Country Background
HistoryAQIPM2.5PM10COSO2NO2O3

Hoorn, Noord Holland, Netherlands 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

Hoorn, Noord Holland, Netherlands

2025
AQI
.
Days

AQI Trends: Highest and Lowest

Highest AQI recorded on
14th Aug 2025
57AQI
Lowest AQI recorded on
2nd Aug 2025
19AQI

Same Day Analysis (20th August ):
On this day, AQI across the 1 years varied significantly: 2025 ranks 1st highest AQI at 26 of Good air quality on the same day.

Download 2024 Annual Data

World Air Quality Report

Globe

Day & Night AQI Trend: 21st Aug - 22nd Aug 2025

Hoorn, Noord Holland, Netherlands

AQI
Day
Night
.

6 AM21st Aug 2025

9 PM

5 AM22nd Aug 2025

Day time
Avg. Highest Time
11AM21st Aug

22AQI

Avg. Lowest Time
8AM21st Aug

13AQI

Night time
Avg. Highest Time
2AM22nd Aug

20AQI

Avg. Lowest Time
9PM21st Aug

17AQI

In the last 24 hours,

Hoorn's AQI reached its highest point of 22 at 11 AM during the Day, while the lowest point, undefined, was recorded at 5 AM during the Night between 21st Aug and 22nd Aug 2025.

Day & Night AQI Trend : Jul - Aug 2025

Hoorn, Noord Holland, Netherlands

JulAug
23rd - 24th24th - 25th25th - 26th26th - 27th27th - 28th28th - 29th29th - 30th30th - 31st31st - 01st01st - 02nd02nd - 03rd03rd - 04th04th - 05th05th - 06th06th - 07th07th - 08th08th - 09th09th - 10th10th - 11th11th - 12th12th - 13th13th - 14th14th - 15th15th - 16th16th - 17th17th - 18th18th - 19th19th - 20th20th - 21st21st - 22nd22nd
Day
Night
23rd Jul 2025256 AMAQI
23rd Jul 2025237 AMAQI
23rd Jul 2025248 AMAQI
23rd Jul 2025229 AMAQI
23rd Jul 20252410 AMAQI
23rd Jul 20252411 AMAQI
23rd Jul 20252312 PMAQI
23rd Jul 2025241 PMAQI
23rd Jul 2025232 PMAQI
23rd Jul 2025243 PMAQI
23rd Jul 2025244 PMAQI
23rd Jul 2025215 PMAQI
23rd Jul 2025206 PMAQI
23rd Jul 2025187 PMAQI
23rd Jul 2025198 PMAQI
23rd Jul 2025209 PMAQI
23rd Jul 20252010 PMAQI
23rd Jul 20252211 PMAQI
24th Jul 20252212 AMAQI
24th Jul 2025211 AMAQI
24th Jul 2025262 AMAQI
24th Jul 2025293 AMAQI
24th Jul 2025294 AMAQI
24th Jul 2025295 AMAQI

19°C16/22°C

24th Jul 2025286 AMAQI
24th Jul 2025237 AMAQI
24th Jul 2025248 AMAQI
24th Jul 2025249 AMAQI
24th Jul 20252610 AMAQI
24th Jul 20252211 AMAQI
24th Jul 20252412 PMAQI
24th Jul 2025201 PMAQI
24th Jul 2025232 PMAQI
24th Jul 2025263 PMAQI
24th Jul 2025264 PMAQI
24th Jul 2025245 PMAQI
24th Jul 2025256 PMAQI
24th Jul 2025237 PMAQI
24th Jul 2025228 PMAQI
24th Jul 2025249 PMAQI
24th Jul 20252710 PMAQI
24th Jul 20252911 PMAQI
25th Jul 20252812 AMAQI
25th Jul 2025251 AMAQI
25th Jul 2025282 AMAQI
25th Jul 2025333 AMAQI
25th Jul 2025334 AMAQI
25th Jul 2025375 AMAQI

19°C16/23°C

25th Jul 2025266 AMAQI
25th Jul 2025267 AMAQI
25th Jul 2025228 AMAQI
25th Jul 2025229 AMAQI
25th Jul 20252110 AMAQI
25th Jul 20251911 AMAQI
25th Jul 20251812 PMAQI
25th Jul 2025181 PMAQI
25th Jul 2025222 PMAQI
25th Jul 2025273 PMAQI
25th Jul 2025264 PMAQI
25th Jul 2025245 PMAQI
25th Jul 2025226 PMAQI
25th Jul 2025237 PMAQI
25th Jul 2025248 PMAQI
25th Jul 2025239 PMAQI
25th Jul 20252610 PMAQI
25th Jul 20252511 PMAQI
26th Jul 20252412 AMAQI
26th Jul 2025251 AMAQI
26th Jul 2025242 AMAQI
26th Jul 2025263 AMAQI
26th Jul 2025254 AMAQI
26th Jul 2025245 AMAQI

