Country Background
HistoryAQIPM2.5PM10COSO2NO2O3

Windsor, 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+

August Air Quality Analysis

Windsor, Ontario, Canada

2021
2022
2023
2024
2025
AQI
.
Days

AQI Trends: Highest and Lowest

Highest AQI recorded on
1st Aug 2025
92AQI
Lowest AQI recorded on
14th Aug 2023
18AQI

Same Day Analysis (1st August ):
On this day, AQI across the 5 years varied significantly: 2025 ranks 1st highest AQI at 92 of Moderate air quality on the same day.

Download 2024 Annual Data

World Air Quality Report

Globe

Day & Night AQI Trend: 1st Aug - 2nd Aug 2025

Windsor, Ontario, Canada

AQI
Day
Night
.

6 AM1st Aug 2025

9 PM

5 AM2nd Aug 2025

Day time
Avg. Highest Time
6AM1st Aug

82AQI

Avg. Lowest Time
8PM1st Aug

40AQI

Night time
Avg. Highest Time
9PM1st Aug

56AQI

Avg. Lowest Time
11PM1st Aug

36AQI

In the last 24 hours,

Windsor's AQI reached its highest point of 82 at 6 AM during the Day, while the lowest point, 36, was recorded at 11 PM during the Night between 1st Aug and 2nd Aug 2025.

Day & Night AQI Trend : Jul - Aug 2025

Windsor, Ontario, Canada

JulAug
03rd - 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 - 30th30th - 31st31st - 01st01st - 02nd02nd
Day
Night
3rd Jul 2025496 AMAQI
3rd Jul 2025507 AMAQI
3rd Jul 2025498 AMAQI
3rd Jul 2025499 AMAQI
3rd Jul 20254910 AMAQI
3rd Jul 20254811 AMAQI
3rd Jul 20254812 PMAQI
3rd Jul 2025481 PMAQI
3rd Jul 2025482 PMAQI
3rd Jul 2025503 PMAQI
3rd Jul 2025504 PMAQI
3rd Jul 2025495 PMAQI
3rd Jul 2025496 PMAQI
3rd Jul 2025497 PMAQI
3rd Jul 2025498 PMAQI
3rd Jul 2025509 PMAQI
3rd Jul 20255010 PMAQI
3rd Jul 20255111 PMAQI
4th Jul 20255012 AMAQI
4th Jul 2025501 AMAQI
4th Jul 2025492 AMAQI
4th Jul 2025483 AMAQI
4th Jul 2025494 AMAQI
4th Jul 2025495 AMAQI

--°C/°C

4th Jul 2025496 AMAQI
4th Jul 2025487 AMAQI
4th Jul 2025488 AMAQI
4th Jul 2025479 AMAQI
4th Jul 20254810 AMAQI
4th Jul 20254811 AMAQI
4th Jul 20255012 PMAQI
4th Jul 2025511 PMAQI
4th Jul 2025512 PMAQI
4th Jul 2025513 PMAQI
4th Jul 2025504 PMAQI
4th Jul 2025505 PMAQI
4th Jul 2025496 PMAQI
4th Jul 2025507 PMAQI
4th Jul 2025508 PMAQI
4th Jul 2025489 PMAQI
4th Jul 20254810 PMAQI
4th Jul 20255011 PMAQI
5th Jul 20255112 AMAQI
5th Jul 2025561 AMAQI
5th Jul 2025642 AMAQI
5th Jul 2025553 AMAQI
5th Jul 2025614 AMAQI
5th Jul 2025575 AMAQI

26°C19/36°C

5th Jul 2025536 AMAQI
5th Jul 2025527 AMAQI
5th Jul 2025538 AMAQI
5th Jul 2025549 AMAQI
5th Jul 20255710 AMAQI
5th Jul 20255611 AMAQI
5th Jul 20255312 PMAQI
5th Jul 2025521 PMAQI
5th Jul 2025522 PMAQI
5th Jul 2025513 PMAQI
5th Jul 2025524 PMAQI
5th Jul 2025545 PMAQI
5th Jul 2025536 PMAQI
5th Jul 2025537 PMAQI
5th Jul 2025548 PMAQI
5th Jul 2025549 PMAQI
5th Jul 20255410 PMAQI
5th Jul 20255411 PMAQI
6th Jul 20255412 AMAQI
6th Jul 2025541 AMAQI
6th Jul 2025532 AMAQI
6th Jul 2025533 AMAQI
6th Jul 2025544 AMAQI
6th Jul 2025555 AMAQI

28°C22/35°C

6th Jul 2025556 AMAQI
6th Jul 2025547 AMAQI
6th Jul 2025538 AMAQI
6th Jul 2025549 AMAQI
6th Jul 20255410 AMAQI
6th Jul 20255311 AMAQI
6th Jul 20255412 PMAQI
6th Jul 2025541 PMAQI
6th Jul 2025542 PMAQI
6th Jul 2025543 PMAQI
6th Jul 2025544 PMAQI
6th Jul 2025535 PMAQI
6th Jul 2025536 PMAQI
6th Jul 2025537 PMAQI
6th Jul 2025538 PMAQI
6th Jul 2025529 PMAQI
6th Jul 20255210 PMAQI
6th Jul 20255011 PMAQI
7th Jul 20254912 AMAQI
7th Jul 2025481 AMAQI
7th Jul 2025412 AMAQI
7th Jul 2025393 AMAQI
7th Jul 2025384 AMAQI
7th Jul 2025395 AMAQI

