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HistoryAQIPM₂.₅PM₁₀COSO₂NO₂O₃

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+

July Air Quality Analysis

Island Of Montreal Center, Mont Royal, Quebec, Canada

2024
2025
2026
AQI
.
Days

AQI Trends: Highest and Lowest

Highest AQI recorded on
30th Jul 2025
64AQI
Lowest AQI recorded on
1st Jul 2024
18AQI

Same Day Analysis (13th July):
On this day, AQI across the 3 years varied significantly: 2026 ranks 2nd highest AQI at 33 of Good air quality, showing improvement over 2025 on the same day.

Day & Night AQI Trend: 13th Jul - 14th Jul 2026

Island Of Montreal Center, Mont Royal, Quebec, Canada

AQI
Day
Night
.

5 AM13th Jul 2026

8 PM

4 AM14th Jul 2026

Day time
Avg. Highest Time
11AM13th Jul

47AQI

Avg. Lowest Time
3PM13th Jul

27AQI

Night time
Avg. Highest Time
4AM14th Jul

36AQI

Avg. Lowest Time
1AM14th Jul

24AQI

In the last 24 hours,

Island Of Montreal Center's AQI reached its highest point of 47 at 11 AM during the Day, while the lowest point, 24, was recorded at 1 AM during the Night between 13th Jul and 14th Jul 2026.

Day & Night AQI Trend : Jun - Jul 2026

Island Of Montreal Center, Mont Royal, Quebec, Canada

JunJul
15th - 16th16th - 17th17th - 18th18th - 19th19th - 20th20th - 21st21st - 22nd22nd - 23rd23rd - 24th24th - 25th25th - 26th26th - 27th27th - 28th28th - 29th29th - 30th30th - 01st01st - 02nd02nd - 03rd03rd - 04th04th - 05th05th - 06th06th - 07th07th - 08th08th - 09th09th - 10th10th - 11th11th - 12th12th - 13th13th - 14th14th
Day
Night
15th Jun 2026125 AMAQI
15th Jun 2026196 AMAQI
15th Jun 2026147 AMAQI
15th Jun 202688 AMAQI
15th Jun 202689 AMAQI
15th Jun 20262410 AMAQI
15th Jun 20262811 AMAQI
15th Jun 20263012 PMAQI
15th Jun 2026301 PMAQI
15th Jun 2026182 PMAQI
15th Jun 2026283 PMAQI
15th Jun 2026294 PMAQI
15th Jun 2026285 PMAQI
15th Jun 2026286 PMAQI
15th Jun 2026287 PMAQI
15th Jun 2026308 PMAQI
15th Jun 2026319 PMAQI
15th Jun 20262710 PMAQI
15th Jun 20262911 PMAQI
16th Jun 2026812 AMAQI
16th Jun 2026241 AMAQI
16th Jun 2026262 AMAQI
16th Jun 2026263 AMAQI
16th Jun 2026164 AMAQI

17°C13/21°C

16th Jun 2026255 AMAQI
16th Jun 2026256 AMAQI
16th Jun 2026227 AMAQI
16th Jun 2026248 AMAQI
16th Jun 2026289 AMAQI
16th Jun 20262910 AMAQI
16th Jun 20263211 AMAQI
16th Jun 20263012 PMAQI
16th Jun 2026311 PMAQI
16th Jun 2026272 PMAQI
16th Jun 2026183 PMAQI
16th Jun 2026284 PMAQI
16th Jun 2026285 PMAQI
16th Jun 2026266 PMAQI
16th Jun 2026287 PMAQI
16th Jun 2026178 PMAQI
16th Jun 2026199 PMAQI
16th Jun 20262810 PMAQI
16th Jun 20263011 PMAQI
17th Jun 20262812 AMAQI
17th Jun 2026251 AMAQI
17th Jun 2026282 AMAQI
17th Jun 2026253 AMAQI
17th Jun 2026254 AMAQI

17°C11/24°C

17th Jun 2026245 AMAQI
17th Jun 2026236 AMAQI
17th Jun 2026187 AMAQI
17th Jun 2026188 AMAQI
17th Jun 2026129 AMAQI
17th Jun 20262910 AMAQI
17th Jun 20262811 AMAQI
17th Jun 20262812 PMAQI
17th Jun 2026311 PMAQI
17th Jun 2026302 PMAQI
17th Jun 2026293 PMAQI
17th Jun 2026304 PMAQI
17th Jun 2026285 PMAQI
17th Jun 2026206 PMAQI
17th Jun 2026207 PMAQI
17th Jun 2026208 PMAQI
17th Jun 2026209 PMAQI
17th Jun 20262310 PMAQI
17th Jun 20262811 PMAQI
18th Jun 20262012 AMAQI
18th Jun 2026181 AMAQI
18th Jun 2026182 AMAQI
18th Jun 2026283 AMAQI
18th Jun 2026264 AMAQI

18°C13/25°C

18th Jun 2026205 AMAQI
18th Jun 2026246 AMAQI
18th Jun 2026257 AMAQI
18th Jun 2026268 AMAQI
18th Jun 2026249 AMAQI
18th Jun 20263110 AMAQI
18th Jun 20262511 AMAQI
18th Jun 20262912 PMAQI
18th Jun 2026311 PMAQI
18th Jun 2026262 PMAQI
18th Jun 2026263 PMAQI
18th Jun 2026244 PMAQI
18th Jun 2026255 PMAQI
18th Jun 2026216 PMAQI
18th Jun 2026287 PMAQI
18th Jun 2026308 PMAQI
18th Jun 2026299 PMAQI
18th Jun 20262810 PMAQI
18th Jun 20262811 PMAQI
19th Jun 20261912 AMAQI
19th Jun 202681 AMAQI
19th Jun 2026262 AMAQI
19th Jun 2026243 AMAQI
19th Jun 2026244 AMAQI

