Ottawa Downtown, Ottawa, 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
Ottawa Downtown, Ottawa, Ontario, Canada
2022
2023
2024
2025
2026
AQI
.
Days
AQI Trends: Highest and Lowest
Highest AQI recorded on
20th Aug 2023
76AQILowest AQI recorded on
9th Aug 2024
14AQISame Day Analysis (10th August):
On this day, AQI across the 5 years varied significantly: 2026 ranks 3rd highest AQI at 31 of Good air quality, showing improvement over 2025 and 2023 on the same day.
Day & Night AQI Trend: 10th Aug - 11th Aug 2026
Ottawa Downtown, Ottawa, Ontario, Canada
AQI
Day
Night
.
5 AM10th Aug 2026
8 PM
4 AM11th Aug 2026
Day time
Avg. Highest Time
7PM10th Aug
42AQI
Avg. Lowest Time
2PM10th Aug
21AQI
Night time
Avg. Highest Time
11PM10th Aug
44AQI
Avg. Lowest Time
4AM11th Aug
25AQI
In the last 24 hours,
Ottawa Downtown's AQI reached its highest point of 44 at 11 PM during the Night, while the lowest point, 21, was recorded at 2 PM during the Day between 10th Aug and 11th Aug 2026.
Day & Night AQI Trend : Jul - Aug 2026
Ottawa Downtown, Ottawa, Ontario, Canada
JulAug
13th - 14th14th - 15th15th - 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
Day
Night
13th Jul 2026385 AMAQI
13th Jul 2026366 AMAQI
13th Jul 2026467 AMAQI
13th Jul 2026518 AMAQI
13th Jul 2026559 AMAQI
13th Jul 20266210 AMAQI
13th Jul 20266411 AMAQI
13th Jul 20267212 PMAQI
13th Jul 2026721 PMAQI
13th Jul 2026692 PMAQI
13th Jul 2026663 PMAQI
13th Jul 2026644 PMAQI
13th Jul 2026585 PMAQI
13th Jul 2026526 PMAQI
13th Jul 2026497 PMAQI
13th Jul 2026468 PMAQI
13th Jul 2026449 PMAQI
13th Jul 20264610 PMAQI
13th Jul 20264411 PMAQI
14th Jul 20264612 AMAQI
14th Jul 2026421 AMAQI
14th Jul 2026362 AMAQI
14th Jul 2026363 AMAQI
14th Jul 2026364 AMAQI
24°C17/30°C
14th Jul 2026365 AMAQI
14th Jul 2026366 AMAQI
14th Jul 2026387 AMAQI
14th Jul 2026388 AMAQI
14th Jul 2026389 AMAQI
14th Jul 20264010 AMAQI
14th Jul 20263811 AMAQI
14th Jul 20264112 PMAQI
14th Jul 2026401 PMAQI
14th Jul 2026362 PMAQI
14th Jul 2026363 PMAQI
14th Jul 2026404 PMAQI
14th Jul 2026405 PMAQI
14th Jul 2026426 PMAQI
14th Jul 2026577 PMAQI
14th Jul 2026488 PMAQI
14th Jul 2026639 PMAQI
14th Jul 20268110 PMAQI
14th Jul 20267511 PMAQI
15th Jul 20266912 AMAQI
15th Jul 2026671 AMAQI
15th Jul 2026672 AMAQI
15th Jul 2026653 AMAQI
15th Jul 2026654 AMAQI
28°C22/36°C
15th Jul 2026625 AMAQI
15th Jul 2026576 AMAQI
15th Jul 2026557 AMAQI
15th Jul 2026508 AMAQI
15th Jul 2026469 AMAQI
15th Jul 20265210 AMAQI
15th Jul 20265511 AMAQI
15th Jul 20264512 PMAQI
15th Jul 2026381 PMAQI
15th Jul 2026362 PMAQI
15th Jul 2026333 PMAQI
15th Jul 2026984 PMAQI
15th Jul 2026335 PMAQI
15th Jul 2026316 PMAQI
15th Jul 2026307 PMAQI
15th Jul 2026318 PMAQI
15th Jul 2026329 PMAQI
15th Jul 20263010 PMAQI
15th Jul 20263311 PMAQI
16th Jul 20263812 AMAQI
16th Jul 2026381 AMAQI
16th Jul 2026442 AMAQI
16th Jul 2026483 AMAQI
16th Jul 2026544 AMAQI
24°C20/29°C
16th Jul 2026565 AMAQI
16th Jul 2026626 AMAQI
16th Jul 2026667 AMAQI
16th Jul 2026768 AMAQI
16th Jul 2026879 AMAQI
16th Jul 20268710 AMAQI
16th Jul 20266811 AMAQI
16th Jul 20267112 PMAQI
16th Jul 2026671 PMAQI
16th Jul 2026722 PMAQI
16th Jul 2026323 PMAQI
16th Jul 2026294 PMAQI
16th Jul 2026305 PMAQI
16th Jul 2026306 PMAQI
16th Jul 2026247 PMAQI
16th Jul 2026308 PMAQI
16th Jul 2026309 PMAQI
16th Jul 20262810 PMAQI
16th Jul 20262811 PMAQI
17th Jul 20262612 AMAQI
17th Jul 2026261 AMAQI
17th Jul 2026252 AMAQI
17th Jul 2026183 AMAQI
17th Jul 2026194 AMAQI
22°C18/29°C
17th Jul 2026215 AMAQI
17th Jul 2026216 AMAQI
17th Jul 2026237 AMAQI
17th Jul 2026228 AMAQI
17th Jul 2026259 AMAQI
17th Jul 20262610 AMAQI
17th Jul 20262611 AMAQI
17th Jul 20262612 PMAQI
