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+
August Air Quality Analysis
Saint John, New Brunswick, Canada
2021
2022
2023
2024
2025
AQI
.
Days
AQI Trends: Highest and Lowest
Highest AQI recorded on
21st Aug 2023
61AQILowest AQI recorded on
29th Aug 2024
15AQISame Day Analysis (1st August ):
On this day, AQI across the 5 years varied significantly: 2025 ranks 3rd highest AQI at 26 of Good air quality, showing improvement over 2022 and 2021 on the same day.
Download 2024 Annual Data
World Air Quality Report
Day & Night AQI Trend: 1st Aug - 2nd Aug 2025
Saint John, New Brunswick, Canada
AQI
Day
Night
.
5 AM1st Aug 2025
9 PM
4 AM2nd Aug 2025
Day time
Avg. Highest Time
6AM1st Aug
29AQI
Avg. Lowest Time
8PM1st Aug
17AQI
Night time
Avg. Highest Time
2AM2nd Aug
32AQI
Avg. Lowest Time
10PM1st Aug
20AQI
In the last 24 hours,
Saint John's AQI reached its highest point of 32 at 2 AM during the Night, while the lowest point, 17, was recorded at 8 PM during the Day between 1st Aug and 2nd Aug 2025.
Day & Night AQI Trend : Jul - Aug 2025
Saint John, New Brunswick, Canada
JulAug
03rd - 04th04th - 05th05th - 06th06th - 07th07th - 08th08th - 09th09th - 10th10th - 11th11th - 12th12th - 13th13th - 14th14th - 15th15th - 16th16th - 17th17th - 18th18th - 19th19th - 20th20th - 21st21st - 22nd22nd - 23rd23rd - 24th24th - 25th25th - 26th26th - 27th27th - 28th28th - 29th29th - 30th30th - 31st31st - 01st01st - 02nd02nd
Day
Night
3rd Jul 2025295 AMAQI
3rd Jul 2025336 AMAQI
3rd Jul 2025357 AMAQI
3rd Jul 2025358 AMAQI
3rd Jul 2025359 AMAQI
3rd Jul 20253610 AMAQI
3rd Jul 20253611 AMAQI
3rd Jul 20253712 PMAQI
3rd Jul 2025381 PMAQI
3rd Jul 2025382 PMAQI
3rd Jul 2025363 PMAQI
3rd Jul 2025354 PMAQI
3rd Jul 2025335 PMAQI
3rd Jul 2025356 PMAQI
3rd Jul 2025357 PMAQI
3rd Jul 2025358 PMAQI
3rd Jul 2025379 PMAQI
3rd Jul 20253910 PMAQI
3rd Jul 20253811 PMAQI
4th Jul 20253812 AMAQI
4th Jul 2025381 AMAQI
4th Jul 2025372 AMAQI
4th Jul 2025333 AMAQI
4th Jul 2025344 AMAQI
16°C11/20°C
4th Jul 2025335 AMAQI
4th Jul 2025356 AMAQI
4th Jul 2025367 AMAQI
4th Jul 2025358 AMAQI
4th Jul 2025349 AMAQI
4th Jul 20253910 AMAQI
4th Jul 20254111 AMAQI
4th Jul 20254012 PMAQI
4th Jul 2025371 PMAQI
4th Jul 2025412 PMAQI
4th Jul 2025403 PMAQI
4th Jul 2025404 PMAQI
4th Jul 2025385 PMAQI
4th Jul 2025366 PMAQI
4th Jul 2025337 PMAQI
4th Jul 2025318 PMAQI
4th Jul 2025349 PMAQI
4th Jul 20253510 PMAQI
4th Jul 20252911 PMAQI
5th Jul 20253012 AMAQI
5th Jul 2025291 AMAQI
5th Jul 2025262 AMAQI
5th Jul 2025193 AMAQI