19°C16/21°C

26th Jul 2025286 AMAQI
26th Jul 2025327 AMAQI
26th Jul 2025418 AMAQI
26th Jul 2025459 AMAQI
26th Jul 20254710 AMAQI
26th Jul 20254911 AMAQI
26th Jul 20254412 PMAQI
26th Jul 2025451 PMAQI
26th Jul 2025382 PMAQI
26th Jul 2025403 PMAQI
26th Jul 2025404 PMAQI
26th Jul 2025395 PMAQI
26th Jul 2025406 PMAQI
26th Jul 2025447 PMAQI
26th Jul 2025478 PMAQI
26th Jul 2025429 PMAQI
26th Jul 20254210 PMAQI
26th Jul 20253911 PMAQI
27th Jul 20253412 AMAQI
27th Jul 2025291 AMAQI
27th Jul 2025302 AMAQI
27th Jul 2025213 AMAQI
27th Jul 2025184 AMAQI
27th Jul 2025195 AMAQI

20°C15/25°C

27th Jul 2025266 AMAQI
27th Jul 2025167 AMAQI
27th Jul 2025188 AMAQI
27th Jul 2025189 AMAQI
27th Jul 20252010 AMAQI
27th Jul 20252011 AMAQI
27th Jul 20253312 PMAQI
27th Jul 2025181 PMAQI
27th Jul 2025202 PMAQI
27th Jul 2025203 PMAQI
27th Jul 2025204 PMAQI
27th Jul 2025205 PMAQI
27th Jul 2025206 PMAQI
27th Jul 2025217 PMAQI
27th Jul 2025238 PMAQI
27th Jul 2025229 PMAQI
27th Jul 20252310 PMAQI
27th Jul 20252211 PMAQI
28th Jul 20252312 AMAQI
28th Jul 2025221 AMAQI
28th Jul 2025262 AMAQI
28th Jul 2025273 AMAQI
28th Jul 2025304 AMAQI
28th Jul 2025265 AMAQI

18°C15/21°C

28th Jul 2025256 AMAQI
28th Jul 2025247 AMAQI
28th Jul 2025248 AMAQI
28th Jul 2025249 AMAQI
28th Jul 20252610 AMAQI
28th Jul 20252411 AMAQI
28th Jul 20252012 PMAQI
28th Jul 2025261 PMAQI
28th Jul 2025222 PMAQI
28th Jul 2025223 PMAQI
28th Jul 2025224 PMAQI
28th Jul 2025225 PMAQI
28th Jul 2025216 PMAQI
28th Jul 2025207 PMAQI
28th Jul 2025228 PMAQI
28th Jul 2025229 PMAQI
28th Jul 20252310 PMAQI
28th Jul 20252311 PMAQI
29th Jul 20252412 AMAQI
29th Jul 2025261 AMAQI
29th Jul 2025212 AMAQI
29th Jul 2025173 AMAQI
29th Jul 2025164 AMAQI
29th Jul 2025145 AMAQI

17°C15/20°C

29th Jul 2025166 AMAQI
29th Jul 2025147 AMAQI
29th Jul 2025158 AMAQI
29th Jul 2025159 AMAQI
29th Jul 20252310 AMAQI
29th Jul 20251611 AMAQI
29th Jul 20251612 PMAQI
29th Jul 2025171 PMAQI
29th Jul 2025182 PMAQI
29th Jul 2025193 PMAQI
29th Jul 2025194 PMAQI
29th Jul 2025195 PMAQI
29th Jul 2025196 PMAQI
29th Jul 2025217 PMAQI
29th Jul 2025198 PMAQI
29th Jul 2025209 PMAQI
29th Jul 20252010 PMAQI
29th Jul 20252011 PMAQI
30th Jul 20252012 AMAQI
30th Jul 2025201 AMAQI
30th Jul 2025162 AMAQI
30th Jul 2025173 AMAQI
30th Jul 2025184 AMAQI
30th Jul 2025155 AMAQI

17°C14/21°C

30th Jul 2025166 AMAQI
30th Jul 2025187 AMAQI
30th Jul 2025168 AMAQI
30th Jul 2025169 AMAQI
30th Jul 20251610 AMAQI
30th Jul 20251711 AMAQI
30th Jul 20251812 PMAQI
30th Jul 2025181 PMAQI
30th Jul 2025192 PMAQI
30th Jul 2025193 PMAQI
30th Jul 2025184 PMAQI
30th Jul 2025195 PMAQI
30th Jul 2025196 PMAQI
30th Jul 2025197 PMAQI
30th Jul 2025198 PMAQI
30th Jul 2025189 PMAQI
30th Jul 20251810 PMAQI
30th Jul 20251811 PMAQI
31st Jul 20251812 AMAQI
31st Jul 2025181 AMAQI
31st Jul 2025182 AMAQI
31st Jul 2025183 AMAQI
31st Jul 2025214 AMAQI
31st Jul 2025225 AMAQI