17th Jul 2026381 PMAQI
17th Jul 2026252 PMAQI
17th Jul 2026213 PMAQI
17th Jul 2026214 PMAQI
17th Jul 2026225 PMAQI
17th Jul 2026206 PMAQI
17th Jul 2026207 PMAQI
17th Jul 2026208 PMAQI
17th Jul 2026209 PMAQI
17th Jul 20262210 PMAQI
17th Jul 20262011 PMAQI
18th Jul 20261812 AMAQI
18th Jul 2026201 AMAQI
18th Jul 2026592 AMAQI
18th Jul 2026193 AMAQI
18th Jul 2026194 AMAQI
21°C14/29°C
18th Jul 2026195 AMAQI
18th Jul 2026216 AMAQI
18th Jul 2026387 AMAQI
18th Jul 2026468 AMAQI
18th Jul 2026449 AMAQI
18th Jul 20265210 AMAQI
18th Jul 20264011 AMAQI
18th Jul 20264412 PMAQI
18th Jul 2026521 PMAQI
18th Jul 2026562 PMAQI
18th Jul 2026653 PMAQI
18th Jul 2026634 PMAQI
18th Jul 2026665 PMAQI
18th Jul 2026606 PMAQI
18th Jul 20261167 PMAQI
18th Jul 2026298 PMAQI
18th Jul 2026299 PMAQI
18th Jul 20263110 PMAQI
18th Jul 20262711 PMAQI
19th Jul 20262912 AMAQI
19th Jul 2026291 AMAQI
19th Jul 2026382 AMAQI
19th Jul 2026523 AMAQI
19th Jul 2026634 AMAQI
19°C16/24°C
19th Jul 2026545 AMAQI
19th Jul 2026296 AMAQI
19th Jul 2026207 AMAQI
19th Jul 2026268 AMAQI
19th Jul 2026269 AMAQI
19th Jul 20263610 AMAQI
19th Jul 20265011 AMAQI
19th Jul 20262712 PMAQI
19th Jul 2026381 PMAQI
19th Jul 2026242 PMAQI
19th Jul 2026243 PMAQI
19th Jul 2026244 PMAQI
19th Jul 2026265 PMAQI
19th Jul 2026506 PMAQI
19th Jul 2026337 PMAQI
19th Jul 2026268 PMAQI
19th Jul 2026269 PMAQI
19th Jul 20262210 PMAQI
19th Jul 20262211 PMAQI
20th Jul 20262112 AMAQI
20th Jul 2026181 AMAQI
20th Jul 2026642 AMAQI
20th Jul 2026223 AMAQI
20th Jul 2026244 AMAQI
18°C13/25°C
20th Jul 2026225 AMAQI
20th Jul 2026246 AMAQI
20th Jul 2026247 AMAQI
20th Jul 2026248 AMAQI
20th Jul 2026309 AMAQI
20th Jul 20262510 AMAQI
20th Jul 20262711 AMAQI
20th Jul 20262512 PMAQI
20th Jul 2026241 PMAQI
20th Jul 2026232 PMAQI
20th Jul 2026233 PMAQI
20th Jul 2026264 PMAQI
20th Jul 2026225 PMAQI
20th Jul 2026246 PMAQI
20th Jul 2026267 PMAQI
20th Jul 2026268 PMAQI
20th Jul 2026409 PMAQI
20th Jul 20264610 PMAQI
21st Jul 20264412 AMAQI
21st Jul 2026461 AMAQI
21st Jul 2026382 AMAQI
21st Jul 2026383 AMAQI
21st Jul 2026324 AMAQI
20°C14/29°C
21st Jul 2026525 AMAQI
21st Jul 2026366 AMAQI
21st Jul 2026517 AMAQI
21st Jul 2026278 AMAQI
21st Jul 2026549 AMAQI
21st Jul 20264010 AMAQI
21st Jul 20264411 AMAQI
21st Jul 20265512 PMAQI
21st Jul 2026621 PMAQI
21st Jul 2026622 PMAQI
21st Jul 2026643 PMAQI
21st Jul 2026624 PMAQI
21st Jul 2026745 PMAQI
21st Jul 2026486 PMAQI
21st Jul 2026277 PMAQI
21st Jul 2026248 PMAQI
21st Jul 2026229 PMAQI
21st Jul 20262510 PMAQI
21st Jul 20262711 PMAQI
22nd Jul 20262712 AMAQI
22nd Jul 2026331 AMAQI
22nd Jul 2026272 AMAQI
22nd Jul 2026233 AMAQI
22nd Jul 2026294 AMAQI
21°C18/25°C
22nd Jul 2026295 AMAQI
22nd Jul 2026296 AMAQI
22nd Jul 2026287 AMAQI
22nd Jul 2026248 AMAQI
22nd Jul 2026269 AMAQI
22nd Jul 20262810 AMAQI
22nd Jul 20262611 AMAQI
22nd Jul 20262212 PMAQI
22nd Jul 2026241 PMAQI
22nd Jul 2026252 PMAQI
22nd Jul 2026203 PMAQI
22nd Jul 2026224 PMAQI
22nd Jul 2026215 PMAQI
22nd Jul 2026226 PMAQI
22nd Jul 2026257 PMAQI
22nd Jul 2026268 PMAQI
22nd Jul 2026269 PMAQI
22nd Jul 20262110 PMAQI
22nd Jul 20261811 PMAQI
23rd Jul 20262012 AMAQI
23rd Jul 2026221 AMAQI
23rd Jul 2026192 AMAQI
23rd Jul 2026203 AMAQI
23rd Jul 2026194 AMAQI
17°C13/20°C
23rd Jul 2026205 AMAQI
23rd Jul 2026206 AMAQI
23rd Jul 2026227 AMAQI
23rd Jul 2026268 AMAQI
23rd Jul 2026229 AMAQI
23rd Jul 20262610 AMAQI
23rd Jul 20262711 AMAQI
23rd Jul 20262412 PMAQI
23rd Jul 2026221 PMAQI
23rd Jul 2026202 PMAQI
23rd Jul 2026253 PMAQI
23rd Jul 2026244 PMAQI
23rd Jul 2026425 PMAQI
23rd Jul 2026556 PMAQI
23rd Jul 2026507 PMAQI
23rd Jul 2026608 PMAQI
23rd Jul 2026469 PMAQI
23rd Jul 20262510 PMAQI
