Toronto Downtown, Toronto, 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
Toronto Downtown, Toronto, Ontario, Canada
2021
2022
2023
2024
2025
AQI
.
Days
AQI Trends: Highest and Lowest
Highest AQI recorded on
3rd Aug 2025
90AQILowest AQI recorded on
7th Aug 2024
17AQISame Day Analysis (3rd August ):
On this day, AQI across the 5 years varied significantly: 2025 ranks 1st highest AQI at 90 of Moderate air quality on the same day.
Download 2024 Annual Data
World Air Quality Report
Day & Night AQI Trend: 3rd Aug - 4th Aug 2025
Toronto Downtown, Toronto, Ontario, Canada
AQI
Day
Night
.
5 AM3rd Aug 2025
8 PM
4 AM4th Aug 2025
Day time
Avg. Highest Time
8AM3rd Aug
112AQI
Avg. Lowest Time
3PM3rd Aug
79AQI
Night time
Avg. Highest Time
11PM3rd Aug
112AQI
Avg. Lowest Time
5AM3rd Aug
86AQI
In the last 24 hours,
Toronto Downtown's AQI reached its highest point of 112 at 8 AM during the Day, while the lowest point, 79, was recorded at 3 PM during the Day between 3rd Aug and 4th Aug 2025.
Day & Night AQI Trend : Jul - Aug 2025
Toronto Downtown, Toronto, Ontario, Canada
JulAug
05th - 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 - 03rd03rd - 04th04th
Day
Night
5th Jul 2025485 AMAQI
5th Jul 2025506 AMAQI
5th Jul 2025547 AMAQI
5th Jul 2025568 AMAQI
5th Jul 2025519 AMAQI
5th Jul 20254910 AMAQI
5th Jul 20255111 AMAQI
5th Jul 20255212 PMAQI
5th Jul 2025521 PMAQI
5th Jul 2025522 PMAQI
5th Jul 2025523 PMAQI
5th Jul 2025524 PMAQI
5th Jul 2025495 PMAQI
5th Jul 2025486 PMAQI
5th Jul 2025497 PMAQI
5th Jul 2025498 PMAQI
5th Jul 2025529 PMAQI
5th Jul 20255110 PMAQI
5th Jul 20255111 PMAQI
6th Jul 20255212 AMAQI
6th Jul 2025511 AMAQI
6th Jul 2025542 AMAQI
6th Jul 2025583 AMAQI
6th Jul 2025564 AMAQI
24°C18/32°C
6th Jul 2025585 AMAQI
6th Jul 2025596 AMAQI
6th Jul 2025577 AMAQI
6th Jul 2025498 AMAQI
6th Jul 2025559 AMAQI
6th Jul 20255610 AMAQI
6th Jul 20255511 AMAQI
6th Jul 20255512 PMAQI
6th Jul 2025551 PMAQI
6th Jul 2025552 PMAQI
6th Jul 2025543 PMAQI
6th Jul 2025544 PMAQI
6th Jul 2025545 PMAQI
6th Jul 2025546 PMAQI
6th Jul 2025547 PMAQI
6th Jul 2025548 PMAQI
6th Jul 2025539 PMAQI
6th Jul 20255310 PMAQI
6th Jul 20255311 PMAQI
7th Jul 20255312 AMAQI
7th Jul 2025491 AMAQI
7th Jul 2025342 AMAQI
7th Jul 2025393 AMAQI
7th Jul 2025394 AMAQI
27°C22/33°C
7th Jul 2025375 AMAQI
7th Jul 2025536 AMAQI
7th Jul 2025557 AMAQI
7th Jul 2025528 AMAQI
7th Jul 2025509 AMAQI
7th Jul 20254810 AMAQI
7th Jul 20254911 AMAQI
7th Jul 20254812 PMAQI
7th Jul 2025491 PMAQI
7th Jul 2025482 PMAQI
7th Jul 2025483 PMAQI
7th Jul 2025474 PMAQI
7th Jul 2025455 PMAQI
7th Jul 2025446 PMAQI
7th Jul 2025457 PMAQI
7th Jul 2025448 PMAQI
7th Jul 2025469 PMAQI
7th Jul 20254810 PMAQI
7th Jul 20254611 PMAQI
8th Jul 20254312 AMAQI
8th Jul 2025401 AMAQI
8th Jul 2025302 AMAQI
8th Jul 2025313 AMAQI
8th Jul 2025294 AMAQI
25°C22/30°C
8th Jul 2025325 AMAQI
8th Jul 2025346 AMAQI
8th Jul 2025317 AMAQI
8th Jul 2025308 AMAQI
8th Jul 2025329 AMAQI
8th Jul 20253110 AMAQI
8th Jul 20253211 AMAQI
8th Jul 20253212 PMAQI
8th Jul 2025351 PMAQI
8th Jul 2025332 PMAQI
8th Jul 2025333 PMAQI
8th Jul 2025354 PMAQI
8th Jul 2025355 PMAQI
8th Jul 2025346 PMAQI
8th Jul 2025347 PMAQI
8th Jul 2025348 PMAQI
