Courtenay, British Columbia, 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+
October Air Quality Analysis
Courtenay, British Columbia, Canada
2021
2022
2023
2024
2025
AQI
.
Days
AQI Trends: Highest and Lowest
Highest AQI recorded on
17th Oct 2022
68AQILowest AQI recorded on
19th Oct 2021
5AQISame Day Analysis (4th October ):
On this day, AQI across the 5 years varied significantly: 2025 ranks 1st highest AQI at 39 of Good air quality on the same day.
Download 2024 Annual Data
World Air Quality Report
Day & Night AQI Trend: 4th Oct - 5th Oct 2025
Courtenay, British Columbia, Canada
AQI
Day
Night
.
7 AM4th Oct 2025
7 PM
6 AM5th Oct 2025
Day time
Avg. Highest Time
7AM4th Oct
41AQI
Avg. Lowest Time
5PM4th Oct
12AQI
Night time
Avg. Highest Time
1AM5th Oct
61AQI
Avg. Lowest Time
6AM5th Oct
14AQI
In the last 24 hours,
Courtenay's AQI reached its highest point of 61 at 1 AM during the Night, while the lowest point, 12, was recorded at 5 PM during the Day between 4th Oct and 5th Oct 2025.
Day & Night AQI Trend : Sep - Oct 2025
Courtenay, British Columbia, Canada
SepOct
05th - 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 - 01st01st - 02nd02nd - 03rd03rd - 04th04th - 05th05th
Day
Night
5th Sep 2025627 AMAQI
5th Sep 2025648 AMAQI
5th Sep 2025659 AMAQI
5th Sep 20256810 AMAQI
5th Sep 20256611 AMAQI
5th Sep 20257412 PMAQI
5th Sep 2025681 PMAQI
5th Sep 2025722 PMAQI
5th Sep 2025783 PMAQI
5th Sep 2025954 PMAQI
5th Sep 20251225 PMAQI
5th Sep 2025996 PMAQI
5th Sep 2025917 PMAQI
5th Sep 2025978 PMAQI
5th Sep 2025729 PMAQI
5th Sep 20258010 PMAQI
5th Sep 20257611 PMAQI
6th Sep 20257312 AMAQI
6th Sep 2025681 AMAQI
6th Sep 2025732 AMAQI
6th Sep 2025713 AMAQI
6th Sep 2025704 AMAQI
6th Sep 2025755 AMAQI
6th Sep 2025756 AMAQI
20°C16/23°C
6th Sep 2025767 AMAQI
6th Sep 2025858 AMAQI
6th Sep 2025779 AMAQI
6th Sep 20258210 AMAQI
6th Sep 20257611 AMAQI
6th Sep 20257912 PMAQI
6th Sep 2025771 PMAQI
6th Sep 2025722 PMAQI
6th Sep 2025723 PMAQI
6th Sep 2025764 PMAQI
6th Sep 2025735 PMAQI
6th Sep 2025706 PMAQI
6th Sep 2025667 PMAQI
6th Sep 2025648 PMAQI
6th Sep 2025709 PMAQI
6th Sep 20256410 PMAQI
6th Sep 20256011 PMAQI
7th Sep 20255712 AMAQI
7th Sep 2025551 AMAQI
7th Sep 2025572 AMAQI
7th Sep 2025563 AMAQI
7th Sep 2025544 AMAQI
7th Sep 2025525 AMAQI
7th Sep 2025506 AMAQI
19°C17/20°C
7th Sep 2025497 AMAQI
7th Sep 2025478 AMAQI
7th Sep 2025489 AMAQI
7th Sep 20254910 AMAQI
7th Sep 20255011 AMAQI
7th Sep 20254912 PMAQI
7th Sep 2025461 PMAQI
7th Sep 2025462 PMAQI
7th Sep 2025423 PMAQI
7th Sep 2025374 PMAQI
7th Sep 2025405 PMAQI
7th Sep 2025436 PMAQI
7th Sep 2025417 PMAQI
7th Sep 2025428 PMAQI
7th Sep 2025509 PMAQI
7th Sep 20254310 PMAQI
7th Sep 20253511 PMAQI
8th Sep 20253612 AMAQI
8th Sep 2025331 AMAQI
8th Sep 2025332 AMAQI
8th Sep 2025323 AMAQI
8th Sep 2025344 AMAQI
8th Sep 2025305 AMAQI
8th Sep 2025316 AMAQI
17°C15/18°C
8th Sep 2025307 AMAQI
8th Sep 2025328 AMAQI
8th Sep 2025329 AMAQI
8th Sep 20253210 AMAQI
8th Sep 20253011 AMAQI
8th Sep 20253212 PMAQI
8th Sep 2025351 PMAQI
8th Sep 2025352 PMAQI
8th Sep 2025353 PMAQI
8th Sep 2025354 PMAQI
8th Sep 2025335 PMAQI
8th Sep 2025356 PMAQI
8th Sep 2025367 PMAQI
8th Sep 2025378 PMAQI
8th Sep 2025329 PMAQI
8th Sep 20253610 PMAQI
8th Sep 20254211 PMAQI
9th Sep 20254212 AMAQI
9th Sep 2025441 AMAQI
9th Sep 2025442 AMAQI
9th Sep 2025413 AMAQI
9th Sep 2025394 AMAQI
9th Sep 2025365 AMAQI
9th Sep 2025366 AMAQI
16°C15/17°C
9th Sep 2025337 AMAQI
9th Sep 2025348 AMAQI
9th Sep 2025339 AMAQI
9th Sep 20253510 AMAQI
9th Sep 20253811 AMAQI
9th Sep 20254012 PMAQI
9th Sep 2025401 PMAQI
