Saint John, New Brunswick, 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+
November Air Quality Analysis
Saint John, New Brunswick, Canada
2021
2022
2023
2024
2025
AQI
.
Days
AQI Trends: Highest and Lowest
Highest AQI recorded on
6th Nov 2022
50AQILowest AQI recorded on
9th Nov 2024
6AQISame Day Analysis (4th November ):
On this day, AQI across the 5 years varied significantly: 2025 ranks 3rd highest AQI at 24 of Good air quality, showing improvement over 2023 and 2022 on the same day.
Download 2024 Annual Data
World Air Quality Report
Day & Night AQI Trend: 4th Nov - 5th Nov 2025
Saint John, New Brunswick, Canada
AQI
Day
Night
.
6 AM4th Nov 2025
5 PM
5 AM5th Nov 2025
Day time
Avg. Highest Time
4PM4th Nov
43AQI
Avg. Lowest Time
8AM4th Nov
12AQI
Night time
Avg. Highest Time
5PM4th Nov
41AQI
Avg. Lowest Time
1AM5th Nov
10AQI
In the last 24 hours,
Saint John's AQI reached its highest point of 43 at 4 PM during the Day, while the lowest point, 10, was recorded at 1 AM during the Night between 4th Nov and 5th Nov 2025.
Day & Night AQI Trend : Oct - Nov 2025
Saint John, New Brunswick, Canada
OctNov
06th - 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 - 03rd03rd - 04th04th - 05th05th
Day
Night
6th Oct 2025396 AMAQI
6th Oct 2025427 AMAQI
6th Oct 2025418 AMAQI
6th Oct 2025409 AMAQI
6th Oct 20253910 AMAQI
6th Oct 20254411 AMAQI
6th Oct 20254712 PMAQI
6th Oct 2025501 PMAQI
6th Oct 2025512 PMAQI
15°C13/21°C
7th Oct 2025457 AMAQI
7th Oct 2025538 AMAQI
7th Oct 2025569 AMAQI
7th Oct 20255510 AMAQI
7th Oct 20255411 AMAQI
7th Oct 20254812 PMAQI
7th Oct 2025461 PMAQI
7th Oct 2025462 PMAQI
7th Oct 2025483 PMAQI
7th Oct 2025544 PMAQI
7th Oct 2025495 PMAQI
7th Oct 2025346 PMAQI
7th Oct 2025217 PMAQI
7th Oct 2025178 PMAQI
7th Oct 2025179 PMAQI
7th Oct 20251710 PMAQI
7th Oct 20251811 PMAQI
8th Oct 20252712 AMAQI
8th Oct 2025431 AMAQI
8th Oct 2025522 AMAQI
8th Oct 2025553 AMAQI
8th Oct 2025564 AMAQI
8th Oct 2025565 AMAQI
14°C13/17°C
8th Oct 2025566 AMAQI
8th Oct 2025557 AMAQI
8th Oct 2025568 AMAQI
8th Oct 2025579 AMAQI
8th Oct 20255710 AMAQI
8th Oct 20255811 AMAQI
8th Oct 20255712 PMAQI
8th Oct 2025571 PMAQI
8th Oct 2025572 PMAQI
8th Oct 2025553 PMAQI
8th Oct 2025494 PMAQI
8th Oct 2025465 PMAQI
8th Oct 2025376 PMAQI
8th Oct 2025277 PMAQI
8th Oct 2025238 PMAQI
8th Oct 2025239 PMAQI
8th Oct 20252310 PMAQI
8th Oct 20252311 PMAQI
9th Oct 20252412 AMAQI
9th Oct 2025241 AMAQI
9th Oct 2025252 AMAQI
9th Oct 2025243 AMAQI
9th Oct 2025244 AMAQI
9th Oct 2025235 AMAQI
14°C9/15°C
9th Oct 2025366 AMAQI
9th Oct 2025527 AMAQI
9th Oct 2025578 AMAQI
9th Oct 2025589 AMAQI
9th Oct 20255510 AMAQI
9th Oct 20254111 AMAQI
9th Oct 20252712 PMAQI
9th Oct 2025251 PMAQI
9th Oct 2025252 PMAQI
9th Oct 2025283 PMAQI
9th Oct 2025274 PMAQI
9th Oct 2025295 PMAQI
9th Oct 2025286 PMAQI
9th Oct 2025327 PMAQI
9th Oct 2025378 PMAQI
9th Oct 2025409 PMAQI
9th Oct 20254810 PMAQI
9th Oct 20255711 PMAQI
10th Oct 20255612 AMAQI
10th Oct 2025531 AMAQI
10th Oct 2025522 AMAQI
10th Oct 2025413 AMAQI
10th Oct 2025324 AMAQI
10th Oct 2025305 AMAQI
9°C6/12°C
10th Oct 2025256 AMAQI
10th Oct 2025237 AMAQI
10th Oct 2025308 AMAQI
10th Oct 2025379 AMAQI
10th Oct 20254010 AMAQI
10th Oct 20254611 AMAQI
10th Oct 20254012 PMAQI
10th Oct 2025291 PMAQI
10th Oct 2025262 PMAQI
10th Oct 2025263 PMAQI
10th Oct 2025254 PMAQI
10th Oct 2025285 PMAQI
10th Oct 2025286 PMAQI
10th Oct 2025267 PMAQI
10th Oct 2025248 PMAQI
10th Oct 2025239 PMAQI
10th Oct 20252710 PMAQI
10th Oct 20253511 PMAQI
11th Oct 20253712 AMAQI
11th Oct 2025291 AMAQI
11th Oct 2025332 AMAQI
11th Oct 2025443 AMAQI
11th Oct 2025414 AMAQI
11th Oct 2025325 AMAQI
9°C4/14°C
11th Oct 2025356 AMAQI
