Country Background

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+

August Air Quality Analysis

Barrie, Ontario, Canada

2025
AQI
.
Days

AQI Trends: Highest and Lowest

Highest AQI recorded on
4th Aug 2025
128AQI
Lowest AQI recorded on
18th Aug 2025
15AQI


Same Day Analysis (30th August ):
On this day, AQI across the 1 years varied significantly: 2025 ranks 1st highest AQI at 21 of Good air quality on the same day.

Download 2024 Annual Data

World Air Quality Report

Globe

Day & Night AQI Trend: 30th Aug - 31st Aug 2025

Barrie, Ontario, Canada

AQI
Day
Night
.

6 AM30th Aug 2025

8 PM

5 AM31st Aug 2025

Day time
Avg. Highest Time
6AM30th Aug

23AQI

Avg. Lowest Time
3PM30th Aug

16AQI

Night time
Avg. Highest Time
4AM31st Aug

33AQI

Avg. Lowest Time
8PM30th Aug

17AQI

In the last 24 hours,

Barrie's AQI reached its highest point of 33 at 4 AM during the Night, while the lowest point, 16, was recorded at 3 PM during the Day between 30th Aug and 31st Aug 2025.

Day & Night AQI Trend : Aug 2025

Barrie, Ontario, Canada

Aug
01st - 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 - 30th30th - 31st31st
Day
Night
1st Aug 2025376 AMAQI
1st Aug 2025347 AMAQI
1st Aug 2025308 AMAQI
1st Aug 2025329 AMAQI
1st Aug 20253210 AMAQI
1st Aug 20253411 AMAQI
1st Aug 20253012 PMAQI
1st Aug 2025281 PMAQI
1st Aug 2025282 PMAQI
1st Aug 2025303 PMAQI
1st Aug 2025294 PMAQI
1st Aug 2025245 PMAQI
1st Aug 2025236 PMAQI
1st Aug 2025247 PMAQI
1st Aug 2025308 PMAQI
1st Aug 2025309 PMAQI
1st Aug 20252810 PMAQI
1st Aug 20252611 PMAQI
2nd Aug 20252812 AMAQI
2nd Aug 2025301 AMAQI
2nd Aug 2025302 AMAQI
2nd Aug 2025323 AMAQI
2nd Aug 2025314 AMAQI
2nd Aug 2025345 AMAQI

18°C13/23°C

2nd Aug 2025366 AMAQI
2nd Aug 2025387 AMAQI
2nd Aug 2025338 AMAQI
2nd Aug 2025339 AMAQI
2nd Aug 20253410 AMAQI
2nd Aug 20253511 AMAQI
2nd Aug 20254312 PMAQI
2nd Aug 2025501 PMAQI
2nd Aug 2025522 PMAQI
2nd Aug 2025593 PMAQI
2nd Aug 2025704 PMAQI
2nd Aug 2025795 PMAQI
2nd Aug 2025866 PMAQI
2nd Aug 2025977 PMAQI
2nd Aug 2025998 PMAQI
2nd Aug 2025529 PMAQI
2nd Aug 20257210 PMAQI
2nd Aug 202510011 PMAQI
3rd Aug 20259012 AMAQI
3rd Aug 2025961 AMAQI
3rd Aug 20251112 AMAQI
3rd Aug 20251183 AMAQI
3rd Aug 20251194 AMAQI
3rd Aug 20251265 AMAQI

19°C10/28°C

3rd Aug 20251196 AMAQI
3rd Aug 20251107 AMAQI
3rd Aug 20251218 AMAQI
3rd Aug 20251259 AMAQI
3rd Aug 202512110 AMAQI
3rd Aug 202512011 AMAQI
3rd Aug 202512012 PMAQI
3rd Aug 20251281 PMAQI
3rd Aug 20251322 PMAQI
3rd Aug 20251343 PMAQI
3rd Aug 20251404 PMAQI
3rd Aug 20251435 PMAQI
3rd Aug 20251456 PMAQI
3rd Aug 20251357 PMAQI
3rd Aug 20251228 PMAQI
3rd Aug 20251209 PMAQI
3rd Aug 202513010 PMAQI
3rd Aug 202513411 PMAQI
4th Aug 202512812 AMAQI
4th Aug 20251351 AMAQI
4th Aug 20251352 AMAQI
4th Aug 20251303 AMAQI
4th Aug 20251304 AMAQI
4th Aug 20251465 AMAQI

21°C12/30°C

4th Aug 20251426 AMAQI
4th Aug 20251527 AMAQI
4th Aug 20251498 AMAQI
4th Aug 20251529 AMAQI
4th Aug 202515510 AMAQI
4th Aug 202515411 AMAQI
4th Aug 202514512 PMAQI
4th Aug 20251381 PMAQI
4th Aug 20251172 PMAQI
4th Aug 20251043 PMAQI
4th Aug 2025974 PMAQI
4th Aug 2025995 PMAQI
4th Aug 2025956 PMAQI
4th Aug 2025937 PMAQI
4th Aug 2025968 PMAQI
4th Aug 20251489 PMAQI
4th Aug 202512210 PMAQI
4th Aug 20259611 PMAQI
5th Aug 202510012 AMAQI
5th Aug 2025941 AMAQI
5th Aug 20251112 AMAQI
5th Aug 20251183 AMAQI
5th Aug 20251104 AMAQI
5th Aug 20251075 AMAQI

