Sint Niklaas, Flanders, Belgium 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
Sint Niklaas, Flanders, Belgium
2021
2022
2023
2024
2025
AQI
.
Days
AQI Trends: Highest and Lowest
Highest AQI recorded on
2nd Aug 2024
88AQILowest AQI recorded on
2nd Aug 2023
13AQISame Day Analysis (2nd August ):
On this day, AQI across the 5 years varied significantly: 2025 ranks 2nd highest AQI at 19 of Good air quality, showing improvement over 2024 on the same day.
Download 2024 Annual Data
World Air Quality Report
Day & Night AQI Trend: 2nd Aug - 3rd Aug 2025
Sint Niklaas, Flanders, Belgium
AQI
Day
Night
.
5 AM2nd Aug 2025
9 PM
4 AM3rd Aug 2025
Day time
Avg. Highest Time
12PM2nd Aug
22AQI
Avg. Lowest Time
8AM2nd Aug
17AQI
Night time
Avg. Highest Time
11PM2nd Aug
22AQI
Avg. Lowest Time
5AM2nd Aug
18AQI
In the last 24 hours,
Sint Niklaas's AQI reached its highest point of 22 at 12 PM during the Day, while the lowest point, 17, was recorded at 8 AM during the Day between 2nd Aug and 3rd Aug 2025.
Day & Night AQI Trend : Jul - Aug 2025
Sint Niklaas, Flanders, Belgium
JulAug
04th - 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 - 03rd03rd
Day
Night
4th Jul 2025195 AMAQI
4th Jul 2025226 AMAQI
4th Jul 2025247 AMAQI
4th Jul 2025258 AMAQI
4th Jul 2025249 AMAQI
4th Jul 20252410 AMAQI
4th Jul 20252311 AMAQI
4th Jul 20252012 PMAQI
4th Jul 2025201 PMAQI
4th Jul 2025212 PMAQI
4th Jul 2025203 PMAQI
4th Jul 2025224 PMAQI
4th Jul 2025215 PMAQI
4th Jul 2025226 PMAQI
4th Jul 2025237 PMAQI
4th Jul 2025218 PMAQI
4th Jul 2025219 PMAQI
4th Jul 20252110 PMAQI
4th Jul 20252111 PMAQI
5th Jul 20252112 AMAQI
5th Jul 2025221 AMAQI
5th Jul 2025192 AMAQI
5th Jul 2025183 AMAQI
5th Jul 2025184 AMAQI
19°C11/26°C
5th Jul 2025175 AMAQI
5th Jul 2025186 AMAQI
5th Jul 2025207 AMAQI
5th Jul 2025188 AMAQI
5th Jul 2025209 AMAQI
5th Jul 20252210 AMAQI
5th Jul 20252211 AMAQI
5th Jul 20252412 PMAQI
5th Jul 2025221 PMAQI
5th Jul 2025212 PMAQI
5th Jul 2025203 PMAQI
5th Jul 2025204 PMAQI
5th Jul 2025205 PMAQI
5th Jul 2025216 PMAQI
5th Jul 2025227 PMAQI
5th Jul 2025248 PMAQI
5th Jul 2025229 PMAQI
5th Jul 20252110 PMAQI
5th Jul 20252211 PMAQI
6th Jul 20252112 AMAQI
6th Jul 2025201 AMAQI
6th Jul 2025192 AMAQI
6th Jul 2025183 AMAQI
6th Jul 2025164 AMAQI
19°C14/26°C
6th Jul 2025155 AMAQI
6th Jul 2025166 AMAQI
6th Jul 2025177 AMAQI
6th Jul 2025168 AMAQI
6th Jul 2025189 AMAQI
6th Jul 20251810 AMAQI
6th Jul 20251811 AMAQI
6th Jul 20251612 PMAQI
6th Jul 2025161 PMAQI
6th Jul 2025182 PMAQI
6th Jul 2025183 PMAQI
6th Jul 2025184 PMAQI
6th Jul 2025185 PMAQI
6th Jul 2025186 PMAQI
6th Jul 2025227 PMAQI
6th Jul 2025188 PMAQI
6th Jul 2025189 PMAQI
6th Jul 20251810 PMAQI
6th Jul 20251811 PMAQI
7th Jul 20251812 AMAQI
7th Jul 2025181 AMAQI
7th Jul 2025172 AMAQI
7th Jul 2025183 AMAQI
7th Jul 2025204 AMAQI
16°C15/18°C
7th Jul 2025225 AMAQI
7th Jul 2025216 AMAQI
7th Jul 2025247 AMAQI
7th Jul 2025248 AMAQI
7th Jul 2025249 AMAQI
7th Jul 20251810 AMAQI
7th Jul 20251611 AMAQI
7th Jul 20251712 PMAQI
7th Jul 2025181 PMAQI
7th Jul 2025192 PMAQI
7th Jul 2025193 PMAQI
7th Jul 2025194 PMAQI
7th Jul 2025205 PMAQI
7th Jul 2025206 PMAQI
7th Jul 2025217 PMAQI
7th Jul 2025198 PMAQI
7th Jul 2025199 PMAQI
7th Jul 20251810 PMAQI
7th Jul 20252011 PMAQI
8th Jul 20251912 AMAQI
8th Jul 2025201 AMAQI