8th Jul 2025339 PMAQI
8th Jul 20253410 PMAQI
8th Jul 20253511 PMAQI
9th Jul 20253412 AMAQI
9th Jul 2025341 AMAQI
9th Jul 2025362 AMAQI
9th Jul 2025323 AMAQI
9th Jul 2025314 AMAQI
23°C20/26°C
9th Jul 2025355 AMAQI
9th Jul 2025356 AMAQI
9th Jul 2025367 AMAQI
9th Jul 2025398 AMAQI
9th Jul 2025379 AMAQI
9th Jul 20254010 AMAQI
9th Jul 20253911 AMAQI
9th Jul 20254012 PMAQI
9th Jul 2025421 PMAQI
9th Jul 2025422 PMAQI
9th Jul 2025443 PMAQI
9th Jul 2025424 PMAQI
9th Jul 2025395 PMAQI
9th Jul 2025406 PMAQI
9th Jul 2025407 PMAQI
9th Jul 2025388 PMAQI
9th Jul 2025389 PMAQI
9th Jul 20254010 PMAQI
9th Jul 20253711 PMAQI
10th Jul 20253712 AMAQI
10th Jul 2025371 AMAQI
10th Jul 2025372 AMAQI
10th Jul 2025403 AMAQI
10th Jul 2025444 AMAQI
23°C19/28°C
10th Jul 2025485 AMAQI
10th Jul 2025536 AMAQI
10th Jul 2025517 AMAQI
10th Jul 2025448 AMAQI
10th Jul 2025449 AMAQI
10th Jul 20254710 AMAQI
10th Jul 20254811 AMAQI
10th Jul 20254812 PMAQI
10th Jul 2025501 PMAQI
10th Jul 2025482 PMAQI
10th Jul 2025483 PMAQI
10th Jul 2025484 PMAQI
10th Jul 2025485 PMAQI
10th Jul 2025466 PMAQI
10th Jul 2025477 PMAQI
10th Jul 2025458 PMAQI
10th Jul 2025459 PMAQI
10th Jul 20254410 PMAQI
10th Jul 20254811 PMAQI
11th Jul 20254512 AMAQI
11th Jul 2025451 AMAQI
11th Jul 2025462 AMAQI
11th Jul 2025483 AMAQI
11th Jul 2025524 AMAQI
24°C20/28°C
11th Jul 2025535 AMAQI
11th Jul 2025566 AMAQI
11th Jul 2025547 AMAQI
11th Jul 2025558 AMAQI
11th Jul 2025539 AMAQI
11th Jul 20255210 AMAQI
11th Jul 20255311 AMAQI
11th Jul 20255212 PMAQI
11th Jul 2025531 PMAQI
11th Jul 2025542 PMAQI
11th Jul 2025523 PMAQI
11th Jul 2025534 PMAQI
11th Jul 2025525 PMAQI
11th Jul 2025526 PMAQI
11th Jul 2025527 PMAQI
11th Jul 2025528 PMAQI
11th Jul 2025529 PMAQI
11th Jul 20255210 PMAQI
11th Jul 20255111 PMAQI
12th Jul 20255212 AMAQI
12th Jul 2025511 AMAQI
12th Jul 2025562 AMAQI
12th Jul 2025553 AMAQI
12th Jul 2025524 AMAQI
25°C20/31°C
12th Jul 2025505 AMAQI
12th Jul 2025416 AMAQI
12th Jul 2025447 AMAQI
12th Jul 2025428 AMAQI
12th Jul 2025509 AMAQI
12th Jul 20254810 AMAQI
12th Jul 20254611 AMAQI
12th Jul 20254612 PMAQI
12th Jul 2025481 PMAQI
12th Jul 2025472 PMAQI
12th Jul 2025483 PMAQI
12th Jul 2025494 PMAQI
12th Jul 2025495 PMAQI
12th Jul 2025526 PMAQI
12th Jul 2025517 PMAQI
12th Jul 2025508 PMAQI
12th Jul 2025489 PMAQI
12th Jul 20254610 PMAQI
12th Jul 20254611 PMAQI
13th Jul 20254812 AMAQI
13th Jul 2025511 AMAQI
13th Jul 2025502 AMAQI
13th Jul 2025513 AMAQI
13th Jul 2025474 AMAQI
26°C21/33°C
13th Jul 2025415 AMAQI
13th Jul 2025436 AMAQI
13th Jul 2025397 AMAQI
13th Jul 2025428 AMAQI
13th Jul 2025489 AMAQI
13th Jul 20254510 AMAQI
13th Jul 20254811 AMAQI
13th Jul 20254712 PMAQI
13th Jul 2025451 PMAQI
13th Jul 2025422 PMAQI
13th Jul 2025433 PMAQI
13th Jul 2025444 PMAQI
13th Jul 2025475 PMAQI
13th Jul 2025466 PMAQI
13th Jul 2025467 PMAQI
13th Jul 2025468 PMAQI
13th Jul 2025479 PMAQI
13th Jul 20254810 PMAQI
13th Jul 20254611 PMAQI
14th Jul 20254912 AMAQI
14th Jul 2025561 AMAQI
14th Jul 2025502 AMAQI
14th Jul 2025513 AMAQI
14th Jul 2025474 AMAQI
27°C24/30°C
14th Jul 2025355 AMAQI
14th Jul 2025376 AMAQI
14th Jul 2025527 AMAQI
14th Jul 2025478 AMAQI
14th Jul 2025529 AMAQI
14th Jul 20255110 AMAQI