30°C24/37°C

7th Jul 2025386 AMAQI
7th Jul 2025337 AMAQI
7th Jul 2025298 AMAQI
7th Jul 2025339 AMAQI
7th Jul 20253210 AMAQI
7th Jul 20253111 AMAQI
7th Jul 20253112 PMAQI
7th Jul 2025311 PMAQI
7th Jul 2025312 PMAQI
7th Jul 2025323 PMAQI
7th Jul 2025344 PMAQI
7th Jul 2025355 PMAQI
7th Jul 2025346 PMAQI
7th Jul 2025357 PMAQI
7th Jul 2025358 PMAQI
7th Jul 2025359 PMAQI
7th Jul 20253610 PMAQI
7th Jul 20253611 PMAQI
8th Jul 20253712 AMAQI
8th Jul 2025381 AMAQI
8th Jul 2025442 AMAQI
8th Jul 2025453 AMAQI
8th Jul 2025464 AMAQI
8th Jul 2025475 AMAQI

23°C20/24°C

8th Jul 2025476 AMAQI
8th Jul 2025487 AMAQI
8th Jul 2025488 AMAQI
8th Jul 2025489 AMAQI
8th Jul 20254910 AMAQI
8th Jul 20254911 AMAQI
8th Jul 20254812 PMAQI
8th Jul 2025481 PMAQI
8th Jul 2025502 PMAQI
8th Jul 2025513 PMAQI
8th Jul 2025524 PMAQI
8th Jul 2025505 PMAQI
8th Jul 2025496 PMAQI
8th Jul 2025517 PMAQI
8th Jul 2025518 PMAQI
8th Jul 2025489 PMAQI
8th Jul 20254810 PMAQI
8th Jul 20254811 PMAQI
9th Jul 20254812 AMAQI
9th Jul 2025491 AMAQI
9th Jul 2025522 AMAQI
9th Jul 2025533 AMAQI
9th Jul 2025504 AMAQI
9th Jul 2025505 AMAQI

24°C17/32°C

9th Jul 2025516 AMAQI
9th Jul 2025507 AMAQI
9th Jul 2025498 AMAQI
9th Jul 2025499 AMAQI
9th Jul 20254710 AMAQI
9th Jul 20254711 AMAQI
9th Jul 20254712 PMAQI
9th Jul 2025461 PMAQI
9th Jul 2025462 PMAQI
9th Jul 2025453 PMAQI
9th Jul 2025464 PMAQI
9th Jul 2025475 PMAQI
9th Jul 2025486 PMAQI
9th Jul 2025477 PMAQI
9th Jul 2025498 PMAQI
9th Jul 2025499 PMAQI
9th Jul 20254810 PMAQI
9th Jul 20254811 PMAQI
10th Jul 20254812 AMAQI
10th Jul 2025471 AMAQI
10th Jul 2025452 AMAQI
10th Jul 2025463 AMAQI
10th Jul 2025464 AMAQI
10th Jul 2025475 AMAQI

25°C21/31°C

10th Jul 2025496 AMAQI
10th Jul 2025497 AMAQI
10th Jul 2025478 AMAQI
10th Jul 2025489 AMAQI
10th Jul 20254710 AMAQI
10th Jul 20254711 AMAQI
10th Jul 20254712 PMAQI
10th Jul 2025461 PMAQI
10th Jul 2025482 PMAQI
10th Jul 2025483 PMAQI
10th Jul 2025474 PMAQI
10th Jul 2025485 PMAQI
10th Jul 2025486 PMAQI
10th Jul 2025467 PMAQI
10th Jul 2025468 PMAQI
10th Jul 2025489 PMAQI
10th Jul 20254810 PMAQI
10th Jul 20254611 PMAQI
11th Jul 20254712 AMAQI
11th Jul 2025481 AMAQI
11th Jul 2025482 AMAQI
11th Jul 2025483 AMAQI
11th Jul 2025484 AMAQI
11th Jul 2025485 AMAQI

26°C20/31°C

11th Jul 2025476 AMAQI
11th Jul 2025487 AMAQI
11th Jul 2025488 AMAQI
11th Jul 2025489 AMAQI
11th Jul 20254910 AMAQI
11th Jul 20254911 AMAQI
11th Jul 20255012 PMAQI
11th Jul 2025501 PMAQI
11th Jul 2025502 PMAQI
11th Jul 2025503 PMAQI
11th Jul 2025504 PMAQI
11th Jul 2025495 PMAQI
11th Jul 2025496 PMAQI
11th Jul 2025477 PMAQI
11th Jul 2025478 PMAQI
11th Jul 2025499 PMAQI
11th Jul 20254910 PMAQI
11th Jul 20254711 PMAQI
12th Jul 20254712 AMAQI
12th Jul 2025451 AMAQI
12th Jul 2025382 AMAQI
12th Jul 2025383 AMAQI
12th Jul 2025384 AMAQI
12th Jul 2025425 AMAQI

