Lower Town, 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
Lower Town, Ottawa, Ontario, Canada
2025
AQI
.
Days
AQI Trends: Highest and Lowest
Highest AQI recorded on
1st Aug 2025
22AQILowest AQI recorded on
1st Aug 2025
22AQISame Day Analysis (1st August ):
On this day, AQI across the 1 years varied significantly: 2025 ranks 1st highest AQI at 22 of Good air quality on the same day.
Download 2024 Annual Data
World Air Quality Report
Day & Night AQI Trend: 1st Aug - 2nd Aug 2025
Lower Town, Ottawa, Ontario, Canada
AQI
Day
Night
.
5 AM1st Aug 2025
8 PM
4 AM2nd Aug 2025
Day time
Avg. Highest Time
5AM1st Aug
23AQI
Avg. Lowest Time
8PM1st Aug
16AQI
Night time
Avg. Highest Time
3AM2nd Aug
26AQI
Avg. Lowest Time
9PM1st Aug
18AQI
In the last 24 hours,
Lower Town's AQI reached its highest point of 26 at 3 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
Lower Town, Ottawa, Ontario, 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 2025455 AMAQI
3rd Jul 2025536 AMAQI
3rd Jul 2025537 AMAQI
3rd Jul 2025508 AMAQI
3rd Jul 2025469 AMAQI
3rd Jul 20254710 AMAQI
3rd Jul 20254811 AMAQI
3rd Jul 20254812 PMAQI
3rd Jul 2025461 PMAQI
3rd Jul 2025482 PMAQI
3rd Jul 2025463 PMAQI
3rd Jul 2025454 PMAQI
3rd Jul 2025455 PMAQI
3rd Jul 2025506 PMAQI
3rd Jul 2025447 PMAQI
3rd Jul 2025418 PMAQI
3rd Jul 2025389 PMAQI
3rd Jul 20253810 PMAQI
3rd Jul 20253711 PMAQI
4th Jul 20253712 AMAQI
4th Jul 2025361 AMAQI
4th Jul 2025302 AMAQI
4th Jul 2025243 AMAQI
4th Jul 2025244 AMAQI
23°C18/27°C
4th Jul 2025235 AMAQI
4th Jul 2025226 AMAQI
4th Jul 2025227 AMAQI
4th Jul 2025228 AMAQI
4th Jul 2025249 AMAQI
4th Jul 20252210 AMAQI
4th Jul 20252211 AMAQI
4th Jul 20252012 PMAQI
4th Jul 2025201 PMAQI
4th Jul 2025202 PMAQI
4th Jul 2025213 PMAQI
4th Jul 2025204 PMAQI
4th Jul 2025225 PMAQI
4th Jul 2025216 PMAQI
4th Jul 2025217 PMAQI
4th Jul 2025218 PMAQI
4th Jul 2025229 PMAQI
4th Jul 20252210 PMAQI
4th Jul 20252211 PMAQI
5th Jul 20252512 AMAQI
5th Jul 2025301 AMAQI
5th Jul 2025262 AMAQI
5th Jul 2025263 AMAQI
5th Jul 2025304 AMAQI
21°C13/28°C
5th Jul 2025305 AMAQI
5th Jul 2025296 AMAQI
5th Jul 2025287 AMAQI
5th Jul 2025308 AMAQI
5th Jul 2025339 AMAQI
5th Jul 20252410 AMAQI
5th Jul 20252811 AMAQI
5th Jul 20252712 PMAQI
5th Jul 2025281 PMAQI
5th Jul 2025282 PMAQI
5th Jul 2025293 PMAQI
5th Jul 2025294 PMAQI
5th Jul 2025265 PMAQI
5th Jul 2025286 PMAQI
5th Jul 2025307 PMAQI
5th Jul 2025308 PMAQI
5th Jul 2025319 PMAQI
5th Jul 20253110 PMAQI
5th Jul 20253811 PMAQI
6th Jul 20254012 AMAQI
6th Jul 2025441 AMAQI
6th Jul 2025482 AMAQI
6th Jul 2025493 AMAQI
6th Jul 2025514 AMAQI
23°C14/32°C
6th Jul 2025525 AMAQI
6th Jul 2025526 AMAQI
6th Jul 2025507 AMAQI
6th Jul 2025428 AMAQI
6th Jul 2025419 AMAQI
