Country Background
HistoryAQIPM₂.₅PM₁₀COSO₂NO₂O₃

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+

July Air Quality Analysis

Sint Niklaas, Flanders, Belgium

2022
2023
2024
2025
2026
AQI
.
Days

AQI Trends: Highest and Lowest

Highest AQI recorded on
20th Jul 2022
76AQI
Lowest AQI recorded on
27th Jul 2023
11AQI

Same Day Analysis (30th July):
On this day, AQI across the 5 years varied significantly: 2026 ranks 2nd highest AQI at 37 of Good air quality, showing improvement over 2024 on the same day.

Day & Night AQI Trend: 30th Jul - 31st Jul 2026

Sint Niklaas, Flanders, Belgium

AQI
Day
Night
.

5 AM30th Jul 2026

9 PM

4 AM31st Jul 2026

Day time
Avg. Highest Time
4PM30th Jul

53AQI

Avg. Lowest Time
7AM30th Jul

21AQI

Night time
Avg. Highest Time
4AM31st Jul

57AQI

Avg. Lowest Time
5AM30th Jul

23AQI

In the last 24 hours,

Sint Niklaas's AQI reached its highest point of 57 at 4 AM during the Night, while the lowest point, 21, was recorded at 7 AM during the Day between 30th Jul and 31st Jul 2026.

Day & Night AQI Trend : Jul 2026

Sint Niklaas, Flanders, Belgium

Jul
02nd - 03rd03rd - 04th04th - 05th05th - 06th06th - 07th07th - 08th08th - 09th09th - 10th10th - 11th11th - 12th12th - 13th13th - 14th14th - 15th15th - 16th16th - 17th17th - 18th18th - 19th19th - 20th20th - 21st21st - 22nd22nd - 23rd23rd - 24th24th - 25th25th - 26th26th - 27th27th - 28th28th - 29th29th - 30th30th - 31st31st
Day
Night
2nd Jul 2026155 AMAQI
2nd Jul 2026206 AMAQI
2nd Jul 2026167 AMAQI
2nd Jul 2026228 AMAQI
2nd Jul 2026229 AMAQI
2nd Jul 20262210 AMAQI
2nd Jul 20262411 AMAQI
2nd Jul 20262712 PMAQI
2nd Jul 2026241 PMAQI
2nd Jul 2026262 PMAQI
2nd Jul 2026243 PMAQI
2nd Jul 2026174 PMAQI
2nd Jul 2026245 PMAQI
2nd Jul 202686 PMAQI
2nd Jul 202687 PMAQI
2nd Jul 2026258 PMAQI
2nd Jul 2026229 PMAQI
2nd Jul 20262010 PMAQI
2nd Jul 20261911 PMAQI
3rd Jul 2026912 AMAQI
3rd Jul 2026241 AMAQI
3rd Jul 2026142 AMAQI
3rd Jul 2026163 AMAQI
3rd Jul 2026144 AMAQI

18°C15/23°C

3rd Jul 2026155 AMAQI
3rd Jul 2026246 AMAQI
3rd Jul 2026247 AMAQI
3rd Jul 2026258 AMAQI
3rd Jul 2026289 AMAQI
3rd Jul 20262710 AMAQI
3rd Jul 20262411 AMAQI
3rd Jul 20262412 PMAQI
3rd Jul 2026241 PMAQI
3rd Jul 2026242 PMAQI
3rd Jul 2026253 PMAQI
3rd Jul 2026284 PMAQI
3rd Jul 2026205 PMAQI
3rd Jul 2026286 PMAQI
3rd Jul 2026207 PMAQI
3rd Jul 2026208 PMAQI
3rd Jul 2026229 PMAQI
3rd Jul 20262410 PMAQI
3rd Jul 20262411 PMAQI
4th Jul 20262412 AMAQI
4th Jul 2026221 AMAQI
4th Jul 2026142 AMAQI
4th Jul 202693 AMAQI
4th Jul 202684 AMAQI

17°C11/22°C

4th Jul 2026145 AMAQI
4th Jul 2026246 AMAQI
4th Jul 2026127 AMAQI
4th Jul 202688 AMAQI
4th Jul 202689 AMAQI
4th Jul 20261210 AMAQI
4th Jul 20261311 AMAQI
4th Jul 20261812 PMAQI
4th Jul 2026271 PMAQI
4th Jul 2026252 PMAQI
4th Jul 2026263 PMAQI
4th Jul 2026224 PMAQI
4th Jul 2026215 PMAQI
4th Jul 2026106 PMAQI
4th Jul 2026147 PMAQI
4th Jul 2026158 PMAQI
4th Jul 2026149 PMAQI
4th Jul 20261710 PMAQI
4th Jul 20261811 PMAQI
5th Jul 20262012 AMAQI
5th Jul 2026241 AMAQI
5th Jul 2026162 AMAQI
5th Jul 2026193 AMAQI
5th Jul 2026184 AMAQI

20°C13/26°C

5th Jul 2026185 AMAQI
5th Jul 2026186 AMAQI
5th Jul 2026217 AMAQI
5th Jul 2026248 AMAQI
5th Jul 2026249 AMAQI
5th Jul 20261710 AMAQI
5th Jul 20261211 AMAQI
5th Jul 2026412 PMAQI
5th Jul 202641 PMAQI
5th Jul 202652 PMAQI
5th Jul 202653 PMAQI
5th Jul 202664 PMAQI
5th Jul 202675 PMAQI
5th Jul 202686 PMAQI
5th Jul 2026167 PMAQI
5th Jul 202688 PMAQI
5th Jul 202689 PMAQI
5th Jul 2026410 PMAQI
5th Jul 2026511 PMAQI
6th Jul 20261612 AMAQI
6th Jul 2026151 AMAQI
6th Jul 202682 AMAQI
6th Jul 2026123 AMAQI
6th Jul 2026184 AMAQI

