Country Background
HistoryAQIPM₂.₅PM₁₀COSO₂NO₂O₃

Barrie, 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+

July Air Quality Analysis

Barrie, Ontario, Canada

2025
2026
AQI
.
Days

AQI Trends: Highest and Lowest

Highest AQI recorded on
16th Jul 2026
197AQI
Lowest AQI recorded on
22nd Jul 2025
22AQI

Same Day Analysis (28th July):
On this day, AQI across the 2 years varied significantly: 2026 ranks 2nd highest AQI at 49 of Good air quality, showing improvement over 2025 on the same day.

Day & Night AQI Trend: 28th Jul - 29th Jul 2026

Barrie, Ontario, Canada

AQI
Day
Night
.

5 AM28th Jul 2026

9 PM

4 AM29th Jul 2026

Day time
Avg. Highest Time
5PM28th Jul

69AQI

Avg. Lowest Time
8PM28th Jul

40AQI

Night time
Avg. Highest Time
5AM28th Jul

54AQI

Avg. Lowest Time
4AM29th Jul

21AQI

In the last 24 hours,

Barrie's AQI reached its highest point of 69 at 5 PM during the Day, while the lowest point, 21, was recorded at 4 AM during the Night between 28th Jul and 29th Jul 2026.

Day & Night AQI Trend : Jun - Jul 2026

Barrie, Ontario, Canada

JunJul
30th - 01st01st - 02nd02nd - 03rd03rd - 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
Day
Night
30th Jun 2026625 AMAQI
30th Jun 2026566 AMAQI
30th Jun 2026387 AMAQI
30th Jun 2026668 AMAQI
30th Jun 2026699 AMAQI
30th Jun 20267810 AMAQI
30th Jun 20267411 AMAQI
30th Jun 20267512 PMAQI
30th Jun 2026681 PMAQI
30th Jun 2026532 PMAQI
30th Jun 2026443 PMAQI
30th Jun 2026484 PMAQI
30th Jun 2026515 PMAQI
30th Jun 2026506 PMAQI
30th Jun 2026527 PMAQI
30th Jun 2026628 PMAQI
30th Jun 2026589 PMAQI
30th Jun 20266410 PMAQI
30th Jun 20266211 PMAQI
1st Jul 20266612 AMAQI
1st Jul 2026681 AMAQI
1st Jul 2026782 AMAQI
1st Jul 2026823 AMAQI
1st Jul 2026744 AMAQI

27°C18/37°C

1st Jul 2026505 AMAQI
1st Jul 2026556 AMAQI
1st Jul 2026607 AMAQI
1st Jul 2026668 AMAQI
1st Jul 2026639 AMAQI
1st Jul 20265710 AMAQI
1st Jul 20264911 AMAQI
1st Jul 20264212 PMAQI
1st Jul 2026511 PMAQI
1st Jul 2026502 PMAQI
1st Jul 2026483 PMAQI
1st Jul 2026494 PMAQI
1st Jul 2026485 PMAQI
1st Jul 2026676 PMAQI
1st Jul 2026387 PMAQI
1st Jul 2026298 PMAQI
1st Jul 2026289 PMAQI
1st Jul 20265210 PMAQI
1st Jul 20269411 PMAQI
2nd Jul 20263812 AMAQI
2nd Jul 2026331 AMAQI
2nd Jul 2026362 AMAQI
2nd Jul 2026383 AMAQI
2nd Jul 2026444 AMAQI

28°C22/36°C

2nd Jul 2026465 AMAQI
2nd Jul 2026536 AMAQI
2nd Jul 20261057 AMAQI
2nd Jul 2026528 AMAQI
2nd Jul 2026429 AMAQI
2nd Jul 20264410 AMAQI
2nd Jul 20264011 AMAQI
2nd Jul 20263012 PMAQI
2nd Jul 2026381 PMAQI
2nd Jul 2026382 PMAQI
2nd Jul 2026313 PMAQI
2nd Jul 2026314 PMAQI
2nd Jul 2026335 PMAQI
2nd Jul 2026336 PMAQI
2nd Jul 2026337 PMAQI
2nd Jul 2026408 PMAQI
2nd Jul 2026349 PMAQI
2nd Jul 20263110 PMAQI
2nd Jul 20262911 PMAQI
3rd Jul 20262912 AMAQI
3rd Jul 2026321 AMAQI
3rd Jul 2026402 AMAQI
3rd Jul 2026543 AMAQI
3rd Jul 20261054 AMAQI

26°C21/34°C

3rd Jul 2026745 AMAQI
3rd Jul 2026406 AMAQI
3rd Jul 2026427 AMAQI
3rd Jul 2026448 AMAQI
3rd Jul 2026389 AMAQI
3rd Jul 20263010 AMAQI
3rd Jul 20263211 AMAQI
3rd Jul 20263712 PMAQI
3rd Jul 2026381 PMAQI
3rd Jul 2026382 PMAQI
3rd Jul 2026383 PMAQI
3rd Jul 2026404 PMAQI
3rd Jul 2026385 PMAQI
3rd Jul 2026366 PMAQI
3rd Jul 2026447 PMAQI
3rd Jul 2026368 PMAQI
3rd Jul 2026289 PMAQI
3rd Jul 20263610 PMAQI
3rd Jul 20263311 PMAQI
4th Jul 20264212 AMAQI
4th Jul 2026421 AMAQI
4th Jul 2026422 AMAQI
4th Jul 2026513 AMAQI
4th Jul 2026514 AMAQI