9th Sep 2025422 PMAQI
9th Sep 2025393 PMAQI
9th Sep 2025444 PMAQI
9th Sep 2025435 PMAQI
9th Sep 2025486 PMAQI
9th Sep 2025487 PMAQI
9th Sep 2025498 PMAQI
9th Sep 2025409 PMAQI
9th Sep 20254010 PMAQI
9th Sep 20254111 PMAQI
10th Sep 20254012 AMAQI
10th Sep 2025391 AMAQI
10th Sep 2025392 AMAQI
10th Sep 2025403 AMAQI
10th Sep 2025364 AMAQI
10th Sep 2025365 AMAQI
10th Sep 2025366 AMAQI
17°C14/20°C
10th Sep 2025397 AMAQI
10th Sep 2025348 AMAQI
10th Sep 2025329 AMAQI
10th Sep 20253210 AMAQI
10th Sep 20252911 AMAQI
10th Sep 20253212 PMAQI
10th Sep 2025311 PMAQI
10th Sep 2025322 PMAQI
10th Sep 2025363 PMAQI
10th Sep 2025424 PMAQI
10th Sep 2025415 PMAQI
10th Sep 2025536 PMAQI
10th Sep 2025487 PMAQI
10th Sep 2025488 PMAQI
10th Sep 2025389 PMAQI
10th Sep 20253810 PMAQI
10th Sep 20253611 PMAQI
11th Sep 20253612 AMAQI
11th Sep 2025391 AMAQI
11th Sep 2025382 AMAQI
11th Sep 2025423 AMAQI
11th Sep 2025424 AMAQI
11th Sep 2025395 AMAQI
11th Sep 2025396 AMAQI
17°C15/22°C
11th Sep 2025387 AMAQI
11th Sep 2025378 AMAQI
11th Sep 2025359 AMAQI
11th Sep 20253710 AMAQI
11th Sep 20254011 AMAQI
11th Sep 20253512 PMAQI
11th Sep 2025381 PMAQI
11th Sep 2025402 PMAQI
11th Sep 2025443 PMAQI
11th Sep 2025464 PMAQI
11th Sep 2025415 PMAQI
11th Sep 2025436 PMAQI
11th Sep 2025367 PMAQI
11th Sep 2025388 PMAQI
11th Sep 2025359 PMAQI
11th Sep 20253410 PMAQI
11th Sep 20253611 PMAQI
12th Sep 20253512 AMAQI
12th Sep 2025381 AMAQI
12th Sep 2025362 AMAQI
12th Sep 2025343 AMAQI
12th Sep 2025334 AMAQI
12th Sep 2025325 AMAQI
12th Sep 2025286 AMAQI
17°C15/20°C
12th Sep 2025307 AMAQI
12th Sep 2025288 AMAQI
12th Sep 2025279 AMAQI
12th Sep 20252710 AMAQI
12th Sep 20252911 AMAQI
12th Sep 20252812 PMAQI
12th Sep 2025231 PMAQI
12th Sep 2025302 PMAQI
12th Sep 2025333 PMAQI
12th Sep 2025314 PMAQI
12th Sep 2025315 PMAQI
12th Sep 2025326 PMAQI
12th Sep 2025307 PMAQI
12th Sep 2025288 PMAQI
12th Sep 2025299 PMAQI
12th Sep 20252610 PMAQI
12th Sep 20252611 PMAQI
13th Sep 20252712 AMAQI
13th Sep 2025261 AMAQI
13th Sep 2025282 AMAQI
13th Sep 2025283 AMAQI
13th Sep 2025294 AMAQI
13th Sep 2025295 AMAQI
13th Sep 2025256 AMAQI
16°C14/18°C
13th Sep 2025237 AMAQI
13th Sep 2025248 AMAQI
13th Sep 2025239 AMAQI
13th Sep 20252410 AMAQI
13th Sep 20252511 AMAQI
13th Sep 20252712 PMAQI
13th Sep 2025261 PMAQI
13th Sep 2025262 PMAQI
13th Sep 2025233 PMAQI
13th Sep 2025244 PMAQI
13th Sep 2025245 PMAQI
13th Sep 2025276 PMAQI
13th Sep 2025287 PMAQI
13th Sep 2025328 PMAQI
13th Sep 2025309 PMAQI
13th Sep 20253110 PMAQI
13th Sep 20253811 PMAQI
14th Sep 20254012 AMAQI
14th Sep 2025421 AMAQI
14th Sep 2025412 AMAQI
14th Sep 2025403 AMAQI
14th Sep 2025414 AMAQI
14th Sep 2025415 AMAQI
14th Sep 2025436 AMAQI
16°C14/18°C
14th Sep 2025407 AMAQI
14th Sep 2025338 AMAQI
14th Sep 2025349 AMAQI
14th Sep 20253510 AMAQI
14th Sep 20253111 AMAQI
14th Sep 20253212 PMAQI
14th Sep 2025351 PMAQI
14th Sep 2025362 PMAQI
14th Sep 2025333 PMAQI
14th Sep 2025284 PMAQI
14th Sep 2025255 PMAQI
14th Sep 2025226 PMAQI
14th Sep 2025217 PMAQI
14th Sep 2025188 PMAQI
14th Sep 2025399 PMAQI
14th Sep 20252810 PMAQI
14th Sep 20251411 PMAQI
15th Sep 20251412 AMAQI
15th Sep 2025171 AMAQI
15th Sep 2025222 AMAQI
15th Sep 2025243 AMAQI
15th Sep 2025254 AMAQI
15th Sep 2025225 AMAQI
15th Sep 2025196 AMAQI
15°C14/18°C
15th Sep 2025187 AMAQI
15th Sep 2025198 AMAQI
15th Sep 2025249 AMAQI
15th Sep 20253410 AMAQI
15th Sep 20253011 AMAQI
15th Sep 20252512 PMAQI
15th Sep 2025241 PMAQI
15th Sep 2025242 PMAQI
15th Sep 2025233 PMAQI
15th Sep 2025224 PMAQI
15th Sep 2025225 PMAQI
15th Sep 2025236 PMAQI