19°C16/24°C

19th Jun 2026145 AMAQI
19th Jun 2026156 AMAQI
19th Jun 2026227 AMAQI
19th Jun 2026238 AMAQI
19th Jun 2026229 AMAQI
19th Jun 20262410 AMAQI
19th Jun 20262411 AMAQI
19th Jun 20262812 PMAQI
19th Jun 2026271 PMAQI
19th Jun 2026262 PMAQI
19th Jun 2026263 PMAQI
19th Jun 2026284 PMAQI
19th Jun 2026285 PMAQI
19th Jun 2026266 PMAQI
19th Jun 2026267 PMAQI
19th Jun 2026298 PMAQI
19th Jun 2026189 PMAQI
19th Jun 20261810 PMAQI
19th Jun 20262411 PMAQI
20th Jun 20262212 AMAQI
20th Jun 2026241 AMAQI
20th Jun 2026242 AMAQI
20th Jun 2026243 AMAQI
20th Jun 2026174 AMAQI

17°C16/20°C

20th Jun 2026225 AMAQI
20th Jun 2026246 AMAQI
20th Jun 2026227 AMAQI
20th Jun 2026168 AMAQI
20th Jun 2026249 AMAQI
20th Jun 20262810 AMAQI
20th Jun 20262911 AMAQI
20th Jun 20262012 PMAQI
20th Jun 2026301 PMAQI
20th Jun 2026282 PMAQI
20th Jun 2026273 PMAQI
20th Jun 2026245 PMAQI
20th Jun 2026246 PMAQI
20th Jun 2026217 PMAQI
20th Jun 2026188 PMAQI
20th Jun 2026189 PMAQI
20th Jun 20261810 PMAQI
20th Jun 20262311 PMAQI
21st Jun 20261712 AMAQI
21st Jun 2026171 AMAQI
21st Jun 2026172 AMAQI
21st Jun 2026173 AMAQI
21st Jun 2026224 AMAQI

18°C14/22°C

21st Jun 2026185 AMAQI
21st Jun 2026206 AMAQI
21st Jun 2026187 AMAQI
21st Jun 2026208 AMAQI
21st Jun 2026239 AMAQI
21st Jun 20262410 AMAQI
21st Jun 20262411 AMAQI
21st Jun 20262412 PMAQI
21st Jun 2026251 PMAQI
21st Jun 2026262 PMAQI
21st Jun 2026203 PMAQI
21st Jun 2026184 PMAQI
21st Jun 2026205 PMAQI
21st Jun 2026186 PMAQI
21st Jun 2026207 PMAQI
21st Jun 2026248 PMAQI
21st Jun 2026189 PMAQI
21st Jun 20262010 PMAQI
21st Jun 20262011 PMAQI
22nd Jun 20262012 AMAQI
22nd Jun 2026221 AMAQI
22nd Jun 2026222 AMAQI
22nd Jun 2026213 AMAQI
22nd Jun 2026204 AMAQI

18°C15/24°C

22nd Jun 2026195 AMAQI
22nd Jun 2026206 AMAQI
22nd Jun 2026207 AMAQI
22nd Jun 2026208 AMAQI
22nd Jun 2026179 AMAQI
22nd Jun 20262310 AMAQI
22nd Jun 20261811 AMAQI
22nd Jun 20262212 PMAQI
22nd Jun 2026281 PMAQI
22nd Jun 2026282 PMAQI
22nd Jun 2026263 PMAQI
22nd Jun 2026274 PMAQI
22nd Jun 2026265 PMAQI
22nd Jun 2026226 PMAQI
22nd Jun 2026297 PMAQI
22nd Jun 2026208 PMAQI
22nd Jun 2026189 PMAQI
22nd Jun 20262610 PMAQI
22nd Jun 20262711 PMAQI
23rd Jun 20261612 AMAQI
23rd Jun 2026171 AMAQI
23rd Jun 2026182 AMAQI
23rd Jun 2026223 AMAQI
23rd Jun 2026144 AMAQI

19°C15/26°C

23rd Jun 2026165 AMAQI
23rd Jun 2026146 AMAQI
23rd Jun 202687 AMAQI
23rd Jun 2026228 AMAQI
23rd Jun 2026249 AMAQI
23rd Jun 20261810 AMAQI
23rd Jun 20262811 AMAQI
23rd Jun 20262512 PMAQI
23rd Jun 2026261 PMAQI
23rd Jun 2026282 PMAQI
23rd Jun 2026263 PMAQI
23rd Jun 2026184 PMAQI
23rd Jun 2026265 PMAQI
23rd Jun 2026166 PMAQI
23rd Jun 2026257 PMAQI
23rd Jun 2026248 PMAQI
23rd Jun 2026259 PMAQI
23rd Jun 20262710 PMAQI
23rd Jun 20262411 PMAQI
24th Jun 20262212 AMAQI
24th Jun 2026231 AMAQI
24th Jun 2026222 AMAQI
24th Jun 2026233 AMAQI
24th Jun 2026234 AMAQI