6th Jul 20254010 AMAQI
6th Jul 20254311 AMAQI
6th Jul 20254212 PMAQI
6th Jul 2025421 PMAQI
6th Jul 2025422 PMAQI
6th Jul 2025433 PMAQI
6th Jul 2025424 PMAQI
6th Jul 2025475 PMAQI
6th Jul 2025486 PMAQI
6th Jul 2025487 PMAQI
6th Jul 2025498 PMAQI
6th Jul 2025519 PMAQI
6th Jul 20255210 PMAQI
6th Jul 20255211 PMAQI
7th Jul 20255012 AMAQI
7th Jul 2025501 AMAQI
7th Jul 2025502 AMAQI
7th Jul 2025473 AMAQI
7th Jul 2025474 AMAQI
27°C21/37°C
7th Jul 2025465 AMAQI
7th Jul 2025476 AMAQI
7th Jul 2025507 AMAQI
7th Jul 2025538 AMAQI
7th Jul 2025539 AMAQI
7th Jul 20255410 AMAQI
7th Jul 20254611 AMAQI
7th Jul 20255312 PMAQI
7th Jul 2025511 PMAQI
7th Jul 2025482 PMAQI
7th Jul 2025423 PMAQI
7th Jul 2025444 PMAQI
7th Jul 2025425 PMAQI
7th Jul 2025386 PMAQI
7th Jul 2025377 PMAQI
7th Jul 2025348 PMAQI
7th Jul 2025469 PMAQI
7th Jul 20254110 PMAQI
7th Jul 20252511 PMAQI
8th Jul 20252712 AMAQI
8th Jul 2025291 AMAQI
8th Jul 2025242 AMAQI
8th Jul 2025233 AMAQI
8th Jul 2025214 AMAQI
20°C18/22°C
8th Jul 2025215 AMAQI
8th Jul 2025216 AMAQI
8th Jul 2025227 AMAQI
8th Jul 2025218 AMAQI
8th Jul 2025229 AMAQI
8th Jul 20252310 AMAQI
8th Jul 20252411 AMAQI
8th Jul 20252412 PMAQI
8th Jul 2025281 PMAQI
8th Jul 2025292 PMAQI
8th Jul 2025303 PMAQI
8th Jul 2025294 PMAQI
8th Jul 2025305 PMAQI
8th Jul 2025336 PMAQI
8th Jul 2025347 PMAQI
8th Jul 2025328 PMAQI
8th Jul 2025259 PMAQI
8th Jul 20252510 PMAQI
8th Jul 20252811 PMAQI
9th Jul 20252612 AMAQI
9th Jul 2025261 AMAQI
9th Jul 2025262 AMAQI
9th Jul 2025263 AMAQI
9th Jul 2025264 AMAQI
22°C16/28°C
9th Jul 2025265 AMAQI
9th Jul 2025286 AMAQI
9th Jul 2025267 AMAQI
9th Jul 2025248 AMAQI
9th Jul 2025259 AMAQI
9th Jul 20252810 AMAQI
9th Jul 20252911 AMAQI
9th Jul 20252912 PMAQI
9th Jul 2025291 PMAQI
9th Jul 2025292 PMAQI
9th Jul 2025263 PMAQI
9th Jul 2025274 PMAQI
9th Jul 2025295 PMAQI
9th Jul 2025296 PMAQI
9th Jul 2025307 PMAQI
9th Jul 2025308 PMAQI
9th Jul 2025289 PMAQI
9th Jul 20252810 PMAQI
9th Jul 20253011 PMAQI
10th Jul 20253012 AMAQI
10th Jul 2025301 AMAQI
10th Jul 2025302 AMAQI
10th Jul 2025343 AMAQI
10th Jul 2025314 AMAQI
23°C17/30°C
10th Jul 2025305 AMAQI
10th Jul 2025316 AMAQI
10th Jul 2025327 AMAQI
10th Jul 2025338 AMAQI
10th Jul 2025339 AMAQI
10th Jul 20253410 AMAQI
10th Jul 20253411 AMAQI
10th Jul 20253412 PMAQI
10th Jul 2025371 PMAQI
10th Jul 2025372 PMAQI
10th Jul 2025403 PMAQI
10th Jul 2025394 PMAQI
10th Jul 2025415 PMAQI
10th Jul 2025416 PMAQI
10th Jul 2025407 PMAQI
10th Jul 2025418 PMAQI
10th Jul 2025369 PMAQI
10th Jul 20253510 PMAQI
10th Jul 20253711 PMAQI
11th Jul 20253712 AMAQI
11th Jul 2025361 AMAQI
11th Jul 2025362 AMAQI
11th Jul 2025383 AMAQI
11th Jul 2025384 AMAQI
25°C19/32°C
11th Jul 2025375 AMAQI
11th Jul 2025356 AMAQI