14th Jul 20255211 AMAQI
14th Jul 20255212 PMAQI
14th Jul 2025521 PMAQI
14th Jul 2025522 PMAQI
14th Jul 2025543 PMAQI
14th Jul 2025514 PMAQI
14th Jul 2025485 PMAQI
14th Jul 2025506 PMAQI
14th Jul 2025517 PMAQI
14th Jul 2025518 PMAQI
14th Jul 2025529 PMAQI
14th Jul 20255110 PMAQI
14th Jul 20254811 PMAQI
15th Jul 20254912 AMAQI
15th Jul 2025481 AMAQI
15th Jul 2025522 AMAQI
15th Jul 2025563 AMAQI
15th Jul 2025564 AMAQI
27°C22/32°C
15th Jul 2025555 AMAQI
15th Jul 2025606 AMAQI
15th Jul 2025607 AMAQI
15th Jul 2025628 AMAQI
15th Jul 2025609 AMAQI
15th Jul 20255810 AMAQI
15th Jul 20256011 AMAQI
15th Jul 20256012 PMAQI
15th Jul 2025581 PMAQI
15th Jul 2025572 PMAQI
15th Jul 2025583 PMAQI
15th Jul 2025544 PMAQI
15th Jul 2025565 PMAQI
15th Jul 2025556 PMAQI
15th Jul 2025567 PMAQI
15th Jul 2025558 PMAQI
15th Jul 2025549 PMAQI
15th Jul 20255510 PMAQI
15th Jul 20255511 PMAQI
16th Jul 20255412 AMAQI
16th Jul 2025531 AMAQI
16th Jul 2025432 AMAQI
16th Jul 2025523 AMAQI
16th Jul 2025524 AMAQI
27°C21/33°C
16th Jul 2025535 AMAQI
16th Jul 2025516 AMAQI
16th Jul 2025547 AMAQI
16th Jul 2025528 AMAQI
16th Jul 2025549 AMAQI
16th Jul 20255510 AMAQI
16th Jul 20255311 AMAQI
16th Jul 20255412 PMAQI
16th Jul 2025601 PMAQI
16th Jul 2025612 PMAQI
16th Jul 2025573 PMAQI
16th Jul 2025574 PMAQI
16th Jul 2025585 PMAQI
16th Jul 2025576 PMAQI
16th Jul 2025567 PMAQI
16th Jul 2025558 PMAQI
16th Jul 2025559 PMAQI
16th Jul 20255510 PMAQI
16th Jul 20255411 PMAQI
17th Jul 20255512 AMAQI
17th Jul 2025551 AMAQI
17th Jul 2025332 AMAQI
17th Jul 2025373 AMAQI
17th Jul 2025364 AMAQI
27°C20/34°C
17th Jul 2025365 AMAQI
17th Jul 2025356 AMAQI
17th Jul 2025347 AMAQI
17th Jul 2025388 AMAQI
17th Jul 2025419 AMAQI
17th Jul 20254110 AMAQI
17th Jul 20254011 AMAQI
17th Jul 20254312 PMAQI
17th Jul 2025441 PMAQI
17th Jul 2025432 PMAQI
17th Jul 2025383 PMAQI
17th Jul 2025384 PMAQI
17th Jul 2025405 PMAQI
17th Jul 2025396 PMAQI
17th Jul 2025397 PMAQI
17th Jul 2025398 PMAQI
17th Jul 2025379 PMAQI
17th Jul 20253810 PMAQI
17th Jul 20253611 PMAQI
18th Jul 20253812 AMAQI
18th Jul 2025341 AMAQI
18th Jul 2025212 AMAQI
18th Jul 2025243 AMAQI
18th Jul 2025214 AMAQI
25°C19/31°C
18th Jul 2025245 AMAQI
18th Jul 2025226 AMAQI
18th Jul 2025217 AMAQI
18th Jul 2025228 AMAQI
18th Jul 2025229 AMAQI
18th Jul 20252210 AMAQI
18th Jul 20252311 AMAQI
18th Jul 20252312 PMAQI
18th Jul 2025241 PMAQI
18th Jul 2025232 PMAQI
18th Jul 2025233 PMAQI
18th Jul 2025234 PMAQI
18th Jul 2025235 PMAQI
18th Jul 2025246 PMAQI
18th Jul 2025247 PMAQI
18th Jul 2025248 PMAQI
18th Jul 2025239 PMAQI
18th Jul 20252310 PMAQI
18th Jul 20252411 PMAQI
19th Jul 20252712 AMAQI
19th Jul 2025261 AMAQI
19th Jul 2025272 AMAQI
19th Jul 2025273 AMAQI
19th Jul 2025284 AMAQI
21°C15/26°C
19th Jul 2025285 AMAQI
19th Jul 2025336 AMAQI
19th Jul 2025427 AMAQI
19th Jul 2025418 AMAQI
19th Jul 2025369 AMAQI
19th Jul 20253510 AMAQI
19th Jul 20253411 AMAQI
19th Jul 20253412 PMAQI
19th Jul 2025321 PMAQI
19th Jul 2025302 PMAQI
19th Jul 2025293 PMAQI
19th Jul 2025304 PMAQI
19th Jul 2025305 PMAQI
19th Jul 2025326 PMAQI
19th Jul 2025337 PMAQI
19th Jul 2025338 PMAQI
19th Jul 2025339 PMAQI
19th Jul 20253310 PMAQI
19th Jul 20253011 PMAQI