26°C20/32°C

4th Jul 2026535 AMAQI
4th Jul 2026526 AMAQI
4th Jul 2026627 AMAQI
4th Jul 2026678 AMAQI
4th Jul 2026549 AMAQI
4th Jul 20265610 AMAQI
4th Jul 20264611 AMAQI
4th Jul 20264412 PMAQI
4th Jul 2026481 PMAQI
4th Jul 2026482 PMAQI
4th Jul 2026443 PMAQI
4th Jul 2026424 PMAQI
4th Jul 20261005 PMAQI
4th Jul 2026446 PMAQI
4th Jul 2026577 PMAQI
4th Jul 2026608 PMAQI
4th Jul 2026559 PMAQI
4th Jul 20266210 PMAQI
4th Jul 20268611 PMAQI
5th Jul 20266812 AMAQI
5th Jul 2026731 AMAQI
5th Jul 2026712 AMAQI
5th Jul 2026683 AMAQI
5th Jul 2026724 AMAQI

23°C20/28°C

5th Jul 2026655 AMAQI
5th Jul 2026706 AMAQI
5th Jul 2026627 AMAQI
5th Jul 2026538 AMAQI
5th Jul 2026599 AMAQI
5th Jul 20264910 AMAQI
5th Jul 20265411 AMAQI
5th Jul 20265512 PMAQI
5th Jul 2026571 PMAQI
5th Jul 2026622 PMAQI
5th Jul 2026563 PMAQI
5th Jul 2026544 PMAQI
5th Jul 2026545 PMAQI
5th Jul 2026526 PMAQI
5th Jul 2026487 PMAQI
5th Jul 2026538 PMAQI
5th Jul 2026449 PMAQI
5th Jul 20265410 PMAQI
5th Jul 20266211 PMAQI
6th Jul 20265812 AMAQI
6th Jul 2026591 AMAQI
6th Jul 2026532 AMAQI
6th Jul 2026403 AMAQI
6th Jul 2026384 AMAQI

23°C19/30°C

6th Jul 2026345 AMAQI
6th Jul 2026306 AMAQI
6th Jul 2026287 AMAQI
6th Jul 2026308 AMAQI
6th Jul 2026299 AMAQI
6th Jul 20263210 AMAQI
6th Jul 20264011 AMAQI
6th Jul 20263812 PMAQI
6th Jul 2026441 PMAQI
6th Jul 2026502 PMAQI
6th Jul 2026533 PMAQI
6th Jul 2026514 PMAQI
6th Jul 2026525 PMAQI
6th Jul 2026546 PMAQI
6th Jul 2026567 PMAQI
6th Jul 2026548 PMAQI
6th Jul 2026529 PMAQI
6th Jul 20264210 PMAQI
6th Jul 20264611 PMAQI
7th Jul 20265712 AMAQI
7th Jul 2026521 AMAQI
7th Jul 2026562 AMAQI
7th Jul 2026543 AMAQI
7th Jul 2026534 AMAQI

23°C16/29°C

7th Jul 2026515 AMAQI
7th Jul 2026516 AMAQI
7th Jul 2026567 AMAQI
7th Jul 2026478 AMAQI
7th Jul 2026339 AMAQI
7th Jul 20262810 AMAQI
7th Jul 20263311 AMAQI
7th Jul 20263212 PMAQI
7th Jul 2026311 PMAQI
7th Jul 2026322 PMAQI
7th Jul 2026303 PMAQI
7th Jul 2026324 PMAQI
7th Jul 2026315 PMAQI
7th Jul 2026306 PMAQI
7th Jul 2026317 PMAQI
7th Jul 2026278 PMAQI
7th Jul 2026449 PMAQI
7th Jul 20262610 PMAQI
7th Jul 20262811 PMAQI
8th Jul 20262612 AMAQI
8th Jul 2026261 AMAQI
8th Jul 2026282 AMAQI
8th Jul 2026303 AMAQI
8th Jul 2026264 AMAQI

25°C19/32°C

8th Jul 2026275 AMAQI
8th Jul 2026206 AMAQI
8th Jul 2026227 AMAQI
8th Jul 2026248 AMAQI
8th Jul 2026249 AMAQI
8th Jul 20262910 AMAQI
8th Jul 20263111 AMAQI
8th Jul 20263012 PMAQI
8th Jul 2026301 PMAQI
8th Jul 2026382 PMAQI
8th Jul 2026313 PMAQI
8th Jul 2026364 PMAQI
8th Jul 2026335 PMAQI
8th Jul 2026326 PMAQI
8th Jul 2026337 PMAQI
8th Jul 2026448 PMAQI
8th Jul 2026369 PMAQI
8th Jul 20265510 PMAQI
8th Jul 20265211 PMAQI
9th Jul 20264412 AMAQI
9th Jul 2026461 AMAQI
9th Jul 2026582 AMAQI
9th Jul 2026523 AMAQI
9th Jul 2026604 AMAQI