20°C17/23°C

6th Jul 2026195 AMAQI
6th Jul 2026196 AMAQI
6th Jul 2026227 AMAQI
6th Jul 2026258 AMAQI
6th Jul 2026229 AMAQI
6th Jul 20262210 AMAQI
6th Jul 20261911 AMAQI
6th Jul 20262312 PMAQI
6th Jul 2026261 PMAQI
6th Jul 2026262 PMAQI
6th Jul 2026243 PMAQI
6th Jul 2026164 PMAQI
6th Jul 2026105 PMAQI
6th Jul 202696 PMAQI
6th Jul 202687 PMAQI
6th Jul 2026108 PMAQI
6th Jul 2026109 PMAQI
6th Jul 20261210 PMAQI
6th Jul 20261011 PMAQI
7th Jul 20261012 AMAQI
7th Jul 202691 AMAQI
7th Jul 202682 AMAQI
7th Jul 202683 AMAQI
7th Jul 202684 AMAQI

23°C15/30°C

7th Jul 202685 AMAQI
7th Jul 202686 AMAQI
7th Jul 2026167 AMAQI
7th Jul 2026288 AMAQI
7th Jul 2026269 AMAQI
7th Jul 20262510 AMAQI
7th Jul 20262211 AMAQI
7th Jul 20262812 PMAQI
7th Jul 2026131 PMAQI
7th Jul 2026112 PMAQI
7th Jul 2026103 PMAQI
7th Jul 2026104 PMAQI
7th Jul 2026105 PMAQI
7th Jul 202696 PMAQI
7th Jul 2026107 PMAQI
7th Jul 2026108 PMAQI
7th Jul 2026189 PMAQI
7th Jul 20261910 PMAQI
7th Jul 20262911 PMAQI
8th Jul 20262812 AMAQI
8th Jul 2026281 AMAQI
8th Jul 2026232 AMAQI
8th Jul 2026223 AMAQI
8th Jul 2026224 AMAQI

22°C18/27°C

8th Jul 2026245 AMAQI
8th Jul 2026226 AMAQI
8th Jul 2026247 AMAQI
8th Jul 2026268 AMAQI
8th Jul 2026279 AMAQI
8th Jul 20262410 AMAQI
8th Jul 20262211 AMAQI
8th Jul 20261912 PMAQI
8th Jul 2026141 PMAQI
8th Jul 2026202 PMAQI
8th Jul 2026183 PMAQI
8th Jul 2026124 PMAQI
8th Jul 2026105 PMAQI
8th Jul 2026106 PMAQI
8th Jul 2026107 PMAQI
8th Jul 202688 PMAQI
8th Jul 2026169 PMAQI
8th Jul 20261810 PMAQI
8th Jul 20262411 PMAQI
9th Jul 20262012 AMAQI
9th Jul 2026241 AMAQI
9th Jul 2026222 AMAQI
9th Jul 2026203 AMAQI
9th Jul 2026224 AMAQI

21°C16/26°C

9th Jul 2026185 AMAQI
9th Jul 2026206 AMAQI
9th Jul 2026217 AMAQI
9th Jul 2026248 AMAQI
9th Jul 2026249 AMAQI
9th Jul 20262810 AMAQI
9th Jul 20262611 AMAQI
9th Jul 20262612 PMAQI
9th Jul 2026221 PMAQI
9th Jul 2026252 PMAQI
9th Jul 2026263 PMAQI
9th Jul 2026284 PMAQI
9th Jul 2026305 PMAQI
9th Jul 2026286 PMAQI
9th Jul 2026287 PMAQI
9th Jul 2026258 PMAQI
9th Jul 2026269 PMAQI
9th Jul 20262710 PMAQI
9th Jul 20262611 PMAQI
10th Jul 20262312 AMAQI
10th Jul 2026281 AMAQI
10th Jul 2026302 AMAQI
10th Jul 2026263 AMAQI
10th Jul 2026284 AMAQI

22°C16/30°C

10th Jul 2026265 AMAQI
10th Jul 2026246 AMAQI
10th Jul 2026227 AMAQI
10th Jul 2026228 AMAQI
10th Jul 2026259 AMAQI
10th Jul 20262910 AMAQI
10th Jul 20262811 AMAQI
10th Jul 20263012 PMAQI
10th Jul 2026311 PMAQI
10th Jul 2026302 PMAQI
10th Jul 2026303 PMAQI
10th Jul 2026314 PMAQI
10th Jul 2026325 PMAQI
10th Jul 2026306 PMAQI
10th Jul 2026307 PMAQI
10th Jul 2026328 PMAQI
10th Jul 2026299 PMAQI
10th Jul 20263010 PMAQI
10th Jul 20263011 PMAQI
11th Jul 20263012 AMAQI
11th Jul 2026321 AMAQI
11th Jul 2026322 AMAQI
11th Jul 2026303 AMAQI
11th Jul 2026284 AMAQI

24°C17/30°C

11th Jul 2026265 AMAQI
11th Jul 2026226 AMAQI
11th Jul 2026247 AMAQI
11th Jul 2026208 AMAQI
11th Jul 2026249 AMAQI
11th Jul 20262910 AMAQI
11th Jul 20262711 AMAQI
11th Jul 20263212 PMAQI
11th Jul 2026241 PMAQI
11th Jul 2026302 PMAQI
11th Jul 2026293 PMAQI
11th Jul 2026314 PMAQI
11th Jul 2026285 PMAQI
11th Jul 2026296 PMAQI
11th Jul 2026307 PMAQI
11th Jul 2026308 PMAQI
11th Jul 2026269 PMAQI
11th Jul 20263010 PMAQI
11th Jul 20262811 PMAQI
12th Jul 20263012 AMAQI
12th Jul 2026301 AMAQI
12th Jul 2026282 AMAQI
12th Jul 2026283 AMAQI
12th Jul 2026274 AMAQI