11th Oct 2025387 AMAQI
11th Oct 2025388 AMAQI
11th Oct 2025339 AMAQI
11th Oct 20252810 AMAQI
11th Oct 20252111 AMAQI
11th Oct 20251812 PMAQI
11th Oct 2025201 PMAQI
11th Oct 2025182 PMAQI
11th Oct 2025143 PMAQI
11th Oct 2025144 PMAQI
11th Oct 2025155 PMAQI
11th Oct 2025226 PMAQI
11th Oct 2025227 PMAQI
11th Oct 2025198 PMAQI
11th Oct 2025179 PMAQI
11th Oct 20252610 PMAQI
11th Oct 20253911 PMAQI
12th Oct 20254312 AMAQI
12th Oct 2025431 AMAQI
12th Oct 2025442 AMAQI
12th Oct 2025453 AMAQI
12th Oct 2025414 AMAQI
12th Oct 2025405 AMAQI
12°C9/16°C
12th Oct 2025396 AMAQI
12th Oct 2025327 AMAQI
12th Oct 2025288 AMAQI
12th Oct 2025279 AMAQI
12th Oct 20252510 AMAQI
12th Oct 20252511 AMAQI
12th Oct 20252412 PMAQI
12th Oct 2025251 PMAQI
12th Oct 2025252 PMAQI
12th Oct 2025253 PMAQI
12th Oct 2025274 PMAQI
12th Oct 2025265 PMAQI
12th Oct 2025246 PMAQI
12th Oct 2025267 PMAQI
12th Oct 2025268 PMAQI
12th Oct 2025269 PMAQI
12th Oct 20252510 PMAQI
12th Oct 20252511 PMAQI
13th Oct 20252512 AMAQI
13th Oct 2025251 AMAQI
13th Oct 2025302 AMAQI
13th Oct 2025313 AMAQI
13th Oct 2025264 AMAQI
13th Oct 2025255 AMAQI
12°C9/14°C
13th Oct 2025256 AMAQI
13th Oct 2025257 AMAQI
13th Oct 2025268 AMAQI
13th Oct 2025269 AMAQI
13th Oct 20252710 AMAQI
13th Oct 20252711 AMAQI
13th Oct 20252712 PMAQI
13th Oct 2025281 PMAQI
13th Oct 2025282 PMAQI
13th Oct 2025303 PMAQI
13th Oct 2025284 PMAQI
13th Oct 2025315 PMAQI
13th Oct 2025356 PMAQI
13th Oct 2025347 PMAQI
13th Oct 2025308 PMAQI
13th Oct 2025289 PMAQI
13th Oct 20252710 PMAQI
13th Oct 20252511 PMAQI
14th Oct 20252512 AMAQI
14th Oct 2025261 AMAQI
14th Oct 2025272 AMAQI
14th Oct 2025273 AMAQI
14th Oct 2025274 AMAQI
14th Oct 2025255 AMAQI
11°C9/14°C
14th Oct 2025266 AMAQI
14th Oct 2025267 AMAQI
14th Oct 2025278 AMAQI
14th Oct 2025269 AMAQI
14th Oct 20252610 AMAQI
14th Oct 20252711 AMAQI
14th Oct 20252612 PMAQI
14th Oct 2025281 PMAQI
14th Oct 2025292 PMAQI
14th Oct 2025243 PMAQI
14th Oct 2025234 PMAQI
14th Oct 2025295 PMAQI
14th Oct 2025366 PMAQI
14th Oct 2025407 PMAQI
14th Oct 2025488 PMAQI
14th Oct 2025559 PMAQI
14th Oct 20255010 PMAQI
14th Oct 20253611 PMAQI
15th Oct 20252712 AMAQI
15th Oct 2025261 AMAQI
15th Oct 2025272 AMAQI
15th Oct 2025273 AMAQI
15th Oct 2025284 AMAQI
15th Oct 2025265 AMAQI
12°C10/15°C
15th Oct 2025256 AMAQI
15th Oct 2025247 AMAQI
15th Oct 2025248 AMAQI
15th Oct 2025249 AMAQI
15th Oct 20251810 AMAQI
15th Oct 20252411 AMAQI
15th Oct 20252712 PMAQI
15th Oct 2025311 PMAQI
15th Oct 2025342 PMAQI
15th Oct 2025343 PMAQI
15th Oct 2025414 PMAQI
15th Oct 2025445 PMAQI
15th Oct 2025356 PMAQI
15th Oct 2025307 PMAQI
15th Oct 2025278 PMAQI
15th Oct 2025279 PMAQI
15th Oct 20252510 PMAQI
15th Oct 20252711 PMAQI
16th Oct 20252612 AMAQI
16th Oct 2025291 AMAQI
16th Oct 2025302 AMAQI
16th Oct 2025303 AMAQI
16th Oct 2025304 AMAQI
16th Oct 2025305 AMAQI
11°C9/14°C
16th Oct 2025296 AMAQI
16th Oct 2025277 AMAQI
16th Oct 2025278 AMAQI
16th Oct 2025279 AMAQI
16th Oct 20252610 AMAQI
16th Oct 20252611 AMAQI
16th Oct 20252812 PMAQI
16th Oct 2025311 PMAQI
16th Oct 2025292 PMAQI
16th Oct 2025273 PMAQI
16th Oct 2025274 PMAQI
16th Oct 2025275 PMAQI
16th Oct 2025276 PMAQI
16th Oct 2025297 PMAQI
16th Oct 2025288 PMAQI
16th Oct 2025289 PMAQI
16th Oct 20252910 PMAQI
16th Oct 20252811 PMAQI
17th Oct 20252612 AMAQI
17th Oct 2025301 AMAQI
17th Oct 2025322 AMAQI
17th Oct 2025273 AMAQI
17th Oct 2025274 AMAQI
17th Oct 2025275 AMAQI
9°C8/11°C
17th Oct 2025266 AMAQI
17th Oct 2025257 AMAQI
17th Oct 2025268 AMAQI
17th Oct 2025269 AMAQI
17th Oct 20252610 AMAQI
17th Oct 20252611 AMAQI
17th Oct 20252612 PMAQI
17th Oct 2025281 PMAQI
17th Oct 2025292 PMAQI
17th Oct 2025283 PMAQI
