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
2021
2022
2023
2024
2025
AQI
.
Days
AQI Trends: Highest and Lowest
Highest AQI recorded on
1st Aug 2024
33AQILowest AQI recorded on
29th Aug 2023
3AQISame Day Analysis (1st August ):
On this day, AQI across the 5 years varied significantly: 2025 ranks 2nd highest AQI at 23 of Good air quality, showing improvement over 2024 on the same day.
Download 2024 Annual Data
World Air Quality Report
Day & Night AQI Trend: 1st Aug - 2nd Aug 2025
Lustbahel Castle Observatory, Graz, Steiermark, Austria
AQI
Day
Night
.
5 AM1st Aug 2025
8 PM
4 AM2nd Aug 2025
Day time
Avg. Highest Time
10AM1st Aug
29AQI
Avg. Lowest Time
1PM1st Aug
22AQI
Night time
Avg. Highest Time
4AM2nd Aug
50AQI
Avg. Lowest Time
2AM2nd Aug
22AQI
In the last 24 hours,
Lustbahel Castle Observatory's AQI reached its highest point of 50 at 4 AM during the Night, while the lowest point, 22, was recorded at 2 AM during the Night between 1st Aug and 2nd Aug 2025.
Day & Night AQI Trend : Jul - Aug 2025
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 - 02nd02nd
Day
Night
3rd Jul 2025315 AMAQI
3rd Jul 2025316 AMAQI
3rd Jul 2025317 AMAQI
3rd Jul 2025318 AMAQI
3rd Jul 2025319 AMAQI
3rd Jul 20253110 AMAQI
3rd Jul 20253711 AMAQI
3rd Jul 20253612 PMAQI
3rd Jul 2025341 PMAQI
3rd Jul 2025342 PMAQI
3rd Jul 2025333 PMAQI
3rd Jul 2025334 PMAQI
3rd Jul 2025335 PMAQI
3rd Jul 2025326 PMAQI
3rd Jul 2025337 PMAQI
3rd Jul 2025328 PMAQI
3rd Jul 2025339 PMAQI
3rd Jul 20253410 PMAQI
3rd Jul 20253411 PMAQI
4th Jul 20253412 AMAQI
4th Jul 2025341 AMAQI
4th Jul 2025342 AMAQI
4th Jul 2025323 AMAQI
4th Jul 2025334 AMAQI
25°C16/34°C
4th Jul 2025345 AMAQI
4th Jul 2025366 AMAQI
4th Jul 2025367 AMAQI
4th Jul 2025368 AMAQI
4th Jul 2025369 AMAQI
4th Jul 20253810 AMAQI
4th Jul 20253811 AMAQI
4th Jul 20253812 PMAQI
4th Jul 2025341 PMAQI
4th Jul 2025352 PMAQI
4th Jul 2025343 PMAQI
4th Jul 2025334 PMAQI
4th Jul 2025345 PMAQI
4th Jul 2025346 PMAQI
4th Jul 2025327 PMAQI
4th Jul 2025338 PMAQI
4th Jul 2025349 PMAQI
4th Jul 20253510 PMAQI
4th Jul 20253611 PMAQI
5th Jul 20253512 AMAQI
5th Jul 2025361 AMAQI
5th Jul 2025342 AMAQI
5th Jul 2025323 AMAQI
5th Jul 2025344 AMAQI
21°C16/29°C
5th Jul 2025345 AMAQI
5th Jul 2025366 AMAQI
5th Jul 2025357 AMAQI
5th Jul 2025358 AMAQI
5th Jul 2025379 AMAQI
5th Jul 20253610 AMAQI
5th Jul 20253611 AMAQI
5th Jul 20253512 PMAQI
5th Jul 2025331 PMAQI
5th Jul 2025332 PMAQI
5th Jul 2025333 PMAQI
5th Jul 2025334 PMAQI
5th Jul 2025325 PMAQI
5th Jul 2025336 PMAQI
5th Jul 2025337 PMAQI
5th Jul 2025348 PMAQI
5th Jul 2025349 PMAQI
5th Jul 20253410 PMAQI
5th Jul 20253611 PMAQI
6th Jul 20253512 AMAQI
6th Jul 2025351 AMAQI
6th Jul 2025352 AMAQI
6th Jul 2025353 AMAQI
6th Jul 2025344 AMAQI
21°C15/29°C
6th Jul 2025355 AMAQI
6th Jul 2025346 AMAQI
6th Jul 2025357 AMAQI
6th Jul 2025358 AMAQI
6th Jul 2025349 AMAQI
6th Jul 20253410 AMAQI
6th Jul 20253311 AMAQI
6th Jul 20253412 PMAQI
6th Jul 2025331 PMAQI
6th Jul 2025322 PMAQI
6th Jul 2025333 PMAQI
6th Jul 2025314 PMAQI
6th Jul 2025345 PMAQI
6th Jul 2025336 PMAQI
6th Jul 2025337 PMAQI
6th Jul 2025348 PMAQI
6th Jul 2025339 PMAQI
6th Jul 20253510 PMAQI
6th Jul 20253411 PMAQI
7th Jul 20253412 AMAQI