20th Jul 20253112 AMAQI
20th Jul 2025311 AMAQI
20th Jul 2025242 AMAQI
20th Jul 2025243 AMAQI
20th Jul 2025254 AMAQI
23°C17/29°C
20th Jul 2025255 AMAQI
20th Jul 2025286 AMAQI
20th Jul 2025287 AMAQI
20th Jul 2025258 AMAQI
20th Jul 2025289 AMAQI
20th Jul 20252610 AMAQI
20th Jul 20252811 AMAQI
20th Jul 20252812 PMAQI
20th Jul 2025261 PMAQI
20th Jul 2025252 PMAQI
20th Jul 2025303 PMAQI
20th Jul 2025304 PMAQI
20th Jul 2025285 PMAQI
20th Jul 2025306 PMAQI
20th Jul 2025297 PMAQI
20th Jul 2025308 PMAQI
20th Jul 2025309 PMAQI
20th Jul 20253210 PMAQI
20th Jul 20253511 PMAQI
21st Jul 20253412 AMAQI
21st Jul 2025321 AMAQI
21st Jul 2025292 AMAQI
21st Jul 2025373 AMAQI
21st Jul 2025544 AMAQI
24°C21/28°C
21st Jul 2025595 AMAQI
21st Jul 2025586 AMAQI
21st Jul 2025547 AMAQI
21st Jul 2025488 AMAQI
21st Jul 2025419 AMAQI
21st Jul 20253610 AMAQI
21st Jul 20253411 AMAQI
21st Jul 20253312 PMAQI
21st Jul 2025341 PMAQI
21st Jul 2025342 PMAQI
21st Jul 2025333 PMAQI
21st Jul 2025344 PMAQI
21st Jul 2025365 PMAQI
21st Jul 2025366 PMAQI
21st Jul 2025377 PMAQI
21st Jul 2025378 PMAQI
21st Jul 2025409 PMAQI
21st Jul 20253910 PMAQI
21st Jul 20253611 PMAQI
22nd Jul 20253712 AMAQI
22nd Jul 2025361 AMAQI
22nd Jul 2025212 AMAQI
22nd Jul 2025233 AMAQI
22nd Jul 2025234 AMAQI
21°C17/26°C
22nd Jul 2025235 AMAQI
22nd Jul 2025246 AMAQI
22nd Jul 2025207 AMAQI
22nd Jul 2025238 AMAQI
22nd Jul 2025239 AMAQI
22nd Jul 20252310 AMAQI
22nd Jul 20252311 AMAQI
22nd Jul 20252312 PMAQI
22nd Jul 2025231 PMAQI
22nd Jul 2025242 PMAQI
22nd Jul 2025223 PMAQI
22nd Jul 2025244 PMAQI
22nd Jul 2025245 PMAQI
22nd Jul 2025246 PMAQI
22nd Jul 2025247 PMAQI
22nd Jul 2025248 PMAQI
22nd Jul 2025249 PMAQI
22nd Jul 20252410 PMAQI
22nd Jul 20252411 PMAQI
23rd Jul 20252412 AMAQI
23rd Jul 2025231 AMAQI
23rd Jul 2025242 AMAQI
23rd Jul 2025183 AMAQI
23rd Jul 2025204 AMAQI
20°C15/26°C
23rd Jul 2025205 AMAQI
23rd Jul 2025206 AMAQI
23rd Jul 2025207 AMAQI
23rd Jul 2025218 AMAQI
23rd Jul 2025229 AMAQI
23rd Jul 20252210 AMAQI
23rd Jul 20252211 AMAQI
23rd Jul 20252212 PMAQI
23rd Jul 2025221 PMAQI
23rd Jul 2025222 PMAQI
23rd Jul 2025233 PMAQI
23rd Jul 2025254 PMAQI
23rd Jul 2025255 PMAQI
23rd Jul 2025266 PMAQI
23rd Jul 2025247 PMAQI
23rd Jul 2025258 PMAQI
23rd Jul 2025249 PMAQI
23rd Jul 20252410 PMAQI
23rd Jul 20252511 PMAQI
24th Jul 20252412 AMAQI
24th Jul 2025241 AMAQI
24th Jul 2025242 AMAQI
24th Jul 2025283 AMAQI
24th Jul 2025304 AMAQI
23°C19/29°C
24th Jul 2025355 AMAQI
24th Jul 2025366 AMAQI
24th Jul 2025357 AMAQI
24th Jul 2025348 AMAQI
24th Jul 2025349 AMAQI
24th Jul 20253310 AMAQI
24th Jul 20253511 AMAQI
24th Jul 20253412 PMAQI
24th Jul 2025361 PMAQI
24th Jul 2025362 PMAQI
24th Jul 2025363 PMAQI
24th Jul 2025354 PMAQI
24th Jul 2025385 PMAQI
24th Jul 2025376 PMAQI
24th Jul 2025357 PMAQI
24th Jul 2025368 PMAQI
24th Jul 2025349 PMAQI
24th Jul 20253610 PMAQI
24th Jul 20253611 PMAQI
25th Jul 20253612 AMAQI
25th Jul 2025361 AMAQI
25th Jul 2025322 AMAQI
25th Jul 2025313 AMAQI
25th Jul 2025294 AMAQI
26°C20/33°C
25th Jul 2025305 AMAQI
25th Jul 2025276 AMAQI
25th Jul 2025277 AMAQI
25th Jul 2025278 AMAQI
25th Jul 2025309 AMAQI
25th Jul 20253310 AMAQI
25th Jul 20253511 AMAQI
25th Jul 20253412 PMAQI