25°C21/31°C

12th Jul 2025426 AMAQI
12th Jul 2025447 AMAQI
12th Jul 2025438 AMAQI
12th Jul 2025459 AMAQI
12th Jul 20254510 AMAQI
12th Jul 20254611 AMAQI
12th Jul 20254512 PMAQI
12th Jul 2025441 PMAQI
12th Jul 2025442 PMAQI
12th Jul 2025423 PMAQI
12th Jul 2025424 PMAQI
12th Jul 2025435 PMAQI
12th Jul 2025426 PMAQI
12th Jul 2025427 PMAQI
12th Jul 2025428 PMAQI
12th Jul 2025429 PMAQI
12th Jul 20254210 PMAQI
12th Jul 20254211 PMAQI
13th Jul 20254212 AMAQI
13th Jul 2025421 AMAQI
13th Jul 2025392 AMAQI
13th Jul 2025383 AMAQI
13th Jul 2025354 AMAQI
13th Jul 2025335 AMAQI

29°C23/36°C

13th Jul 2025316 AMAQI
13th Jul 2025337 AMAQI
13th Jul 2025328 AMAQI
13th Jul 2025399 AMAQI
13th Jul 20253610 AMAQI
13th Jul 20253611 AMAQI
13th Jul 20253812 PMAQI
13th Jul 2025391 PMAQI
13th Jul 2025422 PMAQI
13th Jul 2025413 PMAQI
13th Jul 2025404 PMAQI
13th Jul 2025395 PMAQI
13th Jul 2025396 PMAQI
13th Jul 2025407 PMAQI
13th Jul 2025428 PMAQI
13th Jul 2025409 PMAQI
13th Jul 20254110 PMAQI
13th Jul 20254611 PMAQI
14th Jul 20254212 AMAQI
14th Jul 2025421 AMAQI
14th Jul 2025482 AMAQI
14th Jul 2025553 AMAQI
14th Jul 2025564 AMAQI
14th Jul 2025545 AMAQI

27°C23/33°C

14th Jul 2025556 AMAQI
14th Jul 2025547 AMAQI
14th Jul 2025548 AMAQI
14th Jul 2025569 AMAQI
14th Jul 20255610 AMAQI
14th Jul 20255711 AMAQI
14th Jul 20255912 PMAQI
14th Jul 2025591 PMAQI
14th Jul 2025612 PMAQI
14th Jul 2025593 PMAQI
14th Jul 2025594 PMAQI
14th Jul 2025615 PMAQI
14th Jul 2025586 PMAQI
14th Jul 2025597 PMAQI
14th Jul 2025588 PMAQI
14th Jul 2025589 PMAQI
14th Jul 20255810 PMAQI
14th Jul 20255611 PMAQI
15th Jul 20255512 AMAQI
15th Jul 2025571 AMAQI
15th Jul 2025662 AMAQI
15th Jul 2025773 AMAQI
15th Jul 2025774 AMAQI
15th Jul 2025795 AMAQI

28°C21/34°C

15th Jul 2025796 AMAQI
15th Jul 2025807 AMAQI
15th Jul 2025788 AMAQI
15th Jul 2025769 AMAQI
15th Jul 20257910 AMAQI
15th Jul 20258211 AMAQI
15th Jul 20258012 PMAQI
15th Jul 2025801 PMAQI
15th Jul 2025832 PMAQI
15th Jul 2025803 PMAQI
15th Jul 2025814 PMAQI
15th Jul 2025815 PMAQI
15th Jul 2025816 PMAQI
15th Jul 2025807 PMAQI
15th Jul 2025838 PMAQI
15th Jul 2025789 PMAQI
15th Jul 20257910 PMAQI
15th Jul 20258111 PMAQI
16th Jul 20257812 AMAQI
16th Jul 2025801 AMAQI
16th Jul 2025832 AMAQI
16th Jul 2025843 AMAQI
16th Jul 2025834 AMAQI
16th Jul 2025815 AMAQI

27°C20/35°C

16th Jul 2025816 AMAQI
16th Jul 2025807 AMAQI
16th Jul 2025788 AMAQI
16th Jul 2025809 AMAQI
16th Jul 20257710 AMAQI
16th Jul 20257211 AMAQI
16th Jul 20257112 PMAQI
16th Jul 2025681 PMAQI
16th Jul 2025662 PMAQI
16th Jul 2025653 PMAQI
16th Jul 2025634 PMAQI
16th Jul 2025625 PMAQI
16th Jul 2025626 PMAQI
16th Jul 2025627 PMAQI
16th Jul 2025598 PMAQI
16th Jul 2025709 PMAQI
16th Jul 20256810 PMAQI
16th Jul 20255711 PMAQI
17th Jul 20255812 AMAQI
17th Jul 2025551 AMAQI
17th Jul 2025392 AMAQI
17th Jul 2025363 AMAQI
17th Jul 2025374 AMAQI
17th Jul 2025385 AMAQI

