Country Background
HistoryAQIPM2.5PM10COSO2NO2O3

Hamilton West, Hamilton, 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

Hamilton West, Hamilton, Ontario, Canada

2021
2022
2023
2024
2025
AQI
.
Days

AQI Trends: Highest and Lowest

Highest AQI recorded on
16th Aug 2023
85AQI
Lowest AQI recorded on
31st Aug 2022
18AQI

Same Day Analysis (1st August ):
On this day, AQI across the 5 years varied significantly: 2025 ranks 1st highest AQI at 64 of Moderate air quality on the same day.

Download 2024 Annual Data

World Air Quality Report

Globe

Day & Night AQI Trend: 1st Aug - 2nd Aug 2025

Hamilton West, Hamilton, Ontario, Canada

AQI
Day
Night
.

5 AM1st Aug 2025

8 PM

4 AM2nd Aug 2025

Day time
Avg. Highest Time
6AM1st Aug

76AQI

Avg. Lowest Time
8PM1st Aug

24AQI

Night time
Avg. Highest Time
5AM1st Aug

74AQI

Avg. Lowest Time
4AM2nd Aug

22AQI

In the last 24 hours,

Hamilton West's AQI reached its highest point of 76 at 6 AM during the Day, while the lowest point, 22, was recorded at 4 AM during the Night between 1st Aug and 2nd Aug 2025.

Day & Night AQI Trend : Jul - Aug 2025

Hamilton West, Hamilton, 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 2025445 AMAQI
3rd Jul 2025506 AMAQI
3rd Jul 2025517 AMAQI
3rd Jul 2025488 AMAQI
3rd Jul 2025489 AMAQI
3rd Jul 20255010 AMAQI
3rd Jul 20255211 AMAQI
3rd Jul 20255312 PMAQI
3rd Jul 2025521 PMAQI
3rd Jul 2025512 PMAQI
3rd Jul 2025503 PMAQI
3rd Jul 2025504 PMAQI
3rd Jul 2025505 PMAQI
3rd Jul 2025506 PMAQI
3rd Jul 2025517 PMAQI
3rd Jul 2025528 PMAQI
3rd Jul 2025519 PMAQI
3rd Jul 20254810 PMAQI
3rd Jul 20254511 PMAQI
4th Jul 20254512 AMAQI
4th Jul 2025451 AMAQI
4th Jul 2025392 AMAQI
4th Jul 2025363 AMAQI
4th Jul 2025334 AMAQI

23°C18/31°C

4th Jul 2025325 AMAQI
4th Jul 2025366 AMAQI
4th Jul 2025347 AMAQI
4th Jul 2025398 AMAQI
4th Jul 2025379 AMAQI
4th Jul 20253710 AMAQI
4th Jul 20253611 AMAQI
4th Jul 20253712 PMAQI
4th Jul 2025371 PMAQI
4th Jul 2025382 PMAQI
4th Jul 2025353 PMAQI
4th Jul 2025354 PMAQI
4th Jul 2025365 PMAQI
4th Jul 2025366 PMAQI
4th Jul 2025347 PMAQI
4th Jul 2025358 PMAQI
4th Jul 2025369 PMAQI
4th Jul 20253810 PMAQI
4th Jul 20253711 PMAQI
5th Jul 20253912 AMAQI
5th Jul 2025451 AMAQI
5th Jul 2025462 AMAQI
5th Jul 2025443 AMAQI
5th Jul 2025494 AMAQI

22°C14/29°C

5th Jul 2025485 AMAQI
5th Jul 2025436 AMAQI
5th Jul 2025457 AMAQI
5th Jul 2025428 AMAQI
5th Jul 2025419 AMAQI
5th Jul 20254210 AMAQI
5th Jul 20254411 AMAQI
5th Jul 20255212 PMAQI
5th Jul 2025531 PMAQI
5th Jul 2025542 PMAQI
5th Jul 2025543 PMAQI
5th Jul 2025544 PMAQI
5th Jul 2025525 PMAQI
5th Jul 2025496 PMAQI
5th Jul 2025487 PMAQI
5th Jul 2025498 PMAQI
5th Jul 2025469 PMAQI
5th Jul 20254410 PMAQI
5th Jul 20254411 PMAQI
6th Jul 20254312 AMAQI
6th Jul 2025501 AMAQI
6th Jul 2025502 AMAQI
6th Jul 2025503 AMAQI
6th Jul 2025504 AMAQI

25°C17/34°C

6th Jul 2025505 AMAQI
6th Jul 2025516 AMAQI
6th Jul 2025527 AMAQI
6th Jul 2025528 AMAQI
6th Jul 2025539 AMAQI
6th Jul 20255410 AMAQI
6th Jul 20255411 AMAQI
6th Jul 20255412 PMAQI
6th Jul 2025521 PMAQI
6th Jul 2025532 PMAQI
6th Jul 2025513 PMAQI
6th Jul 2025484 PMAQI
6th Jul 2025525 PMAQI
6th Jul 2025516 PMAQI
6th Jul 2025527 PMAQI
6th Jul 2025528 PMAQI
6th Jul 2025529 PMAQI
6th Jul 20255210 PMAQI
6th Jul 20255111 PMAQI
7th Jul 20255212 AMAQI
7th Jul 2025521 AMAQI
7th Jul 2025522 AMAQI
7th Jul 2025523 AMAQI
7th Jul 2025524 AMAQI