15th Sep 2025287 PMAQI
15th Sep 2025268 PMAQI
15th Sep 2025229 PMAQI
15th Sep 20252110 PMAQI
15th Sep 20252411 PMAQI
16th Sep 20252412 AMAQI
16th Sep 2025251 AMAQI
16th Sep 2025282 AMAQI
16th Sep 2025273 AMAQI
16th Sep 2025244 AMAQI
16th Sep 2025255 AMAQI
16th Sep 2025256 AMAQI
15°C13/19°C
16th Sep 2025207 AMAQI
16th Sep 2025268 AMAQI
16th Sep 2025239 AMAQI
16th Sep 20252210 AMAQI
16th Sep 20252111 AMAQI
16th Sep 20252412 PMAQI
16th Sep 2025241 PMAQI
16th Sep 2025262 PMAQI
16th Sep 2025263 PMAQI
16th Sep 2025324 PMAQI
16th Sep 2025305 PMAQI
16th Sep 2025296 PMAQI
16th Sep 2025287 PMAQI
16th Sep 2025288 PMAQI
16th Sep 2025249 PMAQI
16th Sep 20252610 PMAQI
16th Sep 20252811 PMAQI
17th Sep 20252612 AMAQI
17th Sep 2025371 AMAQI
17th Sep 2025462 AMAQI
17th Sep 2025503 AMAQI
17th Sep 2025494 AMAQI
17th Sep 2025465 AMAQI
17th Sep 2025456 AMAQI
17°C13/20°C
17th Sep 2025457 AMAQI
17th Sep 2025508 AMAQI
17th Sep 2025479 AMAQI
17th Sep 20254610 AMAQI
17th Sep 20254411 AMAQI
17th Sep 20254612 PMAQI
17th Sep 2025461 PMAQI
17th Sep 2025452 PMAQI
17th Sep 2025463 PMAQI
17th Sep 2025464 PMAQI
17th Sep 2025475 PMAQI
17th Sep 2025506 PMAQI
17th Sep 2025457 PMAQI
17th Sep 2025458 PMAQI
17th Sep 2025439 PMAQI
17th Sep 20254210 PMAQI
17th Sep 20253411 PMAQI
18th Sep 20253412 AMAQI
18th Sep 2025341 AMAQI
18th Sep 2025362 AMAQI
18th Sep 2025313 AMAQI
18th Sep 2025244 AMAQI
18th Sep 2025265 AMAQI
18th Sep 2025246 AMAQI
17°C14/18°C
18th Sep 2025247 AMAQI
18th Sep 2025258 AMAQI
18th Sep 2025269 AMAQI
18th Sep 20252410 AMAQI
18th Sep 20252311 AMAQI
18th Sep 20252612 PMAQI
18th Sep 2025251 PMAQI
18th Sep 2025262 PMAQI
18th Sep 2025273 PMAQI
18th Sep 2025294 PMAQI
18th Sep 2025295 PMAQI
18th Sep 2025296 PMAQI
18th Sep 2025307 PMAQI
18th Sep 2025318 PMAQI
18th Sep 2025279 PMAQI
18th Sep 20252610 PMAQI
18th Sep 20252711 PMAQI
19th Sep 20252512 AMAQI
19th Sep 2025241 AMAQI
19th Sep 2025252 AMAQI
19th Sep 2025253 AMAQI
19th Sep 2025254 AMAQI
19th Sep 2025265 AMAQI
19th Sep 2025286 AMAQI
16°C13/20°C
19th Sep 2025287 AMAQI
19th Sep 2025268 AMAQI
19th Sep 2025279 AMAQI
19th Sep 20252410 AMAQI
19th Sep 20252511 AMAQI
19th Sep 20252412 PMAQI
19th Sep 2025261 PMAQI
19th Sep 2025272 PMAQI
19th Sep 2025293 PMAQI
19th Sep 2025324 PMAQI
19th Sep 2025335 PMAQI
19th Sep 2025346 PMAQI
19th Sep 2025367 PMAQI
19th Sep 2025348 PMAQI
19th Sep 2025289 PMAQI
19th Sep 20252810 PMAQI
19th Sep 20252911 PMAQI
20th Sep 20252812 AMAQI
20th Sep 2025321 AMAQI
20th Sep 2025342 AMAQI
20th Sep 2025323 AMAQI
20th Sep 2025324 AMAQI
20th Sep 2025315 AMAQI
20th Sep 2025306 AMAQI
17°C14/20°C
20th Sep 2025317 AMAQI
20th Sep 2025288 AMAQI
20th Sep 2025289 AMAQI
20th Sep 20252810 AMAQI
20th Sep 20252711 AMAQI
20th Sep 20252612 PMAQI
20th Sep 2025261 PMAQI
20th Sep 2025302 PMAQI
20th Sep 2025303 PMAQI
20th Sep 2025324 PMAQI
20th Sep 2025325 PMAQI
20th Sep 2025356 PMAQI
20th Sep 2025387 PMAQI
20th Sep 2025388 PMAQI
20th Sep 2025319 PMAQI
20th Sep 20253310 PMAQI
20th Sep 20254311 PMAQI
21st Sep 20254812 AMAQI
21st Sep 2025401 AMAQI
21st Sep 2025362 AMAQI
21st Sep 2025353 AMAQI
21st Sep 2025324 AMAQI
21st Sep 2025325 AMAQI
21st Sep 2025326 AMAQI
16°C15/17°C
21st Sep 2025307 AMAQI
21st Sep 2025248 AMAQI
21st Sep 2025279 AMAQI
21st Sep 20252610 AMAQI
21st Sep 20252611 AMAQI
21st Sep 20252712 PMAQI
21st Sep 2025251 PMAQI
21st Sep 2025232 PMAQI
21st Sep 2025263 PMAQI
21st Sep 2025254 PMAQI
21st Sep 2025255 PMAQI
21st Sep 2025276 PMAQI
21st Sep 2025287 PMAQI
21st Sep 2025298 PMAQI
21st Sep 2025299 PMAQI
21st Sep 20252910 PMAQI
21st Sep 20252511 PMAQI
22nd Sep 20252512 AMAQI
