Island Of Montreal Center, Mont Royal, Quebec, 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
Island Of Montreal Center, Mont Royal, Quebec, Canada
2024
2025
AQI
.
Days
AQI Trends: Highest and Lowest
Highest AQI recorded on
16th Aug 2024
73AQILowest AQI recorded on
9th Aug 2024
13AQISame Day Analysis (1st August ):
On this day, AQI across the 2 years varied significantly: 2025 ranks 2nd highest AQI at 24 of Good air quality, showing improvement over 2024 on the same day.
Download 2024 Annual Data
World Air Quality Report
Day & Night AQI Trend: 1st Aug - 2nd Aug 2025
Island Of Montreal Center, Mont Royal, Quebec, Canada
AQI
Day
Night
.
5 AM1st Aug 2025
8 PM
4 AM2nd Aug 2025
Day time
Avg. Highest Time
5AM1st Aug
27AQI
Avg. Lowest Time
8PM1st Aug
16AQI
Night time
Avg. Highest Time
2AM2nd Aug
32AQI
Avg. Lowest Time
10PM1st Aug
20AQI
In the last 24 hours,
Island Of Montreal Center's AQI reached its highest point of 32 at 2 AM during the Night, while the lowest point, 16, was recorded at 8 PM during the Day between 1st Aug and 2nd Aug 2025.
Day & Night AQI Trend : Jul - Aug 2025
Island Of Montreal Center, Mont Royal, Quebec, 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 2025325 AMAQI
3rd Jul 2025516 AMAQI
3rd Jul 2025527 AMAQI
3rd Jul 2025498 AMAQI
3rd Jul 2025479 AMAQI
3rd Jul 20254710 AMAQI
3rd Jul 20254611 AMAQI
3rd Jul 20254612 PMAQI
3rd Jul 2025441 PMAQI
3rd Jul 2025502 PMAQI
3rd Jul 2025463 PMAQI
3rd Jul 2025444 PMAQI
3rd Jul 2025415 PMAQI
3rd Jul 2025436 PMAQI
3rd Jul 2025417 PMAQI
3rd Jul 2025428 PMAQI
3rd Jul 2025409 PMAQI
3rd Jul 20254010 PMAQI
3rd Jul 20254211 PMAQI
4th Jul 20254012 AMAQI
4th Jul 2025361 AMAQI
4th Jul 2025302 AMAQI
4th Jul 2025243 AMAQI
4th Jul 2025244 AMAQI
23°C19/28°C
4th Jul 2025225 AMAQI
4th Jul 2025226 AMAQI
4th Jul 2025217 AMAQI
4th Jul 2025218 AMAQI
4th Jul 2025259 AMAQI
4th Jul 20252310 AMAQI
4th Jul 20252211 AMAQI
4th Jul 20252212 PMAQI
4th Jul 2025221 PMAQI
4th Jul 2025222 PMAQI
4th Jul 2025233 PMAQI
4th Jul 2025224 PMAQI
4th Jul 2025225 PMAQI
4th Jul 2025226 PMAQI
4th Jul 2025237 PMAQI
4th Jul 2025238 PMAQI
4th Jul 2025229 PMAQI
4th Jul 20252210 PMAQI
4th Jul 20252411 PMAQI
5th Jul 20252412 AMAQI
5th Jul 2025241 AMAQI
5th Jul 2025242 AMAQI
5th Jul 2025243 AMAQI
5th Jul 2025264 AMAQI
21°C13/28°C
5th Jul 2025245 AMAQI
5th Jul 2025266 AMAQI
5th Jul 2025287 AMAQI
5th Jul 2025288 AMAQI
5th Jul 2025269 AMAQI
5th Jul 20252610 AMAQI
5th Jul 20252711 AMAQI
5th Jul 20252412 PMAQI
5th Jul 2025251 PMAQI
5th Jul 2025262 PMAQI
5th Jul 2025253 PMAQI
5th Jul 2025264 PMAQI
5th Jul 2025285 PMAQI
5th Jul 2025266 PMAQI
5th Jul 2025267 PMAQI
5th Jul 2025278 PMAQI
5th Jul 2025279 PMAQI
5th Jul 20252610 PMAQI
5th Jul 20252511 PMAQI
6th Jul 20252712 AMAQI
6th Jul 2025291 AMAQI
6th Jul 2025312 AMAQI
6th Jul 2025363 AMAQI
6th Jul 2025364 AMAQI
23°C15/29°C
6th Jul 2025395 AMAQI
6th Jul 2025436 AMAQI
6th Jul 2025447 AMAQI
6th Jul 2025468 AMAQI
6th Jul 2025439 AMAQI
6th Jul 20254410 AMAQI
6th Jul 20254411 AMAQI
6th Jul 20254012 PMAQI
6th Jul 2025411 PMAQI
6th Jul 2025422 PMAQI
6th Jul 2025453 PMAQI
6th Jul 2025464 PMAQI
6th Jul 2025445 PMAQI
6th Jul 2025446 PMAQI
6th Jul 2025427 PMAQI
