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HistoryAQIPM₂.₅PM₁₀COSO₂NO₂O₃

Trondheim, Trondelag, Norway 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+

October Air Quality Analysis

Trondheim, Trondelag, Norway

2022
2023
2024
2025
2026
AQI
.
Days

AQI Trends: Highest and Lowest

Highest AQI recorded on
7th Oct 2024
136AQI
Lowest AQI recorded on
14th Oct 2023
7AQI

Same Day Analysis (3rd October):
On this day, AQI across the 5 years varied significantly: 2026 ranks 2nd highest AQI at 26 of Good air quality, showing improvement over 2025 on the same day.

Day & Night AQI Trend: 2nd Oct - 3rd Oct 2026

Trondheim, Trondelag, Norway

AQI
Day
Night
.

6 AM2nd Oct 2026

7 PM

5 AM3rd Oct 2026

Day time
Avg. Highest Time
2PM2nd Oct

48AQI

Avg. Lowest Time
11AM2nd Oct

39AQI

Night time
Avg. Highest Time
6AM2nd Oct

40AQI

Avg. Lowest Time
3AM3rd Oct

24AQI

In the last 24 hours,

Trondheim's AQI reached its highest point of 48 at 2 PM during the Day, while the lowest point, 24, was recorded at 3 AM during the Night between 2nd Oct and 3rd Oct 2026.

Day & Night AQI Trend : Sep - Oct 2026

Trondheim, Trondelag, Norway

SepOct
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 - 01st01st - 02nd02nd - 03rd03rd
Day
Night
4th Sep 2026186 AMAQI
4th Sep 2026187 AMAQI
4th Sep 2026208 AMAQI
4th Sep 2026219 AMAQI
4th Sep 20262110 AMAQI
4th Sep 20262111 AMAQI
4th Sep 20262512 PMAQI
4th Sep 2026251 PMAQI
4th Sep 2026282 PMAQI
4th Sep 2026423 PMAQI
4th Sep 2026254 PMAQI
4th Sep 2026285 PMAQI
4th Sep 2026306 PMAQI
4th Sep 2026367 PMAQI
4th Sep 2026278 PMAQI
4th Sep 2026289 PMAQI
4th Sep 20263010 PMAQI
4th Sep 20262511 PMAQI
5th Sep 20261812 AMAQI
5th Sep 2026131 AMAQI
5th Sep 2026182 AMAQI
5th Sep 2026263 AMAQI
5th Sep 2026224 AMAQI
5th Sep 2026225 AMAQI

11°C8/14°C

5th Sep 2026196 AMAQI
5th Sep 2026207 AMAQI
5th Sep 2026208 AMAQI
5th Sep 2026269 AMAQI
5th Sep 20262110 AMAQI
5th Sep 20262011 AMAQI
5th Sep 20262012 PMAQI
5th Sep 2026181 PMAQI
5th Sep 2026222 PMAQI
5th Sep 2026183 PMAQI
5th Sep 2026204 PMAQI
5th Sep 2026145 PMAQI
5th Sep 2026136 PMAQI
5th Sep 2026107 PMAQI
5th Sep 2026128 PMAQI
5th Sep 2026149 PMAQI
5th Sep 20261910 PMAQI
5th Sep 20262111 PMAQI
6th Sep 20262912 AMAQI
6th Sep 2026301 AMAQI
6th Sep 2026262 AMAQI
6th Sep 2026243 AMAQI
6th Sep 2026234 AMAQI
6th Sep 2026205 AMAQI

12°C11/14°C

6th Sep 2026206 AMAQI
6th Sep 2026167 AMAQI
6th Sep 2026228 AMAQI
6th Sep 2026209 AMAQI
6th Sep 20261810 AMAQI
6th Sep 20261811 AMAQI
6th Sep 20261812 PMAQI
6th Sep 2026161 PMAQI
6th Sep 2026332 PMAQI
6th Sep 2026413 PMAQI
6th Sep 2026344 PMAQI
6th Sep 2026235 PMAQI
6th Sep 2026116 PMAQI
6th Sep 2026147 PMAQI
6th Sep 2026408 PMAQI
6th Sep 2026229 PMAQI
6th Sep 20262310 PMAQI
6th Sep 20262511 PMAQI
7th Sep 20262512 AMAQI
7th Sep 2026231 AMAQI
7th Sep 2026142 AMAQI
7th Sep 2026133 AMAQI
7th Sep 2026114 AMAQI
7th Sep 2026125 AMAQI