8th Jul 2025202 AMAQI
8th Jul 2025203 AMAQI
8th Jul 2025224 AMAQI
16°C12/19°C
8th Jul 2025205 AMAQI
8th Jul 2025226 AMAQI
8th Jul 2025217 AMAQI
8th Jul 2025198 AMAQI
8th Jul 2025209 AMAQI
8th Jul 20251910 AMAQI
8th Jul 20251911 AMAQI
8th Jul 20251812 PMAQI
8th Jul 2025191 PMAQI
8th Jul 2025222 PMAQI
8th Jul 2025233 PMAQI
8th Jul 2025224 PMAQI
8th Jul 2025225 PMAQI
8th Jul 2025226 PMAQI
8th Jul 2025227 PMAQI
8th Jul 2025228 PMAQI
8th Jul 2025229 PMAQI
8th Jul 20252210 PMAQI
8th Jul 20252111 PMAQI
9th Jul 20252112 AMAQI
9th Jul 2025211 AMAQI
9th Jul 2025242 AMAQI
9th Jul 2025283 AMAQI
9th Jul 2025294 AMAQI
15°C11/19°C
9th Jul 2025325 AMAQI
9th Jul 2025306 AMAQI
9th Jul 2025287 AMAQI
9th Jul 2025318 AMAQI
9th Jul 2025329 AMAQI
9th Jul 20253310 AMAQI
9th Jul 20253211 AMAQI
9th Jul 20253212 PMAQI
9th Jul 2025291 PMAQI
9th Jul 2025262 PMAQI
9th Jul 2025263 PMAQI
9th Jul 2025254 PMAQI
9th Jul 2025265 PMAQI
9th Jul 2025266 PMAQI
9th Jul 2025247 PMAQI
9th Jul 2025238 PMAQI
9th Jul 2025239 PMAQI
9th Jul 20252410 PMAQI
9th Jul 20252511 PMAQI
10th Jul 20252412 AMAQI
10th Jul 2025261 AMAQI
10th Jul 2025232 AMAQI
10th Jul 2025263 AMAQI
10th Jul 2025344 AMAQI
18°C11/24°C
10th Jul 2025325 AMAQI
10th Jul 2025316 AMAQI
10th Jul 2025337 AMAQI
10th Jul 2025368 AMAQI
10th Jul 2025389 AMAQI
10th Jul 20254210 AMAQI
10th Jul 20253911 AMAQI
10th Jul 20253812 PMAQI
10th Jul 2025291 PMAQI
10th Jul 2025242 PMAQI
10th Jul 2025233 PMAQI
10th Jul 2025244 PMAQI
10th Jul 2025235 PMAQI
10th Jul 2025226 PMAQI
10th Jul 2025237 PMAQI
10th Jul 2025238 PMAQI
10th Jul 2025239 PMAQI
10th Jul 20252510 PMAQI
10th Jul 20252611 PMAQI
11th Jul 20252612 AMAQI
11th Jul 2025311 AMAQI
11th Jul 2025202 AMAQI
11th Jul 2025183 AMAQI
11th Jul 2025214 AMAQI
20°C14/26°C
11th Jul 2025235 AMAQI
11th Jul 2025246 AMAQI
11th Jul 2025267 AMAQI
11th Jul 2025268 AMAQI
11th Jul 2025289 AMAQI
11th Jul 20253010 AMAQI
11th Jul 20252411 AMAQI
11th Jul 20252412 PMAQI
11th Jul 2025241 PMAQI
11th Jul 2025242 PMAQI
11th Jul 2025243 PMAQI
11th Jul 2025244 PMAQI
11th Jul 2025235 PMAQI
11th Jul 2025236 PMAQI
11th Jul 2025247 PMAQI
11th Jul 2025238 PMAQI
11th Jul 2025239 PMAQI
11th Jul 20252410 PMAQI
11th Jul 20252411 PMAQI
12th Jul 20252512 AMAQI
12th Jul 2025251 AMAQI
12th Jul 2025202 AMAQI
12th Jul 2025193 AMAQI
12th Jul 2025204 AMAQI
20°C15/26°C
12th Jul 2025225 AMAQI
12th Jul 2025296 AMAQI
12th Jul 2025297 AMAQI
12th Jul 2025258 AMAQI
12th Jul 2025249 AMAQI
12th Jul 20252410 AMAQI
12th Jul 20251911 AMAQI
12th Jul 20252012 PMAQI
12th Jul 2025211 PMAQI
12th Jul 2025232 PMAQI
12th Jul 2025233 PMAQI
12th Jul 2025234 PMAQI
12th Jul 2025235 PMAQI
12th Jul 2025256 PMAQI
12th Jul 2025247 PMAQI
12th Jul 2025238 PMAQI
12th Jul 2025239 PMAQI
12th Jul 20252310 PMAQI
12th Jul 20252411 PMAQI
13th Jul 20252312 AMAQI
13th Jul 2025231 AMAQI
13th Jul 2025232 AMAQI
13th Jul 2025243 AMAQI
13th Jul 2025234 AMAQI
20°C14/26°C
13th Jul 2025235 AMAQI
13th Jul 2025246 AMAQI
13th Jul 2025267 AMAQI
13th Jul 2025278 AMAQI
13th Jul 2025289 AMAQI
13th Jul 20252710 AMAQI
13th Jul 20253011 AMAQI
13th Jul 20253112 PMAQI
13th Jul 2025311 PMAQI
13th Jul 2025262 PMAQI
13th Jul 2025263 PMAQI
13th Jul 2025264 PMAQI
13th Jul 2025275 PMAQI
13th Jul 2025266 PMAQI
13th Jul 2025267 PMAQI
13th Jul 2025268 PMAQI