24°C16/31°C

12th Jul 2026245 AMAQI
12th Jul 2026226 AMAQI
12th Jul 2026227 AMAQI
12th Jul 2026208 AMAQI
12th Jul 2026239 AMAQI
12th Jul 20262610 AMAQI
12th Jul 20262611 AMAQI
12th Jul 20262812 PMAQI
12th Jul 2026261 PMAQI
12th Jul 2026272 PMAQI
12th Jul 2026293 PMAQI
12th Jul 2026294 PMAQI
12th Jul 2026285 PMAQI
12th Jul 2026266 PMAQI
12th Jul 2026307 PMAQI
12th Jul 2026268 PMAQI
12th Jul 2026279 PMAQI
12th Jul 20262810 PMAQI
12th Jul 20262611 PMAQI
13th Jul 20262812 AMAQI
13th Jul 2026261 AMAQI
13th Jul 2026282 AMAQI
13th Jul 2026283 AMAQI
13th Jul 2026244 AMAQI

25°C18/32°C

13th Jul 2026265 AMAQI
13th Jul 2026216 AMAQI
13th Jul 2026227 AMAQI
13th Jul 2026208 AMAQI
13th Jul 2026249 AMAQI
13th Jul 20262910 AMAQI
13th Jul 20263011 AMAQI
13th Jul 20262812 PMAQI
13th Jul 2026281 PMAQI
13th Jul 2026302 PMAQI
13th Jul 2026313 PMAQI
13th Jul 2026334 PMAQI
13th Jul 2026305 PMAQI
13th Jul 2026306 PMAQI
13th Jul 2026307 PMAQI
13th Jul 2026308 PMAQI
13th Jul 2026289 PMAQI
13th Jul 20262810 PMAQI
13th Jul 20262811 PMAQI
14th Jul 20263012 AMAQI
14th Jul 2026281 AMAQI
14th Jul 2026322 AMAQI
14th Jul 2026313 AMAQI
14th Jul 2026244 AMAQI

23°C14/31°C

14th Jul 2026265 AMAQI
14th Jul 2026226 AMAQI
14th Jul 2026207 AMAQI
14th Jul 2026198 AMAQI
14th Jul 2026249 AMAQI
14th Jul 20262810 AMAQI
14th Jul 20263111 AMAQI
14th Jul 20263112 PMAQI
14th Jul 2026301 PMAQI
14th Jul 2026322 PMAQI
14th Jul 2026323 PMAQI
14th Jul 2026344 PMAQI
14th Jul 2026345 PMAQI
14th Jul 2026326 PMAQI
14th Jul 2026327 PMAQI
14th Jul 2026298 PMAQI
14th Jul 2026269 PMAQI
14th Jul 20263010 PMAQI
14th Jul 20262611 PMAQI
15th Jul 20263112 AMAQI
15th Jul 2026301 AMAQI
15th Jul 2026282 AMAQI
15th Jul 2026283 AMAQI
15th Jul 2026234 AMAQI

26°C18/33°C

15th Jul 2026225 AMAQI
15th Jul 2026206 AMAQI
15th Jul 2026207 AMAQI
15th Jul 2026218 AMAQI
15th Jul 2026319 AMAQI
15th Jul 20262910 AMAQI
15th Jul 20261911 AMAQI
15th Jul 20261712 PMAQI
15th Jul 2026191 PMAQI
15th Jul 2026192 PMAQI
15th Jul 2026183 PMAQI
15th Jul 2026164 PMAQI
15th Jul 2026175 PMAQI
15th Jul 2026206 PMAQI
15th Jul 2026187 PMAQI
15th Jul 2026238 PMAQI
15th Jul 2026369 PMAQI
15th Jul 20262310 PMAQI
15th Jul 20261811 PMAQI
16th Jul 20262712 AMAQI
16th Jul 2026251 AMAQI
16th Jul 2026312 AMAQI
16th Jul 2026273 AMAQI
16th Jul 2026294 AMAQI

25°C18/31°C

16th Jul 2026405 AMAQI
16th Jul 2026186 AMAQI
16th Jul 2026147 AMAQI
16th Jul 2026188 AMAQI
16th Jul 2026199 AMAQI
16th Jul 20261610 AMAQI
16th Jul 20261411 AMAQI
16th Jul 20261712 PMAQI
16th Jul 2026151 PMAQI
16th Jul 2026202 PMAQI
16th Jul 2026183 PMAQI
16th Jul 2026204 PMAQI
16th Jul 2026235 PMAQI
16th Jul 2026266 PMAQI
16th Jul 2026247 PMAQI
16th Jul 2026178 PMAQI
16th Jul 2026209 PMAQI
16th Jul 20262410 PMAQI
16th Jul 20262811 PMAQI
17th Jul 20262812 AMAQI
17th Jul 2026221 AMAQI
17th Jul 2026212 AMAQI
17th Jul 2026203 AMAQI
17th Jul 2026144 AMAQI