11°C10/13°C

7th Sep 2026226 AMAQI
7th Sep 2026187 AMAQI
7th Sep 2026258 AMAQI
7th Sep 2026189 AMAQI
7th Sep 20262510 AMAQI
7th Sep 20263111 AMAQI
7th Sep 20263612 PMAQI
7th Sep 2026461 PMAQI
7th Sep 2026382 PMAQI
7th Sep 2026333 PMAQI
7th Sep 2026364 PMAQI
7th Sep 2026445 PMAQI
7th Sep 2026226 PMAQI
7th Sep 2026247 PMAQI
7th Sep 2026218 PMAQI
7th Sep 2026259 PMAQI
7th Sep 20262510 PMAQI
7th Sep 20262711 PMAQI
8th Sep 20262712 AMAQI
8th Sep 2026281 AMAQI
8th Sep 2026252 AMAQI
8th Sep 2026263 AMAQI
8th Sep 2026254 AMAQI
8th Sep 2026255 AMAQI

11°C10/13°C

8th Sep 2026206 AMAQI
8th Sep 2026127 AMAQI
8th Sep 2026238 AMAQI
8th Sep 2026279 AMAQI
8th Sep 20263510 AMAQI
8th Sep 20262811 AMAQI
8th Sep 20262312 PMAQI
8th Sep 2026301 PMAQI
8th Sep 2026302 PMAQI
8th Sep 2026243 PMAQI
8th Sep 2026264 PMAQI
8th Sep 2026255 PMAQI
8th Sep 2026286 PMAQI
8th Sep 2026267 PMAQI
8th Sep 2026258 PMAQI
8th Sep 2026259 PMAQI
8th Sep 20262510 PMAQI
8th Sep 20262511 PMAQI
9th Sep 20262512 AMAQI
9th Sep 2026251 AMAQI
9th Sep 2026252 AMAQI
9th Sep 2026233 AMAQI
9th Sep 2026234 AMAQI
9th Sep 2026195 AMAQI

10°C9/11°C

9th Sep 2026226 AMAQI
9th Sep 2026237 AMAQI
9th Sep 2026188 AMAQI
9th Sep 2026189 AMAQI
9th Sep 20261910 AMAQI
9th Sep 20262011 AMAQI
9th Sep 20262112 PMAQI
9th Sep 2026191 PMAQI
9th Sep 2026242 PMAQI
9th Sep 2026233 PMAQI
9th Sep 2026214 PMAQI
9th Sep 2026135 PMAQI
9th Sep 2026106 PMAQI
9th Sep 2026197 PMAQI
9th Sep 2026228 PMAQI
9th Sep 2026219 PMAQI
9th Sep 20262110 PMAQI
9th Sep 20262311 PMAQI
10th Sep 20262512 AMAQI
10th Sep 2026161 AMAQI
10th Sep 202692 AMAQI
10th Sep 202693 AMAQI
10th Sep 2026154 AMAQI
10th Sep 2026125 AMAQI

9°C8/11°C

10th Sep 202666 AMAQI
10th Sep 2026127 AMAQI
10th Sep 2026148 AMAQI
10th Sep 2026189 AMAQI
10th Sep 20262010 AMAQI
10th Sep 20262411 AMAQI
10th Sep 20264012 PMAQI
10th Sep 2026221 PMAQI
10th Sep 2026272 PMAQI
10th Sep 2026243 PMAQI
10th Sep 2026514 PMAQI
10th Sep 2026505 PMAQI
10th Sep 2026256 PMAQI
10th Sep 2026257 PMAQI
10th Sep 2026278 PMAQI
10th Sep 2026299 PMAQI
10th Sep 20262210 PMAQI
10th Sep 20262611 PMAQI
11th Sep 20262512 AMAQI
11th Sep 2026251 AMAQI
11th Sep 2026232 AMAQI
11th Sep 2026173 AMAQI
11th Sep 2026254 AMAQI
11th Sep 2026235 AMAQI

10°C8/12°C

11th Sep 2026256 AMAQI
11th Sep 2026237 AMAQI
11th Sep 2026268 AMAQI
11th Sep 2026279 AMAQI
11th Sep 20262810 AMAQI
11th Sep 20262411 AMAQI
11th Sep 20262812 PMAQI
11th Sep 2026301 PMAQI
11th Sep 2026322 PMAQI
11th Sep 2026243 PMAQI
11th Sep 2026244 PMAQI
11th Sep 2026235 PMAQI
11th Sep 2026276 PMAQI
11th Sep 2026287 PMAQI
11th Sep 2026268 PMAQI
11th Sep 2026349 PMAQI
11th Sep 20264010 PMAQI
11th Sep 20263211 PMAQI
12th Sep 20262512 AMAQI
12th Sep 2026241 AMAQI
12th Sep 2026292 AMAQI
12th Sep 2026263 AMAQI
12th Sep 2026254 AMAQI
12th Sep 2026255 AMAQI

