Chur, Graubunden, Switzerland 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
Chur, Graubunden, Switzerland
2022
2023
2024
2025
2026
AQI
.
Days
AQI Trends: Highest and Lowest
Highest AQI recorded on
13th Aug 2025
60AQILowest AQI recorded on
31st Aug 2023
15AQISame Day Analysis (2nd August):
On this day, AQI across the 5 years varied significantly: 2026 ranks 1st highest AQI at 42 of Good air quality on the same day.
Day & Night AQI Trend: 1st Aug - 2nd Aug 2026
Chur, Graubunden, Switzerland
AQI
Day
Night
.
5 AM1st Aug 2026
9 PM
4 AM2nd Aug 2026
Day time
Avg. Highest Time
3PM1st Aug
53AQI
Avg. Lowest Time
7AM1st Aug
40AQI
Night time
Avg. Highest Time
2AM2nd Aug
44AQI
Avg. Lowest Time
9PM1st Aug
33AQI
In the last 24 hours,
Chur's AQI reached its highest point of 53 at 3 PM during the Day, while the lowest point, 33, was recorded at 9 PM during the Night between 1st Aug and 2nd Aug 2026.
Day & Night AQI Trend : Jul - Aug 2026
Chur, Graubunden, Switzerland
JulAug
04th - 05th05th - 06th06th - 07th07th - 08th08th - 09th09th - 10th10th - 11th11th - 12th12th - 13th13th - 14th14th - 15th15th - 16th16th - 17th17th - 18th18th - 19th19th - 20th20th - 21st21st - 22nd22nd - 23rd23rd - 24th24th - 25th25th - 26th26th - 27th27th - 28th28th - 29th29th - 30th30th - 31st31st - 01st01st - 02nd02nd
Day
Night
4th Jul 2026175 AMAQI
4th Jul 2026176 AMAQI
4th Jul 2026207 AMAQI
4th Jul 2026248 AMAQI
4th Jul 2026109 AMAQI
4th Jul 20261610 AMAQI
4th Jul 20261811 AMAQI
4th Jul 20261712 PMAQI
4th Jul 2026221 PMAQI
4th Jul 2026122 PMAQI
4th Jul 2026143 PMAQI
4th Jul 2026224 PMAQI
4th Jul 2026185 PMAQI
4th Jul 2026176 PMAQI
4th Jul 2026187 PMAQI
4th Jul 2026228 PMAQI
4th Jul 2026199 PMAQI
4th Jul 20261910 PMAQI
4th Jul 20262111 PMAQI
5th Jul 20262212 AMAQI
5th Jul 2026221 AMAQI
5th Jul 2026192 AMAQI
5th Jul 202683 AMAQI
5th Jul 2026144 AMAQI
13°C7/20°C
5th Jul 2026125 AMAQI
5th Jul 2026126 AMAQI
5th Jul 2026127 AMAQI
5th Jul 2026218 AMAQI
5th Jul 2026129 AMAQI
5th Jul 20261710 AMAQI
5th Jul 20261811 AMAQI
5th Jul 20261712 PMAQI
5th Jul 2026201 PMAQI
5th Jul 2026222 PMAQI
5th Jul 2026213 PMAQI
5th Jul 2026214 PMAQI
5th Jul 2026175 PMAQI
5th Jul 2026206 PMAQI
5th Jul 2026177 PMAQI
5th Jul 2026208 PMAQI
5th Jul 2026149 PMAQI
5th Jul 20261410 PMAQI
5th Jul 20261811 PMAQI
6th Jul 20262012 AMAQI
6th Jul 2026211 AMAQI
6th Jul 2026182 AMAQI
6th Jul 2026203 AMAQI
6th Jul 2026164 AMAQI
14°C8/21°C
6th Jul 2026105 AMAQI
6th Jul 2026126 AMAQI
6th Jul 2026187 AMAQI
6th Jul 2026158 AMAQI
6th Jul 2026109 AMAQI
6th Jul 20261210 AMAQI
6th Jul 20261211 AMAQI
6th Jul 20261412 PMAQI
6th Jul 2026211 PMAQI
6th Jul 2026202 PMAQI
6th Jul 2026203 PMAQI
6th Jul 2026264 PMAQI
6th Jul 2026175 PMAQI
6th Jul 2026266 PMAQI
6th Jul 2026257 PMAQI
6th Jul 2026288 PMAQI
6th Jul 2026179 PMAQI
6th Jul 20261810 PMAQI
6th Jul 20262011 PMAQI
7th Jul 20262612 AMAQI
7th Jul 2026261 AMAQI
7th Jul 2026222 AMAQI
7th Jul 202673 AMAQI
7th Jul 2026104 AMAQI
14°C9/20°C
7th Jul 2026125 AMAQI
7th Jul 2026126 AMAQI
7th Jul 2026127 AMAQI
7th Jul 2026198 AMAQI
7th Jul 2026179 AMAQI
7th Jul 20261710 AMAQI
7th Jul 20261611 AMAQI
7th Jul 20262112 PMAQI
7th Jul 2026221 PMAQI
7th Jul 2026182 PMAQI
7th Jul 2026123 PMAQI
7th Jul 2026144 PMAQI
7th Jul 2026185 PMAQI
7th Jul 2026206 PMAQI
7th Jul 2026147 PMAQI
7th Jul 2026128 PMAQI
7th Jul 2026189 PMAQI
7th Jul 20262410 PMAQI
7th Jul 20262611 PMAQI
8th Jul 20262512 AMAQI
8th Jul 2026261 AMAQI
8th Jul 2026262 AMAQI
8th Jul 2026183 AMAQI
8th Jul 2026124 AMAQI
16°C10/23°C
8th Jul 2026115 AMAQI
8th Jul 2026126 AMAQI
8th Jul 2026127 AMAQI
8th Jul 2026168 AMAQI
8th Jul 2026239 AMAQI