17th Oct 2025284 PMAQI
17th Oct 2025275 PMAQI
17th Oct 2025266 PMAQI
17th Oct 2025267 PMAQI
17th Oct 2025258 PMAQI
17th Oct 2025249 PMAQI
17th Oct 20252410 PMAQI
17th Oct 20252411 PMAQI
18th Oct 20252812 AMAQI
18th Oct 2025281 AMAQI
18th Oct 2025252 AMAQI
18th Oct 2025273 AMAQI
18th Oct 2025274 AMAQI
18th Oct 2025275 AMAQI
11°C10/13°C
18th Oct 2025266 AMAQI
18th Oct 2025257 AMAQI
18th Oct 2025258 AMAQI
18th Oct 2025289 AMAQI
18th Oct 20252710 AMAQI
18th Oct 20252611 AMAQI
18th Oct 20253212 PMAQI
18th Oct 2025331 PMAQI
18th Oct 2025332 PMAQI
18th Oct 2025343 PMAQI
18th Oct 2025304 PMAQI
18th Oct 2025275 PMAQI
18th Oct 2025286 PMAQI
18th Oct 2025297 PMAQI
18th Oct 2025298 PMAQI
18th Oct 2025399 PMAQI
18th Oct 20254810 PMAQI
18th Oct 20255011 PMAQI
19th Oct 20253612 AMAQI
19th Oct 2025231 AMAQI
19th Oct 2025232 AMAQI
19th Oct 2025233 AMAQI
19th Oct 2025224 AMAQI
19th Oct 2025215 AMAQI
11°C10/14°C
19th Oct 2025226 AMAQI
19th Oct 2025227 AMAQI
19th Oct 2025228 AMAQI
19th Oct 2025229 AMAQI
19th Oct 20252310 AMAQI
19th Oct 20252411 AMAQI
19th Oct 20252512 PMAQI
19th Oct 2025261 PMAQI
19th Oct 2025282 PMAQI
19th Oct 2025263 PMAQI
19th Oct 2025244 PMAQI
19th Oct 2025245 PMAQI
19th Oct 2025266 PMAQI
19th Oct 2025267 PMAQI
19th Oct 2025248 PMAQI
19th Oct 2025199 PMAQI
19th Oct 20251810 PMAQI
19th Oct 20252111 PMAQI
20th Oct 20252312 AMAQI
20th Oct 2025221 AMAQI
20th Oct 2025232 AMAQI
20th Oct 2025233 AMAQI
20th Oct 2025234 AMAQI
20th Oct 2025225 AMAQI
10°C7/13°C
20th Oct 2025226 AMAQI
20th Oct 2025227 AMAQI
20th Oct 2025238 AMAQI
20th Oct 2025239 AMAQI
20th Oct 20252410 AMAQI
20th Oct 20252311 AMAQI
20th Oct 20252412 PMAQI
20th Oct 2025251 PMAQI
20th Oct 2025252 PMAQI
20th Oct 2025253 PMAQI
20th Oct 2025264 PMAQI
20th Oct 2025255 PMAQI
20th Oct 2025326 PMAQI
20th Oct 2025317 PMAQI
20th Oct 2025288 PMAQI
20th Oct 2025279 PMAQI
20th Oct 20252710 PMAQI
20th Oct 20252711 PMAQI
21st Oct 20252612 AMAQI
21st Oct 2025261 AMAQI
21st Oct 2025252 AMAQI
21st Oct 2025243 AMAQI
21st Oct 2025244 AMAQI
21st Oct 2025245 AMAQI
12°C9/14°C
21st Oct 2025246 AMAQI
21st Oct 2025257 AMAQI
21st Oct 2025258 AMAQI
21st Oct 2025259 AMAQI
21st Oct 20252410 AMAQI
21st Oct 20252211 AMAQI
21st Oct 20252312 PMAQI
21st Oct 2025271 PMAQI
21st Oct 2025302 PMAQI
21st Oct 2025313 PMAQI
21st Oct 2025314 PMAQI
21st Oct 2025355 PMAQI
21st Oct 2025386 PMAQI
21st Oct 2025397 PMAQI
21st Oct 2025398 PMAQI
21st Oct 2025399 PMAQI
21st Oct 20253810 PMAQI
21st Oct 20253711 PMAQI
22nd Oct 20253712 AMAQI
22nd Oct 2025351 AMAQI
22nd Oct 2025332 AMAQI
22nd Oct 2025343 AMAQI
22nd Oct 2025344 AMAQI
22nd Oct 2025335 AMAQI
12°C11/13°C
22nd Oct 2025306 AMAQI
22nd Oct 2025297 AMAQI
22nd Oct 2025318 AMAQI
22nd Oct 2025339 AMAQI
22nd Oct 20253410 AMAQI
22nd Oct 20253311 AMAQI
22nd Oct 20253212 PMAQI
22nd Oct 2025311 PMAQI
22nd Oct 2025282 PMAQI
22nd Oct 2025243 PMAQI
22nd Oct 2025244 PMAQI
22nd Oct 2025245 PMAQI
22nd Oct 2025246 PMAQI
22nd Oct 2025297 PMAQI
22nd Oct 2025328 PMAQI
22nd Oct 2025389 PMAQI
22nd Oct 20254910 PMAQI
22nd Oct 20255611 PMAQI
23rd Oct 20255912 AMAQI
23rd Oct 2025601 AMAQI
23rd Oct 2025502 AMAQI
23rd Oct 2025443 AMAQI
23rd Oct 2025514 AMAQI
23rd Oct 2025565 AMAQI
12°C10/14°C
23rd Oct 2025566 AMAQI
23rd Oct 2025517 AMAQI
23rd Oct 2025438 AMAQI
23rd Oct 2025369 AMAQI
23rd Oct 20253310 AMAQI
23rd Oct 20253011 AMAQI
23rd Oct 20252712 PMAQI
23rd Oct 2025291 PMAQI
23rd Oct 2025362 PMAQI
23rd Oct 2025393 PMAQI
23rd Oct 2025414 PMAQI
23rd Oct 2025385 PMAQI
23rd Oct 2025376 PMAQI
23rd Oct 2025397 PMAQI
23rd Oct 2025418 PMAQI
23rd Oct 2025389 PMAQI
23rd Oct 20253510 PMAQI
23rd Oct 20253411 PMAQI
24th Oct 20253312 AMAQI
24th Oct 2025341 AMAQI