7th Jul 2025341 AMAQI
7th Jul 2025332 AMAQI
7th Jul 2025323 AMAQI
7th Jul 2025304 AMAQI
23°C15/30°C
7th Jul 2025305 AMAQI
7th Jul 2025306 AMAQI
7th Jul 2025297 AMAQI
7th Jul 2025288 AMAQI
7th Jul 2025309 AMAQI
7th Jul 20253010 AMAQI
7th Jul 20252911 AMAQI
7th Jul 20252912 PMAQI
7th Jul 2025281 PMAQI
7th Jul 2025282 PMAQI
7th Jul 2025283 PMAQI
7th Jul 2025284 PMAQI
7th Jul 2025285 PMAQI
7th Jul 2025276 PMAQI
7th Jul 2025287 PMAQI
7th Jul 2025288 PMAQI
7th Jul 2025299 PMAQI
7th Jul 20253010 PMAQI
7th Jul 20253011 PMAQI
8th Jul 20253012 AMAQI
8th Jul 2025301 AMAQI
8th Jul 2025272 AMAQI
8th Jul 2025263 AMAQI
8th Jul 2025224 AMAQI
16°C13/20°C
8th Jul 2025225 AMAQI
8th Jul 2025246 AMAQI
8th Jul 2025207 AMAQI
8th Jul 2025258 AMAQI
8th Jul 2025249 AMAQI
8th Jul 20252410 AMAQI
8th Jul 20252511 AMAQI
8th Jul 20252612 PMAQI
8th Jul 2025231 PMAQI
8th Jul 2025232 PMAQI
8th Jul 2025243 PMAQI
8th Jul 2025234 PMAQI
8th Jul 2025235 PMAQI
8th Jul 2025246 PMAQI
8th Jul 2025257 PMAQI
8th Jul 2025248 PMAQI
8th Jul 2025259 PMAQI
8th Jul 20252410 PMAQI
8th Jul 20252411 PMAQI
9th Jul 20252412 AMAQI
9th Jul 2025241 AMAQI
9th Jul 2025222 AMAQI
9th Jul 2025233 AMAQI
9th Jul 2025214 AMAQI
13°C11/16°C
9th Jul 2025215 AMAQI
9th Jul 2025236 AMAQI
9th Jul 2025237 AMAQI
9th Jul 2025238 AMAQI
9th Jul 2025249 AMAQI
9th Jul 20252410 AMAQI
9th Jul 20252611 AMAQI
9th Jul 20252512 PMAQI
9th Jul 2025241 PMAQI
9th Jul 2025212 PMAQI
9th Jul 2025213 PMAQI
9th Jul 2025224 PMAQI
9th Jul 2025225 PMAQI
9th Jul 2025226 PMAQI
9th Jul 2025227 PMAQI
9th Jul 2025218 PMAQI
9th Jul 2025229 PMAQI
9th Jul 20252210 PMAQI
9th Jul 20252211 PMAQI
10th Jul 20252212 AMAQI
10th Jul 2025231 AMAQI
10th Jul 2025242 AMAQI
10th Jul 2025203 AMAQI
10th Jul 2025214 AMAQI
16°C11/22°C
10th Jul 2025245 AMAQI
10th Jul 2025226 AMAQI
10th Jul 2025237 AMAQI
10th Jul 2025228 AMAQI
10th Jul 2025229 AMAQI
10th Jul 20252110 AMAQI
10th Jul 20252111 AMAQI
10th Jul 20252012 PMAQI
10th Jul 2025221 PMAQI
10th Jul 2025222 PMAQI
10th Jul 2025223 PMAQI
10th Jul 2025214 PMAQI
10th Jul 2025215 PMAQI
10th Jul 2025226 PMAQI
10th Jul 2025237 PMAQI
10th Jul 2025228 PMAQI
10th Jul 2025229 PMAQI
10th Jul 20252210 PMAQI
10th Jul 20252211 PMAQI
11th Jul 20252212 AMAQI
11th Jul 2025231 AMAQI
11th Jul 2025232 AMAQI
11th Jul 2025223 AMAQI
11th Jul 2025224 AMAQI
15°C10/21°C
11th Jul 2025225 AMAQI
11th Jul 2025226 AMAQI
11th Jul 2025237 AMAQI
11th Jul 2025238 AMAQI
11th Jul 2025239 AMAQI
11th Jul 20252310 AMAQI
11th Jul 20252211 AMAQI
11th Jul 20252312 PMAQI
11th Jul 2025221 PMAQI
11th Jul 2025222 PMAQI
11th Jul 2025223 PMAQI
11th Jul 2025224 PMAQI
11th Jul 2025225 PMAQI
11th Jul 2025226 PMAQI
11th Jul 2025207 PMAQI
11th Jul 2025208 PMAQI
11th Jul 2025229 PMAQI
11th Jul 20252210 PMAQI
11th Jul 20252211 PMAQI
12th Jul 20252212 AMAQI
12th Jul 2025221 AMAQI
12th Jul 2025222 AMAQI
12th Jul 2025233 AMAQI
12th Jul 2025224 AMAQI
16°C12/22°C
12th Jul 2025225 AMAQI
12th Jul 2025226 AMAQI
12th Jul 2025217 AMAQI
12th Jul 2025238 AMAQI
12th Jul 2025249 AMAQI
12th Jul 20252310 AMAQI
12th Jul 20252511 AMAQI
12th Jul 20252212 PMAQI
12th Jul 2025221 PMAQI
12th Jul 2025222 PMAQI
12th Jul 2025223 PMAQI
12th Jul 2025224 PMAQI