8th Jul 20262210 AMAQI
8th Jul 20262311 AMAQI
8th Jul 20262012 PMAQI
8th Jul 2026211 PMAQI
8th Jul 2026222 PMAQI
8th Jul 2026263 PMAQI
8th Jul 2026304 PMAQI
8th Jul 2026175 PMAQI
8th Jul 2026206 PMAQI
8th Jul 2026377 PMAQI
8th Jul 2026598 PMAQI
8th Jul 2026389 PMAQI
8th Jul 20261610 PMAQI
8th Jul 20261811 PMAQI
9th Jul 20261712 AMAQI
9th Jul 2026231 AMAQI
9th Jul 2026242 AMAQI
9th Jul 2026193 AMAQI
9th Jul 2026334 AMAQI
15°C11/21°C
9th Jul 2026175 AMAQI
9th Jul 2026176 AMAQI
9th Jul 2026257 AMAQI
9th Jul 2026248 AMAQI
9th Jul 2026229 AMAQI
9th Jul 20262310 AMAQI
9th Jul 20262211 AMAQI
9th Jul 20262012 PMAQI
9th Jul 2026381 PMAQI
9th Jul 2026182 PMAQI
9th Jul 2026183 PMAQI
9th Jul 2026184 PMAQI
9th Jul 2026205 PMAQI
9th Jul 2026206 PMAQI
9th Jul 2026127 PMAQI
9th Jul 2026148 PMAQI
9th Jul 2026189 PMAQI
9th Jul 20261810 PMAQI
9th Jul 20261811 PMAQI
10th Jul 20261812 AMAQI
10th Jul 2026231 AMAQI
10th Jul 2026232 AMAQI
10th Jul 2026163 AMAQI
10th Jul 2026224 AMAQI
16°C10/23°C
10th Jul 2026215 AMAQI
10th Jul 2026216 AMAQI
10th Jul 2026197 AMAQI
10th Jul 2026248 AMAQI
10th Jul 2026249 AMAQI
10th Jul 20261610 AMAQI
10th Jul 20261811 AMAQI
10th Jul 20262112 PMAQI
10th Jul 2026141 PMAQI
10th Jul 2026142 PMAQI
10th Jul 2026213 PMAQI
10th Jul 2026154 PMAQI
10th Jul 2026165 PMAQI
10th Jul 2026166 PMAQI
10th Jul 2026117 PMAQI
10th Jul 2026128 PMAQI
10th Jul 2026199 PMAQI
10th Jul 20261210 PMAQI
10th Jul 2026811 PMAQI
11th Jul 2026812 AMAQI
11th Jul 2026201 AMAQI
11th Jul 2026322 AMAQI
11th Jul 2026323 AMAQI
11th Jul 2026194 AMAQI
18°C11/25°C
11th Jul 2026205 AMAQI
11th Jul 2026186 AMAQI
11th Jul 2026227 AMAQI
11th Jul 2026168 AMAQI
11th Jul 2026189 AMAQI
11th Jul 20262910 AMAQI
11th Jul 20262611 AMAQI
11th Jul 20262912 PMAQI
11th Jul 2026261 PMAQI
11th Jul 2026292 PMAQI
11th Jul 2026313 PMAQI
11th Jul 2026294 PMAQI
11th Jul 2026285 PMAQI
11th Jul 2026276 PMAQI
11th Jul 2026287 PMAQI
11th Jul 2026298 PMAQI
11th Jul 2026269 PMAQI
11th Jul 20262810 PMAQI
11th Jul 20262811 PMAQI
12th Jul 20262912 AMAQI
12th Jul 2026281 AMAQI
12th Jul 2026282 AMAQI
12th Jul 2026283 AMAQI
12th Jul 2026224 AMAQI
17°C11/24°C
12th Jul 2026205 AMAQI
12th Jul 2026206 AMAQI
12th Jul 2026227 AMAQI
12th Jul 2026208 AMAQI
12th Jul 2026209 AMAQI
12th Jul 20262210 AMAQI
12th Jul 20262211 AMAQI
12th Jul 20262112 PMAQI
12th Jul 2026251 PMAQI
12th Jul 2026282 PMAQI
12th Jul 2026283 PMAQI
12th Jul 2026244 PMAQI
12th Jul 2026245 PMAQI
12th Jul 2026276 PMAQI
12th Jul 2026227 PMAQI
12th Jul 2026248 PMAQI
12th Jul 2026229 PMAQI
12th Jul 20262310 PMAQI
12th Jul 20262311 PMAQI
13th Jul 20262112 AMAQI
13th Jul 2026221 AMAQI
13th Jul 2026242 AMAQI
13th Jul 2026273 AMAQI
13th Jul 2026204 AMAQI
17°C11/23°C
13th Jul 2026215 AMAQI
13th Jul 2026216 AMAQI
13th Jul 2026227 AMAQI
13th Jul 2026188 AMAQI
13th Jul 2026229 AMAQI
13th Jul 20262410 AMAQI
13th Jul 20261911 AMAQI
13th Jul 20262112 PMAQI
13th Jul 2026171 PMAQI
13th Jul 2026242 PMAQI
13th Jul 2026363 PMAQI
13th Jul 2026344 PMAQI
13th Jul 2026345 PMAQI
13th Jul 2026366 PMAQI
13th Jul 2026317 PMAQI
13th Jul 2026338 PMAQI
13th Jul 2026369 PMAQI
13th Jul 20263010 PMAQI
13th Jul 20263011 PMAQI
14th Jul 20262912 AMAQI
14th Jul 2026281 AMAQI
14th Jul 2026242 AMAQI
14th Jul 2026183 AMAQI
14th Jul 2026304 AMAQI
18°C12/26°C
14th Jul 2026285 AMAQI
14th Jul 2026266 AMAQI
14th Jul 2026247 AMAQI
14th Jul 2026268 AMAQI
14th Jul 2026269 AMAQI
14th Jul 20263010 AMAQI
14th Jul 20262611 AMAQI
14th Jul 20262412 PMAQI
14th Jul 2026161 PMAQI
14th Jul 2026292 PMAQI
14th Jul 2026163 PMAQI
14th Jul 2026224 PMAQI
14th Jul 2026215 PMAQI
14th Jul 2026346 PMAQI