11°C8/14°C

12th Sep 2026296 AMAQI
12th Sep 2026297 AMAQI
12th Sep 2026278 AMAQI
12th Sep 2026299 AMAQI
12th Sep 20262910 AMAQI
12th Sep 20262511 AMAQI
12th Sep 20262412 PMAQI
12th Sep 2026221 PMAQI
12th Sep 2026242 PMAQI
12th Sep 2026323 PMAQI
12th Sep 2026394 PMAQI
12th Sep 2026415 PMAQI
12th Sep 2026416 PMAQI
12th Sep 2026367 PMAQI
12th Sep 2026248 PMAQI
12th Sep 2026249 PMAQI
12th Sep 20262711 PMAQI
13th Sep 20262512 AMAQI
13th Sep 2026261 AMAQI
13th Sep 2026252 AMAQI
13th Sep 2026253 AMAQI
13th Sep 2026244 AMAQI
13th Sep 2026215 AMAQI

13°C10/16°C

13th Sep 2026246 AMAQI
13th Sep 2026277 AMAQI
13th Sep 2026248 AMAQI
13th Sep 2026239 AMAQI
13th Sep 20262310 AMAQI
13th Sep 20262111 AMAQI
13th Sep 20262212 PMAQI
13th Sep 2026221 PMAQI
13th Sep 2026182 PMAQI
13th Sep 2026163 PMAQI
13th Sep 2026184 PMAQI
13th Sep 2026205 PMAQI
13th Sep 2026186 PMAQI
13th Sep 2026217 PMAQI
13th Sep 2026208 PMAQI
13th Sep 2026219 PMAQI
13th Sep 20262310 PMAQI
13th Sep 20262211 PMAQI
14th Sep 20262212 AMAQI
14th Sep 2026301 AMAQI
14th Sep 2026302 AMAQI
14th Sep 2026303 AMAQI
14th Sep 2026284 AMAQI
14th Sep 2026235 AMAQI

10°C10/12°C

14th Sep 2026216 AMAQI
14th Sep 2026257 AMAQI
14th Sep 2026228 AMAQI
14th Sep 2026219 AMAQI
14th Sep 20262310 AMAQI
14th Sep 20262811 AMAQI
14th Sep 20262612 PMAQI
14th Sep 2026251 PMAQI
14th Sep 2026232 PMAQI
14th Sep 2026273 PMAQI
14th Sep 2026244 PMAQI
14th Sep 2026225 PMAQI
14th Sep 2026266 PMAQI
14th Sep 2026247 PMAQI
14th Sep 2026288 PMAQI
14th Sep 2026249 PMAQI
14th Sep 20262710 PMAQI
14th Sep 20262611 PMAQI
15th Sep 20262612 AMAQI
15th Sep 2026281 AMAQI
15th Sep 2026252 AMAQI
15th Sep 2026223 AMAQI
15th Sep 2026384 AMAQI
15th Sep 2026255 AMAQI

10°C7/12°C

15th Sep 2026256 AMAQI
15th Sep 2026257 AMAQI
15th Sep 2026268 AMAQI
15th Sep 2026249 AMAQI
15th Sep 20262310 AMAQI
15th Sep 20262611 AMAQI
15th Sep 20262612 PMAQI
15th Sep 2026251 PMAQI
15th Sep 2026302 PMAQI
15th Sep 2026293 PMAQI
15th Sep 2026384 PMAQI
15th Sep 2026305 PMAQI
15th Sep 2026366 PMAQI
15th Sep 2026387 PMAQI
15th Sep 2026328 PMAQI
15th Sep 2026299 PMAQI
15th Sep 20262810 PMAQI
15th Sep 20262311 PMAQI
16th Sep 20263212 AMAQI
16th Sep 2026321 AMAQI
16th Sep 2026302 AMAQI
16th Sep 2026213 AMAQI
16th Sep 2026204 AMAQI
16th Sep 2026245 AMAQI

12°C10/15°C

16th Sep 2026186 AMAQI
16th Sep 2026167 AMAQI
16th Sep 2026308 AMAQI
16th Sep 2026329 AMAQI
16th Sep 20262810 AMAQI
16th Sep 20262011 AMAQI
16th Sep 20263612 PMAQI
16th Sep 2026421 PMAQI
16th Sep 2026412 PMAQI
16th Sep 2026253 PMAQI
16th Sep 2026214 PMAQI
16th Sep 2026225 PMAQI
16th Sep 2026186 PMAQI
16th Sep 2026207 PMAQI
16th Sep 202688 PMAQI
16th Sep 202689 PMAQI
16th Sep 20261510 PMAQI
16th Sep 20261611 PMAQI
17th Sep 20262212 AMAQI
17th Sep 2026251 AMAQI
17th Sep 2026182 AMAQI
17th Sep 2026203 AMAQI
17th Sep 2026204 AMAQI
17th Sep 2026125 AMAQI