5th Jul 2025204 AMAQI
18°C14/22°C
5th Jul 2025205 AMAQI
5th Jul 2025196 AMAQI
5th Jul 2025197 AMAQI
5th Jul 2025208 AMAQI
5th Jul 2025209 AMAQI
5th Jul 20252010 AMAQI
5th Jul 20252111 AMAQI
5th Jul 20252212 PMAQI
5th Jul 2025211 PMAQI
5th Jul 2025212 PMAQI
5th Jul 2025233 PMAQI
5th Jul 2025254 PMAQI
5th Jul 2025255 PMAQI
5th Jul 2025256 PMAQI
5th Jul 2025257 PMAQI
5th Jul 2025278 PMAQI
5th Jul 2025259 PMAQI
5th Jul 20252210 PMAQI
5th Jul 20252611 PMAQI
6th Jul 20252612 AMAQI
6th Jul 2025271 AMAQI
6th Jul 2025322 AMAQI
6th Jul 2025353 AMAQI
6th Jul 2025314 AMAQI
18°C12/26°C
6th Jul 2025305 AMAQI
6th Jul 2025316 AMAQI
6th Jul 2025327 AMAQI
6th Jul 2025338 AMAQI
6th Jul 2025349 AMAQI
6th Jul 20253510 AMAQI
6th Jul 20253711 AMAQI
6th Jul 20254012 PMAQI
6th Jul 2025451 PMAQI
6th Jul 2025482 PMAQI
6th Jul 2025493 PMAQI
6th Jul 2025454 PMAQI
6th Jul 2025365 PMAQI
6th Jul 2025356 PMAQI
6th Jul 2025377 PMAQI
6th Jul 2025378 PMAQI
6th Jul 2025379 PMAQI
6th Jul 20253510 PMAQI
6th Jul 20253711 PMAQI
7th Jul 20253612 AMAQI
7th Jul 2025381 AMAQI
7th Jul 2025392 AMAQI
7th Jul 2025493 AMAQI
7th Jul 2025484 AMAQI
15°C12/18°C
7th Jul 2025475 AMAQI
7th Jul 2025466 AMAQI
7th Jul 2025477 AMAQI
7th Jul 2025528 AMAQI
7th Jul 2025549 AMAQI
7th Jul 20255510 AMAQI
7th Jul 20255411 AMAQI
7th Jul 20255512 PMAQI
7th Jul 2025541 PMAQI
7th Jul 2025532 PMAQI
7th Jul 2025533 PMAQI
7th Jul 2025534 PMAQI
7th Jul 2025535 PMAQI
7th Jul 2025496 PMAQI
7th Jul 2025447 PMAQI
7th Jul 2025418 PMAQI
7th Jul 2025429 PMAQI
7th Jul 20254110 PMAQI
7th Jul 20253111 PMAQI
8th Jul 20253212 AMAQI
8th Jul 2025341 AMAQI
8th Jul 2025282 AMAQI
8th Jul 2025203 AMAQI
8th Jul 2025204 AMAQI
15°C13/20°C
8th Jul 2025195 AMAQI
8th Jul 2025216 AMAQI
8th Jul 2025207 AMAQI
8th Jul 2025208 AMAQI
8th Jul 2025229 AMAQI
8th Jul 20252310 AMAQI
8th Jul 20252111 AMAQI
8th Jul 20251812 PMAQI
8th Jul 2025171 PMAQI
8th Jul 2025182 PMAQI
8th Jul 2025183 PMAQI
8th Jul 2025194 PMAQI
8th Jul 2025205 PMAQI
8th Jul 2025216 PMAQI
8th Jul 2025217 PMAQI
8th Jul 2025228 PMAQI
8th Jul 2025219 PMAQI
8th Jul 20252110 PMAQI
8th Jul 20252211 PMAQI
9th Jul 20252212 AMAQI
9th Jul 2025221 AMAQI
9th Jul 2025222 AMAQI
9th Jul 2025213 AMAQI
9th Jul 2025224 AMAQI
16°C13/19°C
9th Jul 2025215 AMAQI
9th Jul 2025216 AMAQI
9th Jul 2025207 AMAQI
9th Jul 2025208 AMAQI
9th Jul 2025209 AMAQI
9th Jul 20252110 AMAQI
9th Jul 20252011 AMAQI
9th Jul 20252212 PMAQI
9th Jul 2025221 PMAQI
9th Jul 2025212 PMAQI
9th Jul 2025213 PMAQI
9th Jul 2025224 PMAQI
9th Jul 2025235 PMAQI