27°C22/34°C

17th Jul 2025376 AMAQI
17th Jul 2025377 AMAQI
17th Jul 2025378 AMAQI
17th Jul 2025379 AMAQI
17th Jul 20253610 AMAQI
17th Jul 20253411 AMAQI
17th Jul 20253912 PMAQI
17th Jul 2025471 PMAQI
17th Jul 2025382 PMAQI
17th Jul 2025353 PMAQI
17th Jul 2025384 PMAQI
17th Jul 2025375 PMAQI
17th Jul 2025386 PMAQI
17th Jul 2025367 PMAQI
17th Jul 2025358 PMAQI
17th Jul 2025369 PMAQI
17th Jul 20253610 PMAQI
17th Jul 20253511 PMAQI
18th Jul 20253512 AMAQI
18th Jul 2025321 AMAQI
18th Jul 2025262 AMAQI
18th Jul 2025243 AMAQI
18th Jul 2025234 AMAQI
18th Jul 2025235 AMAQI

25°C20/28°C

18th Jul 2025226 AMAQI
18th Jul 2025237 AMAQI
18th Jul 2025228 AMAQI
18th Jul 2025229 AMAQI
18th Jul 20252410 AMAQI
18th Jul 20252411 AMAQI
18th Jul 20252412 PMAQI
18th Jul 2025241 PMAQI
18th Jul 2025242 PMAQI
18th Jul 2025253 PMAQI
18th Jul 2025244 PMAQI
18th Jul 2025245 PMAQI
18th Jul 2025246 PMAQI
18th Jul 2025237 PMAQI
18th Jul 2025238 PMAQI
18th Jul 2025259 PMAQI
18th Jul 20252310 PMAQI
18th Jul 20252511 PMAQI
19th Jul 20252512 AMAQI
19th Jul 2025241 AMAQI
19th Jul 2025262 AMAQI
19th Jul 2025263 AMAQI
19th Jul 2025304 AMAQI
19th Jul 2025305 AMAQI

21°C16/26°C

19th Jul 2025316 AMAQI
19th Jul 2025277 AMAQI
19th Jul 2025288 AMAQI
19th Jul 2025279 AMAQI
19th Jul 20252710 AMAQI
19th Jul 20252911 AMAQI
19th Jul 20252512 PMAQI
19th Jul 2025261 PMAQI
19th Jul 2025262 PMAQI
19th Jul 2025293 PMAQI
19th Jul 2025304 PMAQI
19th Jul 2025305 PMAQI
19th Jul 2025296 PMAQI
19th Jul 2025287 PMAQI
19th Jul 2025298 PMAQI
19th Jul 2025289 PMAQI
19th Jul 20252910 PMAQI
19th Jul 20253011 PMAQI
20th Jul 20253112 AMAQI
20th Jul 2025301 AMAQI
20th Jul 2025282 AMAQI
20th Jul 2025303 AMAQI
20th Jul 2025314 AMAQI
20th Jul 2025375 AMAQI

24°C17/30°C

20th Jul 2025326 AMAQI
20th Jul 2025317 AMAQI
20th Jul 2025328 AMAQI
20th Jul 2025329 AMAQI
20th Jul 20253210 AMAQI
20th Jul 20253211 AMAQI
20th Jul 20253112 PMAQI
20th Jul 2025291 PMAQI
20th Jul 2025292 PMAQI
20th Jul 2025283 PMAQI
20th Jul 2025294 PMAQI
20th Jul 2025305 PMAQI
20th Jul 2025306 PMAQI
20th Jul 2025317 PMAQI
20th Jul 2025308 PMAQI
20th Jul 2025319 PMAQI
20th Jul 20253010 PMAQI
20th Jul 20253311 PMAQI
21st Jul 20253312 AMAQI
21st Jul 2025351 AMAQI
21st Jul 2025422 AMAQI
21st Jul 2025463 AMAQI
21st Jul 2025484 AMAQI
21st Jul 2025495 AMAQI

24°C21/27°C

21st Jul 2025496 AMAQI
21st Jul 2025497 AMAQI
21st Jul 2025528 AMAQI
21st Jul 2025529 AMAQI
21st Jul 20255210 AMAQI
21st Jul 20255311 AMAQI
21st Jul 20255712 PMAQI
21st Jul 2025551 PMAQI
21st Jul 2025542 PMAQI
21st Jul 2025503 PMAQI
21st Jul 2025494 PMAQI
21st Jul 2025505 PMAQI
21st Jul 2025506 PMAQI
21st Jul 2025467 PMAQI
21st Jul 2025438 PMAQI
21st Jul 2025459 PMAQI
21st Jul 20254410 PMAQI
21st Jul 20254111 PMAQI
22nd Jul 20253912 AMAQI
22nd Jul 2025381 AMAQI
22nd Jul 2025262 AMAQI
22nd Jul 2025233 AMAQI
22nd Jul 2025224 AMAQI
22nd Jul 2025215 AMAQI

22°C17/26°C

22nd Jul 2025236 AMAQI
22nd Jul 2025247 AMAQI
22nd Jul 2025238 AMAQI
22nd Jul 2025259 AMAQI
22nd Jul 20252510 AMAQI
22nd Jul 20252511 AMAQI
22nd Jul 20252612 PMAQI
22nd Jul 2025261 PMAQI
22nd Jul 2025262 PMAQI
22nd Jul 2025253 PMAQI
22nd Jul 2025264 PMAQI
22nd Jul 2025255 PMAQI
22nd Jul 2025266 PMAQI
22nd Jul 2025277 PMAQI
22nd Jul 2025268 PMAQI
22nd Jul 2025259 PMAQI
22nd Jul 20252510 PMAQI
22nd Jul 20252511 PMAQI
23rd Jul 20252512 AMAQI
23rd Jul 2025261 AMAQI
23rd Jul 2025282 AMAQI
23rd Jul 2025313 AMAQI
23rd Jul 2025264 AMAQI
23rd Jul 2025275 AMAQI

