Country Background
HistoryAQIPM₂.₅PM₁₀COSO₂NO₂O₃

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

2022
2023
2024
2025
2026
AQI
.
Days

AQI Trends: Highest and Lowest

Highest AQI recorded on
4th Aug 2025
110AQI
Lowest AQI recorded on
7th Aug 2024
17AQI

Same Day Analysis (13th August):
On this day, AQI across the 5 years varied significantly: 2026 ranks 1st highest AQI at 47 of Good air quality on the same day.

Day & Night AQI Trend: 12th Aug - 13th Aug 2026

Toronto Downtown, Toronto, Ontario, Canada

AQI
Day
Night
.

6 AM12th Aug 2026

8 PM

5 AM13th Aug 2026

Day time
Avg. Highest Time
2PM12th Aug

54AQI

Avg. Lowest Time
7AM12th Aug

25AQI

Night time
Avg. Highest Time
2AM13th Aug

58AQI

Avg. Lowest Time
5AM13th Aug

51AQI

In the last 24 hours,

Toronto Downtown's AQI reached its highest point of 58 at 2 AM during the Night, while the lowest point, 25, was recorded at 7 AM during the Day between 12th Aug and 13th Aug 2026.

Day & Night AQI Trend : Jul - Aug 2026

Toronto Downtown, Toronto, Ontario, Canada

JulAug
15th - 16th16th - 17th17th - 18th18th - 19th19th - 20th20th - 21st21st - 22nd22nd - 23rd23rd - 24th24th - 25th25th - 26th26th - 27th27th - 28th28th - 29th29th - 30th30th - 31st31st - 01st01st - 02nd02nd - 03rd03rd - 04th04th - 05th05th - 06th06th - 07th07th - 08th08th - 09th09th - 10th10th - 11th11th - 12th12th - 13th13th
Day
Night
15th Jul 2026586 AMAQI
15th Jul 2026527 AMAQI
15th Jul 2026608 AMAQI
15th Jul 2026699 AMAQI
15th Jul 20266610 AMAQI
15th Jul 20265711 AMAQI
15th Jul 20265312 PMAQI
15th Jul 2026531 PMAQI
15th Jul 2026532 PMAQI
15th Jul 2026543 PMAQI
15th Jul 20261244 PMAQI
15th Jul 2026855 PMAQI
15th Jul 2026696 PMAQI
15th Jul 2026517 PMAQI
15th Jul 2026528 PMAQI
15th Jul 2026519 PMAQI
15th Jul 20265210 PMAQI
15th Jul 20265011 PMAQI
16th Jul 20265212 AMAQI
16th Jul 2026541 AMAQI
16th Jul 2026552 AMAQI
16th Jul 2026643 AMAQI
16th Jul 2026744 AMAQI
16th Jul 2026865 AMAQI

28°C22/33°C

16th Jul 2026886 AMAQI
16th Jul 2026827 AMAQI
16th Jul 2026838 AMAQI
16th Jul 2026809 AMAQI
16th Jul 20269010 AMAQI
16th Jul 20269611 AMAQI
16th Jul 20268512 PMAQI
16th Jul 2026881 PMAQI
16th Jul 2026902 PMAQI
16th Jul 2026873 PMAQI
16th Jul 2026884 PMAQI
16th Jul 2026835 PMAQI
16th Jul 2026826 PMAQI
16th Jul 2026787 PMAQI
16th Jul 2026848 PMAQI
16th Jul 2026929 PMAQI
16th Jul 20268510 PMAQI
16th Jul 20267811 PMAQI
17th Jul 20268212 AMAQI
17th Jul 20261221 AMAQI
17th Jul 20261582 AMAQI
17th Jul 20261503 AMAQI
17th Jul 20261244 AMAQI
17th Jul 2026685 AMAQI

25°C19/31°C

17th Jul 2026676 AMAQI
17th Jul 20261197 AMAQI
17th Jul 20261618 AMAQI
17th Jul 20261129 AMAQI
17th Jul 20267310 AMAQI
17th Jul 20267211 AMAQI
17th Jul 20267112 PMAQI
17th Jul 2026661 PMAQI
17th Jul 2026732 PMAQI
17th Jul 2026683 PMAQI
17th Jul 2026644 PMAQI
17th Jul 2026685 PMAQI
17th Jul 2026646 PMAQI
17th Jul 2026657 PMAQI
17th Jul 2026708 PMAQI
17th Jul 2026679 PMAQI
17th Jul 20266410 PMAQI
17th Jul 20269011 PMAQI
18th Jul 202613512 AMAQI
18th Jul 20261451 AMAQI
18th Jul 20261542 AMAQI
18th Jul 20261533 AMAQI
18th Jul 2026624 AMAQI
18th Jul 2026665 AMAQI

23°C18/29°C

18th Jul 2026546 AMAQI
18th Jul 20261677 AMAQI
18th Jul 20261728 AMAQI
18th Jul 20261779 AMAQI
18th Jul 202617410 AMAQI
18th Jul 202616611 AMAQI
18th Jul 202615812 PMAQI
18th Jul 20261481 PMAQI
18th Jul 2026762 PMAQI
18th Jul 2026703 PMAQI
18th Jul 2026624 PMAQI
18th Jul 2026665 PMAQI
18th Jul 2026586 PMAQI
18th Jul 20261117 PMAQI
18th Jul 20261548 PMAQI
18th Jul 20261599 PMAQI
18th Jul 202615410 PMAQI
18th Jul 202610511 PMAQI
19th Jul 20266012 AMAQI
19th Jul 2026571 AMAQI
19th Jul 2026572 AMAQI
19th Jul 2026533 AMAQI
19th Jul 2026624 AMAQI
19th Jul 2026715 AMAQI