24th Oct 2025352 AMAQI
24th Oct 2025363 AMAQI
24th Oct 2025364 AMAQI
24th Oct 2025365 AMAQI
12°C10/14°C
24th Oct 2025376 AMAQI
24th Oct 2025367 AMAQI
24th Oct 2025368 AMAQI
24th Oct 2025379 AMAQI
24th Oct 20253810 AMAQI
24th Oct 20254611 AMAQI
24th Oct 20255412 PMAQI
24th Oct 2025511 PMAQI
24th Oct 2025402 PMAQI
24th Oct 2025313 PMAQI
24th Oct 2025284 PMAQI
24th Oct 2025285 PMAQI
24th Oct 2025296 PMAQI
24th Oct 2025297 PMAQI
24th Oct 2025308 PMAQI
24th Oct 2025309 PMAQI
24th Oct 20253010 PMAQI
24th Oct 20253311 PMAQI
25th Oct 20253712 AMAQI
25th Oct 2025391 AMAQI
25th Oct 2025392 AMAQI
25th Oct 2025363 AMAQI
25th Oct 2025294 AMAQI
25th Oct 2025245 AMAQI
11°C8/14°C
25th Oct 2025206 AMAQI
25th Oct 2025197 AMAQI
25th Oct 2025198 AMAQI
25th Oct 2025209 AMAQI
25th Oct 20252010 AMAQI
25th Oct 20252011 AMAQI
25th Oct 20252012 PMAQI
25th Oct 2025201 PMAQI
25th Oct 2025192 PMAQI
25th Oct 2025173 PMAQI
25th Oct 2025174 PMAQI
25th Oct 2025165 PMAQI
25th Oct 2025146 PMAQI
25th Oct 2025147 PMAQI
25th Oct 2025158 PMAQI
25th Oct 2025179 PMAQI
25th Oct 20252110 PMAQI
25th Oct 20252211 PMAQI
26th Oct 20252412 AMAQI
26th Oct 2025261 AMAQI
26th Oct 2025252 AMAQI
26th Oct 2025253 AMAQI
26th Oct 2025264 AMAQI
26th Oct 2025265 AMAQI
10°C8/13°C
26th Oct 2025256 AMAQI
26th Oct 2025267 AMAQI
26th Oct 2025258 AMAQI
26th Oct 2025259 AMAQI
26th Oct 20252510 AMAQI
26th Oct 20252511 AMAQI
26th Oct 20252612 PMAQI
26th Oct 2025261 PMAQI
26th Oct 2025272 PMAQI
26th Oct 2025263 PMAQI
26th Oct 2025234 PMAQI
26th Oct 2025225 PMAQI
26th Oct 2025226 PMAQI
26th Oct 2025227 PMAQI
26th Oct 2025238 PMAQI
26th Oct 2025259 PMAQI
26th Oct 20252610 PMAQI
26th Oct 20252511 PMAQI
27th Oct 20252212 AMAQI
27th Oct 2025191 AMAQI
27th Oct 2025172 AMAQI
27th Oct 2025173 AMAQI
27th Oct 2025174 AMAQI
27th Oct 2025175 AMAQI
8°C6/11°C
27th Oct 2025176 AMAQI
27th Oct 2025187 AMAQI
27th Oct 2025208 AMAQI
27th Oct 2025209 AMAQI
27th Oct 20251910 AMAQI
27th Oct 20251611 AMAQI
27th Oct 20251412 PMAQI
27th Oct 2025121 PMAQI
27th Oct 2025152 PMAQI
27th Oct 2025163 PMAQI
27th Oct 2025204 PMAQI
27th Oct 2025285 PMAQI
27th Oct 2025216 PMAQI
27th Oct 2025147 PMAQI
27th Oct 2025138 PMAQI
27th Oct 2025139 PMAQI
27th Oct 20251310 PMAQI
27th Oct 20251311 PMAQI
28th Oct 20251612 AMAQI
28th Oct 2025191 AMAQI
28th Oct 2025212 AMAQI
28th Oct 2025223 AMAQI
28th Oct 2025214 AMAQI
28th Oct 2025205 AMAQI
8°C7/9°C
28th Oct 2025196 AMAQI
28th Oct 2025177 AMAQI
28th Oct 2025178 AMAQI
28th Oct 2025189 AMAQI
28th Oct 20251910 AMAQI
28th Oct 20252011 AMAQI
28th Oct 20251912 PMAQI
28th Oct 2025171 PMAQI
28th Oct 2025182 PMAQI
28th Oct 2025183 PMAQI
28th Oct 2025174 PMAQI
28th Oct 2025165 PMAQI
28th Oct 2025156 PMAQI
28th Oct 2025157 PMAQI
28th Oct 2025168 PMAQI
28th Oct 2025159 PMAQI
28th Oct 20251610 PMAQI
28th Oct 20252311 PMAQI
29th Oct 20252512 AMAQI
29th Oct 2025231 AMAQI
29th Oct 2025222 AMAQI
29th Oct 2025213 AMAQI
29th Oct 2025214 AMAQI
29th Oct 2025215 AMAQI
9°C8/10°C
29th Oct 2025206 AMAQI
29th Oct 2025187 AMAQI
29th Oct 2025178 AMAQI
29th Oct 2025179 AMAQI
29th Oct 20251810 AMAQI
29th Oct 20251811 AMAQI
29th Oct 20251712 PMAQI
29th Oct 2025201 PMAQI
29th Oct 2025202 PMAQI
29th Oct 2025183 PMAQI
29th Oct 2025194 PMAQI
29th Oct 2025205 PMAQI
29th Oct 2025206 PMAQI
29th Oct 2025217 PMAQI
29th Oct 2025228 PMAQI
29th Oct 2025229 PMAQI
29th Oct 20252410 PMAQI
29th Oct 20252911 PMAQI
30th Oct 20253312 AMAQI
30th Oct 2025331 AMAQI
30th Oct 2025332 AMAQI
30th Oct 2025333 AMAQI
30th Oct 2025354 AMAQI
30th Oct 2025365 AMAQI
8°C6/10°C
30th Oct 2025366 AMAQI
30th Oct 2025367 AMAQI
30th Oct 2025358 AMAQI
30th Oct 2025309 AMAQI
30th Oct 20252710 AMAQI