24°C16/30°C

17th Jul 2026125 AMAQI
17th Jul 2026186 AMAQI
17th Jul 2026257 AMAQI
17th Jul 2026238 AMAQI
17th Jul 2026499 AMAQI
17th Jul 20265010 AMAQI
17th Jul 20265211 AMAQI
17th Jul 20264912 PMAQI
17th Jul 2026491 PMAQI
17th Jul 2026482 PMAQI
17th Jul 2026443 PMAQI
17th Jul 2026464 PMAQI
17th Jul 2026445 PMAQI
17th Jul 2026406 PMAQI
17th Jul 2026467 PMAQI
17th Jul 2026388 PMAQI
17th Jul 2026409 PMAQI
17th Jul 20263810 PMAQI
17th Jul 20263311 PMAQI
18th Jul 20263612 AMAQI
18th Jul 2026331 AMAQI
18th Jul 2026362 AMAQI
18th Jul 2026383 AMAQI
18th Jul 2026364 AMAQI

20°C15/25°C

18th Jul 2026385 AMAQI
18th Jul 2026446 AMAQI
18th Jul 2026467 AMAQI
18th Jul 2026468 AMAQI
18th Jul 2026479 AMAQI
18th Jul 20264210 AMAQI
18th Jul 20264011 AMAQI
18th Jul 20264912 PMAQI
18th Jul 2026521 PMAQI
18th Jul 2026542 PMAQI
18th Jul 2026553 PMAQI
18th Jul 2026534 PMAQI
18th Jul 2026485 PMAQI
18th Jul 2026406 PMAQI
18th Jul 2026427 PMAQI
18th Jul 2026258 PMAQI
18th Jul 2026199 PMAQI
18th Jul 20261410 PMAQI
18th Jul 20261811 PMAQI
19th Jul 20262512 AMAQI
19th Jul 2026361 AMAQI
19th Jul 2026402 AMAQI
19th Jul 2026333 AMAQI
19th Jul 2026334 AMAQI

18°C14/22°C

19th Jul 2026255 AMAQI
19th Jul 2026256 AMAQI
19th Jul 2026257 AMAQI
19th Jul 2026258 AMAQI
19th Jul 2026219 AMAQI
19th Jul 20261910 AMAQI
19th Jul 20263411 AMAQI
19th Jul 20262512 PMAQI
19th Jul 2026211 PMAQI
19th Jul 2026252 PMAQI
19th Jul 2026233 PMAQI
19th Jul 2026214 PMAQI
19th Jul 2026235 PMAQI
19th Jul 2026276 PMAQI
19th Jul 2026277 PMAQI
19th Jul 2026278 PMAQI
19th Jul 2026279 PMAQI
19th Jul 20262910 PMAQI
19th Jul 20262911 PMAQI
20th Jul 20262912 AMAQI
20th Jul 2026311 AMAQI
20th Jul 2026332 AMAQI
20th Jul 2026333 AMAQI
20th Jul 2026334 AMAQI

17°C13/20°C

20th Jul 2026325 AMAQI
20th Jul 2026276 AMAQI
20th Jul 2026217 AMAQI
20th Jul 2026258 AMAQI
20th Jul 2026259 AMAQI
20th Jul 20262110 AMAQI
20th Jul 20262511 AMAQI
20th Jul 20262512 PMAQI
20th Jul 2026251 PMAQI
20th Jul 2026252 PMAQI
20th Jul 2026233 PMAQI
20th Jul 2026234 PMAQI
20th Jul 2026255 PMAQI
20th Jul 2026336 PMAQI
20th Jul 2026317 PMAQI
20th Jul 2026258 PMAQI
20th Jul 2026219 PMAQI
20th Jul 20262110 PMAQI
20th Jul 20262311 PMAQI
21st Jul 20262512 AMAQI
21st Jul 2026271 AMAQI
21st Jul 2026292 AMAQI
21st Jul 2026293 AMAQI
21st Jul 2026254 AMAQI

18°C14/22°C

21st Jul 2026256 AMAQI
21st Jul 2026257 AMAQI
21st Jul 2026258 AMAQI
21st Jul 2026299 AMAQI
21st Jul 20262910 AMAQI
21st Jul 20262511 AMAQI
21st Jul 20263612 PMAQI
21st Jul 2026231 PMAQI
21st Jul 2026232 PMAQI
21st Jul 2026253 PMAQI
21st Jul 2026254 PMAQI
21st Jul 2026255 PMAQI
21st Jul 2026256 PMAQI
21st Jul 2026257 PMAQI
21st Jul 2026258 PMAQI
21st Jul 2026239 PMAQI
21st Jul 20261810 PMAQI
21st Jul 20261211 PMAQI
22nd Jul 20261212 AMAQI
22nd Jul 2026121 AMAQI
22nd Jul 2026102 AMAQI
22nd Jul 2026123 AMAQI
22nd Jul 2026124 AMAQI

17°C11/23°C

22nd Jul 202685 AMAQI
22nd Jul 2026106 AMAQI
22nd Jul 2026107 AMAQI
22nd Jul 202688 AMAQI
22nd Jul 2026109 AMAQI
22nd Jul 20261810 AMAQI
22nd Jul 20262511 AMAQI
22nd Jul 20262712 PMAQI
22nd Jul 2026291 PMAQI
22nd Jul 2026272 PMAQI
22nd Jul 2026293 PMAQI
22nd Jul 2026624 PMAQI
22nd Jul 2026195 PMAQI
22nd Jul 2026256 PMAQI
22nd Jul 2026257 PMAQI
22nd Jul 2026278 PMAQI
22nd Jul 2026239 PMAQI
22nd Jul 20262310 PMAQI
22nd Jul 20262511 PMAQI
23rd Jul 20262512 AMAQI
23rd Jul 2026231 AMAQI
23rd Jul 2026212 AMAQI
23rd Jul 2026213 AMAQI
23rd Jul 2026214 AMAQI