13th Jul 2025259 PMAQI
13th Jul 20252610 PMAQI
13th Jul 20252611 PMAQI
14th Jul 20252612 AMAQI
14th Jul 2025241 AMAQI
14th Jul 2025352 AMAQI
14th Jul 2025423 AMAQI
14th Jul 2025504 AMAQI
20°C15/26°C
14th Jul 2025505 AMAQI
14th Jul 2025526 AMAQI
14th Jul 2025527 AMAQI
14th Jul 2025548 AMAQI
14th Jul 2025549 AMAQI
14th Jul 20255310 AMAQI
14th Jul 20255511 AMAQI
14th Jul 20255512 PMAQI
14th Jul 2025501 PMAQI
14th Jul 2025462 PMAQI
14th Jul 2025453 PMAQI
14th Jul 2025414 PMAQI
14th Jul 2025295 PMAQI
14th Jul 2025276 PMAQI
14th Jul 2025287 PMAQI
14th Jul 2025298 PMAQI
14th Jul 2025309 PMAQI
14th Jul 20253510 PMAQI
14th Jul 20253511 PMAQI
15th Jul 20253512 AMAQI
15th Jul 2025411 AMAQI
15th Jul 2025242 AMAQI
15th Jul 2025183 AMAQI
15th Jul 2025204 AMAQI
21°C16/27°C
15th Jul 2025245 AMAQI
15th Jul 2025286 AMAQI
15th Jul 2025307 AMAQI
15th Jul 2025308 AMAQI
15th Jul 2025299 AMAQI
15th Jul 20253010 AMAQI
15th Jul 20253211 AMAQI
15th Jul 20252912 PMAQI
15th Jul 2025271 PMAQI
15th Jul 2025262 PMAQI
15th Jul 2025263 PMAQI
15th Jul 2025264 PMAQI
15th Jul 2025255 PMAQI
15th Jul 2025276 PMAQI
15th Jul 2025257 PMAQI
15th Jul 2025268 PMAQI
15th Jul 2025279 PMAQI
15th Jul 20252710 PMAQI
15th Jul 20252811 PMAQI
16th Jul 20252812 AMAQI
16th Jul 2025271 AMAQI
16th Jul 2025242 AMAQI
16th Jul 2025223 AMAQI
16th Jul 2025194 AMAQI
19°C13/24°C
16th Jul 2025195 AMAQI
16th Jul 2025226 AMAQI
16th Jul 2025277 AMAQI
16th Jul 2025328 AMAQI
16th Jul 2025339 AMAQI
16th Jul 20253310 AMAQI
16th Jul 20253011 AMAQI
16th Jul 20252612 PMAQI
16th Jul 2025251 PMAQI
16th Jul 2025232 PMAQI
16th Jul 2025243 PMAQI
16th Jul 2025234 PMAQI
16th Jul 2025235 PMAQI
16th Jul 2025246 PMAQI
16th Jul 2025237 PMAQI
16th Jul 2025238 PMAQI
16th Jul 2025249 PMAQI
16th Jul 20252410 PMAQI
16th Jul 20252411 PMAQI
17th Jul 20252412 AMAQI
17th Jul 2025241 AMAQI
17th Jul 2025232 AMAQI
17th Jul 2025243 AMAQI
17th Jul 2025224 AMAQI
18°C14/22°C
17th Jul 2025255 AMAQI
17th Jul 2025266 AMAQI
17th Jul 2025287 AMAQI
17th Jul 2025288 AMAQI
17th Jul 2025299 AMAQI
17th Jul 20253010 AMAQI
17th Jul 20252611 AMAQI
17th Jul 20252212 PMAQI
17th Jul 2025221 PMAQI
17th Jul 2025242 PMAQI
17th Jul 2025243 PMAQI
17th Jul 2025244 PMAQI
17th Jul 2025245 PMAQI
17th Jul 2025236 PMAQI
17th Jul 2025227 PMAQI
17th Jul 2025228 PMAQI
17th Jul 2025239 PMAQI
17th Jul 20252410 PMAQI
17th Jul 20252311 PMAQI
18th Jul 20252412 AMAQI
18th Jul 2025251 AMAQI
18th Jul 2025212 AMAQI
18th Jul 2025193 AMAQI
18th Jul 2025194 AMAQI
20°C13/26°C
18th Jul 2025205 AMAQI
18th Jul 2025236 AMAQI
18th Jul 2025267 AMAQI
18th Jul 2025288 AMAQI
18th Jul 2025299 AMAQI
18th Jul 20253210 AMAQI
18th Jul 20253111 AMAQI
18th Jul 20252912 PMAQI
18th Jul 2025261 PMAQI
18th Jul 2025242 PMAQI
18th Jul 2025233 PMAQI
18th Jul 2025234 PMAQI
18th Jul 2025235 PMAQI
18th Jul 2025236 PMAQI
18th Jul 2025237 PMAQI
18th Jul 2025248 PMAQI
18th Jul 2025249 PMAQI
18th Jul 20252510 PMAQI
18th Jul 20252511 PMAQI
19th Jul 20252412 AMAQI
19th Jul 2025231 AMAQI
19th Jul 2025302 AMAQI
19th Jul 2025323 AMAQI
19th Jul 2025324 AMAQI
23°C16/30°C
19th Jul 2025325 AMAQI
19th Jul 2025416 AMAQI
19th Jul 2025377 AMAQI
19th Jul 2025448 AMAQI
19th Jul 2025479 AMAQI
19th Jul 20255310 AMAQI
19th Jul 20253711 AMAQI
19th Jul 20253812 PMAQI
19th Jul 2025341 PMAQI