23°C19/31°C

19th Jul 2026706 AMAQI
19th Jul 20261007 AMAQI
19th Jul 20261228 AMAQI
19th Jul 2026879 AMAQI
19th Jul 20265610 AMAQI
19th Jul 20263311 AMAQI
19th Jul 20262812 PMAQI
19th Jul 2026251 PMAQI
19th Jul 2026242 PMAQI
19th Jul 2026273 PMAQI
19th Jul 2026274 PMAQI
19th Jul 2026275 PMAQI
19th Jul 2026386 PMAQI
19th Jul 2026257 PMAQI
19th Jul 2026288 PMAQI
19th Jul 2026269 PMAQI
19th Jul 20262210 PMAQI
19th Jul 20262411 PMAQI
20th Jul 20262012 AMAQI
20th Jul 2026201 AMAQI
20th Jul 2026202 AMAQI
20th Jul 2026223 AMAQI
20th Jul 2026274 AMAQI
20th Jul 2026235 AMAQI

21°C15/28°C

20th Jul 2026266 AMAQI
20th Jul 2026247 AMAQI
20th Jul 2026268 AMAQI
20th Jul 2026319 AMAQI
20th Jul 20262910 AMAQI
20th Jul 20263111 AMAQI
20th Jul 20263112 PMAQI
20th Jul 2026241 PMAQI
20th Jul 2026202 PMAQI
20th Jul 2026323 PMAQI
20th Jul 2026244 PMAQI
20th Jul 2026335 PMAQI
20th Jul 2026336 PMAQI
20th Jul 2026787 PMAQI
20th Jul 2026728 PMAQI
20th Jul 2026949 PMAQI
20th Jul 202610610 PMAQI
21st Jul 202611212 AMAQI
21st Jul 2026991 AMAQI
21st Jul 2026992 AMAQI
21st Jul 20261063 AMAQI
21st Jul 20261084 AMAQI
21st Jul 2026855 AMAQI

21°C13/28°C

21st Jul 2026726 AMAQI
21st Jul 2026807 AMAQI
21st Jul 2026758 AMAQI
21st Jul 2026819 AMAQI
21st Jul 20268110 AMAQI
21st Jul 20268211 AMAQI
21st Jul 20267912 PMAQI
21st Jul 2026821 PMAQI
21st Jul 2026802 PMAQI
21st Jul 2026423 PMAQI
21st Jul 2026304 PMAQI
21st Jul 2026265 PMAQI
21st Jul 2026226 PMAQI
21st Jul 2026317 PMAQI
21st Jul 2026338 PMAQI
21st Jul 2026489 PMAQI
21st Jul 20264210 PMAQI
21st Jul 20263411 PMAQI
22nd Jul 20263312 AMAQI
22nd Jul 2026201 AMAQI
22nd Jul 2026182 AMAQI
22nd Jul 2026143 AMAQI
22nd Jul 2026224 AMAQI
22nd Jul 2026265 AMAQI

21°C18/25°C

22nd Jul 2026256 AMAQI
22nd Jul 2026277 AMAQI
22nd Jul 2026218 AMAQI
22nd Jul 2026249 AMAQI
22nd Jul 20262810 AMAQI
22nd Jul 20262611 AMAQI
22nd Jul 20262212 PMAQI
22nd Jul 2026221 PMAQI
22nd Jul 2026202 PMAQI
22nd Jul 2026223 PMAQI
22nd Jul 2026214 PMAQI
22nd Jul 2026225 PMAQI
22nd Jul 2026206 PMAQI
22nd Jul 2026257 PMAQI
22nd Jul 2026248 PMAQI
22nd Jul 2026259 PMAQI
22nd Jul 20262510 PMAQI
22nd Jul 20266511 PMAQI
23rd Jul 20261912 AMAQI
23rd Jul 2026231 AMAQI
23rd Jul 2026192 AMAQI
23rd Jul 2026203 AMAQI
23rd Jul 2026184 AMAQI
23rd Jul 2026205 AMAQI

18°C14/24°C

23rd Jul 2026196 AMAQI
23rd Jul 2026197 AMAQI
23rd Jul 2026508 AMAQI
23rd Jul 2026339 AMAQI
23rd Jul 20262610 AMAQI
23rd Jul 20262611 AMAQI
23rd Jul 20262612 PMAQI
23rd Jul 2026221 PMAQI
23rd Jul 2026212 PMAQI
23rd Jul 2026213 PMAQI
23rd Jul 2026244 PMAQI
23rd Jul 2026225 PMAQI
23rd Jul 2026216 PMAQI
23rd Jul 2026217 PMAQI
23rd Jul 2026268 PMAQI
23rd Jul 2026229 PMAQI
23rd Jul 20262210 PMAQI
23rd Jul 20262211 PMAQI
24th Jul 20262112 AMAQI
24th Jul 2026221 AMAQI
24th Jul 2026232 AMAQI
24th Jul 2026223 AMAQI
24th Jul 2026234 AMAQI
24th Jul 2026245 AMAQI