17°C13/22°C

23rd Jul 2026215 AMAQI
23rd Jul 2026216 AMAQI
23rd Jul 2026157 AMAQI
23rd Jul 202688 AMAQI
23rd Jul 202689 AMAQI
23rd Jul 20261010 AMAQI
23rd Jul 20261011 AMAQI
23rd Jul 20261012 PMAQI
23rd Jul 2026161 PMAQI
23rd Jul 2026252 PMAQI
23rd Jul 2026383 PMAQI
23rd Jul 2026294 PMAQI
23rd Jul 202685 PMAQI
23rd Jul 2026166 PMAQI
23rd Jul 2026237 PMAQI
23rd Jul 2026148 PMAQI
23rd Jul 202689 PMAQI
23rd Jul 20261510 PMAQI
23rd Jul 20262111 PMAQI
24th Jul 20262712 AMAQI
24th Jul 2026381 AMAQI
24th Jul 2026402 AMAQI
24th Jul 2026383 AMAQI
24th Jul 2026334 AMAQI

18°C14/22°C

24th Jul 2026335 AMAQI
24th Jul 2026346 AMAQI
24th Jul 2026277 AMAQI
24th Jul 2026238 AMAQI
24th Jul 2026279 AMAQI
24th Jul 20262910 AMAQI
24th Jul 20262311 AMAQI
24th Jul 20262512 PMAQI
24th Jul 2026231 PMAQI
24th Jul 2026232 PMAQI
24th Jul 2026213 PMAQI
24th Jul 2026214 PMAQI
24th Jul 2026215 PMAQI
24th Jul 2026366 PMAQI
24th Jul 2026217 PMAQI
24th Jul 2026368 PMAQI
24th Jul 2026339 PMAQI
24th Jul 20263310 PMAQI
24th Jul 20264411 PMAQI
25th Jul 20264412 AMAQI
25th Jul 2026621 AMAQI
25th Jul 2026732 AMAQI
25th Jul 2026703 AMAQI
25th Jul 2026724 AMAQI

20°C13/27°C

25th Jul 2026495 AMAQI
25th Jul 2026556 AMAQI
25th Jul 2026527 AMAQI
25th Jul 2026508 AMAQI
25th Jul 2026469 AMAQI
25th Jul 20264210 AMAQI
25th Jul 20264211 AMAQI
25th Jul 20264912 PMAQI
25th Jul 2026441 PMAQI
25th Jul 2026362 PMAQI
25th Jul 2026403 PMAQI
25th Jul 2026404 PMAQI
25th Jul 2026425 PMAQI
25th Jul 2026336 PMAQI
25th Jul 2026257 PMAQI
25th Jul 2026298 PMAQI
25th Jul 2026339 PMAQI
25th Jul 20263110 PMAQI
25th Jul 20263111 PMAQI
26th Jul 20263612 AMAQI
26th Jul 2026361 AMAQI
26th Jul 2026332 AMAQI
26th Jul 2026363 AMAQI
26th Jul 2026294 AMAQI

23°C16/29°C

26th Jul 2026275 AMAQI
26th Jul 2026216 AMAQI
26th Jul 2026217 AMAQI
26th Jul 2026238 AMAQI
26th Jul 2026219 AMAQI
26th Jul 20262510 AMAQI
26th Jul 20262511 AMAQI
26th Jul 20262512 PMAQI
26th Jul 2026331 PMAQI
26th Jul 2026232 PMAQI
26th Jul 2026253 PMAQI
26th Jul 2026204 PMAQI
26th Jul 2026125 PMAQI
26th Jul 2026126 PMAQI
26th Jul 2026127 PMAQI
26th Jul 2026168 PMAQI
26th Jul 2026239 PMAQI
26th Jul 20262510 PMAQI
26th Jul 20262311 PMAQI
27th Jul 20262112 AMAQI
27th Jul 2026211 AMAQI
27th Jul 2026212 AMAQI
27th Jul 2026253 AMAQI
27th Jul 2026254 AMAQI

19°C15/23°C

27th Jul 2026215 AMAQI
27th Jul 2026256 AMAQI
27th Jul 2026277 AMAQI
27th Jul 2026258 AMAQI
27th Jul 2026279 AMAQI
27th Jul 20262010 AMAQI
27th Jul 20261211 AMAQI
27th Jul 20261612 PMAQI
27th Jul 2026161 PMAQI
27th Jul 2026222 PMAQI
27th Jul 2026333 PMAQI
27th Jul 2026254 PMAQI
27th Jul 2026165 PMAQI
27th Jul 2026126 PMAQI
27th Jul 2026107 PMAQI
27th Jul 2026108 PMAQI
27th Jul 2026109 PMAQI
27th Jul 2026810 PMAQI
27th Jul 2026811 PMAQI
28th Jul 20263312 AMAQI
28th Jul 2026271 AMAQI
28th Jul 2026182 AMAQI
28th Jul 2026103 AMAQI
28th Jul 2026234 AMAQI

19°C13/23°C

28th Jul 2026235 AMAQI
28th Jul 2026296 AMAQI
28th Jul 2026317 AMAQI
28th Jul 2026388 AMAQI
28th Jul 2026259 AMAQI
28th Jul 20262510 AMAQI
28th Jul 20262511 AMAQI
28th Jul 20262312 PMAQI
28th Jul 2026251 PMAQI
28th Jul 2026272 PMAQI
28th Jul 2026253 PMAQI
28th Jul 2026274 PMAQI
28th Jul 2026295 PMAQI
28th Jul 2026276 PMAQI
28th Jul 2026257 PMAQI
28th Jul 2026298 PMAQI
28th Jul 2026299 PMAQI
28th Jul 20262910 PMAQI
28th Jul 20262511 PMAQI
29th Jul 20263812 AMAQI
29th Jul 2026361 AMAQI
29th Jul 2026252 AMAQI
29th Jul 2026253 AMAQI
29th Jul 2026254 AMAQI