25th Jul 2025351 PMAQI
25th Jul 2025342 PMAQI
25th Jul 2025343 PMAQI
25th Jul 2025344 PMAQI
25th Jul 2025345 PMAQI
25th Jul 2025346 PMAQI
25th Jul 2025357 PMAQI
25th Jul 2025368 PMAQI
25th Jul 2025349 PMAQI
25th Jul 20253410 PMAQI
25th Jul 20253611 PMAQI
26th Jul 20253512 AMAQI
26th Jul 2025341 AMAQI
26th Jul 2025552 AMAQI
26th Jul 2025573 AMAQI
26th Jul 2025604 AMAQI
27°C23/32°C
26th Jul 2025555 AMAQI
26th Jul 2025536 AMAQI
26th Jul 2025577 AMAQI
26th Jul 2025528 AMAQI
26th Jul 2025549 AMAQI
26th Jul 20255510 AMAQI
26th Jul 20255711 AMAQI
26th Jul 20255612 PMAQI
26th Jul 2025561 PMAQI
26th Jul 2025562 PMAQI
26th Jul 2025543 PMAQI
26th Jul 2025524 PMAQI
26th Jul 2025535 PMAQI
26th Jul 2025546 PMAQI
26th Jul 2025547 PMAQI
26th Jul 2025548 PMAQI
26th Jul 2025529 PMAQI
26th Jul 20255110 PMAQI
26th Jul 20255011 PMAQI
27th Jul 20255012 AMAQI
27th Jul 2025481 AMAQI
27th Jul 2025352 AMAQI
27th Jul 2025423 AMAQI
27th Jul 2025444 AMAQI
24°C20/28°C
27th Jul 2025455 AMAQI
27th Jul 2025446 AMAQI
27th Jul 2025427 AMAQI
27th Jul 2025418 AMAQI
27th Jul 2025439 AMAQI
27th Jul 20254410 AMAQI
27th Jul 20254511 AMAQI
27th Jul 20255112 PMAQI
27th Jul 2025501 PMAQI
27th Jul 2025512 PMAQI
27th Jul 2025533 PMAQI
27th Jul 2025514 PMAQI
27th Jul 2025485 PMAQI
27th Jul 2025506 PMAQI
27th Jul 2025507 PMAQI
27th Jul 2025508 PMAQI
27th Jul 2025509 PMAQI
27th Jul 20254810 PMAQI
27th Jul 20254911 PMAQI
28th Jul 20254912 AMAQI
28th Jul 2025451 AMAQI
28th Jul 2025382 AMAQI
28th Jul 2025373 AMAQI
28th Jul 2025384 AMAQI
28°C23/34°C
28th Jul 2025385 AMAQI
28th Jul 2025396 AMAQI
28th Jul 2025427 AMAQI
28th Jul 2025448 AMAQI
28th Jul 2025469 AMAQI
28th Jul 20254810 AMAQI
28th Jul 20255211 AMAQI
28th Jul 20255012 PMAQI
28th Jul 2025451 PMAQI
28th Jul 2025472 PMAQI
28th Jul 2025513 PMAQI
28th Jul 2025534 PMAQI
28th Jul 2025515 PMAQI
28th Jul 2025506 PMAQI
28th Jul 2025507 PMAQI
28th Jul 2025518 PMAQI
28th Jul 2025509 PMAQI
28th Jul 20255010 PMAQI
28th Jul 20255011 PMAQI
29th Jul 20254612 AMAQI
29th Jul 2025451 AMAQI
29th Jul 2025362 AMAQI
29th Jul 2025373 AMAQI
29th Jul 2025354 AMAQI
27°C21/34°C
29th Jul 2025365 AMAQI
29th Jul 2025346 AMAQI
29th Jul 2025367 AMAQI
29th Jul 2025378 AMAQI
29th Jul 2025399 AMAQI
29th Jul 20254010 AMAQI
29th Jul 20254011 AMAQI
29th Jul 20254412 PMAQI
29th Jul 2025451 PMAQI
29th Jul 2025472 PMAQI
29th Jul 2025503 PMAQI
29th Jul 2025474 PMAQI
29th Jul 2025475 PMAQI
29th Jul 2025476 PMAQI
29th Jul 2025457 PMAQI
29th Jul 2025458 PMAQI
29th Jul 2025459 PMAQI
29th Jul 20254510 PMAQI
29th Jul 20254311 PMAQI
30th Jul 20254212 AMAQI
30th Jul 2025371 AMAQI
30th Jul 2025262 AMAQI
30th Jul 2025403 AMAQI
30th Jul 2025534 AMAQI
28°C23/33°C
30th Jul 2025525 AMAQI
30th Jul 2025336 AMAQI
30th Jul 2025307 AMAQI
30th Jul 2025368 AMAQI
30th Jul 2025469 AMAQI
30th Jul 20254810 AMAQI
30th Jul 20254711 AMAQI
30th Jul 20255012 PMAQI
30th Jul 2025511 PMAQI
30th Jul 2025422 PMAQI
30th Jul 2025443 PMAQI
30th Jul 2025534 PMAQI
30th Jul 2025535 PMAQI
30th Jul 2025536 PMAQI
30th Jul 2025537 PMAQI
30th Jul 2025538 PMAQI
30th Jul 2025539 PMAQI
30th Jul 20255310 PMAQI
30th Jul 20255011 PMAQI
31st Jul 20254712 AMAQI
31st Jul 2025511 AMAQI