22nd Sep 2025261 AMAQI
22nd Sep 2025262 AMAQI
22nd Sep 2025273 AMAQI
22nd Sep 2025274 AMAQI
22nd Sep 2025265 AMAQI
22nd Sep 2025246 AMAQI
15°C12/17°C
22nd Sep 2025217 AMAQI
22nd Sep 2025218 AMAQI
22nd Sep 2025229 AMAQI
22nd Sep 20252410 AMAQI
22nd Sep 20252411 AMAQI
22nd Sep 20252512 PMAQI
22nd Sep 2025231 PMAQI
22nd Sep 2025252 PMAQI
22nd Sep 2025293 PMAQI
22nd Sep 2025284 PMAQI
22nd Sep 2025305 PMAQI
22nd Sep 2025296 PMAQI
22nd Sep 2025297 PMAQI
22nd Sep 2025288 PMAQI
22nd Sep 2025279 PMAQI
22nd Sep 20252710 PMAQI
22nd Sep 20253011 PMAQI
23rd Sep 20252812 AMAQI
23rd Sep 2025291 AMAQI
23rd Sep 2025302 AMAQI
23rd Sep 2025303 AMAQI
23rd Sep 2025304 AMAQI
23rd Sep 2025335 AMAQI
23rd Sep 2025326 AMAQI
15°C12/17°C
23rd Sep 2025307 AMAQI
23rd Sep 2025308 AMAQI
23rd Sep 2025319 AMAQI
23rd Sep 20252810 AMAQI
23rd Sep 20252711 AMAQI
23rd Sep 20252712 PMAQI
23rd Sep 2025301 PMAQI
23rd Sep 2025322 PMAQI
23rd Sep 2025333 PMAQI
23rd Sep 2025374 PMAQI
23rd Sep 2025385 PMAQI
23rd Sep 2025366 PMAQI
23rd Sep 2025377 PMAQI
23rd Sep 2025378 PMAQI
23rd Sep 2025329 PMAQI
23rd Sep 20253110 PMAQI
23rd Sep 20253611 PMAQI
24th Sep 20253712 AMAQI
24th Sep 2025381 AMAQI
24th Sep 2025392 AMAQI
24th Sep 2025403 AMAQI
24th Sep 2025444 AMAQI
24th Sep 2025465 AMAQI
24th Sep 2025416 AMAQI
16°C13/19°C
24th Sep 2025377 AMAQI
24th Sep 2025388 AMAQI
24th Sep 2025409 AMAQI
24th Sep 20254110 AMAQI
24th Sep 20253411 AMAQI
24th Sep 20253712 PMAQI
24th Sep 2025381 PMAQI
24th Sep 2025362 PMAQI
24th Sep 2025363 PMAQI
24th Sep 2025344 PMAQI
24th Sep 2025315 PMAQI
24th Sep 2025346 PMAQI
24th Sep 2025347 PMAQI
24th Sep 2025328 PMAQI
24th Sep 2025349 PMAQI
24th Sep 20253510 PMAQI
24th Sep 20253111 PMAQI
25th Sep 20253112 AMAQI
25th Sep 2025301 AMAQI
25th Sep 2025242 AMAQI
25th Sep 2025393 AMAQI
25th Sep 2025244 AMAQI
25th Sep 2025265 AMAQI
25th Sep 2025276 AMAQI
15°C13/18°C
25th Sep 2025277 AMAQI
25th Sep 2025198 AMAQI
25th Sep 2025179 AMAQI
25th Sep 20251810 AMAQI
25th Sep 20252211 AMAQI
25th Sep 20252512 PMAQI
25th Sep 2025261 PMAQI
25th Sep 2025292 PMAQI
25th Sep 2025263 PMAQI
25th Sep 2025224 PMAQI
25th Sep 2025255 PMAQI
25th Sep 2025286 PMAQI
25th Sep 2025257 PMAQI
25th Sep 2025228 PMAQI
25th Sep 2025199 PMAQI
25th Sep 20251710 PMAQI
25th Sep 20251711 PMAQI
26th Sep 20251712 AMAQI
26th Sep 2025561 AMAQI
26th Sep 2025442 AMAQI
26th Sep 2025493 AMAQI
26th Sep 2025384 AMAQI
26th Sep 2025345 AMAQI
26th Sep 2025326 AMAQI
13°C10/17°C
26th Sep 2025217 AMAQI
26th Sep 2025208 AMAQI
26th Sep 2025209 AMAQI
26th Sep 20251910 AMAQI
26th Sep 20252011 AMAQI
26th Sep 20252012 PMAQI
26th Sep 2025201 PMAQI
26th Sep 2025302 PMAQI
26th Sep 2025373 PMAQI
26th Sep 2025324 PMAQI
26th Sep 2025335 PMAQI
26th Sep 2025366 PMAQI
26th Sep 2025427 PMAQI
26th Sep 2025408 PMAQI
26th Sep 2025419 PMAQI
26th Sep 20253410 PMAQI
26th Sep 20252911 PMAQI
27th Sep 20253012 AMAQI
27th Sep 2025241 AMAQI
27th Sep 2025212 AMAQI
27th Sep 2025223 AMAQI
27th Sep 2025184 AMAQI
27th Sep 2025175 AMAQI
27th Sep 2025176 AMAQI
13°C10/17°C
27th Sep 2025177 AMAQI
27th Sep 2025178 AMAQI
27th Sep 2025189 AMAQI
27th Sep 20251910 AMAQI
27th Sep 20251711 AMAQI
27th Sep 20251612 PMAQI
27th Sep 2025161 PMAQI
27th Sep 2025172 PMAQI
27th Sep 2025163 PMAQI
27th Sep 2025144 PMAQI
27th Sep 2025155 PMAQI
27th Sep 2025166 PMAQI
27th Sep 2025167 PMAQI
27th Sep 2025158 PMAQI
27th Sep 2025159 PMAQI
27th Sep 20251610 PMAQI
27th Sep 20251611 PMAQI
28th Sep 20252412 AMAQI
28th Sep 2025171 AMAQI
28th Sep 2025202 AMAQI
28th Sep 2025223 AMAQI
28th Sep 2025224 AMAQI
28th Sep 2025175 AMAQI