19°C12/26°C

24th Jul 2026256 AMAQI
24th Jul 2026257 AMAQI
24th Jul 2026288 AMAQI
24th Jul 2026389 AMAQI
24th Jul 20263310 AMAQI
24th Jul 20264011 AMAQI
24th Jul 20264812 PMAQI
24th Jul 2026461 PMAQI
24th Jul 2026382 PMAQI
24th Jul 2026423 PMAQI
24th Jul 2026294 PMAQI
24th Jul 2026275 PMAQI
24th Jul 2026276 PMAQI
24th Jul 2026277 PMAQI
24th Jul 2026278 PMAQI
24th Jul 2026279 PMAQI
24th Jul 20262510 PMAQI
24th Jul 20262711 PMAQI
25th Jul 20262512 AMAQI
25th Jul 2026271 AMAQI
25th Jul 2026252 AMAQI
25th Jul 2026313 AMAQI
25th Jul 2026334 AMAQI
25th Jul 2026335 AMAQI

20°C13/28°C

25th Jul 2026276 AMAQI
25th Jul 2026257 AMAQI
25th Jul 2026258 AMAQI
25th Jul 2026259 AMAQI
25th Jul 20262510 AMAQI
25th Jul 20262511 AMAQI
25th Jul 20262312 PMAQI
25th Jul 2026271 PMAQI
25th Jul 2026232 PMAQI
25th Jul 2026253 PMAQI
25th Jul 2026274 PMAQI
25th Jul 2026275 PMAQI
25th Jul 2026276 PMAQI
25th Jul 2026367 PMAQI
25th Jul 2026368 PMAQI
25th Jul 2026389 PMAQI
25th Jul 20263110 PMAQI
25th Jul 20262911 PMAQI
26th Jul 20262712 AMAQI
26th Jul 2026381 AMAQI
26th Jul 2026382 AMAQI
26th Jul 2026423 AMAQI
26th Jul 2026424 AMAQI
26th Jul 2026485 AMAQI

21°C15/29°C

26th Jul 2026486 AMAQI
26th Jul 2026407 AMAQI
26th Jul 2026388 AMAQI
26th Jul 2026409 AMAQI
26th Jul 20264210 AMAQI
26th Jul 20264011 AMAQI
26th Jul 20264212 PMAQI
26th Jul 2026441 PMAQI
26th Jul 2026512 PMAQI
26th Jul 2026463 PMAQI
26th Jul 2026464 PMAQI
26th Jul 2026425 PMAQI
26th Jul 2026466 PMAQI
26th Jul 2026447 PMAQI
26th Jul 2026468 PMAQI
26th Jul 2026429 PMAQI
26th Jul 20264610 PMAQI
26th Jul 20264811 PMAQI
27th Jul 20265012 AMAQI
27th Jul 2026481 AMAQI
27th Jul 2026522 AMAQI
27th Jul 2026523 AMAQI
27th Jul 2026514 AMAQI
27th Jul 2026505 AMAQI

23°C17/29°C

27th Jul 2026496 AMAQI
27th Jul 2026507 AMAQI
27th Jul 2026568 AMAQI
27th Jul 2026579 AMAQI
27th Jul 20265510 AMAQI
27th Jul 20265411 AMAQI
27th Jul 20265312 PMAQI
27th Jul 2026501 PMAQI
27th Jul 2026532 PMAQI
27th Jul 2026513 PMAQI
27th Jul 2026544 PMAQI
27th Jul 2026545 PMAQI
27th Jul 2026576 PMAQI
27th Jul 2026577 PMAQI
27th Jul 2026608 PMAQI
27th Jul 2026599 PMAQI
27th Jul 20266210 PMAQI
27th Jul 20266311 PMAQI
28th Jul 20265912 AMAQI
28th Jul 2026601 AMAQI
28th Jul 2026592 AMAQI
28th Jul 2026563 AMAQI
28th Jul 2026554 AMAQI
28th Jul 2026515 AMAQI

23°C18/31°C

28th Jul 2026516 AMAQI
28th Jul 2026507 AMAQI
28th Jul 2026588 AMAQI
28th Jul 2026639 AMAQI
28th Jul 20266210 AMAQI
28th Jul 20265711 AMAQI
28th Jul 20265612 PMAQI
28th Jul 2026551 PMAQI
28th Jul 2026582 PMAQI
28th Jul 2026573 PMAQI
28th Jul 2026544 PMAQI
28th Jul 2026495 PMAQI
28th Jul 2026446 PMAQI
28th Jul 2026507 PMAQI
28th Jul 2026508 PMAQI
28th Jul 2026489 PMAQI
28th Jul 20265010 PMAQI
28th Jul 20264611 PMAQI
29th Jul 20262112 AMAQI
29th Jul 2026231 AMAQI
29th Jul 2026252 AMAQI
29th Jul 2026233 AMAQI
29th Jul 2026214 AMAQI
29th Jul 2026245 AMAQI

23°C20/26°C

29th Jul 2026226 AMAQI
29th Jul 2026267 AMAQI
29th Jul 2026218 AMAQI
29th Jul 2026199 AMAQI
29th Jul 20263210 AMAQI
29th Jul 20262011 AMAQI
29th Jul 20262012 PMAQI
29th Jul 2026221 PMAQI
29th Jul 2026212 PMAQI
29th Jul 2026233 PMAQI
29th Jul 2026214 PMAQI
29th Jul 2026215 PMAQI
29th Jul 2026246 PMAQI
29th Jul 2026247 PMAQI
29th Jul 2026228 PMAQI
29th Jul 2026219 PMAQI
29th Jul 20261810 PMAQI
29th Jul 20262111 PMAQI
30th Jul 20262112 AMAQI
30th Jul 2026221 AMAQI
30th Jul 2026182 AMAQI
30th Jul 2026203 AMAQI
30th Jul 2026364 AMAQI
30th Jul 2026205 AMAQI