11°C11/12°C

17th Sep 2026146 AMAQI
17th Sep 2026177 AMAQI
17th Sep 2026168 AMAQI
17th Sep 2026179 AMAQI
17th Sep 20261410 AMAQI
17th Sep 20261411 AMAQI
17th Sep 20261812 PMAQI
17th Sep 2026201 PMAQI
17th Sep 2026222 PMAQI
17th Sep 2026263 PMAQI
17th Sep 2026264 PMAQI
17th Sep 2026185 PMAQI
17th Sep 2026186 PMAQI
17th Sep 2026207 PMAQI
17th Sep 2026218 PMAQI
17th Sep 2026189 PMAQI
17th Sep 20262010 PMAQI
17th Sep 20262011 PMAQI
18th Sep 20262012 AMAQI
18th Sep 2026211 AMAQI
18th Sep 2026182 AMAQI
18th Sep 2026233 AMAQI
18th Sep 2026244 AMAQI
18th Sep 2026215 AMAQI

10°C9/11°C

18th Sep 2026206 AMAQI
18th Sep 2026217 AMAQI
18th Sep 2026248 AMAQI
18th Sep 2026239 AMAQI
18th Sep 20262310 AMAQI
18th Sep 20262611 AMAQI
18th Sep 20262612 PMAQI
18th Sep 2026251 PMAQI
18th Sep 2026232 PMAQI
18th Sep 2026233 PMAQI
18th Sep 2026244 PMAQI
18th Sep 2026345 PMAQI
18th Sep 2026386 PMAQI
18th Sep 2026277 PMAQI
18th Sep 2026308 PMAQI
18th Sep 2026309 PMAQI
18th Sep 20262810 PMAQI
18th Sep 20263211 PMAQI
19th Sep 20262112 AMAQI
19th Sep 2026251 AMAQI
19th Sep 2026272 AMAQI
19th Sep 2026263 AMAQI
19th Sep 2026244 AMAQI
19th Sep 2026205 AMAQI

10°C8/12°C

19th Sep 2026166 AMAQI
19th Sep 2026187 AMAQI
19th Sep 2026268 AMAQI
19th Sep 2026209 AMAQI
19th Sep 20261810 AMAQI
19th Sep 20262211 AMAQI
19th Sep 20262412 PMAQI
19th Sep 2026301 PMAQI
19th Sep 2026222 PMAQI
19th Sep 2026183 PMAQI
19th Sep 2026204 PMAQI
19th Sep 2026185 PMAQI
19th Sep 2026206 PMAQI
19th Sep 2026207 PMAQI
19th Sep 2026238 PMAQI
19th Sep 2026279 PMAQI
19th Sep 20261910 PMAQI
19th Sep 20262011 PMAQI
20th Sep 20262312 AMAQI
20th Sep 2026271 AMAQI
20th Sep 2026262 AMAQI
20th Sep 2026203 AMAQI
20th Sep 2026184 AMAQI
20th Sep 2026185 AMAQI

10°C9/11°C

20th Sep 2026206 AMAQI
20th Sep 2026207 AMAQI
20th Sep 2026198 AMAQI
20th Sep 2026189 AMAQI
20th Sep 20262010 AMAQI
20th Sep 20262111 AMAQI
20th Sep 20261812 PMAQI
20th Sep 2026221 PMAQI
20th Sep 2026212 PMAQI
20th Sep 2026223 PMAQI
20th Sep 2026214 PMAQI
20th Sep 2026185 PMAQI
20th Sep 2026186 PMAQI
20th Sep 2026297 PMAQI
20th Sep 2026238 PMAQI
20th Sep 2026219 PMAQI
20th Sep 20262210 PMAQI
20th Sep 20262111 PMAQI
21st Sep 20261812 AMAQI
21st Sep 2026231 AMAQI
21st Sep 2026202 AMAQI
21st Sep 2026183 AMAQI
21st Sep 2026204 AMAQI
21st Sep 2026185 AMAQI