28th Sep 2025166 AMAQI
13°C12/14°C
28th Sep 2025177 AMAQI
28th Sep 2025158 AMAQI
28th Sep 2025169 AMAQI
28th Sep 20251510 AMAQI
28th Sep 20251511 AMAQI
28th Sep 20251512 PMAQI
28th Sep 2025141 PMAQI
28th Sep 2025182 PMAQI
28th Sep 2025133 PMAQI
28th Sep 2025204 PMAQI
28th Sep 2025165 PMAQI
28th Sep 2025236 PMAQI
28th Sep 2025297 PMAQI
28th Sep 2025228 PMAQI
28th Sep 2025209 PMAQI
28th Sep 20252410 PMAQI
28th Sep 20252211 PMAQI
29th Sep 20252612 AMAQI
29th Sep 2025261 AMAQI
29th Sep 2025232 AMAQI
29th Sep 2025203 AMAQI
29th Sep 2025184 AMAQI
29th Sep 2025145 AMAQI
29th Sep 2025196 AMAQI
13°C11/15°C
29th Sep 2025247 AMAQI
29th Sep 2025198 AMAQI
29th Sep 2025199 AMAQI
29th Sep 20251210 AMAQI
29th Sep 20251111 AMAQI
29th Sep 20251412 PMAQI
29th Sep 2025121 PMAQI
29th Sep 202592 PMAQI
29th Sep 2025123 PMAQI
29th Sep 2025104 PMAQI
29th Sep 2025125 PMAQI
29th Sep 2025126 PMAQI
29th Sep 2025117 PMAQI
29th Sep 2025138 PMAQI
29th Sep 2025119 PMAQI
29th Sep 20251310 PMAQI
29th Sep 2025911 PMAQI
30th Sep 20251012 AMAQI
30th Sep 2025171 AMAQI
30th Sep 2025192 AMAQI
30th Sep 2025163 AMAQI
30th Sep 2025194 AMAQI
30th Sep 2025245 AMAQI
30th Sep 2025226 AMAQI
14°C13/17°C
30th Sep 2025257 AMAQI
30th Sep 2025228 AMAQI
30th Sep 2025179 AMAQI
30th Sep 20252010 AMAQI
30th Sep 20251911 AMAQI
30th Sep 20251812 PMAQI
30th Sep 2025181 PMAQI
30th Sep 2025132 PMAQI
30th Sep 202593 PMAQI
30th Sep 2025144 PMAQI
30th Sep 2025155 PMAQI
30th Sep 2025136 PMAQI
30th Sep 2025157 PMAQI
30th Sep 2025168 PMAQI
30th Sep 2025169 PMAQI
30th Sep 20251810 PMAQI
30th Sep 20251711 PMAQI
1st Oct 20252112 AMAQI
1st Oct 2025211 AMAQI
1st Oct 2025112 AMAQI
1st Oct 2025113 AMAQI
1st Oct 2025164 AMAQI
1st Oct 2025185 AMAQI
1st Oct 2025166 AMAQI
14°C12/16°C
1st Oct 2025147 AMAQI
1st Oct 2025148 AMAQI
1st Oct 2025199 AMAQI
1st Oct 20253010 AMAQI
1st Oct 20254511 AMAQI
1st Oct 20254112 PMAQI
1st Oct 2025381 PMAQI
1st Oct 2025422 PMAQI
1st Oct 2025363 PMAQI
1st Oct 2025374 PMAQI
1st Oct 2025185 PMAQI
1st Oct 2025306 PMAQI
1st Oct 2025387 PMAQI
1st Oct 2025468 PMAQI
1st Oct 2025469 PMAQI
1st Oct 20254210 PMAQI
1st Oct 20254111 PMAQI
2nd Oct 20254712 AMAQI
2nd Oct 2025191 AMAQI
2nd Oct 2025112 AMAQI
2nd Oct 2025183 AMAQI
2nd Oct 2025304 AMAQI
2nd Oct 2025135 AMAQI
2nd Oct 2025126 AMAQI
13°C11/15°C
2nd Oct 2025197 AMAQI
2nd Oct 2025408 AMAQI
2nd Oct 2025529 AMAQI
2nd Oct 20255010 AMAQI
2nd Oct 20254411 AMAQI
2nd Oct 20254612 PMAQI
2nd Oct 2025451 PMAQI
2nd Oct 2025532 PMAQI
2nd Oct 2025463 PMAQI
2nd Oct 2025444 PMAQI
2nd Oct 2025455 PMAQI
2nd Oct 2025506 PMAQI
2nd Oct 2025437 PMAQI
2nd Oct 2025428 PMAQI
2nd Oct 2025349 PMAQI
2nd Oct 20253910 PMAQI
2nd Oct 20254511 PMAQI
3rd Oct 20255312 AMAQI
3rd Oct 2025571 AMAQI
3rd Oct 2025532 AMAQI
3rd Oct 2025453 AMAQI
3rd Oct 2025384 AMAQI
3rd Oct 2025465 AMAQI
3rd Oct 2025376 AMAQI
13°C12/14°C
3rd Oct 2025397 AMAQI
3rd Oct 2025438 AMAQI
3rd Oct 2025329 AMAQI
3rd Oct 20252310 AMAQI
3rd Oct 20253311 AMAQI
3rd Oct 20252312 PMAQI
3rd Oct 2025331 PMAQI
3rd Oct 2025222 PMAQI
3rd Oct 2025193 PMAQI
3rd Oct 2025264 PMAQI
3rd Oct 2025385 PMAQI
3rd Oct 2025396 PMAQI
3rd Oct 2025417 PMAQI
3rd Oct 2025458 PMAQI
3rd Oct 2025509 PMAQI
3rd Oct 20255510 PMAQI
3rd Oct 20255811 PMAQI
4th Oct 20256112 AMAQI
4th Oct 2025641 AMAQI
4th Oct 2025612 AMAQI
4th Oct 2025533 AMAQI
4th Oct 2025494 AMAQI
4th Oct 2025445 AMAQI
4th Oct 2025456 AMAQI
12°C10/14°C
4th Oct 2025417 AMAQI
4th Oct 2025418 AMAQI
4th Oct 2025189 AMAQI
4th Oct 20251910 AMAQI
4th Oct 20251911 AMAQI
4th Oct 20251912 PMAQI
4th Oct 2025211 PMAQI
4th Oct 2025162 PMAQI