25°C18/32°C

9th Jul 2026575 AMAQI
9th Jul 2026626 AMAQI
9th Jul 2026687 AMAQI
9th Jul 2026908 AMAQI
9th Jul 2026739 AMAQI
9th Jul 20265310 AMAQI
9th Jul 20265111 AMAQI
9th Jul 20263812 PMAQI
9th Jul 2026441 PMAQI
9th Jul 2026572 PMAQI
9th Jul 2026423 PMAQI
9th Jul 2026504 PMAQI
9th Jul 2026345 PMAQI
9th Jul 2026346 PMAQI
9th Jul 2026367 PMAQI
9th Jul 2026308 PMAQI
9th Jul 20262749 PMAQI
9th Jul 20264010 PMAQI
9th Jul 20263411 PMAQI
10th Jul 20262612 AMAQI
10th Jul 20261001 AMAQI
10th Jul 2026252 AMAQI
10th Jul 2026263 AMAQI
10th Jul 2026324 AMAQI

22°C19/27°C

10th Jul 2026425 AMAQI
10th Jul 20261026 AMAQI
10th Jul 2026347 AMAQI
10th Jul 2026328 AMAQI
10th Jul 2026359 AMAQI
10th Jul 20264310 AMAQI
10th Jul 20264211 AMAQI
10th Jul 20264212 PMAQI
10th Jul 2026461 PMAQI
10th Jul 2026492 PMAQI
10th Jul 2026483 PMAQI
10th Jul 2026444 PMAQI
10th Jul 2026475 PMAQI
10th Jul 2026446 PMAQI
10th Jul 2026507 PMAQI
10th Jul 2026518 PMAQI
10th Jul 2026549 PMAQI
10th Jul 20266010 PMAQI
10th Jul 20266411 PMAQI
11th Jul 202612212 AMAQI
11th Jul 20261011 AMAQI
11th Jul 2026792 AMAQI
11th Jul 2026663 AMAQI
11th Jul 2026684 AMAQI

22°C18/29°C

11th Jul 2026635 AMAQI
11th Jul 2026686 AMAQI
11th Jul 2026737 AMAQI
11th Jul 2026808 AMAQI
11th Jul 2026809 AMAQI
11th Jul 20267210 AMAQI
11th Jul 20267111 AMAQI
11th Jul 20266212 PMAQI
11th Jul 2026621 PMAQI
11th Jul 2026532 PMAQI
11th Jul 2026593 PMAQI
11th Jul 2026644 PMAQI
11th Jul 2026665 PMAQI
11th Jul 2026666 PMAQI
11th Jul 2026647 PMAQI
11th Jul 2026628 PMAQI
11th Jul 2026759 PMAQI
11th Jul 20267210 PMAQI
11th Jul 20267411 PMAQI
12th Jul 20267312 AMAQI
12th Jul 2026741 AMAQI
12th Jul 2026812 AMAQI
12th Jul 2026883 AMAQI
12th Jul 2026904 AMAQI

22°C16/28°C

12th Jul 20261005 AMAQI
12th Jul 2026966 AMAQI
12th Jul 20261067 AMAQI
12th Jul 2026928 AMAQI
12th Jul 2026849 AMAQI
12th Jul 20265510 AMAQI
12th Jul 20265711 AMAQI
12th Jul 20268012 PMAQI
12th Jul 2026651 PMAQI
12th Jul 2026572 PMAQI
12th Jul 2026563 PMAQI
12th Jul 2026554 PMAQI
12th Jul 2026535 PMAQI
12th Jul 2026486 PMAQI
12th Jul 2026557 PMAQI
12th Jul 20261028 PMAQI
12th Jul 20261009 PMAQI
12th Jul 20269610 PMAQI
12th Jul 20269211 PMAQI
13th Jul 20269712 AMAQI
13th Jul 20261081 AMAQI
13th Jul 20261002 AMAQI
13th Jul 2026993 AMAQI
13th Jul 2026984 AMAQI

23°C15/32°C

13th Jul 20261025 AMAQI
13th Jul 20261036 AMAQI
13th Jul 2026967 AMAQI
13th Jul 2026868 AMAQI
13th Jul 2026909 AMAQI
13th Jul 20267810 AMAQI
13th Jul 20266211 AMAQI
13th Jul 20266712 PMAQI
13th Jul 2026621 PMAQI
13th Jul 2026712 PMAQI
13th Jul 2026653 PMAQI
13th Jul 2026624 PMAQI
13th Jul 2026585 PMAQI
13th Jul 2026526 PMAQI
13th Jul 2026477 PMAQI
13th Jul 2026468 PMAQI
13th Jul 2026509 PMAQI
13th Jul 20265510 PMAQI
13th Jul 20265811 PMAQI
14th Jul 20265812 AMAQI
14th Jul 2026621 AMAQI
14th Jul 2026662 AMAQI
14th Jul 2026683 AMAQI
14th Jul 2026684 AMAQI