9th Jul 2025226 PMAQI
9th Jul 2025237 PMAQI
9th Jul 2025238 PMAQI
9th Jul 2025239 PMAQI
9th Jul 20252310 PMAQI
9th Jul 20252411 PMAQI
10th Jul 20252712 AMAQI
10th Jul 2025281 AMAQI
10th Jul 2025302 AMAQI
10th Jul 2025313 AMAQI
10th Jul 2025284 AMAQI
17°C12/22°C
10th Jul 2025285 AMAQI
10th Jul 2025286 AMAQI
10th Jul 2025297 AMAQI
10th Jul 2025308 AMAQI
10th Jul 2025309 AMAQI
10th Jul 20253010 AMAQI
10th Jul 20253011 AMAQI
10th Jul 20253112 PMAQI
10th Jul 2025291 PMAQI
10th Jul 2025302 PMAQI
10th Jul 2025293 PMAQI
10th Jul 2025284 PMAQI
10th Jul 2025305 PMAQI
10th Jul 2025296 PMAQI
10th Jul 2025307 PMAQI
10th Jul 2025308 PMAQI
10th Jul 2025299 PMAQI
10th Jul 20253010 PMAQI
10th Jul 20252911 PMAQI
11th Jul 20253012 AMAQI
11th Jul 2025301 AMAQI
11th Jul 2025292 AMAQI
11th Jul 2025273 AMAQI
11th Jul 2025284 AMAQI
17°C13/21°C
11th Jul 2025265 AMAQI
11th Jul 2025256 AMAQI
11th Jul 2025257 AMAQI
11th Jul 2025258 AMAQI
11th Jul 2025259 AMAQI
11th Jul 20252410 AMAQI
11th Jul 20252411 AMAQI
11th Jul 20252512 PMAQI
11th Jul 2025251 PMAQI
11th Jul 2025242 PMAQI
11th Jul 2025233 PMAQI
11th Jul 2025234 PMAQI
11th Jul 2025245 PMAQI
11th Jul 2025236 PMAQI
11th Jul 2025237 PMAQI
11th Jul 2025238 PMAQI
11th Jul 2025269 PMAQI
11th Jul 20252610 PMAQI
11th Jul 20252611 PMAQI
12th Jul 20252612 AMAQI
12th Jul 2025281 AMAQI
12th Jul 2025272 AMAQI
12th Jul 2025263 AMAQI
12th Jul 2025284 AMAQI
16°C13/20°C
12th Jul 2025335 AMAQI
12th Jul 2025266 AMAQI
12th Jul 2025247 AMAQI
12th Jul 2025258 AMAQI
12th Jul 2025259 AMAQI
12th Jul 20252410 AMAQI
12th Jul 20252311 AMAQI
12th Jul 20252312 PMAQI
12th Jul 2025231 PMAQI
12th Jul 2025222 PMAQI
12th Jul 2025203 PMAQI
12th Jul 2025214 PMAQI
12th Jul 2025245 PMAQI
12th Jul 2025236 PMAQI
12th Jul 2025237 PMAQI
12th Jul 2025228 PMAQI
12th Jul 2025249 PMAQI
12th Jul 20252510 PMAQI
12th Jul 20252711 PMAQI
13th Jul 20252612 AMAQI
13th Jul 2025281 AMAQI
13th Jul 2025252 AMAQI
13th Jul 2025203 AMAQI
13th Jul 2025194 AMAQI
16°C13/19°C
13th Jul 2025175 AMAQI
13th Jul 2025156 AMAQI
13th Jul 2025167 AMAQI
13th Jul 2025178 AMAQI
13th Jul 2025179 AMAQI
13th Jul 20251610 AMAQI
13th Jul 20251711 AMAQI
13th Jul 20251612 PMAQI
13th Jul 2025171 PMAQI
13th Jul 2025162 PMAQI
13th Jul 2025173 PMAQI
13th Jul 2025184 PMAQI
13th Jul 2025205 PMAQI
13th Jul 2025226 PMAQI
13th Jul 2025237 PMAQI
13th Jul 2025248 PMAQI
13th Jul 2025219 PMAQI
13th Jul 20252110 PMAQI
13th Jul 20252711 PMAQI
14th Jul 20252512 AMAQI
14th Jul 2025241 AMAQI
14th Jul 2025212 AMAQI