12th Jul 2025225 PMAQI
12th Jul 2025216 PMAQI
12th Jul 2025217 PMAQI
12th Jul 2025218 PMAQI
12th Jul 2025229 PMAQI
12th Jul 20252210 PMAQI
12th Jul 20252311 PMAQI
13th Jul 20252312 AMAQI
13th Jul 2025231 AMAQI
13th Jul 2025232 AMAQI
13th Jul 2025223 AMAQI
13th Jul 2025224 AMAQI
18°C12/24°C
13th Jul 2025235 AMAQI
13th Jul 2025246 AMAQI
13th Jul 2025247 AMAQI
13th Jul 2025228 AMAQI
13th Jul 2025269 AMAQI
13th Jul 20252410 AMAQI
13th Jul 20252411 AMAQI
13th Jul 20252412 PMAQI
13th Jul 2025221 PMAQI
13th Jul 2025232 PMAQI
13th Jul 2025233 PMAQI
13th Jul 2025224 PMAQI
13th Jul 2025235 PMAQI
13th Jul 2025236 PMAQI
13th Jul 2025227 PMAQI
13th Jul 2025238 PMAQI
13th Jul 2025239 PMAQI
13th Jul 20252310 PMAQI
13th Jul 20252311 PMAQI
14th Jul 20252312 AMAQI
14th Jul 2025231 AMAQI
14th Jul 2025222 AMAQI
14th Jul 2025233 AMAQI
14th Jul 2025234 AMAQI
21°C13/28°C
14th Jul 2025245 AMAQI
14th Jul 2025226 AMAQI
14th Jul 2025237 AMAQI
14th Jul 2025258 AMAQI
14th Jul 2025239 AMAQI
14th Jul 20252410 AMAQI
14th Jul 20252311 AMAQI
14th Jul 20252312 PMAQI
14th Jul 2025231 PMAQI
14th Jul 2025222 PMAQI
14th Jul 2025223 PMAQI
14th Jul 2025224 PMAQI
14th Jul 2025225 PMAQI
14th Jul 2025226 PMAQI
14th Jul 2025227 PMAQI
14th Jul 2025218 PMAQI
14th Jul 2025239 PMAQI
14th Jul 20252310 PMAQI
14th Jul 20252311 PMAQI
15th Jul 20252212 AMAQI
15th Jul 2025231 AMAQI
15th Jul 2025232 AMAQI
15th Jul 2025243 AMAQI
15th Jul 2025234 AMAQI
20°C15/28°C
15th Jul 2025235 AMAQI
15th Jul 2025226 AMAQI
15th Jul 2025237 AMAQI
15th Jul 2025248 AMAQI
15th Jul 2025249 AMAQI
15th Jul 20252410 AMAQI
15th Jul 20252311 AMAQI
15th Jul 20252412 PMAQI
15th Jul 2025221 PMAQI
15th Jul 2025212 PMAQI
15th Jul 2025223 PMAQI
15th Jul 2025234 PMAQI
15th Jul 2025225 PMAQI
15th Jul 2025226 PMAQI
15th Jul 2025227 PMAQI
15th Jul 2025228 PMAQI
15th Jul 2025229 PMAQI
15th Jul 20252310 PMAQI
15th Jul 20252311 PMAQI
16th Jul 20252312 AMAQI
16th Jul 2025231 AMAQI
16th Jul 2025242 AMAQI
16th Jul 2025243 AMAQI
16th Jul 2025244 AMAQI
20°C13/28°C
16th Jul 2025245 AMAQI
16th Jul 2025246 AMAQI
16th Jul 2025247 AMAQI
16th Jul 2025248 AMAQI
16th Jul 2025259 AMAQI
16th Jul 20252610 AMAQI
16th Jul 20252511 AMAQI
16th Jul 20252412 PMAQI
16th Jul 2025241 PMAQI
16th Jul 2025232 PMAQI
16th Jul 2025243 PMAQI
16th Jul 2025234 PMAQI
16th Jul 2025235 PMAQI
16th Jul 2025236 PMAQI
16th Jul 2025277 PMAQI
16th Jul 2025238 PMAQI
16th Jul 2025249 PMAQI
16th Jul 20252410 PMAQI
16th Jul 20252411 PMAQI
17th Jul 20252312 AMAQI
17th Jul 2025241 AMAQI
17th Jul 2025232 AMAQI
17th Jul 2025223 AMAQI
17th Jul 2025204 AMAQI
16°C12/19°C
17th Jul 2025205 AMAQI
17th Jul 2025216 AMAQI
17th Jul 2025227 AMAQI
17th Jul 2025218 AMAQI
17th Jul 2025229 AMAQI
17th Jul 20252310 AMAQI
17th Jul 20252211 AMAQI
17th Jul 20252212 PMAQI
17th Jul 2025211 PMAQI
17th Jul 2025212 PMAQI
17th Jul 2025223 PMAQI
17th Jul 2025214 PMAQI
17th Jul 2025225 PMAQI
17th Jul 2025206 PMAQI
17th Jul 2025217 PMAQI
17th Jul 2025218 PMAQI
17th Jul 2025229 PMAQI
17th Jul 20252210 PMAQI
17th Jul 20252211 PMAQI
18th Jul 20252112 AMAQI
18th Jul 2025221 AMAQI
18th Jul 2025222 AMAQI
18th Jul 2025213 AMAQI
18th Jul 2025214 AMAQI
17°C12/23°C
18th Jul 2025215 AMAQI