10°C9/11°C

21st Sep 2026206 AMAQI
21st Sep 2026207 AMAQI
21st Sep 2026248 AMAQI
21st Sep 2026249 AMAQI
21st Sep 20262210 AMAQI
21st Sep 20261911 AMAQI
21st Sep 20261812 PMAQI
21st Sep 2026181 PMAQI
21st Sep 2026222 PMAQI
21st Sep 2026183 PMAQI
21st Sep 2026194 PMAQI
21st Sep 2026255 PMAQI
21st Sep 2026246 PMAQI
21st Sep 2026247 PMAQI
21st Sep 2026248 PMAQI
21st Sep 2026189 PMAQI
21st Sep 20262010 PMAQI
21st Sep 20264311 PMAQI
22nd Sep 20263112 AMAQI
22nd Sep 2026331 AMAQI
22nd Sep 2026302 AMAQI
22nd Sep 2026303 AMAQI
22nd Sep 2026304 AMAQI
22nd Sep 2026305 AMAQI

10°C9/11°C

22nd Sep 2026286 AMAQI
22nd Sep 2026257 AMAQI
22nd Sep 2026258 AMAQI
22nd Sep 2026289 AMAQI
22nd Sep 20262510 AMAQI
22nd Sep 20262611 AMAQI
22nd Sep 20263012 PMAQI
22nd Sep 2026361 PMAQI
22nd Sep 2026382 PMAQI
22nd Sep 2026283 PMAQI
22nd Sep 2026304 PMAQI
22nd Sep 2026285 PMAQI
22nd Sep 2026286 PMAQI
22nd Sep 2026247 PMAQI
22nd Sep 2026248 PMAQI
22nd Sep 2026279 PMAQI
22nd Sep 20262310 PMAQI
22nd Sep 20262811 PMAQI
23rd Sep 20261812 AMAQI
23rd Sep 2026231 AMAQI
23rd Sep 2026252 AMAQI
23rd Sep 2026253 AMAQI
23rd Sep 2026254 AMAQI
23rd Sep 2026245 AMAQI

10°C9/11°C

23rd Sep 2026236 AMAQI
23rd Sep 2026227 AMAQI
23rd Sep 2026228 AMAQI
23rd Sep 2026229 AMAQI
23rd Sep 20262210 AMAQI
23rd Sep 20262311 AMAQI
23rd Sep 20262812 PMAQI
23rd Sep 2026271 PMAQI
23rd Sep 2026302 PMAQI
23rd Sep 2026243 PMAQI
23rd Sep 2026224 PMAQI
23rd Sep 2026245 PMAQI
23rd Sep 2026226 PMAQI
23rd Sep 2026247 PMAQI
23rd Sep 2026258 PMAQI
23rd Sep 2026249 PMAQI
23rd Sep 20261810 PMAQI
23rd Sep 20261811 PMAQI
24th Sep 20262112 AMAQI
24th Sep 2026211 AMAQI
24th Sep 2026202 AMAQI
24th Sep 2026263 AMAQI
24th Sep 2026284 AMAQI
24th Sep 2026155 AMAQI

10°C9/11°C

24th Sep 2026166 AMAQI
24th Sep 2026167 AMAQI
24th Sep 2026118 AMAQI
24th Sep 2026119 AMAQI
24th Sep 20261010 AMAQI
24th Sep 20261011 AMAQI
24th Sep 20261112 PMAQI
24th Sep 2026131 PMAQI
24th Sep 2026222 PMAQI
24th Sep 2026273 PMAQI
24th Sep 2026254 PMAQI
24th Sep 2026195 PMAQI
24th Sep 2026256 PMAQI
24th Sep 2026257 PMAQI
24th Sep 2026188 PMAQI
24th Sep 2026189 PMAQI
24th Sep 20262310 PMAQI
24th Sep 20262511 PMAQI
25th Sep 20262312 AMAQI
25th Sep 2026241 AMAQI
25th Sep 2026242 AMAQI
25th Sep 2026243 AMAQI
25th Sep 2026184 AMAQI
25th Sep 2026145 AMAQI

9°C8/10°C

25th Sep 2026166 AMAQI
25th Sep 2026147 AMAQI
25th Sep 2026188 AMAQI
25th Sep 2026189 AMAQI
25th Sep 20262310 AMAQI
25th Sep 20262311 AMAQI
25th Sep 20262412 PMAQI
25th Sep 2026211 PMAQI
25th Sep 2026182 PMAQI
25th Sep 2026213 PMAQI
25th Sep 2026234 PMAQI
25th Sep 2026265 PMAQI
25th Sep 2026306 PMAQI
25th Sep 2026297 PMAQI
25th Sep 2026258 PMAQI
25th Sep 2026259 PMAQI
25th Sep 20262510 PMAQI
25th Sep 20262311 PMAQI
26th Sep 20262412 AMAQI
26th Sep 2026221 AMAQI
26th Sep 2026202 AMAQI
26th Sep 2026213 AMAQI
26th Sep 2026224 AMAQI
26th Sep 2026245 AMAQI

