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HistoryAQIPM₂.₅PM₁₀COSO₂NO₂O₃

Lustbahel Castle Observatory, Graz, Steiermark, Austria 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

Lustbahel Castle Observatory, Graz, Steiermark, Austria

2022
2023
2024
2025
AQI
.
Days

AQI Trends: Highest and Lowest

Highest AQI recorded on
17th Aug 2025
51AQI
Lowest AQI recorded on
29th Aug 2023
3AQI

Same Day Analysis (31st August):
On this day, AQI across the 4 years varied significantly: 2026 ranks 1st highest AQI at 25 of Good air quality on the same day.

Day & Night AQI Trend: 31st Jul - 1st Aug 2026

Lustbahel Castle Observatory, Graz, Steiermark, Austria

AQI
Day
Night
.

5 AM31st Jul 2026

8 PM

4 AM1st Aug 2026

Day time
Avg. Highest Time
6AM31st Jul

76AQI

Avg. Lowest Time
6PM31st Jul

40AQI

Night time
Avg. Highest Time
9PM31st Jul

56AQI

Avg. Lowest Time
4AM1st Aug

38AQI

In the last 24 hours,

Lustbahel Castle Observatory's AQI reached its highest point of 76 at 6 AM during the Day, while the lowest point, 38, was recorded at 4 AM during the Night between 31st Jul and 1st Aug 2026.

Day & Night AQI Trend : Jul - Aug 2026

Lustbahel Castle Observatory, Graz, Steiermark, Austria

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
Day
Night
3rd Jul 2026385 AMAQI
3rd Jul 2026406 AMAQI
3rd Jul 2026447 AMAQI
3rd Jul 2026408 AMAQI
3rd Jul 2026409 AMAQI
3rd Jul 20263810 AMAQI
3rd Jul 20263811 AMAQI
3rd Jul 20265212 PMAQI
3rd Jul 2026401 PMAQI
3rd Jul 2026362 PMAQI
3rd Jul 2026363 PMAQI
3rd Jul 2026304 PMAQI
3rd Jul 2026185 PMAQI
3rd Jul 2026206 PMAQI
3rd Jul 2026307 PMAQI
3rd Jul 2026298 PMAQI
3rd Jul 2026289 PMAQI
3rd Jul 20262810 PMAQI
3rd Jul 20262811 PMAQI
4th Jul 20263012 AMAQI
4th Jul 2026301 AMAQI
4th Jul 2026242 AMAQI
4th Jul 2026273 AMAQI
4th Jul 2026264 AMAQI

21°C13/28°C

4th Jul 2026265 AMAQI
4th Jul 2026296 AMAQI
4th Jul 2026287 AMAQI
4th Jul 2026228 AMAQI
4th Jul 2026309 AMAQI
4th Jul 20262810 AMAQI
4th Jul 20262611 AMAQI
4th Jul 20262912 PMAQI
4th Jul 2026281 PMAQI
4th Jul 2026182 PMAQI
4th Jul 2026193 PMAQI
4th Jul 2026264 PMAQI
4th Jul 2026255 PMAQI
4th Jul 2026126 PMAQI
4th Jul 2026247 PMAQI
4th Jul 202688 PMAQI
4th Jul 2026249 PMAQI
4th Jul 20261210 PMAQI
4th Jul 20262611 PMAQI
5th Jul 20262512 AMAQI
5th Jul 2026251 AMAQI
5th Jul 2026222 AMAQI
5th Jul 2026223 AMAQI
5th Jul 2026254 AMAQI

19°C10/28°C

5th Jul 2026255 AMAQI
5th Jul 2026296 AMAQI
5th Jul 2026277 AMAQI
5th Jul 2026298 AMAQI
5th Jul 2026269 AMAQI
5th Jul 20262510 AMAQI
5th Jul 20263611 AMAQI
5th Jul 20263212 PMAQI
5th Jul 2026261 PMAQI
5th Jul 2026262 PMAQI
5th Jul 2026223 PMAQI
5th Jul 2026304 PMAQI
5th Jul 2026265 PMAQI
5th Jul 2026286 PMAQI
5th Jul 2026287 PMAQI
5th Jul 2026288 PMAQI
5th Jul 2026239 PMAQI
5th Jul 20262610 PMAQI
5th Jul 20262211 PMAQI
6th Jul 20262212 AMAQI
6th Jul 2026241 AMAQI
6th Jul 2026152 AMAQI
6th Jul 2026133 AMAQI
6th Jul 2026204 AMAQI

20°C12/27°C

6th Jul 2026215 AMAQI
6th Jul 2026206 AMAQI
6th Jul 2026167 AMAQI
6th Jul 2026268 AMAQI
6th Jul 2026199 AMAQI
6th Jul 20262010 AMAQI
6th Jul 20261911 AMAQI
6th Jul 20262212 PMAQI
6th Jul 2026281 PMAQI
6th Jul 2026242 PMAQI
6th Jul 2026283 PMAQI
6th Jul 2026184 PMAQI
6th Jul 2026205 PMAQI
6th Jul 2026326 PMAQI
6th Jul 2026207 PMAQI
6th Jul 2026268 PMAQI
6th Jul 2026209 PMAQI
6th Jul 20262010 PMAQI
6th Jul 2026811 PMAQI
7th Jul 20261212 AMAQI
7th Jul 2026121 AMAQI
7th Jul 2026202 AMAQI
7th Jul 2026283 AMAQI
7th Jul 2026254 AMAQI