14th Jul 2026227 PMAQI
14th Jul 2026268 PMAQI
14th Jul 2026219 PMAQI
14th Jul 20262010 PMAQI
14th Jul 20262011 PMAQI
15th Jul 20262012 AMAQI
15th Jul 2026191 AMAQI
15th Jul 2026182 AMAQI
15th Jul 2026243 AMAQI
15th Jul 2026334 AMAQI
18°C13/25°C
15th Jul 2026315 AMAQI
15th Jul 2026336 AMAQI
15th Jul 2026267 AMAQI
15th Jul 2026208 AMAQI
15th Jul 2026189 AMAQI
15th Jul 20261410 AMAQI
15th Jul 20262011 AMAQI
15th Jul 20262012 PMAQI
15th Jul 2026251 PMAQI
15th Jul 2026222 PMAQI
15th Jul 2026183 PMAQI
15th Jul 2026244 PMAQI
15th Jul 2026205 PMAQI
15th Jul 2026326 PMAQI
15th Jul 2026207 PMAQI
15th Jul 2026128 PMAQI
15th Jul 2026169 PMAQI
15th Jul 20261210 PMAQI
15th Jul 20261611 PMAQI
16th Jul 20262112 AMAQI
16th Jul 2026241 AMAQI
16th Jul 2026282 AMAQI
16th Jul 2026123 AMAQI
16th Jul 2026254 AMAQI
14°C11/20°C
16th Jul 2026245 AMAQI
16th Jul 2026226 AMAQI
16th Jul 2026157 AMAQI
16th Jul 2026128 AMAQI
16th Jul 2026129 AMAQI
16th Jul 2026810 AMAQI
16th Jul 2026611 AMAQI
16th Jul 2026712 PMAQI
16th Jul 2026121 PMAQI
16th Jul 2026122 PMAQI
16th Jul 2026103 PMAQI
16th Jul 2026144 PMAQI
16th Jul 2026105 PMAQI
16th Jul 2026106 PMAQI
16th Jul 2026107 PMAQI
16th Jul 2026108 PMAQI
16th Jul 2026159 PMAQI
16th Jul 20261810 PMAQI
16th Jul 20261711 PMAQI
17th Jul 20261712 AMAQI
17th Jul 2026201 AMAQI
17th Jul 2026262 AMAQI
17th Jul 2026203 AMAQI
17th Jul 2026124 AMAQI
17°C10/25°C
17th Jul 2026175 AMAQI
17th Jul 2026126 AMAQI
17th Jul 2026117 AMAQI
17th Jul 202688 AMAQI
17th Jul 2026239 AMAQI
17th Jul 20262310 AMAQI
17th Jul 20263211 AMAQI
17th Jul 20262312 PMAQI
17th Jul 2026221 PMAQI
17th Jul 2026262 PMAQI
17th Jul 2026323 PMAQI
17th Jul 2026284 PMAQI
17th Jul 2026405 PMAQI
17th Jul 2026366 PMAQI
17th Jul 2026367 PMAQI
17th Jul 2026348 PMAQI
17th Jul 2026309 PMAQI
17th Jul 20263210 PMAQI
17th Jul 20263511 PMAQI
18th Jul 20264012 AMAQI
18th Jul 2026441 AMAQI
18th Jul 2026422 AMAQI
18th Jul 2026373 AMAQI
18th Jul 2026294 AMAQI
16°C11/22°C
18th Jul 2026235 AMAQI
18th Jul 2026226 AMAQI
18th Jul 2026307 AMAQI
18th Jul 2026388 AMAQI
18th Jul 2026369 AMAQI
18th Jul 20262710 AMAQI
18th Jul 20262711 AMAQI
18th Jul 20262912 PMAQI
18th Jul 2026401 PMAQI
18th Jul 2026452 PMAQI
18th Jul 2026443 PMAQI
18th Jul 2026404 PMAQI
18th Jul 2026365 PMAQI
18th Jul 2026326 PMAQI
18th Jul 2026347 PMAQI
18th Jul 2026288 PMAQI
18th Jul 2026329 PMAQI
18th Jul 20262610 PMAQI
18th Jul 20263611 PMAQI
19th Jul 20263012 AMAQI
19th Jul 2026301 AMAQI
19th Jul 2026242 AMAQI
19th Jul 2026253 AMAQI
19th Jul 2026244 AMAQI
14°C10/20°C
19th Jul 2026235 AMAQI
19th Jul 2026216 AMAQI
19th Jul 2026247 AMAQI
19th Jul 2026248 AMAQI
19th Jul 2026289 AMAQI
19th Jul 20262510 AMAQI
19th Jul 20262611 AMAQI
19th Jul 20262512 PMAQI
19th Jul 2026251 PMAQI
19th Jul 2026302 PMAQI
19th Jul 2026213 PMAQI
19th Jul 2026254 PMAQI
19th Jul 2026235 PMAQI
19th Jul 2026256 PMAQI
19th Jul 2026377 PMAQI
19th Jul 2026398 PMAQI
19th Jul 2026429 PMAQI
19th Jul 20264310 PMAQI
19th Jul 20264311 PMAQI
20th Jul 20264312 AMAQI
20th Jul 2026451 AMAQI
20th Jul 2026422 AMAQI
20th Jul 2026403 AMAQI
20th Jul 2026324 AMAQI
12°C8/17°C
20th Jul 2026235 AMAQI
20th Jul 2026246 AMAQI
20th Jul 2026247 AMAQI
20th Jul 2026258 AMAQI
20th Jul 2026279 AMAQI
20th Jul 20262610 AMAQI
20th Jul 20262511 AMAQI
20th Jul 20263012 PMAQI
20th Jul 2026241 PMAQI
20th Jul 2026242 PMAQI
20th Jul 2026243 PMAQI
20th Jul 2026254 PMAQI
20th Jul 2026265 PMAQI
20th Jul 2026276 PMAQI
20th Jul 2026277 PMAQI
20th Jul 2026418 PMAQI
20th Jul 2026419 PMAQI
20th Jul 20263410 PMAQI
20th Jul 20262311 PMAQI
21st Jul 20262412 AMAQI
21st Jul 2026241 AMAQI
21st Jul 2026302 AMAQI