14th Jul 2025183 AMAQI
14th Jul 2025184 AMAQI
15°C12/18°C
14th Jul 2025175 AMAQI
14th Jul 2025176 AMAQI
14th Jul 2025167 AMAQI
14th Jul 2025168 AMAQI
14th Jul 2025179 AMAQI
14th Jul 20251610 AMAQI
14th Jul 20251711 AMAQI
14th Jul 20251712 PMAQI
14th Jul 2025161 PMAQI
14th Jul 2025162 PMAQI
14th Jul 2025163 PMAQI
14th Jul 2025184 PMAQI
14th Jul 2025185 PMAQI
14th Jul 2025196 PMAQI
14th Jul 2025197 PMAQI
14th Jul 2025198 PMAQI
14th Jul 2025189 PMAQI
14th Jul 20251810 PMAQI
14th Jul 20252111 PMAQI
15th Jul 20252112 AMAQI
15th Jul 2025221 AMAQI
15th Jul 2025202 AMAQI
15th Jul 2025183 AMAQI
15th Jul 2025164 AMAQI
15°C12/17°C
15th Jul 2025175 AMAQI
15th Jul 2025176 AMAQI
15th Jul 2025177 AMAQI
15th Jul 2025178 AMAQI
15th Jul 2025189 AMAQI
15th Jul 20251910 AMAQI
15th Jul 20252111 AMAQI
15th Jul 20252212 PMAQI
15th Jul 2025231 PMAQI
15th Jul 2025252 PMAQI
15th Jul 2025273 PMAQI
15th Jul 2025284 PMAQI
15th Jul 2025275 PMAQI
15th Jul 2025276 PMAQI
15th Jul 2025277 PMAQI
15th Jul 2025268 PMAQI
15th Jul 2025259 PMAQI
15th Jul 20252710 PMAQI
15th Jul 20253311 PMAQI
16th Jul 20253012 AMAQI
16th Jul 2025301 AMAQI
16th Jul 2025282 AMAQI
16th Jul 2025303 AMAQI
16th Jul 2025284 AMAQI
17°C13/23°C
16th Jul 2025295 AMAQI
16th Jul 2025296 AMAQI
16th Jul 2025307 AMAQI
16th Jul 2025318 AMAQI
16th Jul 2025339 AMAQI
16th Jul 20253310 AMAQI
16th Jul 20253411 AMAQI
16th Jul 20253412 PMAQI
16th Jul 2025341 PMAQI
16th Jul 2025342 PMAQI
16th Jul 2025333 PMAQI
16th Jul 2025334 PMAQI
16th Jul 2025345 PMAQI
16th Jul 2025356 PMAQI
16th Jul 2025357 PMAQI
16th Jul 2025348 PMAQI
16th Jul 2025329 PMAQI
16th Jul 20253110 PMAQI
16th Jul 20253011 PMAQI
17th Jul 20252812 AMAQI
17th Jul 2025271 AMAQI
17th Jul 2025252 AMAQI
17th Jul 2025213 AMAQI
17th Jul 2025204 AMAQI
17°C14/23°C
17th Jul 2025195 AMAQI
17th Jul 2025196 AMAQI
17th Jul 2025207 AMAQI
17th Jul 2025188 AMAQI
17th Jul 2025189 AMAQI
17th Jul 20252010 AMAQI
17th Jul 20252011 AMAQI
17th Jul 20251912 PMAQI
17th Jul 2025201 PMAQI
17th Jul 2025192 PMAQI
17th Jul 2025183 PMAQI
17th Jul 2025204 PMAQI
17th Jul 2025215 PMAQI
17th Jul 2025226 PMAQI
17th Jul 2025217 PMAQI
17th Jul 2025208 PMAQI
17th Jul 2025199 PMAQI
17th Jul 20251910 PMAQI
17th Jul 20251811 PMAQI
18th Jul 20251912 AMAQI
18th Jul 2025201 AMAQI
18th Jul 2025182 AMAQI
18th Jul 2025153 AMAQI
18th Jul 2025144 AMAQI
16°C14/18°C
18th Jul 2025145 AMAQI
18th Jul 2025136 AMAQI
18th Jul 2025167 AMAQI
18th Jul 2025188 AMAQI
18th Jul 2025199 AMAQI
18th Jul 20252010 AMAQI
18th Jul 20252111 AMAQI