31st Jul 2025602 AMAQI
31st Jul 2025633 AMAQI
31st Jul 2025634 AMAQI
26°C22/33°C
31st Jul 2025695 AMAQI
31st Jul 2025696 AMAQI
31st Jul 2025637 AMAQI
31st Jul 2025948 AMAQI
31st Jul 20251029 AMAQI
31st Jul 20258110 AMAQI
31st Jul 20256211 AMAQI
31st Jul 202510412 PMAQI
31st Jul 20251441 PMAQI
31st Jul 20251222 PMAQI
31st Jul 2025963 PMAQI
31st Jul 2025844 PMAQI
31st Jul 2025845 PMAQI
31st Jul 2025826 PMAQI
31st Jul 2025857 PMAQI
31st Jul 2025868 PMAQI
31st Jul 20251149 PMAQI
31st Jul 20259310 PMAQI
31st Jul 20258511 PMAQI
1st Aug 20258712 AMAQI
1st Aug 2025811 AMAQI
1st Aug 2025842 AMAQI
1st Aug 2025743 AMAQI
1st Aug 2025634 AMAQI
22°C19/26°C
1st Aug 2025705 AMAQI
1st Aug 2025656 AMAQI
1st Aug 2025597 AMAQI
1st Aug 2025548 AMAQI
1st Aug 2025489 AMAQI
1st Aug 20254610 AMAQI
1st Aug 20254011 AMAQI
1st Aug 20253212 PMAQI
1st Aug 2025251 PMAQI
1st Aug 2025262 PMAQI
1st Aug 2025273 PMAQI
1st Aug 2025244 PMAQI
1st Aug 2025245 PMAQI
1st Aug 2025226 PMAQI
1st Aug 2025237 PMAQI
1st Aug 2025238 PMAQI
1st Aug 2025469 PMAQI
1st Aug 20253910 PMAQI
1st Aug 20252511 PMAQI
2nd Aug 20252412 AMAQI
2nd Aug 2025301 AMAQI
2nd Aug 2025322 AMAQI
2nd Aug 2025373 AMAQI
2nd Aug 2025324 AMAQI
22°C18/27°C
2nd Aug 2025265 AMAQI
2nd Aug 2025266 AMAQI
2nd Aug 2025247 AMAQI
2nd Aug 2025268 AMAQI
2nd Aug 2025279 AMAQI
2nd Aug 20253310 AMAQI
2nd Aug 20253411 AMAQI
2nd Aug 20253912 PMAQI
2nd Aug 2025401 PMAQI
2nd Aug 2025342 PMAQI
2nd Aug 2025403 PMAQI
2nd Aug 2025484 PMAQI
2nd Aug 2025495 PMAQI
2nd Aug 2025506 PMAQI
2nd Aug 2025547 PMAQI
2nd Aug 2025578 PMAQI
2nd Aug 2025389 PMAQI
2nd Aug 20254710 PMAQI
2nd Aug 20257811 PMAQI
3rd Aug 20258212 AMAQI
3rd Aug 2025871 AMAQI
3rd Aug 2025882 AMAQI
3rd Aug 2025903 AMAQI
3rd Aug 2025894 AMAQI
23°C16/29°C
3rd Aug 2025865 AMAQI
3rd Aug 2025946 AMAQI
3rd Aug 20251027 AMAQI
3rd Aug 20251128 AMAQI
3rd Aug 20251019 AMAQI
3rd Aug 202510410 AMAQI
3rd Aug 202510211 AMAQI
3rd Aug 20258912 PMAQI
3rd Aug 2025841 PMAQI
3rd Aug 2025852 PMAQI
3rd Aug 2025793 PMAQI
3rd Aug 2025874 PMAQI
3rd Aug 2025965 PMAQI
3rd Aug 2025846 PMAQI
3rd Aug 2025877 PMAQI
3rd Aug 2025808 PMAQI
3rd Aug 2025929 PMAQI
3rd Aug 202510510 PMAQI
3rd Aug 202511211 PMAQI
4th Aug 202511112 AMAQI
4th Aug 2025871 AMAQI
4th Aug 2025912 AMAQI
4th Aug 2025873 AMAQI
4th Aug 2025964 AMAQI
25°C19/31°C
4th Aug 2025845 AMAQI
5 AM4th Aug 2025836 AMAQI
4th Aug 2025827 AMAQI
4th Aug 2025868 AMAQI
4th Aug 20251129 AMAQI
4th Aug 202513010 AMAQI
4th Aug 202513611 AMAQI
4th Aug 202514312 PMAQI
12 PM4th Aug 20251401 PMAQI
4th Aug 20251242 PMAQI
4th Aug 20251143 PMAQI
4th Aug 20251124 PMAQI
4th Aug 20251125 PMAQI
8 PM
12 AM
4 AM
--°C/°C
Day time
Avg. Highest Time
5 AM - 5 PM
47AQI
13 hours / Day
390 hours / Month
Avg. Lowest Time
5 AM - 8 PM
47AQI
16 hours / Day
480 hours / Month
In the last 30 days, during the daytime, the highest AQI was between 5 AM to 5 PM (Avg. 47), while the lowest AQI was between 5 AM to 8 PM (Avg. 47).
Night time
Avg. Highest Time
12 AM - 11 PM
45AQI
8 hours / Day
240 hours / Month
Avg. Lowest Time
12 AM - 11 PM
45AQI
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. 45), while the lowest AQI was between 12 AM to 11 PM (Avg. 45).