22°C17/29°C

30th Jul 2026246 AMAQI
30th Jul 2026207 AMAQI
30th Jul 2026228 AMAQI
30th Jul 2026209 AMAQI
30th Jul 20262510 AMAQI
30th Jul 20262511 AMAQI
30th Jul 20262912 PMAQI
30th Jul 2026271 PMAQI
30th Jul 2026252 PMAQI
30th Jul 2026243 PMAQI
30th Jul 2026244 PMAQI
30th Jul 2026235 PMAQI
30th Jul 2026216 PMAQI
30th Jul 2026237 PMAQI
30th Jul 2026218 PMAQI
30th Jul 2026369 PMAQI
30th Jul 20263610 PMAQI
30th Jul 20263311 PMAQI
31st Jul 20262312 AMAQI
31st Jul 2026211 AMAQI
31st Jul 2026212 AMAQI
31st Jul 2026223 AMAQI
31st Jul 2026214 AMAQI
31st Jul 2026235 AMAQI

23°C16/31°C

31st Jul 2026236 AMAQI
31st Jul 2026497 AMAQI
31st Jul 2026538 AMAQI
31st Jul 2026549 AMAQI
31st Jul 20265410 AMAQI
31st Jul 20265711 AMAQI
31st Jul 20264912 PMAQI
31st Jul 2026381 PMAQI
31st Jul 2026332 PMAQI
31st Jul 2026363 PMAQI
31st Jul 2026314 PMAQI
31st Jul 2026335 PMAQI
31st Jul 2026366 PMAQI
31st Jul 2026367 PMAQI
31st Jul 2026318 PMAQI
31st Jul 2026319 PMAQI
31st Jul 20262910 PMAQI
31st Jul 20263811 PMAQI
1st Aug 20263612 AMAQI
1st Aug 2026401 AMAQI
1st Aug 2026312 AMAQI
1st Aug 2026333 AMAQI
1st Aug 2026364 AMAQI
1st Aug 2026445 AMAQI

24°C15/32°C

1st Aug 2026426 AMAQI
1st Aug 2026447 AMAQI
1st Aug 2026448 AMAQI
1st Aug 2026509 AMAQI
1st Aug 20264610 AMAQI
1st Aug 20264811 AMAQI
1st Aug 20264612 PMAQI
1st Aug 2026461 PMAQI
1st Aug 2026422 PMAQI
1st Aug 2026403 PMAQI
1st Aug 2026404 PMAQI
1st Aug 2026425 PMAQI
1st Aug 2026466 PMAQI
1st Aug 2026427 PMAQI
1st Aug 2026408 PMAQI
1st Aug 2026429 PMAQI
1st Aug 20264210 PMAQI
1st Aug 20264211 PMAQI
2nd Aug 20264012 AMAQI
2nd Aug 2026421 AMAQI
2nd Aug 2026422 AMAQI
2nd Aug 2026463 AMAQI
2nd Aug 2026424 AMAQI
2nd Aug 2026425 AMAQI

25°C20/31°C

2nd Aug 2026386 AMAQI
2nd Aug 2026407 AMAQI
2nd Aug 2026428 AMAQI
2nd Aug 2026389 AMAQI
2nd Aug 20264010 AMAQI
2nd Aug 20263111 AMAQI
2nd Aug 20263112 PMAQI
2nd Aug 2026421 PMAQI
2nd Aug 2026382 PMAQI
2nd Aug 2026333 PMAQI
2nd Aug 2026314 PMAQI
2nd Aug 2026295 PMAQI
2nd Aug 2026406 PMAQI
2nd Aug 2026317 PMAQI
2nd Aug 2026298 PMAQI
2nd Aug 2026329 PMAQI
2nd Aug 20264010 PMAQI
2nd Aug 20262511 PMAQI
3rd Aug 20262312 AMAQI
3rd Aug 2026231 AMAQI
3rd Aug 2026232 AMAQI
3rd Aug 2026213 AMAQI
3rd Aug 2026224 AMAQI
3rd Aug 2026225 AMAQI

21°C19/22°C

3rd Aug 2026246 AMAQI
3rd Aug 2026267 AMAQI
3rd Aug 2026238 AMAQI
3rd Aug 2026209 AMAQI
3rd Aug 20262210 AMAQI
3rd Aug 20262211 AMAQI
3rd Aug 20262212 PMAQI
3rd Aug 2026241 PMAQI
3rd Aug 2026652 PMAQI
3rd Aug 2026683 PMAQI
3rd Aug 2026664 PMAQI
3rd Aug 2026575 PMAQI
3rd Aug 2026206 PMAQI
3rd Aug 2026197 PMAQI
3rd Aug 2026228 PMAQI
3rd Aug 2026219 PMAQI
3rd Aug 20262310 PMAQI
3rd Aug 20262311 PMAQI
4th Aug 20262112 AMAQI
4th Aug 2026231 AMAQI
4th Aug 2026232 AMAQI
4th Aug 2026273 AMAQI
4th Aug 2026274 AMAQI
4th Aug 2026235 AMAQI