23rd Jul 20262511 PMAQI
24th Jul 20262512 AMAQI
24th Jul 2026231 AMAQI
24th Jul 2026252 AMAQI
24th Jul 2026253 AMAQI
24th Jul 2026264 AMAQI
18°C11/27°C
24th Jul 2026255 AMAQI
24th Jul 2026256 AMAQI
24th Jul 2026267 AMAQI
24th Jul 2026268 AMAQI
24th Jul 2026289 AMAQI
24th Jul 20262710 AMAQI
24th Jul 20262611 AMAQI
24th Jul 20262712 PMAQI
24th Jul 2026341 PMAQI
24th Jul 2026242 PMAQI
24th Jul 2026363 PMAQI
24th Jul 2026254 PMAQI
24th Jul 2026215 PMAQI
24th Jul 2026296 PMAQI
24th Jul 2026247 PMAQI
24th Jul 2026248 PMAQI
24th Jul 2026259 PMAQI
24th Jul 20262310 PMAQI
24th Jul 20262311 PMAQI
25th Jul 20262512 AMAQI
25th Jul 2026251 AMAQI
25th Jul 2026232 AMAQI
25th Jul 2026363 AMAQI
25th Jul 2026224 AMAQI
21°C14/30°C
25th Jul 2026215 AMAQI
25th Jul 2026256 AMAQI
25th Jul 2026237 AMAQI
25th Jul 2026258 AMAQI
25th Jul 2026239 AMAQI
25th Jul 20262510 AMAQI
25th Jul 20262311 AMAQI
25th Jul 20262312 PMAQI
25th Jul 2026221 PMAQI
25th Jul 2026212 PMAQI
25th Jul 2026213 PMAQI
25th Jul 2026214 PMAQI
25th Jul 2026215 PMAQI
25th Jul 2026216 PMAQI
25th Jul 2026217 PMAQI
25th Jul 2026228 PMAQI
25th Jul 2026219 PMAQI
25th Jul 20262310 PMAQI
25th Jul 20262111 PMAQI
26th Jul 20263212 AMAQI
26th Jul 2026381 AMAQI
26th Jul 2026382 AMAQI
26th Jul 2026383 AMAQI
26th Jul 2026384 AMAQI
22°C13/31°C
26th Jul 2026365 AMAQI
26th Jul 2026386 AMAQI
26th Jul 2026387 AMAQI
26th Jul 2026368 AMAQI
26th Jul 2026389 AMAQI
26th Jul 20264210 AMAQI
26th Jul 20263611 AMAQI
26th Jul 20263812 PMAQI
26th Jul 2026381 PMAQI
26th Jul 2026292 PMAQI
26th Jul 2026273 PMAQI
26th Jul 2026254 PMAQI
26th Jul 2026255 PMAQI
26th Jul 2026276 PMAQI
26th Jul 2026257 PMAQI
26th Jul 2026278 PMAQI
26th Jul 2026279 PMAQI
26th Jul 20262510 PMAQI
26th Jul 20262711 PMAQI
27th Jul 20263812 AMAQI
27th Jul 2026401 AMAQI
27th Jul 2026462 AMAQI
27th Jul 2026483 AMAQI
27th Jul 2026464 AMAQI
23°C16/29°C
27th Jul 2026445 AMAQI
27th Jul 2026466 AMAQI
27th Jul 2026427 AMAQI
27th Jul 2026448 AMAQI
27th Jul 2026429 AMAQI
27th Jul 20264610 AMAQI
27th Jul 20265011 AMAQI
27th Jul 20264612 PMAQI
27th Jul 2026501 PMAQI
27th Jul 2026482 PMAQI
27th Jul 2026483 PMAQI
27th Jul 2026444 PMAQI
27th Jul 2026445 PMAQI
27th Jul 2026426 PMAQI
27th Jul 2026427 PMAQI
27th Jul 2026448 PMAQI
27th Jul 2026449 PMAQI
27th Jul 20264410 PMAQI
27th Jul 20264411 PMAQI
28th Jul 20264412 AMAQI
28th Jul 2026401 AMAQI
28th Jul 2026442 AMAQI
28th Jul 2026423 AMAQI
28th Jul 2026424 AMAQI
25°C18/32°C
28th Jul 2026465 AMAQI
28th Jul 2026486 AMAQI
28th Jul 2026467 AMAQI
28th Jul 2026468 AMAQI
28th Jul 2026429 AMAQI
28th Jul 20264010 AMAQI
28th Jul 20263111 AMAQI
28th Jul 20263112 PMAQI
28th Jul 2026421 PMAQI
28th Jul 2026402 PMAQI
28th Jul 2026403 PMAQI
28th Jul 2026364 PMAQI
28th Jul 2026315 PMAQI
28th Jul 2026296 PMAQI
28th Jul 2026277 PMAQI
28th Jul 2026298 PMAQI
28th Jul 2026279 PMAQI
28th Jul 20262910 PMAQI
28th Jul 20263111 PMAQI
29th Jul 20262712 AMAQI
29th Jul 2026381 AMAQI
29th Jul 2026442 AMAQI
29th Jul 2026463 AMAQI
29th Jul 2026424 AMAQI
21°C19/22°C
29th Jul 2026505 AMAQI
29th Jul 2026506 AMAQI
29th Jul 2026467 AMAQI
29th Jul 2026448 AMAQI
29th Jul 2026429 AMAQI
29th Jul 20263810 AMAQI
29th Jul 20262911 AMAQI
29th Jul 20262912 PMAQI
29th Jul 2026291 PMAQI
29th Jul 2026272 PMAQI
29th Jul 2026253 PMAQI
29th Jul 2026254 PMAQI
29th Jul 2026255 PMAQI
29th Jul 2026266 PMAQI
29th Jul 2026237 PMAQI
29th Jul 2026238 PMAQI
29th Jul 2026239 PMAQI
29th Jul 20262110 PMAQI
29th Jul 20262111 PMAQI
30th Jul 20262112 AMAQI
30th Jul 2026341 AMAQI
30th Jul 2026212 AMAQI
30th Jul 2026213 AMAQI
30th Jul 2026464 AMAQI
21°C20/22°C
30th Jul 2026365 AMAQI
30th Jul 2026286 AMAQI
30th Jul 2026217 AMAQI