18th Jul 20251912 PMAQI
18th Jul 2025201 PMAQI
18th Jul 2025222 PMAQI
18th Jul 2025223 PMAQI
18th Jul 2025204 PMAQI
18th Jul 2025195 PMAQI
18th Jul 2025206 PMAQI
18th Jul 2025207 PMAQI
18th Jul 2025208 PMAQI
18th Jul 2025189 PMAQI
18th Jul 20251910 PMAQI
18th Jul 20252211 PMAQI
19th Jul 20252112 AMAQI
19th Jul 2025231 AMAQI
19th Jul 2025222 AMAQI
19th Jul 2025253 AMAQI
19th Jul 2025264 AMAQI
20°C15/26°C
19th Jul 2025265 AMAQI
19th Jul 2025266 AMAQI
19th Jul 2025267 AMAQI
19th Jul 2025268 AMAQI
19th Jul 2025269 AMAQI
19th Jul 20252710 AMAQI
19th Jul 20252711 AMAQI
19th Jul 20252712 PMAQI
19th Jul 2025281 PMAQI
19th Jul 2025292 PMAQI
19th Jul 2025283 PMAQI
19th Jul 2025284 PMAQI
19th Jul 2025285 PMAQI
19th Jul 2025286 PMAQI
19th Jul 2025287 PMAQI
19th Jul 2025278 PMAQI
19th Jul 2025279 PMAQI
19th Jul 20252710 PMAQI
19th Jul 20252811 PMAQI
20th Jul 20253012 AMAQI
20th Jul 2025311 AMAQI
20th Jul 2025302 AMAQI
20th Jul 2025313 AMAQI
20th Jul 2025304 AMAQI
18°C12/24°C
20th Jul 2025295 AMAQI
20th Jul 2025286 AMAQI
20th Jul 2025277 AMAQI
20th Jul 2025268 AMAQI
20th Jul 2025269 AMAQI
20th Jul 20252610 AMAQI
20th Jul 20252611 AMAQI
20th Jul 20252612 PMAQI
20th Jul 2025251 PMAQI
20th Jul 2025262 PMAQI
20th Jul 2025263 PMAQI
20th Jul 2025264 PMAQI
20th Jul 2025275 PMAQI
20th Jul 2025276 PMAQI
20th Jul 2025267 PMAQI
20th Jul 2025288 PMAQI
20th Jul 2025289 PMAQI
20th Jul 20252810 PMAQI
20th Jul 20253011 PMAQI
21st Jul 20252912 AMAQI
21st Jul 2025281 AMAQI
21st Jul 2025272 AMAQI
21st Jul 2025283 AMAQI
21st Jul 2025224 AMAQI
14°C12/15°C
21st Jul 2025205 AMAQI
21st Jul 2025206 AMAQI
21st Jul 2025217 AMAQI
21st Jul 2025238 AMAQI
21st Jul 2025269 AMAQI
21st Jul 20252910 AMAQI
21st Jul 20253211 AMAQI
21st Jul 20253412 PMAQI
21st Jul 2025381 PMAQI
21st Jul 2025402 PMAQI
21st Jul 2025343 PMAQI
21st Jul 2025274 PMAQI
21st Jul 2025245 PMAQI
21st Jul 2025246 PMAQI
21st Jul 2025237 PMAQI
21st Jul 2025228 PMAQI
21st Jul 2025249 PMAQI
21st Jul 20252310 PMAQI
21st Jul 20252011 PMAQI
22nd Jul 20252012 AMAQI
22nd Jul 2025191 AMAQI
22nd Jul 2025192 AMAQI
22nd Jul 2025163 AMAQI
22nd Jul 2025174 AMAQI
17°C14/19°C
22nd Jul 2025185 AMAQI
22nd Jul 2025176 AMAQI
22nd Jul 2025167 AMAQI
22nd Jul 2025168 AMAQI
22nd Jul 2025169 AMAQI
22nd Jul 20251710 AMAQI
22nd Jul 20251911 AMAQI
22nd Jul 20251712 PMAQI
22nd Jul 2025171 PMAQI
22nd Jul 2025172 PMAQI
22nd Jul 2025163 PMAQI
22nd Jul 2025174 PMAQI
22nd Jul 2025175 PMAQI
22nd Jul 2025176 PMAQI
22nd Jul 2025187 PMAQI
22nd Jul 2025188 PMAQI