18th Jul 2025216 AMAQI
18th Jul 2025227 AMAQI
18th Jul 2025238 AMAQI
18th Jul 2025239 AMAQI
18th Jul 20252310 AMAQI
18th Jul 20252311 AMAQI
18th Jul 20252212 PMAQI
18th Jul 2025221 PMAQI
18th Jul 2025222 PMAQI
18th Jul 2025213 PMAQI
18th Jul 2025214 PMAQI
18th Jul 2025215 PMAQI
18th Jul 2025216 PMAQI
18th Jul 2025227 PMAQI
18th Jul 2025228 PMAQI
18th Jul 2025229 PMAQI
18th Jul 20252110 PMAQI
18th Jul 20252211 PMAQI
19th Jul 20252212 AMAQI
19th Jul 2025221 AMAQI
19th Jul 2025222 AMAQI
19th Jul 2025233 AMAQI
19th Jul 2025224 AMAQI
18°C11/26°C
19th Jul 2025225 AMAQI
19th Jul 2025236 AMAQI
19th Jul 2025237 AMAQI
19th Jul 2025238 AMAQI
19th Jul 2025249 AMAQI
19th Jul 20252410 AMAQI
19th Jul 20252311 AMAQI
19th Jul 20252312 PMAQI
19th Jul 2025221 PMAQI
19th Jul 2025212 PMAQI
19th Jul 2025223 PMAQI
19th Jul 2025214 PMAQI
19th Jul 2025225 PMAQI
19th Jul 2025226 PMAQI
19th Jul 2025227 PMAQI
19th Jul 2025228 PMAQI
19th Jul 2025229 PMAQI
19th Jul 20252310 PMAQI
19th Jul 20252311 PMAQI
20th Jul 20252412 AMAQI
20th Jul 2025221 AMAQI
20th Jul 2025242 AMAQI
20th Jul 2025243 AMAQI
20th Jul 2025244 AMAQI
20°C12/28°C
20th Jul 2025265 AMAQI
20th Jul 2025266 AMAQI
20th Jul 2025247 AMAQI
20th Jul 2025268 AMAQI
20th Jul 2025269 AMAQI
20th Jul 20252510 AMAQI
20th Jul 20252411 AMAQI
20th Jul 20252412 PMAQI
20th Jul 2025241 PMAQI
20th Jul 2025242 PMAQI
20th Jul 2025243 PMAQI
20th Jul 2025244 PMAQI
20th Jul 2025245 PMAQI
20th Jul 2025246 PMAQI
20th Jul 2025247 PMAQI
20th Jul 2025258 PMAQI
20th Jul 2025269 PMAQI
20th Jul 20252610 PMAQI
20th Jul 20252611 PMAQI
21st Jul 20252612 AMAQI
21st Jul 2025261 AMAQI
21st Jul 2025272 AMAQI
21st Jul 2025273 AMAQI
21st Jul 2025294 AMAQI
22°C15/30°C
21st Jul 2025285 AMAQI
21st Jul 2025306 AMAQI
21st Jul 2025287 AMAQI
21st Jul 2025298 AMAQI
21st Jul 2025299 AMAQI
21st Jul 20252710 AMAQI
21st Jul 20252711 AMAQI
21st Jul 20252712 PMAQI
21st Jul 2025271 PMAQI
21st Jul 2025282 PMAQI
21st Jul 2025283 PMAQI
21st Jul 2025274 PMAQI
21st Jul 2025275 PMAQI
21st Jul 2025276 PMAQI
21st Jul 2025277 PMAQI
21st Jul 2025288 PMAQI
21st Jul 2025289 PMAQI
21st Jul 20252810 PMAQI
21st Jul 20252911 PMAQI
22nd Jul 20252812 AMAQI
22nd Jul 2025301 AMAQI
22nd Jul 2025242 AMAQI
22nd Jul 2025243 AMAQI
22nd Jul 2025234 AMAQI
23°C14/32°C
22nd Jul 2025225 AMAQI
22nd Jul 2025256 AMAQI
22nd Jul 2025257 AMAQI
22nd Jul 2025248 AMAQI
22nd Jul 2025269 AMAQI
22nd Jul 20252410 AMAQI
22nd Jul 20252411 AMAQI
22nd Jul 20252412 PMAQI
22nd Jul 2025231 PMAQI
22nd Jul 2025222 PMAQI
22nd Jul 2025223 PMAQI
22nd Jul 2025224 PMAQI
22nd Jul 2025225 PMAQI
22nd Jul 2025236 PMAQI
22nd Jul 2025227 PMAQI
22nd Jul 2025228 PMAQI
22nd Jul 2025239 PMAQI
22nd Jul 20252410 PMAQI
22nd Jul 20252411 PMAQI
23rd Jul 20252412 AMAQI
23rd Jul 2025241 AMAQI
23rd Jul 2025232 AMAQI
23rd Jul 2025233 AMAQI
23rd Jul 2025224 AMAQI
20°C13/26°C
23rd Jul 2025235 AMAQI
23rd Jul 2025236 AMAQI
23rd Jul 2025227 AMAQI
23rd Jul 2025248 AMAQI
23rd Jul 2025239 AMAQI
23rd Jul 20252310 AMAQI
23rd Jul 20252311 AMAQI
23rd Jul 20252312 PMAQI
23rd Jul 2025221 PMAQI
23rd Jul 2025222 PMAQI
23rd Jul 2025213 PMAQI
23rd Jul 2025204 PMAQI
23rd Jul 2025225 PMAQI
23rd Jul 2025226 PMAQI
23rd Jul 2025227 PMAQI