11th Jul 2025347 AMAQI
11th Jul 2025348 AMAQI
11th Jul 2025389 AMAQI
11th Jul 20254010 AMAQI
11th Jul 20254411 AMAQI
11th Jul 20254412 PMAQI
11th Jul 2025461 PMAQI
11th Jul 2025492 PMAQI
11th Jul 2025443 PMAQI
11th Jul 2025444 PMAQI
11th Jul 2025435 PMAQI
11th Jul 2025436 PMAQI
11th Jul 2025427 PMAQI
11th Jul 2025448 PMAQI
11th Jul 2025409 PMAQI
11th Jul 20254010 PMAQI
11th Jul 20254311 PMAQI
12th Jul 20254212 AMAQI
12th Jul 2025451 AMAQI
12th Jul 2025502 AMAQI
12th Jul 2025513 AMAQI
12th Jul 2025524 AMAQI
24°C19/32°C
12th Jul 2025525 AMAQI
12th Jul 2025496 AMAQI
12th Jul 2025497 AMAQI
12th Jul 2025508 AMAQI
12th Jul 2025529 AMAQI
12th Jul 20255210 AMAQI
12th Jul 20255211 AMAQI
12th Jul 20254912 PMAQI
12th Jul 2025501 PMAQI
12th Jul 2025482 PMAQI
12th Jul 2025533 PMAQI
12th Jul 2025504 PMAQI
12th Jul 2025485 PMAQI
12th Jul 2025486 PMAQI
12th Jul 2025487 PMAQI
12th Jul 2025488 PMAQI
12th Jul 2025489 PMAQI
12th Jul 20255010 PMAQI
12th Jul 20254811 PMAQI
13th Jul 20254712 AMAQI
13th Jul 2025501 AMAQI
13th Jul 2025472 AMAQI
13th Jul 2025453 AMAQI
13th Jul 2025464 AMAQI
27°C19/36°C
13th Jul 2025465 AMAQI
13th Jul 2025496 AMAQI
13th Jul 2025447 AMAQI
13th Jul 2025458 AMAQI
13th Jul 2025449 AMAQI
13th Jul 20254610 AMAQI
13th Jul 20254511 AMAQI
13th Jul 20254512 PMAQI
13th Jul 2025461 PMAQI
13th Jul 2025442 PMAQI
13th Jul 2025463 PMAQI
13th Jul 2025484 PMAQI
13th Jul 2025445 PMAQI
13th Jul 2025426 PMAQI
13th Jul 2025397 PMAQI
13th Jul 2025388 PMAQI
13th Jul 2025459 PMAQI
13th Jul 20254010 PMAQI
13th Jul 20253111 PMAQI
14th Jul 20253412 AMAQI
14th Jul 2025331 AMAQI
14th Jul 2025292 AMAQI
14th Jul 2025303 AMAQI
14th Jul 2025324 AMAQI
25°C22/29°C
14th Jul 2025395 AMAQI
14th Jul 2025546 AMAQI
14th Jul 2025517 AMAQI
14th Jul 2025508 AMAQI
14th Jul 2025549 AMAQI
14th Jul 20255310 AMAQI
14th Jul 20255511 AMAQI
14th Jul 20255412 PMAQI
14th Jul 2025541 PMAQI
14th Jul 2025562 PMAQI
14th Jul 2025543 PMAQI
14th Jul 2025504 PMAQI
14th Jul 2025485 PMAQI
14th Jul 2025496 PMAQI
14th Jul 2025507 PMAQI
14th Jul 2025498 PMAQI
14th Jul 2025479 PMAQI
14th Jul 20254810 PMAQI
14th Jul 20254611 PMAQI
15th Jul 20254812 AMAQI
15th Jul 2025471 AMAQI
15th Jul 2025432 AMAQI
15th Jul 2025283 AMAQI
15th Jul 2025284 AMAQI
26°C20/32°C
15th Jul 2025355 AMAQI
15th Jul 2025356 AMAQI
15th Jul 2025407 AMAQI
15th Jul 2025458 AMAQI
15th Jul 2025589 AMAQI
15th Jul 20255710 AMAQI
15th Jul 20256011 AMAQI
15th Jul 20256012 PMAQI
15th Jul 2025461 PMAQI
15th Jul 2025502 PMAQI
15th Jul 2025503 PMAQI
15th Jul 2025504 PMAQI
15th Jul 2025505 PMAQI
15th Jul 2025506 PMAQI
15th Jul 2025507 PMAQI
15th Jul 2025508 PMAQI
15th Jul 2025509 PMAQI
15th Jul 20254710 PMAQI
15th Jul 20254711 PMAQI
16th Jul 20254612 AMAQI