22nd Jul 2025189 PMAQI
22nd Jul 20251810 PMAQI
22nd Jul 20252011 PMAQI
23rd Jul 20252112 AMAQI
23rd Jul 2025221 AMAQI
23rd Jul 2025232 AMAQI
23rd Jul 2025253 AMAQI
23rd Jul 2025294 AMAQI
17°C12/24°C
23rd Jul 2025325 AMAQI
23rd Jul 2025346 AMAQI
23rd Jul 2025327 AMAQI
23rd Jul 2025308 AMAQI
23rd Jul 2025329 AMAQI
23rd Jul 20253410 AMAQI
23rd Jul 20253411 AMAQI
23rd Jul 20253412 PMAQI
23rd Jul 2025351 PMAQI
23rd Jul 2025352 PMAQI
23rd Jul 2025343 PMAQI
23rd Jul 2025344 PMAQI
23rd Jul 2025325 PMAQI
23rd Jul 2025316 PMAQI
23rd Jul 2025327 PMAQI
23rd Jul 2025318 PMAQI
23rd Jul 2025309 PMAQI
23rd Jul 20252910 PMAQI
23rd Jul 20252611 PMAQI
24th Jul 20252712 AMAQI
24th Jul 2025281 AMAQI
24th Jul 2025272 AMAQI
24th Jul 2025243 AMAQI
24th Jul 2025224 AMAQI
16°C12/21°C
24th Jul 2025225 AMAQI
24th Jul 2025246 AMAQI
24th Jul 2025227 AMAQI
24th Jul 2025248 AMAQI
24th Jul 2025259 AMAQI
24th Jul 20252510 AMAQI
24th Jul 20252511 AMAQI
24th Jul 20252512 PMAQI
24th Jul 2025261 PMAQI
24th Jul 2025282 PMAQI
24th Jul 2025293 PMAQI
24th Jul 2025294 PMAQI
24th Jul 2025305 PMAQI
24th Jul 2025306 PMAQI
24th Jul 2025317 PMAQI
24th Jul 2025328 PMAQI
24th Jul 2025289 PMAQI
24th Jul 20253010 PMAQI
24th Jul 20253411 PMAQI
25th Jul 20253412 AMAQI
25th Jul 2025341 AMAQI
25th Jul 2025352 AMAQI
25th Jul 2025403 AMAQI
25th Jul 2025444 AMAQI
15°C12/18°C
25th Jul 2025475 AMAQI
25th Jul 2025476 AMAQI
25th Jul 2025497 AMAQI
25th Jul 2025488 AMAQI
25th Jul 2025459 AMAQI
25th Jul 20254410 AMAQI
25th Jul 20254311 AMAQI
25th Jul 20254112 PMAQI
25th Jul 2025421 PMAQI
25th Jul 2025462 PMAQI
25th Jul 2025463 PMAQI
25th Jul 2025444 PMAQI
25th Jul 2025415 PMAQI
25th Jul 2025406 PMAQI
25th Jul 2025387 PMAQI
25th Jul 2025398 PMAQI
25th Jul 2025429 PMAQI
25th Jul 20254110 PMAQI
25th Jul 20253711 PMAQI
26th Jul 20253812 AMAQI
26th Jul 2025401 AMAQI
26th Jul 2025502 AMAQI
26th Jul 2025643 AMAQI
26th Jul 2025694 AMAQI
16°C14/17°C
26th Jul 2025715 AMAQI
26th Jul 2025666 AMAQI
26th Jul 2025697 AMAQI
26th Jul 2025648 AMAQI
26th Jul 2025619 AMAQI
26th Jul 20255910 AMAQI
26th Jul 20255511 AMAQI
26th Jul 20255212 PMAQI
26th Jul 2025481 PMAQI
26th Jul 2025472 PMAQI
26th Jul 2025443 PMAQI
26th Jul 2025484 PMAQI
26th Jul 2025525 PMAQI
26th Jul 2025516 PMAQI
26th Jul 2025517 PMAQI
26th Jul 2025528 PMAQI
26th Jul 2025529 PMAQI
26th Jul 20255310 PMAQI
26th Jul 20255211 PMAQI
27th Jul 20255212 AMAQI
27th Jul 2025531 AMAQI
27th Jul 2025512 AMAQI
27th Jul 2025473 AMAQI
27th Jul 2025504 AMAQI
21°C15/27°C
27th Jul 2025515 AMAQI