21°C17/28°C

4th Aug 2026226 AMAQI
4th Aug 2026277 AMAQI
4th Aug 2026228 AMAQI
4th Aug 2026249 AMAQI
4th Aug 20263010 AMAQI
4th Aug 20262211 AMAQI
4th Aug 20262612 PMAQI
4th Aug 2026251 PMAQI
4th Aug 2026212 PMAQI
4th Aug 2026223 PMAQI
4th Aug 2026244 PMAQI
4th Aug 2026255 PMAQI
4th Aug 2026236 PMAQI
4th Aug 2026237 PMAQI
4th Aug 2026218 PMAQI
4th Aug 2026249 PMAQI
4th Aug 20262510 PMAQI
4th Aug 20262111 PMAQI
5th Aug 20262312 AMAQI
5th Aug 2026251 AMAQI
5th Aug 2026222 AMAQI
5th Aug 2026333 AMAQI
5th Aug 2026334 AMAQI
5th Aug 2026295 AMAQI

21°C14/29°C

5th Aug 2026236 AMAQI
5th Aug 2026217 AMAQI
5th Aug 2026248 AMAQI
5th Aug 2026339 AMAQI
5th Aug 20263610 AMAQI
5th Aug 20264211 AMAQI
5th Aug 20264212 PMAQI
5th Aug 2026361 PMAQI
5th Aug 2026272 PMAQI
5th Aug 2026253 PMAQI
5th Aug 2026254 PMAQI
5th Aug 2026265 PMAQI
5th Aug 2026276 PMAQI
5th Aug 2026257 PMAQI
5th Aug 2026288 PMAQI
5th Aug 2026269 PMAQI
5th Aug 20263210 PMAQI
5th Aug 20262711 PMAQI
6th Aug 20262712 AMAQI
6th Aug 2026271 AMAQI
6th Aug 2026252 AMAQI
6th Aug 2026273 AMAQI
6th Aug 2026404 AMAQI
6th Aug 2026295 AMAQI

23°C16/31°C

6th Aug 2026426 AMAQI
6th Aug 2026337 AMAQI
6th Aug 2026518 AMAQI
6th Aug 2026369 AMAQI
6th Aug 20264410 AMAQI
6th Aug 20264011 AMAQI
6th Aug 20263812 PMAQI
6th Aug 2026401 PMAQI
6th Aug 2026442 PMAQI
6th Aug 2026443 PMAQI
6th Aug 2026384 PMAQI
6th Aug 2026425 PMAQI
6th Aug 2026446 PMAQI
6th Aug 2026387 PMAQI
6th Aug 2026408 PMAQI
6th Aug 2026409 PMAQI
6th Aug 20264810 PMAQI
6th Aug 20265611 PMAQI
7th Aug 20265212 AMAQI
7th Aug 2026441 AMAQI
7th Aug 2026442 AMAQI
7th Aug 2026503 AMAQI
7th Aug 2026484 AMAQI
7th Aug 2026485 AMAQI

24°C18/31°C

7th Aug 2026486 AMAQI
7th Aug 2026487 AMAQI
7th Aug 2026508 AMAQI
7th Aug 2026489 AMAQI
7th Aug 20264210 AMAQI
7th Aug 20265411 AMAQI
7th Aug 20265312 PMAQI
7th Aug 2026511 PMAQI
7th Aug 2026532 PMAQI
7th Aug 2026533 PMAQI
7th Aug 2026534 PMAQI
7th Aug 2026525 PMAQI
7th Aug 2026506 PMAQI
7th Aug 2026467 PMAQI
7th Aug 2026448 PMAQI
7th Aug 2026429 PMAQI
7th Aug 20264210 PMAQI
7th Aug 20264611 PMAQI
8th Aug 20265012 AMAQI
8th Aug 2026461 AMAQI
8th Aug 2026422 AMAQI
8th Aug 2026443 AMAQI
8th Aug 2026444 AMAQI
8th Aug 2026485 AMAQI

23°C21/28°C

8th Aug 2026516 AMAQI
8th Aug 2026487 AMAQI
8th Aug 2026448 AMAQI
8th Aug 2026489 AMAQI
8th Aug 20265110 AMAQI
8th Aug 20265611 AMAQI
8th Aug 20265212 PMAQI
8th Aug 2026511 PMAQI
8th Aug 2026522 PMAQI
8th Aug 2026463 PMAQI
8th Aug 2026444 PMAQI
8th Aug 2026445 PMAQI
8th Aug 2026446 PMAQI
8th Aug 2026427 PMAQI
8th Aug 2026408 PMAQI
8th Aug 2026429 PMAQI
8th Aug 20264610 PMAQI
8th Aug 20265111 PMAQI
9th Aug 20265112 AMAQI
9th Aug 2026481 AMAQI
9th Aug 2026382 AMAQI
9th Aug 2026363 AMAQI
9th Aug 2026334 AMAQI
9th Aug 2026315 AMAQI

23°C20/30°C

9th Aug 2026316 AMAQI
9th Aug 2026297 AMAQI
9th Aug 2026278 AMAQI
9th Aug 2026319 AMAQI
9th Aug 20263010 AMAQI
9th Aug 20262611 AMAQI
9th Aug 20262512 PMAQI
9th Aug 2026271 PMAQI
9th Aug 2026262 PMAQI
9th Aug 2026253 PMAQI
9th Aug 2026234 PMAQI
9th Aug 2026215 PMAQI
9th Aug 2026216 PMAQI
9th Aug 2026217 PMAQI
9th Aug 2026218 PMAQI
9th Aug 2026219 PMAQI
9th Aug 20262510 PMAQI
9th Aug 20262111 PMAQI
10th Aug 20262112 AMAQI
10th Aug 2026211 AMAQI
10th Aug 2026212 AMAQI
10th Aug 2026213 AMAQI
10th Aug 2026234 AMAQI
10th Aug 2026215 AMAQI