16th Jul 2025461 AMAQI
16th Jul 2025442 AMAQI
16th Jul 2025443 AMAQI
16th Jul 2025524 AMAQI
26°C18/34°C
16th Jul 2025525 AMAQI
16th Jul 2025506 AMAQI
16th Jul 2025527 AMAQI
16th Jul 2025568 AMAQI
16th Jul 2025669 AMAQI
16th Jul 20256210 AMAQI
16th Jul 20256011 AMAQI
16th Jul 20256012 PMAQI
16th Jul 2025581 PMAQI
16th Jul 2025642 PMAQI
16th Jul 2025643 PMAQI
16th Jul 2025604 PMAQI
16th Jul 2025555 PMAQI
16th Jul 2025566 PMAQI
16th Jul 2025567 PMAQI
16th Jul 2025628 PMAQI
16th Jul 2025579 PMAQI
16th Jul 20255410 PMAQI
16th Jul 20255411 PMAQI
17th Jul 20255412 AMAQI
17th Jul 2025541 AMAQI
17th Jul 2025592 AMAQI
17th Jul 2025663 AMAQI
17th Jul 2025654 AMAQI
28°C19/35°C
17th Jul 2025625 AMAQI
17th Jul 2025666 AMAQI
17th Jul 2025607 AMAQI
17th Jul 2025528 AMAQI
17th Jul 2025489 AMAQI
17th Jul 20254210 AMAQI
17th Jul 20254111 AMAQI
17th Jul 20254212 PMAQI
17th Jul 2025481 PMAQI
17th Jul 2025472 PMAQI
17th Jul 2025433 PMAQI
17th Jul 2025444 PMAQI
17th Jul 2025445 PMAQI
17th Jul 2025466 PMAQI
17th Jul 2025437 PMAQI
17th Jul 2025418 PMAQI
17th Jul 2025469 PMAQI
17th Jul 20254510 PMAQI
17th Jul 20253211 PMAQI
18th Jul 20253412 AMAQI
18th Jul 2025321 AMAQI
18th Jul 2025192 AMAQI
18th Jul 2025193 AMAQI
18th Jul 2025194 AMAQI
24°C18/30°C
18th Jul 2025195 AMAQI
18th Jul 2025196 AMAQI
18th Jul 2025197 AMAQI
18th Jul 2025188 AMAQI
18th Jul 2025179 AMAQI
18th Jul 20251810 AMAQI
18th Jul 20251911 AMAQI
18th Jul 20252012 PMAQI
18th Jul 2025201 PMAQI
18th Jul 2025212 PMAQI
18th Jul 2025233 PMAQI
18th Jul 2025244 PMAQI
18th Jul 2025225 PMAQI
18th Jul 2025226 PMAQI
18th Jul 2025237 PMAQI
18th Jul 2025238 PMAQI
18th Jul 2025209 PMAQI
18th Jul 20252110 PMAQI
18th Jul 20252411 PMAQI
19th Jul 20252612 AMAQI
19th Jul 2025261 AMAQI
19th Jul 2025252 AMAQI
19th Jul 2025243 AMAQI
19th Jul 2025244 AMAQI
20°C12/29°C
19th Jul 2025265 AMAQI
19th Jul 2025256 AMAQI
19th Jul 2025267 AMAQI
19th Jul 2025278 AMAQI
19th Jul 2025279 AMAQI
19th Jul 20252910 AMAQI
19th Jul 20253411 AMAQI
19th Jul 20254012 PMAQI
19th Jul 2025491 PMAQI
19th Jul 2025472 PMAQI
19th Jul 2025463 PMAQI
19th Jul 2025464 PMAQI
19th Jul 2025425 PMAQI
19th Jul 2025416 PMAQI
19th Jul 2025407 PMAQI
19th Jul 2025418 PMAQI
19th Jul 2025369 PMAQI
19th Jul 20253610 PMAQI
19th Jul 20254211 PMAQI
20th Jul 20254012 AMAQI
20th Jul 2025401 AMAQI
20th Jul 2025372 AMAQI
20th Jul 2025343 AMAQI
20th Jul 2025304 AMAQI
22°C16/29°C
20th Jul 2025315 AMAQI
20th Jul 2025316 AMAQI
20th Jul 2025307 AMAQI
20th Jul 2025308 AMAQI
20th Jul 2025309 AMAQI
20th Jul 20253110 AMAQI
20th Jul 20253011 AMAQI
20th Jul 20252912 PMAQI
20th Jul 2025281 PMAQI
20th Jul 2025272 PMAQI
20th Jul 2025263 PMAQI
20th Jul 2025284 PMAQI
20th Jul 2025345 PMAQI
20th Jul 2025416 PMAQI