19th Jul 2025332 PMAQI
19th Jul 2025333 PMAQI
19th Jul 2025314 PMAQI
19th Jul 2025295 PMAQI
19th Jul 2025326 PMAQI
19th Jul 2025367 PMAQI
19th Jul 2025348 PMAQI
19th Jul 2025329 PMAQI
19th Jul 20253210 PMAQI
19th Jul 20253611 PMAQI
20th Jul 20253712 AMAQI
20th Jul 2025351 AMAQI
20th Jul 2025422 AMAQI
20th Jul 2025513 AMAQI
20th Jul 2025514 AMAQI
25°C18/34°C
20th Jul 2025505 AMAQI
20th Jul 2025486 AMAQI
20th Jul 2025427 AMAQI
20th Jul 2025448 AMAQI
20th Jul 2025349 AMAQI
20th Jul 20252910 AMAQI
20th Jul 20252611 AMAQI
20th Jul 20252512 PMAQI
20th Jul 2025251 PMAQI
20th Jul 2025322 PMAQI
20th Jul 2025313 PMAQI
20th Jul 2025304 PMAQI
20th Jul 2025315 PMAQI
20th Jul 2025286 PMAQI
20th Jul 2025277 PMAQI
20th Jul 2025278 PMAQI
20th Jul 2025309 PMAQI
20th Jul 20253610 PMAQI
20th Jul 20253711 PMAQI
21st Jul 20253612 AMAQI
21st Jul 2025371 AMAQI
21st Jul 2025242 AMAQI
21st Jul 2025123 AMAQI
21st Jul 2025124 AMAQI
19°C17/26°C
21st Jul 2025155 AMAQI
21st Jul 2025166 AMAQI
21st Jul 2025147 AMAQI
21st Jul 2025168 AMAQI
21st Jul 2025179 AMAQI
21st Jul 20251810 AMAQI
21st Jul 20251811 AMAQI
21st Jul 20251712 PMAQI
21st Jul 2025181 PMAQI
21st Jul 2025182 PMAQI
21st Jul 2025163 PMAQI
21st Jul 2025164 PMAQI
21st Jul 2025175 PMAQI
21st Jul 2025156 PMAQI
21st Jul 2025187 PMAQI
21st Jul 2025208 PMAQI
21st Jul 2025189 PMAQI
21st Jul 20251910 PMAQI
21st Jul 20251911 PMAQI
22nd Jul 20251912 AMAQI
22nd Jul 2025201 AMAQI
22nd Jul 2025182 AMAQI
22nd Jul 2025203 AMAQI
22nd Jul 2025224 AMAQI
18°C14/22°C
22nd Jul 2025205 AMAQI
22nd Jul 2025206 AMAQI
22nd Jul 2025187 AMAQI
22nd Jul 2025188 AMAQI
22nd Jul 2025179 AMAQI
22nd Jul 20251810 AMAQI
22nd Jul 20252011 AMAQI
22nd Jul 20251912 PMAQI
22nd Jul 2025261 PMAQI
22nd Jul 2025242 PMAQI
22nd Jul 2025203 PMAQI
22nd Jul 2025174 PMAQI
22nd Jul 2025185 PMAQI
22nd Jul 2025186 PMAQI
22nd Jul 2025187 PMAQI
22nd Jul 2025198 PMAQI
22nd Jul 2025199 PMAQI
22nd Jul 20252010 PMAQI
22nd Jul 20252011 PMAQI
23rd Jul 20252012 AMAQI
23rd Jul 2025201 AMAQI
23rd Jul 2025192 AMAQI
23rd Jul 2025183 AMAQI
23rd Jul 2025184 AMAQI
19°C13/25°C
23rd Jul 2025165 AMAQI
23rd Jul 2025176 AMAQI
23rd Jul 2025187 AMAQI
23rd Jul 2025188 AMAQI
23rd Jul 2025199 AMAQI
23rd Jul 20251910 AMAQI
23rd Jul 20252411 AMAQI
23rd Jul 20252912 PMAQI
23rd Jul 2025271 PMAQI
23rd Jul 2025262 PMAQI
23rd Jul 2025253 PMAQI
23rd Jul 2025184 PMAQI
23rd Jul 2025205 PMAQI
23rd Jul 2025226 PMAQI
23rd Jul 2025227 PMAQI
23rd Jul 2025228 PMAQI
23rd Jul 2025199 PMAQI
23rd Jul 20251810 PMAQI
23rd Jul 20251911 PMAQI
24th Jul 20252112 AMAQI
24th Jul 2025191 AMAQI
24th Jul 2025252 AMAQI
24th Jul 2025253 AMAQI
24th Jul 2025274 AMAQI
18°C13/23°C
24th Jul 2025295 AMAQI
24th Jul 2025296 AMAQI
24th Jul 2025297 AMAQI
24th Jul 2025308 AMAQI
24th Jul 2025319 AMAQI
24th Jul 20253110 AMAQI
24th Jul 20253211 AMAQI
24th Jul 20252212 PMAQI
24th Jul 2025211 PMAQI
24th Jul 2025242 PMAQI
24th Jul 2025223 PMAQI
24th Jul 2025234 PMAQI
24th Jul 2025245 PMAQI
24th Jul 2025256 PMAQI
24th Jul 2025287 PMAQI
24th Jul 2025268 PMAQI
24th Jul 2025259 PMAQI
24th Jul 20252610 PMAQI
24th Jul 20252611 PMAQI
25th Jul 20252712 AMAQI
25th Jul 2025271 AMAQI
25th Jul 2025332 AMAQI
25th Jul 2025363 AMAQI
25th Jul 2025404 AMAQI
19°C15/24°C
25th Jul 2025395 AMAQI
25th Jul 2025426 AMAQI
25th Jul 2025407 AMAQI