30th Oct 20252511 AMAQI
30th Oct 20252512 PMAQI
30th Oct 2025291 PMAQI
30th Oct 2025282 PMAQI
30th Oct 2025243 PMAQI
30th Oct 2025214 PMAQI
30th Oct 2025185 PMAQI
30th Oct 2025196 PMAQI
30th Oct 2025237 PMAQI
30th Oct 2025238 PMAQI
30th Oct 2025219 PMAQI
30th Oct 20252110 PMAQI
30th Oct 20252011 PMAQI
31st Oct 20252312 AMAQI
31st Oct 2025271 AMAQI
31st Oct 2025292 AMAQI
31st Oct 2025313 AMAQI
31st Oct 2025334 AMAQI
31st Oct 2025335 AMAQI
10°C8/11°C
31st Oct 2025356 AMAQI
31st Oct 2025367 AMAQI
31st Oct 2025308 AMAQI
31st Oct 2025219 AMAQI
31st Oct 20251710 AMAQI
31st Oct 20251611 AMAQI
31st Oct 20251612 PMAQI
31st Oct 2025161 PMAQI
31st Oct 2025192 PMAQI
31st Oct 2025193 PMAQI
31st Oct 2025174 PMAQI
31st Oct 2025285 PMAQI
31st Oct 2025456 PMAQI
31st Oct 2025537 PMAQI
31st Oct 2025548 PMAQI
31st Oct 2025529 PMAQI
31st Oct 20255210 PMAQI
31st Oct 20255211 PMAQI
1st Nov 20254812 AMAQI
1st Nov 2025411 AMAQI
1st Nov 2025362 AMAQI
1st Nov 2025273 AMAQI
1st Nov 2025224 AMAQI
1st Nov 2025225 AMAQI
12°C11/12°C
1st Nov 2025206 AMAQI
1st Nov 2025167 AMAQI
1st Nov 2025158 AMAQI
1st Nov 2025149 AMAQI
1st Nov 20251410 AMAQI
1st Nov 20251411 AMAQI
1st Nov 20251812 PMAQI
1st Nov 2025191 PMAQI
1st Nov 2025192 PMAQI
1st Nov 2025223 PMAQI
1st Nov 2025174 PMAQI
1st Nov 2025125 PMAQI
1st Nov 2025126 PMAQI
1st Nov 2025117 PMAQI
1st Nov 2025118 PMAQI
1st Nov 2025129 PMAQI
1st Nov 20251210 PMAQI
1st Nov 20251011 PMAQI
2nd Nov 20251112 AMAQI
2nd Nov 2025121 AMAQI
2nd Nov 2025102 AMAQI
2nd Nov 202593 AMAQI
2nd Nov 2025104 AMAQI
2nd Nov 202595 AMAQI
9°C6/11°C
2nd Nov 2025106 AMAQI
2nd Nov 2025147 AMAQI
2nd Nov 2025148 AMAQI
2nd Nov 2025149 AMAQI
2nd Nov 20252510 AMAQI
2nd Nov 20253311 AMAQI
2nd Nov 20253712 PMAQI
2nd Nov 2025331 PMAQI
2nd Nov 2025262 PMAQI
2nd Nov 2025213 PMAQI
2nd Nov 2025184 PMAQI
2nd Nov 2025175 PMAQI
2nd Nov 2025146 PMAQI
2nd Nov 2025127 PMAQI
2nd Nov 2025118 PMAQI
2nd Nov 2025129 PMAQI
2nd Nov 20251710 PMAQI
2nd Nov 20251911 PMAQI
3rd Nov 20251912 AMAQI
3rd Nov 2025191 AMAQI
3rd Nov 2025192 AMAQI
3rd Nov 2025203 AMAQI
3rd Nov 2025214 AMAQI
3rd Nov 2025215 AMAQI
7°C5/10°C
3rd Nov 2025206 AMAQI
3rd Nov 2025207 AMAQI
3rd Nov 2025218 AMAQI
3rd Nov 2025229 AMAQI
3rd Nov 20252210 AMAQI
3rd Nov 20252311 AMAQI
3rd Nov 20252212 PMAQI
3rd Nov 2025201 PMAQI
3rd Nov 2025192 PMAQI
3rd Nov 2025183 PMAQI
3rd Nov 2025174 PMAQI
3rd Nov 2025175 PMAQI
3rd Nov 2025176 PMAQI
3rd Nov 2025177 PMAQI
3rd Nov 2025188 PMAQI
3rd Nov 2025219 PMAQI
3rd Nov 20252210 PMAQI
3rd Nov 20252211 PMAQI
4th Nov 20252212 AMAQI
4th Nov 2025211 AMAQI
4th Nov 2025192 AMAQI
4th Nov 2025163 AMAQI
4th Nov 2025154 AMAQI
4th Nov 2025175 AMAQI
7°C3/10°C
4th Nov 2025186 AMAQI
4th Nov 2025147 AMAQI
4th Nov 2025128 AMAQI
4th Nov 2025139 AMAQI
4th Nov 20251310 AMAQI
4th Nov 20251711 AMAQI
4th Nov 20252812 PMAQI
4th Nov 2025371 PMAQI
4th Nov 2025412 PMAQI
4th Nov 2025423 PMAQI
4th Nov 2025434 PMAQI
4th Nov 2025415 PMAQI
4th Nov 2025406 PMAQI
4th Nov 2025377 PMAQI
4th Nov 2025298 PMAQI
4th Nov 2025189 PMAQI
4th Nov 20251210 PMAQI
4th Nov 20251011 PMAQI
5th Nov 20251012 AMAQI
5th Nov 2025101 AMAQI
5th Nov 2025112 AMAQI
5th Nov 2025123 AMAQI
5th Nov 2025124 AMAQI
5th Nov 2025115 AMAQI
8°C6/10°C
5th Nov 2025106 AMAQI
6 AM5th Nov 2025127 AMAQI
5th Nov 2025128 AMAQI
5th Nov 2025119 AMAQI
5th Nov 20251210 AMAQI
5th Nov 20251211 AMAQI
11 AM5th Nov 20251312 PMAQI
5th Nov 2025131 PMAQI
5th Nov 2025112 PMAQI
5th Nov 2025113 PMAQI
5 PM
11 PM
5 AM
--°C/°C
Day time
Avg. Highest Time
6 AM - 2 PM
28AQI
9 hours / Day
270 hours / Month
Avg. Lowest Time
3 PM - 5 PM
27AQI
3 hours / Day
90 hours / Month