22°C15/31°C

23rd Jul 2025266 AMAQI
23rd Jul 2025277 AMAQI
23rd Jul 2025278 AMAQI
23rd Jul 2025299 AMAQI
23rd Jul 20252910 AMAQI
23rd Jul 20252911 AMAQI
23rd Jul 20253012 PMAQI
23rd Jul 2025301 PMAQI
23rd Jul 2025302 PMAQI
23rd Jul 2025313 PMAQI
23rd Jul 2025304 PMAQI
23rd Jul 2025315 PMAQI
23rd Jul 2025336 PMAQI
23rd Jul 2025337 PMAQI
23rd Jul 2025338 PMAQI
23rd Jul 2025309 PMAQI
23rd Jul 20253110 PMAQI
23rd Jul 20253511 PMAQI
24th Jul 20253312 AMAQI
24th Jul 2025331 AMAQI
24th Jul 2025372 AMAQI
24th Jul 2025373 AMAQI
24th Jul 2025364 AMAQI
24th Jul 2025375 AMAQI

25°C18/34°C

24th Jul 2025436 AMAQI
24th Jul 2025497 AMAQI
24th Jul 2025518 AMAQI
24th Jul 2025509 AMAQI
24th Jul 20255110 AMAQI
24th Jul 20255011 AMAQI
24th Jul 20255212 PMAQI
24th Jul 2025501 PMAQI
24th Jul 2025502 PMAQI
24th Jul 2025483 PMAQI
24th Jul 2025484 PMAQI
24th Jul 2025475 PMAQI
24th Jul 2025466 PMAQI
24th Jul 2025467 PMAQI
24th Jul 2025488 PMAQI
24th Jul 2025489 PMAQI
24th Jul 20254910 PMAQI
24th Jul 20254711 PMAQI
25th Jul 20254312 AMAQI
25th Jul 2025401 AMAQI
25th Jul 2025332 AMAQI
25th Jul 2025323 AMAQI
25th Jul 2025314 AMAQI
25th Jul 2025295 AMAQI

30°C23/39°C

25th Jul 2025306 AMAQI
25th Jul 2025327 AMAQI
25th Jul 2025358 AMAQI
25th Jul 2025349 AMAQI
25th Jul 20253410 AMAQI
25th Jul 20253411 AMAQI
25th Jul 20253312 PMAQI
25th Jul 2025341 PMAQI
25th Jul 2025342 PMAQI
25th Jul 2025353 PMAQI
25th Jul 2025344 PMAQI
25th Jul 2025345 PMAQI
25th Jul 2025346 PMAQI
25th Jul 2025357 PMAQI
25th Jul 2025338 PMAQI
25th Jul 2025339 PMAQI
25th Jul 20253410 PMAQI
25th Jul 20253711 PMAQI
26th Jul 20253812 AMAQI
26th Jul 2025401 AMAQI
26th Jul 2025472 AMAQI
26th Jul 2025523 AMAQI
26th Jul 2025504 AMAQI
26th Jul 2025485 AMAQI

27°C23/30°C

26th Jul 2025476 AMAQI
26th Jul 2025477 AMAQI
26th Jul 2025478 AMAQI
26th Jul 2025509 AMAQI
26th Jul 20255310 AMAQI
26th Jul 20255211 AMAQI
26th Jul 20255112 PMAQI
26th Jul 2025501 PMAQI
26th Jul 2025482 PMAQI
26th Jul 2025463 PMAQI
26th Jul 2025474 PMAQI
26th Jul 2025495 PMAQI
26th Jul 2025496 PMAQI
26th Jul 2025477 PMAQI
26th Jul 2025468 PMAQI
26th Jul 2025489 PMAQI
26th Jul 20254910 PMAQI
26th Jul 20254611 PMAQI
27th Jul 20254612 AMAQI
27th Jul 2025461 AMAQI
27th Jul 2025392 AMAQI
27th Jul 2025383 AMAQI
27th Jul 2025364 AMAQI
27th Jul 2025345 AMAQI

26°C22/31°C

27th Jul 2025356 AMAQI
27th Jul 2025347 AMAQI
27th Jul 2025328 AMAQI
27th Jul 2025339 AMAQI
27th Jul 20253610 AMAQI
27th Jul 20253911 AMAQI
27th Jul 20254112 PMAQI
27th Jul 2025391 PMAQI
27th Jul 2025382 PMAQI
27th Jul 2025373 PMAQI
27th Jul 2025394 PMAQI
27th Jul 2025395 PMAQI
27th Jul 2025386 PMAQI
27th Jul 2025407 PMAQI
27th Jul 2025408 PMAQI
27th Jul 2025369 PMAQI
27th Jul 20253810 PMAQI
27th Jul 20253811 PMAQI
28th Jul 20253812 AMAQI
28th Jul 2025361 AMAQI
28th Jul 2025342 AMAQI
28th Jul 2025353 AMAQI
28th Jul 2025374 AMAQI
28th Jul 2025375 AMAQI