20°C16/24°C

24th Jun 2026225 AMAQI
24th Jun 2026226 AMAQI
24th Jun 2026207 AMAQI
24th Jun 2026228 AMAQI
24th Jun 2026249 AMAQI
24th Jun 20262610 AMAQI
24th Jun 20262411 AMAQI
24th Jun 20262812 PMAQI
24th Jun 2026251 PMAQI
24th Jun 2026242 PMAQI
24th Jun 2026233 PMAQI
24th Jun 2026224 PMAQI
24th Jun 2026255 PMAQI
24th Jun 2026226 PMAQI
24th Jun 2026217 PMAQI
24th Jun 2026268 PMAQI
24th Jun 2026269 PMAQI
24th Jun 20262010 PMAQI
24th Jun 20262511 PMAQI
25th Jun 20262712 AMAQI
25th Jun 2026221 AMAQI
25th Jun 2026262 AMAQI
25th Jun 2026263 AMAQI
25th Jun 2026244 AMAQI

20°C15/26°C

25th Jun 2026225 AMAQI
25th Jun 2026226 AMAQI
25th Jun 2026207 AMAQI
25th Jun 2026228 AMAQI
25th Jun 2026249 AMAQI
25th Jun 20262410 AMAQI
25th Jun 20262711 AMAQI
25th Jun 20262612 PMAQI
25th Jun 2026271 PMAQI
25th Jun 2026232 PMAQI
25th Jun 2026243 PMAQI
25th Jun 2026224 PMAQI
25th Jun 2026245 PMAQI
25th Jun 2026216 PMAQI
25th Jun 2026207 PMAQI
25th Jun 2026248 PMAQI
25th Jun 2026369 PMAQI
25th Jun 20262810 PMAQI
25th Jun 20262811 PMAQI
26th Jun 20263012 AMAQI
26th Jun 2026351 AMAQI
26th Jun 2026192 AMAQI
26th Jun 2026233 AMAQI
26th Jun 2026224 AMAQI

22°C16/29°C

26th Jun 2026225 AMAQI
26th Jun 2026256 AMAQI
26th Jun 2026267 AMAQI
26th Jun 2026238 AMAQI
26th Jun 2026259 AMAQI
26th Jun 20262810 AMAQI
26th Jun 20263011 AMAQI
26th Jun 20262812 PMAQI
26th Jun 2026291 PMAQI
26th Jun 2026292 PMAQI
26th Jun 2026293 PMAQI
26th Jun 2026284 PMAQI
26th Jun 2026285 PMAQI
26th Jun 2026306 PMAQI
26th Jun 2026287 PMAQI
26th Jun 2026308 PMAQI
26th Jun 2026309 PMAQI
26th Jun 20263310 PMAQI
26th Jun 20262311 PMAQI
27th Jun 20262512 AMAQI
27th Jun 2026221 AMAQI
27th Jun 2026302 AMAQI
27th Jun 2026303 AMAQI
27th Jun 2026294 AMAQI

19°C17/22°C

27th Jun 2026285 AMAQI
27th Jun 2026306 AMAQI
27th Jun 2026287 AMAQI
27th Jun 2026288 AMAQI
27th Jun 2026289 AMAQI
27th Jun 20263310 AMAQI
27th Jun 20263211 AMAQI
27th Jun 20262412 PMAQI
27th Jun 2026321 PMAQI
27th Jun 2026242 PMAQI
27th Jun 2026293 PMAQI
27th Jun 2026274 PMAQI
27th Jun 2026285 PMAQI
27th Jun 2026286 PMAQI
27th Jun 2026287 PMAQI
27th Jun 2026298 PMAQI
27th Jun 2026299 PMAQI
27th Jun 20262410 PMAQI
27th Jun 20262811 PMAQI
28th Jun 20262612 AMAQI
28th Jun 2026361 AMAQI
28th Jun 2026272 AMAQI
28th Jun 2026263 AMAQI
28th Jun 2026284 AMAQI

21°C15/28°C

28th Jun 2026265 AMAQI
28th Jun 2026266 AMAQI
28th Jun 2026307 AMAQI
28th Jun 2026318 AMAQI
28th Jun 2026289 AMAQI
28th Jun 20262910 AMAQI
28th Jun 20262811 AMAQI
28th Jun 20262412 PMAQI
28th Jun 2026251 PMAQI
28th Jun 2026282 PMAQI
28th Jun 2026283 PMAQI
28th Jun 2026284 PMAQI
28th Jun 2026285 PMAQI
28th Jun 2026256 PMAQI
28th Jun 2026267 PMAQI
28th Jun 2026298 PMAQI
28th Jun 2026269 PMAQI
28th Jun 20262610 PMAQI
28th Jun 20263111 PMAQI
29th Jun 20264212 AMAQI
29th Jun 2026321 AMAQI
29th Jun 2026262 AMAQI
29th Jun 2026253 AMAQI
29th Jun 2026284 AMAQI

22°C15/29°C

29th Jun 2026215 AMAQI
29th Jun 2026236 AMAQI
29th Jun 2026227 AMAQI
29th Jun 2026228 AMAQI
29th Jun 2026259 AMAQI
29th Jun 20262810 AMAQI
29th Jun 20262911 AMAQI
29th Jun 20262612 PMAQI
29th Jun 2026271 PMAQI
29th Jun 2026262 PMAQI
29th Jun 2026243 PMAQI
29th Jun 2026244 PMAQI
29th Jun 2026245 PMAQI
29th Jun 2026246 PMAQI
29th Jun 2026247 PMAQI
29th Jun 2026268 PMAQI
29th Jun 2026289 PMAQI
29th Jun 20263110 PMAQI
29th Jun 20262411 PMAQI
30th Jun 20262512 AMAQI
30th Jun 2026261 AMAQI
30th Jun 2026262 AMAQI
30th Jun 2026343 AMAQI
30th Jun 2026244 AMAQI