28°C21/36°C

7th Jul 2025525 AMAQI
7th Jul 2025526 AMAQI
7th Jul 2025527 AMAQI
7th Jul 2025518 AMAQI
7th Jul 2025539 AMAQI
7th Jul 20255210 AMAQI
7th Jul 20255111 AMAQI
7th Jul 20254612 PMAQI
7th Jul 2025421 PMAQI
7th Jul 2025422 PMAQI
7th Jul 2025403 PMAQI
7th Jul 2025424 PMAQI
7th Jul 2025425 PMAQI
7th Jul 2025416 PMAQI
7th Jul 2025407 PMAQI
7th Jul 2025408 PMAQI
7th Jul 2025449 PMAQI
7th Jul 20254310 PMAQI
7th Jul 20254011 PMAQI
8th Jul 20253812 AMAQI
8th Jul 2025411 AMAQI
8th Jul 2025382 AMAQI
8th Jul 2025313 AMAQI
8th Jul 2025304 AMAQI

25°C21/28°C

8th Jul 2025305 AMAQI
8th Jul 2025306 AMAQI
8th Jul 2025307 AMAQI
8th Jul 2025308 AMAQI
8th Jul 2025329 AMAQI
8th Jul 20253210 AMAQI
8th Jul 20253511 AMAQI
8th Jul 20253412 PMAQI
8th Jul 2025341 PMAQI
8th Jul 2025342 PMAQI
8th Jul 2025363 PMAQI
8th Jul 2025404 PMAQI
8th Jul 2025405 PMAQI
8th Jul 2025426 PMAQI
8th Jul 2025437 PMAQI
8th Jul 2025418 PMAQI
8th Jul 2025359 PMAQI
8th Jul 20253410 PMAQI
8th Jul 20253511 PMAQI
9th Jul 20253412 AMAQI
9th Jul 2025341 AMAQI
9th Jul 2025312 AMAQI
9th Jul 2025343 AMAQI
9th Jul 2025374 AMAQI

22°C19/27°C

9th Jul 2025405 AMAQI
9th Jul 2025406 AMAQI
9th Jul 2025407 AMAQI
9th Jul 2025378 AMAQI
9th Jul 2025399 AMAQI
9th Jul 20254410 AMAQI
9th Jul 20254411 AMAQI
9th Jul 20254412 PMAQI
9th Jul 2025441 PMAQI
9th Jul 2025472 PMAQI
9th Jul 2025483 PMAQI
9th Jul 2025464 PMAQI
9th Jul 2025445 PMAQI
9th Jul 2025436 PMAQI
9th Jul 2025437 PMAQI
9th Jul 2025428 PMAQI
9th Jul 2025409 PMAQI
9th Jul 20253910 PMAQI
9th Jul 20253811 PMAQI
10th Jul 20253712 AMAQI
10th Jul 2025361 AMAQI
10th Jul 2025322 AMAQI
10th Jul 2025353 AMAQI
10th Jul 2025344 AMAQI

22°C18/26°C

10th Jul 2025345 AMAQI
10th Jul 2025346 AMAQI
10th Jul 2025347 AMAQI
10th Jul 2025348 AMAQI
10th Jul 2025359 AMAQI
10th Jul 20253410 AMAQI
10th Jul 20253711 AMAQI
10th Jul 20253812 PMAQI
10th Jul 2025421 PMAQI
10th Jul 2025462 PMAQI
10th Jul 2025483 PMAQI
10th Jul 2025484 PMAQI
10th Jul 2025495 PMAQI
10th Jul 2025446 PMAQI
10th Jul 2025447 PMAQI
10th Jul 2025458 PMAQI
10th Jul 2025409 PMAQI
10th Jul 20253910 PMAQI
10th Jul 20254611 PMAQI
11th Jul 20254412 AMAQI
11th Jul 2025471 AMAQI
11th Jul 2025542 AMAQI
11th Jul 2025523 AMAQI
11th Jul 2025544 AMAQI

24°C18/29°C

11th Jul 2025545 AMAQI
11th Jul 2025556 AMAQI
11th Jul 2025547 AMAQI
11th Jul 2025548 AMAQI
11th Jul 2025559 AMAQI
11th Jul 20255610 AMAQI
11th Jul 20255611 AMAQI
11th Jul 20255612 PMAQI
11th Jul 2025541 PMAQI
11th Jul 2025542 PMAQI
11th Jul 2025523 PMAQI
11th Jul 2025524 PMAQI
11th Jul 2025525 PMAQI
11th Jul 2025526 PMAQI
11th Jul 2025527 PMAQI
11th Jul 2025528 PMAQI
11th Jul 2025529 PMAQI
11th Jul 20255210 PMAQI
11th Jul 20254911 PMAQI
12th Jul 20255012 AMAQI
12th Jul 2025501 AMAQI
12th Jul 2025452 AMAQI
12th Jul 2025463 AMAQI
12th Jul 2025434 AMAQI