6th Jul 2025418 PMAQI
6th Jul 2025389 PMAQI
6th Jul 20253710 PMAQI
6th Jul 20254011 PMAQI
7th Jul 20253912 AMAQI
7th Jul 2025401 AMAQI
7th Jul 2025382 AMAQI
7th Jul 2025393 AMAQI
7th Jul 2025384 AMAQI
28°C21/37°C
7th Jul 2025435 AMAQI
7th Jul 2025366 AMAQI
7th Jul 2025387 AMAQI
7th Jul 2025388 AMAQI
7th Jul 2025519 AMAQI
7th Jul 20255010 AMAQI
7th Jul 20255111 AMAQI
7th Jul 20255012 PMAQI
7th Jul 2025501 PMAQI
7th Jul 2025512 PMAQI
7th Jul 2025503 PMAQI
7th Jul 2025454 PMAQI
7th Jul 2025415 PMAQI
7th Jul 2025346 PMAQI
7th Jul 2025347 PMAQI
7th Jul 2025338 PMAQI
7th Jul 2025409 PMAQI
7th Jul 20253910 PMAQI
7th Jul 20253011 PMAQI
8th Jul 20253012 AMAQI
8th Jul 2025321 AMAQI
8th Jul 2025322 AMAQI
8th Jul 2025253 AMAQI
8th Jul 2025244 AMAQI
18°C16/23°C
8th Jul 2025235 AMAQI
8th Jul 2025236 AMAQI
8th Jul 2025237 AMAQI
8th Jul 2025268 AMAQI
8th Jul 2025269 AMAQI
8th Jul 20252610 AMAQI
8th Jul 20252611 AMAQI
8th Jul 20253212 PMAQI
8th Jul 2025301 PMAQI
8th Jul 2025332 PMAQI
8th Jul 2025353 PMAQI
8th Jul 2025354 PMAQI
8th Jul 2025345 PMAQI
8th Jul 2025346 PMAQI
8th Jul 2025327 PMAQI
8th Jul 2025328 PMAQI
8th Jul 2025309 PMAQI
8th Jul 20252910 PMAQI
8th Jul 20253011 PMAQI
9th Jul 20253212 AMAQI
9th Jul 2025321 AMAQI
9th Jul 2025342 AMAQI
9th Jul 2025373 AMAQI
9th Jul 2025404 AMAQI
22°C16/30°C
9th Jul 2025415 AMAQI
9th Jul 2025406 AMAQI
9th Jul 2025427 AMAQI
9th Jul 2025458 AMAQI
9th Jul 2025459 AMAQI
9th Jul 20254210 AMAQI
9th Jul 20254211 AMAQI
9th Jul 20254412 PMAQI
9th Jul 2025421 PMAQI
9th Jul 2025422 PMAQI
9th Jul 2025433 PMAQI
9th Jul 2025434 PMAQI
9th Jul 2025435 PMAQI
9th Jul 2025446 PMAQI
9th Jul 2025437 PMAQI
9th Jul 2025438 PMAQI
9th Jul 2025419 PMAQI
9th Jul 20253910 PMAQI
9th Jul 20254011 PMAQI
10th Jul 20254012 AMAQI
10th Jul 2025431 AMAQI
10th Jul 2025422 AMAQI
10th Jul 2025463 AMAQI
10th Jul 2025464 AMAQI
24°C17/31°C
10th Jul 2025465 AMAQI
10th Jul 2025446 AMAQI
10th Jul 2025447 AMAQI
10th Jul 2025468 AMAQI
10th Jul 2025449 AMAQI
10th Jul 20254810 AMAQI
10th Jul 20254911 AMAQI
10th Jul 20254812 PMAQI
10th Jul 2025471 PMAQI
10th Jul 2025462 PMAQI
10th Jul 2025453 PMAQI
10th Jul 2025434 PMAQI
10th Jul 2025475 PMAQI
10th Jul 2025486 PMAQI
10th Jul 2025487 PMAQI
10th Jul 2025508 PMAQI
10th Jul 2025459 PMAQI
10th Jul 20254210 PMAQI
10th Jul 20254211 PMAQI
11th Jul 20254212 AMAQI
11th Jul 2025441 AMAQI
11th Jul 2025442 AMAQI
11th Jul 2025483 AMAQI
11th Jul 2025504 AMAQI
25°C19/30°C
11th Jul 2025485 AMAQI
11th Jul 2025476 AMAQI
11th Jul 2025427 AMAQI
11th Jul 2025448 AMAQI
11th Jul 2025479 AMAQI
11th Jul 20254810 AMAQI
11th Jul 20255211 AMAQI
11th Jul 20255012 PMAQI
11th Jul 2025481 PMAQI
11th Jul 2025472 PMAQI
11th Jul 2025463 PMAQI
11th Jul 2025484 PMAQI
11th Jul 2025505 PMAQI
11th Jul 2025516 PMAQI
11th Jul 2025517 PMAQI
11th Jul 2025508 PMAQI
11th Jul 2025479 PMAQI
11th Jul 20254710 PMAQI
11th Jul 20254611 PMAQI
12th Jul 20254512 AMAQI
12th Jul 2025481 AMAQI
12th Jul 2025462 AMAQI
12th Jul 2025533 AMAQI
12th Jul 2025544 AMAQI
26°C19/33°C
12th Jul 2025535 AMAQI
12th Jul 2025506 AMAQI
12th Jul 2025517 AMAQI
12th Jul 2025528 AMAQI
12th Jul 2025529 AMAQI
12th Jul 20255210 AMAQI
12th Jul 20255211 AMAQI