17°C14/20°C

31st Jul 2025216 AMAQI
31st Jul 2025207 AMAQI
31st Jul 2025208 AMAQI
31st Jul 2025209 AMAQI
31st Jul 20251910 AMAQI
31st Jul 20251811 AMAQI
31st Jul 20251612 PMAQI
31st Jul 2025191 PMAQI
31st Jul 2025182 PMAQI
31st Jul 2025193 PMAQI
31st Jul 2025194 PMAQI
31st Jul 2025175 PMAQI
31st Jul 2025186 PMAQI
31st Jul 2025187 PMAQI
31st Jul 2025188 PMAQI
31st Jul 2025259 PMAQI
31st Jul 20252210 PMAQI
31st Jul 20252011 PMAQI
1st Aug 20252112 AMAQI
1st Aug 2025231 AMAQI
1st Aug 2025202 AMAQI
1st Aug 2025203 AMAQI
1st Aug 2025204 AMAQI
1st Aug 2025215 AMAQI

18°C15/21°C

1st Aug 2025196 AMAQI
1st Aug 2025197 AMAQI
1st Aug 2025238 AMAQI
1st Aug 2025229 AMAQI
1st Aug 20251810 AMAQI
1st Aug 20251811 AMAQI
1st Aug 20251612 PMAQI
1st Aug 2025161 PMAQI
1st Aug 2025172 PMAQI
1st Aug 2025193 PMAQI
1st Aug 2025184 PMAQI
1st Aug 2025205 PMAQI
1st Aug 2025196 PMAQI
1st Aug 2025187 PMAQI
1st Aug 2025198 PMAQI
1st Aug 2025209 PMAQI
1st Aug 20252210 PMAQI
1st Aug 20252211 PMAQI
2nd Aug 20252112 AMAQI
2nd Aug 2025221 AMAQI
2nd Aug 2025192 AMAQI
2nd Aug 2025183 AMAQI
2nd Aug 2025184 AMAQI
2nd Aug 2025185 AMAQI

17°C15/19°C

2nd Aug 2025186 AMAQI
2nd Aug 2025207 AMAQI
2nd Aug 2025188 AMAQI
2nd Aug 2025169 AMAQI
2nd Aug 20252010 AMAQI
2nd Aug 20251711 AMAQI
2nd Aug 20251612 PMAQI
2nd Aug 2025181 PMAQI
2nd Aug 2025182 PMAQI
2nd Aug 2025183 PMAQI
2nd Aug 2025204 PMAQI
2nd Aug 2025195 PMAQI
2nd Aug 2025196 PMAQI
2nd Aug 2025197 PMAQI
2nd Aug 2025208 PMAQI
2nd Aug 2025209 PMAQI
2nd Aug 20252110 PMAQI
2nd Aug 20252011 PMAQI
3rd Aug 20252112 AMAQI
3rd Aug 2025191 AMAQI
3rd Aug 2025202 AMAQI
3rd Aug 2025223 AMAQI
3rd Aug 2025174 AMAQI
3rd Aug 2025215 AMAQI

17°C15/19°C

3rd Aug 2025206 AMAQI
3rd Aug 2025197 AMAQI
3rd Aug 2025188 AMAQI
3rd Aug 2025229 AMAQI
3rd Aug 20252410 AMAQI
3rd Aug 20252111 AMAQI
3rd Aug 20252312 PMAQI
3rd Aug 2025221 PMAQI
3rd Aug 2025212 PMAQI
3rd Aug 2025193 PMAQI
3rd Aug 2025214 PMAQI
3rd Aug 2025225 PMAQI
3rd Aug 2025256 PMAQI
3rd Aug 2025207 PMAQI
3rd Aug 2025228 PMAQI
3rd Aug 2025229 PMAQI
3rd Aug 20252210 PMAQI
3rd Aug 20252211 PMAQI
4th Aug 20252212 AMAQI
4th Aug 2025221 AMAQI
4th Aug 2025202 AMAQI
4th Aug 2025203 AMAQI
4th Aug 2025174 AMAQI
4th Aug 2025185 AMAQI

18°C15/20°C

4th Aug 2025206 AMAQI
4th Aug 2025227 AMAQI
4th Aug 2025228 AMAQI
4th Aug 2025259 AMAQI
4th Aug 20252010 AMAQI
4th Aug 20252211 AMAQI
4th Aug 20252012 PMAQI
4th Aug 2025221 PMAQI
4th Aug 2025212 PMAQI
4th Aug 2025213 PMAQI
4th Aug 2025234 PMAQI
4th Aug 2025225 PMAQI
4th Aug 2025216 PMAQI
4th Aug 2025227 PMAQI
4th Aug 2025228 PMAQI
4th Aug 2025229 PMAQI
4th Aug 20252210 PMAQI
4th Aug 20252311 PMAQI
5th Aug 20252312 AMAQI
5th Aug 2025221 AMAQI
5th Aug 2025202 AMAQI
5th Aug 2025173 AMAQI
5th Aug 2025184 AMAQI
5th Aug 2025185 AMAQI

18°C16/22°C

5th Aug 2025196 AMAQI
5th Aug 2025227 AMAQI
5th Aug 2025218 AMAQI
5th Aug 2025259 AMAQI
5th Aug 20253110 AMAQI
5th Aug 20253611 AMAQI
5th Aug 20253012 PMAQI
5th Aug 2025301 PMAQI
5th Aug 2025232 PMAQI
5th Aug 2025223 PMAQI
5th Aug 2025224 PMAQI
5th Aug 2025225 PMAQI
5th Aug 2025226 PMAQI
5th Aug 2025227 PMAQI
5th Aug 2025238 PMAQI
5th Aug 2025239 PMAQI
5th Aug 20252310 PMAQI
5th Aug 20252411 PMAQI
6th Aug 20252312 AMAQI
6th Aug 2025251 AMAQI
6th Aug 2025212 AMAQI
6th Aug 2025243 AMAQI
6th Aug 2025264 AMAQI
6th Aug 2025245 AMAQI