21°C13/29°C

5th Aug 20251086 AMAQI
5th Aug 2025977 AMAQI
5th Aug 2025918 AMAQI
5th Aug 2025949 AMAQI
5th Aug 20258310 AMAQI
5th Aug 20257611 AMAQI
5th Aug 20257812 PMAQI
5th Aug 2025701 PMAQI
5th Aug 2025692 PMAQI
5th Aug 2025723 PMAQI
5th Aug 2025804 PMAQI
5th Aug 2025845 PMAQI
5th Aug 2025866 PMAQI
5th Aug 2025907 PMAQI
5th Aug 2025878 PMAQI
5th Aug 2025939 PMAQI
5th Aug 20259210 PMAQI
5th Aug 202510211 PMAQI
6th Aug 20259012 AMAQI
6th Aug 2025841 AMAQI
6th Aug 20251032 AMAQI
6th Aug 20251003 AMAQI
6th Aug 20251004 AMAQI
6th Aug 2025855 AMAQI

23°C17/31°C

6th Aug 2025836 AMAQI
6th Aug 2025767 AMAQI
6th Aug 2025678 AMAQI
6th Aug 2025679 AMAQI
6th Aug 20256510 AMAQI
6th Aug 20256011 AMAQI
6th Aug 20256212 PMAQI
6th Aug 2025661 PMAQI
6th Aug 2025702 PMAQI
6th Aug 2025723 PMAQI
6th Aug 2025814 PMAQI
6th Aug 2025825 PMAQI
6th Aug 2025856 PMAQI
6th Aug 2025767 PMAQI
6th Aug 2025728 PMAQI
6th Aug 2025819 PMAQI
6th Aug 20257810 PMAQI
6th Aug 20257611 PMAQI
7th Aug 20257312 AMAQI
7th Aug 2025681 AMAQI
7th Aug 2025762 AMAQI
7th Aug 2025853 AMAQI
7th Aug 2025894 AMAQI
7th Aug 2025865 AMAQI

23°C18/29°C

7th Aug 2025896 AMAQI
7th Aug 2025857 AMAQI
7th Aug 2025848 AMAQI
7th Aug 2025819 AMAQI
7th Aug 20258510 AMAQI
7th Aug 20258311 AMAQI
7th Aug 20259212 PMAQI
7th Aug 2025861 PMAQI
7th Aug 2025832 PMAQI
7th Aug 2025843 PMAQI
7th Aug 2025854 PMAQI
7th Aug 2025855 PMAQI
7th Aug 2025856 PMAQI
7th Aug 2025907 PMAQI
7th Aug 2025888 PMAQI
7th Aug 2025869 PMAQI
7th Aug 20259010 PMAQI
7th Aug 20258611 PMAQI
8th Aug 20258612 AMAQI
8th Aug 2025831 AMAQI
8th Aug 2025872 AMAQI
8th Aug 2025873 AMAQI
8th Aug 2025914 AMAQI
8th Aug 2025905 AMAQI

24°C19/31°C

8th Aug 2025926 AMAQI
8th Aug 2025917 AMAQI
8th Aug 2025918 AMAQI
8th Aug 2025979 AMAQI
8th Aug 20259610 AMAQI
8th Aug 20259011 AMAQI
8th Aug 20259212 PMAQI
8th Aug 2025891 PMAQI
8th Aug 2025882 PMAQI
8th Aug 2025823 PMAQI
8th Aug 2025814 PMAQI
8th Aug 2025825 PMAQI
8th Aug 2025796 PMAQI
8th Aug 2025787 PMAQI
8th Aug 2025788 PMAQI
8th Aug 2025879 PMAQI
8th Aug 20258510 PMAQI
8th Aug 20257711 PMAQI
9th Aug 20257812 AMAQI
9th Aug 2025781 AMAQI
9th Aug 2025722 AMAQI
9th Aug 2025753 AMAQI
9th Aug 2025764 AMAQI
9th Aug 2025765 AMAQI

23°C16/32°C

9th Aug 2025756 AMAQI
9th Aug 2025757 AMAQI
9th Aug 2025758 AMAQI
9th Aug 2025729 AMAQI
9th Aug 20257110 AMAQI
9th Aug 20256911 AMAQI
9th Aug 20256612 PMAQI
9th Aug 2025641 PMAQI
9th Aug 2025612 PMAQI
9th Aug 2025603 PMAQI
9th Aug 2025614 PMAQI
9th Aug 2025585 PMAQI
9th Aug 2025596 PMAQI
9th Aug 2025607 PMAQI
9th Aug 2025628 PMAQI
9th Aug 2025649 PMAQI
9th Aug 20256510 PMAQI
9th Aug 20256311 PMAQI
10th Aug 20256012 AMAQI
10th Aug 2025611 AMAQI
10th Aug 2025582 AMAQI
10th Aug 2025593 AMAQI
10th Aug 2025604 AMAQI
10th Aug 2025625 AMAQI