25°C16/35°C

14th Jul 2026715 AMAQI
14th Jul 2026756 AMAQI
14th Jul 2026747 AMAQI
14th Jul 2026728 AMAQI
14th Jul 2026669 AMAQI
14th Jul 20265910 AMAQI
14th Jul 20265611 AMAQI
14th Jul 20265612 PMAQI
14th Jul 2026501 PMAQI
14th Jul 2026462 PMAQI
14th Jul 2026443 PMAQI
14th Jul 2026784 PMAQI
14th Jul 20261325 PMAQI
14th Jul 20261766 PMAQI
14th Jul 2026987 PMAQI
14th Jul 2026628 PMAQI
14th Jul 2026559 PMAQI
14th Jul 20265310 PMAQI
14th Jul 20265711 PMAQI
15th Jul 20268012 AMAQI
15th Jul 2026881 AMAQI
15th Jul 2026912 AMAQI
15th Jul 2026903 AMAQI
15th Jul 20261574 AMAQI

29°C22/37°C

15th Jul 20261545 AMAQI
15th Jul 20261746 AMAQI
15th Jul 20261807 AMAQI
15th Jul 20261948 AMAQI
15th Jul 20261729 AMAQI
15th Jul 202617810 AMAQI
15th Jul 202617211 AMAQI
15th Jul 202616812 PMAQI
15th Jul 20261601 PMAQI
15th Jul 20261642 PMAQI
15th Jul 20261623 PMAQI
15th Jul 20261584 PMAQI
15th Jul 20261625 PMAQI
15th Jul 20261606 PMAQI
15th Jul 20261587 PMAQI
15th Jul 20261638 PMAQI
15th Jul 20261649 PMAQI
15th Jul 202615910 PMAQI
15th Jul 202616011 PMAQI
16th Jul 202617412 AMAQI
16th Jul 20261901 AMAQI
16th Jul 20262322 AMAQI
16th Jul 20262633 AMAQI
16th Jul 20262394 AMAQI

24°C20/30°C

16th Jul 20262675 AMAQI
16th Jul 20263166 AMAQI
16th Jul 20263417 AMAQI
16th Jul 20262928 AMAQI
16th Jul 20262669 AMAQI
16th Jul 202620410 AMAQI
16th Jul 202619011 AMAQI
16th Jul 202616612 PMAQI
16th Jul 20261621 PMAQI
16th Jul 20261662 PMAQI
16th Jul 20261663 PMAQI
16th Jul 20261724 PMAQI
16th Jul 20261605 PMAQI
16th Jul 20261416 PMAQI
16th Jul 20261167 PMAQI
16th Jul 2026988 PMAQI
16th Jul 20261289 PMAQI
16th Jul 202612210 PMAQI
16th Jul 202615811 PMAQI
17th Jul 202616812 AMAQI
17th Jul 20261721 AMAQI
17th Jul 20262022 AMAQI
17th Jul 20261813 AMAQI
17th Jul 20261984 AMAQI

22°C18/30°C

17th Jul 20262065 AMAQI
17th Jul 20261926 AMAQI
17th Jul 20261847 AMAQI
17th Jul 20261708 AMAQI
17th Jul 20261609 AMAQI
17th Jul 202610210 AMAQI
17th Jul 20266711 AMAQI
17th Jul 20264212 PMAQI
17th Jul 2026901 PMAQI
17th Jul 2026922 PMAQI
17th Jul 2026763 PMAQI
17th Jul 20261004 PMAQI
17th Jul 20261005 PMAQI
17th Jul 20261146 PMAQI
17th Jul 20261427 PMAQI
17th Jul 20261528 PMAQI
17th Jul 20261569 PMAQI
17th Jul 202614410 PMAQI
17th Jul 202614811 PMAQI
18th Jul 202615312 AMAQI
18th Jul 20261541 AMAQI
18th Jul 20261562 AMAQI
18th Jul 20261603 AMAQI
18th Jul 20261614 AMAQI

23°C16/32°C

18th Jul 20261645 AMAQI
18th Jul 20261656 AMAQI
18th Jul 20261707 AMAQI
18th Jul 20261738 AMAQI
18th Jul 20261609 AMAQI
18th Jul 20266510 AMAQI
18th Jul 20264011 AMAQI
18th Jul 20266512 PMAQI
18th Jul 2026631 PMAQI
18th Jul 2026482 PMAQI
18th Jul 2026513 PMAQI
18th Jul 2026714 PMAQI
18th Jul 2026885 PMAQI
18th Jul 20261536 PMAQI
18th Jul 20261527 PMAQI
18th Jul 2026928 PMAQI
18th Jul 2026669 PMAQI
18th Jul 20268010 PMAQI
18th Jul 20266911 PMAQI
19th Jul 20266712 AMAQI
19th Jul 2026591 AMAQI
19th Jul 2026602 AMAQI
19th Jul 2026703 AMAQI
19th Jul 2026744 AMAQI