20°C13/26°C

7th Jul 2026245 AMAQI
7th Jul 2026236 AMAQI
7th Jul 2026287 AMAQI
7th Jul 2026328 AMAQI
7th Jul 2026249 AMAQI
7th Jul 20262210 AMAQI
7th Jul 20262211 AMAQI
7th Jul 20263012 PMAQI
7th Jul 2026291 PMAQI
7th Jul 2026132 PMAQI
7th Jul 2026143 PMAQI
7th Jul 2026214 PMAQI
7th Jul 2026235 PMAQI
7th Jul 2026236 PMAQI
7th Jul 202687 PMAQI
7th Jul 2026108 PMAQI
7th Jul 2026129 PMAQI
7th Jul 20261710 PMAQI
7th Jul 20261011 PMAQI
8th Jul 20261712 AMAQI
8th Jul 2026141 AMAQI
8th Jul 2026202 AMAQI
8th Jul 2026173 AMAQI
8th Jul 2026214 AMAQI

22°C14/30°C

8th Jul 2026215 AMAQI
8th Jul 2026196 AMAQI
8th Jul 2026217 AMAQI
8th Jul 2026258 AMAQI
8th Jul 2026259 AMAQI
8th Jul 20262610 AMAQI
8th Jul 20262511 AMAQI
8th Jul 20262412 PMAQI
8th Jul 2026261 PMAQI
8th Jul 2026262 PMAQI
8th Jul 2026143 PMAQI
8th Jul 2026124 PMAQI
8th Jul 2026175 PMAQI
8th Jul 2026156 PMAQI
8th Jul 2026217 PMAQI
8th Jul 2026238 PMAQI
8th Jul 2026259 PMAQI
8th Jul 20262310 PMAQI
8th Jul 20263111 PMAQI
9th Jul 20263112 AMAQI
9th Jul 2026341 AMAQI
9th Jul 2026402 AMAQI
9th Jul 2026383 AMAQI
9th Jul 2026384 AMAQI

20°C16/25°C

9th Jul 2026385 AMAQI
9th Jul 2026386 AMAQI
9th Jul 2026467 AMAQI
9th Jul 2026318 AMAQI
9th Jul 2026299 AMAQI
9th Jul 20262810 AMAQI
9th Jul 20262611 AMAQI
9th Jul 20262812 PMAQI
9th Jul 2026261 PMAQI
9th Jul 2026252 PMAQI
9th Jul 2026283 PMAQI
9th Jul 2026324 PMAQI
9th Jul 2026295 PMAQI
9th Jul 2026326 PMAQI
9th Jul 2026307 PMAQI
9th Jul 2026288 PMAQI
9th Jul 2026279 PMAQI
9th Jul 20263010 PMAQI
9th Jul 20263011 PMAQI
10th Jul 20263212 AMAQI
10th Jul 2026311 AMAQI
10th Jul 2026322 AMAQI
10th Jul 2026313 AMAQI
10th Jul 2026324 AMAQI

20°C15/26°C

10th Jul 2026305 AMAQI
10th Jul 2026276 AMAQI
10th Jul 2026267 AMAQI
10th Jul 2026248 AMAQI
10th Jul 2026289 AMAQI
10th Jul 20263210 AMAQI
10th Jul 20263011 AMAQI
10th Jul 20263412 PMAQI
10th Jul 2026341 PMAQI
10th Jul 2026322 PMAQI
10th Jul 2026263 PMAQI
10th Jul 2026374 PMAQI
10th Jul 2026375 PMAQI
10th Jul 2026366 PMAQI
10th Jul 2026367 PMAQI
10th Jul 2026338 PMAQI
10th Jul 2026309 PMAQI
10th Jul 20263410 PMAQI
10th Jul 20263211 PMAQI
11th Jul 20263412 AMAQI
11th Jul 2026421 AMAQI
11th Jul 2026272 AMAQI
11th Jul 2026313 AMAQI
11th Jul 2026324 AMAQI

21°C15/27°C

11th Jul 2026335 AMAQI
11th Jul 2026316 AMAQI
11th Jul 2026367 AMAQI
11th Jul 2026338 AMAQI
11th Jul 2026299 AMAQI
11th Jul 20262610 AMAQI
11th Jul 20263211 AMAQI
11th Jul 20263112 PMAQI
11th Jul 2026301 PMAQI
11th Jul 2026322 PMAQI
11th Jul 2026303 PMAQI
11th Jul 2026344 PMAQI
11th Jul 2026345 PMAQI
11th Jul 2026326 PMAQI
11th Jul 2026327 PMAQI
11th Jul 2026408 PMAQI
11th Jul 2026429 PMAQI
11th Jul 20264410 PMAQI
11th Jul 20264011 PMAQI
12th Jul 20263812 AMAQI
12th Jul 2026341 AMAQI
12th Jul 2026362 AMAQI
12th Jul 2026313 AMAQI
12th Jul 2026334 AMAQI