29°C24/36°C

28th Jul 2025396 AMAQI
28th Jul 2025407 AMAQI
28th Jul 2025418 AMAQI
28th Jul 2025429 AMAQI
28th Jul 20254310 AMAQI
28th Jul 20254311 AMAQI
28th Jul 20254212 PMAQI
28th Jul 2025401 PMAQI
28th Jul 2025402 PMAQI
28th Jul 2025393 PMAQI
28th Jul 2025394 PMAQI
28th Jul 2025395 PMAQI
28th Jul 2025396 PMAQI
28th Jul 2025377 PMAQI
28th Jul 2025348 PMAQI
28th Jul 2025389 PMAQI
28th Jul 20253710 PMAQI
28th Jul 20253611 PMAQI
29th Jul 20253612 AMAQI
29th Jul 2025371 AMAQI
29th Jul 2025352 AMAQI
29th Jul 2025343 AMAQI
29th Jul 2025334 AMAQI
29th Jul 2025345 AMAQI

29°C23/36°C

29th Jul 2025316 AMAQI
29th Jul 2025317 AMAQI
29th Jul 2025358 AMAQI
29th Jul 2025409 AMAQI
29th Jul 20254010 AMAQI
29th Jul 20254311 AMAQI
29th Jul 20254212 PMAQI
29th Jul 2025431 PMAQI
29th Jul 2025432 PMAQI
29th Jul 2025423 PMAQI
29th Jul 2025434 PMAQI
29th Jul 2025425 PMAQI
29th Jul 2025426 PMAQI
29th Jul 2025417 PMAQI
29th Jul 2025438 PMAQI
29th Jul 2025409 PMAQI
29th Jul 20253910 PMAQI
29th Jul 20254111 PMAQI
30th Jul 20254212 AMAQI
30th Jul 2025431 AMAQI
30th Jul 2025462 AMAQI
30th Jul 2025443 AMAQI
30th Jul 2025444 AMAQI
30th Jul 2025455 AMAQI

28°C21/36°C

30th Jul 2025476 AMAQI
30th Jul 2025487 AMAQI
30th Jul 2025468 AMAQI
30th Jul 2025499 AMAQI
30th Jul 20254810 AMAQI
30th Jul 20254811 AMAQI
30th Jul 20254812 PMAQI
30th Jul 2025481 PMAQI
30th Jul 2025492 PMAQI
30th Jul 2025493 PMAQI
30th Jul 2025504 PMAQI
30th Jul 2025495 PMAQI
30th Jul 2025486 PMAQI
30th Jul 2025497 PMAQI
30th Jul 2025498 PMAQI
30th Jul 2025499 PMAQI
30th Jul 20254910 PMAQI
30th Jul 20254911 PMAQI
31st Jul 20254912 AMAQI
31st Jul 2025511 AMAQI
31st Jul 2025682 AMAQI
31st Jul 2025993 AMAQI
31st Jul 20251164 AMAQI
31st Jul 20251105 AMAQI

26°C23/29°C

31st Jul 20251086 AMAQI
31st Jul 2025867 AMAQI
31st Jul 2025898 AMAQI
31st Jul 2025879 AMAQI
31st Jul 20257910 AMAQI
31st Jul 20257411 AMAQI
31st Jul 20258012 PMAQI
31st Jul 20251021 PMAQI
31st Jul 2025972 PMAQI
31st Jul 2025993 PMAQI
31st Jul 20251014 PMAQI
31st Jul 20251105 PMAQI
31st Jul 20251116 PMAQI
31st Jul 20251177 PMAQI
31st Jul 20251118 PMAQI
31st Jul 2025999 PMAQI
31st Jul 202511110 PMAQI
31st Jul 202511911 PMAQI
1st Aug 202511312 AMAQI
1st Aug 20251041 AMAQI
1st Aug 2025992 AMAQI
1st Aug 2025883 AMAQI
1st Aug 2025864 AMAQI
1st Aug 2025845 AMAQI

21°C18/27°C

1st Aug 2025826 AMAQI
1st Aug 2025817 AMAQI
1st Aug 2025778 AMAQI
1st Aug 2025709 AMAQI
1st Aug 20256010 AMAQI
1st Aug 20255711 AMAQI
1st Aug 20255212 PMAQI
1st Aug 2025491 PMAQI
1st Aug 2025492 PMAQI
1st Aug 2025513 PMAQI
1st Aug 2025534 PMAQI
1st Aug 2025535 PMAQI
1st Aug 2025496 PMAQI
1st Aug 2025457 PMAQI
1st Aug 2025408 PMAQI
1st Aug 2025569 PMAQI
1st Aug 20254410 PMAQI
1st Aug 20253611 PMAQI
2nd Aug 20253712 AMAQI
2nd Aug 2025391 AMAQI
2nd Aug 2025402 AMAQI
2nd Aug 2025413 AMAQI
2nd Aug 2025394 AMAQI
2nd Aug 2025385 AMAQI