30th Jul 2026228 AMAQI
30th Jul 2026349 AMAQI
30th Jul 20262810 AMAQI
30th Jul 20262111 AMAQI
30th Jul 20262112 PMAQI
30th Jul 2026301 PMAQI
30th Jul 2026302 PMAQI
30th Jul 2026333 PMAQI
30th Jul 2026254 PMAQI
30th Jul 2026255 PMAQI
30th Jul 2026256 PMAQI
30th Jul 2026297 PMAQI
30th Jul 2026298 PMAQI
30th Jul 2026299 PMAQI
30th Jul 20262710 PMAQI
30th Jul 20262911 PMAQI
31st Jul 20262912 AMAQI
31st Jul 2026271 AMAQI
31st Jul 2026252 AMAQI
31st Jul 2026253 AMAQI
31st Jul 2026254 AMAQI
23°C18/29°C
31st Jul 2026255 AMAQI
31st Jul 2026256 AMAQI
31st Jul 2026257 AMAQI
31st Jul 2026368 AMAQI
31st Jul 2026409 AMAQI
31st Jul 20262910 AMAQI
31st Jul 20263011 AMAQI
31st Jul 20262512 PMAQI
31st Jul 2026231 PMAQI
31st Jul 2026252 PMAQI
31st Jul 2026363 PMAQI
31st Jul 2026384 PMAQI
31st Jul 2026365 PMAQI
31st Jul 2026256 PMAQI
31st Jul 2026257 PMAQI
31st Jul 2026258 PMAQI
31st Jul 2026219 PMAQI
31st Jul 20262110 PMAQI
31st Jul 20263211 PMAQI
1st Aug 20262312 AMAQI
1st Aug 2026211 AMAQI
1st Aug 2026212 AMAQI
1st Aug 2026363 AMAQI
1st Aug 2026214 AMAQI
23°C15/31°C
1st Aug 2026215 AMAQI
1st Aug 2026216 AMAQI
1st Aug 2026217 AMAQI
1st Aug 2026218 AMAQI
1st Aug 2026219 AMAQI
1st Aug 20262210 AMAQI
1st Aug 20262111 AMAQI
1st Aug 20262112 PMAQI
1st Aug 2026221 PMAQI
1st Aug 2026212 PMAQI
1st Aug 2026253 PMAQI
1st Aug 2026234 PMAQI
1st Aug 2026235 PMAQI
1st Aug 2026236 PMAQI
1st Aug 2026237 PMAQI
1st Aug 2026238 PMAQI
1st Aug 2026259 PMAQI
1st Aug 20262510 PMAQI
1st Aug 20262211 PMAQI
2nd Aug 20262312 AMAQI
2nd Aug 2026251 AMAQI
2nd Aug 2026252 AMAQI
2nd Aug 2026253 AMAQI
2nd Aug 2026274 AMAQI
23°C18/30°C
2nd Aug 2026255 AMAQI
2nd Aug 2026296 AMAQI
2nd Aug 2026277 AMAQI
2nd Aug 2026348 AMAQI
2nd Aug 2026279 AMAQI
2nd Aug 20262910 AMAQI
2nd Aug 20262511 AMAQI
2nd Aug 20262512 PMAQI
2nd Aug 2026251 PMAQI
2nd Aug 2026252 PMAQI
2nd Aug 2026253 PMAQI
2nd Aug 2026254 PMAQI
2nd Aug 2026235 PMAQI
2nd Aug 2026216 PMAQI
2nd Aug 2026217 PMAQI
2nd Aug 2026218 PMAQI
2nd Aug 2026449 PMAQI
2nd Aug 20263210 PMAQI
2nd Aug 20262311 PMAQI
3rd Aug 20262112 AMAQI
3rd Aug 2026211 AMAQI
3rd Aug 2026212 AMAQI
3rd Aug 2026213 AMAQI
3rd Aug 2026234 AMAQI
22°C20/24°C
3rd Aug 2026235 AMAQI
3rd Aug 2026226 AMAQI
3rd Aug 2026267 AMAQI
3rd Aug 2026248 AMAQI
3rd Aug 2026229 AMAQI
3rd Aug 20262210 AMAQI
3rd Aug 20262411 AMAQI
3rd Aug 20264612 PMAQI
3rd Aug 2026501 PMAQI
3rd Aug 2026242 PMAQI
3rd Aug 2026213 PMAQI
3rd Aug 2026184 PMAQI
3rd Aug 2026165 PMAQI
3rd Aug 2026206 PMAQI
3rd Aug 2026217 PMAQI
3rd Aug 2026228 PMAQI
3rd Aug 2026209 PMAQI
3rd Aug 20262010 PMAQI
3rd Aug 20265111 PMAQI
4th Aug 20264912 AMAQI
4th Aug 2026421 AMAQI
4th Aug 2026482 AMAQI
4th Aug 2026443 AMAQI
4th Aug 2026384 AMAQI
20°C18/26°C
4th Aug 2026625 AMAQI
4th Aug 2026606 AMAQI
4th Aug 2026627 AMAQI
4th Aug 2026428 AMAQI
4th Aug 2026259 AMAQI
4th Aug 20262910 AMAQI
4th Aug 20263311 AMAQI
4th Aug 20263312 PMAQI
4th Aug 2026271 PMAQI
4th Aug 2026232 PMAQI
4th Aug 2026243 PMAQI
4th Aug 2026244 PMAQI
4th Aug 2026295 PMAQI
4th Aug 2026276 PMAQI
4th Aug 2026217 PMAQI
4th Aug 2026298 PMAQI
4th Aug 2026309 PMAQI
4th Aug 20262410 PMAQI
4th Aug 20263811 PMAQI
5th Aug 20262912 AMAQI
5th Aug 2026301 AMAQI
5th Aug 2026292 AMAQI
5th Aug 2026253 AMAQI
5th Aug 2026334 AMAQI
21°C14/30°C
5th Aug 2026255 AMAQI
5th Aug 2026256 AMAQI
5th Aug 2026337 AMAQI
5th Aug 2026228 AMAQI
5th Aug 2026259 AMAQI
5th Aug 20262210 AMAQI
5th Aug 20262611 AMAQI
5th Aug 20262512 PMAQI
5th Aug 2026341 PMAQI
5th Aug 2026302 PMAQI
5th Aug 2026253 PMAQI
5th Aug 2026254 PMAQI
5th Aug 2026265 PMAQI
5th Aug 2026266 PMAQI
5th Aug 2026297 PMAQI
5th Aug 2026308 PMAQI
5th Aug 2026469 PMAQI