20th Jul 2025387 PMAQI
20th Jul 2025398 PMAQI
20th Jul 2025349 PMAQI
20th Jul 20253210 PMAQI
20th Jul 20253211 PMAQI
21st Jul 20253212 AMAQI
21st Jul 2025321 AMAQI
21st Jul 2025412 AMAQI
21st Jul 2025553 AMAQI
21st Jul 2025504 AMAQI
22°C18/29°C
21st Jul 2025365 AMAQI
21st Jul 2025296 AMAQI
21st Jul 2025267 AMAQI
21st Jul 2025248 AMAQI
21st Jul 2025249 AMAQI
21st Jul 20252210 AMAQI
21st Jul 20252211 AMAQI
21st Jul 20252012 PMAQI
21st Jul 2025201 PMAQI
21st Jul 2025202 PMAQI
21st Jul 2025183 PMAQI
21st Jul 2025204 PMAQI
21st Jul 2025225 PMAQI
21st Jul 2025226 PMAQI
21st Jul 2025227 PMAQI
21st Jul 2025228 PMAQI
21st Jul 2025239 PMAQI
21st Jul 20252210 PMAQI
21st Jul 20252111 PMAQI
22nd Jul 20252212 AMAQI
22nd Jul 2025221 AMAQI
22nd Jul 2025202 AMAQI
22nd Jul 2025183 AMAQI
22nd Jul 2025174 AMAQI
18°C14/21°C
22nd Jul 2025175 AMAQI
22nd Jul 2025176 AMAQI
22nd Jul 2025177 AMAQI
22nd Jul 2025168 AMAQI
22nd Jul 2025169 AMAQI
22nd Jul 20251710 AMAQI
22nd Jul 20251811 AMAQI
22nd Jul 20251712 PMAQI
22nd Jul 2025161 PMAQI
22nd Jul 2025182 PMAQI
22nd Jul 2025163 PMAQI
22nd Jul 2025174 PMAQI
22nd Jul 2025175 PMAQI
22nd Jul 2025166 PMAQI
22nd Jul 2025177 PMAQI
22nd Jul 2025178 PMAQI
22nd Jul 2025189 PMAQI
22nd Jul 20251810 PMAQI
22nd Jul 20251811 PMAQI
23rd Jul 20251812 AMAQI
23rd Jul 2025191 AMAQI
23rd Jul 2025212 AMAQI
23rd Jul 2025223 AMAQI
23rd Jul 2025244 AMAQI
19°C10/26°C
23rd Jul 2025245 AMAQI
23rd Jul 2025246 AMAQI
23rd Jul 2025257 AMAQI
23rd Jul 2025298 AMAQI
23rd Jul 2025479 AMAQI
23rd Jul 20253710 AMAQI
23rd Jul 20253211 AMAQI
23rd Jul 20252912 PMAQI
23rd Jul 2025181 PMAQI
23rd Jul 2025202 PMAQI
23rd Jul 2025183 PMAQI
23rd Jul 2025184 PMAQI
23rd Jul 2025205 PMAQI
23rd Jul 2025236 PMAQI
23rd Jul 2025227 PMAQI
23rd Jul 2025238 PMAQI
23rd Jul 2025229 PMAQI
23rd Jul 20252210 PMAQI
23rd Jul 20252511 PMAQI
24th Jul 20252312 AMAQI
24th Jul 2025241 AMAQI
24th Jul 2025232 AMAQI
24th Jul 2025233 AMAQI
24th Jul 2025224 AMAQI
21°C14/27°C
24th Jul 2025215 AMAQI
24th Jul 2025226 AMAQI
24th Jul 2025237 AMAQI
24th Jul 2025248 AMAQI
24th Jul 2025269 AMAQI
24th Jul 20253010 AMAQI
24th Jul 20253011 AMAQI
24th Jul 20252612 PMAQI
24th Jul 2025281 PMAQI
24th Jul 2025332 PMAQI
24th Jul 2025263 PMAQI
24th Jul 2025364 PMAQI
24th Jul 2025375 PMAQI
24th Jul 2025396 PMAQI
24th Jul 2025407 PMAQI
24th Jul 2025388 PMAQI
24th Jul 2025269 PMAQI
24th Jul 20253010 PMAQI
24th Jul 20254111 PMAQI
25th Jul 20253812 AMAQI
25th Jul 2025361 AMAQI
25th Jul 2025352 AMAQI
25th Jul 2025343 AMAQI
25th Jul 2025314 AMAQI
26°C16/35°C
25th Jul 2025305 AMAQI
25th Jul 2025286 AMAQI
25th Jul 2025287 AMAQI
25th Jul 2025288 AMAQI
25th Jul 2025269 AMAQI
25th Jul 20252610 AMAQI
25th Jul 20253011 AMAQI