23°C16/32°C

30th Jun 2026245 AMAQI
30th Jun 2026346 AMAQI
30th Jun 2026247 AMAQI
30th Jun 2026268 AMAQI
30th Jun 2026249 AMAQI
30th Jun 20262710 AMAQI
30th Jun 20262811 AMAQI
30th Jun 20263412 PMAQI
30th Jun 2026361 PMAQI
30th Jun 2026282 PMAQI
30th Jun 2026263 PMAQI
30th Jun 2026284 PMAQI
30th Jun 2026305 PMAQI
30th Jun 2026286 PMAQI
30th Jun 2026267 PMAQI
30th Jun 2026288 PMAQI
30th Jun 2026289 PMAQI
30th Jun 20262610 PMAQI
30th Jun 20261911 PMAQI
1st Jul 20261912 AMAQI
1st Jul 2026241 AMAQI
1st Jul 2026242 AMAQI
1st Jul 2026273 AMAQI
1st Jul 2026284 AMAQI

24°C17/33°C

1st Jul 2026255 AMAQI
1st Jul 2026266 AMAQI
1st Jul 2026267 AMAQI
1st Jul 2026268 AMAQI
1st Jul 2026279 AMAQI
1st Jul 20263210 AMAQI
1st Jul 20262811 AMAQI
1st Jul 20262612 PMAQI
1st Jul 2026301 PMAQI
1st Jul 2026282 PMAQI
1st Jul 2026303 PMAQI
1st Jul 2026284 PMAQI
1st Jul 2026285 PMAQI
1st Jul 2026266 PMAQI
1st Jul 2026267 PMAQI
1st Jul 2026268 PMAQI
1st Jul 2026269 PMAQI
1st Jul 20262010 PMAQI
1st Jul 20262011 PMAQI
2nd Jul 20262212 AMAQI
2nd Jul 2026221 AMAQI
2nd Jul 2026252 AMAQI
2nd Jul 2026243 AMAQI
2nd Jul 2026244 AMAQI

27°C22/35°C

2nd Jul 2026225 AMAQI
2nd Jul 2026226 AMAQI
2nd Jul 2026177 AMAQI
2nd Jul 2026308 AMAQI
2nd Jul 2026279 AMAQI
2nd Jul 20262910 AMAQI
2nd Jul 20263011 AMAQI
2nd Jul 20262912 PMAQI
2nd Jul 2026261 PMAQI
2nd Jul 2026322 PMAQI
2nd Jul 2026263 PMAQI
2nd Jul 2026364 PMAQI
2nd Jul 2026365 PMAQI
2nd Jul 2026566 PMAQI
2nd Jul 2026307 PMAQI
2nd Jul 2026408 PMAQI
2nd Jul 2026529 PMAQI
2nd Jul 20264010 PMAQI
2nd Jul 20262611 PMAQI
3rd Jul 20264012 AMAQI
3rd Jul 2026281 AMAQI
3rd Jul 2026282 AMAQI
3rd Jul 2026293 AMAQI
3rd Jul 2026274 AMAQI

27°C22/34°C

3rd Jul 2026285 AMAQI
3rd Jul 2026266 AMAQI
3rd Jul 2026367 AMAQI
3rd Jul 2026288 AMAQI
3rd Jul 2026309 AMAQI
3rd Jul 20262910 AMAQI
3rd Jul 20263011 AMAQI
3rd Jul 20263012 PMAQI
3rd Jul 2026321 PMAQI
3rd Jul 2026282 PMAQI
3rd Jul 2026283 PMAQI
3rd Jul 2026324 PMAQI
3rd Jul 2026285 PMAQI
3rd Jul 2026276 PMAQI
3rd Jul 2026287 PMAQI
3rd Jul 2026288 PMAQI
3rd Jul 2026269 PMAQI
3rd Jul 20262510 PMAQI
3rd Jul 20262811 PMAQI
4th Jul 20262812 AMAQI
4th Jul 2026261 AMAQI
4th Jul 2026302 AMAQI
4th Jul 2026283 AMAQI
4th Jul 2026274 AMAQI

26°C21/33°C

4th Jul 2026275 AMAQI
4th Jul 2026306 AMAQI
4th Jul 2026267 AMAQI
4th Jul 2026308 AMAQI
4th Jul 2026309 AMAQI
4th Jul 20262610 AMAQI
4th Jul 20263111 AMAQI
4th Jul 20262912 PMAQI
4th Jul 2026241 PMAQI
4th Jul 2026262 PMAQI
4th Jul 2026263 PMAQI
4th Jul 2026254 PMAQI
4th Jul 2026265 PMAQI
4th Jul 2026246 PMAQI
4th Jul 2026227 PMAQI
4th Jul 2026208 PMAQI
4th Jul 2026209 PMAQI
4th Jul 20262610 PMAQI
4th Jul 20262311 PMAQI
5th Jul 20262012 AMAQI
5th Jul 2026221 AMAQI
5th Jul 2026262 AMAQI
5th Jul 2026283 AMAQI
5th Jul 2026404 AMAQI

24°C19/30°C

5th Jul 2026305 AMAQI
5th Jul 2026256 AMAQI
5th Jul 2026247 AMAQI
5th Jul 2026268 AMAQI
5th Jul 2026239 AMAQI
5th Jul 20262810 AMAQI
5th Jul 20263011 AMAQI
5th Jul 20263012 PMAQI
5th Jul 2026321 PMAQI
5th Jul 2026282 PMAQI
5th Jul 2026263 PMAQI
5th Jul 2026324 PMAQI
5th Jul 2026265 PMAQI
5th Jul 2026256 PMAQI
5th Jul 2026267 PMAQI
5th Jul 2026208 PMAQI
5th Jul 2026209 PMAQI
5th Jul 20262010 PMAQI
5th Jul 20261911 PMAQI
6th Jul 20262012 AMAQI
6th Jul 2026221 AMAQI
6th Jul 2026352 AMAQI
6th Jul 2026253 AMAQI
6th Jul 2026224 AMAQI