2025 Days Vs Air Quality
Toronto Downtown, Toronto, Ontario, Canada
2025
87%
188
13%
27
Total number of days with different AQI categories in last 216 days in 2025 (149 days remaining)
Good
188 DaysModerate
27 DaysPoor
0 DaysUnhealthy
0 DaysSevere
0 DaysHazardous
0 DaysUnder WHO’s Safe Air Quality Limits: 87%
Health Risk Level:
Low
In 2025, 87% of 216 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
Toronto Downtown, Toronto, 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
22AQI
22AQI
2nd January 2025
20AQI
20AQI
3rd January 2025
22AQI
22AQI
4th January 2025
25AQI
25AQI
5th January 2025
24AQI
24AQI
6th January 2025
20AQI
20AQI
7th January 2025
19AQI
19AQI
8th January 2025
21AQI
21AQI
9th January 2025
23AQI
23AQI
10th January 2025
42AQI
42AQI
11th January 2025
66AQI
66AQI
12th January 2025
50AQI
50AQI
13th January 2025
39AQI
39AQI
14th January 2025
24AQI
24AQI
15th January 2025
28AQI
28AQI
16th January 2025
57AQI
57AQI
17th January 2025
43AQI
43AQI
18th January 2025
27AQI
27AQI
19th January 2025
23AQI
23AQI
20th January 2025
23AQI
23AQI
21st January 2025
28AQI
28AQI
22nd January 2025
33AQI
33AQI
23rd January 2025
44AQI
44AQI
24th January 2025
38AQI
38AQI
25th January 2025
51AQI
51AQI
26th January 2025
33AQI
33AQI
27th January 2025
27AQI
27AQI
28th January 2025
26AQI
26AQI
29th January 2025
27AQI
27AQI
30th January 2025
29AQI
29AQI
31st January 2025
66AQI
66AQI
1st February 2025
24AQI
24AQI
2nd February 2025
27AQI
27AQI
3rd February 2025
61AQI
61AQI
4th February 2025
22AQI
22AQI
5th February 2025
25AQI
25AQI
6th February 2025
40AQI
40AQI
7th February 2025
27AQI
27AQI
8th February 2025
41AQI
41AQI
9th February 2025
30AQI
30AQI
10th February 2025
30AQI
30AQI
11th February 2025
44AQI
44AQI
12th February 2025
26AQI
26AQI
13th February 2025
26AQI
26AQI
14th February 2025
28AQI
28AQI
15th February 2025
37AQI
37AQI
16th February 2025
25AQI
25AQI
17th February 2025
24AQI
24AQI
18th February 2025
25AQI
25AQI
19th February 2025
24AQI
24AQI
20th February 2025
22AQI
22AQI
21st February 2025
27AQI
27AQI
22nd February 2025
46AQI
46AQI
23rd February 2025
61AQI
61AQI
24th February 2025
60AQI
60AQI
25th February 2025
64AQI
64AQI
26th February 2025
31AQI
31AQI
27th February 2025
37AQI
37AQI
28th February 2025
25AQI
25AQI
1st March 2025
27AQI
27AQI
2nd March 2025
33AQI
33AQI
3rd March 2025
33AQI
33AQI
4th March 2025
45AQI
45AQI
5th March 2025
47AQI
47AQI
6th March 2025
24AQI
24AQI
7th March 2025
29AQI
29AQI
8th March 2025
32AQI
32AQI
9th March 2025
29AQI
29AQI
10th March 2025
42AQI
42AQI
11th March 2025
37AQI
37AQI
12th March 2025
25AQI
25AQI
13th March 2025
34AQI
34AQI
14th March 2025
63AQI
63AQI
15th March 2025
58AQI
58AQI
16th March 2025
34AQI
34AQI
17th March 2025
23AQI
23AQI
18th March 2025
33AQI
33AQI
19th March 2025
41AQI
41AQI
20th March 2025
29AQI
29AQI
21st March 2025
27AQI
27AQI
22nd March 2025
22AQI
22AQI
23rd March 2025
26AQI
26AQI
24th March 2025
29AQI
29AQI
25th March 2025
19AQI
19AQI
26th March 2025
24AQI
24AQI
27th March 2025
29AQI
29AQI
28th March 2025
22AQI
22AQI
29th March 2025
18AQI
18AQI
30th March 2025
31AQI
31AQI
31st March 2025
31AQI
31AQI
1st April 2025
18AQI
18AQI
2nd April 2025
18AQI
18AQI
3rd April 2025
33AQI
33AQI
4th April 2025
26AQI
26AQI
5th April 2025
28AQI
28AQI
6th April 2025
19AQI
19AQI
7th April 2025
21AQI
21AQI
8th April 2025
15AQI
15AQI
9th April 2025
24AQI
24AQI
10th April 2025
40AQI
40AQI
11th April 2025
32AQI
32AQI
12th April 2025
39AQI
39AQI
13th April 2025
36AQI
36AQI
14th April 2025
35AQI
35AQI
15th April 2025
23AQI
23AQI
16th April 2025
18AQI
18AQI
17th April 2025
26AQI
26AQI
18th April 2025
41AQI
41AQI
19th April 2025
46AQI
46AQI
20th April 2025
17AQI
17AQI
21st April 2025
21AQI
21AQI
22nd April 2025
19AQI
19AQI
23rd April 2025
23AQI
23AQI
24th April 2025
41AQI
41AQI
25th April 2025
38AQI
38AQI
26th April 2025
34AQI
34AQI
27th April 2025
15AQI
15AQI
28th April 2025