9°C7/11°C

26th Sep 2026236 AMAQI
26th Sep 2026207 AMAQI
26th Sep 2026218 AMAQI
26th Sep 2026229 AMAQI
26th Sep 20262410 AMAQI
26th Sep 20262011 AMAQI
26th Sep 20262012 PMAQI
26th Sep 2026141 PMAQI
26th Sep 2026202 PMAQI
26th Sep 2026203 PMAQI
26th Sep 2026184 PMAQI
26th Sep 2026225 PMAQI
26th Sep 2026246 PMAQI
26th Sep 2026247 PMAQI
26th Sep 2026248 PMAQI
26th Sep 2026239 PMAQI
26th Sep 20262810 PMAQI
26th Sep 20262811 PMAQI
27th Sep 20262712 AMAQI
27th Sep 2026261 AMAQI
27th Sep 2026232 AMAQI
27th Sep 2026233 AMAQI
27th Sep 2026214 AMAQI
27th Sep 2026255 AMAQI

10°C9/12°C

27th Sep 2026226 AMAQI
27th Sep 2026197 AMAQI
27th Sep 2026218 AMAQI
27th Sep 2026219 AMAQI
27th Sep 20262110 AMAQI
27th Sep 20262011 AMAQI
27th Sep 20262112 PMAQI
27th Sep 2026181 PMAQI
27th Sep 2026232 PMAQI
27th Sep 2026173 PMAQI
27th Sep 2026174 PMAQI
27th Sep 2026225 PMAQI
27th Sep 2026206 PMAQI
27th Sep 2026217 PMAQI
27th Sep 2026218 PMAQI
27th Sep 2026239 PMAQI
27th Sep 20262110 PMAQI
27th Sep 20262211 PMAQI
28th Sep 20262112 AMAQI
28th Sep 2026191 AMAQI
28th Sep 2026212 AMAQI
28th Sep 2026193 AMAQI
28th Sep 2026224 AMAQI
28th Sep 2026305 AMAQI

11°C9/14°C

28th Sep 2026286 AMAQI
28th Sep 2026207 AMAQI
28th Sep 2026238 AMAQI
28th Sep 2026219 AMAQI
28th Sep 20262210 AMAQI
28th Sep 20262411 AMAQI
28th Sep 20262212 PMAQI
28th Sep 2026241 PMAQI
28th Sep 2026232 PMAQI
28th Sep 2026253 PMAQI
28th Sep 2026304 PMAQI
28th Sep 2026285 PMAQI
28th Sep 2026286 PMAQI
28th Sep 2026267 PMAQI
28th Sep 2026288 PMAQI
28th Sep 2026239 PMAQI
28th Sep 20262510 PMAQI
28th Sep 20262511 PMAQI
29th Sep 20262812 AMAQI
29th Sep 2026321 AMAQI
29th Sep 2026302 AMAQI
29th Sep 2026283 AMAQI
29th Sep 2026304 AMAQI
29th Sep 2026255 AMAQI

12°C11/15°C

29th Sep 2026216 AMAQI
29th Sep 2026257 AMAQI
29th Sep 2026228 AMAQI
29th Sep 2026219 AMAQI
29th Sep 20262510 AMAQI
29th Sep 20262411 AMAQI
29th Sep 20262412 PMAQI
29th Sep 2026241 PMAQI
29th Sep 2026252 PMAQI
29th Sep 2026283 PMAQI
29th Sep 2026294 PMAQI
29th Sep 2026295 PMAQI
29th Sep 2026276 PMAQI
29th Sep 2026177 PMAQI
29th Sep 2026328 PMAQI
29th Sep 2026299 PMAQI
29th Sep 20263210 PMAQI
29th Sep 20263211 PMAQI
30th Sep 20263212 AMAQI
30th Sep 2026321 AMAQI
30th Sep 2026282 AMAQI
30th Sep 2026263 AMAQI
30th Sep 2026214 AMAQI
30th Sep 2026205 AMAQI