22°C15/30°C

6th Jul 2026215 AMAQI
6th Jul 2026226 AMAQI
6th Jul 2026277 AMAQI
6th Jul 2026288 AMAQI
6th Jul 2026309 AMAQI
6th Jul 20263010 AMAQI
6th Jul 20262911 AMAQI
6th Jul 20263012 PMAQI
6th Jul 2026341 PMAQI
6th Jul 2026312 PMAQI
6th Jul 2026323 PMAQI
6th Jul 2026324 PMAQI
6th Jul 2026345 PMAQI
6th Jul 2026346 PMAQI
6th Jul 2026387 PMAQI
6th Jul 2026348 PMAQI
6th Jul 2026269 PMAQI
6th Jul 20262810 PMAQI
6th Jul 20262611 PMAQI
7th Jul 20262612 AMAQI
7th Jul 2026251 AMAQI
7th Jul 2026322 AMAQI
7th Jul 2026503 AMAQI
7th Jul 2026324 AMAQI

24°C16/32°C

7th Jul 2026315 AMAQI
7th Jul 2026306 AMAQI
7th Jul 2026287 AMAQI
7th Jul 2026288 AMAQI
7th Jul 2026289 AMAQI
7th Jul 20262810 AMAQI
7th Jul 20263011 AMAQI
7th Jul 20263412 PMAQI
7th Jul 2026341 PMAQI
7th Jul 2026302 PMAQI
7th Jul 2026303 PMAQI
7th Jul 2026304 PMAQI
7th Jul 2026325 PMAQI
7th Jul 2026326 PMAQI
7th Jul 2026307 PMAQI
7th Jul 2026288 PMAQI
7th Jul 2026309 PMAQI
7th Jul 20262810 PMAQI
7th Jul 20262811 PMAQI
8th Jul 20262612 AMAQI
8th Jul 2026241 AMAQI
8th Jul 2026292 AMAQI
8th Jul 2026313 AMAQI
8th Jul 2026284 AMAQI

25°C19/32°C

8th Jul 2026275 AMAQI
8th Jul 2026206 AMAQI
8th Jul 2026247 AMAQI
8th Jul 2026268 AMAQI
8th Jul 2026269 AMAQI
8th Jul 20262810 AMAQI
8th Jul 20263111 AMAQI
8th Jul 20262812 PMAQI
8th Jul 2026321 PMAQI
8th Jul 2026292 PMAQI
8th Jul 2026303 PMAQI
8th Jul 2026284 PMAQI
8th Jul 2026305 PMAQI
8th Jul 2026316 PMAQI
8th Jul 2026257 PMAQI
8th Jul 2026258 PMAQI
8th Jul 2026259 PMAQI
8th Jul 20262310 PMAQI
8th Jul 20262711 PMAQI
9th Jul 20262912 AMAQI
9th Jul 2026291 AMAQI
9th Jul 2026252 AMAQI
9th Jul 2026263 AMAQI
9th Jul 2026264 AMAQI

25°C18/33°C

9th Jul 2026295 AMAQI
9th Jul 2026256 AMAQI
9th Jul 2026267 AMAQI
9th Jul 2026268 AMAQI
9th Jul 2026309 AMAQI
9th Jul 20262910 AMAQI
9th Jul 20263011 AMAQI
9th Jul 20263212 PMAQI
9th Jul 2026291 PMAQI
9th Jul 2026302 PMAQI
9th Jul 2026273 PMAQI
9th Jul 2026304 PMAQI
9th Jul 2026235 PMAQI
9th Jul 2026286 PMAQI
9th Jul 2026227 PMAQI
9th Jul 2026328 PMAQI
9th Jul 2026329 PMAQI
9th Jul 20262610 PMAQI
9th Jul 20262911 PMAQI
10th Jul 20262612 AMAQI
10th Jul 2026251 AMAQI
10th Jul 2026242 AMAQI
10th Jul 2026253 AMAQI
10th Jul 2026324 AMAQI

23°C20/29°C

10th Jul 2026265 AMAQI
10th Jul 2026326 AMAQI
10th Jul 2026347 AMAQI
10th Jul 2026348 AMAQI
10th Jul 2026349 AMAQI
10th Jul 20263510 AMAQI
10th Jul 20262711 AMAQI
10th Jul 20262612 PMAQI
10th Jul 2026331 PMAQI
10th Jul 2026362 PMAQI
10th Jul 2026323 PMAQI
10th Jul 2026324 PMAQI
10th Jul 2026365 PMAQI
10th Jul 2026366 PMAQI
10th Jul 2026367 PMAQI
10th Jul 2026368 PMAQI
10th Jul 2026429 PMAQI
10th Jul 20264010 PMAQI
10th Jul 20264011 PMAQI
11th Jul 20262812 AMAQI
11th Jul 2026341 AMAQI
11th Jul 2026232 AMAQI
11th Jul 2026303 AMAQI
11th Jul 2026324 AMAQI