23°C15/31°C

29th Jul 2026255 AMAQI
29th Jul 2026236 AMAQI
29th Jul 2026217 AMAQI
29th Jul 2026298 AMAQI
29th Jul 2026389 AMAQI
29th Jul 20264010 AMAQI
29th Jul 20263811 AMAQI
29th Jul 20264812 PMAQI
29th Jul 2026441 PMAQI
29th Jul 2026292 PMAQI
29th Jul 2026363 PMAQI
29th Jul 2026294 PMAQI
29th Jul 2026295 PMAQI
29th Jul 2026276 PMAQI
29th Jul 2026257 PMAQI
29th Jul 2026278 PMAQI
29th Jul 2026449 PMAQI
29th Jul 20262310 PMAQI
29th Jul 20262511 PMAQI
30th Jul 20264212 AMAQI
30th Jul 2026311 AMAQI
30th Jul 2026252 AMAQI
30th Jul 2026213 AMAQI
30th Jul 2026254 AMAQI

28°C20/37°C

30th Jul 2026235 AMAQI
30th Jul 2026216 AMAQI
30th Jul 2026217 AMAQI
30th Jul 2026258 AMAQI
30th Jul 2026319 AMAQI
30th Jul 20263310 AMAQI
30th Jul 20264411 AMAQI
30th Jul 20264212 PMAQI
30th Jul 2026401 PMAQI
30th Jul 2026422 PMAQI
30th Jul 2026463 PMAQI
30th Jul 2026534 PMAQI
30th Jul 2026505 PMAQI
30th Jul 2026426 PMAQI
30th Jul 2026447 PMAQI
30th Jul 2026448 PMAQI
30th Jul 2026429 PMAQI
30th Jul 20264810 PMAQI
30th Jul 20265111 PMAQI
31st Jul 20265212 AMAQI
31st Jul 2026541 AMAQI
31st Jul 2026552 AMAQI
31st Jul 2026543 AMAQI
31st Jul 2026574 AMAQI

23°C18/30°C

31st Jul 2026655 AMAQI
5 AM
31st Jul 2026686 AMAQI
31st Jul 2026737 AMAQI
31st Jul 2026648 AMAQI
31st Jul 2026389 AMAQI
31st Jul 20262310 AMAQI
31st Jul 20263411 AMAQI
31st Jul 20265412 PMAQI
31st Jul 2026701 PMAQI
1 PM
31st Jul 2026672 PMAQI
31st Jul 2026463 PMAQI
31st Jul 2026334 PMAQI
31st Jul 2026275 PMAQI
31st Jul 2026196 PMAQI
31st Jul 2026127 PMAQI
31st Jul 2026118 PMAQI
31st Jul 202689 PMAQI
9 PM
31st Jul 2026810 PMAQI
31st Jul 2026811 PMAQI
1 AM
4 AM

21°C16/28°C

Day time
Avg. Highest Time
12 PM

29AQI

1 hours / Day
30 hours / Month
Avg. Lowest Time
7 PM - 8 PM

23AQI

2 hours / Day
60 hours / Month
In the last 30 days, during the daytime, the highest AQI was between 12 PM to 12 PM (Avg. 29), while the lowest AQI was between 7 PM to 8 PM (Avg. 23).
Night time
Avg. Highest Time
1 AM

28AQI

1 hours / Day
30 hours / Month
Avg. Lowest Time
10 PM

23AQI

1 hours / Day
30 hours / Month
In the last 30 days, during the daytime, the highest AQI was between 1 AM to 1 AM (Avg. 28), while the lowest AQI was between 10 PM to 10 PM (Avg. 23).

2026 Days Vs Air Quality

Sint Niklaas, Flanders, Belgium

2026

88%

184

11%

22

0.9%

2

Total number of days with different AQI categories in last 212 days in 2026 (153 days remaining)

Good
184 Days
Moderate
22 Days
Poor
2 Days
Unhealthy
0 Days
Severe
0 Days
Hazardous
0 Days

Under WHO’s Safe Air Quality Limits: 88%

Health Risk Level:

Low

In 2026, 88% of 212 days were within WHO’s safe air quality limits. The risk of health issues is Low, but the long-term effects, especially on vulnerable individuals, remain uncertain.