12th Jul 20255312 PMAQI
12th Jul 2025531 PMAQI
12th Jul 2025532 PMAQI
12th Jul 2025543 PMAQI
12th Jul 2025534 PMAQI
12th Jul 2025545 PMAQI
12th Jul 2025536 PMAQI
12th Jul 2025537 PMAQI
12th Jul 2025548 PMAQI
12th Jul 2025529 PMAQI
12th Jul 20255210 PMAQI
12th Jul 20254811 PMAQI
13th Jul 20255112 AMAQI
13th Jul 2025511 AMAQI
13th Jul 2025502 AMAQI
13th Jul 2025473 AMAQI
13th Jul 2025434 AMAQI
27°C21/35°C
13th Jul 2025405 AMAQI
13th Jul 2025406 AMAQI
13th Jul 2025387 AMAQI
13th Jul 2025388 AMAQI
13th Jul 2025399 AMAQI
13th Jul 20253810 AMAQI
13th Jul 20253811 AMAQI
13th Jul 20254012 PMAQI
13th Jul 2025391 PMAQI
13th Jul 2025392 PMAQI
13th Jul 2025393 PMAQI
13th Jul 2025404 PMAQI
13th Jul 2025415 PMAQI
13th Jul 2025416 PMAQI
13th Jul 2025407 PMAQI
13th Jul 2025388 PMAQI
13th Jul 2025419 PMAQI
13th Jul 20254110 PMAQI
13th Jul 20253911 PMAQI
14th Jul 20253912 AMAQI
14th Jul 2025421 AMAQI
14th Jul 2025422 AMAQI
14th Jul 2025353 AMAQI
14th Jul 2025354 AMAQI
26°C23/31°C
14th Jul 2025335 AMAQI
14th Jul 2025336 AMAQI
14th Jul 2025317 AMAQI
14th Jul 2025338 AMAQI
14th Jul 2025359 AMAQI
14th Jul 20253810 AMAQI
14th Jul 20254711 AMAQI
14th Jul 20255012 PMAQI
14th Jul 2025501 PMAQI
14th Jul 2025482 PMAQI
14th Jul 2025423 PMAQI
14th Jul 2025424 PMAQI
14th Jul 2025415 PMAQI
14th Jul 2025436 PMAQI
14th Jul 2025417 PMAQI
14th Jul 2025418 PMAQI
14th Jul 2025439 PMAQI
14th Jul 20254510 PMAQI
14th Jul 20253911 PMAQI
15th Jul 20254012 AMAQI
15th Jul 2025401 AMAQI
15th Jul 2025392 AMAQI
15th Jul 2025323 AMAQI
15th Jul 2025264 AMAQI
27°C22/34°C
15th Jul 2025325 AMAQI
15th Jul 2025346 AMAQI
15th Jul 2025377 AMAQI
15th Jul 2025388 AMAQI
15th Jul 2025439 AMAQI
15th Jul 20254410 AMAQI
15th Jul 20254311 AMAQI
15th Jul 20254212 PMAQI
15th Jul 2025421 PMAQI
15th Jul 2025422 PMAQI
15th Jul 2025433 PMAQI
15th Jul 2025444 PMAQI
15th Jul 2025405 PMAQI
15th Jul 2025416 PMAQI
15th Jul 2025427 PMAQI
15th Jul 2025418 PMAQI
15th Jul 2025409 PMAQI
15th Jul 20253910 PMAQI
15th Jul 20253911 PMAQI
16th Jul 20254012 AMAQI
16th Jul 2025391 AMAQI
16th Jul 2025402 AMAQI
16th Jul 2025453 AMAQI
16th Jul 2025524 AMAQI
27°C19/34°C
16th Jul 2025525 AMAQI
16th Jul 2025516 AMAQI
16th Jul 2025527 AMAQI
16th Jul 2025548 AMAQI
16th Jul 2025529 AMAQI
16th Jul 20255210 AMAQI
16th Jul 20254811 AMAQI
16th Jul 20254912 PMAQI
16th Jul 2025501 PMAQI
16th Jul 2025502 PMAQI
16th Jul 2025523 PMAQI
16th Jul 2025504 PMAQI
16th Jul 2025505 PMAQI
16th Jul 2025506 PMAQI
16th Jul 2025507 PMAQI
16th Jul 2025508 PMAQI
16th Jul 2025509 PMAQI
16th Jul 20254910 PMAQI
16th Jul 20254911 PMAQI
17th Jul 20254812 AMAQI
17th Jul 2025491 AMAQI
17th Jul 2025502 AMAQI
17th Jul 2025543 AMAQI
17th Jul 2025584 AMAQI
29°C22/37°C
17th Jul 2025545 AMAQI
17th Jul 2025496 AMAQI
17th Jul 2025487 AMAQI
17th Jul 2025428 AMAQI
17th Jul 2025459 AMAQI
17th Jul 20254610 AMAQI
17th Jul 20254811 AMAQI
17th Jul 20254412 PMAQI
17th Jul 2025441 PMAQI
17th Jul 2025432 PMAQI
17th Jul 2025433 PMAQI
17th Jul 2025444 PMAQI
17th Jul 2025445 PMAQI
17th Jul 2025466 PMAQI
17th Jul 2025427 PMAQI
17th Jul 2025398 PMAQI
17th Jul 2025469 PMAQI
17th Jul 20254410 PMAQI
17th Jul 20253511 PMAQI
18th Jul 20253212 AMAQI
18th Jul 2025311 AMAQI