22°C17/27°C

19th Jul 2026905 AMAQI
19th Jul 2026906 AMAQI
19th Jul 2026527 AMAQI
19th Jul 2026608 AMAQI
19th Jul 2026569 AMAQI
19th Jul 20265110 AMAQI
19th Jul 20263311 AMAQI
19th Jul 20263212 PMAQI
19th Jul 2026271 PMAQI
19th Jul 2026252 PMAQI
19th Jul 2026263 PMAQI
19th Jul 2026304 PMAQI
19th Jul 2026265 PMAQI
19th Jul 2026386 PMAQI
19th Jul 2026257 PMAQI
19th Jul 2026268 PMAQI
19th Jul 2026289 PMAQI
19th Jul 20263810 PMAQI
19th Jul 20265411 PMAQI
20th Jul 20263812 AMAQI
20th Jul 2026381 AMAQI
20th Jul 2026302 AMAQI
20th Jul 2026343 AMAQI
20th Jul 2026254 AMAQI

18°C13/25°C

20th Jul 2026345 AMAQI
20th Jul 2026276 AMAQI
20th Jul 2026607 AMAQI
20th Jul 2026368 AMAQI
20th Jul 2026369 AMAQI
20th Jul 20262710 AMAQI
20th Jul 20262711 AMAQI
20th Jul 20262912 PMAQI
20th Jul 2026271 PMAQI
20th Jul 2026272 PMAQI
20th Jul 2026253 PMAQI
20th Jul 2026404 PMAQI
20th Jul 2026535 PMAQI
20th Jul 2026556 PMAQI
20th Jul 2026597 PMAQI
20th Jul 2026698 PMAQI
20th Jul 2026699 PMAQI
20th Jul 20267810 PMAQI
21st Jul 20269412 AMAQI
21st Jul 20261111 AMAQI
21st Jul 20261092 AMAQI
21st Jul 20261103 AMAQI
21st Jul 20261034 AMAQI

20°C11/29°C

21st Jul 2026985 AMAQI
21st Jul 2026736 AMAQI
21st Jul 2026957 AMAQI
21st Jul 2026928 AMAQI
21st Jul 2026849 AMAQI
21st Jul 20268310 AMAQI
21st Jul 20268011 AMAQI
21st Jul 20267112 PMAQI
21st Jul 2026721 PMAQI
21st Jul 2026732 PMAQI
21st Jul 2026513 PMAQI
21st Jul 2026484 PMAQI
21st Jul 2026505 PMAQI
21st Jul 2026536 PMAQI
21st Jul 2026447 PMAQI
21st Jul 2026428 PMAQI
21st Jul 2026389 PMAQI
21st Jul 20263110 PMAQI
21st Jul 20262911 PMAQI
22nd Jul 20262112 AMAQI
22nd Jul 2026211 AMAQI
22nd Jul 2026502 AMAQI
22nd Jul 2026463 AMAQI
22nd Jul 2026344 AMAQI

22°C17/30°C

22nd Jul 2026425 AMAQI
22nd Jul 2026426 AMAQI
22nd Jul 2026267 AMAQI
22nd Jul 2026248 AMAQI
22nd Jul 2026269 AMAQI
22nd Jul 20262810 AMAQI
22nd Jul 20262611 AMAQI
22nd Jul 20262312 PMAQI
22nd Jul 2026241 PMAQI
22nd Jul 2026212 PMAQI
22nd Jul 2026213 PMAQI
22nd Jul 2026224 PMAQI
22nd Jul 2026225 PMAQI
22nd Jul 2026226 PMAQI
22nd Jul 2026357 PMAQI
22nd Jul 2026248 PMAQI
22nd Jul 2026279 PMAQI
22nd Jul 20262510 PMAQI
22nd Jul 20266311 PMAQI
23rd Jul 20265012 AMAQI
23rd Jul 2026331 AMAQI
23rd Jul 2026362 AMAQI
23rd Jul 2026423 AMAQI
23rd Jul 2026324 AMAQI

17°C13/23°C

23rd Jul 2026315 AMAQI
23rd Jul 2026366 AMAQI
23rd Jul 2026467 AMAQI
23rd Jul 2026368 AMAQI
23rd Jul 2026279 AMAQI
23rd Jul 20262410 AMAQI
23rd Jul 20262711 AMAQI
23rd Jul 20262612 PMAQI
23rd Jul 2026271 PMAQI
23rd Jul 2026252 PMAQI
23rd Jul 2026253 PMAQI
23rd Jul 2026264 PMAQI
23rd Jul 2026245 PMAQI
23rd Jul 2026386 PMAQI
23rd Jul 2026237 PMAQI
23rd Jul 2026268 PMAQI
23rd Jul 2026279 PMAQI
23rd Jul 20264610 PMAQI
23rd Jul 20264011 PMAQI
24th Jul 20263412 AMAQI
24th Jul 2026621 AMAQI
24th Jul 2026332 AMAQI
24th Jul 2026333 AMAQI
24th Jul 2026404 AMAQI

