Level:
Low
In 2026, 76% of 210 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
Kitchener, Waterloo, Ontario, Canada
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
7AQI (US)
7AQI (US)
2nd January 2026
7AQI (US)
7AQI (US)
3rd January 2026
21AQI (US)
21AQI (US)
4th January 2026
15AQI (US)
15AQI (US)
5th January 2026
66AQI (US)
66AQI (US)
6th January 2026
89AQI (US)
89AQI (US)
7th January 2026
60AQI (US)
60AQI (US)
8th January 2026
71AQI (US)
71AQI (US)
9th January 2026
33AQI (US)
33AQI (US)
10th January 2026
25AQI (US)
25AQI (US)
11th January 2026
22AQI (US)
22AQI (US)
12th January 2026
44AQI (US)
44AQI (US)
13th January 2026
55AQI (US)
55AQI (US)
14th January 2026
39AQI (US)
39AQI (US)
15th January 2026
11AQI (US)
11AQI (US)
16th January 2026
36AQI (US)
36AQI (US)
17th January 2026
44AQI (US)
44AQI (US)
18th January 2026
28AQI (US)
28AQI (US)
19th January 2026
32AQI (US)
32AQI (US)
20th January 2026
19AQI (US)
19AQI (US)
21st January 2026
40AQI (US)
40AQI (US)
22nd January 2026
53AQI (US)
53AQI (US)
23rd January 2026
60AQI (US)
60AQI (US)
24th January 2026
48AQI (US)
48AQI (US)
25th January 2026
49AQI (US)
49AQI (US)
26th January 2026
48AQI (US)
48AQI (US)
27th January 2026
44AQI (US)
44AQI (US)
28th January 2026
42AQI (US)
42AQI (US)
29th January 2026
49AQI (US)
49AQI (US)
30th January 2026
59AQI (US)
59AQI (US)
31st January 2026
44AQI (US)
44AQI (US)
1st February 2026
45AQI (US)
45AQI (US)
2nd February 2026
74AQI (US)
74AQI (US)
3rd February 2026
73AQI (US)
73AQI (US)
4th February 2026
43AQI (US)
43AQI (US)
5th February 2026
55AQI (US)
55AQI (US)
6th February 2026
76AQI (US)
76AQI (US)
7th February 2026
39AQI (US)
39AQI (US)
8th February 2026
43AQI (US)
43AQI (US)
9th February 2026
45AQI (US)
45AQI (US)
10th February 2026
49AQI (US)
49AQI (US)
11th February 2026
40AQI (US)
40AQI (US)
12th February 2026
39AQI (US)
39AQI (US)
13th February 2026
52AQI (US)
52AQI (US)
14th February 2026
84AQI (US)
84AQI (US)
15th February 2026
80AQI (US)
80AQI (US)
16th February 2026
103AQI (US)
103AQI (US)
17th February 2026
116AQI (US)
116AQI (US)
18th February 2026
61AQI (US)
61AQI (US)
19th February 2026
46AQI (US)
46AQI (US)
20th February 2026
50AQI (US)
50AQI (US)
21st February 2026
41AQI (US)
41AQI (US)
22nd February 2026
34AQI (US)
34AQI (US)
23rd February 2026
40AQI (US)
40AQI (US)
24th February 2026
42AQI (US)
42AQI (US)
25th February 2026
59AQI (US)
59AQI (US)
26th February 2026
33AQI (US)
33AQI (US)
27th February 2026
72AQI (US)
72AQI (US)
28th February 2026
39AQI (US)
39AQI (US)
1st March 2026
38AQI (US)
38AQI (US)
2nd March 2026
52AQI (US)
52AQI (US)
3rd March 2026
59AQI (US)
59AQI (US)
4th March 2026
96AQI (US)
96AQI (US)
5th March 2026
76AQI (US)
76AQI (US)
6th March 2026
58AQI (US)
58AQI (US)
7th March 2026
78AQI (US)
78AQI (US)
8th March 2026
34AQI (US)
34AQI (US)
9th March 2026
35AQI (US)
35AQI (US)
10th March 2026
59AQI (US)
59AQI (US)
11th March 2026
45AQI (US)
45AQI (US)
12th March 2026
38AQI (US)
38AQI (US)
13th March 2026
43AQI (US)
43AQI (US)
14th March 2026
36AQI (US)
36AQI (US)
15th March 2026
32AQI (US)
32AQI (US)
16th March 2026
37AQI (US)
37AQI (US)
17th March 2026
34AQI (US)
34AQI (US)
18th March 2026
35AQI (US)
35AQI (US)
19th March 2026
65AQI (US)
65AQI (US)