21st Jul 2026303 AMAQI
21st Jul 2026354 AMAQI
13°C7/20°C
21st Jul 2026266 AMAQI
21st Jul 2026347 AMAQI
21st Jul 2026388 AMAQI
21st Jul 2026329 AMAQI
21st Jul 20263610 AMAQI
21st Jul 20263611 AMAQI
21st Jul 20264212 PMAQI
21st Jul 2026341 PMAQI
21st Jul 2026352 PMAQI
21st Jul 2026253 PMAQI
21st Jul 2026264 PMAQI
21st Jul 2026245 PMAQI
21st Jul 2026246 PMAQI
21st Jul 2026277 PMAQI
21st Jul 2026268 PMAQI
21st Jul 2026269 PMAQI
21st Jul 20262410 PMAQI
21st Jul 20262311 PMAQI
22nd Jul 20263012 AMAQI
22nd Jul 2026301 AMAQI
22nd Jul 2026342 AMAQI
22nd Jul 2026343 AMAQI
22nd Jul 2026324 AMAQI
12°C7/17°C
22nd Jul 2026265 AMAQI
22nd Jul 2026326 AMAQI
22nd Jul 2026397 AMAQI
22nd Jul 2026388 AMAQI
22nd Jul 2026499 AMAQI
22nd Jul 20262910 AMAQI
22nd Jul 20263611 AMAQI
22nd Jul 20262912 PMAQI
22nd Jul 2026261 PMAQI
22nd Jul 2026392 PMAQI
22nd Jul 2026393 PMAQI
22nd Jul 2026394 PMAQI
22nd Jul 2026325 PMAQI
22nd Jul 2026386 PMAQI
22nd Jul 2026367 PMAQI
22nd Jul 2026258 PMAQI
22nd Jul 2026239 PMAQI
22nd Jul 20262310 PMAQI
22nd Jul 20262511 PMAQI
23rd Jul 20262512 AMAQI
23rd Jul 2026291 AMAQI
23rd Jul 2026342 AMAQI
23rd Jul 2026363 AMAQI
23rd Jul 2026324 AMAQI
12°C5/19°C
23rd Jul 2026275 AMAQI
23rd Jul 2026306 AMAQI
23rd Jul 2026347 AMAQI
23rd Jul 2026458 AMAQI
23rd Jul 2026439 AMAQI
23rd Jul 20264110 AMAQI
23rd Jul 20262511 AMAQI
23rd Jul 20262512 PMAQI
23rd Jul 2026271 PMAQI
23rd Jul 2026272 PMAQI
23rd Jul 2026253 PMAQI
23rd Jul 2026254 PMAQI
23rd Jul 2026275 PMAQI
23rd Jul 2026296 PMAQI
23rd Jul 2026317 PMAQI
23rd Jul 2026318 PMAQI
23rd Jul 2026259 PMAQI
23rd Jul 20262410 PMAQI
23rd Jul 20262611 PMAQI
24th Jul 20263012 AMAQI
24th Jul 2026281 AMAQI
24th Jul 2026282 AMAQI
24th Jul 2026273 AMAQI
24th Jul 2026234 AMAQI
12°C6/18°C
24th Jul 2026215 AMAQI
24th Jul 2026216 AMAQI
24th Jul 2026237 AMAQI
24th Jul 2026258 AMAQI
24th Jul 2026289 AMAQI
24th Jul 20262110 AMAQI
24th Jul 20262111 AMAQI
24th Jul 20262312 PMAQI
24th Jul 2026251 PMAQI
24th Jul 2026252 PMAQI
24th Jul 2026253 PMAQI
24th Jul 2026374 PMAQI
24th Jul 2026255 PMAQI
24th Jul 2026236 PMAQI
24th Jul 2026247 PMAQI
24th Jul 2026258 PMAQI
24th Jul 2026279 PMAQI
24th Jul 20262610 PMAQI
24th Jul 20262311 PMAQI
25th Jul 20262812 AMAQI
25th Jul 2026291 AMAQI
25th Jul 2026292 AMAQI
25th Jul 2026303 AMAQI
25th Jul 2026294 AMAQI
13°C5/21°C
25th Jul 2026335 AMAQI
25th Jul 2026336 AMAQI
25th Jul 2026337 AMAQI
25th Jul 2026308 AMAQI
25th Jul 2026389 AMAQI
25th Jul 20264210 AMAQI
25th Jul 20263611 AMAQI
25th Jul 20262312 PMAQI
25th Jul 2026271 PMAQI
25th Jul 2026442 PMAQI
25th Jul 2026483 PMAQI
25th Jul 2026484 PMAQI
25th Jul 2026495 PMAQI
25th Jul 2026536 PMAQI
25th Jul 2026537 PMAQI
25th Jul 2026548 PMAQI
25th Jul 2026549 PMAQI
25th Jul 20265510 PMAQI
25th Jul 20265211 PMAQI
26th Jul 20265212 AMAQI
26th Jul 2026521 AMAQI
26th Jul 2026512 AMAQI
26th Jul 2026543 AMAQI
26th Jul 2026404 AMAQI
16°C9/24°C
26th Jul 2026225 AMAQI
26th Jul 2026216 AMAQI
26th Jul 2026247 AMAQI
26th Jul 2026298 AMAQI
26th Jul 2026259 AMAQI
26th Jul 20262410 AMAQI
26th Jul 20262411 AMAQI
26th Jul 20262512 PMAQI
26th Jul 2026331 PMAQI
26th Jul 2026252 PMAQI
26th Jul 2026343 PMAQI
26th Jul 2026324 PMAQI
26th Jul 2026275 PMAQI
26th Jul 2026336 PMAQI
26th Jul 2026337 PMAQI
26th Jul 2026388 PMAQI
26th Jul 2026279 PMAQI
26th Jul 20263010 PMAQI
26th Jul 20263611 PMAQI
27th Jul 20264512 AMAQI
27th Jul 2026531 AMAQI
27th Jul 2026562 AMAQI
27th Jul 2026563 AMAQI
27th Jul 2026384 AMAQI
13°C11/15°C
27th Jul 2026305 AMAQI
27th Jul 2026276 AMAQI
27th Jul 2026347 AMAQI
27th Jul 2026348 AMAQI
27th Jul 2026359 AMAQI
27th Jul 20263910 AMAQI