5th Aug 20264210 PMAQI
5th Aug 20264611 PMAQI
6th Aug 20262912 AMAQI
6th Aug 2026291 AMAQI
6th Aug 2026212 AMAQI
6th Aug 2026263 AMAQI
6th Aug 2026364 AMAQI
23°C15/31°C
6th Aug 2026235 AMAQI
6th Aug 2026326 AMAQI
6th Aug 2026407 AMAQI
6th Aug 2026408 AMAQI
6th Aug 2026219 AMAQI
6th Aug 20263410 AMAQI
6th Aug 20262211 AMAQI
6th Aug 20262212 PMAQI
6th Aug 2026211 PMAQI
6th Aug 2026362 PMAQI
6th Aug 2026213 PMAQI
6th Aug 2026304 PMAQI
6th Aug 2026225 PMAQI
6th Aug 2026226 PMAQI
6th Aug 2026257 PMAQI
6th Aug 2026408 PMAQI
6th Aug 2026349 PMAQI
6th Aug 20265610 PMAQI
6th Aug 20264211 PMAQI
7th Aug 20263712 AMAQI
7th Aug 2026251 AMAQI
7th Aug 2026252 AMAQI
7th Aug 2026253 AMAQI
7th Aug 2026284 AMAQI
24°C18/32°C
7th Aug 2026255 AMAQI
7th Aug 2026266 AMAQI
7th Aug 2026257 AMAQI
7th Aug 2026268 AMAQI
7th Aug 2026269 AMAQI
7th Aug 20262610 AMAQI
7th Aug 20262511 AMAQI
7th Aug 20262512 PMAQI
7th Aug 2026271 PMAQI
7th Aug 2026402 PMAQI
7th Aug 2026383 PMAQI
7th Aug 2026404 PMAQI
7th Aug 2026385 PMAQI
7th Aug 2026386 PMAQI
7th Aug 2026297 PMAQI
7th Aug 2026298 PMAQI
7th Aug 2026299 PMAQI
7th Aug 20262710 PMAQI
7th Aug 20263111 PMAQI
8th Aug 20262912 AMAQI
8th Aug 2026311 AMAQI
8th Aug 2026312 AMAQI
8th Aug 2026363 AMAQI
8th Aug 2026384 AMAQI
25°C21/31°C
8th Aug 2026385 AMAQI
8th Aug 2026386 AMAQI
8th Aug 2026387 AMAQI
8th Aug 2026388 AMAQI
8th Aug 2026409 AMAQI
8th Aug 20264210 AMAQI
8th Aug 20264011 AMAQI
8th Aug 20264012 PMAQI
8th Aug 2026401 PMAQI
8th Aug 2026362 PMAQI
8th Aug 2026293 PMAQI
8th Aug 2026314 PMAQI
8th Aug 2026275 PMAQI
8th Aug 2026256 PMAQI
8th Aug 2026257 PMAQI
8th Aug 2026238 PMAQI
8th Aug 2026249 PMAQI
8th Aug 20262210 PMAQI
8th Aug 20262111 PMAQI
9th Aug 20262312 AMAQI
9th Aug 2026211 AMAQI
9th Aug 2026232 AMAQI
9th Aug 2026223 AMAQI
9th Aug 2026214 AMAQI
23°C20/29°C
9th Aug 2026225 AMAQI
9th Aug 2026216 AMAQI
9th Aug 2026237 AMAQI
9th Aug 2026248 AMAQI
9th Aug 2026249 AMAQI
9th Aug 20262510 AMAQI
9th Aug 20262411 AMAQI
9th Aug 20262412 PMAQI
9th Aug 2026281 PMAQI
9th Aug 2026242 PMAQI
9th Aug 2026233 PMAQI
9th Aug 2026214 PMAQI
9th Aug 2026215 PMAQI
9th Aug 2026216 PMAQI
9th Aug 2026217 PMAQI
9th Aug 2026238 PMAQI
9th Aug 2026389 PMAQI
9th Aug 20263810 PMAQI
9th Aug 20262511 PMAQI
10th Aug 20262512 AMAQI
10th Aug 2026361 AMAQI
10th Aug 2026502 AMAQI
10th Aug 2026523 AMAQI
10th Aug 2026254 AMAQI
23°C19/27°C
10th Aug 2026235 AMAQI
10th Aug 2026256 AMAQI
10th Aug 2026257 AMAQI
10th Aug 2026308 AMAQI
10th Aug 2026249 AMAQI
10th Aug 20262510 AMAQI
10th Aug 20262511 AMAQI
10th Aug 20262712 PMAQI
10th Aug 2026251 PMAQI
10th Aug 2026212 PMAQI
10th Aug 2026253 PMAQI
10th Aug 2026254 PMAQI
10th Aug 2026335 PMAQI
10th Aug 2026226 PMAQI
10th Aug 2026427 PMAQI
10th Aug 2026268 PMAQI
10th Aug 2026409 PMAQI
10th Aug 20263810 PMAQI
10th Aug 20264411 PMAQI
11th Aug 20264412 AMAQI
11th Aug 2026421 AMAQI
11th Aug 2026402 AMAQI
11th Aug 2026253 AMAQI
11th Aug 2026254 AMAQI
22°C18/28°C
11th Aug 2026235 AMAQI
5 AM11th Aug 2026256 AMAQI
11th Aug 2026287 AMAQI
11th Aug 2026288 AMAQI
11th Aug 2026299 AMAQI
11th Aug 20262810 AMAQI
11th Aug 20262511 AMAQI
11th Aug 20262912 PMAQI
12 PM11th Aug 2026251 PMAQI
11th Aug 2026252 PMAQI
11th Aug 2026253 PMAQI
11th Aug 2026234 PMAQI
11th Aug 2026245 PMAQI
11th Aug 2026216 PMAQI
11th Aug 2026217 PMAQI
11th Aug 2026218 PMAQI
8 PM11th Aug 2026219 PMAQI
12 AM
4 AM
21°C16/27°C
Day time
Avg. Highest Time
1 PM
36AQI
1 hours / Day
30 hours / Month
Avg. Lowest Time
8 PM
29AQI
1 hours / Day
30 hours / Month
In the last 30 days, during the daytime, the highest AQI was between 1 PM to 1 PM (Avg. 36), while the lowest AQI was between 8 PM to 8 PM (Avg. 29).