4th Oct 2025133 PMAQI
4th Oct 2025134 PMAQI
4th Oct 2025125 PMAQI
4th Oct 2025136 PMAQI
4th Oct 2025227 PMAQI
4th Oct 2025408 PMAQI
4th Oct 2025439 PMAQI
4th Oct 20255310 PMAQI
4th Oct 20255811 PMAQI
5th Oct 20256012 AMAQI
5th Oct 2025611 AMAQI
5th Oct 2025592 AMAQI
5th Oct 2025533 AMAQI
5th Oct 2025324 AMAQI
5th Oct 2025145 AMAQI
5th Oct 2025146 AMAQI
13°C10/16°C
7 AM
1 PM
7 PM
1 AM
6 AM
--°C/°C
Day time
Avg. Highest Time
4 PM - 7 PM
35AQI
4 hours / Day
120 hours / Month
Avg. Lowest Time
9 AM - 11 AM
31AQI
3 hours / Day
90 hours / Month
In the last 30 days, during the daytime, the highest AQI was between 4 PM to 7 PM (Avg. 35), while the lowest AQI was between 9 AM to 11 AM (Avg. 31).
Night time
Avg. Highest Time
12 AM - 3 AM
36AQI
4 hours / Day
120 hours / Month
Avg. Lowest Time
6 AM
32AQI
1 hours / Day
30 hours / Month
In the last 30 days, during the daytime, the highest AQI was between 12 AM to 3 AM (Avg. 36), while the lowest AQI was between 6 AM to 6 AM (Avg. 32).
2025 Days Vs Air Quality
Courtenay, British Columbia, Canada
2025
90%
248
10%
29
Total number of days with different AQI categories in last 278 days in 2025 (87 days remaining)
Good
248 DaysModerate
29 DaysPoor
0 DaysUnhealthy
0 DaysSevere
0 DaysHazardous
0 DaysUnder WHO’s Safe Air Quality Limits: 90%
Health Risk Level:
Very Low
In 2025, 90% of 278 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
Courtenay, British Columbia, 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
57AQI
57AQI
2nd January 2025
59AQI
59AQI
3rd January 2025
54AQI
54AQI
4th January 2025
49AQI
49AQI
5th January 2025
46AQI
46AQI
6th January 2025
42AQI
42AQI
7th January 2025
32AQI
32AQI
8th January 2025
56AQI
56AQI
9th January 2025
48AQI
48AQI
10th January 2025
54AQI
54AQI
11th January 2025
41AQI
41AQI
12th January 2025
53AQI
53AQI
13th January 2025
75AQI
75AQI
14th January 2025
62AQI
62AQI
15th January 2025
58AQI
58AQI
16th January 2025
36AQI
36AQI
17th January 2025
32AQI
32AQI
18th January 2025
46AQI
46AQI
19th January 2025
50AQI
50AQI
20th January 2025
55AQI
55AQI
21st January 2025
51AQI
51AQI
22nd January 2025
53AQI
53AQI
23rd January 2025
54AQI
54AQI
24th January 2025
42AQI
42AQI
25th January 2025
52AQI
52AQI
26th January 2025
53AQI
53AQI
27th January 2025
53AQI
53AQI
28th January 2025
49AQI
49AQI
29th January 2025
49AQI
49AQI
30th January 2025
54AQI
54AQI
31st January 2025
28AQI
28AQI
1st February 2025
30AQI
30AQI
2nd February 2025
33AQI
33AQI
3rd February 2025
24AQI
24AQI
4th February 2025
26AQI
26AQI
5th February 2025
40AQI
40AQI
6th February 2025
40AQI
40AQI
7th February 2025
43AQI
43AQI
8th February 2025
55AQI
55AQI
9th February 2025
49AQI
49AQI
10th February 2025
47AQI
47AQI
11th February 2025
41AQI
41AQI
12th February 2025
50AQI
50AQI
13th February 2025
50AQI
50AQI
14th February 2025
51AQI
51AQI
15th February 2025
28AQI
28AQI
16th February 2025
28AQI
28AQI
17th February 2025
37AQI
37AQI
18th February 2025
45AQI
45AQI
19th February 2025
21AQI
21AQI
20th February 2025
28AQI
28AQI
21st February 2025
20AQI
20AQI
22nd February 2025
24AQI
24AQI
23rd February 2025
21AQI
21AQI
24th February 2025
23AQI
23AQI
25th February 2025
20AQI
20AQI
26th February 2025
24AQI
24AQI
27th February 2025
28AQI
28AQI
28th February 2025
28AQI
28AQI
1st March 2025
38AQI
38AQI
2nd March 2025
35AQI
35AQI
3rd March 2025
28AQI
28AQI
4th March 2025
24AQI
24AQI
5th March 2025
25AQI
25AQI
6th March 2025
30AQI
30AQI
7th March 2025
35AQI
35AQI
8th March 2025
21AQI
21AQI
9th March 2025
36AQI
36AQI
10th March 2025
39AQI
39AQI
11th March 2025
43AQI
43AQI