26°C20/31°C

12th Jul 2025445 AMAQI
12th Jul 2025426 AMAQI
12th Jul 2025427 AMAQI
12th Jul 2025398 AMAQI
12th Jul 2025439 AMAQI
12th Jul 20254210 AMAQI
12th Jul 20254211 AMAQI
12th Jul 20254012 PMAQI
12th Jul 2025421 PMAQI
12th Jul 2025422 PMAQI
12th Jul 2025483 PMAQI
12th Jul 2025474 PMAQI
12th Jul 2025455 PMAQI
12th Jul 2025476 PMAQI
12th Jul 2025477 PMAQI
12th Jul 2025468 PMAQI
12th Jul 2025469 PMAQI
12th Jul 20254310 PMAQI
12th Jul 20254611 PMAQI
13th Jul 20254412 AMAQI
13th Jul 2025461 AMAQI
13th Jul 2025432 AMAQI
13th Jul 2025423 AMAQI
13th Jul 2025424 AMAQI

29°C22/36°C

13th Jul 2025415 AMAQI
13th Jul 2025406 AMAQI
13th Jul 2025387 AMAQI
13th Jul 2025408 AMAQI
13th Jul 2025429 AMAQI
13th Jul 20254210 AMAQI
13th Jul 20254211 AMAQI
13th Jul 20254112 PMAQI
13th Jul 2025391 PMAQI
13th Jul 2025382 PMAQI
13th Jul 2025363 PMAQI
13th Jul 2025384 PMAQI
13th Jul 2025375 PMAQI
13th Jul 2025386 PMAQI
13th Jul 2025387 PMAQI
13th Jul 2025398 PMAQI
13th Jul 2025419 PMAQI
13th Jul 20254210 PMAQI
13th Jul 20254611 PMAQI
14th Jul 20255112 AMAQI
14th Jul 2025441 AMAQI
14th Jul 2025532 AMAQI
14th Jul 2025503 AMAQI
14th Jul 2025494 AMAQI

27°C23/30°C

14th Jul 2025365 AMAQI
14th Jul 2025376 AMAQI
14th Jul 2025477 AMAQI
14th Jul 2025448 AMAQI
14th Jul 2025509 AMAQI
14th Jul 20255010 AMAQI
14th Jul 20254811 AMAQI
14th Jul 20255212 PMAQI
14th Jul 2025481 PMAQI
14th Jul 2025512 PMAQI
14th Jul 2025483 PMAQI
14th Jul 2025484 PMAQI
14th Jul 2025485 PMAQI
14th Jul 2025506 PMAQI
14th Jul 2025517 PMAQI
14th Jul 2025518 PMAQI
14th Jul 2025479 PMAQI
14th Jul 20254710 PMAQI
14th Jul 20254911 PMAQI
15th Jul 20255012 AMAQI
15th Jul 2025491 AMAQI
15th Jul 2025562 AMAQI
15th Jul 2025553 AMAQI
15th Jul 2025564 AMAQI

27°C22/34°C

15th Jul 2025585 AMAQI
15th Jul 2025626 AMAQI
15th Jul 2025627 AMAQI
15th Jul 2025638 AMAQI
15th Jul 2025589 AMAQI
15th Jul 20255810 AMAQI
15th Jul 20255811 AMAQI
15th Jul 20255812 PMAQI
15th Jul 2025571 PMAQI
15th Jul 2025572 PMAQI
15th Jul 2025573 PMAQI
15th Jul 2025584 PMAQI
15th Jul 2025585 PMAQI
15th Jul 2025586 PMAQI
15th Jul 2025587 PMAQI
15th Jul 2025588 PMAQI
15th Jul 2025579 PMAQI
15th Jul 20255810 PMAQI
15th Jul 20255811 PMAQI
16th Jul 20255712 AMAQI
16th Jul 2025561 AMAQI
16th Jul 2025582 AMAQI
16th Jul 2025683 AMAQI
16th Jul 2025704 AMAQI

27°C20/35°C

16th Jul 2025725 AMAQI
16th Jul 2025746 AMAQI
16th Jul 2025767 AMAQI
16th Jul 2025748 AMAQI
16th Jul 2025659 AMAQI
16th Jul 20256710 AMAQI
16th Jul 20256311 AMAQI
16th Jul 20256412 PMAQI
16th Jul 2025661 PMAQI
16th Jul 2025682 PMAQI
16th Jul 2025663 PMAQI
16th Jul 2025664 PMAQI
16th Jul 2025665 PMAQI
16th Jul 2025666 PMAQI
16th Jul 2025657 PMAQI
16th Jul 2025668 PMAQI
16th Jul 2025639 PMAQI
16th Jul 20256210 PMAQI
16th Jul 20255911 PMAQI
17th Jul 20255712 AMAQI
17th Jul 2025581 AMAQI
17th Jul 2025392 AMAQI
17th Jul 2025403 AMAQI
17th Jul 2025384 AMAQI