Night time
Avg. Highest Time
2 AM
35AQI
1 hours / Day
30 hours / Month
Avg. Lowest Time
12 AM - 1 AM
32AQI
2 hours / Day
60 hours / Month
In the last 30 days, during the daytime, the highest AQI was between 2 AM to 2 AM (Avg. 35), while the lowest AQI was between 12 AM to 1 AM (Avg. 32).
2026 Days Vs Air Quality
Ottawa Downtown, Ottawa, Ontario, Canada
2026
94%
205
6%
14
Total number of days with different AQI categories in last 223 days in 2026 (142 days remaining)
Good
205 DaysModerate
14 DaysPoor
0 DaysUnhealthy
0 DaysSevere
0 DaysHazardous
0 DaysUnder WHO’s Safe Air Quality Limits: 94%
Health Risk Level:
Very Low
In 2026, 94% of 223 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
Ottawa Downtown, Ottawa, 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
16AQI (US)
16AQI (US)
2nd January 2026
42AQI (US)
42AQI (US)
3rd January 2026
14AQI (US)
14AQI (US)
4th January 2026
21AQI (US)
21AQI (US)
5th January 2026
36AQI (US)
36AQI (US)
6th January 2026
53AQI (US)
53AQI (US)
7th January 2026
52AQI (US)
52AQI (US)
8th January 2026
41AQI (US)
41AQI (US)
9th January 2026
44AQI (US)
44AQI (US)
10th January 2026
13AQI (US)
13AQI (US)
11th January 2026
15AQI (US)
15AQI (US)
12th January 2026
19AQI (US)
19AQI (US)
13th January 2026
48AQI (US)
48AQI (US)
14th January 2026
41AQI (US)
41AQI (US)
15th January 2026
12AQI (US)
12AQI (US)
16th January 2026
12AQI (US)
12AQI (US)
17th January 2026
30AQI (US)
30AQI (US)
18th January 2026
30AQI (US)
30AQI (US)
19th January 2026
39AQI (US)
39AQI (US)
20th January 2026
17AQI (US)
17AQI (US)
21st January 2026
22AQI (US)
22AQI (US)
22nd January 2026
49AQI (US)
49AQI (US)
23rd January 2026
53AQI (US)
53AQI (US)
24th January 2026
48AQI (US)
48AQI (US)
25th January 2026
47AQI (US)
47AQI (US)
26th January 2026
47AQI (US)
47AQI (US)
27th January 2026
44AQI (US)
44AQI (US)
28th January 2026
48AQI (US)
48AQI (US)
29th January 2026
52AQI (US)
52AQI (US)
30th January 2026
52AQI (US)
52AQI (US)
31st January 2026
45AQI (US)
45AQI (US)
1st February 2026
47AQI (US)
47AQI (US)
2nd February 2026
50AQI (US)
50AQI (US)
3rd February 2026
48AQI (US)
48AQI (US)
4th February 2026
49AQI (US)
49AQI (US)
5th February 2026
48AQI (US)
48AQI (US)
6th February 2026
40AQI (US)
40AQI (US)
7th February 2026
37AQI (US)
37AQI (US)
8th February 2026
46AQI (US)
46AQI (US)
9th February 2026
47AQI (US)
47AQI (US)
10th February 2026
44AQI (US)
44AQI (US)
11th February 2026
40AQI (US)
40AQI (US)
12th February 2026
38AQI (US)
38AQI (US)
13th February 2026
47AQI (US)
47AQI (US)
14th February 2026
48AQI (US)
48AQI (US)
15th February 2026
38AQI (US)
38AQI (US)
16th February 2026
43AQI (US)
43AQI (US)
17th February 2026
45AQI (US)
45AQI (US)
18th February 2026
42AQI (US)
42AQI (US)
19th February 2026
40AQI (US)
40AQI (US)
20th February 2026
38AQI (US)
38AQI (US)
21st February 2026
35AQI (US)
35AQI (US)
22nd February 2026
36AQI (US)
36AQI (US)
23rd February 2026
40AQI (US)
40AQI (US)
24th February 2026
46AQI (US)
46AQI (US)
25th February 2026
43AQI (US)
43AQI (US)
26th February 2026
35AQI (US)
35AQI (US)
27th February 2026
36AQI (US)
36AQI (US)
28th February 2026
39AQI (US)
39AQI (US)
1st March 2026
39AQI (US)
39AQI (US)
2nd March 2026
55AQI (US)
55AQI (US)
3rd March 2026
47AQI (US)
47AQI (US)
4th March 2026
45AQI (US)
45AQI (US)
5th March 2026
41AQI (US)
41AQI (US)
6th March 2026
39AQI (US)
39AQI (US)
7th March 2026
40AQI (US)
40AQI (US)
8th March 2026
40AQI (US)
40AQI (US)
9th March 2026
41AQI (US)
41AQI (US)
10th March 2026
33AQI (US)
33AQI (US)
11th March 2026
44AQI (US)
44AQI (US)
12th March 2026
41AQI (US)
41AQI (US)
13th March 2026