27th Jul 20263811 AMAQI
27th Jul 20263812 PMAQI
27th Jul 2026221 PMAQI
27th Jul 2026222 PMAQI
27th Jul 2026243 PMAQI
27th Jul 2026264 PMAQI
27th Jul 2026225 PMAQI
27th Jul 2026256 PMAQI
27th Jul 2026287 PMAQI
27th Jul 2026298 PMAQI
27th Jul 2026339 PMAQI
27th Jul 20262910 PMAQI
27th Jul 20262511 PMAQI
28th Jul 20262412 AMAQI
28th Jul 2026381 AMAQI
28th Jul 2026372 AMAQI
28th Jul 2026393 AMAQI
28th Jul 2026314 AMAQI
14°C8/20°C
28th Jul 2026225 AMAQI
28th Jul 2026216 AMAQI
28th Jul 2026277 AMAQI
28th Jul 2026248 AMAQI
28th Jul 2026329 AMAQI
28th Jul 20262710 AMAQI
28th Jul 20262611 AMAQI
28th Jul 20262712 PMAQI
28th Jul 2026321 PMAQI
28th Jul 2026412 PMAQI
28th Jul 2026423 PMAQI
28th Jul 2026404 PMAQI
28th Jul 2026315 PMAQI
28th Jul 2026326 PMAQI
28th Jul 2026377 PMAQI
28th Jul 2026458 PMAQI
28th Jul 2026459 PMAQI
28th Jul 20264210 PMAQI
28th Jul 20264411 PMAQI
29th Jul 20264312 AMAQI
29th Jul 2026481 AMAQI
29th Jul 2026502 AMAQI
29th Jul 2026443 AMAQI
29th Jul 2026394 AMAQI
17°C9/25°C
29th Jul 2026245 AMAQI
29th Jul 2026276 AMAQI
29th Jul 2026317 AMAQI
29th Jul 2026248 AMAQI
29th Jul 2026479 AMAQI
29th Jul 20264110 AMAQI
29th Jul 20264411 AMAQI
29th Jul 20264712 PMAQI
29th Jul 2026491 PMAQI
29th Jul 2026542 PMAQI
29th Jul 2026543 PMAQI
29th Jul 2026544 PMAQI
29th Jul 2026565 PMAQI
29th Jul 2026566 PMAQI
29th Jul 2026567 PMAQI
29th Jul 2026548 PMAQI
29th Jul 2026539 PMAQI
29th Jul 20265410 PMAQI
29th Jul 20265311 PMAQI
30th Jul 20265612 AMAQI
30th Jul 2026581 AMAQI
30th Jul 2026542 AMAQI
30th Jul 2026563 AMAQI
30th Jul 2026554 AMAQI
19°C13/25°C
30th Jul 2026335 AMAQI
30th Jul 2026336 AMAQI
30th Jul 2026417 AMAQI
30th Jul 2026548 AMAQI
30th Jul 2026549 AMAQI
30th Jul 20265410 AMAQI
30th Jul 20265611 AMAQI
30th Jul 20265412 PMAQI
30th Jul 2026581 PMAQI
30th Jul 2026592 PMAQI
30th Jul 2026603 PMAQI
30th Jul 2026584 PMAQI
30th Jul 2026565 PMAQI
30th Jul 2026576 PMAQI
30th Jul 2026607 PMAQI
30th Jul 2026668 PMAQI
30th Jul 2026689 PMAQI
30th Jul 20267610 PMAQI
30th Jul 20267411 PMAQI
31st Jul 20267012 AMAQI
31st Jul 2026721 AMAQI
31st Jul 2026702 AMAQI
31st Jul 2026693 AMAQI
31st Jul 2026624 AMAQI
20°C13/28°C
31st Jul 2026525 AMAQI
31st Jul 2026526 AMAQI
31st Jul 2026587 AMAQI
31st Jul 2026678 AMAQI
31st Jul 2026719 AMAQI
31st Jul 20266910 AMAQI
31st Jul 20266811 AMAQI
31st Jul 20267012 PMAQI
31st Jul 2026731 PMAQI
31st Jul 2026762 PMAQI
31st Jul 2026783 PMAQI
31st Jul 2026744 PMAQI
31st Jul 2026715 PMAQI
31st Jul 2026706 PMAQI
31st Jul 2026587 PMAQI
31st Jul 2026478 PMAQI
31st Jul 2026379 PMAQI
31st Jul 20263310 PMAQI
31st Jul 20262811 PMAQI
1st Aug 20262712 AMAQI
1st Aug 2026241 AMAQI
1st Aug 2026312 AMAQI
1st Aug 2026313 AMAQI
1st Aug 2026354 AMAQI
18°C13/28°C
1st Aug 2026435 AMAQI
1st Aug 2026446 AMAQI
1st Aug 2026407 AMAQI
1st Aug 2026508 AMAQI
1st Aug 2026509 AMAQI
1st Aug 20265110 AMAQI
1st Aug 20265011 AMAQI
1st Aug 20264812 PMAQI
1st Aug 2026461 PMAQI
1st Aug 2026482 PMAQI
1st Aug 2026533 PMAQI
1st Aug 2026534 PMAQI
1st Aug 2026455 PMAQI
1st Aug 2026506 PMAQI
1st Aug 2026487 PMAQI
1st Aug 2026438 PMAQI
1st Aug 2026339 PMAQI
1st Aug 20263710 PMAQI
1st Aug 20264011 PMAQI
2nd Aug 20264312 AMAQI
2nd Aug 2026431 AMAQI
2nd Aug 2026442 AMAQI
2nd Aug 2026443 AMAQI
2nd Aug 2026384 AMAQI
16°C12/24°C
2nd Aug 2026335 AMAQI
5 AM2nd Aug 2026326 AMAQI
2nd Aug 2026397 AMAQI
2nd Aug 2026438 AMAQI
2nd Aug 2026459 AMAQI
2nd Aug 20263910 AMAQI
2nd Aug 20264311 AMAQI
2nd Aug 20264012 PMAQI
2nd Aug 2026481 PMAQI
1 PM2nd Aug 2026462 PMAQI
2nd Aug 2026443 PMAQI
2nd Aug 2026404 PMAQI
2nd Aug 2026445 PMAQI
2nd Aug 2026446 PMAQI
2nd Aug 2026447 PMAQI