11°C10/12°C

30th Sep 2026256 AMAQI
30th Sep 2026247 AMAQI
30th Sep 2026238 AMAQI
30th Sep 2026249 AMAQI
30th Sep 20262510 AMAQI
30th Sep 20262711 AMAQI
30th Sep 20262512 PMAQI
30th Sep 2026271 PMAQI
30th Sep 2026292 PMAQI
30th Sep 2026253 PMAQI
30th Sep 2026234 PMAQI
30th Sep 2026255 PMAQI
30th Sep 2026286 PMAQI
30th Sep 2026267 PMAQI
30th Sep 2026328 PMAQI
30th Sep 2026349 PMAQI
30th Sep 20262510 PMAQI
30th Sep 20262511 PMAQI
1st Oct 20262512 AMAQI
1st Oct 2026261 AMAQI
1st Oct 2026262 AMAQI
1st Oct 2026263 AMAQI
1st Oct 2026234 AMAQI
1st Oct 2026235 AMAQI

13°C10/17°C

1st Oct 2026226 AMAQI
1st Oct 2026227 AMAQI
1st Oct 2026258 AMAQI
1st Oct 2026239 AMAQI
1st Oct 20262610 AMAQI
1st Oct 20262811 AMAQI
1st Oct 20263212 PMAQI
1st Oct 2026301 PMAQI
1st Oct 2026342 PMAQI
1st Oct 2026363 PMAQI
1st Oct 2026424 PMAQI
1st Oct 2026425 PMAQI
1st Oct 2026406 PMAQI
1st Oct 2026387 PMAQI
1st Oct 2026398 PMAQI
1st Oct 2026389 PMAQI
1st Oct 20263810 PMAQI
1st Oct 20264011 PMAQI
2nd Oct 20264212 AMAQI
2nd Oct 2026421 AMAQI
2nd Oct 2026442 AMAQI
2nd Oct 2026423 AMAQI
2nd Oct 2026424 AMAQI
2nd Oct 2026385 AMAQI

14°C12/16°C

2nd Oct 2026406 AMAQI
2nd Oct 2026407 AMAQI
2nd Oct 2026408 AMAQI
2nd Oct 2026419 AMAQI
2nd Oct 20264210 AMAQI
2nd Oct 20263911 AMAQI
2nd Oct 20264112 PMAQI
2nd Oct 2026441 PMAQI
2nd Oct 2026482 PMAQI
2nd Oct 2026463 PMAQI
2nd Oct 2026464 PMAQI
2nd Oct 2026455 PMAQI
2nd Oct 2026416 PMAQI
2nd Oct 2026407 PMAQI
2nd Oct 2026368 PMAQI
2nd Oct 2026289 PMAQI
2nd Oct 20263010 PMAQI
2nd Oct 20262711 PMAQI
3rd Oct 20262512 AMAQI
3rd Oct 2026261 AMAQI
3rd Oct 2026262 AMAQI
3rd Oct 2026243 AMAQI
3rd Oct 2026264 AMAQI
3rd Oct 2026255 AMAQI

12°C11/15°C

3rd Oct 2026276 AMAQI
6 AM
3rd Oct 2026257 AMAQI
3rd Oct 2026238 AMAQI
3rd Oct 2026239 AMAQI
3rd Oct 20262910 AMAQI
3rd Oct 20263011 AMAQI
3rd Oct 20262912 PMAQI
12 PM
3rd Oct 2026251 PMAQI
3rd Oct 2026242 PMAQI
3rd Oct 2026273 PMAQI
3rd Oct 2026274 PMAQI
3rd Oct 2026275 PMAQI
3rd Oct 2026216 PMAQI
3rd Oct 2026247 PMAQI
7 PM
3rd Oct 2026258 PMAQI
3rd Oct 2026239 PMAQI
3rd Oct 20262310 PMAQI
3rd Oct 20262511 PMAQI
12 AM
5 AM

11°C10/13°C

Day time
Avg. Highest Time
2 PM

27AQI

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

21AQI

1 hours / Day
30 hours / Month
In the last 30 days, during the daytime, the highest AQI was between 2 PM to 2 PM (Avg. 27), while the lowest AQI was between 7 AM to 7 AM (Avg. 21).
Night time
Avg. Highest Time
1 AM

26AQI

1 hours / Day
30 hours / Month
Avg. Lowest Time
5 AM

22AQI

1 hours / Day
30 hours / Month
In the last 30 days, during the daytime, the highest AQI was between 1 AM to 1 AM (Avg. 26), while the lowest AQI was between 5 AM to 5 AM (Avg. 22).