18°C12/24°C

24th Jul 2026315 AMAQI
24th Jul 2026466 AMAQI
24th Jul 2026447 AMAQI
24th Jul 2026448 AMAQI
24th Jul 2026559 AMAQI
24th Jul 20265010 AMAQI
24th Jul 20262511 AMAQI
24th Jul 20263812 PMAQI
24th Jul 2026271 PMAQI
24th Jul 2026292 PMAQI
24th Jul 2026253 PMAQI
24th Jul 2026264 PMAQI
24th Jul 2026305 PMAQI
24th Jul 2026386 PMAQI
24th Jul 2026297 PMAQI
24th Jul 2026258 PMAQI
24th Jul 2026329 PMAQI
24th Jul 20262910 PMAQI
24th Jul 20263111 PMAQI
25th Jul 20264412 AMAQI
25th Jul 2026401 AMAQI
25th Jul 2026382 AMAQI
25th Jul 2026383 AMAQI
25th Jul 2026524 AMAQI

21°C12/29°C

25th Jul 2026515 AMAQI
25th Jul 2026336 AMAQI
25th Jul 2026467 AMAQI
25th Jul 2026428 AMAQI
25th Jul 2026389 AMAQI
25th Jul 20263310 AMAQI
25th Jul 20264011 AMAQI
25th Jul 20263112 PMAQI
25th Jul 2026341 PMAQI
25th Jul 2026362 PMAQI
25th Jul 2026343 PMAQI
25th Jul 2026364 PMAQI
25th Jul 2026405 PMAQI
25th Jul 2026586 PMAQI
25th Jul 2026527 PMAQI
25th Jul 2026468 PMAQI
25th Jul 2026499 PMAQI
25th Jul 20264010 PMAQI
25th Jul 20263211 PMAQI
26th Jul 20263312 AMAQI
26th Jul 2026381 AMAQI
26th Jul 2026482 AMAQI
26th Jul 2026523 AMAQI
26th Jul 2026704 AMAQI

21°C13/28°C

26th Jul 2026545 AMAQI
26th Jul 2026506 AMAQI
26th Jul 2026547 AMAQI
26th Jul 2026468 AMAQI
26th Jul 2026409 AMAQI
26th Jul 20264010 AMAQI
26th Jul 20263611 AMAQI
26th Jul 20264212 PMAQI
26th Jul 2026461 PMAQI
26th Jul 2026502 PMAQI
26th Jul 2026503 PMAQI
26th Jul 2026534 PMAQI
26th Jul 2026495 PMAQI
26th Jul 2026496 PMAQI
26th Jul 2026527 PMAQI
26th Jul 2026448 PMAQI
26th Jul 2026509 PMAQI
26th Jul 20264210 PMAQI
26th Jul 20265711 PMAQI
27th Jul 20264612 AMAQI
27th Jul 2026561 AMAQI
27th Jul 2026622 AMAQI
27th Jul 2026603 AMAQI
27th Jul 2026554 AMAQI

22°C16/29°C

27th Jul 2026465 AMAQI
27th Jul 2026556 AMAQI
27th Jul 2026587 AMAQI
27th Jul 2026558 AMAQI
27th Jul 2026549 AMAQI
27th Jul 20264210 AMAQI
27th Jul 20264611 AMAQI
27th Jul 20264612 PMAQI
27th Jul 2026461 PMAQI
27th Jul 2026422 PMAQI
27th Jul 2026483 PMAQI
27th Jul 2026494 PMAQI
27th Jul 2026545 PMAQI
27th Jul 2026556 PMAQI
27th Jul 2026587 PMAQI
27th Jul 2026608 PMAQI
27th Jul 2026599 PMAQI
27th Jul 20266210 PMAQI
27th Jul 20265711 PMAQI
28th Jul 20265712 AMAQI
28th Jul 2026571 AMAQI
28th Jul 2026552 AMAQI
28th Jul 2026483 AMAQI
28th Jul 2026514 AMAQI

22°C16/32°C

28th Jul 2026545 AMAQI
28th Jul 2026576 AMAQI
28th Jul 2026487 AMAQI
28th Jul 2026488 AMAQI
28th Jul 2026499 AMAQI
28th Jul 20264810 AMAQI
28th Jul 20265011 AMAQI
28th Jul 20264812 PMAQI
28th Jul 2026441 PMAQI
28th Jul 2026402 PMAQI
28th Jul 2026463 PMAQI
28th Jul 2026514 PMAQI
28th Jul 2026695 PMAQI
28th Jul 2026546 PMAQI
28th Jul 2026467 PMAQI
28th Jul 2026408 PMAQI
28th Jul 2026339 PMAQI
28th Jul 20264610 PMAQI
28th Jul 20263611 PMAQI
29th Jul 20264612 AMAQI
29th Jul 2026321 AMAQI
29th Jul 2026232 AMAQI
29th Jul 2026213 AMAQI
29th Jul 2026214 AMAQI

21°C18/23°C

29th Jul 2026275 AMAQI
5 AM
29th Jul 2026256 AMAQI
29th Jul 2026317 AMAQI
29th Jul 2026258 AMAQI
29th Jul 2026429 AMAQI
29th Jul 20263210 AMAQI
29th Jul 20262311 AMAQI
29th Jul 20262312 PMAQI
29th Jul 2026211 PMAQI
1 PM
29th Jul 2026212 PMAQI
29th Jul 2026213 PMAQI
29th Jul 2026204 PMAQI
29th Jul 2026225 PMAQI
29th Jul 2026256 PMAQI
29th Jul 2026547 PMAQI
29th Jul 2026228 PMAQI
29th Jul 2026219 PMAQI
9 PM
29th Jul 20262210 PMAQI
29th Jul 20265111 PMAQI
1 AM
4 AM