23rd Jul 2025228 PMAQI
23rd Jul 2025229 PMAQI
23rd Jul 20252210 PMAQI
23rd Jul 20252211 PMAQI
24th Jul 20252212 AMAQI
24th Jul 2025221 AMAQI
24th Jul 2025222 AMAQI
24th Jul 2025233 AMAQI
24th Jul 2025234 AMAQI
22°C16/28°C
24th Jul 2025245 AMAQI
24th Jul 2025236 AMAQI
24th Jul 2025247 AMAQI
24th Jul 2025238 AMAQI
24th Jul 2025249 AMAQI
24th Jul 20252410 AMAQI
24th Jul 20252411 AMAQI
24th Jul 20252412 PMAQI
24th Jul 2025241 PMAQI
24th Jul 2025242 PMAQI
24th Jul 2025223 PMAQI
24th Jul 2025234 PMAQI
24th Jul 2025235 PMAQI
24th Jul 2025236 PMAQI
24th Jul 2025237 PMAQI
24th Jul 2025228 PMAQI
24th Jul 2025249 PMAQI
24th Jul 20252410 PMAQI
24th Jul 20252311 PMAQI
25th Jul 20252312 AMAQI
25th Jul 2025231 AMAQI
25th Jul 2025232 AMAQI
25th Jul 2025253 AMAQI
25th Jul 2025254 AMAQI
23°C17/30°C
25th Jul 2025235 AMAQI
25th Jul 2025236 AMAQI
25th Jul 2025227 AMAQI
25th Jul 2025258 AMAQI
25th Jul 2025249 AMAQI
25th Jul 20252510 AMAQI
25th Jul 20252511 AMAQI
25th Jul 20252412 PMAQI
25th Jul 2025241 PMAQI
25th Jul 2025242 PMAQI
25th Jul 2025243 PMAQI
25th Jul 2025234 PMAQI
25th Jul 2025225 PMAQI
25th Jul 2025226 PMAQI
25th Jul 2025227 PMAQI
25th Jul 2025248 PMAQI
25th Jul 2025249 PMAQI
25th Jul 20252510 PMAQI
25th Jul 20252411 PMAQI
26th Jul 20252412 AMAQI
26th Jul 2025231 AMAQI
26th Jul 2025252 AMAQI
26th Jul 2025243 AMAQI
26th Jul 2025244 AMAQI
18°C14/23°C
26th Jul 2025255 AMAQI
26th Jul 2025256 AMAQI
26th Jul 2025247 AMAQI
26th Jul 2025238 AMAQI
26th Jul 2025229 AMAQI
26th Jul 20252410 AMAQI
26th Jul 20252311 AMAQI
26th Jul 20252312 PMAQI
26th Jul 2025221 PMAQI
26th Jul 2025722 PMAQI
26th Jul 2025223 PMAQI
26th Jul 2025224 PMAQI
26th Jul 2025225 PMAQI
26th Jul 2025226 PMAQI
26th Jul 2025237 PMAQI
26th Jul 2025228 PMAQI
26th Jul 2025269 PMAQI
26th Jul 20252810 PMAQI
26th Jul 20252811 PMAQI
27th Jul 20252812 AMAQI
27th Jul 2025281 AMAQI
27th Jul 2025262 AMAQI
27th Jul 2025253 AMAQI
27th Jul 2025264 AMAQI
18°C15/22°C
27th Jul 2025265 AMAQI
27th Jul 2025296 AMAQI
27th Jul 2025297 AMAQI
27th Jul 2025298 AMAQI
27th Jul 2025289 AMAQI
27th Jul 20252810 AMAQI
27th Jul 20252711 AMAQI
27th Jul 20252812 PMAQI
27th Jul 2025261 PMAQI
27th Jul 2025262 PMAQI
27th Jul 2025233 PMAQI
27th Jul 2025234 PMAQI
27th Jul 2025245 PMAQI
27th Jul 2025246 PMAQI
27th Jul 2025247 PMAQI
27th Jul 2025258 PMAQI
27th Jul 2025269 PMAQI
27th Jul 20252610 PMAQI
27th Jul 20252611 PMAQI
28th Jul 20252612 AMAQI
28th Jul 2025261 AMAQI
28th Jul 2025262 AMAQI
28th Jul 2025253 AMAQI
28th Jul 2025244 AMAQI
17°C14/21°C
28th Jul 2025245 AMAQI
28th Jul 2025246 AMAQI
28th Jul 2025257 AMAQI
28th Jul 2025268 AMAQI
28th Jul 2025269 AMAQI
28th Jul 20252510 AMAQI
28th Jul 20252411 AMAQI
28th Jul 20252412 PMAQI
28th Jul 2025251 PMAQI
28th Jul 2025232 PMAQI
28th Jul 2025223 PMAQI
28th Jul 2025234 PMAQI
28th Jul 2025245 PMAQI
28th Jul 2025246 PMAQI
28th Jul 2025237 PMAQI
28th Jul 2025238 PMAQI
28th Jul 2025249 PMAQI
28th Jul 20252410 PMAQI
28th Jul 20252411 PMAQI
29th Jul 20252612 AMAQI
29th Jul 2025251 AMAQI
29th Jul 2025232 AMAQI
29th Jul 2025223 AMAQI
29th Jul 2025234 AMAQI
18°C14/24°C
29th Jul 2025225 AMAQI
29th Jul 2025226 AMAQI
29th Jul 2025227 AMAQI
29th Jul 2025208 AMAQI