17°C14/18°C

6th Aug 2025246 AMAQI
6th Aug 2025257 AMAQI
6th Aug 2025278 AMAQI
6th Aug 2025329 AMAQI
6th Aug 20253210 AMAQI
6th Aug 20253411 AMAQI
6th Aug 20253212 PMAQI
6th Aug 2025281 PMAQI
6th Aug 2025332 PMAQI
6th Aug 2025313 PMAQI
6th Aug 2025284 PMAQI
6th Aug 2025315 PMAQI
6th Aug 2025276 PMAQI
6th Aug 2025287 PMAQI
6th Aug 2025278 PMAQI
6th Aug 2025269 PMAQI
6th Aug 20252410 PMAQI
6th Aug 20252411 PMAQI
7th Aug 20252512 AMAQI
7th Aug 2025251 AMAQI
7th Aug 2025262 AMAQI
7th Aug 2025283 AMAQI
7th Aug 2025284 AMAQI
7th Aug 2025285 AMAQI

17°C14/20°C

7th Aug 2025326 AMAQI
7th Aug 2025347 AMAQI
7th Aug 2025318 AMAQI
7th Aug 2025329 AMAQI
7th Aug 20253610 AMAQI
7th Aug 20253911 AMAQI
7th Aug 20253412 PMAQI
7th Aug 2025291 PMAQI
7th Aug 2025302 PMAQI
7th Aug 2025283 PMAQI
7th Aug 2025274 PMAQI
7th Aug 2025285 PMAQI
7th Aug 2025276 PMAQI
7th Aug 2025267 PMAQI
7th Aug 2025288 PMAQI
7th Aug 2025279 PMAQI
7th Aug 20252810 PMAQI
7th Aug 20252911 PMAQI
8th Aug 20252812 AMAQI
8th Aug 2025281 AMAQI
8th Aug 2025282 AMAQI
8th Aug 2025263 AMAQI
8th Aug 2025304 AMAQI
8th Aug 2025325 AMAQI

18°C13/22°C

8th Aug 2025366 AMAQI
8th Aug 2025357 AMAQI
8th Aug 2025368 AMAQI
8th Aug 2025359 AMAQI
8th Aug 20253210 AMAQI
8th Aug 20253111 AMAQI
8th Aug 20253212 PMAQI
8th Aug 2025331 PMAQI
8th Aug 2025342 PMAQI
8th Aug 2025333 PMAQI
8th Aug 2025344 PMAQI
8th Aug 2025345 PMAQI
8th Aug 2025306 PMAQI
8th Aug 2025297 PMAQI
8th Aug 2025318 PMAQI
8th Aug 2025349 PMAQI
8th Aug 20253310 PMAQI
8th Aug 20253411 PMAQI
9th Aug 20253412 AMAQI
9th Aug 2025321 AMAQI
9th Aug 2025422 AMAQI
9th Aug 2025513 AMAQI
9th Aug 2025464 AMAQI
9th Aug 2025525 AMAQI

19°C16/22°C

9th Aug 2025546 AMAQI
9th Aug 2025547 AMAQI
9th Aug 2025568 AMAQI
9th Aug 2025649 AMAQI
9th Aug 20256010 AMAQI
9th Aug 20255611 AMAQI
9th Aug 20255712 PMAQI
9th Aug 2025561 PMAQI
9th Aug 2025522 PMAQI
9th Aug 2025503 PMAQI
9th Aug 2025454 PMAQI
9th Aug 2025345 PMAQI
9th Aug 2025336 PMAQI
9th Aug 2025337 PMAQI
9th Aug 2025308 PMAQI
9th Aug 2025369 PMAQI
9th Aug 20254210 PMAQI
9th Aug 20254011 PMAQI
10th Aug 20254212 AMAQI
10th Aug 2025471 AMAQI
10th Aug 2025372 AMAQI
10th Aug 2025273 AMAQI
10th Aug 2025264 AMAQI
10th Aug 2025285 AMAQI

18°C14/23°C

10th Aug 2025286 AMAQI
10th Aug 2025277 AMAQI
10th Aug 2025268 AMAQI
10th Aug 2025249 AMAQI
10th Aug 20252410 AMAQI
10th Aug 20252711 AMAQI
10th Aug 20252612 PMAQI
10th Aug 2025261 PMAQI
10th Aug 2025292 PMAQI
10th Aug 2025283 PMAQI
10th Aug 2025294 PMAQI
10th Aug 2025305 PMAQI
10th Aug 2025296 PMAQI
10th Aug 2025287 PMAQI
10th Aug 2025308 PMAQI
10th Aug 2025299 PMAQI
10th Aug 20252810 PMAQI
10th Aug 20252911 PMAQI
11th Aug 20253012 AMAQI
11th Aug 2025311 AMAQI
11th Aug 2025222 AMAQI
11th Aug 2025203 AMAQI
11th Aug 2025184 AMAQI
11th Aug 2025175 AMAQI