40AQI (US)
40AQI (US)
14th March 2026
37AQI (US)
37AQI (US)
15th March 2026
35AQI (US)
35AQI (US)
16th March 2026
36AQI (US)
36AQI (US)
17th March 2026
33AQI (US)
33AQI (US)
18th March 2026
31AQI (US)
31AQI (US)
19th March 2026
31AQI (US)
31AQI (US)
20th March 2026
36AQI (US)
36AQI (US)
21st March 2026
37AQI (US)
37AQI (US)
22nd March 2026
36AQI (US)
36AQI (US)
23rd March 2026
41AQI (US)
41AQI (US)
24th March 2026
36AQI (US)
36AQI (US)
25th March 2026
32AQI (US)
32AQI (US)
26th March 2026
27AQI (US)
27AQI (US)
27th March 2026
28AQI (US)
28AQI (US)
28th March 2026
32AQI (US)
32AQI (US)
29th March 2026
30AQI (US)
30AQI (US)
30th March 2026
26AQI (US)
26AQI (US)
31st March 2026
25AQI (US)
25AQI (US)
1st April 2026
30AQI (US)
30AQI (US)
2nd April 2026
31AQI (US)
31AQI (US)
3rd April 2026
27AQI (US)
27AQI (US)
4th April 2026
32AQI (US)
32AQI (US)
5th April 2026
29AQI (US)
29AQI (US)
6th April 2026
28AQI (US)
28AQI (US)
7th April 2026
26AQI (US)
26AQI (US)
8th April 2026
31AQI (US)
31AQI (US)
9th April 2026
28AQI (US)
28AQI (US)
10th April 2026
30AQI (US)
30AQI (US)
11th April 2026
31AQI (US)
31AQI (US)
12th April 2026
26AQI (US)
26AQI (US)
13th April 2026
33AQI (US)
33AQI (US)
14th April 2026
32AQI (US)
32AQI (US)
15th April 2026
32AQI (US)
32AQI (US)
16th April 2026
30AQI (US)
30AQI (US)
17th April 2026
18th April 2026
28AQI (US)
28AQI (US)
19th April 2026
33AQI (US)
33AQI (US)
20th April 2026
29AQI (US)
29AQI (US)
21st April 2026
27AQI (US)
27AQI (US)
22nd April 2026
23rd April 2026
23AQI (US)
23AQI (US)
24th April 2026
25AQI (US)
25AQI (US)
25th April 2026
28AQI (US)
28AQI (US)
26th April 2026
32AQI (US)
32AQI (US)
27th April 2026
27AQI (US)
27AQI (US)
28th April 2026
24AQI (US)
24AQI (US)
29th April 2026
23AQI (US)
23AQI (US)
30th April 2026
25AQI (US)
25AQI (US)
1st May 2026
26AQI (US)
26AQI (US)
2nd May 2026
24AQI (US)
24AQI (US)
3rd May 2026
20AQI (US)
20AQI (US)
4th May 2026
31AQI (US)
31AQI (US)
5th May 2026
33AQI (US)
33AQI (US)
6th May 2026
30AQI (US)
30AQI (US)
7th May 2026
28AQI (US)
28AQI (US)
8th May 2026
28AQI (US)
28AQI (US)
9th May 2026
10th May 2026
32AQI (US)
32AQI (US)
11th May 2026
28AQI (US)
28AQI (US)
12th May 2026
24AQI (US)
24AQI (US)
13th May 2026
28AQI (US)
28AQI (US)
14th May 2026
23AQI (US)
23AQI (US)
15th May 2026
46AQI (US)
46AQI (US)
16th May 2026
53AQI (US)
53AQI (US)
17th May 2026
56AQI (US)
56AQI (US)
18th May 2026
58AQI (US)
58AQI (US)
19th May 2026
55AQI (US)
55AQI (US)
20th May 2026
51AQI (US)
51AQI (US)
21st May 2026
44AQI (US)
44AQI (US)
22nd May 2026
43AQI (US)
43AQI (US)
23rd May 2026
50AQI (US)
50AQI (US)
24th May 2026
48AQI (US)
48AQI (US)
25th May 2026
45AQI (US)
45AQI (US)
26th May 2026
29AQI (US)
29AQI (US)
27th May 2026
25AQI (US)
25AQI (US)
28th May 2026
19AQI (US)
19AQI (US)
29th May 2026
19AQI (US)
19AQI (US)
30th May 2026
20AQI (US)
20AQI (US)
31st May 2026
27AQI (US)
27AQI (US)
1st June 2026
28AQI (US)
28AQI (US)
2nd June 2026
25AQI (US)
25AQI (US)
3rd June 2026
23AQI (US)
23AQI (US)
4th June 2026
25AQI (US)
25AQI (US)
5th June 2026
28AQI (US)
28AQI (US)
6th June 2026
25AQI (US)
25AQI (US)
7th June 2026
21AQI (US)
21AQI (US)
8th June 2026
26AQI (US)
26AQI (US)
9th June 2026
25AQI (US)
25AQI (US)
10th June 2026
27AQI (US)
27AQI (US)
11th June 2026
26AQI (US)
26AQI (US)
12th June 2026
27AQI (US)
27AQI (US)
13th June 2026
23AQI (US)
23AQI (US)
14th June 2026
23AQI (US)
23AQI (US)
15th June 2026
25AQI (US)
25AQI (US)
16th June 2026
26AQI (US)
26AQI (US)
17th June 2026
27AQI (US)
27AQI (US)
18th June 2026
26AQI (US)
26AQI (US)
19th June 2026
24AQI (US)
24AQI (US)
20th June 2026
24AQI (US)