25th Jul 2025438 AMAQI
25th Jul 2025429 AMAQI
25th Jul 20253510 AMAQI
25th Jul 20252311 AMAQI
25th Jul 20252112 PMAQI
25th Jul 2025251 PMAQI
25th Jul 2025282 PMAQI
25th Jul 2025263 PMAQI
25th Jul 2025264 PMAQI
25th Jul 2025255 PMAQI
25th Jul 2025246 PMAQI
25th Jul 2025267 PMAQI
25th Jul 2025268 PMAQI
25th Jul 2025289 PMAQI
25th Jul 20253410 PMAQI
25th Jul 20253311 PMAQI
26th Jul 20253312 AMAQI
26th Jul 2025341 AMAQI
26th Jul 2025272 AMAQI
26th Jul 2025283 AMAQI
26th Jul 2025354 AMAQI
19°C15/24°C
26th Jul 2025345 AMAQI
26th Jul 2025376 AMAQI
26th Jul 2025447 AMAQI
26th Jul 2025498 AMAQI
26th Jul 2025499 AMAQI
26th Jul 20255010 AMAQI
26th Jul 20255211 AMAQI
26th Jul 20254712 PMAQI
26th Jul 2025421 PMAQI
26th Jul 2025382 PMAQI
26th Jul 2025363 PMAQI
26th Jul 2025364 PMAQI
26th Jul 2025475 PMAQI
26th Jul 2025456 PMAQI
26th Jul 2025477 PMAQI
26th Jul 2025408 PMAQI
26th Jul 2025389 PMAQI
26th Jul 20253410 PMAQI
26th Jul 20253611 PMAQI
27th Jul 20253512 AMAQI
27th Jul 2025361 AMAQI
27th Jul 2025292 AMAQI
27th Jul 2025223 AMAQI
27th Jul 2025224 AMAQI
20°C15/26°C
27th Jul 2025245 AMAQI
27th Jul 2025266 AMAQI
27th Jul 2025277 AMAQI
27th Jul 2025328 AMAQI
27th Jul 2025289 AMAQI
27th Jul 20252110 AMAQI
27th Jul 20252211 AMAQI
27th Jul 20252012 PMAQI
27th Jul 2025191 PMAQI
27th Jul 2025222 PMAQI
27th Jul 2025223 PMAQI
27th Jul 2025234 PMAQI
27th Jul 2025245 PMAQI
27th Jul 2025236 PMAQI
27th Jul 2025237 PMAQI
27th Jul 2025238 PMAQI
27th Jul 2025249 PMAQI
27th Jul 20252610 PMAQI
27th Jul 20252611 PMAQI
28th Jul 20252712 AMAQI
28th Jul 2025271 AMAQI
28th Jul 2025252 AMAQI
28th Jul 2025263 AMAQI
28th Jul 2025284 AMAQI
18°C15/21°C
28th Jul 2025275 AMAQI
28th Jul 2025286 AMAQI
28th Jul 2025267 AMAQI
28th Jul 2025248 AMAQI
28th Jul 2025269 AMAQI
28th Jul 20252410 AMAQI
28th Jul 20252011 AMAQI
28th Jul 20252212 PMAQI
28th Jul 2025241 PMAQI
28th Jul 2025262 PMAQI
28th Jul 2025263 PMAQI
28th Jul 2025264 PMAQI
28th Jul 2025235 PMAQI
28th Jul 2025236 PMAQI
28th Jul 2025247 PMAQI
28th Jul 2025258 PMAQI
28th Jul 2025249 PMAQI
28th Jul 20252610 PMAQI
28th Jul 20252611 PMAQI
29th Jul 20252612 AMAQI
29th Jul 2025261 AMAQI
29th Jul 2025292 AMAQI
29th Jul 2025343 AMAQI
29th Jul 2025334 AMAQI
17°C14/22°C
29th Jul 2025345 AMAQI
29th Jul 2025326 AMAQI
29th Jul 2025327 AMAQI
29th Jul 2025338 AMAQI
29th Jul 2025399 AMAQI
29th Jul 20255010 AMAQI
29th Jul 20255411 AMAQI
29th Jul 20255412 PMAQI
29th Jul 2025471 PMAQI
29th Jul 2025342 PMAQI
29th Jul 2025333 PMAQI
29th Jul 2025294 PMAQI
29th Jul 2025255 PMAQI
29th Jul 2025236 PMAQI
29th Jul 2025247 PMAQI
29th Jul 2025248 PMAQI
29th Jul 2025269 PMAQI
29th Jul 20253210 PMAQI
29th Jul 20253211 PMAQI
30th Jul 20253112 AMAQI
30th Jul 2025341 AMAQI
30th Jul 2025252 AMAQI
30th Jul 2025243 AMAQI
30th Jul 2025304 AMAQI
18°C13/24°C
30th Jul 2025345 AMAQI
30th Jul 2025416 AMAQI
30th Jul 2025427 AMAQI
30th Jul 2025438 AMAQI
30th Jul 2025459 AMAQI
30th Jul 20254310 AMAQI
30th Jul 20253011 AMAQI
30th Jul 20252412 PMAQI
30th Jul 2025201 PMAQI
30th Jul 2025252 PMAQI
30th Jul 2025243 PMAQI
30th Jul 2025244 PMAQI
30th Jul 2025245 PMAQI
30th Jul 2025246 PMAQI
30th Jul 2025247 PMAQI
30th Jul 2025248 PMAQI
30th Jul 2025249 PMAQI
30th Jul 20252510 PMAQI
30th Jul 20252511 PMAQI
31st Jul 20252512 AMAQI