18°C15/21°C

11th Aug 2025186 AMAQI
11th Aug 2025197 AMAQI
11th Aug 2025308 AMAQI
11th Aug 2025349 AMAQI
11th Aug 20253610 AMAQI
11th Aug 20253311 AMAQI
11th Aug 20254012 PMAQI
11th Aug 2025331 PMAQI
11th Aug 2025332 PMAQI
11th Aug 2025343 PMAQI
11th Aug 2025324 PMAQI
11th Aug 2025305 PMAQI
11th Aug 2025326 PMAQI
11th Aug 2025327 PMAQI
11th Aug 2025348 PMAQI
11th Aug 2025299 PMAQI
11th Aug 20253010 PMAQI
11th Aug 20253011 PMAQI
12th Aug 20253012 AMAQI
12th Aug 2025301 AMAQI
12th Aug 2025382 AMAQI
12th Aug 2025443 AMAQI
12th Aug 2025444 AMAQI
12th Aug 2025505 AMAQI

19°C14/25°C

12th Aug 2025516 AMAQI
12th Aug 2025507 AMAQI
12th Aug 2025508 AMAQI
12th Aug 2025529 AMAQI
12th Aug 20254810 AMAQI
12th Aug 20255111 AMAQI
12th Aug 20254812 PMAQI
12th Aug 2025441 PMAQI
12th Aug 2025422 PMAQI
12th Aug 2025433 PMAQI
12th Aug 2025454 PMAQI
12th Aug 2025485 PMAQI
12th Aug 2025526 PMAQI
12th Aug 2025487 PMAQI
12th Aug 2025488 PMAQI
12th Aug 2025439 PMAQI
12th Aug 20254610 PMAQI
12th Aug 20254511 PMAQI
13th Aug 20254612 AMAQI
13th Aug 2025471 AMAQI
13th Aug 2025492 AMAQI
13th Aug 2025543 AMAQI
13th Aug 2025544 AMAQI
13th Aug 2025525 AMAQI

22°C18/28°C

13th Aug 2025496 AMAQI
13th Aug 2025547 AMAQI
13th Aug 2025538 AMAQI
13th Aug 2025549 AMAQI
13th Aug 20255910 AMAQI
13th Aug 20255611 AMAQI
13th Aug 20255812 PMAQI
13th Aug 2025581 PMAQI
13th Aug 2025562 PMAQI
13th Aug 2025583 PMAQI
13th Aug 2025564 PMAQI
13th Aug 2025545 PMAQI
13th Aug 2025566 PMAQI
13th Aug 2025577 PMAQI
13th Aug 2025548 PMAQI
13th Aug 2025549 PMAQI
13th Aug 20255410 PMAQI
13th Aug 20255411 PMAQI
14th Aug 20255412 AMAQI
14th Aug 2025541 AMAQI
14th Aug 2025562 AMAQI
14th Aug 2025613 AMAQI
14th Aug 2025644 AMAQI
14th Aug 2025645 AMAQI

24°C20/30°C

14th Aug 2025616 AMAQI
14th Aug 2025637 AMAQI
14th Aug 2025608 AMAQI
14th Aug 2025609 AMAQI
14th Aug 20255810 AMAQI
14th Aug 20255811 AMAQI
14th Aug 20255112 PMAQI
14th Aug 2025541 PMAQI
14th Aug 2025542 PMAQI
14th Aug 2025563 PMAQI
14th Aug 2025564 PMAQI
14th Aug 2025575 PMAQI
14th Aug 2025546 PMAQI
14th Aug 2025567 PMAQI
14th Aug 2025548 PMAQI
14th Aug 2025569 PMAQI
14th Aug 20255810 PMAQI
14th Aug 20255811 PMAQI
15th Aug 20255812 AMAQI
15th Aug 2025591 AMAQI
15th Aug 2025502 AMAQI
15th Aug 2025453 AMAQI
15th Aug 2025384 AMAQI
15th Aug 2025495 AMAQI

23°C18/29°C

15th Aug 2025396 AMAQI
15th Aug 2025417 AMAQI
15th Aug 2025438 AMAQI
15th Aug 2025379 AMAQI
15th Aug 20254510 AMAQI
15th Aug 20254411 AMAQI
15th Aug 20253812 PMAQI
15th Aug 2025371 PMAQI
15th Aug 2025362 PMAQI
15th Aug 2025353 PMAQI
15th Aug 2025354 PMAQI
15th Aug 2025375 PMAQI
15th Aug 2025346 PMAQI
15th Aug 2025397 PMAQI
15th Aug 2025358 PMAQI
15th Aug 2025449 PMAQI
15th Aug 20254610 PMAQI
15th Aug 20254411 PMAQI
16th Aug 20254412 AMAQI
16th Aug 2025481 AMAQI
16th Aug 2025462 AMAQI
16th Aug 2025383 AMAQI
16th Aug 2025474 AMAQI
16th Aug 2025425 AMAQI