2nd Aug 2026438 PMAQI
2nd Aug 2026429 PMAQI
9 PM2nd Aug 20264110 PMAQI
2nd Aug 20264011 PMAQI
1 AM
4 AM
18°C12/24°C
Day time
Avg. Highest Time
4 PM
32AQI
1 hours / Day
30 hours / Month
Avg. Lowest Time
5 AM - 6 AM
24AQI
2 hours / Day
60 hours / Month
In the last 30 days, during the daytime, the highest AQI was between 4 PM to 4 PM (Avg. 32), while the lowest AQI was between 5 AM to 6 AM (Avg. 24).
Night time
Avg. Highest Time
2 AM
33AQI
1 hours / Day
30 hours / Month
Avg. Lowest Time
4 AM - 10 PM
29AQI
2 hours / Day
60 hours / Month
In the last 30 days, during the daytime, the highest AQI was between 2 AM to 2 AM (Avg. 33), while the lowest AQI was between 4 AM to 10 PM (Avg. 29).
2026 Days Vs Air Quality
Chur, Graubunden, Switzerland
2026
79%
167
20%
43
0.4%
1
Total number of days with different AQI categories in last 214 days in 2026 (151 days remaining)
Good
167 DaysModerate
43 DaysPoor
1 DaysUnhealthy
0 DaysSevere
0 DaysHazardous
0 DaysUnder WHO’s Safe Air Quality Limits: 79%
Health Risk Level:
Low
In 2026, 79% 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
Chur, Graubunden, Switzerland
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
101AQI (US)
101AQI (US)
2nd January 2026
62AQI (US)
62AQI (US)
3rd January 2026
28AQI (US)
28AQI (US)
4th January 2026
38AQI (US)
38AQI (US)
5th January 2026
63AQI (US)
63AQI (US)
6th January 2026
60AQI (US)
60AQI (US)
7th January 2026
67AQI (US)
67AQI (US)
8th January 2026
28AQI (US)
28AQI (US)
9th January 2026
20AQI (US)
20AQI (US)
10th January 2026
16AQI (US)
16AQI (US)
11th January 2026
45AQI (US)
45AQI (US)
12th January 2026
29AQI (US)
29AQI (US)
13th January 2026
42AQI (US)
42AQI (US)
14th January 2026
48AQI (US)
48AQI (US)
15th January 2026
53AQI (US)
53AQI (US)
16th January 2026
57AQI (US)
57AQI (US)
17th January 2026
72AQI (US)
72AQI (US)
18th January 2026
62AQI (US)
62AQI (US)
19th January 2026
61AQI (US)
61AQI (US)
20th January 2026
55AQI (US)
55AQI (US)
21st January 2026
54AQI (US)
54AQI (US)
22nd January 2026
63AQI (US)
63AQI (US)
23rd January 2026
70AQI (US)
70AQI (US)
24th January 2026
73AQI (US)
73AQI (US)
25th January 2026
58AQI (US)
58AQI (US)
26th January 2026
28AQI (US)
28AQI (US)
27th January 2026
26AQI (US)
26AQI (US)
28th January 2026
55AQI (US)
55AQI (US)
29th January 2026
36AQI (US)
36AQI (US)
30th January 2026
36AQI (US)
36AQI (US)
31st January 2026
46AQI (US)
46AQI (US)
1st February 2026
44AQI (US)
44AQI (US)
2nd February 2026
74AQI (US)
74AQI (US)
3rd February 2026
52AQI (US)
52AQI (US)
4th February 2026
40AQI (US)
40AQI (US)
5th February 2026
66AQI (US)
66AQI (US)
6th February 2026
62AQI (US)
62AQI (US)
7th February 2026
22AQI (US)
22AQI (US)
8th February 2026
31AQI (US)
31AQI (US)
9th February 2026
54AQI (US)
54AQI (US)
10th February 2026
62AQI (US)
62AQI (US)
11th February 2026
20AQI (US)
20AQI (US)
12th February 2026
13AQI (US)
13AQI (US)
13th February 2026
20AQI (US)
20AQI (US)
14th February 2026
30AQI (US)
30AQI (US)
15th February 2026
19AQI (US)
19AQI (US)
16th February 2026
32AQI (US)
32AQI (US)
17th February 2026
37AQI (US)
37AQI (US)
18th February 2026
36AQI (US)
36AQI (US)
19th February 2026
33AQI (US)
33AQI (US)
20th February 2026
28AQI (US)
28AQI (US)
21st February 2026
24AQI (US)
24AQI (US)
22nd February 2026
34AQI (US)
34AQI (US)
23rd February 2026
36AQI (US)
36AQI (US)
24th February 2026
26AQI (US)
26AQI (US)
25th February 2026
80AQI (US)
80AQI (US)
26th February 2026
66AQI (US)
66AQI (US)
27th February 2026
61AQI (US)
61AQI (US)
28th February 2026
67AQI (US)
67AQI (US)
1st March 2026
64AQI (US)
64AQI (US)
2nd March 2026
72AQI (US)
72AQI (US)
3rd March 2026