22°C18/29°C

11th Jul 2026345 AMAQI
11th Jul 2026316 AMAQI
11th Jul 2026287 AMAQI
11th Jul 2026368 AMAQI
11th Jul 2026319 AMAQI
11th Jul 20263410 AMAQI
11th Jul 20263611 AMAQI
11th Jul 20263412 PMAQI
11th Jul 2026341 PMAQI
11th Jul 2026342 PMAQI
11th Jul 2026283 PMAQI
11th Jul 2026324 PMAQI
11th Jul 2026325 PMAQI
11th Jul 2026306 PMAQI
11th Jul 2026317 PMAQI
11th Jul 2026328 PMAQI
11th Jul 2026269 PMAQI
11th Jul 20262810 PMAQI
11th Jul 20262711 PMAQI
12th Jul 20262812 AMAQI
12th Jul 2026261 AMAQI
12th Jul 2026242 AMAQI
12th Jul 2026273 AMAQI
12th Jul 2026564 AMAQI

21°C15/28°C

12th Jul 2026345 AMAQI
12th Jul 2026306 AMAQI
12th Jul 2026307 AMAQI
12th Jul 2026428 AMAQI
12th Jul 2026609 AMAQI
12th Jul 20263210 AMAQI
12th Jul 20266011 AMAQI
12th Jul 20263212 PMAQI
12th Jul 2026261 PMAQI
12th Jul 2026302 PMAQI
12th Jul 2026303 PMAQI
12th Jul 2026444 PMAQI
12th Jul 2026405 PMAQI
12th Jul 2026306 PMAQI
12th Jul 2026247 PMAQI
12th Jul 2026318 PMAQI
12th Jul 2026309 PMAQI
12th Jul 20262610 PMAQI
12th Jul 20262911 PMAQI
13th Jul 20262412 AMAQI
13th Jul 2026221 AMAQI
13th Jul 2026242 AMAQI
13th Jul 2026283 AMAQI
13th Jul 2026424 AMAQI

23°C15/31°C

13th Jul 2026345 AMAQI
13th Jul 2026406 AMAQI
13th Jul 2026307 AMAQI
13th Jul 2026358 AMAQI
13th Jul 2026329 AMAQI
13th Jul 20264610 AMAQI
13th Jul 20264711 AMAQI
13th Jul 20264612 PMAQI
13th Jul 2026301 PMAQI
13th Jul 2026312 PMAQI
13th Jul 2026273 PMAQI
13th Jul 2026314 PMAQI
13th Jul 2026325 PMAQI
13th Jul 2026306 PMAQI
13th Jul 2026297 PMAQI
13th Jul 2026368 PMAQI
13th Jul 2026349 PMAQI
13th Jul 20263410 PMAQI
13th Jul 20262611 PMAQI
14th Jul 20262812 AMAQI
14th Jul 2026241 AMAQI
14th Jul 2026342 AMAQI
14th Jul 2026343 AMAQI
14th Jul 2026364 AMAQI

24°C17/32°C

14th Jul 2026365 AMAQI
5 AM
14th Jul 2026306 AMAQI
14th Jul 2026337 AMAQI
14th Jul 2026318 AMAQI
14th Jul 2026409 AMAQI
14th Jul 20263810 AMAQI
14th Jul 20263611 AMAQI
14th Jul 20263812 PMAQI
12 PM
14th Jul 2026341 PMAQI
14th Jul 2026342 PMAQI
14th Jul 2026313 PMAQI
14th Jul 2026324 PMAQI
14th Jul 2026285 PMAQI
14th Jul 2026316 PMAQI
14th Jul 2026327 PMAQI
14th Jul 2026548 PMAQI
8 PM
14th Jul 2026569 PMAQI
14th Jul 20262610 PMAQI
14th Jul 20262411 PMAQI
12 AM
4 AM

26°C20/34°C

Day time
Avg. Highest Time
11 AM

30AQI

1 hours / Day
30 hours / Month
Avg. Lowest Time
7 AM

24AQI

1 hours / Day
30 hours / Month
In the last 30 days, during the daytime, the highest AQI was between 11 AM to 11 AM (Avg. 30), while the lowest AQI was between 7 AM to 7 AM (Avg. 24).
Night time
Avg. Highest Time
9 PM

28AQI

1 hours / Day
30 hours / Month
Avg. Lowest Time
12 AM - 1 AM

24AQI

2 hours / Day
60 hours / Month
In the last 30 days, during the daytime, the highest AQI was between 9 PM to 9 PM (Avg. 28), while the lowest AQI was between 12 AM to 1 AM (Avg. 24).

2026 Days Vs Air Quality

Island Of Montreal Center, Mont Royal, Quebec, Canada

2026

93%

178

7%

13

Total number of days with different AQI categories in last 195 days in 2026 (170 days remaining)

Good
178 Days
Moderate
13 Days
Poor
0 Days
Unhealthy
0 Days
Severe
0 Days
Hazardous
0 Days

Under WHO’s Safe Air Quality Limits: 93%

Health Risk Level:

Very Low

In 2026, 93% of 195 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

Island Of Montreal Center, Mont Royal, Quebec, 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
18AQI (US)
2nd January 2026
24AQI (US)
3rd January 2026
15AQI (US)
4th January 2026
44AQI (US)
5th January 2026
37AQI (US)
6th January 2026
59AQI (US)
7th January 2026
63AQI (US)
8th January 2026
71AQI (US)
9th January 2026
41AQI (US)
10th January 2026
15AQI (US)
11th January 2026
18AQI (US)
12th January 2026
20AQI (US)
13th January 2026
47AQI (US)
14th January 2026
39AQI (US)
15th January 2026
29AQI (US)
16th January 2026
13AQI (US)
17th January 2026
35AQI (US)
18th January 2026
35AQI (US)
19th January 2026
41AQI (US)
20th January 2026
20AQI (US)
21st January 2026
22AQI (US)
22nd January 2026
49AQI (US)
23rd January 2026
53AQI (US)
24th January 2026
49AQI (US)
25th January 2026
46AQI (US)
26th January 2026
47AQI (US)
27th January 2026
44AQI (US)
28th January 2026
47AQI (US)
29th January 2026
52AQI (US)
30th January 2026
49AQI (US)
31st January 2026
45AQI (US)
1st February 2026
48AQI (US)
2nd February 2026
50AQI (US)
3rd February 2026
50AQI (US)
4th February 2026
53AQI (US)
5th February 2026
49AQI (US)
6th February 2026
40AQI (US)
7th February 2026
38AQI (US)
8th February 2026
45AQI (US)
9th February 2026
46AQI (US)
10th February 2026
46AQI (US)
11th February 2026
47AQI (US)
12th February 2026
43AQI (US)
13th February 2026
51AQI (US)
14th February 2026
49AQI (US)
15th February 2026
41AQI (US)
16th February 2026
44AQI (US)
17th February 2026
45AQI (US)
18th February 2026
42AQI (US)
19th February 2026
40AQI (US)
20th February 2026
42AQI (US)
21st February 2026
36AQI (US)
22nd February 2026
35AQI (US)
23rd February 2026
41AQI (US)
24th February 2026
45AQI (US)
25th February 2026
42AQI (US)
26th February 2026
36AQI (US)
27th February 2026
35AQI (US)
28th February 2026
38AQI (US)
1st March 2026
41AQI (US)
2nd March 2026
53AQI (US)
3rd March 2026
46AQI (US)
4th March 2026
45AQI (US)
5th March 2026
42AQI (US)
6th March 2026
39AQI (US)
7th March 2026
40AQI (US)
8th March 2026
39AQI (US)
9th March 2026
40AQI (US)
10th March 2026
34AQI (US)
11th March 2026
44AQI (US)
12th March 2026
42AQI (US)
13th March 2026
40AQI (US)
14th March 2026
37AQI (US)
15th March 2026
36AQI (US)
16th March 2026
37AQI (US)
17th March 2026
35AQI (US)
18th March 2026
32AQI (US)
19th March 2026
32AQI (US)
20th March 2026
37AQI (US)
21st March 2026
36AQI (US)
22nd March 2026
36AQI (US)
23rd March 2026
40AQI (US)
24th March 2026
36AQI (US)
25th March 2026
34AQI (US)
26th March 2026
29AQI (US)
27th March 2026
30AQI (US)
28th March 2026
35AQI (US)
29th March 2026
31AQI (US)
30th March 2026
28AQI (US)
31st March 2026
25AQI (US)
1st April 2026
33AQI (US)
2nd April 2026
34AQI (US)
3rd April 2026
27AQI (US)
4th April 2026
32AQI (US)
5th April 2026
29AQI (US)
6th April 2026
28AQI (US)
7th April 2026
27AQI (US)
8th April 2026
31AQI (US)
9th April 2026
28AQI (US)
10th April 2026
31AQI (US)
11th April 2026
33AQI (US)
12th April 2026
27AQI (US)
13th April 2026
33AQI (US)
14th April 2026
33AQI (US)
15th April 2026
33AQI (US)
16th April 2026
30AQI (US)
17th April 2026
18th April 2026
34AQI (US)
19th April 2026
33AQI (US)
20th April 2026
29AQI (US)
21st April 2026
28AQI (US)
22nd April 2026
23rd April 2026
23AQI (US)
24th April 2026
28AQI (US)
25th April 2026
31AQI (US)
26th April 2026
33AQI (US)
27th April 2026
28AQI (US)
28th April 2026
25AQI (US)
29th April 2026
23AQI (US)
30th April 2026
27AQI (US)
1st May 2026
27AQI (US)
2nd May 2026
24AQI (US)
3rd May 2026
21AQI (US)
4th May 2026
30AQI (US)
5th May 2026
32AQI (US)
6th May 2026
31AQI (US)
7th May 2026
29AQI (US)
8th May 2026
27AQI (US)
9th May 2026
10th May 2026
34AQI (US)
11th May 2026
32AQI (US)
12th May 2026
28AQI (US)
13th May 2026
28AQI (US)
14th May 2026
24AQI (US)
15th May 2026
46AQI (US)
16th May 2026
53AQI (US)
17th May 2026
56AQI (US)
18th May 2026
57AQI (US)
19th May 2026
54AQI (US)
20th May 2026
49AQI (US)
21st May 2026
44AQI (US)
22nd May 2026
45AQI (US)
23rd May 2026
51AQI (US)
24th May 2026
48AQI (US)
25th May 2026
45AQI (US)
26th May 2026
29AQI (US)
27th May 2026
25AQI (US)
28th May 2026
18AQI (US)
29th May 2026
19AQI (US)
30th May 2026
19AQI (US)
31st May 2026
26AQI (US)
1st June 2026
26AQI (US)
2nd June 2026
24AQI (US)
3rd June 2026
20AQI (US)
4th June 2026
24AQI (US)
5th June 2026
27AQI (US)
6th June 2026
25AQI (US)
7th June 2026
20AQI (US)
8th June 2026
23AQI (US)
9th June 2026
25AQI (US)
10th June 2026
27AQI (US)
11th June 2026
23AQI (US)
12th June 2026
26AQI (US)
13th June 2026
21AQI (US)
14th June 2026
23AQI (US)
15th June 2026
23AQI (US)
16th June 2026
25AQI (US)
17th June 2026
25AQI (US)
18th June 2026
25AQI (US)
19th June 2026
23AQI (US)
20th June 2026
23AQI (US)
21st June 2026
20AQI (US)
22nd June 2026
23AQI (US)
23rd June 2026
21AQI (US)
24th June 2026
23AQI (US)
25th June 2026
25AQI (US)
26th June 2026
27AQI (US)
27th June 2026
28AQI (US)
28th June 2026
28AQI (US)
29th June 2026
26AQI (US)
30th June 2026
27AQI (US)
1st July 2026
26AQI (US)
2nd July 2026
30AQI (US)
3rd July 2026
29AQI (US)
4th July 2026
26AQI (US)
5th July 2026
26AQI (US)
6th July 2026
29AQI (US)
7th July 2026
31AQI (US)
8th July 2026
27AQI (US)
9th July 2026
28AQI (US)
10th July 2026
32AQI (US)
11th July 2026
31AQI (US)
12th July 2026
34AQI (US)
13th July 2026
33AQI (US)
14th July 2026
15th July 2026
16th July 2026
17th July 2026
18th July 2026
19th July 2026
20th July 2026
21st July 2026
22nd July 2026
23rd July 2026
24th July 2026
25th July 2026
26th July 2026
27th July 2026
28th July 2026
29th July 2026
30th July 2026
31st July 2026
1st August 2026
2nd August 2026
3rd August 2026
4th August 2026
5th August 2026
6th August 2026
7th August 2026
8th August 2026
9th August 2026
10th August 2026
11th August 2026
12th August 2026
13th August 2026
14th August 2026
15th August 2026
16th August 2026
17th August 2026
18th August 2026
19th August 2026
20th August 2026
21st August 2026
22nd August 2026
23rd August 2026
24th August 2026
25th August 2026
26th August 2026
27th August 2026
28th August 2026
29th August 2026
30th August 2026
31st August 2026
1st September 2026
2nd September 2026
3rd September 2026
4th September 2026
5th September 2026
6th September 2026
7th September 2026
8th September 2026
9th September 2026
10th September 2026
11th September 2026
12th September 2026
13th September 2026
14th September 2026
15th September 2026
16th September 2026
17th September 2026
18th September 2026
19th September 2026
20th September 2026
21st September 2026
22nd September 2026
23rd September 2026
24th September 2026
25th September 2026
26th September 2026
27th September 2026
28th September 2026
29th September 2026
30th September 2026
1st October 2026
2nd October 2026
3rd October 2026
4th October 2026
5th October 2026
6th October 2026
7th October 2026
8th October 2026
9th October 2026
10th October 2026
11th October 2026
12th October 2026
13th October 2026
14th October 2026
15th October 2026
16th October 2026
17th October 2026
18th October 2026
19th October 2026
20th October 2026
21st October 2026
22nd October 2026
23rd October 2026
24th October 2026
25th October 2026
26th October 2026
27th October 2026
28th October 2026
29th October 2026
30th October 2026
31st October 2026
1st November 2026
2nd November 2026
3rd November 2026
4th November 2026
5th November 2026
6th November 2026
7th November 2026
8th November 2026
9th November 2026
10th November 2026
11th November 2026
12th November 2026
13th November 2026
14th November 2026
15th November 2026
16th November 2026
17th November 2026
18th November 2026
19th November 2026
20th November 2026
21st November 2026
22nd November 2026
23rd November 2026
24th November 2026
25th November 2026
26th November 2026
27th November 2026
28th November 2026
29th November 2026
30th November 2026
1st December 2026
2nd December 2026
3rd December 2026
4th December 2026
5th December 2026
6th December 2026
7th December 2026
8th December 2026
9th December 2026
10th December 2026
11th December 2026
12th December 2026
13th December 2026
14th December 2026
15th December 2026
16th December 2026
17th December 2026
18th December 2026
19th December 2026
20th December 2026
21st December 2026
22nd December 2026
23rd December 2026
24th December 2026
25th December 2026
26th December 2026
27th December 2026
28th December 2026
29th December 2026
30th December 2026
31st December 2026