21°C17/25°C

16th Aug 2025356 AMAQI
16th Aug 2025327 AMAQI
16th Aug 2025348 AMAQI
16th Aug 2025369 AMAQI
16th Aug 20253410 AMAQI
16th Aug 20253011 AMAQI
16th Aug 20252912 PMAQI
16th Aug 2025341 PMAQI
16th Aug 2025412 PMAQI
16th Aug 2025403 PMAQI
16th Aug 2025404 PMAQI
16th Aug 2025375 PMAQI
16th Aug 2025366 PMAQI
16th Aug 2025397 PMAQI
16th Aug 2025358 PMAQI
16th Aug 2025419 PMAQI
16th Aug 20254010 PMAQI
16th Aug 20254111 PMAQI
17th Aug 20254012 AMAQI
17th Aug 2025411 AMAQI
17th Aug 2025282 AMAQI
17th Aug 2025243 AMAQI
17th Aug 2025244 AMAQI
17th Aug 2025245 AMAQI

18°C15/20°C

17th Aug 2025246 AMAQI
17th Aug 2025227 AMAQI
17th Aug 2025248 AMAQI
17th Aug 2025209 AMAQI
17th Aug 20252210 AMAQI
17th Aug 20252211 AMAQI
17th Aug 20252512 PMAQI
17th Aug 2025271 PMAQI
17th Aug 2025272 PMAQI
17th Aug 2025253 PMAQI
17th Aug 2025284 PMAQI
17th Aug 2025265 PMAQI
17th Aug 2025266 PMAQI
17th Aug 2025277 PMAQI
17th Aug 2025248 PMAQI
17th Aug 2025269 PMAQI
17th Aug 20252710 PMAQI
17th Aug 20252611 PMAQI
18th Aug 20252712 AMAQI
18th Aug 2025291 AMAQI
18th Aug 2025232 AMAQI
18th Aug 2025243 AMAQI
18th Aug 2025184 AMAQI
18th Aug 2025185 AMAQI

17°C14/19°C

18th Aug 2025186 AMAQI
18th Aug 2025177 AMAQI
18th Aug 2025188 AMAQI
18th Aug 2025169 AMAQI
18th Aug 20252110 AMAQI
18th Aug 20252011 AMAQI
18th Aug 20252112 PMAQI
18th Aug 2025271 PMAQI
18th Aug 2025232 PMAQI
18th Aug 2025213 PMAQI
18th Aug 2025194 PMAQI
18th Aug 2025195 PMAQI
18th Aug 2025206 PMAQI
18th Aug 2025197 PMAQI
18th Aug 2025198 PMAQI
18th Aug 2025229 PMAQI
18th Aug 20252210 PMAQI
18th Aug 20252311 PMAQI
19th Aug 20252312 AMAQI
19th Aug 2025231 AMAQI
19th Aug 2025182 AMAQI
19th Aug 2025183 AMAQI
19th Aug 2025184 AMAQI
19th Aug 2025205 AMAQI

19°C16/23°C

19th Aug 2025166 AMAQI
19th Aug 2025287 AMAQI
19th Aug 2025308 AMAQI
19th Aug 2025289 AMAQI
19th Aug 20252810 AMAQI
19th Aug 20252411 AMAQI
19th Aug 20252312 PMAQI
19th Aug 2025261 PMAQI
19th Aug 2025222 PMAQI
19th Aug 2025213 PMAQI
19th Aug 2025224 PMAQI
19th Aug 2025235 PMAQI
19th Aug 2025206 PMAQI
19th Aug 2025207 PMAQI
19th Aug 2025188 PMAQI
19th Aug 2025229 PMAQI
19th Aug 20252310 PMAQI
19th Aug 20252311 PMAQI
20th Aug 20252212 AMAQI
20th Aug 2025241 AMAQI
20th Aug 2025202 AMAQI
20th Aug 2025203 AMAQI
20th Aug 2025214 AMAQI
20th Aug 2025225 AMAQI

18°C16/22°C

20th Aug 2025276 AMAQI
20th Aug 2025307 AMAQI
20th Aug 2025268 AMAQI
20th Aug 2025329 AMAQI
20th Aug 20253810 AMAQI
20th Aug 20253811 AMAQI
20th Aug 20253812 PMAQI
20th Aug 2025311 PMAQI
20th Aug 2025242 PMAQI
20th Aug 2025243 PMAQI
20th Aug 2025294 PMAQI
20th Aug 2025295 PMAQI
20th Aug 2025266 PMAQI
20th Aug 2025237 PMAQI
20th Aug 2025228 PMAQI
20th Aug 2025259 PMAQI
20th Aug 20252610 PMAQI
20th Aug 20252511 PMAQI
21st Aug 20252512 AMAQI
21st Aug 2025281 AMAQI
21st Aug 2025172 AMAQI
21st Aug 2025183 AMAQI
21st Aug 2025134 AMAQI
21st Aug 2025145 AMAQI