18th Jul 2025302 AMAQI
18th Jul 2025193 AMAQI
18th Jul 2025164 AMAQI
27°C18/31°C
18th Jul 2025145 AMAQI
18th Jul 2025146 AMAQI
18th Jul 2025157 AMAQI
18th Jul 2025158 AMAQI
18th Jul 2025179 AMAQI
18th Jul 20251810 AMAQI
18th Jul 20251911 AMAQI
18th Jul 20252112 PMAQI
18th Jul 2025211 PMAQI
18th Jul 2025222 PMAQI
18th Jul 2025223 PMAQI
18th Jul 2025244 PMAQI
18th Jul 2025255 PMAQI
18th Jul 2025246 PMAQI
18th Jul 2025257 PMAQI
18th Jul 2025268 PMAQI
18th Jul 2025229 PMAQI
18th Jul 20252210 PMAQI
18th Jul 20252811 PMAQI
19th Jul 20253012 AMAQI
19th Jul 2025301 AMAQI
19th Jul 2025302 AMAQI
19th Jul 2025303 AMAQI
19th Jul 2025334 AMAQI
21°C14/28°C
19th Jul 2025325 AMAQI
19th Jul 2025306 AMAQI
19th Jul 2025297 AMAQI
19th Jul 2025288 AMAQI
19th Jul 2025289 AMAQI
19th Jul 20252810 AMAQI
19th Jul 20252911 AMAQI
19th Jul 20253112 PMAQI
19th Jul 2025341 PMAQI
19th Jul 2025392 PMAQI
19th Jul 2025413 PMAQI
19th Jul 2025424 PMAQI
19th Jul 2025405 PMAQI
19th Jul 2025426 PMAQI
19th Jul 2025437 PMAQI
19th Jul 2025428 PMAQI
19th Jul 2025369 PMAQI
19th Jul 20253610 PMAQI
19th Jul 20254311 PMAQI
20th Jul 20254012 AMAQI
20th Jul 2025401 AMAQI
20th Jul 2025422 AMAQI
20th Jul 2025433 AMAQI
20th Jul 2025454 AMAQI
22°C15/30°C
20th Jul 2025485 AMAQI
20th Jul 2025466 AMAQI
20th Jul 2025427 AMAQI
20th Jul 2025408 AMAQI
20th Jul 2025379 AMAQI
20th Jul 20253610 AMAQI
20th Jul 20253311 AMAQI
20th Jul 20253212 PMAQI
20th Jul 2025331 PMAQI
20th Jul 2025332 PMAQI
20th Jul 2025333 PMAQI
20th Jul 2025334 PMAQI
20th Jul 2025355 PMAQI
20th Jul 2025356 PMAQI
20th Jul 2025357 PMAQI
20th Jul 2025378 PMAQI
20th Jul 2025419 PMAQI
20th Jul 20254010 PMAQI
20th Jul 20254111 PMAQI
21st Jul 20254112 AMAQI
21st Jul 2025381 AMAQI
21st Jul 2025392 AMAQI
21st Jul 2025493 AMAQI
21st Jul 2025524 AMAQI
22°C17/29°C
21st Jul 2025445 AMAQI
21st Jul 2025346 AMAQI
21st Jul 2025297 AMAQI
21st Jul 2025288 AMAQI
21st Jul 2025289 AMAQI
21st Jul 20252510 AMAQI
21st Jul 20252311 AMAQI
21st Jul 20252212 PMAQI
21st Jul 2025221 PMAQI
21st Jul 2025222 PMAQI
21st Jul 2025203 PMAQI
21st Jul 2025224 PMAQI
21st Jul 2025245 PMAQI
21st Jul 2025246 PMAQI
21st Jul 2025247 PMAQI
21st Jul 2025238 PMAQI
21st Jul 2025249 PMAQI
21st Jul 20252410 PMAQI
21st Jul 20252211 PMAQI
22nd Jul 20252212 AMAQI
22nd Jul 2025221 AMAQI
22nd Jul 2025222 AMAQI
22nd Jul 2025193 AMAQI
22nd Jul 2025184 AMAQI
19°C15/24°C
22nd Jul 2025195 AMAQI
22nd Jul 2025186 AMAQI
22nd Jul 2025187 AMAQI
22nd Jul 2025188 AMAQI
22nd Jul 2025209 AMAQI
22nd Jul 20251910 AMAQI
22nd Jul 20251811 AMAQI
22nd Jul 20251812 PMAQI
22nd Jul 2025191 PMAQI
22nd Jul 2025192 PMAQI
22nd Jul 2025193 PMAQI
22nd Jul 2025204 PMAQI
22nd Jul 2025205 PMAQI
22nd Jul 2025206 PMAQI
22nd Jul 2025197 PMAQI
22nd Jul 2025208 PMAQI
22nd Jul 2025209 PMAQI
22nd Jul 20251910 PMAQI
22nd Jul 20252111 PMAQI
23rd Jul 20252212 AMAQI
23rd Jul 2025241 AMAQI
23rd Jul 2025242 AMAQI
23rd Jul 2025233 AMAQI
23rd Jul 2025254 AMAQI
19°C11/24°C
23rd Jul 2025265 AMAQI
23rd Jul 2025266 AMAQI
23rd Jul 2025267 AMAQI
23rd Jul 2025288 AMAQI
23rd Jul 2025289 AMAQI
23rd Jul 20252910 AMAQI
23rd Jul 20253011 AMAQI
23rd Jul 20252812 PMAQI
23rd Jul 2025271 PMAQI
23rd Jul 2025262 PMAQI