27th Jul 2025526 AMAQI
27th Jul 2025547 AMAQI
27th Jul 2025548 AMAQI
27th Jul 2025549 AMAQI
27th Jul 20255410 AMAQI
27th Jul 20255411 AMAQI
27th Jul 20255612 PMAQI
27th Jul 2025571 PMAQI
27th Jul 2025612 PMAQI
27th Jul 2025653 PMAQI
27th Jul 2025614 PMAQI
27th Jul 2025595 PMAQI
27th Jul 2025576 PMAQI
27th Jul 2025587 PMAQI
27th Jul 2025588 PMAQI
27th Jul 2025569 PMAQI
27th Jul 20255410 PMAQI
27th Jul 20255511 PMAQI
28th Jul 20255412 AMAQI
28th Jul 2025531 AMAQI
28th Jul 2025532 AMAQI
28th Jul 2025533 AMAQI
28th Jul 2025524 AMAQI
15°C9/22°C
28th Jul 2025545 AMAQI
28th Jul 2025566 AMAQI
28th Jul 2025577 AMAQI
28th Jul 2025588 AMAQI
28th Jul 2025589 AMAQI
28th Jul 20255710 AMAQI
28th Jul 20255711 AMAQI
28th Jul 20255812 PMAQI
28th Jul 2025571 PMAQI
28th Jul 2025562 PMAQI
28th Jul 2025573 PMAQI
28th Jul 2025554 PMAQI
28th Jul 2025545 PMAQI
28th Jul 2025536 PMAQI
28th Jul 2025527 PMAQI
28th Jul 2025528 PMAQI
28th Jul 2025549 PMAQI
28th Jul 20255510 PMAQI
28th Jul 20255011 PMAQI
29th Jul 20255012 AMAQI
29th Jul 2025501 AMAQI
29th Jul 2025452 AMAQI
29th Jul 2025373 AMAQI
29th Jul 2025364 AMAQI
17°C13/22°C
29th Jul 2025355 AMAQI
29th Jul 2025366 AMAQI
29th Jul 2025367 AMAQI
29th Jul 2025388 AMAQI
29th Jul 2025379 AMAQI
29th Jul 20253610 AMAQI
29th Jul 20253611 AMAQI
29th Jul 20253612 PMAQI
29th Jul 2025371 PMAQI
29th Jul 2025402 PMAQI
29th Jul 2025423 PMAQI
29th Jul 2025454 PMAQI
29th Jul 2025465 PMAQI
29th Jul 2025466 PMAQI
29th Jul 2025467 PMAQI
29th Jul 2025458 PMAQI
29th Jul 2025429 PMAQI
29th Jul 20254110 PMAQI
29th Jul 20254111 PMAQI
30th Jul 20254112 AMAQI
30th Jul 2025411 AMAQI
30th Jul 2025392 AMAQI
30th Jul 2025413 AMAQI
30th Jul 2025444 AMAQI
15°C14/17°C
30th Jul 2025445 AMAQI
30th Jul 2025446 AMAQI
30th Jul 2025447 AMAQI
30th Jul 2025458 AMAQI
30th Jul 2025469 AMAQI
30th Jul 20254810 AMAQI
30th Jul 20255111 AMAQI
30th Jul 20255312 PMAQI
30th Jul 2025531 PMAQI
30th Jul 2025542 PMAQI
30th Jul 2025533 PMAQI
30th Jul 2025524 PMAQI
30th Jul 2025525 PMAQI
30th Jul 2025526 PMAQI
30th Jul 2025527 PMAQI
30th Jul 2025528 PMAQI
30th Jul 2025529 PMAQI
30th Jul 20255210 PMAQI
30th Jul 20255411 PMAQI
31st Jul 20255412 AMAQI
31st Jul 2025541 AMAQI
31st Jul 2025552 AMAQI
31st Jul 2025563 AMAQI
31st Jul 2025564 AMAQI
18°C13/24°C
31st Jul 2025565 AMAQI
31st Jul 2025576 AMAQI
31st Jul 2025577 AMAQI
31st Jul 2025598 AMAQI
31st Jul 2025669 AMAQI
31st Jul 20256810 AMAQI
31st Jul 20257211 AMAQI
31st Jul 20257112 PMAQI
31st Jul 2025681 PMAQI
31st Jul 2025662 PMAQI