24AQI (US)
21st June 2026
21AQI (US)
21AQI (US)
22nd June 2026
24AQI (US)
24AQI (US)
23rd June 2026
25AQI (US)
25AQI (US)
24th June 2026
24AQI (US)
24AQI (US)
25th June 2026
26AQI (US)
26AQI (US)
26th June 2026
27AQI (US)
27AQI (US)
27th June 2026
29AQI (US)
29AQI (US)
28th June 2026
27AQI (US)
27AQI (US)
29th June 2026
25AQI (US)
25AQI (US)
30th June 2026
26AQI (US)
26AQI (US)
1st July 2026
27AQI (US)
27AQI (US)
2nd July 2026
27AQI (US)
27AQI (US)
3rd July 2026
28AQI (US)
28AQI (US)
4th July 2026
25AQI (US)
25AQI (US)
5th July 2026
26AQI (US)
26AQI (US)
6th July 2026
28AQI (US)
28AQI (US)
7th July 2026
30AQI (US)
30AQI (US)
8th July 2026
27AQI (US)
27AQI (US)
9th July 2026
29AQI (US)
29AQI (US)
10th July 2026
39AQI (US)
39AQI (US)
11th July 2026
52AQI (US)
52AQI (US)
12th July 2026
69AQI (US)
69AQI (US)
13th July 2026
52AQI (US)
52AQI (US)
14th July 2026
44AQI (US)
44AQI (US)
15th July 2026
49AQI (US)
49AQI (US)
16th July 2026
50AQI (US)
50AQI (US)
17th July 2026
23AQI (US)
23AQI (US)
18th July 2026
43AQI (US)
43AQI (US)
19th July 2026
33AQI (US)
33AQI (US)
20th July 2026
27AQI (US)
27AQI (US)
21st July 2026
44AQI (US)
44AQI (US)
22nd July 2026
25AQI (US)
25AQI (US)
23rd July 2026
28AQI (US)
28AQI (US)
24th July 2026
26AQI (US)
26AQI (US)
25th July 2026
23AQI (US)
23AQI (US)
26th July 2026
33AQI (US)
33AQI (US)
27th July 2026
45AQI (US)
45AQI (US)
28th July 2026
38AQI (US)
38AQI (US)
29th July 2026
33AQI (US)
33AQI (US)
30th July 2026
28AQI (US)
28AQI (US)
31st July 2026
28AQI (US)
28AQI (US)
1st August 2026
23AQI (US)
23AQI (US)
2nd August 2026
26AQI (US)
26AQI (US)
3rd August 2026
25AQI (US)
25AQI (US)
4th August 2026
36AQI (US)
36AQI (US)
5th August 2026
30AQI (US)
30AQI (US)
6th August 2026
30AQI (US)
30AQI (US)
7th August 2026
30AQI (US)
30AQI (US)
8th August 2026
33AQI (US)
33AQI (US)
9th August 2026
24AQI (US)
24AQI (US)
10th August 2026
31AQI (US)
31AQI (US)
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
36AQI (US)
42AQI (US)
37AQI (US)
29AQI (US)
35AQI (US)
25AQI (US)
35AQI (US)
29AQI (US)
No. of days
Jan.Feb.Mar.Apr.MayJun.Jul.Aug.Sep.Oct.Nov.Dec.Total Days
202634AQI (US)
26
5
28
30
1
28
25
5
30
28
3
10
205
14
Highest AQI (US) recorded in
February42AQI (US)
Lowest AQI (US) recorded in
June25AQI (US)
202529AQI (US)
29
2
26
2
29
2
30
31
23
7
25
6
24
7
30
29
2
29
1
25
6
330
35
Highest AQI (US) recorded in
July39AQI (US)
Lowest AQI (US) recorded in
May19AQI (US)
202430AQI (US)
29
1
22
7
30
1
30
31
27
2
28
3
21
10
28
2
31
30
29
2
336
28
Highest AQI (US) recorded in
February37AQI (US)
Lowest AQI (US) recorded in
November23AQI (US)
202338AQI (US)
30
1
22
6
30
1
30
30
1
14
9
2
3
2
19
11
1
25
6
23
7
29
2
27
2
25
6
304
52
3
3
2
Highest AQI (US) recorded in
June78AQI (US)
Lowest AQI (US) recorded in
January27AQI (US)
202230AQI (US)
23
7
20
2
31
17
31
30
22
1
29
30
1
29
1
30
1
293
12
Highest AQI (US) recorded in
January38AQI (US)
Lowest AQI (US) recorded in
August16AQI (US)
202130AQI (US)
23
6
25
3
27
4
30
27
30
26
5
26
5
30
31
29
1
28
3
332
27
Highest AQI (US) recorded in
February35AQI (US)
Lowest AQI (US) recorded in
September20AQI (US)
202028AQI (US)
13
21
18
30
31
31
30
31
24
6
28
3
257
9
Highest AQI (US) recorded in
November36AQI (US)
Lowest AQI (US) recorded in
August21AQI (US)
Most & Least Polluted Years Over the Last 7 Years
Most Polluted Year Recorded
2023(Avg.)
38AQI (US)Least Polluted Year Recorded
2020(Avg.)
28AQI (US)Ottawa Downtown's annual 2026 AQI (US) (34) shows an average percentage change of 11.3% (worsened AQI (US)) compared to previous years: 2020 (28), 2021 (30), 2022 (30), 2023 (38), 2024 (30), 2025 (29).