20th March 2026
81AQI (US)
81AQI (US)
21st March 2026
41AQI (US)
41AQI (US)
22nd March 2026
59AQI (US)
59AQI (US)
23rd March 2026
39AQI (US)
39AQI (US)
24th March 2026
35AQI (US)
35AQI (US)
25th March 2026
46AQI (US)
46AQI (US)
26th March 2026
61AQI (US)
61AQI (US)
27th March 2026
29AQI (US)
29AQI (US)
28th March 2026
31AQI (US)
31AQI (US)
29th March 2026
36AQI (US)
36AQI (US)
30th March 2026
43AQI (US)
43AQI (US)
31st March 2026
66AQI (US)
66AQI (US)
1st April 2026
30AQI (US)
30AQI (US)
2nd April 2026
30AQI (US)
30AQI (US)
3rd April 2026
40AQI (US)
40AQI (US)
4th April 2026
29AQI (US)
29AQI (US)
5th April 2026
31AQI (US)
31AQI (US)
6th April 2026
28AQI (US)
28AQI (US)
7th April 2026
27AQI (US)
27AQI (US)
8th April 2026
37AQI (US)
37AQI (US)
9th April 2026
49AQI (US)
49AQI (US)
10th April 2026
33AQI (US)
33AQI (US)
11th April 2026
31AQI (US)
31AQI (US)
12th April 2026
47AQI (US)
47AQI (US)
13th April 2026
47AQI (US)
47AQI (US)
14th April 2026
48AQI (US)
48AQI (US)
15th April 2026
42AQI (US)
42AQI (US)
16th April 2026
50AQI (US)
50AQI (US)
17th April 2026
18th April 2026
41AQI (US)
41AQI (US)
19th April 2026
32AQI (US)
32AQI (US)
20th April 2026
28AQI (US)
28AQI (US)
21st April 2026
33AQI (US)
33AQI (US)
22nd April 2026
23rd April 2026
37AQI (US)
37AQI (US)
24th April 2026
27AQI (US)
27AQI (US)
25th April 2026
28AQI (US)
28AQI (US)
26th April 2026
32AQI (US)
32AQI (US)
27th April 2026
27AQI (US)
27AQI (US)
28th April 2026
30AQI (US)
30AQI (US)
29th April 2026
27AQI (US)
27AQI (US)
30th April 2026
26AQI (US)
26AQI (US)
1st May 2026
26AQI (US)
26AQI (US)
2nd May 2026
23AQI (US)
23AQI (US)
3rd May 2026
31AQI (US)
31AQI (US)
4th May 2026
33AQI (US)
33AQI (US)
5th May 2026
40AQI (US)
40AQI (US)
6th May 2026
39AQI (US)
39AQI (US)
7th May 2026
27AQI (US)
27AQI (US)
8th May 2026
34AQI (US)
34AQI (US)
9th May 2026
10th May 2026
31AQI (US)
31AQI (US)
11th May 2026
27AQI (US)
27AQI (US)
12th May 2026
27AQI (US)
27AQI (US)
13th May 2026
42AQI (US)
42AQI (US)
14th May 2026
23AQI (US)
23AQI (US)
15th May 2026
41AQI (US)
41AQI (US)
16th May 2026
56AQI (US)
56AQI (US)
17th May 2026
67AQI (US)
67AQI (US)
18th May 2026
63AQI (US)
63AQI (US)
19th May 2026
45AQI (US)
45AQI (US)
20th May 2026
49AQI (US)
49AQI (US)
21st May 2026
45AQI (US)
45AQI (US)
22nd May 2026
43AQI (US)
43AQI (US)
23rd May 2026
50AQI (US)
50AQI (US)
24th May 2026
40AQI (US)
40AQI (US)
25th May 2026
44AQI (US)
44AQI (US)
26th May 2026
32AQI (US)
32AQI (US)
27th May 2026
30AQI (US)
30AQI (US)
28th May 2026
28AQI (US)
28AQI (US)
29th May 2026
27AQI (US)
27AQI (US)
30th May 2026
28AQI (US)
28AQI (US)
31st May 2026
33AQI (US)
33AQI (US)
1st June 2026
31AQI (US)
31AQI (US)
2nd June 2026
32AQI (US)
32AQI (US)
3rd June 2026
30AQI (US)
30AQI (US)
4th June 2026
29AQI (US)
29AQI (US)
5th June 2026
42AQI (US)
42AQI (US)
6th June 2026
46AQI (US)
46AQI (US)
7th June 2026
36AQI (US)
36AQI (US)
8th June 2026
29AQI (US)
29AQI (US)
9th June 2026
48AQI (US)
48AQI (US)
10th June 2026
45AQI (US)
45AQI (US)
11th June 2026
38AQI (US)
38AQI (US)
12th June 2026
28AQI (US)
28AQI (US)
13th June 2026
26AQI (US)
26AQI (US)
14th June 2026
27AQI (US)
27AQI (US)
15th June 2026
26AQI (US)
26AQI (US)
16th June 2026
27AQI (US)
27AQI (US)
17th June 2026
32AQI (US)