23rd Jul 2025243 PMAQI
23rd Jul 2025234 PMAQI
23rd Jul 2025245 PMAQI
23rd Jul 2025236 PMAQI
23rd Jul 2025237 PMAQI
23rd Jul 2025238 PMAQI
23rd Jul 2025249 PMAQI
23rd Jul 20252310 PMAQI
23rd Jul 20252611 PMAQI
24th Jul 20252712 AMAQI
24th Jul 2025271 AMAQI
24th Jul 2025262 AMAQI
24th Jul 2025283 AMAQI
24th Jul 2025284 AMAQI
21°C13/28°C
24th Jul 2025285 AMAQI
24th Jul 2025266 AMAQI
24th Jul 2025277 AMAQI
24th Jul 2025278 AMAQI
24th Jul 2025299 AMAQI
24th Jul 20253210 AMAQI
24th Jul 20253611 AMAQI
24th Jul 20253812 PMAQI
24th Jul 2025401 PMAQI
24th Jul 2025442 PMAQI
24th Jul 2025423 PMAQI
24th Jul 2025374 PMAQI
24th Jul 2025335 PMAQI
24th Jul 2025336 PMAQI
24th Jul 2025367 PMAQI
24th Jul 2025388 PMAQI
24th Jul 2025379 PMAQI
24th Jul 20253610 PMAQI
24th Jul 20253611 PMAQI
25th Jul 20253412 AMAQI
25th Jul 2025331 AMAQI
25th Jul 2025342 AMAQI
25th Jul 2025433 AMAQI
25th Jul 2025384 AMAQI
27°C18/35°C
25th Jul 2025345 AMAQI
25th Jul 2025336 AMAQI
25th Jul 2025337 AMAQI
25th Jul 2025348 AMAQI
25th Jul 2025349 AMAQI
25th Jul 20253310 AMAQI
25th Jul 20253211 AMAQI
25th Jul 20253212 PMAQI
25th Jul 2025341 PMAQI
25th Jul 2025382 PMAQI
25th Jul 2025423 PMAQI
25th Jul 2025424 PMAQI
25th Jul 2025375 PMAQI
25th Jul 2025376 PMAQI
25th Jul 2025367 PMAQI
25th Jul 2025368 PMAQI
25th Jul 2025429 PMAQI
25th Jul 20254010 PMAQI
25th Jul 20253611 PMAQI
26th Jul 20253512 AMAQI
26th Jul 2025361 AMAQI
26th Jul 2025362 AMAQI
26th Jul 2025393 AMAQI
26th Jul 2025504 AMAQI
27°C23/32°C
26th Jul 2025465 AMAQI
26th Jul 2025506 AMAQI
26th Jul 2025587 AMAQI
26th Jul 2025548 AMAQI
26th Jul 2025519 AMAQI
26th Jul 20255110 AMAQI
26th Jul 20255111 AMAQI
26th Jul 20254912 PMAQI
26th Jul 2025501 PMAQI
26th Jul 2025492 PMAQI
26th Jul 2025503 PMAQI
26th Jul 2025514 PMAQI
26th Jul 2025515 PMAQI
26th Jul 2025516 PMAQI
26th Jul 2025517 PMAQI
26th Jul 2025518 PMAQI
26th Jul 2025519 PMAQI
26th Jul 20255010 PMAQI
26th Jul 20255011 PMAQI
27th Jul 20255212 AMAQI
27th Jul 2025501 AMAQI
27th Jul 2025522 AMAQI
27th Jul 2025533 AMAQI
27th Jul 2025624 AMAQI
25°C16/33°C
27th Jul 2025585 AMAQI
27th Jul 2025626 AMAQI
27th Jul 2025597 AMAQI
27th Jul 2025618 AMAQI
27th Jul 2025589 AMAQI
27th Jul 20255810 AMAQI
27th Jul 20255811 AMAQI
27th Jul 20255712 PMAQI
27th Jul 2025571 PMAQI
27th Jul 2025562 PMAQI
27th Jul 2025563 PMAQI
27th Jul 2025564 PMAQI
27th Jul 2025585 PMAQI
27th Jul 2025596 PMAQI
27th Jul 2025607 PMAQI
27th Jul 2025588 PMAQI
27th Jul 2025569 PMAQI
27th Jul 20255710 PMAQI
27th Jul 20255611 PMAQI
28th Jul 20255612 AMAQI
28th Jul 2025551 AMAQI
28th Jul 2025562 AMAQI
28th Jul 2025543 AMAQI
28th Jul 2025544 AMAQI
25°C19/32°C
28th Jul 2025555 AMAQI
28th Jul 2025586 AMAQI
28th Jul 2025587 AMAQI
28th Jul 2025608 AMAQI
28th Jul 2025609 AMAQI
28th Jul 20255910 AMAQI
28th Jul 20256011 AMAQI
28th Jul 20255912 PMAQI
28th Jul 2025611 PMAQI
28th Jul 2025622 PMAQI
28th Jul 2025613 PMAQI
28th Jul 2025584 PMAQI
28th Jul 2025585 PMAQI
28th Jul 2025586 PMAQI
28th Jul 2025587 PMAQI
28th Jul 2025588 PMAQI
28th Jul 2025599 PMAQI
28th Jul 20256110 PMAQI
28th Jul 20255811 PMAQI
29th Jul 20255812 AMAQI
29th Jul 2025591 AMAQI
29th Jul 2025592 AMAQI
29th Jul 2025593 AMAQI