24°C18/30°C

10th Aug 2025636 AMAQI
10th Aug 2025647 AMAQI
10th Aug 2025648 AMAQI
10th Aug 2025669 AMAQI
10th Aug 20256510 AMAQI
10th Aug 20256411 AMAQI
10th Aug 20256412 PMAQI
10th Aug 2025631 PMAQI
10th Aug 2025622 PMAQI
10th Aug 2025633 PMAQI
10th Aug 2025624 PMAQI
10th Aug 2025665 PMAQI
10th Aug 2025626 PMAQI
10th Aug 2025627 PMAQI
10th Aug 2025618 PMAQI
10th Aug 2025649 PMAQI
10th Aug 20256110 PMAQI
10th Aug 20256011 PMAQI
11th Aug 20256412 AMAQI
11th Aug 2025631 AMAQI
11th Aug 2025642 AMAQI
11th Aug 2025603 AMAQI
11th Aug 2025584 AMAQI
11th Aug 2025595 AMAQI

26°C18/34°C

11th Aug 2025596 AMAQI
11th Aug 2025607 AMAQI
11th Aug 2025618 AMAQI
11th Aug 2025629 AMAQI
11th Aug 20256410 AMAQI
11th Aug 20256411 AMAQI
11th Aug 20256312 PMAQI
11th Aug 2025641 PMAQI
11th Aug 2025622 PMAQI
11th Aug 2025613 PMAQI
11th Aug 2025604 PMAQI
11th Aug 2025595 PMAQI
11th Aug 2025596 PMAQI
11th Aug 2025587 PMAQI
11th Aug 2025588 PMAQI
11th Aug 2025609 PMAQI
11th Aug 20255810 PMAQI
11th Aug 20255611 PMAQI
12th Aug 20255612 AMAQI
12th Aug 2025551 AMAQI
12th Aug 2025572 AMAQI
12th Aug 2025573 AMAQI
12th Aug 2025574 AMAQI
12th Aug 2025565 AMAQI

26°C19/34°C

12th Aug 2025566 AMAQI
12th Aug 2025587 AMAQI
12th Aug 2025578 AMAQI
12th Aug 2025549 AMAQI
12th Aug 20255610 AMAQI
12th Aug 20255811 AMAQI
12th Aug 20255512 PMAQI
12th Aug 2025541 PMAQI
12th Aug 2025522 PMAQI
12th Aug 2025523 PMAQI
12th Aug 2025504 PMAQI
12th Aug 2025485 PMAQI
12th Aug 2025456 PMAQI
12th Aug 2025437 PMAQI
12th Aug 2025418 PMAQI
12th Aug 2025539 PMAQI
12th Aug 20254510 PMAQI
12th Aug 20254211 PMAQI
13th Aug 20254112 AMAQI
13th Aug 2025421 AMAQI
13th Aug 2025422 AMAQI
13th Aug 2025413 AMAQI
13th Aug 2025344 AMAQI
13th Aug 2025345 AMAQI

26°C20/33°C

13th Aug 2025306 AMAQI
13th Aug 2025297 AMAQI
13th Aug 2025308 AMAQI
13th Aug 2025329 AMAQI
13th Aug 20253010 AMAQI
13th Aug 20253111 AMAQI
13th Aug 20253012 PMAQI
13th Aug 2025311 PMAQI
13th Aug 2025342 PMAQI
13th Aug 2025463 PMAQI
13th Aug 2025534 PMAQI
13th Aug 2025545 PMAQI
13th Aug 2025546 PMAQI
13th Aug 2025567 PMAQI
13th Aug 2025548 PMAQI
13th Aug 2025409 PMAQI
13th Aug 20255010 PMAQI
13th Aug 20256011 PMAQI
14th Aug 20256212 AMAQI
14th Aug 2025641 AMAQI
14th Aug 2025632 AMAQI
14th Aug 2025633 AMAQI
14th Aug 2025644 AMAQI
14th Aug 2025655 AMAQI

23°C18/28°C

14th Aug 2025636 AMAQI
14th Aug 2025647 AMAQI
14th Aug 2025688 AMAQI
14th Aug 2025729 AMAQI
14th Aug 20257110 AMAQI
14th Aug 20255611 AMAQI
14th Aug 20254312 PMAQI
14th Aug 2025521 PMAQI
14th Aug 2025672 PMAQI
14th Aug 2025663 PMAQI
14th Aug 2025664 PMAQI
14th Aug 2025705 PMAQI
14th Aug 2025706 PMAQI
14th Aug 2025717 PMAQI
14th Aug 2025698 PMAQI
14th Aug 2025689 PMAQI
14th Aug 20256610 PMAQI
14th Aug 20256411 PMAQI
15th Aug 20256612 AMAQI
15th Aug 2025631 AMAQI
15th Aug 2025622 AMAQI
15th Aug 2025613 AMAQI
15th Aug 2025604 AMAQI
15th Aug 2025595 AMAQI

22°C17/28°C

15th Aug 2025586 AMAQI
15th Aug 2025577 AMAQI
15th Aug 2025578 AMAQI
15th Aug 2025579 AMAQI
15th Aug 20255710 AMAQI
15th Aug 20255611 AMAQI
15th Aug 20255412 PMAQI
15th Aug 2025551 PMAQI
15th Aug 2025562 PMAQI
15th Aug 2025613 PMAQI
15th Aug 2025614 PMAQI
15th Aug 2025635 PMAQI
15th Aug 2025636 PMAQI
15th Aug 2025627 PMAQI
15th Aug 2025638 PMAQI
15th Aug 2025639 PMAQI
15th Aug 20256210 PMAQI
15th Aug 20256011 PMAQI
16th Aug 20256012 AMAQI
16th Aug 2025591 AMAQI
16th Aug 2025592 AMAQI
16th Aug 2025583 AMAQI
16th Aug 2025584 AMAQI
16th Aug 2025585 AMAQI