44AQI (US)
44AQI (US)
4th March 2026
62AQI (US)
62AQI (US)
5th March 2026
75AQI (US)
75AQI (US)
6th March 2026
82AQI (US)
82AQI (US)
7th March 2026
76AQI (US)
76AQI (US)
8th March 2026
80AQI (US)
80AQI (US)
9th March 2026
72AQI (US)
72AQI (US)
10th March 2026
58AQI (US)
58AQI (US)
11th March 2026
34AQI (US)
34AQI (US)
12th March 2026
28AQI (US)
28AQI (US)
13th March 2026
58AQI (US)
58AQI (US)
14th March 2026
37AQI (US)
37AQI (US)
15th March 2026
12AQI (US)
12AQI (US)
16th March 2026
21AQI (US)
21AQI (US)
17th March 2026
20AQI (US)
20AQI (US)
18th March 2026
26AQI (US)
26AQI (US)
19th March 2026
60AQI (US)
60AQI (US)
20th March 2026
56AQI (US)
56AQI (US)
21st March 2026
52AQI (US)
52AQI (US)
22nd March 2026
40AQI (US)
40AQI (US)
23rd March 2026
47AQI (US)
47AQI (US)
24th March 2026
46AQI (US)
46AQI (US)
25th March 2026
37AQI (US)
37AQI (US)
26th March 2026
10AQI (US)
10AQI (US)
27th March 2026
14AQI (US)
14AQI (US)
28th March 2026
31AQI (US)
31AQI (US)
29th March 2026
28AQI (US)
28AQI (US)
30th March 2026
24AQI (US)
24AQI (US)
31st March 2026
24AQI (US)
24AQI (US)
1st April 2026
29AQI (US)
29AQI (US)
2nd April 2026
33AQI (US)
33AQI (US)
3rd April 2026
27AQI (US)
27AQI (US)
4th April 2026
22AQI (US)
22AQI (US)
5th April 2026
34AQI (US)
34AQI (US)
6th April 2026
28AQI (US)
28AQI (US)
7th April 2026
25AQI (US)
25AQI (US)
8th April 2026
27AQI (US)
27AQI (US)
9th April 2026
22AQI (US)
22AQI (US)
10th April 2026
35AQI (US)
35AQI (US)
11th April 2026
38AQI (US)
38AQI (US)
12th April 2026
20AQI (US)
20AQI (US)
13th April 2026
14AQI (US)
14AQI (US)
14th April 2026
24AQI (US)
24AQI (US)
15th April 2026
34AQI (US)
34AQI (US)
16th April 2026
29AQI (US)
29AQI (US)
17th April 2026
18th April 2026
48AQI (US)
48AQI (US)
19th April 2026
31AQI (US)
31AQI (US)
20th April 2026
20AQI (US)
20AQI (US)
21st April 2026
18AQI (US)
18AQI (US)
22nd April 2026
23rd April 2026
22AQI (US)
22AQI (US)
24th April 2026
19AQI (US)
19AQI (US)
25th April 2026
18AQI (US)
18AQI (US)
26th April 2026
22AQI (US)
22AQI (US)
27th April 2026
26AQI (US)
26AQI (US)
28th April 2026
22AQI (US)
22AQI (US)
29th April 2026
20AQI (US)
20AQI (US)
30th April 2026
22AQI (US)
22AQI (US)
1st May 2026
24AQI (US)
24AQI (US)
2nd May 2026
22AQI (US)
22AQI (US)
3rd May 2026
20AQI (US)
20AQI (US)
4th May 2026
24AQI (US)
24AQI (US)
5th May 2026
27AQI (US)
27AQI (US)
6th May 2026
18AQI (US)
18AQI (US)
7th May 2026
12AQI (US)
12AQI (US)
8th May 2026
26AQI (US)
26AQI (US)
9th May 2026
10th May 2026
30AQI (US)
30AQI (US)
11th May 2026
26AQI (US)
26AQI (US)
12th May 2026
16AQI (US)
16AQI (US)
13th May 2026
20AQI (US)
20AQI (US)
14th May 2026
22AQI (US)
22AQI (US)
15th May 2026
26AQI (US)
26AQI (US)
16th May 2026
36AQI (US)
36AQI (US)
17th May 2026
40AQI (US)
40AQI (US)
18th May 2026
32AQI (US)
32AQI (US)
19th May 2026
34AQI (US)
34AQI (US)
20th May 2026
34AQI (US)
34AQI (US)
21st May 2026
34AQI (US)
34AQI (US)
22nd May 2026
36AQI (US)
36AQI (US)
23rd May 2026
38AQI (US)
38AQI (US)
24th May 2026
51AQI (US)
51AQI (US)
25th May 2026
46AQI (US)
46AQI (US)
26th May 2026
57AQI (US)
57AQI (US)
27th May 2026
42AQI (US)
42AQI (US)
28th May 2026
28AQI (US)
28AQI (US)
29th May 2026
24AQI (US)
24AQI (US)
30th May 2026
20AQI (US)
20AQI (US)
31st May 2026
42AQI (US)
42AQI (US)
1st June 2026
14AQI (US)
14AQI (US)
2nd June 2026
22AQI (US)
22AQI (US)
3rd June 2026
16AQI (US)
16AQI (US)
4th June 2026
12AQI (US)
12AQI (US)
5th June 2026
14AQI (US)
14AQI (US)
6th June 2026
18AQI (US)
18AQI (US)
7th June 2026
18AQI (US)
18AQI (US)
8th June 2026
20AQI (US)
20AQI (US)
9th June 2026
16AQI (US)
16AQI (US)
10th June 2026