26°C18/36°C

17th Jul 2025375 AMAQI
17th Jul 2025366 AMAQI
17th Jul 2025367 AMAQI
17th Jul 2025368 AMAQI
17th Jul 2025399 AMAQI
17th Jul 20253710 AMAQI
17th Jul 20253811 AMAQI
17th Jul 20253912 PMAQI
17th Jul 2025471 PMAQI
17th Jul 2025442 PMAQI
17th Jul 2025343 PMAQI
17th Jul 2025324 PMAQI
17th Jul 2025355 PMAQI
17th Jul 2025336 PMAQI
17th Jul 2025337 PMAQI
17th Jul 2025358 PMAQI
17th Jul 2025369 PMAQI
17th Jul 20253510 PMAQI
17th Jul 20253011 PMAQI
18th Jul 20253112 AMAQI
18th Jul 2025281 AMAQI
18th Jul 2025212 AMAQI
18th Jul 2025193 AMAQI
18th Jul 2025194 AMAQI

24°C18/29°C

18th Jul 2025205 AMAQI
18th Jul 2025196 AMAQI
18th Jul 2025197 AMAQI
18th Jul 2025198 AMAQI
18th Jul 2025199 AMAQI
18th Jul 20252010 AMAQI
18th Jul 20251911 AMAQI
18th Jul 20252012 PMAQI
18th Jul 2025201 PMAQI
18th Jul 2025202 PMAQI
18th Jul 2025203 PMAQI
18th Jul 2025214 PMAQI
18th Jul 2025215 PMAQI
18th Jul 2025216 PMAQI
18th Jul 2025217 PMAQI
18th Jul 2025228 PMAQI
18th Jul 2025209 PMAQI
18th Jul 20252010 PMAQI
18th Jul 20252211 PMAQI
19th Jul 20252312 AMAQI
19th Jul 2025241 AMAQI
19th Jul 2025252 AMAQI
19th Jul 2025263 AMAQI
19th Jul 2025284 AMAQI

20°C14/27°C

19th Jul 2025285 AMAQI
19th Jul 2025286 AMAQI
19th Jul 2025287 AMAQI
19th Jul 2025288 AMAQI
19th Jul 2025289 AMAQI
19th Jul 20252810 AMAQI
19th Jul 20253211 AMAQI
19th Jul 20253412 PMAQI
19th Jul 2025351 PMAQI
19th Jul 2025332 PMAQI
19th Jul 2025333 PMAQI
19th Jul 2025324 PMAQI
19th Jul 2025305 PMAQI
19th Jul 2025286 PMAQI
19th Jul 2025277 PMAQI
19th Jul 2025278 PMAQI
19th Jul 2025289 PMAQI
19th Jul 20252810 PMAQI
19th Jul 20252611 PMAQI
20th Jul 20252612 AMAQI
20th Jul 2025261 AMAQI
20th Jul 2025232 AMAQI
20th Jul 2025263 AMAQI
20th Jul 2025254 AMAQI

23°C15/31°C

20th Jul 2025255 AMAQI
20th Jul 2025266 AMAQI
20th Jul 2025247 AMAQI
20th Jul 2025268 AMAQI
20th Jul 2025249 AMAQI
20th Jul 20252510 AMAQI
20th Jul 20252511 AMAQI
20th Jul 20252512 PMAQI
20th Jul 2025231 PMAQI
20th Jul 2025242 PMAQI
20th Jul 2025243 PMAQI
20th Jul 2025244 PMAQI
20th Jul 2025245 PMAQI
20th Jul 2025256 PMAQI
20th Jul 2025247 PMAQI
20th Jul 2025268 PMAQI
20th Jul 2025259 PMAQI
20th Jul 20252610 PMAQI
20th Jul 20253011 PMAQI
21st Jul 20253312 AMAQI
21st Jul 2025351 AMAQI
21st Jul 2025422 AMAQI
21st Jul 2025433 AMAQI
21st Jul 2025504 AMAQI

23°C19/28°C

21st Jul 2025555 AMAQI
21st Jul 2025586 AMAQI
21st Jul 2025587 AMAQI
21st Jul 2025578 AMAQI
21st Jul 2025529 AMAQI
21st Jul 20255010 AMAQI
21st Jul 20254011 AMAQI
21st Jul 20253612 PMAQI
21st Jul 2025331 PMAQI
21st Jul 2025322 PMAQI
21st Jul 2025313 PMAQI
21st Jul 2025324 PMAQI
21st Jul 2025365 PMAQI
21st Jul 2025356 PMAQI
21st Jul 2025337 PMAQI
21st Jul 2025348 PMAQI
21st Jul 2025399 PMAQI
21st Jul 20253810 PMAQI
21st Jul 20253411 PMAQI
22nd Jul 20253812 AMAQI
22nd Jul 2025421 AMAQI
22nd Jul 2025272 AMAQI
22nd Jul 2025263 AMAQI
22nd Jul 2025234 AMAQI