24°C16/32°C

16th Aug 2025596 AMAQI
16th Aug 2025567 AMAQI
16th Aug 2025588 AMAQI
16th Aug 2025589 AMAQI
16th Aug 20255910 AMAQI
16th Aug 20255911 AMAQI
16th Aug 20256012 PMAQI
16th Aug 2025601 PMAQI
16th Aug 2025622 PMAQI
16th Aug 2025633 PMAQI
16th Aug 2025634 PMAQI
16th Aug 2025605 PMAQI
16th Aug 2025616 PMAQI
16th Aug 2025617 PMAQI
16th Aug 2025608 PMAQI
16th Aug 2025609 PMAQI
16th Aug 20255710 PMAQI
16th Aug 20255811 PMAQI
17th Aug 20255812 AMAQI
17th Aug 2025581 AMAQI
17th Aug 2025592 AMAQI
17th Aug 2025583 AMAQI
17th Aug 2025534 AMAQI
17th Aug 2025495 AMAQI

25°C16/31°C

17th Aug 2025446 AMAQI
17th Aug 2025357 AMAQI
17th Aug 2025348 AMAQI
17th Aug 2025319 AMAQI
17th Aug 20252910 AMAQI
17th Aug 20253011 AMAQI
17th Aug 20252812 PMAQI
17th Aug 2025261 PMAQI
17th Aug 2025222 PMAQI
17th Aug 2025173 PMAQI
17th Aug 2025154 PMAQI
17th Aug 2025155 PMAQI
17th Aug 2025156 PMAQI
17th Aug 2025157 PMAQI
17th Aug 2025148 PMAQI
17th Aug 2025319 PMAQI
17th Aug 20252210 PMAQI
17th Aug 20251511 PMAQI
18th Aug 20251412 AMAQI
18th Aug 2025141 AMAQI
18th Aug 2025142 AMAQI
18th Aug 2025143 AMAQI
18th Aug 2025134 AMAQI
18th Aug 2025135 AMAQI

21°C15/26°C

18th Aug 2025146 AMAQI
18th Aug 2025137 AMAQI
18th Aug 2025148 AMAQI
18th Aug 2025159 AMAQI
18th Aug 20251610 AMAQI
18th Aug 20251611 AMAQI
18th Aug 20251612 PMAQI
18th Aug 2025161 PMAQI
18th Aug 2025162 PMAQI
18th Aug 2025163 PMAQI
18th Aug 2025154 PMAQI
18th Aug 2025165 PMAQI
18th Aug 2025166 PMAQI
18th Aug 2025147 PMAQI
18th Aug 2025158 PMAQI
18th Aug 2025169 PMAQI
18th Aug 20251610 PMAQI
18th Aug 20251811 PMAQI
19th Aug 20251712 AMAQI
19th Aug 2025181 AMAQI
19th Aug 2025182 AMAQI
19th Aug 2025183 AMAQI
19th Aug 2025184 AMAQI
19th Aug 2025185 AMAQI

17°C10/23°C

19th Aug 2025166 AMAQI
19th Aug 2025167 AMAQI
19th Aug 2025168 AMAQI
19th Aug 2025169 AMAQI
19th Aug 20251710 AMAQI
19th Aug 20251811 AMAQI
19th Aug 20251812 PMAQI
19th Aug 2025181 PMAQI
19th Aug 2025182 PMAQI
19th Aug 2025203 PMAQI
19th Aug 2025194 PMAQI
19th Aug 2025185 PMAQI
19th Aug 2025196 PMAQI
19th Aug 2025187 PMAQI
19th Aug 2025188 PMAQI
19th Aug 2025189 PMAQI
19th Aug 20251810 PMAQI
19th Aug 20251911 PMAQI
20th Aug 20251812 AMAQI
20th Aug 2025181 AMAQI
20th Aug 2025172 AMAQI
20th Aug 2025173 AMAQI
20th Aug 2025174 AMAQI
20th Aug 2025175 AMAQI

17°C14/20°C

20th Aug 2025176 AMAQI
20th Aug 2025187 AMAQI
20th Aug 2025168 AMAQI
20th Aug 2025189 AMAQI
20th Aug 20251810 AMAQI
20th Aug 20251711 AMAQI
20th Aug 20251612 PMAQI
20th Aug 2025151 PMAQI
20th Aug 2025152 PMAQI
20th Aug 2025163 PMAQI
20th Aug 2025174 PMAQI
20th Aug 2025165 PMAQI
20th Aug 2025166 PMAQI
20th Aug 2025177 PMAQI
20th Aug 2025188 PMAQI
20th Aug 2025189 PMAQI
20th Aug 20251810 PMAQI
20th Aug 20251811 PMAQI
21st Aug 20252012 AMAQI
21st Aug 2025191 AMAQI
21st Aug 2025192 AMAQI
21st Aug 2025203 AMAQI
21st Aug 2025204 AMAQI
21st Aug 2025195 AMAQI