20°C14/29°C

12th Jul 2026425 AMAQI
12th Jul 2026446 AMAQI
12th Jul 2026507 AMAQI
12th Jul 2026528 AMAQI
12th Jul 2026469 AMAQI
12th Jul 20263010 AMAQI
12th Jul 20263011 AMAQI
12th Jul 20263012 PMAQI
12th Jul 2026311 PMAQI
12th Jul 2026312 PMAQI
12th Jul 2026303 PMAQI
12th Jul 2026304 PMAQI
12th Jul 2026315 PMAQI
12th Jul 2026316 PMAQI
12th Jul 2026307 PMAQI
12th Jul 2026358 PMAQI
12th Jul 2026279 PMAQI
12th Jul 20262910 PMAQI
12th Jul 20262911 PMAQI
13th Jul 20262812 AMAQI
13th Jul 2026321 AMAQI
13th Jul 2026302 AMAQI
13th Jul 2026313 AMAQI
13th Jul 2026344 AMAQI

20°C13/28°C

13th Jul 2026315 AMAQI
13th Jul 2026316 AMAQI
13th Jul 2026337 AMAQI
13th Jul 2026318 AMAQI
13th Jul 2026279 AMAQI
13th Jul 20263310 AMAQI
13th Jul 20263611 AMAQI
13th Jul 20263412 PMAQI
13th Jul 2026291 PMAQI
13th Jul 2026342 PMAQI
13th Jul 2026313 PMAQI
13th Jul 2026314 PMAQI
13th Jul 2026345 PMAQI
13th Jul 2026346 PMAQI
13th Jul 2026317 PMAQI
13th Jul 2026278 PMAQI
13th Jul 2026299 PMAQI
13th Jul 20263310 PMAQI
13th Jul 20262911 PMAQI
14th Jul 20263112 AMAQI
14th Jul 2026291 AMAQI
14th Jul 2026312 AMAQI
14th Jul 2026423 AMAQI
14th Jul 2026424 AMAQI

22°C13/32°C

14th Jul 2026405 AMAQI
14th Jul 2026406 AMAQI
14th Jul 2026467 AMAQI
14th Jul 2026448 AMAQI
14th Jul 2026389 AMAQI
14th Jul 20263810 AMAQI
14th Jul 20263611 AMAQI
14th Jul 20264212 PMAQI
14th Jul 2026421 PMAQI
14th Jul 2026462 PMAQI
14th Jul 2026463 PMAQI
14th Jul 2026494 PMAQI
14th Jul 2026305 PMAQI
14th Jul 2026346 PMAQI
14th Jul 2026317 PMAQI
14th Jul 2026318 PMAQI
14th Jul 2026279 PMAQI
14th Jul 20263110 PMAQI
14th Jul 20263111 PMAQI
15th Jul 20264212 AMAQI
15th Jul 2026331 AMAQI
15th Jul 2026332 AMAQI
15th Jul 2026363 AMAQI
15th Jul 2026364 AMAQI

20°C14/30°C

15th Jul 2026385 AMAQI
15th Jul 2026446 AMAQI
15th Jul 2026507 AMAQI
15th Jul 2026358 AMAQI
15th Jul 2026189 AMAQI
15th Jul 20262010 AMAQI
15th Jul 20262011 AMAQI
15th Jul 20262112 PMAQI
15th Jul 2026211 PMAQI
15th Jul 2026202 PMAQI
15th Jul 2026173 PMAQI
15th Jul 2026184 PMAQI
15th Jul 2026205 PMAQI
15th Jul 2026226 PMAQI
15th Jul 2026147 PMAQI
15th Jul 2026308 PMAQI
15th Jul 2026179 PMAQI
15th Jul 20262010 PMAQI
15th Jul 20261811 PMAQI
16th Jul 20261612 AMAQI
16th Jul 2026161 AMAQI
16th Jul 2026142 AMAQI
16th Jul 2026153 AMAQI
16th Jul 2026164 AMAQI

21°C15/31°C

16th Jul 2026165 AMAQI
16th Jul 2026146 AMAQI
16th Jul 2026127 AMAQI
16th Jul 2026128 AMAQI
16th Jul 2026139 AMAQI
16th Jul 20261610 AMAQI
16th Jul 20261611 AMAQI
16th Jul 20261812 PMAQI
16th Jul 2026261 PMAQI
16th Jul 2026262 PMAQI
16th Jul 2026163 PMAQI
16th Jul 2026164 PMAQI
16th Jul 2026165 PMAQI
16th Jul 2026166 PMAQI
16th Jul 2026157 PMAQI
16th Jul 2026168 PMAQI
16th Jul 2026149 PMAQI
16th Jul 20261410 PMAQI
16th Jul 20261311 PMAQI
17th Jul 20261812 AMAQI
17th Jul 2026201 AMAQI
17th Jul 2026192 AMAQI
17th Jul 2026183 AMAQI
17th Jul 2026184 AMAQI

21°C15/29°C

17th Jul 2026185 AMAQI
17th Jul 2026366 AMAQI
17th Jul 2026627 AMAQI
17th Jul 2026598 AMAQI
17th Jul 2026279 AMAQI
17th Jul 20262510 AMAQI
17th Jul 20265111 AMAQI
17th Jul 20264612 PMAQI
17th Jul 2026381 PMAQI
17th Jul 2026422 PMAQI
17th Jul 2026423 PMAQI
17th Jul 2026444 PMAQI
17th Jul 2026445 PMAQI
17th Jul 2026406 PMAQI
17th Jul 2026347 PMAQI
17th Jul 2026238 PMAQI
17th Jul 2026259 PMAQI
17th Jul 20262710 PMAQI
17th Jul 20263311 PMAQI
18th Jul 20263612 AMAQI
18th Jul 2026381 AMAQI
18th Jul 2026382 AMAQI
18th Jul 2026403 AMAQI
18th Jul 2026364 AMAQI