25th Jul 20252412 PMAQI
25th Jul 2025291 PMAQI
25th Jul 2025352 PMAQI
25th Jul 2025503 PMAQI
25th Jul 2025414 PMAQI
25th Jul 2025315 PMAQI
25th Jul 2025326 PMAQI
25th Jul 2025317 PMAQI
25th Jul 2025318 PMAQI
25th Jul 2025369 PMAQI
25th Jul 20253610 PMAQI
25th Jul 20253211 PMAQI
26th Jul 20253312 AMAQI
26th Jul 2025321 AMAQI
26th Jul 2025352 AMAQI
26th Jul 2025483 AMAQI
26th Jul 2025504 AMAQI
26°C22/31°C
26th Jul 2025535 AMAQI
26th Jul 2025546 AMAQI
26th Jul 2025587 AMAQI
26th Jul 2025578 AMAQI
26th Jul 2025589 AMAQI
26th Jul 20255710 AMAQI
26th Jul 20255511 AMAQI
26th Jul 20254912 PMAQI
26th Jul 2025521 PMAQI
26th Jul 2025502 PMAQI
26th Jul 2025583 PMAQI
26th Jul 2025564 PMAQI
26th Jul 2025525 PMAQI
26th Jul 2025536 PMAQI
26th Jul 2025527 PMAQI
26th Jul 2025528 PMAQI
26th Jul 2025529 PMAQI
26th Jul 20255310 PMAQI
26th Jul 20255211 PMAQI
27th Jul 20255612 AMAQI
27th Jul 2025531 AMAQI
27th Jul 2025582 AMAQI
27th Jul 2025603 AMAQI
27th Jul 2025584 AMAQI
25°C18/33°C
27th Jul 2025585 AMAQI
27th Jul 2025606 AMAQI
27th Jul 2025607 AMAQI
27th Jul 2025628 AMAQI
27th Jul 2025629 AMAQI
27th Jul 20256210 AMAQI
27th Jul 20256311 AMAQI
27th Jul 20256212 PMAQI
27th Jul 2025581 PMAQI
27th Jul 2025582 PMAQI
27th Jul 2025563 PMAQI
27th Jul 2025564 PMAQI
27th Jul 2025585 PMAQI
27th Jul 2025586 PMAQI
27th Jul 2025587 PMAQI
27th Jul 2025588 PMAQI
27th Jul 2025589 PMAQI
27th Jul 20255810 PMAQI
27th Jul 20255711 PMAQI
28th Jul 20255812 AMAQI
28th Jul 2025581 AMAQI
28th Jul 2025572 AMAQI
28th Jul 2025603 AMAQI
28th Jul 2025604 AMAQI
26°C20/34°C
28th Jul 2025615 AMAQI
28th Jul 2025626 AMAQI
28th Jul 2025637 AMAQI
28th Jul 2025628 AMAQI
28th Jul 2025629 AMAQI
28th Jul 20256210 AMAQI
28th Jul 20256111 AMAQI
28th Jul 20256012 PMAQI
28th Jul 2025651 PMAQI
28th Jul 2025642 PMAQI
28th Jul 2025643 PMAQI
28th Jul 2025624 PMAQI
28th Jul 2025615 PMAQI
28th Jul 2025626 PMAQI
28th Jul 2025617 PMAQI
28th Jul 2025608 PMAQI
28th Jul 2025609 PMAQI
28th Jul 20256010 PMAQI
28th Jul 20255811 PMAQI
29th Jul 20255912 AMAQI
29th Jul 2025601 AMAQI
29th Jul 2025582 AMAQI
29th Jul 2025573 AMAQI
29th Jul 2025564 AMAQI
28°C20/37°C
29th Jul 2025495 AMAQI
29th Jul 2025396 AMAQI
29th Jul 2025337 AMAQI
29th Jul 2025318 AMAQI
29th Jul 2025339 AMAQI
29th Jul 20253310 AMAQI
29th Jul 20253411 AMAQI
29th Jul 20253412 PMAQI
29th Jul 2025381 PMAQI
29th Jul 2025402 PMAQI
29th Jul 2025443 PMAQI
29th Jul 2025484 PMAQI
29th Jul 2025545 PMAQI
29th Jul 2025556 PMAQI
29th Jul 2025567 PMAQI
29th Jul 2025568 PMAQI
29th Jul 2025559 PMAQI
29th Jul 20255410 PMAQI
29th Jul 20255211 PMAQI
30th Jul 20255112 AMAQI
30th Jul 2025481 AMAQI
30th Jul 2025492 AMAQI
30th Jul 2025603 AMAQI
30th Jul 2025634 AMAQI
25°C22/31°C
30th Jul 2025625 AMAQI