20°C15/26°C

Day time
Avg. Highest Time
5 AM - 7 AM

77AQI

3 hours / Day
90 hours / Month
Avg. Lowest Time
3 PM

51AQI

1 hours / Day
30 hours / Month
In the last 30 days, during the daytime, the highest AQI was between 5 AM to 7 AM (Avg. 77), while the lowest AQI was between 3 PM to 3 PM (Avg. 51).
Night time
Avg. Highest Time
4 AM

75AQI

1 hours / Day
30 hours / Month
Avg. Lowest Time
10 PM

59AQI

1 hours / Day
30 hours / Month
In the last 30 days, during the daytime, the highest AQI was between 4 AM to 4 AM (Avg. 75), while the lowest AQI was between 10 PM to 10 PM (Avg. 59).

2026 Days Vs Air Quality

Barrie, Ontario, Canada

2026

83%

170

16%

32

0.9%

2

0.9%

2

Total number of days with different AQI categories in last 210 days in 2026 (155 days remaining)

Good
170 Days
Moderate
32 Days
Poor
2 Days
Unhealthy
2 Days
Severe
0 Days
Hazardous
0 Days

Under WHO’s Safe Air Quality Limits: 83%

Health Risk Level:

Low

In 2026, 83% of 210 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

Barrie, 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
9AQI (US)
2nd January 2026
9AQI (US)
3rd January 2026
10AQI (US)
4th January 2026
39AQI (US)
5th January 2026
47AQI (US)
6th January 2026
75AQI (US)
7th January 2026
65AQI (US)
8th January 2026
63AQI (US)
9th January 2026
35AQI (US)
10th January 2026
15AQI (US)
11th January 2026
18AQI (US)
12th January 2026
31AQI (US)
13th January 2026
44AQI (US)
14th January 2026
36AQI (US)
15th January 2026
11AQI (US)
16th January 2026
26AQI (US)
17th January 2026
45AQI (US)
18th January 2026
30AQI (US)
19th January 2026
37AQI (US)
20th January 2026
17AQI (US)
21st January 2026
36AQI (US)
22nd January 2026
59AQI (US)
23rd January 2026
61AQI (US)
24th January 2026
47AQI (US)
25th January 2026
50AQI (US)
26th January 2026
48AQI (US)
27th January 2026
39AQI (US)
28th January 2026
43AQI (US)
29th January 2026
49AQI (US)
30th January 2026
58AQI (US)
31st January 2026
46AQI (US)
1st February 2026
48AQI (US)
2nd February 2026
52AQI (US)
3rd February 2026
49AQI (US)
4th February 2026
45AQI (US)
5th February 2026
53AQI (US)
6th February 2026
51AQI (US)
7th February 2026
40AQI (US)
8th February 2026
44AQI (US)
9th February 2026
49AQI (US)
10th February 2026
46AQI (US)
11th February 2026
40AQI (US)
12th February 2026
40AQI (US)
13th February 2026
48AQI (US)
14th February 2026
50AQI (US)
15th February 2026
43AQI (US)
16th February 2026
48AQI (US)
17th February 2026
51AQI (US)
18th February 2026
44AQI (US)
19th February 2026
42AQI (US)
20th February 2026
40AQI (US)
21st February 2026
36AQI (US)
22nd February 2026
36AQI (US)
23rd February 2026
39AQI (US)
24th February 2026
47AQI (US)
25th February 2026
47AQI (US)
26th February 2026
37AQI (US)
27th February 2026
40AQI (US)
28th February 2026
40AQI (US)
1st March 2026
40AQI (US)
2nd March 2026
61AQI (US)
3rd March 2026
47AQI (US)
4th March 2026
49AQI (US)
5th March 2026
43AQI (US)
6th March 2026
36AQI (US)
7th March 2026
45AQI (US)
8th March 2026
43AQI (US)
9th March 2026
40AQI (US)
10th March 2026
38AQI (US)
11th March 2026
46AQI (US)
12th March 2026
41AQI (US)
13th March 2026
44AQI (US)
14th March 2026
36AQI (US)
15th March 2026
32AQI (US)
16th March 2026
38AQI (US)
17th March 2026
34AQI (US)
18th March 2026
33AQI (US)
19th March 2026
39AQI (US)
20th March 2026
45AQI (US)
21st March 2026
41AQI (US)
22nd March 2026
38AQI (US)
23rd March 2026
41AQI (US)
24th March 2026
37AQI (US)
25th March 2026
38AQI (US)
26th March 2026
37AQI (US)
27th March 2026
29AQI (US)
28th March 2026
30AQI (US)
29th March 2026
30AQI (US)
30th March 2026
37AQI (US)
31st March 2026
59AQI (US)
1st April 2026
34AQI (US)
2nd April 2026
31AQI (US)
3rd April 2026
46AQI (US)
4th April 2026
29AQI (US)
5th April 2026
33AQI (US)