In the last 30 days, during the daytime, the highest AQI was between 6 AM to 2 PM (Avg. 28), while the lowest AQI was between 3 PM to 5 PM (Avg. 27).
Night time
Avg. Highest Time
2 AM
30AQI
1 hours / Day
30 hours / Month
Avg. Lowest Time
8 PM - 9 PM
26AQI
2 hours / Day
60 hours / Month
In the last 30 days, during the daytime, the highest AQI was between 2 AM to 2 AM (Avg. 30), while the lowest AQI was between 8 PM to 9 PM (Avg. 26).
2025 Days Vs Air Quality
Saint John, New Brunswick, Canada
2025
97%
300
3%
8
Total number of days with different AQI categories in last 309 days in 2025 (56 days remaining)
Good
300 DaysModerate
8 DaysPoor
0 DaysUnhealthy
0 DaysSevere
0 DaysHazardous
0 DaysUnder WHO’s Safe Air Quality Limits: 97%
Health Risk Level:
Very Low
In 2025, 97% of 309 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
Saint John, New Brunswick, 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
26AQI
26AQI
2nd January 2025
22AQI
22AQI
3rd January 2025
26AQI
26AQI
4th January 2025
23AQI
23AQI
5th January 2025
23AQI
23AQI
6th January 2025
24AQI
24AQI
7th January 2025
22AQI
22AQI
8th January 2025
22AQI
22AQI
9th January 2025
26AQI
26AQI
10th January 2025
25AQI
25AQI
11th January 2025
23AQI
23AQI
12th January 2025
24AQI
24AQI
13th January 2025
29AQI
29AQI
14th January 2025
32AQI
32AQI
15th January 2025
24AQI
24AQI
16th January 2025
25AQI
25AQI
17th January 2025
37AQI
37AQI
18th January 2025
33AQI
33AQI
19th January 2025
24AQI
24AQI
20th January 2025
23AQI
23AQI
21st January 2025
26AQI
26AQI
22nd January 2025
28AQI
28AQI
23rd January 2025
36AQI
36AQI
24th January 2025
31AQI
31AQI
25th January 2025
26AQI
26AQI
26th January 2025
31AQI
31AQI
27th January 2025
25AQI
25AQI
28th January 2025
28AQI
28AQI
29th January 2025
25AQI
25AQI
30th January 2025
28AQI
28AQI
31st January 2025
27AQI
27AQI
1st February 2025
26AQI
26AQI
2nd February 2025
25AQI
25AQI
3rd February 2025
26AQI
26AQI
4th February 2025
23AQI
23AQI
5th February 2025
26AQI
26AQI
6th February 2025
29AQI
29AQI
7th February 2025
24AQI
24AQI
8th February 2025
26AQI
26AQI
9th February 2025
26AQI
26AQI
10th February 2025
30AQI
30AQI
11th February 2025
30AQI
30AQI
12th February 2025
27AQI
27AQI
13th February 2025
25AQI
25AQI
14th February 2025
26AQI
26AQI
15th February 2025
27AQI
27AQI
16th February 2025
26AQI
26AQI
17th February 2025
26AQI
26AQI
18th February 2025
23AQI
23AQI
19th February 2025
22AQI
22AQI
20th February 2025
22AQI
22AQI
21st February 2025
26AQI
26AQI
22nd February 2025
28AQI
28AQI
23rd February 2025
29AQI
29AQI
24th February 2025
35AQI
35AQI
25th February 2025
45AQI
45AQI
26th February 2025
31AQI
31AQI
27th February 2025
29AQI
29AQI
28th February 2025
31AQI
31AQI
1st March 2025
32AQI
32AQI
2nd March 2025
29AQI
29AQI
3rd March 2025
28AQI
28AQI
4th March 2025
35AQI
35AQI
5th March 2025
45AQI
45AQI
6th March 2025
28AQI
28AQI
7th March 2025
24AQI
24AQI
8th March 2025
29AQI
29AQI
9th March 2025
28AQI
28AQI
10th March 2025
28AQI
28AQI
11th March 2025
27AQI
27AQI
12th March 2025
30AQI
30AQI
13th March 2025
23AQI
23AQI
14th March 2025
22AQI
22AQI
15th March 2025
23AQI
23AQI
16th March 2025
19AQI
19AQI
17th March 2025
28AQI
28AQI
18th March 2025
16AQI
16AQI
19th March 2025
23AQI
23AQI
20th March 2025
18AQI
18AQI
21st March 2025
14AQI
14AQI
22nd March 2025
20AQI
20AQI
23rd March 2025
30AQI
30AQI
24th March 2025
18AQI
18AQI
25th March 2025
19AQI
19AQI
26th March 2025
27AQI
27AQI
27th March 2025
21AQI
21AQI
28th March 2025
19AQI
19AQI
29th March 2025
16AQI
16AQI
30th March 2025
18AQI
18AQI
31st March 2025
17AQI
17AQI
1st April 2025
22AQI
22AQI
2nd April 2025
22AQI
22AQI
3rd April 2025
19AQI
19AQI
4th April 2025
21AQI
21AQI
5th April 2025
15AQI
15AQI