20°C16/24°C

22nd Jul 2025225 AMAQI
22nd Jul 2025216 AMAQI
22nd Jul 2025207 AMAQI
22nd Jul 2025228 AMAQI
22nd Jul 2025239 AMAQI
22nd Jul 20252310 AMAQI
22nd Jul 20252311 AMAQI
22nd Jul 20252512 PMAQI
22nd Jul 2025241 PMAQI
22nd Jul 2025242 PMAQI
22nd Jul 2025243 PMAQI
22nd Jul 2025244 PMAQI
22nd Jul 2025265 PMAQI
22nd Jul 2025266 PMAQI
22nd Jul 2025257 PMAQI
22nd Jul 2025268 PMAQI
22nd Jul 2025249 PMAQI
22nd Jul 20252410 PMAQI
22nd Jul 20252611 PMAQI
23rd Jul 20252712 AMAQI
23rd Jul 2025301 AMAQI
23rd Jul 2025262 AMAQI
23rd Jul 2025263 AMAQI
23rd Jul 2025244 AMAQI

20°C14/25°C

23rd Jul 2025245 AMAQI
23rd Jul 2025236 AMAQI
23rd Jul 2025247 AMAQI
23rd Jul 2025248 AMAQI
23rd Jul 2025259 AMAQI
23rd Jul 20252710 AMAQI
23rd Jul 20252811 AMAQI
23rd Jul 20252812 PMAQI
23rd Jul 2025261 PMAQI
23rd Jul 2025262 PMAQI
23rd Jul 2025233 PMAQI
23rd Jul 2025274 PMAQI
23rd Jul 2025295 PMAQI
23rd Jul 2025296 PMAQI
23rd Jul 2025267 PMAQI
23rd Jul 2025268 PMAQI
23rd Jul 2025269 PMAQI
23rd Jul 20252710 PMAQI
23rd Jul 20252611 PMAQI
24th Jul 20252612 AMAQI
24th Jul 2025261 AMAQI
24th Jul 2025262 AMAQI
24th Jul 2025293 AMAQI
24th Jul 2025294 AMAQI

24°C16/32°C

24th Jul 2025295 AMAQI
24th Jul 2025286 AMAQI
24th Jul 2025287 AMAQI
24th Jul 2025308 AMAQI
24th Jul 2025329 AMAQI
24th Jul 20253310 AMAQI
24th Jul 20253511 AMAQI
24th Jul 20253812 PMAQI
24th Jul 2025421 PMAQI
24th Jul 2025452 PMAQI
24th Jul 2025423 PMAQI
24th Jul 2025394 PMAQI
24th Jul 2025445 PMAQI
24th Jul 2025446 PMAQI
24th Jul 2025447 PMAQI
24th Jul 2025438 PMAQI
24th Jul 2025379 PMAQI
24th Jul 20253710 PMAQI
24th Jul 20254411 PMAQI
25th Jul 20253812 AMAQI
25th Jul 2025341 AMAQI
25th Jul 2025312 AMAQI
25th Jul 2025303 AMAQI
25th Jul 2025304 AMAQI

27°C18/36°C

25th Jul 2025305 AMAQI
25th Jul 2025316 AMAQI
25th Jul 2025317 AMAQI
25th Jul 2025338 AMAQI
25th Jul 2025329 AMAQI
25th Jul 20253210 AMAQI
25th Jul 20253311 AMAQI
25th Jul 20253012 PMAQI
25th Jul 2025301 PMAQI
25th Jul 2025292 PMAQI
25th Jul 2025293 PMAQI
25th Jul 2025304 PMAQI
25th Jul 2025305 PMAQI
25th Jul 2025336 PMAQI
25th Jul 2025387 PMAQI
25th Jul 2025368 PMAQI
25th Jul 2025359 PMAQI
25th Jul 20253810 PMAQI
25th Jul 20254711 PMAQI
26th Jul 20254712 AMAQI
26th Jul 2025461 AMAQI
26th Jul 2025582 AMAQI
26th Jul 2025573 AMAQI
26th Jul 2025564 AMAQI

27°C23/30°C

26th Jul 2025545 AMAQI
26th Jul 2025586 AMAQI
26th Jul 2025557 AMAQI
26th Jul 2025528 AMAQI
26th Jul 2025559 AMAQI
26th Jul 20255510 AMAQI
26th Jul 20255611 AMAQI
26th Jul 20255612 PMAQI
26th Jul 2025551 PMAQI
26th Jul 2025552 PMAQI
26th Jul 2025543 PMAQI
26th Jul 2025544 PMAQI
26th Jul 2025555 PMAQI
26th Jul 2025566 PMAQI
26th Jul 2025577 PMAQI
26th Jul 2025568 PMAQI
26th Jul 2025549 PMAQI
26th Jul 20255310 PMAQI
26th Jul 20255211 PMAQI
27th Jul 20255312 AMAQI
27th Jul 2025491 AMAQI
27th Jul 2025362 AMAQI
27th Jul 2025423 AMAQI
27th Jul 2025414 AMAQI