31st Jul 2025251 AMAQI
31st Jul 2025252 AMAQI
31st Jul 2025253 AMAQI
31st Jul 2025254 AMAQI
18°C13/23°C
31st Jul 2025285 AMAQI
31st Jul 2025316 AMAQI
31st Jul 2025337 AMAQI
31st Jul 2025368 AMAQI
31st Jul 2025349 AMAQI
31st Jul 20253810 AMAQI
31st Jul 20253811 AMAQI
31st Jul 20252812 PMAQI
31st Jul 2025261 PMAQI
31st Jul 2025222 PMAQI
31st Jul 2025223 PMAQI
31st Jul 2025224 PMAQI
31st Jul 2025225 PMAQI
31st Jul 2025206 PMAQI
31st Jul 2025207 PMAQI
31st Jul 2025218 PMAQI
31st Jul 2025239 PMAQI
31st Jul 20252310 PMAQI
31st Jul 20252211 PMAQI
1st Aug 20252112 AMAQI
1st Aug 2025221 AMAQI
1st Aug 2025192 AMAQI
1st Aug 2025203 AMAQI
1st Aug 2025204 AMAQI
19°C16/24°C
1st Aug 2025225 AMAQI
1st Aug 2025196 AMAQI
1st Aug 2025247 AMAQI
1st Aug 2025278 AMAQI
1st Aug 2025269 AMAQI
1st Aug 20252410 AMAQI
1st Aug 20252211 AMAQI
1st Aug 20251812 PMAQI
1st Aug 2025201 PMAQI
1st Aug 2025222 PMAQI
1st Aug 2025203 PMAQI
1st Aug 2025224 PMAQI
1st Aug 2025185 PMAQI
1st Aug 2025196 PMAQI
1st Aug 2025207 PMAQI
1st Aug 2025208 PMAQI
1st Aug 2025229 PMAQI
1st Aug 20252210 PMAQI
1st Aug 20252211 PMAQI
2nd Aug 20252212 AMAQI
2nd Aug 2025221 AMAQI
2nd Aug 2025192 AMAQI
2nd Aug 2025183 AMAQI
2nd Aug 2025184 AMAQI
18°C14/22°C
2nd Aug 2025185 AMAQI
2nd Aug 2025196 AMAQI
2nd Aug 2025197 AMAQI
2nd Aug 2025178 AMAQI
2nd Aug 2025199 AMAQI
2nd Aug 20252010 AMAQI
2nd Aug 20251811 AMAQI
2nd Aug 20252212 PMAQI
2nd Aug 2025211 PMAQI
2nd Aug 2025202 PMAQI
2nd Aug 2025183 PMAQI
2nd Aug 2025194 PMAQI
2nd Aug 2025205 PMAQI
2nd Aug 2025206 PMAQI
2nd Aug 2025197 PMAQI
2nd Aug 2025198 PMAQI
2nd Aug 2025209 PMAQI
2nd Aug 20252110 PMAQI
2nd Aug 20252211 PMAQI
3rd Aug 20252112 AMAQI
3rd Aug 2025191 AMAQI
3rd Aug 2025202 AMAQI
3rd Aug 2025223 AMAQI
3rd Aug 2025194 AMAQI
17°C14/20°C
3rd Aug 2025225 AMAQI
5 AM3rd Aug 2025226 AMAQI
3rd Aug 2025217 AMAQI
3rd Aug 2025218 AMAQI
3rd Aug 2025239 AMAQI
3rd Aug 20252610 AMAQI
3rd Aug 20252611 AMAQI
3rd Aug 20252712 PMAQI
3rd Aug 2025221 PMAQI
1 PM3rd Aug 2025222 PMAQI
3rd Aug 2025213 PMAQI
3rd Aug 2025224 PMAQI
3rd Aug 2025225 PMAQI
3rd Aug 2025256 PMAQI
3rd Aug 2025227 PMAQI
3rd Aug 2025268 PMAQI
9 PM
1 AM
4 AM
--°C/°C
Day time
Avg. Highest Time
6 AM - 10 AM
29AQI
5 hours / Day
150 hours / Month
Avg. Lowest Time
11 AM - 9 PM
25AQI
11 hours / Day
330 hours / Month
In the last 30 days, during the daytime, the highest AQI was between 6 AM to 10 AM (Avg. 29), while the lowest AQI was between 11 AM to 9 PM (Avg. 25).
Night time
Avg. Highest Time
12 AM - 1 AM
26AQI
2 hours / Day
60 hours / Month
Avg. Lowest Time
2 AM - 11 PM
25AQI
5 hours / Day
150 hours / Month
In the last 30 days, during the daytime, the highest AQI was between 12 AM to 1 AM (Avg. 26), while the lowest AQI was between 2 AM to 11 PM (Avg. 25).
2025 Days Vs Air Quality
Sint Niklaas, Flanders, Belgium
2025
68%
146
28%
59
4%
9
Total number of days with different AQI categories in last 215 days in 2025 (150 days remaining)
Good
146 DaysModerate
59 DaysPoor
9 DaysUnhealthy
0 DaysSevere
0 DaysHazardous
0 DaysUnder WHO’s Safe Air Quality Limits: 68%
Health Risk Level:
Moderate
In 2025, 68% of 215 days were within WHO’s safe air quality limits, and 32% exceeded them. The risk of health issues is Moderate, particularly for individuals with respiratory or heart conditions.