29th Jul 2025239 AMAQI
29th Jul 20252210 AMAQI
29th Jul 20252211 AMAQI
29th Jul 20252412 PMAQI
29th Jul 2025231 PMAQI
29th Jul 2025212 PMAQI
29th Jul 2025213 PMAQI
29th Jul 2025224 PMAQI
29th Jul 2025215 PMAQI
29th Jul 2025216 PMAQI
29th Jul 2025217 PMAQI
29th Jul 2025218 PMAQI
29th Jul 2025229 PMAQI
29th Jul 20252210 PMAQI
29th Jul 20252211 PMAQI
30th Jul 20252212 AMAQI
30th Jul 2025221 AMAQI
30th Jul 2025222 AMAQI
30th Jul 2025223 AMAQI
30th Jul 2025224 AMAQI
16°C11/21°C
30th Jul 2025215 AMAQI
30th Jul 2025206 AMAQI
30th Jul 2025227 AMAQI
30th Jul 2025228 AMAQI
30th Jul 2025249 AMAQI
30th Jul 20252310 AMAQI
30th Jul 20252311 AMAQI
30th Jul 20252212 PMAQI
30th Jul 2025221 PMAQI
30th Jul 2025212 PMAQI
30th Jul 2025213 PMAQI
30th Jul 2025214 PMAQI
30th Jul 2025225 PMAQI
30th Jul 2025226 PMAQI
30th Jul 2025217 PMAQI
30th Jul 2025228 PMAQI
30th Jul 2025239 PMAQI
30th Jul 20252310 PMAQI
30th Jul 20252311 PMAQI
31st Jul 20252312 AMAQI
31st Jul 2025231 AMAQI
31st Jul 2025232 AMAQI
31st Jul 2025233 AMAQI
31st Jul 2025234 AMAQI
17°C10/24°C
31st Jul 2025225 AMAQI
31st Jul 2025226 AMAQI
31st Jul 2025237 AMAQI
31st Jul 2025258 AMAQI
31st Jul 2025239 AMAQI
31st Jul 20252310 AMAQI
31st Jul 20252311 AMAQI
31st Jul 20252212 PMAQI
31st Jul 2025221 PMAQI
31st Jul 2025282 PMAQI
31st Jul 2025283 PMAQI
31st Jul 2025244 PMAQI
31st Jul 2025305 PMAQI
31st Jul 2025266 PMAQI
31st Jul 2025277 PMAQI
31st Jul 2025268 PMAQI
31st Jul 2025249 PMAQI
31st Jul 20252410 PMAQI
31st Jul 20252411 PMAQI
1st Aug 20252412 AMAQI
1st Aug 2025221 AMAQI
1st Aug 2025192 AMAQI
1st Aug 2025223 AMAQI
1st Aug 2025204 AMAQI
18°C11/25°C
1st Aug 2025235 AMAQI
1st Aug 2025286 AMAQI
1st Aug 2025247 AMAQI
1st Aug 2025248 AMAQI
1st Aug 2025249 AMAQI
1st Aug 20252910 AMAQI
1st Aug 20252411 AMAQI
1st Aug 20252212 PMAQI
1st Aug 2025221 PMAQI
1st Aug 2025232 PMAQI
1st Aug 2025243 PMAQI
1st Aug 2025234 PMAQI
1st Aug 2025245 PMAQI
1st Aug 2025246 PMAQI
1st Aug 2025247 PMAQI
1st Aug 2025248 PMAQI
1st Aug 2025239 PMAQI
1st Aug 20252310 PMAQI
1st Aug 20252311 PMAQI
2nd Aug 20252312 AMAQI
2nd Aug 2025231 AMAQI
2nd Aug 2025222 AMAQI
2nd Aug 2025253 AMAQI
2nd Aug 2025504 AMAQI
17°C12/24°C
2nd Aug 2025265 AMAQI
5 AM2nd Aug 2025486 AMAQI
2nd Aug 2025407 AMAQI
2nd Aug 2025288 AMAQI
2nd Aug 2025429 AMAQI
2nd Aug 20252910 AMAQI
2nd Aug 20252411 AMAQI
2nd Aug 20252212 PMAQI
12 PM2nd Aug 2025291 PMAQI
2nd Aug 2025322 PMAQI
2nd Aug 2025313 PMAQI
2nd Aug 2025364 PMAQI
2nd Aug 2025305 PMAQI
2nd Aug 2025306 PMAQI
2nd Aug 2025387 PMAQI
2nd Aug 2025268 PMAQI
8 PM2nd Aug 2025299 PMAQI
12 AM
4 AM
--°C/°C
Day time
Avg. Highest Time
5 AM - 8 PM
25AQI
16 hours / Day
480 hours / Month
Avg. Lowest Time
5 AM - 8 PM
25AQI
16 hours / Day
480 hours / Month
In the last 30 days, during the daytime, the highest AQI was between 5 AM to 8 PM (Avg. 25), while the lowest AQI was between 5 AM to 8 PM (Avg. 25).
Night time
Avg. Highest Time
12 AM - 11 PM
25AQI
8 hours / Day
240 hours / Month
Avg. Lowest Time
12 AM - 11 PM
25AQI
8 hours / Day
240 hours / Month
In the last 30 days, during the daytime, the highest AQI was between 12 AM to 11 PM (Avg. 25), while the lowest AQI was between 12 AM to 11 PM (Avg. 25).