19°C17/23°C

21st Aug 2025206 AMAQI
21st Aug 2025217 AMAQI
21st Aug 2025208 AMAQI
21st Aug 2025229 AMAQI
21st Aug 20252210 AMAQI
21st Aug 20252211 AMAQI
21st Aug 20252212 PMAQI
21st Aug 2025211 PMAQI
21st Aug 2025222 PMAQI
21st Aug 2025213 PMAQI
21st Aug 2025194 PMAQI
21st Aug 2025165 PMAQI
21st Aug 2025186 PMAQI
21st Aug 2025187 PMAQI
21st Aug 2025188 PMAQI
21st Aug 2025209 PMAQI
21st Aug 20252110 PMAQI
21st Aug 20252211 PMAQI
22nd Aug 20252312 AMAQI
22nd Aug 2025221 AMAQI
22nd Aug 2025222 AMAQI
22nd Aug 2025233 AMAQI
22nd Aug 2025224 AMAQI
22nd Aug 2025225 AMAQI

20°C16/27°C

22nd Aug 2025246 AMAQI
22nd Aug 2025247 AMAQI
22nd Aug 2025258 AMAQI
22nd Aug 2025279 AMAQI
22nd Aug 20253010 AMAQI
22nd Aug 20253011 AMAQI
22nd Aug 20252812 PMAQI
22nd Aug 2025281 PMAQI
22nd Aug 2025272 PMAQI
22nd Aug 2025273 PMAQI
22nd Aug 2025284 PMAQI
22nd Aug 2025305 PMAQI
22nd Aug 2025296 PMAQI
22nd Aug 2025287 PMAQI
22nd Aug 2025288 PMAQI
22nd Aug 2025269 PMAQI
22nd Aug 20252810 PMAQI
22nd Aug 20252811 PMAQI
23rd Aug 20252812 AMAQI
23rd Aug 2025371 AMAQI
23rd Aug 2025382 AMAQI
23rd Aug 2025363 AMAQI
23rd Aug 2025344 AMAQI
23rd Aug 2025335 AMAQI

21°C14/29°C

23rd Aug 2025336 AMAQI
23rd Aug 2025357 AMAQI
23rd Aug 2025378 AMAQI
23rd Aug 2025369 AMAQI
23rd Aug 20253310 AMAQI
23rd Aug 20252811 AMAQI
23rd Aug 20252412 PMAQI
23rd Aug 2025261 PMAQI
23rd Aug 2025262 PMAQI
23rd Aug 2025283 PMAQI
23rd Aug 2025294 PMAQI
23rd Aug 2025315 PMAQI
23rd Aug 2025336 PMAQI
23rd Aug 2025377 PMAQI
23rd Aug 2025368 PMAQI
23rd Aug 2025339 PMAQI
23rd Aug 20253410 PMAQI
23rd Aug 20253611 PMAQI
24th Aug 20253712 AMAQI
24th Aug 2025351 AMAQI
24th Aug 2025282 AMAQI
24th Aug 2025263 AMAQI
24th Aug 2025254 AMAQI
24th Aug 2025245 AMAQI

21°C15/27°C

24th Aug 2025256 AMAQI
24th Aug 2025247 AMAQI
24th Aug 2025248 AMAQI
24th Aug 2025229 AMAQI
24th Aug 20252210 AMAQI
24th Aug 20252211 AMAQI
24th Aug 20252012 PMAQI
24th Aug 2025191 PMAQI
24th Aug 2025182 PMAQI
24th Aug 2025183 PMAQI
24th Aug 2025194 PMAQI
24th Aug 2025195 PMAQI
24th Aug 2025186 PMAQI
24th Aug 2025177 PMAQI
24th Aug 2025188 PMAQI
24th Aug 2025249 PMAQI
24th Aug 20252010 PMAQI
24th Aug 20251811 PMAQI
25th Aug 20251712 AMAQI
25th Aug 2025171 AMAQI
25th Aug 2025162 AMAQI
25th Aug 2025173 AMAQI
25th Aug 2025164 AMAQI
25th Aug 2025175 AMAQI

19°C13/23°C

25th Aug 2025166 AMAQI
25th Aug 2025167 AMAQI
25th Aug 2025158 AMAQI
25th Aug 2025159 AMAQI
25th Aug 20251710 AMAQI
25th Aug 20251611 AMAQI
25th Aug 20251412 PMAQI
25th Aug 2025141 PMAQI
25th Aug 2025132 PMAQI
25th Aug 2025143 PMAQI
25th Aug 2025124 PMAQI
25th Aug 2025135 PMAQI
25th Aug 2025146 PMAQI
25th Aug 2025147 PMAQI
25th Aug 2025158 PMAQI
25th Aug 2025169 PMAQI
25th Aug 20251710 PMAQI
25th Aug 20251711 PMAQI
26th Aug 20251712 AMAQI
26th Aug 2025191 AMAQI
26th Aug 2025222 AMAQI
26th Aug 2025173 AMAQI
26th Aug 2025184 AMAQI
26th Aug 2025165 AMAQI