22°C17/30°C

18th Jul 2026305 AMAQI
18th Jul 2026216 AMAQI
18th Jul 2026217 AMAQI
18th Jul 2026258 AMAQI
18th Jul 2026349 AMAQI
18th Jul 20263110 AMAQI
18th Jul 20263311 AMAQI
18th Jul 20263612 PMAQI
18th Jul 2026311 PMAQI
18th Jul 2026292 PMAQI
18th Jul 2026253 PMAQI
18th Jul 2026254 PMAQI
18th Jul 2026255 PMAQI
18th Jul 2026236 PMAQI
18th Jul 2026237 PMAQI
18th Jul 2026258 PMAQI
18th Jul 2026259 PMAQI
18th Jul 20263310 PMAQI
18th Jul 20263311 PMAQI
19th Jul 20262912 AMAQI
19th Jul 2026311 AMAQI
19th Jul 2026312 AMAQI
19th Jul 2026383 AMAQI
19th Jul 2026334 AMAQI

19°C14/28°C

19th Jul 2026365 AMAQI
19th Jul 2026366 AMAQI
19th Jul 2026407 AMAQI
19th Jul 2026428 AMAQI
19th Jul 2026429 AMAQI
19th Jul 20263610 AMAQI
19th Jul 20263211 AMAQI
19th Jul 20262512 PMAQI
19th Jul 2026251 PMAQI
19th Jul 2026232 PMAQI
19th Jul 2026233 PMAQI
19th Jul 2026254 PMAQI
19th Jul 2026215 PMAQI
19th Jul 2026236 PMAQI
19th Jul 2026237 PMAQI
19th Jul 2026258 PMAQI
19th Jul 2026279 PMAQI
19th Jul 20262510 PMAQI
19th Jul 20262511 PMAQI
20th Jul 20262112 AMAQI
20th Jul 2026231 AMAQI
20th Jul 2026212 AMAQI
20th Jul 2026273 AMAQI
20th Jul 2026214 AMAQI

19°C13/27°C

20th Jul 2026385 AMAQI
20th Jul 2026426 AMAQI
20th Jul 2026387 AMAQI
20th Jul 2026388 AMAQI
20th Jul 2026469 AMAQI
20th Jul 20264210 AMAQI
20th Jul 20264611 AMAQI
20th Jul 20264012 PMAQI
20th Jul 2026401 PMAQI
20th Jul 2026362 PMAQI
20th Jul 2026273 PMAQI
20th Jul 2026274 PMAQI
20th Jul 2026335 PMAQI
20th Jul 2026276 PMAQI
20th Jul 2026237 PMAQI
20th Jul 2026218 PMAQI
20th Jul 2026219 PMAQI
20th Jul 20263810 PMAQI
20th Jul 20263811 PMAQI
21st Jul 20263812 AMAQI
21st Jul 2026331 AMAQI
21st Jul 2026362 AMAQI
21st Jul 2026423 AMAQI
21st Jul 2026404 AMAQI

18°C11/25°C

21st Jul 2026406 AMAQI
21st Jul 2026407 AMAQI
21st Jul 2026388 AMAQI
21st Jul 2026389 AMAQI
21st Jul 20264210 AMAQI
21st Jul 20263311 AMAQI
21st Jul 20264212 PMAQI
21st Jul 2026231 PMAQI
21st Jul 2026212 PMAQI
21st Jul 2026273 PMAQI
21st Jul 2026214 PMAQI
21st Jul 2026215 PMAQI
21st Jul 2026316 PMAQI
21st Jul 2026337 PMAQI
21st Jul 2026338 PMAQI
21st Jul 2026259 PMAQI
21st Jul 20263310 PMAQI
21st Jul 20263811 PMAQI
22nd Jul 20263812 AMAQI
22nd Jul 2026331 AMAQI
22nd Jul 2026382 AMAQI
22nd Jul 2026383 AMAQI
22nd Jul 2026404 AMAQI

16°C10/22°C

22nd Jul 2026385 AMAQI
22nd Jul 2026386 AMAQI
22nd Jul 2026367 AMAQI
22nd Jul 2026368 AMAQI
22nd Jul 2026339 AMAQI
22nd Jul 20262110 AMAQI
22nd Jul 20262111 AMAQI
22nd Jul 20263112 PMAQI
22nd Jul 2026211 PMAQI
22nd Jul 2026212 PMAQI
22nd Jul 2026213 PMAQI
22nd Jul 2026214 PMAQI
22nd Jul 2026255 PMAQI
22nd Jul 2026256 PMAQI
22nd Jul 2026227 PMAQI
22nd Jul 2026218 PMAQI
22nd Jul 2026219 PMAQI
22nd Jul 20262110 PMAQI
22nd Jul 20262911 PMAQI
23rd Jul 20264012 AMAQI
23rd Jul 2026321 AMAQI
23rd Jul 2026212 AMAQI
23rd Jul 2026213 AMAQI
23rd Jul 2026214 AMAQI