2025 Days Vs Air Quality
Lustbahel Castle Observatory, Graz, Steiermark, Austria
2025
72%
153
28%
60
Total number of days with different AQI categories in last 214 days in 2025 (151 days remaining)
Good
153 DaysModerate
60 DaysPoor
0 DaysUnhealthy
0 DaysSevere
0 DaysHazardous
0 DaysUnder WHO’s Safe Air Quality Limits: 72%
Health Risk Level:
Low
In 2025, 72% of 214 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
Lustbahel Castle Observatory, Graz, Steiermark, Austria
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
78AQI
78AQI
2nd January 2025
72AQI
72AQI
3rd January 2025
65AQI
65AQI
4th January 2025
61AQI
61AQI
5th January 2025
62AQI
62AQI
6th January 2025
58AQI
58AQI
7th January 2025
55AQI
55AQI
8th January 2025
52AQI
52AQI
9th January 2025
50AQI
50AQI
10th January 2025
45AQI
45AQI
11th January 2025
43AQI
43AQI
12th January 2025
41AQI
41AQI
13th January 2025
42AQI
42AQI
14th January 2025
49AQI
49AQI
15th January 2025
55AQI
55AQI
16th January 2025
56AQI
56AQI
17th January 2025
58AQI
58AQI
18th January 2025
59AQI
59AQI
19th January 2025
62AQI
62AQI
20th January 2025
62AQI
62AQI
21st January 2025
64AQI
64AQI
22nd January 2025
64AQI
64AQI
23rd January 2025
62AQI
62AQI
24th January 2025
61AQI
61AQI
25th January 2025
60AQI
60AQI
26th January 2025
59AQI
59AQI
27th January 2025
55AQI
55AQI
28th January 2025
53AQI
53AQI
29th January 2025
49AQI
49AQI
30th January 2025
50AQI
50AQI
31st January 2025
49AQI
49AQI
1st February 2025
48AQI
48AQI
2nd February 2025
52AQI
52AQI
3rd February 2025
52AQI
52AQI
4th February 2025
54AQI
54AQI
5th February 2025
57AQI
57AQI
6th February 2025
57AQI
57AQI
7th February 2025
59AQI
59AQI
8th February 2025
68AQI
68AQI
9th February 2025
73AQI
73AQI
10th February 2025
78AQI
78AQI
11th February 2025
79AQI
79AQI
12th February 2025
79AQI
79AQI
13th February 2025
81AQI
81AQI
14th February 2025
73AQI
73AQI
15th February 2025
73AQI
73AQI
16th February 2025
68AQI
68AQI
17th February 2025
66AQI
66AQI
18th February 2025
67AQI
67AQI
19th February 2025
67AQI
67AQI
20th February 2025
69AQI
69AQI
21st February 2025
74AQI
74AQI
22nd February 2025
78AQI
78AQI
23rd February 2025
84AQI
84AQI
24th February 2025
81AQI
81AQI
25th February 2025
74AQI
74AQI
26th February 2025
70AQI
70AQI
27th February 2025
63AQI
63AQI
28th February 2025
58AQI
58AQI
1st March 2025
53AQI
53AQI
2nd March 2025
53AQI
53AQI
3rd March 2025
54AQI
54AQI
4th March 2025
54AQI
54AQI
5th March 2025
54AQI
54AQI
6th March 2025
54AQI
54AQI
7th March 2025
54AQI
54AQI
8th March 2025
55AQI
55AQI
9th March 2025
58AQI
58AQI
10th March 2025
57AQI
57AQI
11th March 2025
54AQI
54AQI
12th March 2025
50AQI
50AQI
13th March 2025
45AQI
45AQI
14th March 2025
42AQI
42AQI
15th March 2025
38AQI
38AQI
16th March 2025
37AQI
37AQI
17th March 2025
35AQI
35AQI
18th March 2025
35AQI
35AQI
19th March 2025
38AQI
38AQI
20th March 2025
43AQI
43AQI
21st March 2025
47AQI
47AQI
22nd March 2025
49AQI
49AQI
23rd March 2025
44AQI
44AQI
24th March 2025
41AQI
41AQI
25th March 2025
36AQI
36AQI
26th March 2025
38AQI
38AQI
27th March 2025
39AQI
39AQI
28th March 2025
42AQI
42AQI
29th March 2025
41AQI
41AQI
30th March 2025
37AQI
37AQI
31st March 2025
33AQI
33AQI
1st April 2025
33AQI
33AQI
2nd April 2025
36AQI
36AQI
3rd April 2025
38AQI
38AQI
4th April 2025
38AQI
38AQI
5th April 2025
37AQI
37AQI
6th April 2025
34AQI
34AQI
7th April 2025
29AQI
29AQI
8th April 2025
27AQI
27AQI
9th April 2025
29AQI
29AQI
10th April 2025
31AQI
31AQI
11th April 2025
33AQI
33AQI
12th April 2025
36AQI
36AQI
13th April 2025
38AQI
38AQI
14th April 2025
36AQI
36AQI
15th April 2025
34AQI
34AQI
16th April 2025
34AQI
34AQI
17th April 2025
36AQI
36AQI
18th April 2025
30AQI
30AQI
19th April 2025
28AQI
28AQI
20th April 2025
32AQI
32AQI
21st April 2025
36AQI
36AQI
22nd April 2025
36AQI
36AQI
23rd April 2025
34AQI
34AQI
24th April 2025
32AQI
32AQI