32AQI
32AQI
29th April 2025
36AQI
36AQI
30th April 2025
16AQI
16AQI
1st May 2025
23AQI
23AQI
2nd May 2025
30AQI
30AQI
3rd May 2025
17AQI
17AQI
4th May 2025
19AQI
19AQI
5th May 2025
24AQI
24AQI
6th May 2025
23AQI
23AQI
7th May 2025
34AQI
34AQI
8th May 2025
17AQI
17AQI
9th May 2025
21AQI
21AQI
10th May 2025
28AQI
28AQI
11th May 2025
28AQI
28AQI
12th May 2025
28AQI
28AQI
13th May 2025
39AQI
39AQI
14th May 2025
25AQI
25AQI
15th May 2025
31AQI
31AQI
16th May 2025
31AQI
31AQI
17th May 2025
31AQI
31AQI
18th May 2025
21AQI
21AQI
19th May 2025
17AQI
17AQI
20th May 2025
17AQI
17AQI
21st May 2025
17AQI
17AQI
22nd May 2025
17AQI
17AQI
23rd May 2025
20AQI
20AQI
24th May 2025
18AQI
18AQI
25th May 2025
20AQI
20AQI
26th May 2025
26AQI
26AQI
27th May 2025
35AQI
35AQI
28th May 2025
26AQI
26AQI
29th May 2025
28AQI
28AQI
30th May 2025
34AQI
34AQI
31st May 2025
27AQI
27AQI
1st June 2025
24AQI
24AQI
2nd June 2025
23AQI
23AQI
3rd June 2025
43AQI
43AQI
4th June 2025
57AQI
57AQI
5th June 2025
48AQI
48AQI
6th June 2025
61AQI
61AQI
7th June 2025
61AQI
61AQI
8th June 2025
76AQI
76AQI
9th June 2025
66AQI
66AQI
10th June 2025
50AQI
50AQI
11th June 2025
57AQI
57AQI
12th June 2025
64AQI
64AQI
13th June 2025
44AQI
44AQI
14th June 2025
38AQI
38AQI
15th June 2025
41AQI
41AQI
16th June 2025
42AQI
42AQI
17th June 2025
42AQI
42AQI
18th June 2025
46AQI
46AQI
19th June 2025
42AQI
42AQI
20th June 2025
34AQI
34AQI
21st June 2025
47AQI
47AQI
22nd June 2025
52AQI
52AQI
23rd June 2025
55AQI
55AQI
24th June 2025
56AQI
56AQI
25th June 2025
47AQI
47AQI
26th June 2025
42AQI
42AQI
27th June 2025
42AQI
42AQI
28th June 2025
35AQI
35AQI
29th June 2025
37AQI
37AQI
30th June 2025
39AQI
39AQI
1st July 2025
42AQI
42AQI
2nd July 2025
38AQI
38AQI
3rd July 2025
47AQI
47AQI
4th July 2025
40AQI
40AQI
5th July 2025
49AQI
49AQI
6th July 2025
54AQI
54AQI
7th July 2025
47AQI
47AQI
8th July 2025
35AQI
35AQI
9th July 2025
37AQI
37AQI
10th July 2025
44AQI
44AQI
11th July 2025
51AQI
51AQI
12th July 2025
49AQI
49AQI
13th July 2025
46AQI
46AQI
14th July 2025
49AQI
49AQI
15th July 2025
55AQI
55AQI
16th July 2025
54AQI
54AQI
17th July 2025
42AQI
42AQI
18th July 2025
26AQI
26AQI
19th July 2025
31AQI
31AQI
20th July 2025
29AQI
29AQI
21st July 2025
39AQI
39AQI
22nd July 2025
27AQI
27AQI
23rd July 2025
23AQI
23AQI
24th July 2025
32AQI
32AQI
25th July 2025
33AQI
33AQI
26th July 2025
50AQI
50AQI
27th July 2025
48AQI
48AQI
28th July 2025
47AQI
47AQI
29th July 2025
43AQI
43AQI
30th July 2025
45AQI
45AQI
31st July 2025
77AQI
77AQI
1st August 2025
53AQI
53AQI
2nd August 2025
37AQI
37AQI
3rd August 2025
90AQI
90AQI
33AQI
34AQI
32AQI
28AQI
25AQI
47AQI
43AQI
60AQI
No. of days
Jan.Feb.Mar.Apr.MayJun.Jul.Aug.Sep.Oct.Nov.Dec.Total Days
202535AQI
27
4
24
4
29
2
30
31
20
10
26
5
1
2
188
27
Highest AQI recorded in
August60AQI
Lowest AQI recorded in
May25AQI
202432AQI
28
3
26
3
29
2
29
1
29
2
25
3
23
8
25
6
29
1
29
2
30
29
2
331
33
Highest AQI recorded in
July40AQI
Lowest AQI recorded in
November24AQI
202337AQI
26
5
24
4
28
3
25
5
25
6
15
13
1
1
23
8
26
5
29
1
29
2
28
1
25
6
303
59
1
1
Highest AQI recorded in
June58AQI
Lowest AQI recorded in
November29AQI
202235AQI
29
2
21
26
5
23
1
25
6
27
3
18
5
1
26
1
24
7
24
6
29
2
273
38
Highest AQI recorded in
November40AQI
Lowest AQI recorded in
August18AQI
202136AQI
23
7
25
3
24
7
26
4
25
6
26
4
21
7
2
1
24
7
30
31
27
3
29
2
311
50
2
1
Highest AQI recorded in
July50AQI
Lowest AQI recorded in
October26AQI
202032AQI
12
20
1
15
3
26
4
29
2
30
1
26
4
30
1
20
5
26
5
234
26
Highest AQI recorded in
June38AQI
Lowest AQI recorded in
October27AQI
Most & Least Polluted Years Over the Last 6 Years
Most Polluted Year Recorded
2023(Avg.)
37AQILeast Polluted Year Recorded
2024(Avg.)
32AQIToronto Downtown's annual 2025 AQI (35) shows an average percentage change of 1.5% (worsened AQI) compared to previous years: 2020 (32), 2021 (36), 2022 (35), 2023 (37), 2024 (32).