6th April 2025
16AQI
16AQI
7th April 2025
17AQI
17AQI
8th April 2025
18AQI
18AQI
9th April 2025
16AQI
16AQI
10th April 2025
16AQI
16AQI
11th April 2025
11AQI
11AQI
12th April 2025
12AQI
12AQI
13th April 2025
10AQI
10AQI
14th April 2025
11AQI
11AQI
15th April 2025
10AQI
10AQI
16th April 2025
10AQI
10AQI
17th April 2025
11AQI
11AQI
18th April 2025
11AQI
11AQI
19th April 2025
13AQI
13AQI
20th April 2025
13AQI
13AQI
21st April 2025
13AQI
13AQI
22nd April 2025
16AQI
16AQI
23rd April 2025
14AQI
14AQI
24th April 2025
15AQI
15AQI
25th April 2025
18AQI
18AQI
26th April 2025
20AQI
20AQI
27th April 2025
15AQI
15AQI
28th April 2025
15AQI
15AQI
29th April 2025
25AQI
25AQI
30th April 2025
26AQI
26AQI
1st May 2025
16AQI
16AQI
2nd May 2025
21AQI
21AQI
3rd May 2025
22AQI
22AQI
4th May 2025
24AQI
24AQI
5th May 2025
17AQI
17AQI
6th May 2025
18AQI
18AQI
7th May 2025
16AQI
16AQI
8th May 2025
19AQI
19AQI
9th May 2025
15AQI
15AQI
10th May 2025
14AQI
14AQI
11th May 2025
16AQI
16AQI
12th May 2025
17AQI
17AQI
13th May 2025
20AQI
20AQI
14th May 2025
21AQI
21AQI
15th May 2025
27AQI
27AQI
16th May 2025
27AQI
27AQI
17th May 2025
23AQI
23AQI
18th May 2025
16AQI
16AQI
19th May 2025
15AQI
15AQI
20th May 2025
12AQI
12AQI
21st May 2025
15AQI
15AQI
22nd May 2025
18AQI
18AQI
23rd May 2025
16AQI
16AQI
24th May 2025
14AQI
14AQI
25th May 2025
13AQI
13AQI
26th May 2025
15AQI
15AQI
27th May 2025
22AQI
22AQI
28th May 2025
28AQI
28AQI
29th May 2025
30AQI
30AQI
30th May 2025
23AQI
23AQI
31st May 2025
19AQI
19AQI
1st June 2025
27AQI
27AQI
2nd June 2025
28AQI
28AQI
3rd June 2025
27AQI
27AQI
4th June 2025
35AQI
35AQI
5th June 2025
37AQI
37AQI
6th June 2025
46AQI
46AQI
7th June 2025
45AQI
45AQI
8th June 2025
48AQI
48AQI
9th June 2025
51AQI
51AQI
10th June 2025
40AQI
40AQI
11th June 2025
31AQI
31AQI
12th June 2025
56AQI
56AQI
13th June 2025
36AQI
36AQI
14th June 2025
25AQI
25AQI
15th June 2025
28AQI
28AQI
16th June 2025
26AQI
26AQI
17th June 2025
24AQI
24AQI
18th June 2025
22AQI
22AQI
19th June 2025
20AQI
20AQI
20th June 2025
24AQI
24AQI
21st June 2025
19AQI
19AQI
22nd June 2025
22AQI
22AQI
23rd June 2025
33AQI
33AQI
24th June 2025
46AQI
46AQI
25th June 2025
49AQI
49AQI
26th June 2025
22AQI
22AQI
27th June 2025
21AQI
21AQI
28th June 2025
23AQI
23AQI
29th June 2025
17AQI
17AQI
30th June 2025
20AQI
20AQI
1st July 2025
28AQI
28AQI
2nd July 2025
27AQI
27AQI
3rd July 2025
34AQI
34AQI
4th July 2025
36AQI
36AQI
5th July 2025
24AQI
24AQI
6th July 2025
35AQI
35AQI
7th July 2025
46AQI
46AQI
8th July 2025
22AQI
22AQI
9th July 2025
22AQI
22AQI
10th July 2025
29AQI
29AQI
11th July 2025
26AQI
26AQI
12th July 2025
25AQI
25AQI
13th July 2025
21AQI
21AQI
14th July 2025
19AQI
19AQI
15th July 2025
23AQI
23AQI
16th July 2025
32AQI
32AQI
17th July 2025
21AQI
21AQI
18th July 2025
19AQI
19AQI
19th July 2025
26AQI
26AQI
20th July 2025
28AQI
28AQI
21st July 2025
26AQI
26AQI
22nd July 2025
18AQI
18AQI
23rd July 2025
29AQI
29AQI
24th July 2025
27AQI
27AQI
25th July 2025
41AQI
41AQI
26th July 2025
53AQI
53AQI
27th July 2025
55AQI
55AQI
28th July 2025
54AQI
54AQI
29th July 2025
42AQI
42AQI
30th July 2025
48AQI
48AQI
31st July 2025
57AQI
57AQI
1st August 2025
24AQI
24AQI
2nd August 2025
24AQI
24AQI
3rd August 2025
38AQI
38AQI
4th August 2025
53AQI
53AQI
5th August 2025
41AQI
41AQI
6th August 2025
23AQI
23AQI
7th August 2025
29AQI
29AQI
8th August 2025
44AQI
44AQI
9th August 2025
31AQI
31AQI
10th August 2025
26AQI
26AQI
11th August 2025
31AQI
31AQI
12th August 2025
43AQI
43AQI
13th August 2025
57AQI
57AQI
14th August 2025
34AQI
34AQI
15th August 2025
24AQI
24AQI
16th August 2025
22AQI
22AQI
17th August 2025
24AQI
24AQI
18th August 2025
14AQI
14AQI