18°C16/22°C

21st Aug 2025136 AMAQI
21st Aug 2025147 AMAQI
21st Aug 2025138 AMAQI
21st Aug 2025169 AMAQI
21st Aug 20252010 AMAQI
21st Aug 20252211 AMAQI
21st Aug 20251912 PMAQI
21st Aug 2025181 PMAQI
21st Aug 2025182 PMAQI
21st Aug 2025173 PMAQI
21st Aug 2025184 PMAQI
21st Aug 2025195 PMAQI
21st Aug 2025186 PMAQI
21st Aug 2025187 PMAQI
21st Aug 2025178 PMAQI
21st Aug 2025179 PMAQI
21st Aug 20251810 PMAQI
21st Aug 20251811 PMAQI
22nd Aug 20251812 AMAQI
22nd Aug 2025181 AMAQI
22nd Aug 2025202 AMAQI

17°C14/19°C

6 AM
1 PM
9 PM
1 AM
5 AM

--°C/°C

Day time
Avg. Highest Time
10 AM

31AQI

1 hours / Day
30 hours / Month
Avg. Lowest Time
6 AM - 7 AM

28AQI

2 hours / Day
60 hours / Month
In the last 30 days, during the daytime, the highest AQI was between 10 AM to 10 AM (Avg. 31), while the lowest AQI was between 6 AM to 7 AM (Avg. 28).
Night time
Avg. Highest Time
12 AM - 1 AM

29AQI

2 hours / Day
60 hours / Month
Avg. Lowest Time
2 AM

27AQI

1 hours / Day
30 hours / Month
In the last 30 days, during the daytime, the highest AQI was between 12 AM to 1 AM (Avg. 29), while the lowest AQI was between 2 AM to 2 AM (Avg. 27).

2025 Days Vs Air Quality

Hoorn, Noord Holland, Netherlands

2025

94%

79

6%

5

Total number of days with different AQI categories in last 234 days in 2025 (131 days remaining)

Good
79 Days
Moderate
5 Days
Poor
0 Days
Unhealthy
0 Days
Severe
0 Days
Hazardous
0 Days

Under WHO’s Safe Air Quality Limits: 94%

Health Risk Level:

Very Low

In 2025, 94% of 234 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

Hoorn, Noord Holland, Netherlands

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
2nd January 2025
3rd January 2025
4th January 2025
5th January 2025
6th January 2025
7th January 2025
8th January 2025
9th January 2025
10th January 2025
11th January 2025
12th January 2025
13th January 2025
14th January 2025
15th January 2025
16th January 2025
17th January 2025
18th January 2025
19th January 2025
20th January 2025
21st January 2025
22nd January 2025
23rd January 2025
24th January 2025
25th January 2025
26th January 2025
27th January 2025
28th January 2025
29th January 2025
30th January 2025
31st January 2025
1st February 2025
2nd February 2025
3rd February 2025
4th February 2025
5th February 2025
6th February 2025
7th February 2025
8th February 2025
9th February 2025
10th February 2025
11th February 2025
12th February 2025
13th February 2025
14th February 2025
15th February 2025
16th February 2025
17th February 2025
18th February 2025
19th February 2025
20th February 2025
21st February 2025
22nd February 2025
23rd February 2025
24th February 2025
25th February 2025
26th February 2025
27th February 2025
28th February 2025
1st March 2025
2nd March 2025
3rd March 2025
4th March 2025
5th March 2025
6th March 2025
7th March 2025
8th March 2025
9th March 2025
10th March 2025
11th March 2025
12th March 2025
13th March 2025
14th March 2025
15th March 2025
16th March 2025
17th March 2025
18th March 2025
19th March 2025
20th March 2025
21st March 2025
22nd March 2025
23rd March 2025
24th March 2025
25th March 2025
26th March 2025
27th March 2025
28th March 2025
29th March 2025
30th March 2025
31st March 2025
1st April 2025
2nd April 2025
3rd April 2025
4th April 2025
5th April 2025
6th April 2025
7th April 2025
8th April 2025
9th April 2025
10th April 2025
11th April 2025
12th April 2025
13th April 2025
14th April 2025
15th April 2025
16th April 2025
17th April 2025
18th April 2025
19th April 2025
20th April 2025
21st April 2025
22nd April 2025
23rd April 2025
24th April 2025
25th April 2025
26th April 2025
27th April 2025
28th April 2025
29th April 2025
30th April 2025
1st May 2025
2nd May 2025
3rd May 2025
4th May 2025
5th May 2025
6th May 2025
7th May 2025
8th May 2025
9th May 2025
10th May 2025
11th May 2025
12th May 2025
13th May 2025
14th May 2025
15th May 2025
16th May 2025
17th May 2025
18th May 2025
19th May 2025
20th May 2025
21st May 2025
22nd May 2025
23rd May 2025
24th May 2025
25th May 2025
26th May 2025
27th May 2025
28th May 2025
29th May 2025
46AQI
30th May 2025
35AQI
31st May 2025
36AQI
1st June 2025
33AQI
2nd June 2025
31AQI
3rd June 2025
31AQI
4th June 2025
23AQI
5th June 2025
23AQI
6th June 2025
20AQI
7th June 2025
22AQI
8th June 2025
23AQI
9th June 2025
43AQI
10th June 2025
57AQI
11th June 2025
39AQI
12th June 2025
42AQI
13th June 2025
54AQI
14th June 2025
53AQI
15th June 2025
39AQI
16th June 2025
35AQI
17th June 2025
36AQI
18th June 2025
39AQI
19th June 2025
31AQI
20th June 2025
24AQI
21st June 2025
29AQI
22nd June 2025
34AQI
23rd June 2025
28AQI
24th June 2025
29AQI
25th June 2025
28AQI
26th June 2025
30AQI
27th June 2025
25AQI
28th June 2025
22AQI
29th June 2025
21AQI
30th June 2025
25AQI
1st July 2025
29AQI
2nd July 2025
49AQI
3rd July 2025
28AQI
4th July 2025
23AQI
5th July 2025
22AQI
6th July 2025
24AQI
7th July 2025
19AQI
8th July 2025
20AQI
9th July 2025
23AQI
10th July 2025
27AQI
11th July 2025
24AQI
12th July 2025
21AQI
13th July 2025
28AQI
14th July 2025
27AQI
15th July 2025
25AQI
16th July 2025
23AQI
17th July 2025
20AQI
18th July 2025
23AQI
19th July 2025
38AQI
20th July 2025
48AQI
21st July 2025
29AQI
22nd July 2025
22AQI
23rd July 2025
22AQI
24th July 2025
24AQI
25th July 2025
26AQI
26th July 2025
35AQI
27th July 2025
25AQI
28th July 2025
24AQI
29th July 2025
19AQI
30th July 2025
18AQI
31st July 2025
19AQI
1st August 2025
20AQI
2nd August 2025
19AQI
3rd August 2025
21AQI
4th August 2025
21AQI
5th August 2025
23AQI
6th August 2025
26AQI
7th August 2025
28AQI
8th August 2025
31AQI
9th August 2025
43AQI
10th August 2025
31AQI
11th August 2025
28AQI
12th August 2025
43AQI
13th August 2025
52AQI
14th August 2025
57AQI
15th August 2025
45AQI
16th August 2025
39AQI
17th August 2025
29AQI
18th August 2025
22AQI
19th August 2025
22AQI
20th August 2025
26AQI
21st August 2025
22nd August 2025
23rd August 2025
24th August 2025
25th August 2025
26th August 2025
27th August 2025
28th August 2025
29th August 2025
30th August 2025
31st August 2025
1st September 2025
2nd September 2025
3rd September 2025
4th September 2025
5th September 2025
6th September 2025
7th September 2025
8th September 2025
9th September 2025
10th September 2025
11th September 2025
12th September 2025
13th September 2025
14th September 2025
15th September 2025
16th September 2025
17th September 2025
18th September 2025
19th September 2025
20th September 2025
21st September 2025
22nd September 2025
23rd September 2025
24th September 2025
25th September 2025
26th September 2025
27th September 2025
28th September 2025
29th September 2025
30th September 2025
1st October 2025
2nd October 2025
3rd October 2025
4th October 2025
5th October 2025
6th October 2025
7th October 2025
8th October 2025
9th October 2025
10th October 2025
11th October 2025
12th October 2025
13th October 2025
14th October 2025
15th October 2025
16th October 2025
17th October 2025
18th October 2025
19th October 2025
20th October 2025
21st October 2025
22nd October 2025
23rd October 2025
24th October 2025
25th October 2025
26th October 2025
27th October 2025
28th October 2025
29th October 2025
30th October 2025
31st October 2025
1st November 2025
2nd November 2025
3rd November 2025
4th November 2025
5th November 2025
6th November 2025
7th November 2025
8th November 2025
9th November 2025
10th November 2025
11th November 2025
12th November 2025
13th November 2025
14th November 2025
15th November 2025
16th November 2025
17th November 2025
18th November 2025
19th November 2025
20th November 2025
21st November 2025
22nd November 2025
23rd November 2025
24th November 2025
25th November 2025
26th November 2025
27th November 2025
28th November 2025
29th November 2025
30th November 2025
1st December 2025
2nd December 2025
3rd December 2025
4th December 2025
5th December 2025
6th December 2025
7th December 2025
8th December 2025
9th December 2025
10th December 2025
11th December 2025
12th December 2025
13th December 2025
14th December 2025
15th December 2025
16th December 2025
17th December 2025
18th December 2025
19th December 2025
20th December 2025
21st December 2025
22nd December 2025
23rd December 2025
24th December 2025
25th December 2025
26th December 2025
27th December 2025
28th December 2025
29th December 2025
30th December 2025
31st December 2025

39AQI

32AQI

26AQI

31AQI

No. of days

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

202530AQI

3
27
3
31
18
2
79
5

Highest AQI recorded in

May

39AQI

Lowest AQI recorded in

July

26AQI

Most & Least Polluted Years Over the Last 1 Years

Most Polluted Year Recorded
2025(Avg.)
30AQI
Least Polluted Year Recorded
2025(Avg.)
30AQI

Hoorn's annual 2025 AQI (30) shows an average percentage change of NaN% (improved AQI) compared to previous years: .