29th Jul 2025594 AMAQI
28°C20/35°C
29th Jul 2025585 AMAQI
29th Jul 2025566 AMAQI
29th Jul 2025567 AMAQI
29th Jul 2025568 AMAQI
29th Jul 2025559 AMAQI
29th Jul 20255310 AMAQI
29th Jul 20254811 AMAQI
29th Jul 20254212 PMAQI
29th Jul 2025421 PMAQI
29th Jul 2025402 PMAQI
29th Jul 2025433 PMAQI
29th Jul 2025474 PMAQI
29th Jul 2025525 PMAQI
29th Jul 2025536 PMAQI
29th Jul 2025547 PMAQI
29th Jul 2025568 PMAQI
29th Jul 2025579 PMAQI
29th Jul 20255810 PMAQI
29th Jul 20255811 PMAQI
30th Jul 20255812 AMAQI
30th Jul 2025581 AMAQI
30th Jul 2025582 AMAQI
30th Jul 2025603 AMAQI
30th Jul 2025624 AMAQI
25°C21/29°C
30th Jul 2025655 AMAQI
30th Jul 2025646 AMAQI
30th Jul 2025647 AMAQI
30th Jul 2025648 AMAQI
30th Jul 2025659 AMAQI
30th Jul 20256410 AMAQI
30th Jul 20256611 AMAQI
30th Jul 20256612 PMAQI
30th Jul 2025661 PMAQI
30th Jul 2025662 PMAQI
30th Jul 2025663 PMAQI
30th Jul 2025664 PMAQI
30th Jul 2025655 PMAQI
30th Jul 2025656 PMAQI
30th Jul 2025657 PMAQI
30th Jul 2025658 PMAQI
30th Jul 2025659 PMAQI
30th Jul 20256510 PMAQI
30th Jul 20256211 PMAQI
31st Jul 20256012 AMAQI
31st Jul 2025611 AMAQI
31st Jul 2025602 AMAQI
31st Jul 2025613 AMAQI
31st Jul 2025614 AMAQI
24°C20/30°C
31st Jul 2025685 AMAQI
31st Jul 2025656 AMAQI
31st Jul 2025597 AMAQI
31st Jul 2025548 AMAQI
31st Jul 2025529 AMAQI
31st Jul 20254610 AMAQI
31st Jul 20255111 AMAQI
31st Jul 20254012 PMAQI
31st Jul 2025381 PMAQI
31st Jul 2025332 PMAQI
31st Jul 2025343 PMAQI
31st Jul 2025354 PMAQI
31st Jul 2025325 PMAQI
31st Jul 2025336 PMAQI
31st Jul 2025347 PMAQI
31st Jul 2025348 PMAQI
31st Jul 2025489 PMAQI
31st Jul 20253910 PMAQI
31st Jul 20253211 PMAQI
1st Aug 20253312 AMAQI
1st Aug 2025351 AMAQI
1st Aug 2025362 AMAQI
1st Aug 2025363 AMAQI
1st Aug 2025314 AMAQI
20°C16/24°C
1st Aug 2025275 AMAQI
1st Aug 2025266 AMAQI
1st Aug 2025237 AMAQI
1st Aug 2025198 AMAQI
1st Aug 2025209 AMAQI
1st Aug 20252010 AMAQI
1st Aug 20252011 AMAQI
1st Aug 20251812 PMAQI
1st Aug 2025171 PMAQI
1st Aug 2025182 PMAQI
1st Aug 2025183 PMAQI
1st Aug 2025164 PMAQI
1st Aug 2025175 PMAQI
1st Aug 2025176 PMAQI
1st Aug 2025187 PMAQI
1st Aug 2025168 PMAQI
1st Aug 2025209 PMAQI
1st Aug 20252010 PMAQI
1st Aug 20252411 PMAQI
2nd Aug 20252812 AMAQI
2nd Aug 2025281 AMAQI
2nd Aug 2025322 AMAQI
2nd Aug 2025313 AMAQI
2nd Aug 2025304 AMAQI
19°C12/26°C
2nd Aug 2025315 AMAQI
5 AM2nd Aug 2025286 AMAQI
2nd Aug 2025267 AMAQI
2nd Aug 2025248 AMAQI
2nd Aug 2025239 AMAQI
2nd Aug 20252210 AMAQI
2nd Aug 20252211 AMAQI
2nd Aug 20252112 PMAQI
12 PM2nd Aug 2025231 PMAQI
2nd Aug 2025272 PMAQI
2nd Aug 2025303 PMAQI
2nd Aug 2025384 PMAQI
2nd Aug 2025565 PMAQI
2nd Aug 2025616 PMAQI
8 PM
12 AM
4 AM
--°C/°C
Day time
Avg. Highest Time
5 AM - 8 PM
40AQI
16 hours / Day
480 hours / Month
Avg. Lowest Time
5 AM - 8 PM
40AQI
16 hours / Day
480 hours / Month
In the last 30 days, during the daytime, the highest AQI was between 5 AM to 8 PM (Avg. 40), while the lowest AQI was between 5 AM to 8 PM (Avg. 40).
Night time
Avg. Highest Time
12 AM - 11 PM
39AQI
8 hours / Day
240 hours / Month
Avg. Lowest Time
12 AM - 11 PM
39AQI
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. 39), while the lowest AQI was between 12 AM to 11 PM (Avg. 39).