17°C9/24°C

23rd Jul 2026215 AMAQI
23rd Jul 2026256 AMAQI
23rd Jul 2026237 AMAQI
23rd Jul 2026238 AMAQI
23rd Jul 2026409 AMAQI
23rd Jul 20264210 AMAQI
23rd Jul 20264611 AMAQI
23rd Jul 20264212 PMAQI
23rd Jul 2026401 PMAQI
23rd Jul 2026342 PMAQI
23rd Jul 2026233 PMAQI
23rd Jul 2026254 PMAQI
23rd Jul 2026255 PMAQI
23rd Jul 2026276 PMAQI
23rd Jul 2026257 PMAQI
23rd Jul 2026238 PMAQI
23rd Jul 2026259 PMAQI
23rd Jul 20262710 PMAQI
23rd Jul 20262511 PMAQI
24th Jul 20262712 AMAQI
24th Jul 2026251 AMAQI
24th Jul 2026272 AMAQI
24th Jul 2026273 AMAQI
24th Jul 2026254 AMAQI

17°C11/25°C

24th Jul 2026275 AMAQI
24th Jul 2026256 AMAQI
24th Jul 2026277 AMAQI
24th Jul 2026388 AMAQI
24th Jul 2026389 AMAQI
24th Jul 20263610 AMAQI
24th Jul 20262511 AMAQI
24th Jul 20262512 PMAQI
24th Jul 2026231 PMAQI
24th Jul 2026232 PMAQI
24th Jul 2026253 PMAQI
24th Jul 2026234 PMAQI
24th Jul 2026235 PMAQI
24th Jul 2026216 PMAQI
24th Jul 2026237 PMAQI
24th Jul 2026218 PMAQI
24th Jul 2026219 PMAQI
24th Jul 20262110 PMAQI
24th Jul 20262311 PMAQI
25th Jul 20262312 AMAQI
25th Jul 2026361 AMAQI
25th Jul 2026212 AMAQI
25th Jul 2026213 AMAQI
25th Jul 2026234 AMAQI

16°C8/24°C

25th Jul 2026235 AMAQI
25th Jul 2026236 AMAQI
25th Jul 2026217 AMAQI
25th Jul 2026218 AMAQI
25th Jul 2026239 AMAQI
25th Jul 20262310 AMAQI
25th Jul 20262511 AMAQI
25th Jul 20262312 PMAQI
25th Jul 2026251 PMAQI
25th Jul 2026252 PMAQI
25th Jul 2026233 PMAQI
25th Jul 2026254 PMAQI
25th Jul 2026235 PMAQI
25th Jul 2026236 PMAQI
25th Jul 2026257 PMAQI
25th Jul 2026258 PMAQI
25th Jul 2026259 PMAQI
25th Jul 20262510 PMAQI
25th Jul 20262511 PMAQI
26th Jul 20263812 AMAQI
26th Jul 2026381 AMAQI
26th Jul 2026382 AMAQI
26th Jul 2026403 AMAQI
26th Jul 2026384 AMAQI

19°C9/28°C

26th Jul 2026405 AMAQI
26th Jul 2026446 AMAQI
26th Jul 2026427 AMAQI
26th Jul 2026468 AMAQI
26th Jul 2026409 AMAQI
26th Jul 20264210 AMAQI
26th Jul 20264411 AMAQI
26th Jul 20264212 PMAQI
26th Jul 2026421 PMAQI
26th Jul 2026382 PMAQI
26th Jul 2026403 PMAQI
26th Jul 2026384 PMAQI
26th Jul 2026405 PMAQI
26th Jul 2026386 PMAQI
26th Jul 2026297 PMAQI
26th Jul 2026338 PMAQI
26th Jul 2026389 PMAQI
26th Jul 20264210 PMAQI
26th Jul 20264011 PMAQI
27th Jul 20264012 AMAQI
27th Jul 2026361 AMAQI
27th Jul 2026422 AMAQI
27th Jul 2026423 AMAQI
27th Jul 2026404 AMAQI

20°C14/30°C

27th Jul 2026445 AMAQI
27th Jul 2026466 AMAQI
27th Jul 2026487 AMAQI
27th Jul 2026488 AMAQI
27th Jul 2026489 AMAQI
27th Jul 20265210 AMAQI
27th Jul 20265011 AMAQI
27th Jul 20264812 PMAQI
27th Jul 2026401 PMAQI
27th Jul 2026362 PMAQI
27th Jul 2026273 PMAQI
27th Jul 2026294 PMAQI
27th Jul 2026255 PMAQI
27th Jul 2026236 PMAQI
27th Jul 2026277 PMAQI
27th Jul 2026428 PMAQI
27th Jul 2026409 PMAQI
27th Jul 20263010 PMAQI
27th Jul 20262111 PMAQI
28th Jul 20262112 AMAQI
28th Jul 2026211 AMAQI
28th Jul 2026212 AMAQI
28th Jul 2026233 AMAQI
28th Jul 2026214 AMAQI