38AQI (US)

43AQI (US)

37AQI (US)

30AQI (US)

35AQI (US)

24AQI (US)

29AQI (US)

No. of days

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

202634AQI (US)

26
5
26
2
30
1
28
25
5
30
13
178
13

Highest AQI (US) recorded in

February

43AQI (US)

Lowest AQI (US) recorded in

June

24AQI (US)

202532AQI (US)

27
4
25
3
27
4
30
31
23
7
26
5
23
8
30
28
3
26
4
26
5
322
43

Highest AQI (US) recorded in

July

40AQI (US)

Lowest AQI (US) recorded in

April

23AQI (US)

202432AQI (US)

16
1
2
2
12
26
3
27
4
21
10
19
10
31
30
25
5
1
212
32
1

Highest AQI (US) recorded in

February

50AQI (US)

Lowest AQI (US) recorded in

March

12AQI (US)

202334AQI (US)

3
24
7
27
7

Highest AQI (US) recorded in

December

35AQI (US)

Lowest AQI (US) recorded in

November

21AQI (US)

202014AQI (US)

1
1
1
2
5

Highest AQI (US) recorded in

May

31AQI (US)

Lowest AQI (US) recorded in

September

0AQI (US)

Most & Least Polluted Years Over the Last 5 Years

Most Polluted Year Recorded
2026(Avg.)
34AQI (US)
Least Polluted Year Recorded
2020(Avg.)
14AQI (US)

Island Of Montreal Center's annual 2026 AQI (US) (34) shows an average percentage change of 38.8% (worsened AQI (US)) compared to previous years: 2020 (14), 2023 (34), 2024 (32), 2025 (32).