Annual Air Quality Insights
Sint Niklaas, Flanders, Belgium
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
30AQI
30AQI
2nd January 2025
23AQI
23AQI
3rd January 2025
27AQI
27AQI
4th January 2025
58AQI
58AQI
5th January 2025
33AQI
33AQI
6th January 2025
21AQI
21AQI
7th January 2025
20AQI
20AQI
8th January 2025
32AQI
32AQI
9th January 2025
28AQI
28AQI
10th January 2025
57AQI
57AQI
11th January 2025
99AQI
99AQI
12th January 2025
65AQI
65AQI
13th January 2025
69AQI
69AQI
14th January 2025
86AQI
86AQI
15th January 2025
93AQI
93AQI
16th January 2025
62AQI
62AQI
17th January 2025
81AQI
81AQI
18th January 2025
74AQI
74AQI
19th January 2025
93AQI
93AQI
20th January 2025
112AQI
112AQI
21st January 2025
85AQI
85AQI
22nd January 2025
78AQI
78AQI
23rd January 2025
59AQI
59AQI
24th January 2025
27AQI
27AQI
25th January 2025
32AQI
32AQI
26th January 2025
28AQI
28AQI
27th January 2025
17AQI
17AQI
28th January 2025
20AQI
20AQI
29th January 2025
26AQI
26AQI
30th January 2025
33AQI
33AQI
31st January 2025
51AQI
51AQI
1st February 2025
60AQI
60AQI
2nd February 2025
68AQI
68AQI
3rd February 2025
104AQI
104AQI
4th February 2025
70AQI
70AQI
5th February 2025
76AQI
76AQI
6th February 2025
65AQI
65AQI
7th February 2025
55AQI
55AQI
8th February 2025
67AQI
67AQI
9th February 2025
64AQI
64AQI
10th February 2025
138AQI
138AQI
11th February 2025
92AQI
92AQI
12th February 2025
86AQI
86AQI
13th February 2025
106AQI
106AQI
14th February 2025
118AQI
118AQI
15th February 2025
88AQI
88AQI
16th February 2025
61AQI
61AQI
17th February 2025
70AQI
70AQI
18th February 2025
78AQI
78AQI
19th February 2025
81AQI
81AQI
20th February 2025
80AQI
80AQI
21st February 2025
53AQI
53AQI
22nd February 2025
48AQI
48AQI
23rd February 2025
43AQI
43AQI
24th February 2025
23AQI
23AQI
25th February 2025
50AQI
50AQI
26th February 2025
36AQI
36AQI
27th February 2025
29AQI
29AQI
28th February 2025
37AQI
37AQI
1st March 2025
42AQI
42AQI
2nd March 2025
65AQI
65AQI
3rd March 2025
92AQI
92AQI
4th March 2025
129AQI
129AQI
5th March 2025
107AQI
107AQI
6th March 2025
84AQI
84AQI
7th March 2025
59AQI
59AQI
8th March 2025
71AQI
71AQI
9th March 2025
89AQI
89AQI
10th March 2025
125AQI
125AQI
11th March 2025
83AQI
83AQI
12th March 2025
32AQI
32AQI
13th March 2025
40AQI
40AQI
14th March 2025
32AQI
32AQI
15th March 2025
42AQI
42AQI
16th March 2025
44AQI
44AQI
17th March 2025
38AQI
38AQI
18th March 2025
34AQI
34AQI
19th March 2025
48AQI
48AQI
20th March 2025
57AQI
57AQI
21st March 2025
62AQI
62AQI
22nd March 2025
38AQI
38AQI
23rd March 2025
24AQI
24AQI
24th March 2025
84AQI
84AQI
25th March 2025
121AQI
121AQI
26th March 2025
57AQI
57AQI
27th March 2025
66AQI
66AQI
28th March 2025
75AQI
75AQI
29th March 2025
39AQI
39AQI
30th March 2025
36AQI
36AQI
31st March 2025
36AQI
36AQI
1st April 2025
39AQI
39AQI
2nd April 2025
42AQI
42AQI
3rd April 2025
56AQI
56AQI
4th April 2025
62AQI
62AQI
5th April 2025
46AQI
46AQI
6th April 2025
20AQI
20AQI
7th April 2025
34AQI
34AQI
8th April 2025
48AQI
48AQI
9th April 2025
55AQI
55AQI
10th April 2025
47AQI
47AQI
11th April 2025
62AQI
62AQI
12th April 2025
74AQI
74AQI
13th April 2025
49AQI
49AQI
14th April 2025
28AQI
28AQI
15th April 2025
39AQI
39AQI
16th April 2025
24AQI
24AQI
17th April 2025
39AQI
39AQI
18th April 2025
49AQI
49AQI
19th April 2025
44AQI
44AQI
20th April 2025
48AQI
48AQI
21st April 2025
45AQI
45AQI
22nd April 2025
57AQI
57AQI
23rd April 2025
39AQI
39AQI
24th April 2025
63AQI
63AQI
25th April 2025
51AQI
51AQI
26th April 2025
65AQI
65AQI
27th April 2025
46AQI
46AQI
28th April 2025
57AQI
57AQI
29th April 2025
52AQI
52AQI
30th April 2025
49AQI
49AQI
1st May 2025
48AQI
48AQI
2nd May 2025
70AQI
70AQI
3rd May 2025
50AQI
50AQI
4th May 2025
22AQI
22AQI
5th May 2025