20°C15/26°C

2nd Aug 2025396 AMAQI
6 AM
2nd Aug 2025387 AMAQI
2nd Aug 2025368 AMAQI
2nd Aug 2025379 AMAQI
2nd Aug 20253810 AMAQI
2nd Aug 20253811 AMAQI
2nd Aug 20253612 PMAQI
2nd Aug 2025321 PMAQI
1 PM
2nd Aug 2025302 PMAQI
2nd Aug 2025323 PMAQI
2nd Aug 2025314 PMAQI
2nd Aug 2025365 PMAQI
2nd Aug 2025426 PMAQI
2nd Aug 2025487 PMAQI
2nd Aug 2025548 PMAQI
2nd Aug 2025519 PMAQI
9 PM
1 AM
5 AM

21°C14/29°C

Day time
Avg. Highest Time
6 AM - 9 PM

46AQI

16 hours / Day
480 hours / Month
Avg. Lowest Time
6 AM - 9 PM

46AQI

16 hours / Day
480 hours / Month
In the last 30 days, during the daytime, the highest AQI was between 6 AM to 9 PM (Avg. 46), while the lowest AQI was between 6 AM to 9 PM (Avg. 46).
Night time
Avg. Highest Time
12 AM - 11 PM

46AQI

8 hours / Day
240 hours / Month
Avg. Lowest Time
12 AM - 11 PM

46AQI

8 hours / Day
240 hours / Month
In the last 30 days, during the daytime, the highest AQI was between 12 AM to 11 PM (Avg. 46), while the lowest AQI was between 12 AM to 11 PM (Avg. 46).

2025 Days Vs Air Quality

Windsor, Ontario, Canada

2025

80%

170

19%

40

1%

3

Total number of days with different AQI categories in last 215 days in 2025 (150 days remaining)

Good
170 Days
Moderate
40 Days
Poor
3 Days
Unhealthy
0 Days
Severe
0 Days
Hazardous
0 Days

Under WHO’s Safe Air Quality Limits: 80%

Health Risk Level:

Low

In 2025, 80% of 215 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

Windsor, Ontario, Canada

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.