31st Jul 2025623 PMAQI
31st Jul 2025574 PMAQI
31st Jul 2025575 PMAQI
31st Jul 2025556 PMAQI
31st Jul 2025537 PMAQI
31st Jul 2025488 PMAQI
31st Jul 2025619 PMAQI
31st Jul 20254810 PMAQI
31st Jul 20253711 PMAQI
1st Aug 20253512 AMAQI
1st Aug 2025361 AMAQI
1st Aug 2025352 AMAQI
1st Aug 2025343 AMAQI
1st Aug 2025314 AMAQI
19°C15/24°C
1st Aug 2025305 AMAQI
1st Aug 2025296 AMAQI
1st Aug 2025257 AMAQI
1st Aug 2025228 AMAQI
1st Aug 2025209 AMAQI
1st Aug 20252010 AMAQI
1st Aug 20251911 AMAQI
1st Aug 20251812 PMAQI
1st Aug 2025171 PMAQI
1st Aug 2025182 PMAQI
1st Aug 2025203 PMAQI
1st Aug 2025184 PMAQI
1st Aug 2025195 PMAQI
1st Aug 2025176 PMAQI
1st Aug 2025177 PMAQI
1st Aug 2025178 PMAQI
1st Aug 2025209 PMAQI
1st Aug 20252010 PMAQI
1st Aug 20252211 PMAQI
2nd Aug 20252612 AMAQI
2nd Aug 2025301 AMAQI
2nd Aug 2025322 AMAQI
2nd Aug 2025313 AMAQI
2nd Aug 2025284 AMAQI
19°C14/24°C
2nd Aug 2025265 AMAQI
5 AM2nd Aug 2025256 AMAQI
2nd Aug 2025247 AMAQI
2nd Aug 2025248 AMAQI
2nd Aug 2025249 AMAQI
2nd Aug 20252410 AMAQI
2nd Aug 20252311 AMAQI
2nd Aug 20252212 PMAQI
2nd Aug 2025211 PMAQI
1 PM2nd Aug 2025202 PMAQI
2nd Aug 2025193 PMAQI
9 PM
1 AM
4 AM
--°C/°C
Day time
Avg. Highest Time
5 AM - 9 PM
32AQI
17 hours / Day
510 hours / Month
Avg. Lowest Time
5 AM - 9 PM
32AQI
17 hours / Day
510 hours / Month
In the last 30 days, during the daytime, the highest AQI was between 5 AM to 9 PM (Avg. 32), while the lowest AQI was between 5 AM to 9 PM (Avg. 32).
Night time
Avg. Highest Time
12 AM - 11 PM
32AQI
7 hours / Day
210 hours / Month
Avg. Lowest Time
12 AM - 11 PM
32AQI
7 hours / Day
210 hours / Month
In the last 30 days, during the daytime, the highest AQI was between 12 AM to 11 PM (Avg. 32), while the lowest AQI was between 12 AM to 11 PM (Avg. 32).
2025 Days Vs Air Quality
Saint John, New Brunswick, Canada
2025
97%
207
3%
6
Total number of days with different AQI categories in last 214 days in 2025 (151 days remaining)
Good
207 DaysModerate
6 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 214 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.
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
26AQI
26AQI
27AQI
27AQI
24AQI
16AQI
19AQI
32AQI
32AQI
26AQI
No. of days
Jan.Feb.Mar.Apr.MayJun.Jul.Aug.Sep.Oct.Nov.Dec.Total Days
202525AQI
31
28
31
30
31
28
2
27
4
1
207
6
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 (25) shows an average percentage change of -7.3% (improved AQI) compared to previous years: 2020 (24), 2021 (28), 2022 (29), 2023 (30), 2024 (26).