23AQI
23AQI
6th May 2025
23AQI
23AQI
7th May 2025
32AQI
32AQI
8th May 2025
27AQI
27AQI
9th May 2025
25AQI
25AQI
10th May 2025
26AQI
26AQI
11th May 2025
26AQI
26AQI
12th May 2025
23AQI
23AQI
13th May 2025
40AQI
40AQI
14th May 2025
42AQI
42AQI
15th May 2025
44AQI
44AQI
16th May 2025
36AQI
36AQI
17th May 2025
36AQI
36AQI
18th May 2025
38AQI
38AQI
19th May 2025
35AQI
35AQI
20th May 2025
30AQI
30AQI
21st May 2025
42AQI
42AQI
22nd May 2025
30AQI
30AQI
23rd May 2025
20AQI
20AQI
24th May 2025
29AQI
29AQI
25th May 2025
20AQI
20AQI
26th May 2025
30AQI
30AQI
27th May 2025
20AQI
20AQI
28th May 2025
22AQI
22AQI
29th May 2025
27AQI
27AQI
30th May 2025
25AQI
25AQI
31st May 2025
41AQI
41AQI
1st June 2025
39AQI
39AQI
2nd June 2025
28AQI
28AQI
3rd June 2025
27AQI
27AQI
4th June 2025
22AQI
22AQI
5th June 2025
18AQI
18AQI
6th June 2025
18AQI
18AQI
7th June 2025
14AQI
14AQI
8th June 2025
18AQI
18AQI
9th June 2025
44AQI
44AQI
10th June 2025
57AQI
57AQI
11th June 2025
42AQI
42AQI
12th June 2025
47AQI
47AQI
13th June 2025
55AQI
55AQI
14th June 2025
49AQI
49AQI
15th June 2025
35AQI
35AQI
16th June 2025
35AQI
35AQI
17th June 2025
36AQI
36AQI
18th June 2025
35AQI
35AQI
19th June 2025
36AQI
36AQI
20th June 2025
34AQI
34AQI
21st June 2025
32AQI
32AQI
22nd June 2025
29AQI
29AQI
23rd June 2025
23AQI
23AQI
24th June 2025
24AQI
24AQI
25th June 2025
23AQI
23AQI
26th June 2025
27AQI
27AQI
27th June 2025
28AQI
28AQI
28th June 2025
20AQI
20AQI
29th June 2025
18AQI
18AQI
30th June 2025
25AQI
25AQI
1st July 2025
31AQI
31AQI
2nd July 2025
38AQI
38AQI
3rd July 2025
24AQI
24AQI
4th July 2025
22AQI
22AQI
5th July 2025
21AQI
21AQI
6th July 2025
18AQI
18AQI
7th July 2025
20AQI
20AQI
8th July 2025
21AQI
21AQI
9th July 2025
26AQI
26AQI
10th July 2025
27AQI
27AQI
11th July 2025
24AQI
24AQI
12th July 2025
23AQI
23AQI
13th July 2025
25AQI
25AQI
14th July 2025
38AQI
38AQI
15th July 2025
28AQI
28AQI
16th July 2025
25AQI
25AQI
17th July 2025
24AQI
24AQI
18th July 2025
24AQI
24AQI
19th July 2025
34AQI
34AQI
20th July 2025
36AQI
36AQI
21st July 2025
19AQI
19AQI
22nd July 2025
20AQI
20AQI
23rd July 2025
20AQI
20AQI
24th July 2025
26AQI
26AQI
25th July 2025
31AQI
31AQI
26th July 2025
39AQI
39AQI
27th July 2025
25AQI
25AQI
28th July 2025
25AQI
25AQI
29th July 2025
33AQI
33AQI
30th July 2025
29AQI
29AQI
31st July 2025
26AQI
26AQI
1st August 2025
21AQI
21AQI
2nd August 2025
19AQI
19AQI
52AQI
70AQI
63AQI
48AQI
32AQI
31AQI
27AQI
20AQI
No. of days
Jan.Feb.Mar.Apr.MayJun.Jul.Aug.Sep.Oct.Nov.Dec.Total Days
202546AQI
15
15
1
7
17
4
14
13
4
19
11
30
1
28
2
31
2
146
59
9
Highest AQI recorded in
February70AQI
Lowest AQI recorded in
August20AQI
202438AQI
18
13
26
3
21
10
30
20
11
24
6
29
2
28
3
22
8
28
3
17
13
23
8
286
80
Highest AQI recorded in
January46AQI
Lowest AQI recorded in
April23AQI
202337AQI
3
23
8
20
10
22
9
19
11
30
1
29
2
24
5
1
27
4
27
2
21
10
245
62
1
Highest AQI recorded in
May47AQI
Lowest AQI recorded in
July26AQI
202244AQI
16
12
3
19
2
7
20
4
18
12
19
12
28
2
23
1
1
27
1
23
6
4
185
68
7
Highest AQI recorded in
March73AQI
Lowest AQI recorded in
November25AQI
202150AQI
14
16
7
20
14
13
3
1
15
12
3
26
5
12
18
19
12
25
6
14
16
22
9
16
14
16
15
200
156
6
1
Highest AQI recorded in
March65AQI
Lowest AQI recorded in
August37AQI
202044AQI
7
4
2
6
14
1
17
1
23
7
29
2
20
9
2
21
7
2
27
4
14
12
4
22
7
1
186
67
12
Highest AQI recorded in
November60AQI
Lowest AQI recorded in
July28AQI
Most & Least Polluted Years Over the Last 6 Years
Most Polluted Year Recorded
2021(Avg.)
50AQILeast Polluted Year Recorded
2023(Avg.)
37AQISint Niklaas's annual 2025 AQI (46) shows an average percentage change of 8.1% (worsened AQI) compared to previous years: 2020 (44), 2021 (50), 2022 (44), 2023 (37), 2024 (38).