1st January 2025
20AQI
2nd January 2025
25AQI
3rd January 2025
24AQI
4th January 2025
23AQI
5th January 2025
24AQI
6th January 2025
21AQI
7th January 2025
21AQI
8th January 2025
22AQI
9th January 2025
27AQI
10th January 2025
69AQI
11th January 2025
60AQI
12th January 2025
55AQI
13th January 2025
36AQI
14th January 2025
30AQI
15th January 2025
32AQI
16th January 2025
59AQI
17th January 2025
48AQI
18th January 2025
32AQI
19th January 2025
24AQI
20th January 2025
23AQI
21st January 2025
28AQI
22nd January 2025
35AQI
23rd January 2025
42AQI
24th January 2025
36AQI
25th January 2025
51AQI
26th January 2025
31AQI
27th January 2025
30AQI
28th January 2025
25AQI
29th January 2025
24AQI
30th January 2025
34AQI
31st January 2025
45AQI
1st February 2025
23AQI
2nd February 2025
36AQI
3rd February 2025
67AQI
4th February 2025
24AQI
5th February 2025
22AQI
6th February 2025
34AQI
7th February 2025
29AQI
8th February 2025
42AQI
9th February 2025
42AQI
10th February 2025
42AQI
11th February 2025
48AQI
12th February 2025
45AQI
13th February 2025
43AQI
14th February 2025
50AQI
15th February 2025
58AQI
16th February 2025
42AQI
17th February 2025
25AQI
18th February 2025
26AQI
19th February 2025
27AQI
20th February 2025
26AQI
21st February 2025
28AQI
22nd February 2025
57AQI
23rd February 2025
59AQI
24th February 2025
56AQI
25th February 2025
45AQI
26th February 2025
40AQI
27th February 2025
48AQI
28th February 2025
29AQI
1st March 2025
27AQI
2nd March 2025
28AQI
3rd March 2025
48AQI
4th March 2025
40AQI
5th March 2025
31AQI
6th March 2025
27AQI
7th March 2025
29AQI
8th March 2025
32AQI
9th March 2025
30AQI
10th March 2025
37AQI
11th March 2025
35AQI
12th March 2025
27AQI
13th March 2025
28AQI
14th March 2025
45AQI
15th March 2025
41AQI
16th March 2025
23AQI
17th March 2025
21AQI
18th March 2025
27AQI
19th March 2025
37AQI
20th March 2025
24AQI
21st March 2025
22AQI
22nd March 2025
19AQI
23rd March 2025
19AQI
24th March 2025
24AQI
25th March 2025
21AQI
26th March 2025
21AQI
27th March 2025
37AQI
28th March 2025
52AQI
29th March 2025
53AQI
30th March 2025
44AQI
31st March 2025
21AQI
1st April 2025
18AQI
2nd April 2025
22AQI
3rd April 2025
26AQI
4th April 2025
21AQI
5th April 2025
23AQI
6th April 2025
22AQI
7th April 2025
25AQI
8th April 2025
17AQI
9th April 2025
27AQI
10th April 2025
35AQI
11th April 2025
38AQI
12th April 2025
23AQI
13th April 2025
34AQI
14th April 2025
31AQI
15th April 2025
18AQI
16th April 2025
16AQI
17th April 2025
26AQI
18th April 2025
43AQI
19th April 2025
48AQI
20th April 2025
20AQI
21st April 2025
25AQI
22nd April 2025
18AQI
23rd April 2025
41AQI
24th April 2025
54AQI
25th April 2025
46AQI
26th April 2025
27AQI
27th April 2025
28AQI
28th April 2025
24AQI
29th April 2025
40AQI
30th April 2025
23AQI
1st May 2025
26AQI
2nd May 2025
33AQI
3rd May 2025
18AQI
4th May 2025
20AQI
5th May 2025
25AQI
6th May 2025
34AQI
7th May 2025
38AQI
8th May 2025
20AQI
9th May 2025
21AQI
10th May 2025
35AQI
11th May 2025
25AQI
12th May 2025
30AQI
13th May 2025
26AQI
14th May 2025
22AQI
15th May 2025
28AQI
16th May 2025
35AQI
17th May 2025
27AQI
18th May 2025
17AQI
19th May 2025
17AQI
20th May 2025
18AQI
21st May 2025
19AQI
22nd May 2025
16AQI
23rd May 2025
14AQI
24th May 2025
13AQI
25th May 2025
30AQI
26th May 2025
24AQI
27th May 2025
26AQI
28th May 2025
20AQI
29th May 2025
36AQI
30th May 2025
39AQI
31st May 2025
31AQI
1st June 2025
27AQI
2nd June 2025
33AQI
3rd June 2025
50AQI
4th June 2025
72AQI
5th June 2025
86AQI
6th June 2025
113AQI
7th June 2025
74AQI
8th June 2025
106AQI
9th June 2025
81AQI
10th June 2025
59AQI
11th June 2025
74AQI
12th June 2025
80AQI
13th June 2025
56AQI
14th June 2025
47AQI
15th June 2025
47AQI
16th June 2025
45AQI
17th June 2025
38AQI
18th June 2025
36AQI
19th June 2025
27AQI
20th June 2025
38AQI
21st June 2025
44AQI
22nd June 2025
48AQI
23rd June 2025
54AQI
24th June 2025
57AQI
25th June 2025
53AQI
26th June 2025
51AQI
27th June 2025
47AQI
28th June 2025
31AQI
29th June 2025
33AQI
30th June 2025
35AQI
1st July 2025
34AQI
2nd July 2025
45AQI
3rd July 2025
53AQI
4th July 2025
54AQI
5th July 2025
60AQI
6th July 2025
58AQI
7th July 2025
39AQI
8th July 2025
55AQI
9th July 2025
59AQI
10th July 2025
54AQI
11th July 2025
53AQI
12th July 2025
45AQI
13th July 2025
43AQI
14th July 2025
67AQI
15th July 2025
96AQI
16th July 2025
89AQI
17th July 2025
48AQI
18th July 2025
29AQI
19th July 2025
31AQI
20th July 2025
33AQI
21st July 2025
52AQI
22nd July 2025
30AQI
23rd July 2025
31AQI
24th July 2025
49AQI
25th July 2025
36AQI
26th July 2025
53AQI
27th July 2025
38AQI
28th July 2025
41AQI
29th July 2025
40AQI
30th July 2025
53AQI
31st July 2025
113AQI
1st August 2025
92AQI

34AQI

40AQI

31AQI

29AQI

25AQI

55AQI

51AQI

92AQI

No. of days

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

202538AQI

26
5
23
5
29
2
29
1
31
16
12
2
16
14
1
1
170
40
3

Highest AQI recorded in

August

92AQI

Lowest AQI recorded in

May

25AQI

202436AQI

22
9
17
12
29
2
30
31
29
1
30
1
25
6
30
26
5
28
2
27
4
324
42

Highest AQI recorded in

February

46AQI

Lowest AQI recorded in

November

31AQI

202345AQI

19
12
24
4
24
7
22
8
22
9
8
14
6
1
1
21
9
1
17
14
27
3
28
3
22
7
20
11
254
101
7
1
1

Highest AQI recorded in

June

79AQI

Lowest AQI recorded in

October

33AQI

202239AQI

27
3
1
18
3
1
21
10
29
1
28
3
24
6
20
4
3
26
4
27
4
23
7
25
6
271
51
2

Highest AQI recorded in

June

45AQI

Lowest AQI recorded in

April

33AQI

202137AQI

23
7
20
8
26
5
27
3
28
3
28
2
19
12
20
11
28
2
29
2
23
7
27
4
298
66

Highest AQI recorded in

August

46AQI

Lowest AQI recorded in

May

29AQI

202033AQI

11
1
20
1
18
28
2
25
6
27
4
27
3
30
1
27
3
22
9
235
30

Highest AQI recorded in

December

39AQI

Lowest AQI recorded in

October

26AQI

Most & Least Polluted Years Over the Last 6 Years

Most Polluted Year Recorded
2023(Avg.)
45AQI
Least Polluted Year Recorded
2020(Avg.)
33AQI

Windsor's annual 2025 AQI (38) shows an average percentage change of 1.05% (worsened AQI) compared to previous years: 2020 (33), 2021 (37), 2022 (39), 2023 (45), 2024 (36).