25th April 2025
25AQI
25AQI
26th April 2025
24AQI
24AQI
27th April 2025
25AQI
25AQI
28th April 2025
27AQI
27AQI
29th April 2025
29AQI
29AQI
30th April 2025
30AQI
30AQI
1st May 2025
31AQI
31AQI
2nd May 2025
32AQI
32AQI
3rd May 2025
36AQI
36AQI
4th May 2025
32AQI
32AQI
5th May 2025
29AQI
29AQI
6th May 2025
28AQI
28AQI
7th May 2025
29AQI
29AQI
8th May 2025
32AQI
32AQI
9th May 2025
33AQI
33AQI
10th May 2025
31AQI
31AQI
11th May 2025
29AQI
29AQI
12th May 2025
28AQI
28AQI
13th May 2025
28AQI
28AQI
14th May 2025
29AQI
29AQI
15th May 2025
30AQI
30AQI
16th May 2025
25AQI
25AQI
17th May 2025
23AQI
23AQI
18th May 2025
22AQI
22AQI
19th May 2025
22AQI
22AQI
20th May 2025
25AQI
25AQI
21st May 2025
28AQI
28AQI
22nd May 2025
29AQI
29AQI
23rd May 2025
26AQI
26AQI
24th May 2025
26AQI
26AQI
25th May 2025
25AQI
25AQI
26th May 2025
24AQI
24AQI
27th May 2025
23AQI
23AQI
28th May 2025
20AQI
20AQI
29th May 2025
18AQI
18AQI
30th May 2025
19AQI
19AQI
31st May 2025
21AQI
21AQI
1st June 2025
24AQI
24AQI
2nd June 2025
25AQI
25AQI
3rd June 2025
24AQI
24AQI
4th June 2025
25AQI
25AQI
5th June 2025
24AQI
24AQI
6th June 2025
24AQI
24AQI
7th June 2025
25AQI
25AQI
8th June 2025
24AQI
24AQI
9th June 2025
27AQI
27AQI
10th June 2025
34AQI
34AQI
11th June 2025
49AQI
49AQI
12th June 2025
48AQI
48AQI
13th June 2025
48AQI
48AQI
14th June 2025
44AQI
44AQI
15th June 2025
45AQI
45AQI
16th June 2025
41AQI
41AQI
17th June 2025
37AQI
37AQI
18th June 2025
37AQI
37AQI
19th June 2025
39AQI
39AQI
20th June 2025
38AQI
38AQI
21st June 2025
36AQI
36AQI
22nd June 2025
34AQI
34AQI
23rd June 2025
35AQI
35AQI
24th June 2025
33AQI
33AQI
25th June 2025
33AQI
33AQI
26th June 2025
34AQI
34AQI
27th June 2025
31AQI
31AQI
28th June 2025
29AQI
29AQI
29th June 2025
28AQI
28AQI
30th June 2025
29AQI
29AQI
1st July 2025
30AQI
30AQI
2nd July 2025
31AQI
31AQI
3rd July 2025
33AQI
33AQI
4th July 2025
35AQI
35AQI
5th July 2025
34AQI
34AQI
6th July 2025
34AQI
34AQI
7th July 2025
30AQI
30AQI
8th July 2025
24AQI
24AQI
9th July 2025
23AQI
23AQI
10th July 2025
22AQI
22AQI
11th July 2025
22AQI
22AQI
12th July 2025
22AQI
22AQI
13th July 2025
23AQI
23AQI
14th July 2025
23AQI
23AQI
15th July 2025
23AQI
23AQI
16th July 2025
24AQI
24AQI
17th July 2025
22AQI
22AQI
18th July 2025
22AQI
22AQI
19th July 2025
22AQI
22AQI
20th July 2025
25AQI
25AQI
21st July 2025
28AQI
28AQI
22nd July 2025
24AQI
24AQI
23rd July 2025
22AQI
22AQI
24th July 2025
23AQI
23AQI
25th July 2025
24AQI
24AQI
26th July 2025
26AQI
26AQI
27th July 2025
26AQI
26AQI
28th July 2025
24AQI
24AQI
29th July 2025
22AQI
22AQI
30th July 2025
22AQI
22AQI
31st July 2025
24AQI
24AQI
1st August 2025
23AQI
23AQI
56AQI
68AQI
45AQI
32AQI
27AQI
33AQI
25AQI
23AQI
No. of days
Jan.Feb.Mar.Apr.MayJun.Jul.Aug.Sep.Oct.Nov.Dec.Total Days
202541AQI
9
22
1
27
20
11
30
31
30
31
1
153
60
Highest AQI recorded in
February68AQI
Lowest AQI recorded in
August23AQI
202425AQI
31
29
29
2
24
1
31
30
28
3
31
30
27
4
9
21
10
21
309
52
Highest AQI recorded in
November56AQI
Lowest AQI recorded in
June14AQI
202313AQI
30
28
31
27
31
30
31
31
30
31
28
31
359
Highest AQI recorded in
December18AQI
Lowest AQI recorded in
April10AQI
202216AQI
31
21
31
30
31
30
23
2
29
31
30
31
320
Highest AQI recorded in
March25AQI
Lowest AQI recorded in
September11AQI
202116AQI
30
27
1
31
30
31
30
31
31
30
31
30
31
363
1
Highest AQI recorded in
February24AQI
Lowest AQI recorded in
May8AQI
202013AQI
11
2
19
17
30
31
31
30
30
30
31
260
2
Highest AQI recorded in
March24AQI
Lowest AQI recorded in
June8AQI
Most & Least Polluted Years Over the Last 6 Years
Most Polluted Year Recorded
2025(Avg.)
41AQILeast Polluted Year Recorded
2023(Avg.)
13AQILustbahel Castle Observatory's annual 2025 AQI (41) shows an average percentage change of 162.3% (worsened AQI) compared to previous years: 2020 (13), 2021 (16), 2022 (16), 2023 (13), 2024 (25).