25°C21/31°C

27th Jul 2025395 AMAQI
27th Jul 2025386 AMAQI
27th Jul 2025347 AMAQI
27th Jul 2025338 AMAQI
27th Jul 2025369 AMAQI
27th Jul 20253710 AMAQI
27th Jul 20253711 AMAQI
27th Jul 20253812 PMAQI
27th Jul 2025391 PMAQI
27th Jul 2025422 PMAQI
27th Jul 2025443 PMAQI
27th Jul 2025444 PMAQI
27th Jul 2025425 PMAQI
27th Jul 2025406 PMAQI
27th Jul 2025427 PMAQI
27th Jul 2025418 PMAQI
27th Jul 2025409 PMAQI
27th Jul 20254210 PMAQI
27th Jul 20254611 PMAQI
28th Jul 20254912 AMAQI
28th Jul 2025521 AMAQI
28th Jul 2025542 AMAQI
28th Jul 2025543 AMAQI
28th Jul 2025544 AMAQI

27°C22/34°C

28th Jul 2025545 AMAQI
28th Jul 2025546 AMAQI
28th Jul 2025537 AMAQI
28th Jul 2025548 AMAQI
28th Jul 2025549 AMAQI
28th Jul 20255110 AMAQI
28th Jul 20255511 AMAQI
28th Jul 20255412 PMAQI
28th Jul 2025531 PMAQI
28th Jul 2025522 PMAQI
28th Jul 2025523 PMAQI
28th Jul 2025544 PMAQI
28th Jul 2025545 PMAQI
28th Jul 2025546 PMAQI
28th Jul 2025537 PMAQI
28th Jul 2025548 PMAQI
28th Jul 2025539 PMAQI
28th Jul 20255310 PMAQI
28th Jul 20255111 PMAQI
29th Jul 20255212 AMAQI
29th Jul 2025511 AMAQI
29th Jul 2025472 AMAQI
29th Jul 2025493 AMAQI
29th Jul 2025494 AMAQI

27°C19/36°C

29th Jul 2025495 AMAQI
29th Jul 2025496 AMAQI
29th Jul 2025487 AMAQI
29th Jul 2025508 AMAQI
29th Jul 2025509 AMAQI
29th Jul 20254910 AMAQI
29th Jul 20255011 AMAQI
29th Jul 20254912 PMAQI
29th Jul 2025481 PMAQI
29th Jul 2025502 PMAQI
29th Jul 2025493 PMAQI
29th Jul 2025484 PMAQI
29th Jul 2025505 PMAQI
29th Jul 2025526 PMAQI
29th Jul 2025507 PMAQI
29th Jul 2025498 PMAQI
29th Jul 2025499 PMAQI
29th Jul 20255010 PMAQI
29th Jul 20254611 PMAQI
30th Jul 20254612 AMAQI
30th Jul 2025451 AMAQI
30th Jul 2025382 AMAQI
30th Jul 2025453 AMAQI
30th Jul 2025474 AMAQI

27°C21/35°C

30th Jul 2025465 AMAQI
30th Jul 2025446 AMAQI
30th Jul 2025447 AMAQI
30th Jul 2025448 AMAQI
30th Jul 2025479 AMAQI
30th Jul 20254910 AMAQI
30th Jul 20254811 AMAQI
30th Jul 20254812 PMAQI
30th Jul 2025481 PMAQI
30th Jul 2025482 PMAQI
30th Jul 2025483 PMAQI
30th Jul 2025504 PMAQI
30th Jul 2025495 PMAQI
30th Jul 2025496 PMAQI
30th Jul 2025497 PMAQI
30th Jul 2025498 PMAQI
30th Jul 2025499 PMAQI
30th Jul 20254910 PMAQI
30th Jul 20255011 PMAQI
31st Jul 20255012 AMAQI
31st Jul 2025531 AMAQI
31st Jul 2025652 AMAQI
31st Jul 2025683 AMAQI
31st Jul 2025844 AMAQI

26°C21/30°C

31st Jul 2025805 AMAQI
31st Jul 2025786 AMAQI
31st Jul 2025767 AMAQI
31st Jul 20251098 AMAQI
31st Jul 2025859 AMAQI
31st Jul 20256710 AMAQI
31st Jul 20255211 AMAQI
31st Jul 20259212 PMAQI
31st Jul 20251401 PMAQI
31st Jul 20251342 PMAQI
31st Jul 20251203 PMAQI
31st Jul 20251014 PMAQI
31st Jul 2025885 PMAQI
31st Jul 2025796 PMAQI
31st Jul 2025787 PMAQI
31st Jul 2025788 PMAQI
31st Jul 20251199 PMAQI
31st Jul 20259810 PMAQI
31st Jul 20258311 PMAQI
1st Aug 20258412 AMAQI
1st Aug 2025801 AMAQI
1st Aug 2025832 AMAQI
1st Aug 2025783 AMAQI
1st Aug 2025734 AMAQI

21°C17/24°C

1st Aug 2025745 AMAQI
1st Aug 2025766 AMAQI
1st Aug 2025697 AMAQI
1st Aug 2025688 AMAQI
1st Aug 2025659 AMAQI
1st Aug 20256210 AMAQI
1st Aug 20255811 AMAQI
1st Aug 20255212 PMAQI
1st Aug 2025461 PMAQI
1st Aug 2025402 PMAQI
1st Aug 2025363 PMAQI
1st Aug 2025304 PMAQI
1st Aug 2025295 PMAQI
1st Aug 2025246 PMAQI
1st Aug 2025267 PMAQI
1st Aug 2025248 PMAQI
1st Aug 2025549 PMAQI
1st Aug 20253710 PMAQI
1st Aug 20252311 PMAQI
2nd Aug 20252712 AMAQI
2nd Aug 2025281 AMAQI
2nd Aug 2025262 AMAQI
2nd Aug 2025273 AMAQI
2nd Aug 2025224 AMAQI