2025 Days Vs Air Quality
Island Of Montreal Center, Mont Royal, Quebec, Canada
2025
89%
190
11%
23
Total number of days with different AQI categories in last 214 days in 2025 (151 days remaining)
Good
190 DaysModerate
23 DaysPoor
0 DaysUnhealthy
0 DaysSevere
0 DaysHazardous
0 DaysUnder WHO’s Safe Air Quality Limits: 89%
Health Risk Level:
Low
In 2025, 89% of 214 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
Island Of Montreal Center, Mont Royal, Quebec, 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
28AQI
28AQI
2nd January 2025
24AQI
24AQI
3rd January 2025
20AQI
20AQI
4th January 2025
20AQI
20AQI
5th January 2025
21AQI
21AQI
6th January 2025
26AQI
26AQI
7th January 2025
20AQI
20AQI
8th January 2025
19AQI
19AQI
9th January 2025
20AQI
20AQI
10th January 2025
22AQI
22AQI
11th January 2025
39AQI
39AQI
12th January 2025
31AQI
31AQI
13th January 2025
58AQI
58AQI
14th January 2025
30AQI
30AQI
15th January 2025
20AQI
20AQI
16th January 2025
32AQI
32AQI
17th January 2025
64AQI
64AQI
18th January 2025
44AQI
44AQI
19th January 2025
26AQI
26AQI
20th January 2025
25AQI
25AQI
21st January 2025
42AQI
42AQI
22nd January 2025
51AQI
51AQI
23rd January 2025
44AQI
44AQI
24th January 2025
46AQI
46AQI
25th January 2025
54AQI
54AQI
26th January 2025
39AQI
39AQI
27th January 2025
26AQI
26AQI
28th January 2025
23AQI
23AQI
29th January 2025
27AQI
27AQI
30th January 2025
23AQI
23AQI
31st January 2025
44AQI
44AQI
1st February 2025
23AQI
23AQI
2nd February 2025
41AQI
41AQI
3rd February 2025
56AQI
56AQI
4th February 2025
27AQI
27AQI
5th February 2025
24AQI
24AQI
6th February 2025
34AQI
34AQI
7th February 2025
32AQI
32AQI
8th February 2025
24AQI
24AQI
9th February 2025
35AQI
35AQI
10th February 2025
25AQI
25AQI
11th February 2025
30AQI
30AQI
12th February 2025
30AQI
30AQI
13th February 2025
26AQI
26AQI
14th February 2025
21AQI
21AQI
15th February 2025
23AQI
23AQI
16th February 2025
22AQI
22AQI
17th February 2025
21AQI
21AQI
18th February 2025
20AQI
20AQI
19th February 2025
20AQI
20AQI
20th February 2025
26AQI
26AQI
21st February 2025
20AQI
20AQI
22nd February 2025
28AQI
28AQI
23rd February 2025
52AQI
52AQI
24th February 2025
48AQI
48AQI
25th February 2025
60AQI
60AQI
26th February 2025
44AQI
44AQI
27th February 2025
43AQI
43AQI
28th February 2025
30AQI
30AQI
1st March 2025
25AQI
25AQI
2nd March 2025
24AQI
24AQI
3rd March 2025
42AQI
42AQI
4th March 2025
38AQI
38AQI
5th March 2025
56AQI
56AQI
6th March 2025
20AQI
20AQI
7th March 2025
23AQI
23AQI
8th March 2025
26AQI
26AQI
9th March 2025
24AQI
24AQI
10th March 2025
29AQI
29AQI
11th March 2025
43AQI
43AQI
12th March 2025
22AQI
22AQI
13th March 2025
42AQI
42AQI
14th March 2025
83AQI
83AQI
15th March 2025
61AQI
61AQI
16th March 2025
52AQI
52AQI
17th March 2025
22AQI
22AQI
18th March 2025
29AQI
29AQI
19th March 2025
33AQI
33AQI
20th March 2025
24AQI
24AQI
21st March 2025
20AQI
20AQI
22nd March 2025
23AQI
23AQI
23rd March 2025
18AQI
18AQI
24th March 2025
25AQI
25AQI
25th March 2025
26AQI
26AQI
26th March 2025
22AQI
22AQI
27th March 2025
21AQI
21AQI
28th March 2025
23AQI
23AQI
29th March 2025
20AQI
20AQI
30th March 2025
24AQI
24AQI
31st March 2025
33AQI
33AQI
1st April 2025
18AQI
18AQI
2nd April 2025
20AQI
20AQI
3rd April 2025
21AQI
21AQI
4th April 2025
19AQI
19AQI
5th April 2025
21AQI
21AQI
6th April 2025
18AQI
18AQI
7th April 2025
20AQI
20AQI
8th April 2025
22AQI
22AQI
9th April 2025
19AQI
19AQI
10th April 2025
26AQI
26AQI
11th April 2025
33AQI
33AQI
12th April 2025
37AQI
37AQI
13th April 2025
25AQI
25AQI
14th April 2025
28AQI
28AQI
15th April 2025
27AQI
27AQI
16th April 2025
17AQI
17AQI
17th April 2025
16AQI
16AQI
18th April 2025
29AQI
29AQI
19th April 2025