23°C16/31°C

10th Aug 2026236 AMAQI
10th Aug 2026227 AMAQI
10th Aug 2026238 AMAQI
10th Aug 2026229 AMAQI
10th Aug 20262310 AMAQI
10th Aug 20262111 AMAQI
10th Aug 20262212 PMAQI
10th Aug 2026361 PMAQI
10th Aug 2026442 PMAQI
10th Aug 2026503 PMAQI
10th Aug 2026464 PMAQI
10th Aug 2026505 PMAQI
10th Aug 2026426 PMAQI
10th Aug 2026447 PMAQI
10th Aug 2026468 PMAQI
10th Aug 2026489 PMAQI
10th Aug 20265010 PMAQI
10th Aug 20265011 PMAQI
11th Aug 20265412 AMAQI
11th Aug 2026511 AMAQI
11th Aug 2026502 AMAQI
11th Aug 2026513 AMAQI
11th Aug 2026514 AMAQI
11th Aug 2026445 AMAQI

23°C19/28°C

11th Aug 2026446 AMAQI
11th Aug 2026447 AMAQI
11th Aug 2026408 AMAQI
11th Aug 2026429 AMAQI
11th Aug 20263610 AMAQI
11th Aug 20263611 AMAQI
11th Aug 20263812 PMAQI
11th Aug 2026311 PMAQI
11th Aug 2026292 PMAQI
11th Aug 2026293 PMAQI
11th Aug 2026334 PMAQI
11th Aug 2026315 PMAQI
11th Aug 2026316 PMAQI
11th Aug 2026277 PMAQI
11th Aug 2026318 PMAQI
11th Aug 2026259 PMAQI
11th Aug 20262910 PMAQI
11th Aug 20262911 PMAQI
12th Aug 20264612 AMAQI
12th Aug 2026381 AMAQI
12th Aug 2026292 AMAQI
12th Aug 2026253 AMAQI
12th Aug 2026274 AMAQI
12th Aug 2026275 AMAQI

24°C18/33°C

12th Aug 2026256 AMAQI
12th Aug 2026257 AMAQI
12th Aug 2026278 AMAQI
12th Aug 2026319 AMAQI
12th Aug 20263810 AMAQI
12th Aug 20264011 AMAQI
12th Aug 20263612 PMAQI
12th Aug 2026361 PMAQI
12th Aug 2026542 PMAQI
12th Aug 2026523 PMAQI
12th Aug 2026504 PMAQI
12th Aug 2026515 PMAQI
12th Aug 2026526 PMAQI
12th Aug 2026547 PMAQI
12th Aug 2026548 PMAQI
12th Aug 2026519 PMAQI
12th Aug 20265210 PMAQI
12th Aug 20265411 PMAQI
13th Aug 20265612 AMAQI
13th Aug 2026561 AMAQI
13th Aug 2026582 AMAQI
13th Aug 2026543 AMAQI
13th Aug 2026554 AMAQI
13th Aug 2026515 AMAQI

21°C17/28°C

13th Aug 2026466 AMAQI
6 AM
13th Aug 2026467 AMAQI
13th Aug 2026448 AMAQI
13th Aug 2026409 AMAQI
13th Aug 20264010 AMAQI
13th Aug 20264011 AMAQI
13th Aug 20264212 PMAQI
13th Aug 2026401 PMAQI
1 PM
13th Aug 2026382 PMAQI
13th Aug 2026383 PMAQI
13th Aug 2026364 PMAQI
13th Aug 2026385 PMAQI
13th Aug 2026426 PMAQI
13th Aug 2026427 PMAQI
13th Aug 2026628 PMAQI
8 PM
13th Aug 2026559 PMAQI
13th Aug 20265410 PMAQI
13th Aug 20265011 PMAQI
1 AM
5 AM

23°C17/31°C

Day time
Avg. Highest Time
8 AM

51AQI

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

39AQI

1 hours / Day
30 hours / Month
In the last 30 days, during the daytime, the highest AQI was between 8 AM to 8 AM (Avg. 51), while the lowest AQI was between 6 PM to 6 PM (Avg. 39).
Night time
Avg. Highest Time
9 PM - 10 PM

46AQI

2 hours / Day
60 hours / Month
Avg. Lowest Time
5 AM

42AQI

1 hours / Day
30 hours / Month
In the last 30 days, during the daytime, the highest AQI was between 9 PM to 10 PM (Avg. 46), while the lowest AQI was between 5 AM to 5 AM (Avg. 42).

2026 Days Vs Air Quality

Toronto Downtown, Toronto, Ontario, Canada

2026

90%

199

10%

22

0.4%

1

Total number of days with different AQI categories in last 225 days in 2026 (140 days remaining)

Good
199 Days
Moderate
22 Days
Poor
1 Days
Unhealthy
0 Days
Severe
0 Days
Hazardous
0 Days

Under WHO’s Safe Air Quality Limits: 90%

Health Risk Level:

Very Low

In 2026, 90% of 225 days were within WHO’s safe air quality limits. The risk of health issues is Very Low, but health impacts are still unclear.