12AQI (US)
12AQI (US)
11th June 2026
12AQI (US)
12AQI (US)
12th June 2026
16AQI (US)
16AQI (US)
13th June 2026
19AQI (US)
19AQI (US)
14th June 2026
18AQI (US)
18AQI (US)
15th June 2026
19AQI (US)
19AQI (US)
16th June 2026
27AQI (US)
27AQI (US)
17th June 2026
38AQI (US)
38AQI (US)
18th June 2026
32AQI (US)
32AQI (US)
19th June 2026
26AQI (US)
26AQI (US)
20th June 2026
16AQI (US)
16AQI (US)
21st June 2026
22AQI (US)
22AQI (US)
22nd June 2026
22AQI (US)
22AQI (US)
23rd June 2026
23AQI (US)
23AQI (US)
24th June 2026
25AQI (US)
25AQI (US)
25th June 2026
28AQI (US)
28AQI (US)
26th June 2026
32AQI (US)
32AQI (US)
27th June 2026
32AQI (US)
32AQI (US)
28th June 2026
25AQI (US)
25AQI (US)
29th June 2026
15AQI (US)
15AQI (US)
30th June 2026
14AQI (US)
14AQI (US)
1st July 2026
18AQI (US)
18AQI (US)
2nd July 2026
12AQI (US)
12AQI (US)
3rd July 2026
20AQI (US)
20AQI (US)
4th July 2026
18AQI (US)
18AQI (US)
5th July 2026
17AQI (US)
17AQI (US)
6th July 2026
18AQI (US)
18AQI (US)
7th July 2026
17AQI (US)
17AQI (US)
8th July 2026
23AQI (US)
23AQI (US)
9th July 2026
20AQI (US)
20AQI (US)
10th July 2026
18AQI (US)
18AQI (US)
11th July 2026
25AQI (US)
25AQI (US)
12th July 2026
24AQI (US)
24AQI (US)
13th July 2026
26AQI (US)
26AQI (US)
14th July 2026
24AQI (US)
24AQI (US)
15th July 2026
21AQI (US)
21AQI (US)
16th July 2026
15AQI (US)
15AQI (US)
17th July 2026
25AQI (US)
25AQI (US)
18th July 2026
34AQI (US)
34AQI (US)
19th July 2026
28AQI (US)
28AQI (US)
20th July 2026
30AQI (US)
30AQI (US)
21st July 2026
30AQI (US)
30AQI (US)
22nd July 2026
33AQI (US)
33AQI (US)
23rd July 2026
30AQI (US)
30AQI (US)
24th July 2026
26AQI (US)
26AQI (US)
25th July 2026
40AQI (US)
40AQI (US)
26th July 2026
32AQI (US)
32AQI (US)
27th July 2026
34AQI (US)
34AQI (US)
28th July 2026
34AQI (US)
34AQI (US)
29th July 2026
46AQI (US)
46AQI (US)
30th July 2026
56AQI (US)
56AQI (US)
31st July 2026
62AQI (US)
62AQI (US)
1st August 2026
42AQI (US)
42AQI (US)
2nd August 2026
42AQI (US)
42AQI (US)
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
50AQI (US)
42AQI (US)
45AQI (US)
26AQI (US)
30AQI (US)
21AQI (US)
28AQI (US)
42AQI (US)
No. of days
Jan.Feb.Mar.Apr.MayJun.Jul.Aug.Sep.Oct.Nov.Dec.Total Days
202635AQI (US)
14
16
1
18
10
18
13
28
28
2
30
29
2
2
167
43
1
Highest AQI (US) recorded in
January50AQI (US)
Lowest AQI (US) recorded in
June21AQI (US)
202542AQI (US)
14
17
5
23
28
3
30
31
22
8
31
24
7
28
1
1
12
19
8
22
4
27
237
126
1
1
Highest AQI (US) recorded in
December60AQI (US)
Lowest AQI (US) recorded in
April25AQI (US)
202426AQI (US)
31
29
30
1
30
31
30
31
31
30
31
30
24
7
358
8
Highest AQI (US) recorded in
December45AQI (US)
Lowest AQI (US) recorded in
October20AQI (US)
202324AQI (US)
31
28
31
30
31
30
31
31
30
30
29
31
363
Highest AQI (US) recorded in
June38AQI (US)
Lowest AQI (US) recorded in
December17AQI (US)
202224AQI (US)
30
21
31
30
31
30
24
3
29
31
30
31
321
Highest AQI (US) recorded in
March34AQI (US)
Lowest AQI (US) recorded in
December17AQI (US)
202124AQI (US)
29
26
2
31
30
31
30
31
31
30
31
30
31
361
2
Highest AQI (US) recorded in
April31AQI (US)
Lowest AQI (US) recorded in
November15AQI (US)
202022AQI (US)
13
21
18
30
31
31
30
30
28
31
263
Highest AQI (US) recorded in
April33AQI (US)
Lowest AQI (US) recorded in
November15AQI (US)
Most & Least Polluted Years Over the Last 7 Years
Most Polluted Year Recorded
2025(Avg.)
42AQI (US)Least Polluted Year Recorded
2020(Avg.)
22AQI (US)Chur's annual 2026 AQI (US) (35) shows an average percentage change of 35.7% (worsened AQI (US)) compared to previous years: 2020 (22), 2021 (24), 2022 (24), 2023 (24), 2024 (26), 2025 (42).