47AQI
47AQI
20th April 2025
15AQI
15AQI
21st April 2025
20AQI
20AQI
22nd April 2025
21AQI
21AQI
23rd April 2025
17AQI
17AQI
24th April 2025
22AQI
22AQI
25th April 2025
22AQI
22AQI
26th April 2025
24AQI
24AQI
27th April 2025
13AQI
13AQI
28th April 2025
24AQI
24AQI
29th April 2025
33AQI
33AQI
30th April 2025
18AQI
18AQI
1st May 2025
19AQI
19AQI
2nd May 2025
26AQI
26AQI
3rd May 2025
16AQI
16AQI
4th May 2025
32AQI
32AQI
5th May 2025
20AQI
20AQI
6th May 2025
22AQI
22AQI
7th May 2025
18AQI
18AQI
8th May 2025
16AQI
16AQI
9th May 2025
19AQI
19AQI
10th May 2025
22AQI
22AQI
11th May 2025
16AQI
16AQI
12th May 2025
23AQI
23AQI
13th May 2025
32AQI
32AQI
14th May 2025
37AQI
37AQI
15th May 2025
30AQI
30AQI
16th May 2025
42AQI
42AQI
17th May 2025
41AQI
41AQI
18th May 2025
21AQI
21AQI
19th May 2025
13AQI
13AQI
20th May 2025
14AQI
14AQI
21st May 2025
20AQI
20AQI
22nd May 2025
16AQI
16AQI
23rd May 2025
15AQI
15AQI
24th May 2025
14AQI
14AQI
25th May 2025
16AQI
16AQI
26th May 2025
24AQI
24AQI
27th May 2025
29AQI
29AQI
28th May 2025
33AQI
33AQI
29th May 2025
34AQI
34AQI
30th May 2025
26AQI
26AQI
31st May 2025
30AQI
30AQI
1st June 2025
14AQI
14AQI
2nd June 2025
18AQI
18AQI
3rd June 2025
28AQI
28AQI
4th June 2025
43AQI
43AQI
5th June 2025
43AQI
43AQI
6th June 2025
53AQI
53AQI
7th June 2025
59AQI
59AQI
8th June 2025
57AQI
57AQI
9th June 2025
59AQI
59AQI
10th June 2025
44AQI
44AQI
11th June 2025
52AQI
52AQI
12th June 2025
56AQI
56AQI
13th June 2025
28AQI
28AQI
14th June 2025
28AQI
28AQI
15th June 2025
32AQI
32AQI
16th June 2025
45AQI
45AQI
17th June 2025
43AQI
43AQI
18th June 2025
25AQI
25AQI
19th June 2025
40AQI
40AQI
20th June 2025
22AQI
22AQI
21st June 2025
27AQI
27AQI
22nd June 2025
28AQI
28AQI
23rd June 2025
42AQI
42AQI
24th June 2025
51AQI
51AQI
25th June 2025
44AQI
44AQI
26th June 2025
28AQI
28AQI
27th June 2025
31AQI
31AQI
28th June 2025
29AQI
29AQI
29th June 2025
29AQI
29AQI
30th June 2025
31AQI
31AQI
1st July 2025
35AQI
35AQI
2nd July 2025
32AQI
32AQI
3rd July 2025
41AQI
41AQI
4th July 2025
24AQI
24AQI
5th July 2025
26AQI
26AQI
6th July 2025
40AQI
40AQI
7th July 2025
41AQI
41AQI
8th July 2025
29AQI
29AQI
9th July 2025
41AQI
41AQI
10th July 2025
45AQI
45AQI
11th July 2025
47AQI
47AQI
12th July 2025
52AQI
52AQI
13th July 2025
42AQI
42AQI
14th July 2025
40AQI
40AQI
15th July 2025
39AQI
39AQI
16th July 2025
49AQI
49AQI
17th July 2025
46AQI
46AQI
18th July 2025
22AQI
22AQI
19th July 2025
35AQI
35AQI
20th July 2025
39AQI
39AQI
21st July 2025
30AQI
30AQI
22nd July 2025
19AQI
19AQI
23rd July 2025
25AQI
25AQI
24th July 2025
33AQI
33AQI
25th July 2025
36AQI
36AQI
26th July 2025
48AQI
48AQI
27th July 2025
57AQI
57AQI
28th July 2025
58AQI
58AQI
29th July 2025
54AQI
54AQI
30th July 2025
64AQI
64AQI
31st July 2025
47AQI
47AQI
1st August 2025
24AQI
24AQI
33AQI
32AQI
31AQI
23AQI
24AQI
38AQI
40AQI
24AQI
No. of days
Jan.Feb.Mar.Apr.MayJun.Jul.Aug.Sep.Oct.Nov.Dec.Total Days
202531AQI
27
4
25
3
27
4
30
31
23
7
26
5
1
190
23
Highest AQI recorded in
July40AQI
Lowest AQI recorded in
April23AQI
202432AQI
16
1
2
2
12
26
3
27
4
21
10
19
10
31
30
25
5
1
212
32
1
Highest AQI recorded in
February50AQI
Lowest AQI recorded in
March12AQI
202334AQI
3
24
7
27
7
Highest AQI recorded in
December35AQI
Lowest AQI recorded in
November21AQI
202014AQI
1
1
1
2
5
Highest AQI recorded in
May31AQI
Lowest AQI recorded in
September0AQI
Most & Least Polluted Years Over the Last 4 Years
Most Polluted Year Recorded
2023(Avg.)
34AQILeast Polluted Year Recorded
2020(Avg.)
14AQIIsland Of Montreal Center's annual 2025 AQI (31) shows an average percentage change of 36.1% (worsened AQI) compared to previous years: 2020 (14), 2023 (34), 2024 (32).