30th Jul 2025656 AMAQI
30th Jul 2025657 AMAQI
30th Jul 2025638 AMAQI
30th Jul 2025639 AMAQI
30th Jul 20256510 AMAQI
30th Jul 20256811 AMAQI
30th Jul 20256612 PMAQI
30th Jul 2025661 PMAQI
30th Jul 2025672 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 20256212 AMAQI
31st Jul 2025621 AMAQI
31st Jul 2025602 AMAQI
31st Jul 2025613 AMAQI
31st Jul 2025604 AMAQI
24°C19/30°C
31st Jul 2025685 AMAQI
31st Jul 2025656 AMAQI
31st Jul 2025607 AMAQI
31st Jul 2025668 AMAQI
31st Jul 2025769 AMAQI
31st Jul 20256810 AMAQI
31st Jul 20255911 AMAQI
31st Jul 20254912 PMAQI
31st Jul 2025411 PMAQI
31st Jul 2025342 PMAQI
31st Jul 2025313 PMAQI
31st Jul 2025304 PMAQI
31st Jul 2025325 PMAQI
31st Jul 2025306 PMAQI
31st Jul 2025277 PMAQI
31st Jul 2025288 PMAQI
31st Jul 2025729 PMAQI
31st Jul 20255010 PMAQI
31st Jul 20252811 PMAQI
1st Aug 20252712 AMAQI
1st Aug 2025281 AMAQI
1st Aug 2025362 AMAQI
1st Aug 2025293 AMAQI
1st Aug 2025254 AMAQI
21°C16/25°C
1st Aug 2025235 AMAQI
1st Aug 2025206 AMAQI
1st Aug 2025207 AMAQI
1st Aug 2025188 AMAQI
1st Aug 2025169 AMAQI
1st Aug 20251810 AMAQI
1st Aug 20251711 AMAQI
1st Aug 20251712 PMAQI
1st Aug 2025171 PMAQI
1st Aug 2025182 PMAQI
1st Aug 2025173 PMAQI
1st Aug 2025164 PMAQI
1st Aug 2025165 PMAQI
1st Aug 2025176 PMAQI
1st Aug 2025167 PMAQI
1st Aug 2025168 PMAQI
1st Aug 2025189 PMAQI
1st Aug 20251910 PMAQI
1st Aug 20252011 PMAQI
2nd Aug 20252112 AMAQI
2nd Aug 2025231 AMAQI
2nd Aug 2025252 AMAQI
2nd Aug 2025263 AMAQI
2nd Aug 2025244 AMAQI
19°C12/26°C
2nd Aug 2025315 AMAQI
5 AM2nd Aug 2025296 AMAQI
2nd Aug 2025257 AMAQI
2nd Aug 2025248 AMAQI
2nd Aug 2025239 AMAQI
2nd Aug 20252310 AMAQI
2nd Aug 20252411 AMAQI
2nd Aug 20253612 PMAQI
12 PM2nd Aug 2025541 PMAQI
2nd Aug 2025622 PMAQI
2nd Aug 2025623 PMAQI
2nd Aug 2025534 PMAQI
8 PM
12 AM
4 AM
--°C/°C
Day time
Avg. Highest Time
5 AM - 8 PM
39AQI
16 hours / Day
480 hours / Month
Avg. Lowest Time
5 AM - 8 AM
39AQI
4 hours / Day
120 hours / Month
In the last 30 days, during the daytime, the highest AQI was between 5 AM to 8 PM (Avg. 39), while the lowest AQI was between 5 AM to 8 AM (Avg. 39).
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
Lower Town, Ottawa, Ontario, Canada
2025
91%
116
9%
12
Total number of days with different AQI categories in last 214 days in 2025 (151 days remaining)
Good
116 DaysModerate
12 DaysPoor
0 DaysUnhealthy
0 DaysSevere
0 DaysHazardous
0 DaysUnder WHO’s Safe Air Quality Limits: 91%
Health Risk Level:
Very Low
In 2025, 91% of 214 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
Lower Town, Ottawa, Ontario, Canada
AQI levels in 2025
AQI
PM2.5
PM10
CO
SO2
NO2
O3
Sun.Mon.Tue.Wed.Thu.Fri.Sat.
Jan.
Feb.
Mar.
Apr.
May
Jun.
Jul.
Aug.
Sep.
Oct.
Nov.
Dec.