12th March 2025
27AQI
27AQI
13th March 2025
28AQI
28AQI
14th March 2025
31AQI
31AQI
15th March 2025
25AQI
25AQI
16th March 2025
27AQI
27AQI
17th March 2025
26AQI
26AQI
18th March 2025
31AQI
31AQI
19th March 2025
24AQI
24AQI
20th March 2025
23AQI
23AQI
21st March 2025
21AQI
21AQI
22nd March 2025
21AQI
21AQI
23rd March 2025
19AQI
19AQI
24th March 2025
25AQI
25AQI
25th March 2025
22AQI
22AQI
26th March 2025
20AQI
20AQI
27th March 2025
18AQI
18AQI
28th March 2025
19AQI
19AQI
29th March 2025
18AQI
18AQI
30th March 2025
29AQI
29AQI
31st March 2025
22AQI
22AQI
1st April 2025
22AQI
22AQI
2nd April 2025
25AQI
25AQI
3rd April 2025
28AQI
28AQI
4th April 2025
32AQI
32AQI
5th April 2025
38AQI
38AQI
6th April 2025
29AQI
29AQI
7th April 2025
16AQI
16AQI
8th April 2025
14AQI
14AQI
9th April 2025
19AQI
19AQI
10th April 2025
21AQI
21AQI
11th April 2025
19AQI
19AQI
12th April 2025
23AQI
23AQI
13th April 2025
24AQI
24AQI
14th April 2025
27AQI
27AQI
15th April 2025
19AQI
19AQI
16th April 2025
22AQI
22AQI
17th April 2025
19AQI
19AQI
18th April 2025
23AQI
23AQI
19th April 2025
19AQI
19AQI
20th April 2025
19AQI
19AQI
21st April 2025
18AQI
18AQI
22nd April 2025
23AQI
23AQI
23rd April 2025
21AQI
21AQI
24th April 2025
28AQI
28AQI
25th April 2025
35AQI
35AQI
26th April 2025
27AQI
27AQI
27th April 2025
27AQI
27AQI
28th April 2025
22AQI
22AQI
29th April 2025
20AQI
20AQI
30th April 2025
20AQI
20AQI
1st May 2025
28AQI
28AQI
2nd May 2025
30AQI
30AQI
3rd May 2025
17AQI
17AQI
4th May 2025
18AQI
18AQI
5th May 2025
21AQI
21AQI
6th May 2025
24AQI
24AQI
7th May 2025
22AQI
22AQI
8th May 2025
18AQI
18AQI
9th May 2025
22AQI
22AQI
10th May 2025
24AQI
24AQI
11th May 2025
19AQI
19AQI
12th May 2025
18AQI
18AQI
13th May 2025
23AQI
23AQI
14th May 2025
20AQI
20AQI
15th May 2025
22AQI
22AQI
16th May 2025
15AQI
15AQI
17th May 2025
16AQI
16AQI
18th May 2025
14AQI
14AQI
19th May 2025
16AQI
16AQI
20th May 2025
12AQI
12AQI
21st May 2025
15AQI
15AQI
22nd May 2025
17AQI
17AQI
23rd May 2025
16AQI
16AQI
24th May 2025
18AQI
18AQI
25th May 2025
20AQI
20AQI
26th May 2025
18AQI
18AQI
27th May 2025
16AQI
16AQI
28th May 2025
21AQI
21AQI
29th May 2025
16AQI
16AQI
30th May 2025
18AQI
18AQI
31st May 2025
18AQI
18AQI
1st June 2025
17AQI
17AQI
2nd June 2025
21AQI
21AQI
3rd June 2025
18AQI
18AQI
4th June 2025
16AQI
16AQI
5th June 2025
17AQI
17AQI
6th June 2025
15AQI
15AQI
7th June 2025
17AQI
17AQI
8th June 2025
19AQI
19AQI
9th June 2025
19AQI
19AQI
10th June 2025
25AQI
25AQI
11th June 2025
28AQI
28AQI
12th June 2025
30AQI
30AQI
13th June 2025
24AQI
24AQI
14th June 2025
20AQI
20AQI
15th June 2025
21AQI
21AQI
16th June 2025
20AQI
20AQI
17th June 2025
20AQI
20AQI
18th June 2025
17AQI
17AQI
19th June 2025
17AQI
17AQI
20th June 2025
19AQI
19AQI
21st June 2025
19AQI
19AQI
22nd June 2025
19AQI
19AQI
23rd June 2025
21AQI
21AQI
24th June 2025
28AQI
28AQI
25th June 2025
30AQI
30AQI
26th June 2025
20AQI
20AQI
27th June 2025
16AQI
16AQI
28th June 2025
14AQI
14AQI
29th June 2025
20AQI
20AQI
30th June 2025
22AQI
22AQI
1st July 2025
22AQI
22AQI
2nd July 2025
18AQI
18AQI
3rd July 2025
18AQI
18AQI
4th July 2025
19AQI
19AQI
5th July 2025
20AQI
20AQI
6th July 2025
21AQI
21AQI
7th July 2025
22AQI
22AQI
8th July 2025
20AQI
20AQI
9th July 2025
15AQI
15AQI
10th July 2025
18AQI
18AQI
11th July 2025
20AQI
20AQI
12th July 2025
19AQI
19AQI
13th July 2025
19AQI
19AQI
14th July 2025
17AQI
17AQI
15th July 2025
23AQI
23AQI
16th July 2025
32AQI
32AQI
17th July 2025
35AQI
35AQI
18th July 2025
36AQI
36AQI
19th July 2025
30AQI
30AQI
20th July 2025
28AQI
28AQI
21st July 2025
28AQI