16°C11/18°C

26th Aug 2025166 AMAQI
26th Aug 2025167 AMAQI
26th Aug 2025168 AMAQI
26th Aug 2025189 AMAQI
26th Aug 20251910 AMAQI
26th Aug 20251811 AMAQI
26th Aug 20251612 PMAQI
26th Aug 2025151 PMAQI
26th Aug 2025152 PMAQI
26th Aug 2025153 PMAQI
26th Aug 2025144 PMAQI
26th Aug 2025135 PMAQI
26th Aug 2025126 PMAQI
26th Aug 2025127 PMAQI
26th Aug 2025138 PMAQI
26th Aug 2025179 PMAQI
26th Aug 20251810 PMAQI
26th Aug 20252211 PMAQI
27th Aug 20252812 AMAQI
27th Aug 2025211 AMAQI
27th Aug 2025202 AMAQI
27th Aug 2025213 AMAQI
27th Aug 2025214 AMAQI
27th Aug 2025225 AMAQI

15°C11/18°C

27th Aug 2025216 AMAQI
27th Aug 2025207 AMAQI
27th Aug 2025208 AMAQI
27th Aug 2025209 AMAQI
27th Aug 20252210 AMAQI
27th Aug 20252311 AMAQI
27th Aug 20252212 PMAQI
27th Aug 2025221 PMAQI
27th Aug 2025202 PMAQI
27th Aug 2025193 PMAQI
27th Aug 2025184 PMAQI
27th Aug 2025185 PMAQI
27th Aug 2025186 PMAQI
27th Aug 2025177 PMAQI
27th Aug 2025178 PMAQI
27th Aug 2025209 PMAQI
27th Aug 20251910 PMAQI
27th Aug 20251911 PMAQI
28th Aug 20252012 AMAQI
28th Aug 2025211 AMAQI
28th Aug 2025212 AMAQI
28th Aug 2025223 AMAQI
28th Aug 2025204 AMAQI
28th Aug 2025205 AMAQI

15°C7/21°C

28th Aug 2025216 AMAQI
28th Aug 2025247 AMAQI
28th Aug 2025258 AMAQI
28th Aug 2025299 AMAQI
28th Aug 20253110 AMAQI
28th Aug 20253011 AMAQI
28th Aug 20252912 PMAQI
28th Aug 2025281 PMAQI
28th Aug 2025272 PMAQI
28th Aug 2025263 PMAQI
28th Aug 2025254 PMAQI
28th Aug 2025235 PMAQI
28th Aug 2025206 PMAQI
28th Aug 2025197 PMAQI
28th Aug 2025188 PMAQI
28th Aug 2025239 PMAQI
28th Aug 20252310 PMAQI
28th Aug 20252211 PMAQI
29th Aug 20252212 AMAQI
29th Aug 2025191 AMAQI
29th Aug 2025192 AMAQI
29th Aug 2025173 AMAQI
29th Aug 2025174 AMAQI
29th Aug 2025185 AMAQI

16°C12/19°C

29th Aug 2025186 AMAQI
29th Aug 2025167 AMAQI
29th Aug 2025168 AMAQI
29th Aug 2025179 AMAQI
29th Aug 20251710 AMAQI
29th Aug 20251811 AMAQI
29th Aug 20251712 PMAQI
29th Aug 2025151 PMAQI
29th Aug 2025142 PMAQI
29th Aug 2025143 PMAQI
29th Aug 2025144 PMAQI
29th Aug 2025155 PMAQI
29th Aug 2025146 PMAQI
29th Aug 2025157 PMAQI
29th Aug 2025168 PMAQI
29th Aug 2025169 PMAQI
29th Aug 20251910 PMAQI
29th Aug 20252111 PMAQI
30th Aug 20252212 AMAQI
30th Aug 2025241 AMAQI
30th Aug 2025242 AMAQI
30th Aug 2025253 AMAQI
30th Aug 2025234 AMAQI
30th Aug 2025235 AMAQI

13°C8/18°C

30th Aug 2025236 AMAQI
30th Aug 2025217 AMAQI
30th Aug 2025238 AMAQI
30th Aug 2025229 AMAQI
30th Aug 20252110 AMAQI
30th Aug 20251911 AMAQI
30th Aug 20251812 PMAQI
30th Aug 2025171 PMAQI
30th Aug 2025162 PMAQI
30th Aug 2025163 PMAQI
30th Aug 2025174 PMAQI
30th Aug 2025175 PMAQI
30th Aug 2025176 PMAQI
30th Aug 2025177 PMAQI
30th Aug 2025178 PMAQI
30th Aug 2025199 PMAQI
30th Aug 20252010 PMAQI
30th Aug 20252311 PMAQI
31st Aug 20252612 AMAQI
31st Aug 2025271 AMAQI
31st Aug 2025272 AMAQI
31st Aug 2025293 AMAQI
31st Aug 2025334 AMAQI
31st Aug 2025335 AMAQI

15°C7/23°C

31st Aug 2025326 AMAQI
6 AM
31st Aug 2025287 AMAQI
31st Aug 2025268 AMAQI
31st Aug 2025249 AMAQI
31st Aug 20252310 AMAQI
31st Aug 20252111 AMAQI
31st Aug 20251912 PMAQI
31st Aug 2025181 PMAQI
1 PM
31st Aug 2025182 PMAQI
31st Aug 2025213 PMAQI
31st Aug 2025204 PMAQI
31st Aug 2025205 PMAQI
31st Aug 2025246 PMAQI
8 PM
1 AM
5 AM