Annual Air Quality Insights

Sint Niklaas, Flanders, Belgium

AQI levels in 2026

AQI (US)
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 2026
-1th undefined 2026
-1th undefined 2026
-1th undefined 2026
1st January 2026
29AQI (US)
2nd January 2026
20AQI (US)
3rd January 2026
21AQI (US)
4th January 2026
22AQI (US)
5th January 2026
45AQI (US)
6th January 2026
32AQI (US)
7th January 2026
41AQI (US)
8th January 2026
41AQI (US)
9th January 2026
19AQI (US)
10th January 2026
52AQI (US)
11th January 2026
60AQI (US)
12th January 2026
22AQI (US)
13th January 2026
20AQI (US)
14th January 2026
30AQI (US)
15th January 2026
30AQI (US)
16th January 2026
16AQI (US)
17th January 2026
30AQI (US)
18th January 2026
53AQI (US)
19th January 2026
66AQI (US)
20th January 2026
63AQI (US)
21st January 2026
30AQI (US)
22nd January 2026
45AQI (US)
23rd January 2026
47AQI (US)
24th January 2026
47AQI (US)
25th January 2026
84AQI (US)
26th January 2026
125AQI (US)
27th January 2026
63AQI (US)
28th January 2026
48AQI (US)
29th January 2026
71AQI (US)
30th January 2026
44AQI (US)
31st January 2026
18AQI (US)
1st February 2026
39AQI (US)
2nd February 2026
48AQI (US)
3rd February 2026
63AQI (US)
4th February 2026
15AQI (US)
5th February 2026
55AQI (US)
6th February 2026
40AQI (US)
7th February 2026
18AQI (US)
8th February 2026
39AQI (US)
9th February 2026
47AQI (US)
10th February 2026
35AQI (US)
11th February 2026
21AQI (US)
12th February 2026
22AQI (US)
13th February 2026
44AQI (US)
14th February 2026
44AQI (US)
15th February 2026
40AQI (US)
16th February 2026
20AQI (US)
17th February 2026
39AQI (US)
18th February 2026
39AQI (US)
19th February 2026
36AQI (US)
20th February 2026
40AQI (US)
21st February 2026
33AQI (US)
22nd February 2026
31AQI (US)
23rd February 2026
33AQI (US)
24th February 2026
36AQI (US)
25th February 2026
34AQI (US)
26th February 2026
33AQI (US)
27th February 2026
32AQI (US)
28th February 2026
19AQI (US)
1st March 2026
27AQI (US)
2nd March 2026
36AQI (US)
3rd March 2026
54AQI (US)
4th March 2026
72AQI (US)
5th March 2026
53AQI (US)
6th March 2026
55AQI (US)
7th March 2026
93AQI (US)
8th March 2026
109AQI (US)
9th March 2026
64AQI (US)
10th March 2026
53AQI (US)
11th March 2026
25AQI (US)
12th March 2026
34AQI (US)
13th March 2026
29AQI (US)
14th March 2026
28AQI (US)
15th March 2026
29AQI (US)
16th March 2026
29AQI (US)
17th March 2026
30AQI (US)
18th March 2026
30AQI (US)
19th March 2026
52AQI (US)
20th March 2026
67AQI (US)
21st March 2026
32AQI (US)
22nd March 2026
61AQI (US)
23rd March 2026
71AQI (US)
24th March 2026
82AQI (US)
25th March 2026
21AQI (US)
26th March 2026
9AQI (US)
27th March 2026
24AQI (US)
28th March 2026
29AQI (US)
29th March 2026
26AQI (US)
30th March 2026
25AQI (US)
31st March 2026
24AQI (US)
1st April 2026
29AQI (US)
2nd April 2026
28AQI (US)
3rd April 2026
20AQI (US)
4th April 2026
27AQI (US)
5th April 2026
28AQI (US)
6th April 2026
25AQI (US)
7th April 2026
25AQI (US)
8th April 2026
27AQI (US)
9th April 2026
33AQI (US)
10th April 2026
22AQI (US)
11th April 2026
28AQI (US)
12th April 2026
29AQI (US)
13th April 2026
29AQI (US)
14th April 2026
31AQI (US)
15th April 2026
31AQI (US)
16th April 2026
26AQI (US)
17th April 2026
18th April 2026
30AQI (US)
19th April 2026
27AQI (US)
20th April 2026
25AQI (US)
21st April 2026
27AQI (US)
22nd April 2026
23rd April 2026
25AQI (US)
24th April 2026
30AQI (US)
25th April 2026
42AQI (US)
26th April 2026
24AQI (US)
27th April 2026
26AQI (US)
28th April 2026
27AQI (US)
29th April 2026
25AQI (US)
30th April 2026
25AQI (US)
1st May 2026
25AQI (US)
2nd May 2026
31AQI (US)
3rd May 2026
19AQI (US)
4th May 2026
49AQI (US)
5th May 2026
36AQI (US)
6th May 2026
21AQI (US)
7th May 2026
24AQI (US)
8th May 2026
27AQI (US)
9th May 2026
10th May 2026
29AQI (US)
11th May 2026
22AQI (US)
12th May 2026
23AQI (US)
13th May 2026
24AQI (US)
14th May 2026
18AQI (US)
15th May 2026
28AQI (US)
16th May 2026
34AQI (US)
17th May 2026
36AQI (US)
18th May 2026
34AQI (US)
19th May 2026
31AQI (US)
20th May 2026
31AQI (US)
21st May 2026
30AQI (US)
22nd May 2026
34AQI (US)
23rd May 2026
36AQI (US)
24th May 2026
49AQI (US)
25th May 2026
37AQI (US)
26th May 2026
26AQI (US)
27th May 2026
28AQI (US)
28th May 2026
27AQI (US)
29th May 2026
39AQI (US)
30th May 2026
48AQI (US)
31st May 2026
34AQI (US)
1st June 2026
20AQI (US)
2nd June 2026
21AQI (US)
3rd June 2026
22AQI (US)
4th June 2026
18AQI (US)
5th June 2026
21AQI (US)
6th June 2026
22AQI (US)
7th June 2026
22AQI (US)
8th June 2026
22AQI (US)
9th June 2026
20AQI (US)
10th June 2026
23AQI (US)
11th June 2026
21AQI (US)
12th June 2026
19AQI (US)
13th June 2026
22AQI (US)
14th June 2026
19AQI (US)
15th June 2026
20AQI (US)
16th June 2026
25AQI (US)
17th June 2026
18AQI (US)
18th June 2026
14AQI (US)
19th June 2026
20AQI (US)
20th June 2026
22AQI (US)
21st June 2026
19AQI (US)
22nd June 2026
21AQI (US)
23rd June 2026
24AQI (US)
24th June 2026
24AQI (US)
25th June 2026
42AQI (US)
26th June 2026
45AQI (US)
27th June 2026
29AQI (US)
28th June 2026
24AQI (US)
29th June 2026
19AQI (US)
30th June 2026
19AQI (US)
1st July 2026
21AQI (US)
2nd July 2026
20AQI (US)
3rd July 2026
22AQI (US)
4th July 2026
16AQI (US)
5th July 2026
13AQI (US)
6th July 2026
17AQI (US)
7th July 2026
15AQI (US)
8th July 2026
20AQI (US)
9th July 2026
24AQI (US)
10th July 2026
28AQI (US)
11th July 2026
28AQI (US)
12th July 2026
26AQI (US)
13th July 2026
28AQI (US)
14th July 2026
28AQI (US)
15th July 2026
23AQI (US)
16th July 2026
22AQI (US)
17th July 2026
35AQI (US)
18th July 2026
40AQI (US)
19th July 2026
27AQI (US)
20th July 2026
26AQI (US)
21st July 2026
25AQI (US)
22nd July 2026
20AQI (US)
23rd July 2026
18AQI (US)
24th July 2026
30AQI (US)
25th July 2026
45AQI (US)
26th July 2026
24AQI (US)
27th July 2026
19AQI (US)
28th July 2026
26AQI (US)
29th July 2026
31AQI (US)
30th July 2026
37AQI (US)
31st July 2026
1st August 2026
2nd August 2026
3rd August 2026
4th August 2026
5th August 2026
6th August 2026
7th August 2026
8th August 2026
9th August 2026
10th August 2026
11th August 2026
12th August 2026
13th August 2026
14th August 2026
15th August 2026
16th August 2026
17th August 2026
18th August 2026
19th August 2026
20th August 2026
21st August 2026
22nd August 2026
23rd August 2026
24th August 2026
25th August 2026
26th August 2026
27th August 2026
28th August 2026
29th August 2026
30th August 2026
31st August 2026
1st September 2026
2nd September 2026
3rd September 2026
4th September 2026
5th September 2026
6th September 2026
7th September 2026
8th September 2026
9th September 2026
10th September 2026
11th September 2026
12th September 2026
13th September 2026
14th September 2026
15th September 2026
16th September 2026
17th September 2026
18th September 2026
19th September 2026
20th September 2026
21st September 2026
22nd September 2026
23rd September 2026
24th September 2026
25th September 2026
26th September 2026
27th September 2026
28th September 2026
29th September 2026
30th September 2026
1st October 2026
2nd October 2026
3rd October 2026
4th October 2026
5th October 2026
6th October 2026
7th October 2026
8th October 2026
9th October 2026
10th October 2026
11th October 2026
12th October 2026
13th October 2026
14th October 2026
15th October 2026
16th October 2026
17th October 2026
18th October 2026
19th October 2026
20th October 2026
21st October 2026
22nd October 2026
23rd October 2026
24th October 2026
25th October 2026
26th October 2026
27th October 2026
28th October 2026
29th October 2026
30th October 2026
31st October 2026
1st November 2026
2nd November 2026
3rd November 2026
4th November 2026
5th November 2026
6th November 2026
7th November 2026
8th November 2026
9th November 2026
10th November 2026
11th November 2026
12th November 2026
13th November 2026
14th November 2026
15th November 2026
16th November 2026
17th November 2026
18th November 2026
19th November 2026
20th November 2026
21st November 2026
22nd November 2026
23rd November 2026
24th November 2026
25th November 2026
26th November 2026
27th November 2026
28th November 2026
29th November 2026
30th November 2026
1st December 2026
2nd December 2026
3rd December 2026
4th December 2026
5th December 2026
6th December 2026
7th December 2026
8th December 2026
9th December 2026
10th December 2026
11th December 2026
12th December 2026
13th December 2026
14th December 2026
15th December 2026
16th December 2026
17th December 2026
18th December 2026
19th December 2026
20th December 2026
21st December 2026
22nd December 2026
23rd December 2026
24th December 2026
25th December 2026
26th December 2026
27th December 2026
28th December 2026
29th December 2026
30th December 2026
31st December 2026