21°C15/27°C

2nd Aug 2025235 AMAQI
5 AM
2nd Aug 2025236 AMAQI
2nd Aug 2025247 AMAQI
2nd Aug 2025258 AMAQI
2nd Aug 2025279 AMAQI
2nd Aug 20252810 AMAQI
2nd Aug 20252811 AMAQI
2nd Aug 20253012 PMAQI
12 PM
2nd Aug 2025281 PMAQI
8 PM
12 AM
4 AM

--°C/°C

Day time
Avg. Highest Time
5 AM - 8 PM

44AQI

16 hours / Day
480 hours / Month
Avg. Lowest Time
5 AM - 8 PM

44AQI

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. 44), while the lowest AQI was between 5 AM to 8 PM (Avg. 44).
Night time
Avg. Highest Time
12 AM - 11 PM

43AQI

8 hours / Day
240 hours / Month
Avg. Lowest Time
12 AM - 11 PM

43AQI

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. 43), while the lowest AQI was between 12 AM to 11 PM (Avg. 43).

2025 Days Vs Air Quality

Hamilton West, Hamilton, Ontario, Canada

2025

86%

183

14%

30

Total number of days with different AQI categories in last 214 days in 2025 (151 days remaining)

Good
183 Days
Moderate
30 Days
Poor
0 Days
Unhealthy
0 Days
Severe
0 Days
Hazardous
0 Days

Under WHO’s Safe Air Quality Limits: 86%

Health Risk Level:

Low

In 2025, 86% 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

Hamilton West, Hamilton, 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 January 2025
21AQI
2nd January 2025
21AQI
3rd January 2025
23AQI
4th January 2025
27AQI
5th January 2025
25AQI
6th January 2025
23AQI
7th January 2025
21AQI
8th January 2025
25AQI
9th January 2025
24AQI
10th January 2025
49AQI
11th January 2025
67AQI
12th January 2025
52AQI
13th January 2025
40AQI
14th January 2025
28AQI
15th January 2025
28AQI
16th January 2025
54AQI
17th January 2025
45AQI
18th January 2025
27AQI
19th January 2025
24AQI
20th January 2025
25AQI
21st January 2025
24AQI
22nd January 2025
31AQI
23rd January 2025
43AQI
24th January 2025
29AQI
25th January 2025
53AQI
26th January 2025
34AQI
27th January 2025
27AQI
28th January 2025
28AQI
29th January 2025
25AQI
30th January 2025
26AQI
31st January 2025
61AQI
1st February 2025
26AQI
2nd February 2025
31AQI
3rd February 2025
60AQI
4th February 2025
24AQI
5th February 2025
28AQI
6th February 2025
38AQI
7th February 2025
27AQI
8th February 2025
47AQI
9th February 2025
33AQI
10th February 2025
29AQI
11th February 2025
51AQI
12th February 2025
28AQI
13th February 2025
31AQI
14th February 2025
30AQI
15th February 2025
37AQI
16th February 2025
29AQI
17th February 2025
26AQI
18th February 2025
26AQI
19th February 2025
23AQI
20th February 2025
20AQI
21st February 2025
25AQI
22nd February 2025
47AQI
23rd February 2025
58AQI
24th February 2025
51AQI
25th February 2025
54AQI
26th February 2025
35AQI
27th February 2025
40AQI
28th February 2025
23AQI
1st March 2025
27AQI
2nd March 2025
27AQI
3rd March 2025
31AQI
4th March 2025
37AQI
5th March 2025
52AQI
6th March 2025
25AQI
7th March 2025
30AQI
8th March 2025
33AQI
9th March 2025
29AQI
10th March 2025
31AQI
11th March 2025
31AQI
12th March 2025
27AQI
13th March 2025
34AQI
14th March 2025
62AQI
15th March 2025
61AQI
16th March 2025
30AQI
17th March 2025
16AQI
18th March 2025
24AQI
19th March 2025
44AQI
20th March 2025
28AQI
21st March 2025
17AQI
22nd March 2025
17AQI
23rd March 2025
21AQI
24th March 2025
23AQI
25th March 2025
20AQI
26th March 2025
19AQI
27th March 2025
22AQI
28th March 2025
23AQI
29th March 2025
21AQI
30th March 2025
23AQI
31st March 2025
23AQI
1st April 2025
17AQI
2nd April 2025
20AQI
3rd April 2025
30AQI
4th April 2025
21AQI
5th April 2025
23AQI
6th April 2025
17AQI
7th April 2025
20AQI
8th April 2025
15AQI
9th April 2025
20AQI
10th April 2025
30AQI
11th April 2025
38AQI
12th April 2025
37AQI
13th April 2025
34AQI
14th April 2025
34AQI
15th April 2025
19AQI
16th April 2025
15AQI
17th April 2025
19AQI
18th April 2025
40AQI
19th April 2025
44AQI
20th April 2025
19AQI
21st April 2025
22AQI
22nd April 2025
15AQI
23rd April 2025
22AQI
24th April 2025
40AQI
25th April 2025
49AQI
26th April 2025
32AQI
27th April 2025
15AQI
28th April 2025
26AQI
29th April 2025
42AQI
30th April 2025
23AQI
1st May 2025
31AQI
2nd May 2025
35AQI
3rd May 2025
19AQI
4th May 2025
17AQI
5th May 2025
19AQI
6th May 2025
29AQI
7th May 2025
31AQI
8th May 2025
21AQI
9th May 2025
27AQI
10th May 2025
25AQI
11th May 2025
22AQI
12th May 2025
34AQI
13th May 2025
40AQI
14th May 2025
41AQI
15th May 2025
39AQI
16th May 2025
39AQI
17th May 2025
29AQI
18th May 2025
18AQI
19th May 2025
18AQI
20th May 2025
17AQI
21st May 2025
17AQI
22nd May 2025
16AQI
23rd May 2025
11AQI
24th May 2025
12AQI
25th May 2025
13AQI
26th May 2025
19AQI
27th May 2025
32AQI
28th May 2025
36AQI
29th May 2025
30AQI
30th May 2025
32AQI
31st May 2025
26AQI
1st June 2025
16AQI
2nd June 2025
20AQI
3rd June 2025
33AQI
4th June 2025
60AQI
5th June 2025
52AQI
6th June 2025
63AQI
7th June 2025
63AQI
8th June 2025
77AQI
9th June 2025
63AQI
10th June 2025
48AQI
11th June 2025
55AQI
12th June 2025
65AQI
13th June 2025
44AQI
14th June 2025
29AQI
15th June 2025
38AQI
16th June 2025
40AQI
17th June 2025
45AQI
18th June 2025
39AQI
19th June 2025
30AQI
20th June 2025
36AQI
21st June 2025
45AQI
22nd June 2025
47AQI
23rd June 2025
52AQI
24th June 2025
54AQI
25th June 2025
45AQI
26th June 2025
42AQI
27th June 2025
38AQI
28th June 2025
34AQI
29th June 2025
35AQI
30th June 2025
42AQI
1st July 2025
40AQI
2nd July 2025
42AQI
3rd July 2025
48AQI
4th July 2025
38AQI
5th July 2025
46AQI
6th July 2025
50AQI
7th July 2025
48AQI
8th July 2025
36AQI
9th July 2025
39AQI
10th July 2025
39AQI
11th July 2025
51AQI
12th July 2025
46AQI
13th July 2025
41AQI
14th July 2025
48AQI
15th July 2025
56AQI
16th July 2025
64AQI
17th July 2025
41AQI
18th July 2025
22AQI
19th July 2025
28AQI
20th July 2025
25AQI
21st July 2025
40AQI
22nd July 2025
27AQI
23rd July 2025
26AQI
24th July 2025
34AQI
25th July 2025
34AQI
26th July 2025
53AQI
27th July 2025
43AQI
28th July 2025
53AQI
29th July 2025
50AQI
30th July 2025
47AQI
31st July 2025
79AQI
1st August 2025
64AQI

33AQI

35AQI

29AQI

27AQI

26AQI

45AQI

43AQI

64AQI

No. of days

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

202534AQI

26
5
23
5
28
3
30
31
20
10
25
6
1
183
30

Highest AQI recorded in

August

64AQI

Lowest AQI recorded in

May

26AQI

202433AQI

26
5
24
5
30
1
30
23
8
26
2
29
2
25
6
17
3
30
1
30
29
2
319
35

Highest AQI recorded in

January

39AQI

Lowest AQI recorded in

November

24AQI

202342AQI

25
6
24
4
26
5
25
5
28
3
11
12
4
3
22
8
1
21
10
26
4
28
3
27
2
22
9
285
71
5
3

Highest AQI recorded in

June

74AQI

Lowest AQI recorded in

October

29AQI

202235AQI

29
2
19
2
27
4
22
2
24
7
27
3
22
1
1
27
26
5
24
6
28
3
276
35

Highest AQI recorded in

May

41AQI

Lowest AQI recorded in

August

18AQI

202136AQI

23
7
24
4
24
7
23
7
26
5
27
3
24
7
24
7
26
4
31
27
3
26
5
305
59

Highest AQI recorded in

July

40AQI

Lowest AQI recorded in

October

25AQI

202036AQI

11
1
21
13
5
26
4
29
2
25
6
26
4
30
1
26
4
26
5
233
32

Highest AQI recorded in

May

42AQI

Lowest AQI recorded in

October

28AQI

Most & Least Polluted Years Over the Last 6 Years

Most Polluted Year Recorded
2023(Avg.)
42AQI
Least Polluted Year Recorded
2024(Avg.)
33AQI

Hamilton West's annual 2025 AQI (34) shows an average percentage change of -5.09% (improved AQI) compared to previous years: 2020 (36), 2021 (36), 2022 (35), 2023 (42), 2024 (33).