--°C/°C

Day time
Avg. Highest Time
6 AM - 10 AM

48AQI

5 hours / Day
150 hours / Month
Avg. Lowest Time
11 AM - 8 PM

46AQI

10 hours / Day
300 hours / Month
In the last 30 days, during the daytime, the highest AQI was between 6 AM to 10 AM (Avg. 48), while the lowest AQI was between 11 AM to 8 PM (Avg. 46).
Night time
Avg. Highest Time
2 AM - 11 PM

50AQI

7 hours / Day
210 hours / Month
Avg. Lowest Time
12 AM - 11 PM

49AQI

9 hours / Day
270 hours / Month
In the last 30 days, during the daytime, the highest AQI was between 2 AM to 11 PM (Avg. 50), while the lowest AQI was between 12 AM to 11 PM (Avg. 49).

2025 Days Vs Air Quality

Barrie, Ontario, Canada

2025

78%

122

21%

33

1%

2

Total number of days with different AQI categories in last 243 days in 2025 (122 days remaining)

Good
122 Days
Moderate
33 Days
Poor
2 Days
Unhealthy
0 Days
Severe
0 Days
Hazardous
0 Days



Under WHO’s Safe Air Quality Limits: 78%

Health Risk Level:

Low

In 2025, 78% of 243 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 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.