19°C13/28°C

28th Jul 2026235 AMAQI
28th Jul 2026236 AMAQI
28th Jul 2026257 AMAQI
28th Jul 2026258 AMAQI
28th Jul 2026389 AMAQI
28th Jul 20263810 AMAQI
28th Jul 20264011 AMAQI
28th Jul 20263812 PMAQI
28th Jul 2026251 PMAQI
28th Jul 2026252 PMAQI
28th Jul 2026233 PMAQI
28th Jul 2026254 PMAQI
28th Jul 2026255 PMAQI
28th Jul 2026236 PMAQI
28th Jul 2026257 PMAQI
28th Jul 2026288 PMAQI
28th Jul 2026299 PMAQI
28th Jul 20262710 PMAQI
28th Jul 20263111 PMAQI
29th Jul 20264012 AMAQI
29th Jul 2026421 AMAQI
29th Jul 2026422 AMAQI
29th Jul 2026423 AMAQI
29th Jul 2026424 AMAQI

21°C15/27°C

29th Jul 2026465 AMAQI
29th Jul 2026426 AMAQI
29th Jul 2026517 AMAQI
29th Jul 2026468 AMAQI
29th Jul 2026519 AMAQI
29th Jul 20265110 AMAQI
29th Jul 20264611 AMAQI
29th Jul 20264412 PMAQI
29th Jul 2026381 PMAQI
29th Jul 2026422 PMAQI
29th Jul 2026383 PMAQI
29th Jul 2026444 PMAQI
29th Jul 2026405 PMAQI
29th Jul 2026386 PMAQI
29th Jul 2026387 PMAQI
29th Jul 2026448 PMAQI
29th Jul 2026469 PMAQI
29th Jul 20264010 PMAQI
29th Jul 20263811 PMAQI
30th Jul 20264412 AMAQI
30th Jul 2026421 AMAQI
30th Jul 2026442 AMAQI
30th Jul 2026443 AMAQI
30th Jul 2026464 AMAQI

23°C15/32°C

30th Jul 2026505 AMAQI
30th Jul 2026466 AMAQI
30th Jul 2026487 AMAQI
30th Jul 2026528 AMAQI
30th Jul 2026519 AMAQI
30th Jul 20265510 AMAQI
30th Jul 20265511 AMAQI
30th Jul 20265512 PMAQI
30th Jul 2026501 PMAQI
30th Jul 2026462 PMAQI
30th Jul 2026483 PMAQI
30th Jul 2026464 PMAQI
30th Jul 2026465 PMAQI
30th Jul 2026446 PMAQI
30th Jul 2026427 PMAQI
30th Jul 2026448 PMAQI
30th Jul 2026589 PMAQI
30th Jul 20265210 PMAQI
30th Jul 20262611 PMAQI
31st Jul 20262112 AMAQI
31st Jul 2026291 AMAQI
31st Jul 2026422 AMAQI
31st Jul 2026513 AMAQI
31st Jul 2026524 AMAQI

23°C16/33°C

31st Jul 2026535 AMAQI
31st Jul 2026766 AMAQI
31st Jul 2026487 AMAQI
31st Jul 2026588 AMAQI
31st Jul 2026699 AMAQI
31st Jul 20266210 AMAQI
31st Jul 20265411 AMAQI
31st Jul 20265112 PMAQI
31st Jul 2026581 PMAQI
31st Jul 2026702 PMAQI
31st Jul 2026733 PMAQI
31st Jul 2026714 PMAQI
31st Jul 2026535 PMAQI
31st Jul 2026406 PMAQI
31st Jul 2026467 PMAQI
31st Jul 2026588 PMAQI
31st Jul 2026569 PMAQI
31st Jul 20264610 PMAQI
31st Jul 20264611 PMAQI
1st Aug 20265112 AMAQI
1st Aug 2026531 AMAQI
1st Aug 2026512 AMAQI
1st Aug 2026403 AMAQI
1st Aug 2026384 AMAQI

24°C17/35°C

1st Aug 2026575 AMAQI
5 AM
1st Aug 2026546 AMAQI
1st Aug 2026427 AMAQI
1st Aug 2026388 AMAQI
1st Aug 2026409 AMAQI
1st Aug 20263610 AMAQI
1st Aug 20263311 AMAQI
1st Aug 20263112 PMAQI
12 PM
1st Aug 2026531 PMAQI
1st Aug 2026562 PMAQI
1st Aug 2026443 PMAQI
1st Aug 2026294 PMAQI
1st Aug 2026295 PMAQI
1st Aug 2026316 PMAQI
1st Aug 2026317 PMAQI
1st Aug 2026348 PMAQI
8 PM
1st Aug 2026409 PMAQI
1st Aug 20263610 PMAQI
1st Aug 20264211 PMAQI
12 AM
4 AM

24°C16/34°C

Day time
Avg. Highest Time
6 AM - 12 PM

35AQI

7 hours / Day
210 hours / Month
Avg. Lowest Time
7 PM

27AQI

1 hours / Day
30 hours / Month
In the last 30 days, during the daytime, the highest AQI was between 6 AM to 12 PM (Avg. 35), while the lowest AQI was between 7 PM to 7 PM (Avg. 27).
Night time
Avg. Highest Time
3 AM - 4 AM

32AQI

2 hours / Day
60 hours / Month
Avg. Lowest Time
9 PM - 11 PM

29AQI

3 hours / Day
90 hours / Month
In the last 30 days, during the daytime, the highest AQI was between 3 AM to 4 AM (Avg. 32), while the lowest AQI was between 9 PM to 11 PM (Avg. 29).