Annual Air Quality Insights

Toronto Downtown, Toronto, 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
12AQI (US)
2nd January 2026
10AQI (US)
3rd January 2026
12AQI (US)
4th January 2026
41AQI (US)
5th January 2026
46AQI (US)
6th January 2026
77AQI (US)
7th January 2026
68AQI (US)
8th January 2026
74AQI (US)
9th January 2026
34AQI (US)
10th January 2026
22AQI (US)
11th January 2026
19AQI (US)
12th January 2026
27AQI (US)
13th January 2026
31AQI (US)
14th January 2026
29AQI (US)
15th January 2026
22AQI (US)
16th January 2026
25AQI (US)
17th January 2026
39AQI (US)
18th January 2026
28AQI (US)
19th January 2026
26AQI (US)
20th January 2026
25AQI (US)
21st January 2026
31AQI (US)
22nd January 2026
51AQI (US)
23rd January 2026
56AQI (US)
24th January 2026
48AQI (US)
25th January 2026
47AQI (US)
26th January 2026
48AQI (US)
27th January 2026
39AQI (US)
28th January 2026
45AQI (US)
29th January 2026
50AQI (US)
30th January 2026
55AQI (US)
31st January 2026
44AQI (US)
1st February 2026
44AQI (US)
2nd February 2026
53AQI (US)
3rd February 2026
50AQI (US)
4th February 2026
48AQI (US)
5th February 2026
51AQI (US)
6th February 2026
49AQI (US)
7th February 2026
40AQI (US)
8th February 2026
44AQI (US)
9th February 2026
46AQI (US)
10th February 2026
45AQI (US)
11th February 2026
39AQI (US)
12th February 2026
39AQI (US)
13th February 2026
48AQI (US)
14th February 2026
50AQI (US)
15th February 2026
44AQI (US)
16th February 2026
46AQI (US)
17th February 2026
58AQI (US)
18th February 2026
43AQI (US)
19th February 2026
42AQI (US)
20th February 2026
41AQI (US)
21st February 2026
38AQI (US)
22nd February 2026
36AQI (US)
23rd February 2026
39AQI (US)
24th February 2026
46AQI (US)
25th February 2026
44AQI (US)
26th February 2026
35AQI (US)
27th February 2026
39AQI (US)
28th February 2026
36AQI (US)
1st March 2026
39AQI (US)
2nd March 2026
60AQI (US)
3rd March 2026
49AQI (US)
4th March 2026
49AQI (US)
5th March 2026
41AQI (US)
6th March 2026
35AQI (US)
7th March 2026
39AQI (US)
8th March 2026
38AQI (US)
9th March 2026
37AQI (US)
10th March 2026
37AQI (US)
11th March 2026
42AQI (US)
12th March 2026
39AQI (US)
13th March 2026
39AQI (US)
14th March 2026
35AQI (US)
15th March 2026
33AQI (US)
16th March 2026
38AQI (US)
17th March 2026
33AQI (US)
18th March 2026
32AQI (US)
19th March 2026
39AQI (US)
20th March 2026
39AQI (US)
21st March 2026
40AQI (US)
22nd March 2026
37AQI (US)
23rd March 2026
40AQI (US)
24th March 2026
37AQI (US)
25th March 2026
38AQI (US)
26th March 2026
37AQI (US)
27th March 2026
28AQI (US)
28th March 2026
31AQI (US)
29th March 2026
31AQI (US)
30th March 2026
28AQI (US)
31st March 2026
34AQI (US)
1st April 2026
32AQI (US)
2nd April 2026
29AQI (US)
3rd April 2026
31AQI (US)
4th April 2026
31AQI (US)
5th April 2026
30AQI (US)
6th April 2026
31AQI (US)
7th April 2026
28AQI (US)
8th April 2026
32AQI (US)
9th April 2026
29AQI (US)
10th April 2026
31AQI (US)
11th April 2026
31AQI (US)
12th April 2026
26AQI (US)
13th April 2026
30AQI (US)
14th April 2026
33AQI (US)
15th April 2026
42AQI (US)
16th April 2026
35AQI (US)
17th April 2026
18th April 2026
29AQI (US)
19th April 2026
35AQI (US)
20th April 2026
28AQI (US)
21st April 2026
27AQI (US)
22nd April 2026
23rd April 2026
29AQI (US)
24th April 2026
26AQI (US)
25th April 2026
28AQI (US)
26th April 2026
33AQI (US)
27th April 2026
27AQI (US)
28th April 2026
27AQI (US)
29th April 2026
24AQI (US)
30th April 2026
27AQI (US)
1st May 2026
27AQI (US)
2nd May 2026
24AQI (US)
3rd May 2026
24AQI (US)
4th May 2026
33AQI (US)
5th May 2026
37AQI (US)
6th May 2026
28AQI (US)
7th May 2026
27AQI (US)
8th May 2026
29AQI (US)
9th May 2026
10th May 2026
31AQI (US)
11th May 2026
27AQI (US)
12th May 2026
26AQI (US)
13th May 2026
31AQI (US)
14th May 2026
25AQI (US)
15th May 2026
43AQI (US)
16th May 2026
48AQI (US)
17th May 2026
77AQI (US)
18th May 2026
61AQI (US)
19th May 2026
46AQI (US)
20th May 2026
51AQI (US)
21st May 2026
44AQI (US)
22nd May 2026
44AQI (US)
23rd May 2026
50AQI (US)
24th May 2026
43AQI (US)
25th May 2026
46AQI (US)
26th May 2026
35AQI (US)
27th May 2026
29AQI (US)
28th May 2026
28AQI (US)
29th May 2026
26AQI (US)
30th May 2026
28AQI (US)
31st May 2026
29AQI (US)
1st June 2026
31AQI (US)
2nd June 2026
31AQI (US)
3rd June 2026
29AQI (US)
4th June 2026
35AQI (US)
5th June 2026
47AQI (US)
6th June 2026
44AQI (US)
7th June 2026
27AQI (US)
8th June 2026
25AQI (US)
9th June 2026
41AQI (US)
10th June 2026
43AQI (US)
11th June 2026
38AQI (US)
12th June 2026
26AQI (US)
13th June 2026
27AQI (US)
14th June 2026
24AQI (US)
15th June 2026
27AQI (US)
16th June 2026
27AQI (US)
17th June 2026
28AQI (US)
18th June 2026
26AQI (US)
19th June 2026
24AQI (US)
20th June 2026
24AQI (US)
21st June 2026
22AQI (US)
22nd June 2026
25AQI (US)
23rd June 2026
25AQI (US)
24th June 2026
24AQI (US)
25th June 2026
33AQI (US)
26th June 2026
43AQI (US)
27th June 2026
39AQI (US)
28th June 2026
36AQI (US)
29th June 2026
32AQI (US)
30th June 2026
31AQI (US)
1st July 2026
36AQI (US)
2nd July 2026
32AQI (US)
3rd July 2026
40AQI (US)
4th July 2026
35AQI (US)
5th July 2026
27AQI (US)
6th July 2026
24AQI (US)
7th July 2026
30AQI (US)
8th July 2026
27AQI (US)
9th July 2026
38AQI (US)
10th July 2026
30AQI (US)
11th July 2026
46AQI (US)
12th July 2026
61AQI (US)
13th July 2026
64AQI (US)
14th July 2026
56AQI (US)
15th July 2026
59AQI (US)
16th July 2026
80AQI (US)
17th July 2026
89AQI (US)
18th July 2026
123AQI (US)
19th July 2026
48AQI (US)
20th July 2026
37AQI (US)
21st July 2026
68AQI (US)
22nd July 2026
25AQI (US)
23rd July 2026
23AQI (US)
24th July 2026
30AQI (US)
25th July 2026
28AQI (US)
26th July 2026
43AQI (US)
27th July 2026
54AQI (US)
28th July 2026
54AQI (US)
29th July 2026
22AQI (US)
30th July 2026
25AQI (US)
31st July 2026
35AQI (US)
1st August 2026
42AQI (US)
2nd August 2026
37AQI (US)
3rd August 2026
29AQI (US)
4th August 2026
24AQI (US)
5th August 2026
29AQI (US)
6th August 2026
39AQI (US)
7th August 2026
48AQI (US)
8th August 2026
47AQI (US)
9th August 2026
29AQI (US)
10th August 2026
33AQI (US)
11th August 2026
38AQI (US)
12th August 2026
41AQI (US)
13th August 2026
47AQI (US)
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