28AQI
22nd July 2025
27AQI
27AQI
23rd July 2025
27AQI
27AQI
24th July 2025
28AQI
28AQI
25th July 2025
21AQI
21AQI
26th July 2025
23AQI
23AQI
27th July 2025
27AQI
27AQI
28th July 2025
30AQI
30AQI
29th July 2025
33AQI
33AQI
30th July 2025
36AQI
36AQI
31st July 2025
31AQI
31AQI
1st August 2025
24AQI
24AQI
2nd August 2025
24AQI
24AQI
3rd August 2025
26AQI
26AQI
4th August 2025
36AQI
36AQI
5th August 2025
37AQI
37AQI
6th August 2025
38AQI
38AQI
7th August 2025
18AQI
18AQI
8th August 2025
21AQI
21AQI
9th August 2025
27AQI
27AQI
10th August 2025
30AQI
30AQI
11th August 2025
24AQI
24AQI
12th August 2025
26AQI
26AQI
13th August 2025
21AQI
21AQI
14th August 2025
26AQI
26AQI
15th August 2025
30AQI
30AQI
16th August 2025
13AQI
13AQI
17th August 2025
20AQI
20AQI
18th August 2025
25AQI
25AQI
19th August 2025
28AQI
28AQI
20th August 2025
27AQI
27AQI
21st August 2025
31AQI
31AQI
22nd August 2025
27AQI
27AQI
23rd August 2025
31AQI
31AQI
24th August 2025
46AQI
46AQI
25th August 2025
51AQI
51AQI
26th August 2025
56AQI
56AQI
27th August 2025
56AQI
56AQI
28th August 2025
55AQI
55AQI
29th August 2025
56AQI
56AQI
30th August 2025
49AQI
49AQI
31st August 2025
52AQI
52AQI
1st September 2025
49AQI
49AQI
2nd September 2025
46AQI
46AQI
3rd September 2025
63AQI
63AQI
4th September 2025
69AQI
69AQI
5th September 2025
76AQI
76AQI
6th September 2025
72AQI
72AQI
7th September 2025
48AQI
48AQI
8th September 2025
34AQI
34AQI
9th September 2025
41AQI
41AQI
10th September 2025
39AQI
39AQI
11th September 2025
38AQI
38AQI
12th September 2025
31AQI
31AQI
13th September 2025
28AQI
28AQI
14th September 2025
33AQI
33AQI
15th September 2025
22AQI
22AQI
16th September 2025
25AQI
25AQI
17th September 2025
43AQI
43AQI
18th September 2025
29AQI
29AQI
19th September 2025
28AQI
28AQI
20th September 2025
31AQI
31AQI
21st September 2025
31AQI
31AQI
22nd September 2025
26AQI
26AQI
23rd September 2025
32AQI
32AQI
24th September 2025
37AQI
37AQI
25th September 2025
25AQI
25AQI
26th September 2025
30AQI
30AQI
27th September 2025
20AQI
20AQI
28th September 2025
20AQI
20AQI
29th September 2025
16AQI
16AQI
30th September 2025
16AQI
16AQI
1st October 2025
25AQI
25AQI
2nd October 2025
36AQI
36AQI
3rd October 2025
42AQI
42AQI
4th October 2025
39AQI
39AQI
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
50AQI
34AQI
27AQI
23AQI
19AQI
20AQI
25AQI
33AQI
37AQI
36AQI
No. of days
Jan.Feb.Mar.Apr.MayJun.Jul.Aug.Sep.Oct.Nov.Dec.Total Days
202530AQI
14
17
26
2
31
30
31
30
31
25
6
26
4
4
248
29
Highest AQI recorded in
January50AQI
Lowest AQI recorded in
May19AQI
202424AQI
24
7
27
1
31
30
31
28
31
31
30
31
27
3
20
11
341
22
Highest AQI recorded in
December47AQI
Lowest AQI recorded in
June14AQI
202326AQI
29
2
28
29
2
30
30
1
30
31
27
4
30
27
4
25
4
31
347
17
Highest AQI recorded in
November34AQI
Lowest AQI recorded in
July16AQI
202229AQI
18
4
15
7
29
1
17
31
30
20
2
26
3
27
4
21
9
22
9
258
37
Highest AQI recorded in
February43AQI
Lowest AQI recorded in
June16AQI
202129AQI
17
13
23
5
25
5
30
31
28
2
31
28
2
30
29
2
26
4
21
10
319
43
Highest AQI recorded in
December42AQI
Lowest AQI recorded in
May17AQI
202031AQI
12
1
20
18
30
31
31
21
3
3
2
1
23
7
22
8
20
11
228
30
3
2
1
Highest AQI recorded in
September57AQI
Lowest AQI recorded in
June11AQI
Most & Least Polluted Years Over the Last 6 Years
Most Polluted Year Recorded
2020(Avg.)
31AQILeast Polluted Year Recorded
2024(Avg.)
24AQICourtenay's annual 2025 AQI (30) shows an average percentage change of 8.2% (worsened AQI) compared to previous years: 2020 (31), 2021 (29), 2022 (29), 2023 (26), 2024 (24).