2026 Days Vs Air Quality

Lustbahel Castle Observatory, Graz, Steiermark, Austria

2026

58%

122

38%

80

3%

7

Total number of days with different AQI categories in last 213 days in 2026 (152 days remaining)

Good
122 Days
Moderate
80 Days
Poor
7 Days
Unhealthy
0 Days
Severe
0 Days
Hazardous
0 Days

Under WHO’s Safe Air Quality Limits: 58%

Health Risk Level:

Considerable

In 2026, 58% of 213 days were within WHO’s safe air quality limits, and 42% exceeded them. The risk of health issues is Considerable, with potential for conditions in sensitive individuals.

Annual Air Quality Insights

Lustbahel Castle Observatory, Graz, Steiermark, Austria

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
119AQI (US)
2nd January 2026
68AQI (US)
3rd January 2026
62AQI (US)
4th January 2026
60AQI (US)
5th January 2026
65AQI (US)
6th January 2026
74AQI (US)
7th January 2026
59AQI (US)
8th January 2026
73AQI (US)
9th January 2026
96AQI (US)
10th January 2026
63AQI (US)
11th January 2026
44AQI (US)
12th January 2026
58AQI (US)
13th January 2026
82AQI (US)
14th January 2026
77AQI (US)
15th January 2026
88AQI (US)
16th January 2026
125AQI (US)
17th January 2026
104AQI (US)
18th January 2026
70AQI (US)
19th January 2026
83AQI (US)
20th January 2026
91AQI (US)
21st January 2026
95AQI (US)
22nd January 2026
105AQI (US)
23rd January 2026
128AQI (US)
24th January 2026
145AQI (US)
25th January 2026
109AQI (US)
26th January 2026
58AQI (US)
27th January 2026
51AQI (US)
28th January 2026
51AQI (US)
29th January 2026
47AQI (US)
30th January 2026
56AQI (US)
31st January 2026
63AQI (US)
1st February 2026
67AQI (US)
2nd February 2026
81AQI (US)
3rd February 2026
79AQI (US)
4th February 2026
62AQI (US)
5th February 2026
51AQI (US)
6th February 2026
57AQI (US)
7th February 2026
59AQI (US)
8th February 2026
61AQI (US)
9th February 2026
62AQI (US)
10th February 2026
58AQI (US)
11th February 2026
56AQI (US)
12th February 2026
44AQI (US)
13th February 2026
25AQI (US)
14th February 2026
50AQI (US)
15th February 2026
27AQI (US)
16th February 2026
57AQI (US)
17th February 2026
53AQI (US)
18th February 2026
27AQI (US)
19th February 2026
48AQI (US)
20th February 2026
53AQI (US)
21st February 2026
86AQI (US)
22nd February 2026
72AQI (US)
23rd February 2026
54AQI (US)
24th February 2026
38AQI (US)
25th February 2026
37AQI (US)
26th February 2026
61AQI (US)
27th February 2026
76AQI (US)
28th February 2026
81AQI (US)
1st March 2026
81AQI (US)
2nd March 2026
92AQI (US)
3rd March 2026
92AQI (US)
4th March 2026
68AQI (US)
5th March 2026
53AQI (US)
6th March 2026
67AQI (US)
7th March 2026
82AQI (US)
8th March 2026
72AQI (US)
9th March 2026
66AQI (US)
10th March 2026
69AQI (US)
11th March 2026
72AQI (US)
12th March 2026
59AQI (US)
13th March 2026
47AQI (US)
14th March 2026
40AQI (US)
15th March 2026
44AQI (US)
16th March 2026
55AQI (US)
17th March 2026
28AQI (US)
18th March 2026
61AQI (US)
19th March 2026
57AQI (US)
20th March 2026
70AQI (US)
21st March 2026
83AQI (US)
22nd March 2026
63AQI (US)
23rd March 2026
59AQI (US)
24th March 2026
57AQI (US)
25th March 2026
62AQI (US)
26th March 2026
19AQI (US)
27th March 2026
22AQI (US)
28th March 2026
25AQI (US)
29th March 2026
27AQI (US)
30th March 2026
24AQI (US)
31st March 2026
29AQI (US)
1st April 2026
28AQI (US)
2nd April 2026
39AQI (US)
3rd April 2026
41AQI (US)
4th April 2026
33AQI (US)
5th April 2026
47AQI (US)
6th April 2026
32AQI (US)
7th April 2026
29AQI (US)
8th April 2026
26AQI (US)
9th April 2026
32AQI (US)
10th April 2026
54AQI (US)
11th April 2026
74AQI (US)
12th April 2026
53AQI (US)
13th April 2026
48AQI (US)
14th April 2026
59AQI (US)
15th April 2026
74AQI (US)
16th April 2026
66AQI (US)
17th April 2026
18th April 2026
43AQI (US)
19th April 2026
35AQI (US)
20th April 2026
24AQI (US)
21st April 2026
35AQI (US)
22nd April 2026
23rd April 2026
24AQI (US)
24th April 2026
22AQI (US)
25th April 2026
21AQI (US)
26th April 2026
25AQI (US)
27th April 2026
25AQI (US)
28th April 2026
27AQI (US)
29th April 2026
23AQI (US)
30th April 2026
22AQI (US)
1st May 2026
26AQI (US)
2nd May 2026
22AQI (US)
3rd May 2026
28AQI (US)
4th May 2026
34AQI (US)
5th May 2026
36AQI (US)
6th May 2026
25AQI (US)
7th May 2026
23AQI (US)
8th May 2026
22AQI (US)
9th May 2026
10th May 2026
41AQI (US)
11th May 2026
32AQI (US)
12th May 2026
14AQI (US)
13th May 2026
21AQI (US)
14th May 2026
30AQI (US)
15th May 2026
27AQI (US)
16th May 2026
37AQI (US)
17th May 2026
44AQI (US)
18th May 2026
29AQI (US)
19th May 2026
34AQI (US)
20th May 2026
35AQI (US)
21st May 2026
46AQI (US)
22nd May 2026
29AQI (US)
23rd May 2026
32AQI (US)
24th May 2026
40AQI (US)
25th May 2026
51AQI (US)
26th May 2026
50AQI (US)
27th May 2026
42AQI (US)
28th May 2026
32AQI (US)
29th May 2026
26AQI (US)
30th May 2026
28AQI (US)
31st May 2026
29AQI (US)
1st June 2026
27AQI (US)
2nd June 2026
33AQI (US)
3rd June 2026
26AQI (US)
4th June 2026
25AQI (US)
5th June 2026
24AQI (US)
6th June 2026
25AQI (US)
7th June 2026
22AQI (US)
8th June 2026
27AQI (US)
9th June 2026
28AQI (US)
10th June 2026
20AQI (US)
11th June 2026
11AQI (US)
12th June 2026
22AQI (US)
13th June 2026
20AQI (US)
14th June 2026
24AQI (US)
15th June 2026
24AQI (US)
16th June 2026
30AQI (US)
17th June 2026
30AQI (US)
18th June 2026
38AQI (US)
19th June 2026
48AQI (US)
20th June 2026
52AQI (US)
21st June 2026
51AQI (US)
22nd June 2026
51AQI (US)
23rd June 2026
53AQI (US)
24th June 2026
49AQI (US)
25th June 2026
37AQI (US)
26th June 2026
41AQI (US)
27th June 2026
58AQI (US)
28th June 2026
63AQI (US)
29th June 2026
73AQI (US)
30th June 2026
68AQI (US)
1st July 2026
57AQI (US)
2nd July 2026
20AQI (US)
3rd July 2026
34AQI (US)
4th July 2026
24AQI (US)
5th July 2026
26AQI (US)
6th July 2026
21AQI (US)
7th July 2026
20AQI (US)
8th July 2026
21AQI (US)
9th July 2026
32AQI (US)
10th July 2026
32AQI (US)
11th July 2026
34AQI (US)
12th July 2026
35AQI (US)
13th July 2026
31AQI (US)
14th July 2026
37AQI (US)
15th July 2026
27AQI (US)
16th July 2026
16AQI (US)
17th July 2026
34AQI (US)
18th July 2026
30AQI (US)
19th July 2026
30AQI (US)
20th July 2026
32AQI (US)
21st July 2026
33AQI (US)
22nd July 2026
29AQI (US)
23rd July 2026
29AQI (US)
24th July 2026
26AQI (US)
25th July 2026
24AQI (US)
26th July 2026
40AQI (US)
27th July 2026
38AQI (US)
28th July 2026
27AQI (US)
29th July 2026
43AQI (US)
30th July 2026
47AQI (US)
31st July 2026
53AQI (US)
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