38AQI (US)

44AQI (US)

38AQI (US)

30AQI (US)

37AQI (US)

31AQI (US)

45AQI (US)

37AQI (US)

No. of days

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

202638AQI (US)

25
6
25
3
30
1
28
27
3
30
21
9
1
13
199
22
1

Highest AQI (US) recorded in

July

45AQI (US)

Lowest AQI (US) recorded in

April

30AQI (US)

202536AQI (US)

27
4
24
4
29
2
30
31
20
10
26
5
17
13
1
27
3
27
4
27
3
23
8
308
56
1

Highest AQI (US) recorded in

August

48AQI (US)

Lowest AQI (US) recorded in

May

25AQI (US)

202432AQI (US)

27
3
26
3
29
2
29
1
29
2
25
3
23
8
25
6
29
1
29
2
30
29
2
330
33

Highest AQI (US) recorded in

July

40AQI (US)

Lowest AQI (US) recorded in

November

24AQI (US)

202337AQI (US)

26
4
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
58
1
1

Highest AQI (US) recorded in

June

58AQI (US)

Lowest AQI (US) recorded in

November

29AQI (US)

202235AQI (US)

28
2
21
26
5
23
1
25
6
27
3
18
5
1
26
1
24
7
24
6
29
2
272
38

Highest AQI (US) recorded in

November

40AQI (US)

Lowest AQI (US) recorded in

August

18AQI (US)

202136AQI (US)

22
7
25
3
24
7
26
4
25
6
26
4
21
7
2
1
24
7
30
31
27
3
29
2
310
50
2
1

Highest AQI (US) recorded in

July

50AQI (US)

Lowest AQI (US) recorded in

October

26AQI (US)

202032AQI (US)

12
20
1
15
3
26
4
29
2
30
1
26
4
30
1
20
5
26
5
234
26

Highest AQI (US) recorded in

June

38AQI (US)

Lowest AQI (US) recorded in

October

27AQI (US)

Most & Least Polluted Years Over the Last 7 Years

Most Polluted Year Recorded
2026(Avg.)
38AQI (US)
Least Polluted Year Recorded
2020(Avg.)
32AQI (US)

Toronto Downtown's annual 2026 AQI (US) (38) shows an average percentage change of 9.9% (worsened AQI (US)) compared to previous years: 2020 (32), 2021 (36), 2022 (35), 2023 (37), 2024 (32), 2025 (36).