1st March 2025
18AQI
18AQI
2nd March 2025
19AQI
19AQI
3rd March 2025
18AQI
18AQI
4th March 2025
21AQI
21AQI
5th March 2025
26AQI
26AQI
1st April 2025
16AQI
16AQI
2nd April 2025
19AQI
19AQI
3rd April 2025
24AQI
24AQI
4th April 2025
17AQI
17AQI
5th April 2025
21AQI
21AQI
6th April 2025
19AQI
19AQI
7th April 2025
21AQI
21AQI
8th April 2025
18AQI
18AQI
9th April 2025
16AQI
16AQI
10th April 2025
25AQI
25AQI
11th April 2025
35AQI
35AQI
12th April 2025
29AQI
29AQI
13th April 2025
30AQI
30AQI
14th April 2025
28AQI
28AQI
15th April 2025
24AQI
24AQI
16th April 2025
15AQI
15AQI
17th April 2025
16AQI
16AQI
18th April 2025
30AQI
30AQI
19th April 2025
42AQI
42AQI
20th April 2025
15AQI
15AQI
21st April 2025
21AQI
21AQI
22nd April 2025
16AQI
16AQI
23rd April 2025
13AQI
13AQI
24th April 2025
18AQI
18AQI
25th April 2025
21AQI
21AQI
26th April 2025
16AQI
16AQI
27th April 2025
12AQI
12AQI
28th April 2025
17AQI
17AQI
29th April 2025
26AQI
26AQI
30th April 2025
15AQI
15AQI
1st May 2025
23AQI
23AQI
2nd May 2025
23AQI
23AQI
3rd May 2025
14AQI
14AQI
4th May 2025
17AQI
17AQI
5th May 2025
17AQI
17AQI
6th May 2025
18AQI
18AQI
7th May 2025
19AQI
19AQI
8th May 2025
15AQI
15AQI
9th May 2025
17AQI
17AQI
10th May 2025
18AQI
18AQI
11th May 2025
16AQI
16AQI
12th May 2025
19AQI
19AQI
13th May 2025
28AQI
28AQI
14th May 2025
31AQI
31AQI
15th May 2025
28AQI
28AQI
16th May 2025
35AQI
35AQI
17th May 2025
36AQI
36AQI
18th May 2025
15AQI
15AQI
19th May 2025
12AQI
12AQI
20th May 2025
12AQI
12AQI
21st May 2025
20AQI
20AQI
22nd May 2025
15AQI
15AQI
23rd May 2025
16AQI
16AQI
24th May 2025
12AQI
12AQI
25th May 2025
16AQI
16AQI
26th May 2025
22AQI
22AQI
27th May 2025
23AQI
23AQI
28th May 2025
27AQI
27AQI
29th May 2025
22AQI
22AQI
30th May 2025
23AQI
23AQI
31st May 2025
24AQI
24AQI
1st June 2025
12AQI
12AQI
2nd June 2025
17AQI
17AQI
3rd June 2025
28AQI
28AQI
4th June 2025
45AQI
45AQI
5th June 2025
46AQI
46AQI
6th June 2025
53AQI
53AQI
7th June 2025
59AQI
59AQI
8th June 2025
57AQI
57AQI
9th June 2025
58AQI
58AQI
10th June 2025
44AQI
44AQI
11th June 2025
51AQI
51AQI
12th June 2025
54AQI
54AQI
13th June 2025
26AQI
26AQI
14th June 2025
23AQI
23AQI
15th June 2025
29AQI
29AQI
16th June 2025
37AQI
37AQI
17th June 2025
31AQI
31AQI
18th June 2025
31AQI
31AQI
19th June 2025
34AQI
34AQI
20th June 2025
20AQI
20AQI
21st June 2025
26AQI
26AQI
22nd June 2025
28AQI
28AQI
23rd June 2025
42AQI
42AQI
24th June 2025
51AQI
51AQI
25th June 2025
42AQI
42AQI
26th June 2025
25AQI
25AQI
27th June 2025
26AQI
26AQI
28th June 2025
28AQI
28AQI
29th June 2025
21AQI
21AQI
30th June 2025
30AQI
30AQI
1st July 2025
36AQI
36AQI
2nd July 2025
34AQI
34AQI
3rd July 2025
45AQI
45AQI
4th July 2025
26AQI
26AQI
5th July 2025
28AQI
28AQI
6th July 2025
46AQI
46AQI
7th July 2025
46AQI
46AQI
8th July 2025
27AQI
27AQI
9th July 2025
27AQI
27AQI
10th July 2025
34AQI
34AQI
11th July 2025
40AQI
40AQI
12th July 2025
48AQI
48AQI
13th July 2025
44AQI
44AQI
14th July 2025
44AQI
44AQI
15th July 2025
46AQI
46AQI
16th July 2025
54AQI
54AQI
17th July 2025
50AQI
50AQI
18th July 2025
24AQI
24AQI
19th July 2025
33AQI
33AQI
20th July 2025
34AQI
34AQI
21st July 2025
28AQI
28AQI
22nd July 2025
18AQI
18AQI
23rd July 2025
23AQI
23AQI
24th July 2025
28AQI
28AQI
25th July 2025
33AQI
33AQI
26th July 2025
48AQI
48AQI
27th July 2025
58AQI
58AQI
28th July 2025
60AQI
60AQI
29th July 2025
50AQI
50AQI
30th July 2025
61AQI
61AQI
31st July 2025
52AQI
52AQI
1st August 2025
22AQI
22AQI
20AQI
21AQI
20AQI
36AQI
40AQI
22AQI
No. of days
Jan.Feb.Mar.Apr.MayJun.Jul.Aug.Sep.Oct.Nov.Dec.Total Days
202529AQI
5
30
31
23
7
26
5
1
116
12
Highest AQI recorded in
July40AQI
Lowest AQI recorded in
March20AQI
Most & Least Polluted Years Over the Last 1 Years
Most Polluted Year Recorded
2025(Avg.)
29AQILeast Polluted Year Recorded
2025(Avg.)
29AQILower Town's annual 2025 AQI (29) shows an average percentage change of NaN% (improved AQI) compared to previous years: .