-1th undefined 2025
-1th undefined 2025
-1th undefined 2025
1st January 2025
2nd January 2025
3rd January 2025
4th January 2025
5th January 2025
6th January 2025
7th January 2025
8th January 2025
9th January 2025
10th January 2025
11th January 2025
12th January 2025
13th January 2025
14th January 2025
15th January 2025
16th January 2025
17th January 2025
18th January 2025
19th January 2025
20th January 2025
21st January 2025
22nd January 2025
23rd January 2025
24th January 2025
25th January 2025
26th January 2025
27th January 2025
28th January 2025
29th January 2025
30th January 2025
31st January 2025
1st February 2025
2nd February 2025
3rd February 2025
4th February 2025
5th February 2025
6th February 2025
7th February 2025
8th February 2025
9th February 2025
10th February 2025
11th February 2025
12th February 2025
13th February 2025
14th February 2025
15th February 2025
16th February 2025
17th February 2025
18th February 2025
19th February 2025
20th February 2025
21st February 2025
22nd February 2025
23rd February 2025
24th February 2025
25th February 2025
26th February 2025
27th February 2025
28th February 2025
1st March 2025
2nd March 2025
3rd March 2025
4th March 2025
5th March 2025
6th March 2025
7th March 2025
8th March 2025
9th March 2025
10th March 2025
11th March 2025
12th March 2025
13th March 2025
14th March 2025
15th March 2025
16th March 2025
17th March 2025
18th March 2025
19th March 2025
20th March 2025
21st March 2025
22nd March 2025
23rd March 2025
24th March 2025
25th March 2025
26th March 2025
27th March 2025
25AQI
28th March 2025
20AQI
29th March 2025
16AQI
30th March 2025
18AQI
31st March 2025
22AQI
1st April 2025
24AQI
2nd April 2025
18AQI
3rd April 2025
24AQI
4th April 2025
18AQI
5th April 2025
24AQI
6th April 2025
17AQI
7th April 2025
25AQI
8th April 2025
15AQI
9th April 2025
20AQI
10th April 2025
37AQI
11th April 2025
32AQI
12th April 2025
31AQI
13th April 2025
34AQI
14th April 2025
34AQI
15th April 2025
21AQI
16th April 2025
13AQI
17th April 2025
16AQI
18th April 2025
38AQI
19th April 2025
40AQI
20th April 2025
17AQI
21st April 2025
26AQI
22nd April 2025
15AQI
23rd April 2025
21AQI
24th April 2025
42AQI
25th April 2025
41AQI
26th April 2025
21AQI
27th April 2025
16AQI
28th April 2025
28AQI
29th April 2025
35AQI
30th April 2025
17AQI
1st May 2025
27AQI
2nd May 2025
28AQI
3rd May 2025
16AQI
4th May 2025
18AQI
5th May 2025
23AQI
6th May 2025
24AQI
7th May 2025
27AQI
8th May 2025
18AQI
9th May 2025
24AQI
10th May 2025
23AQI
11th May 2025
21AQI
12th May 2025
29AQI
13th May 2025
41AQI
14th May 2025
29AQI
15th May 2025
30AQI
16th May 2025
35AQI
17th May 2025
34AQI
18th May 2025
16AQI
19th May 2025
15AQI
20th May 2025
15AQI
21st May 2025
21AQI
22nd May 2025
14AQI
23rd May 2025
11AQI
24th May 2025
15AQI
25th May 2025
16AQI
26th May 2025
22AQI
27th May 2025
31AQI
28th May 2025
29AQI
29th May 2025
22AQI
30th May 2025
31AQI
31st May 2025
27AQI
1st June 2025
16AQI
2nd June 2025
21AQI
3rd June 2025
41AQI
4th June 2025
63AQI
5th June 2025
51AQI
6th June 2025
65AQI
7th June 2025
67AQI
8th June 2025
78AQI
9th June 2025
69AQI
10th June 2025
56AQI
11th June 2025
62AQI
12th June 2025
66AQI
13th June 2025
41AQI
14th June 2025
33AQI
15th June 2025
38AQI
16th June 2025
46AQI
17th June 2025
43AQI
18th June 2025
37AQI
19th June 2025
33AQI
20th June 2025
37AQI
21st June 2025
51AQI
22nd June 2025
53AQI
23rd June 2025
53AQI
24th June 2025
53AQI
25th June 2025
45AQI
26th June 2025
40AQI
27th June 2025
35AQI
28th June 2025
30AQI
29th June 2025
33AQI
30th June 2025
41AQI
1st July 2025
38AQI
2nd July 2025
40AQI
3rd July 2025
49AQI
4th July 2025
34AQI
5th July 2025
45AQI
6th July 2025
54AQI
7th July 2025
47AQI
8th July 2025
35AQI
9th July 2025
45AQI
10th July 2025
47AQI
11th July 2025
51AQI
12th July 2025
49AQI
13th July 2025
48AQI
14th July 2025
53AQI
15th July 2025
60AQI
16th July 2025
69AQI
17th July 2025
49AQI
18th July 2025
29AQI
19th July 2025
36AQI
20th July 2025
29AQI
21st July 2025
40AQI
22nd July 2025
22AQI
23rd July 2025
28AQI
24th July 2025
38AQI
25th July 2025
35AQI
26th July 2025
54AQI
27th July 2025
48AQI
28th July 2025
52AQI
29th July 2025
45AQI
30th July 2025
55AQI
31st July 2025
85AQI
1st August 2025
44AQI
2nd August 2025
50AQI
3rd August 2025
118AQI
4th August 2025
128AQI
5th August 2025
94AQI
6th August 2025
84AQI
7th August 2025
83AQI
8th August 2025
87AQI
9th August 2025
69AQI
10th August 2025
62AQI
11th August 2025
61AQI
12th August 2025
52AQI
13th August 2025
41AQI
14th August 2025
64AQI
15th August 2025
61AQI
16th August 2025
59AQI
17th August 2025
36AQI
18th August 2025
15AQI
19th August 2025
18AQI
20th August 2025
17AQI
21st August 2025
20AQI
22nd August 2025
26AQI
23rd August 2025
32AQI
24th August 2025
25AQI
25th August 2025
16AQI
26th August 2025
16AQI
27th August 2025
22AQI
28th August 2025
23AQI
29th August 2025
18AQI
30th August 2025
21AQI
31st August 2025
1st September 2025
2nd September 2025
3rd September 2025
4th September 2025
5th September 2025
6th September 2025
7th September 2025
8th September 2025
9th September 2025
10th September 2025
11th September 2025
12th September 2025
13th September 2025
14th September 2025
15th September 2025
16th September 2025
17th September 2025
18th September 2025
19th September 2025
20th September 2025
21st September 2025
22nd September 2025
23rd September 2025
24th September 2025
25th September 2025
26th September 2025
27th September 2025
28th September 2025
29th September 2025
30th September 2025
1st October 2025
2nd October 2025
3rd October 2025
4th October 2025
5th October 2025
6th October 2025
7th October 2025
8th October 2025
9th October 2025
10th October 2025
11th October 2025
12th October 2025
13th October 2025
14th October 2025
15th October 2025
16th October 2025
17th October 2025
18th October 2025
19th October 2025
20th October 2025
21st October 2025
22nd October 2025
23rd October 2025
24th October 2025
25th October 2025
26th October 2025
27th October 2025
28th October 2025
29th October 2025
30th October 2025
31st October 2025
1st November 2025
2nd November 2025
3rd November 2025
4th November 2025
5th November 2025
6th November 2025
7th November 2025
8th November 2025
9th November 2025
10th November 2025
11th November 2025
12th November 2025
13th November 2025
14th November 2025
15th November 2025
16th November 2025
17th November 2025
18th November 2025
19th November 2025
20th November 2025
21st November 2025
22nd November 2025
23rd November 2025
24th November 2025
25th November 2025
26th November 2025
27th November 2025
28th November 2025
29th November 2025
30th November 2025
1st December 2025
2nd December 2025
3rd December 2025
4th December 2025
5th December 2025
6th December 2025
7th December 2025
8th December 2025
9th December 2025
10th December 2025
11th December 2025
12th December 2025
13th December 2025
14th December 2025
15th December 2025
16th December 2025
17th December 2025
18th December 2025
19th December 2025
20th December 2025
21st December 2025
22nd December 2025
23rd December 2025
24th December 2025
25th December 2025
26th December 2025
27th December 2025
28th December 2025
29th December 2025
30th December 2025
31st December 2025

20AQI

25AQI

24AQI

47AQI

45AQI

49AQI


No. of days

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

202537AQI

5
30
31
17
13
22
9
17
11
2
122
33
2

Highest AQI recorded in

August

49AQI


Lowest AQI recorded in

March

20AQI


Most & Least Polluted Years Over the Last 1 Years

Most Polluted Year Recorded
2025(Avg.)
37AQI
Least Polluted Year Recorded
2025(Avg.)
37AQI


Barrie's annual 2025 AQI (37) shows an average percentage change of NaN% (improved AQI) compared to previous years: .