32AQI (US)
18th June 2026
32AQI (US)
32AQI (US)
19th June 2026
26AQI (US)
26AQI (US)
20th June 2026
24AQI (US)
24AQI (US)
21st June 2026
22AQI (US)
22AQI (US)
22nd June 2026
26AQI (US)
26AQI (US)
23rd June 2026
25AQI (US)
25AQI (US)
24th June 2026
24AQI (US)
24AQI (US)
25th June 2026
38AQI (US)
38AQI (US)
26th June 2026
34AQI (US)
34AQI (US)
27th June 2026
38AQI (US)
38AQI (US)
28th June 2026
37AQI (US)
37AQI (US)
29th June 2026
41AQI (US)
41AQI (US)
30th June 2026
56AQI (US)
56AQI (US)
1st July 2026
56AQI (US)
56AQI (US)
2nd July 2026
48AQI (US)
48AQI (US)
3rd July 2026
39AQI (US)
39AQI (US)
4th July 2026
38AQI (US)
38AQI (US)
5th July 2026
53AQI (US)
53AQI (US)
6th July 2026
43AQI (US)
43AQI (US)
7th July 2026
35AQI (US)
35AQI (US)
8th July 2026
32AQI (US)
32AQI (US)
9th July 2026
43AQI (US)
43AQI (US)
10th July 2026
37AQI (US)
37AQI (US)
11th July 2026
60AQI (US)
60AQI (US)
12th July 2026
68AQI (US)
68AQI (US)
13th July 2026
64AQI (US)
64AQI (US)
14th July 2026
52AQI (US)
52AQI (US)
15th July 2026
148AQI (US)
148AQI (US)
16th July 2026
214AQI (US)
214AQI (US)
17th July 2026
220AQI (US)
220AQI (US)
18th July 2026
126AQI (US)
126AQI (US)
19th July 2026
57AQI (US)
57AQI (US)
20th July 2026
46AQI (US)
46AQI (US)
21st July 2026
66AQI (US)
66AQI (US)
22nd July 2026
23AQI (US)
23AQI (US)
23rd July 2026
25AQI (US)
25AQI (US)
24th July 2026
27AQI (US)
27AQI (US)
25th July 2026
25AQI (US)
25AQI (US)
26th July 2026
40AQI (US)
40AQI (US)
27th July 2026
48AQI (US)
48AQI (US)
28th July 2026
52AQI (US)
52AQI (US)
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
41AQI (US)
56AQI (US)
49AQI (US)
35AQI (US)
37AQI (US)
33AQI (US)
64AQI (US)
No. of days
Jan.Feb.Mar.Apr.MayJun.Jul.Aug.Sep.Oct.Nov.Dec.Total Days
202645AQI (US)
23
8
16
10
2
19
12
28
27
3
29
1
15
9
2
2
157
43
4
2
Highest AQI (US) recorded in
July64AQI (US)
Lowest AQI (US) recorded in
June33AQI (US)
202535AQI (US)
29
2
23
5
29
2
30
31
19
11
24
7
17
11
3
28
2
28
3
26
4
23
8
307
55
3
Highest AQI (US) recorded in
August48AQI (US)
Lowest AQI (US) recorded in
May24AQI (US)
202433AQI (US)
27
4
24
5
31
30
29
2
25
3
29
2
24
7
23
7
28
3
30
30
1
330
34
Highest AQI (US) recorded in
January37AQI (US)
Lowest AQI (US) recorded in
November25AQI (US)
202342AQI (US)
24
7
22
6
25
6
25
5
29
2
10
14
6
21
10
19
12
28
2
29
2
25
4
24
7
281
77
6
Highest AQI (US) recorded in
June72AQI (US)
Lowest AQI (US) recorded in
October30AQI (US)
202235AQI (US)
25
5
19
2
27
4
29
27
4
24
6
19
5
1
25
3
29
2
25
5
26
5
276
41
Highest AQI (US) recorded in
June39AQI (US)
Lowest AQI (US) recorded in
August17AQI (US)
202137AQI (US)
23
5
1
25
3
27
4
28
2
25
6
25
5
23
8
23
8
26
4
28
3
25
5
27
4
305
57
1
Highest AQI (US) recorded in
July46AQI (US)
Lowest AQI (US) recorded in
October30AQI (US)
202032AQI (US)
11
2
21
18
29
1
31
31
28
2
31
26
4
25
6
251
15
Highest AQI (US) recorded in
November35AQI (US)
Lowest AQI (US) recorded in
October24AQI (US)
Most & Least Polluted Years Over the Last 7 Years
Most Polluted Year Recorded
2026(Avg.)
45AQI (US)Least Polluted Year Recorded
2020(Avg.)
32AQI (US)Kitchener's annual 2026 AQI (US) (45) shows an average percentage change of 27.1% (worsened AQI (US)) compared to previous years: 2020 (32), 2021 (37), 2022 (35), 2023 (42), 2024 (33), 2025 (35).