19th August 2025
15AQI
15AQI
20th August 2025
18AQI
18AQI
21st August 2025
24AQI
24AQI
22nd August 2025
26AQI
26AQI
23rd August 2025
29AQI
29AQI
24th August 2025
37AQI
37AQI
25th August 2025
28AQI
28AQI
26th August 2025
19AQI
19AQI
27th August 2025
21AQI
21AQI
28th August 2025
22AQI
22AQI
29th August 2025
25AQI
25AQI
30th August 2025
24AQI
24AQI
31st August 2025
21AQI
21AQI
1st September 2025
27AQI
27AQI
2nd September 2025
32AQI
32AQI
3rd September 2025
29AQI
29AQI
4th September 2025
23AQI
23AQI
5th September 2025
20AQI
20AQI
6th September 2025
24AQI
24AQI
7th September 2025
22AQI
22AQI
8th September 2025
22AQI
22AQI
9th September 2025
21AQI
21AQI
10th September 2025
22AQI
22AQI
11th September 2025
25AQI
25AQI
12th September 2025
20AQI
20AQI
13th September 2025
19AQI
19AQI
14th September 2025
20AQI
20AQI
15th September 2025
23AQI
23AQI
16th September 2025
25AQI
25AQI
17th September 2025
27AQI
27AQI
18th September 2025
22AQI
22AQI
19th September 2025
17AQI
17AQI
20th September 2025
15AQI
15AQI
21st September 2025
16AQI
16AQI
22nd September 2025
17AQI
17AQI
23rd September 2025
20AQI
20AQI
24th September 2025
19AQI
19AQI
25th September 2025
18AQI
18AQI
26th September 2025
19AQI
19AQI
27th September 2025
19AQI
19AQI
28th September 2025
29AQI
29AQI
29th September 2025
23AQI
23AQI
30th September 2025
19AQI
19AQI
1st October 2025
12AQI
12AQI
2nd October 2025
17AQI
17AQI
3rd October 2025
28AQI
28AQI
4th October 2025
40AQI
40AQI
5th October 2025
39AQI
39AQI
6th October 2025
34AQI
34AQI
7th October 2025
38AQI
38AQI
8th October 2025
44AQI
44AQI
9th October 2025
35AQI
35AQI
10th October 2025
34AQI
34AQI
11th October 2025
28AQI
28AQI
12th October 2025
32AQI
32AQI
13th October 2025
28AQI
28AQI
14th October 2025
32AQI
32AQI
15th October 2025
29AQI
29AQI
16th October 2025
28AQI
28AQI
17th October 2025
27AQI
27AQI
18th October 2025
31AQI
31AQI
19th October 2025
24AQI
24AQI
20th October 2025
25AQI
25AQI
21st October 2025
29AQI
29AQI
22nd October 2025
34AQI
34AQI
23rd October 2025
43AQI
43AQI
24th October 2025
35AQI
35AQI
25th October 2025
23AQI
23AQI
26th October 2025
25AQI
25AQI
27th October 2025
17AQI
17AQI
28th October 2025
18AQI
18AQI
29th October 2025
20AQI
20AQI
30th October 2025
27AQI
27AQI
31st October 2025
33AQI
33AQI
1st November 2025
21AQI
21AQI
2nd November 2025
16AQI
16AQI
3rd November 2025
20AQI
20AQI
4th November 2025
24AQI
24AQI
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
27AQI
27AQI
24AQI
16AQI
19AQI
32AQI
32AQI
29AQI
22AQI
29AQI
20AQI
No. of days
Jan.Feb.Mar.Apr.MayJun.Jul.Aug.Sep.Oct.Nov.Dec.Total Days
202526AQI
31
28
31
30
31
28
2
27
4
29
2
30
31
4
300
8
Highest AQI recorded in
July32AQI
Lowest AQI recorded in
April16AQI
202426AQI
31
29
31
30
31
28
1
31
30
1
30
31
30
31
363
2
Highest AQI recorded in
February30AQI
Lowest AQI recorded in
November17AQI
202330AQI
31
28
31
30
31
26
4
31
30
1
27
3
30
1
29
31
355
9
Highest AQI recorded in
March34AQI
Lowest AQI recorded in
November26AQI
202229AQI
31
20
1
31
30
31
30
22
2
2
28
1
31
30
29
2
315
6
Highest AQI recorded in
February34AQI
Lowest AQI recorded in
September25AQI
202128AQI
30
28
29
2
29
1
29
2
27
3
30
1
31
30
31
30
31
355
9
Highest AQI recorded in
March33AQI
Lowest AQI recorded in
October20AQI
202024AQI
13
21
18
30
31
31
30
31
29
31
265
Highest AQI recorded in
March32AQI
Lowest AQI recorded in
September20AQI
Most & Least Polluted Years Over the Last 6 Years
Most Polluted Year Recorded
2023(Avg.)
30AQILeast Polluted Year Recorded
2020(Avg.)
24AQISaint John's annual 2025 AQI (26) shows an average percentage change of -5.9% (improved AQI) compared to previous years: 2020 (24), 2021 (28), 2022 (29), 2023 (30), 2024 (26).