43AQI (US)

36AQI (US)

44AQI (US)

28AQI (US)

31AQI (US)

23AQI (US)

25AQI (US)

No. of days

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

202633AQI (US)

22
8
1
26
2
18
12
1
28
30
30
30
184
22
2

Highest AQI (US) recorded in

March

44AQI (US)

Lowest AQI (US) recorded in

June

23AQI (US)

202541AQI (US)

15
15
1
7
17
4
14
13
4
19
11
30
1
28
2
31
29
2
30
19
12
26
4
19
12
267
89
9

Highest AQI (US) recorded in

February

70AQI (US)

Lowest AQI (US) recorded in

September

22AQI (US)

202438AQI (US)

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 (US) recorded in

January

46AQI (US)

Lowest AQI (US) recorded in

April

23AQI (US)

202337AQI (US)

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 (US) recorded in

May

47AQI (US)

Lowest AQI (US) recorded in

August

26AQI (US)

202244AQI (US)

15
12
3
19
2
7
20
4
18
12
19
12
28
2
23
1
1
27
1
23
6
4
184
68
7

Highest AQI (US) recorded in

March

73AQI (US)

Lowest AQI (US) recorded in

November

25AQI (US)

202150AQI (US)

14
15
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
155
6
1

Highest AQI (US) recorded in

March

65AQI (US)

Lowest AQI (US) recorded in

August

37AQI (US)

202044AQI (US)

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 (US) recorded in

November

60AQI (US)

Lowest AQI (US) recorded in

July

28AQI (US)

Most & Least Polluted Years Over the Last 7 Years

Most Polluted Year Recorded
2021(Avg.)
50AQI (US)
Least Polluted Year Recorded
2026(Avg.)
33AQI (US)

Sint Niklaas's annual 2026 AQI (US) (33) shows an average percentage change of -21.2% (improved AQI (US)) compared to previous years: 2020 (44), 2021 (50), 2022 (44), 2023 (37), 2024 (38), 2025 (41).