6th April 2026
29AQI (US)
7th April 2026
28AQI (US)
8th April 2026
31AQI (US)
9th April 2026
43AQI (US)
10th April 2026
31AQI (US)
11th April 2026
33AQI (US)
12th April 2026
37AQI (US)
13th April 2026
48AQI (US)
14th April 2026
49AQI (US)
15th April 2026
55AQI (US)
16th April 2026
51AQI (US)
17th April 2026
18th April 2026
30AQI (US)
19th April 2026
42AQI (US)
20th April 2026
28AQI (US)
21st April 2026
31AQI (US)
22nd April 2026
23rd April 2026
43AQI (US)
24th April 2026
27AQI (US)
25th April 2026
30AQI (US)
26th April 2026
35AQI (US)
27th April 2026
31AQI (US)
28th April 2026
35AQI (US)
29th April 2026
26AQI (US)
30th April 2026
28AQI (US)
1st May 2026
27AQI (US)
2nd May 2026
24AQI (US)
3rd May 2026
32AQI (US)
4th May 2026
34AQI (US)
5th May 2026
36AQI (US)
6th May 2026
33AQI (US)
7th May 2026
28AQI (US)
8th May 2026
31AQI (US)
9th May 2026
10th May 2026
32AQI (US)
11th May 2026
28AQI (US)
12th May 2026
29AQI (US)
13th May 2026
46AQI (US)
14th May 2026
28AQI (US)
15th May 2026
43AQI (US)
16th May 2026
49AQI (US)
17th May 2026
79AQI (US)
18th May 2026
61AQI (US)
19th May 2026
46AQI (US)
20th May 2026
51AQI (US)
21st May 2026
45AQI (US)
22nd May 2026
44AQI (US)
23rd May 2026
50AQI (US)
24th May 2026
44AQI (US)
25th May 2026
47AQI (US)
26th May 2026
38AQI (US)
27th May 2026
32AQI (US)
28th May 2026
28AQI (US)
29th May 2026
26AQI (US)
30th May 2026
28AQI (US)
31st May 2026
34AQI (US)
1st June 2026
31AQI (US)
2nd June 2026
36AQI (US)
3rd June 2026
32AQI (US)
4th June 2026
29AQI (US)
5th June 2026
40AQI (US)
6th June 2026
56AQI (US)
7th June 2026
34AQI (US)
8th June 2026
29AQI (US)
9th June 2026
55AQI (US)
10th June 2026
55AQI (US)
11th June 2026
41AQI (US)
12th June 2026
36AQI (US)
13th June 2026
34AQI (US)
14th June 2026
27AQI (US)
15th June 2026
29AQI (US)
16th June 2026
27AQI (US)
17th June 2026
29AQI (US)
18th June 2026
31AQI (US)
19th June 2026
31AQI (US)
20th June 2026
25AQI (US)
21st June 2026
24AQI (US)
22nd June 2026
34AQI (US)
23rd June 2026
27AQI (US)
24th June 2026
26AQI (US)
25th June 2026
34AQI (US)
26th June 2026
50AQI (US)
27th June 2026
59AQI (US)
28th June 2026
45AQI (US)
29th June 2026
47AQI (US)
30th June 2026
58AQI (US)
1st July 2026
57AQI (US)
2nd July 2026
40AQI (US)
3rd July 2026
42AQI (US)
4th July 2026
54AQI (US)
5th July 2026
59AQI (US)
6th July 2026
44AQI (US)
7th July 2026
39AQI (US)
8th July 2026
32AQI (US)
9th July 2026
59AQI (US)
10th July 2026
47AQI (US)
11th July 2026
72AQI (US)
12th July 2026
77AQI (US)
13th July 2026
76AQI (US)
14th July 2026
71AQI (US)
15th July 2026
153AQI (US)
16th July 2026
197AQI (US)
17th July 2026
140AQI (US)
18th July 2026
113AQI (US)
19th July 2026
47AQI (US)
20th July 2026
41AQI (US)
21st July 2026
72AQI (US)
22nd July 2026
30AQI (US)
23rd July 2026
32AQI (US)
24th July 2026
36AQI (US)
25th July 2026
41AQI (US)
26th July 2026
48AQI (US)
27th July 2026
53AQI (US)
28th July 2026
49AQI (US)
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

39AQI (US)

44AQI (US)

40AQI (US)

36AQI (US)

38AQI (US)

37AQI (US)

65AQI (US)

No. of days

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

202643AQI (US)

25
6
24
4
29
2
26
2
27
3
25
5
14
10
2
2
170
32
2
2

Highest AQI (US) recorded in

July

65AQI (US)

Lowest AQI (US) recorded in

April

36AQI (US)

202536AQI (US)

5
30
31
17
13
22
9
18
11
2
30
25
6
27
3
23
8
228
50
2

Highest AQI (US) recorded in

August

48AQI (US)

Lowest AQI (US) recorded in

March

20AQI (US)

Most & Least Polluted Years Over the Last 2 Years

Most Polluted Year Recorded
2026(Avg.)
43AQI (US)
Least Polluted Year Recorded
2025(Avg.)
36AQI (US)

Barrie's annual 2026 AQI (US) (43) shows an average percentage change of 19.4% (worsened AQI (US)) compared to previous years: 2025 (36).