80AQI (US)

57AQI (US)

56AQI (US)

38AQI (US)

32AQI (US)

37AQI (US)

32AQI (US)

No. of days

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

202647AQI (US)

2
22
7
8
20
10
21
22
6
29
1
22
8
29
2
122
80
7

Highest AQI (US) recorded in

January

80AQI (US)

Lowest AQI (US) recorded in

July

32AQI (US)

202543AQI (US)

9
22
1
27
20
11
30
31
30
31
30
1
28
2
14
17
9
21
1
30
234
131

Highest AQI (US) recorded in

February

68AQI (US)

Lowest AQI (US) recorded in

July

25AQI (US)

202425AQI (US)

30
29
29
2
24
1
31
30
28
3
31
30
27
4
9
21
10
21
308
52

Highest AQI (US) recorded in

November

56AQI (US)

Lowest AQI (US) recorded in

September

14AQI (US)

202313AQI (US)

30
28
31
27
31
30
31
31
30
31
28
31
359

Highest AQI (US) recorded in

December

18AQI (US)

Lowest AQI (US) recorded in

April

10AQI (US)

202216AQI (US)

30
21
31
30
31
30
23
2
29
31
30
31
319

Highest AQI (US) recorded in

March

25AQI (US)

Lowest AQI (US) recorded in

September

11AQI (US)

202116AQI (US)

29
27
1
31
30
31
30
31
31
30
31
30
31
362
1

Highest AQI (US) recorded in

February

24AQI (US)

Lowest AQI (US) recorded in

May

8AQI (US)

202013AQI (US)

11
2
19
17
30
31
31
30
30
30
31
260
2

Highest AQI (US) recorded in

March

24AQI (US)

Lowest AQI (US) recorded in

June

8AQI (US)

Most & Least Polluted Years Over the Last 7 Years

Most Polluted Year Recorded
2026(Avg.)
47AQI (US)
Least Polluted Year Recorded
2020(Avg.)
13AQI (US)

Lustbahel Castle Observatory's annual 2026 AQI (US) (47) shows an average percentage change of 167.9% (worsened AQI (US)) compared to previous years: 2020 (13), 2021 (16), 2022 (16), 2023 (13), 2024 (25), 2025 (43).