2026 Days Vs Air Quality

Trondheim, Trondelag, Norway

2026

97%

265

3%

8

Total number of days with different AQI categories in last 276 days in 2026 (89 days remaining)

Good
265 Days
Moderate
8 Days
Poor
0 Days
Unhealthy
0 Days
Severe
0 Days
Hazardous
0 Days

Under WHO’s Safe Air Quality Limits: 97%

Health Risk Level:

Very Low

In 2026, 97% of 276 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

Trondheim, Trondelag, Norway

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
22AQI (US)
2nd January 2026
25AQI (US)
3rd January 2026
47AQI (US)
4th January 2026
66AQI (US)
5th January 2026
69AQI (US)
6th January 2026
53AQI (US)
7th January 2026
50AQI (US)
8th January 2026
22AQI (US)
9th January 2026
24AQI (US)
10th January 2026
30AQI (US)
11th January 2026
50AQI (US)
12th January 2026
24AQI (US)
13th January 2026
12AQI (US)
14th January 2026
18AQI (US)
15th January 2026
46AQI (US)
16th January 2026
15AQI (US)
17th January 2026
24AQI (US)
18th January 2026
49AQI (US)
19th January 2026
63AQI (US)
20th January 2026
53AQI (US)
21st January 2026
38AQI (US)
22nd January 2026
22AQI (US)
23rd January 2026
17AQI (US)
24th January 2026
40AQI (US)
25th January 2026
40AQI (US)
26th January 2026
35AQI (US)
27th January 2026
41AQI (US)
28th January 2026
36AQI (US)
29th January 2026
48AQI (US)
30th January 2026
36AQI (US)
31st January 2026
12AQI (US)
1st February 2026
26AQI (US)
2nd February 2026
30AQI (US)
3rd February 2026
48AQI (US)
4th February 2026
38AQI (US)
5th February 2026
48AQI (US)
6th February 2026
57AQI (US)
7th February 2026
54AQI (US)
8th February 2026
29AQI (US)
9th February 2026
24AQI (US)
10th February 2026
29AQI (US)
11th February 2026
40AQI (US)
12th February 2026
32AQI (US)
13th February 2026
26AQI (US)
14th February 2026
19AQI (US)
15th February 2026
34AQI (US)
16th February 2026
35AQI (US)
17th February 2026
30AQI (US)
18th February 2026
30AQI (US)
19th February 2026
32AQI (US)
20th February 2026
52AQI (US)
21st February 2026
25AQI (US)
22nd February 2026
26AQI (US)
23rd February 2026
35AQI (US)
24th February 2026
23AQI (US)
25th February 2026
19AQI (US)
26th February 2026
38AQI (US)
27th February 2026
34AQI (US)
28th February 2026
15AQI (US)
1st March 2026
28AQI (US)
2nd March 2026
22AQI (US)
3rd March 2026
26AQI (US)
4th March 2026
27AQI (US)
5th March 2026
34AQI (US)
6th March 2026
43AQI (US)
7th March 2026
45AQI (US)
8th March 2026
46AQI (US)
9th March 2026
42AQI (US)
10th March 2026
46AQI (US)
11th March 2026
24AQI (US)
12th March 2026
12AQI (US)
13th March 2026
28AQI (US)
14th March 2026
28AQI (US)
15th March 2026
28AQI (US)
16th March 2026
18AQI (US)
17th March 2026
18AQI (US)
18th March 2026
26AQI (US)
19th March 2026
32AQI (US)
20th March 2026
49AQI (US)
21st March 2026
25AQI (US)
22nd March 2026
21AQI (US)
23rd March 2026
28AQI (US)
24th March 2026
40AQI (US)
25th March 2026
36AQI (US)
26th March 2026
16AQI (US)
27th March 2026
23AQI (US)
28th March 2026
24AQI (US)
29th March 2026
25AQI (US)
30th March 2026
31AQI (US)
31st March 2026
24AQI (US)
1st April 2026
26AQI (US)
2nd April 2026
20AQI (US)
3rd April 2026
12AQI (US)
4th April 2026
18AQI (US)
5th April 2026
19AQI (US)
6th April 2026
12AQI (US)
7th April 2026
26AQI (US)
8th April 2026
35AQI (US)
9th April 2026
26AQI (US)
10th April 2026
23AQI (US)
11th April 2026
29AQI (US)
12th April 2026
26AQI (US)
13th April 2026
28AQI (US)
14th April 2026
24AQI (US)
15th April 2026
26AQI (US)
16th April 2026
37AQI (US)
17th April 2026
18th April 2026
26AQI (US)
19th April 2026
20AQI (US)
20th April 2026
19AQI (US)
21st April 2026
23AQI (US)
22nd April 2026
23rd April 2026
9AQI (US)
24th April 2026
14AQI (US)
25th April 2026
17AQI (US)
26th April 2026
8AQI (US)
27th April 2026
22AQI (US)
28th April 2026
27AQI (US)
29th April 2026
20AQI (US)
30th April 2026
26AQI (US)
1st May 2026
26AQI (US)
2nd May 2026
23AQI (US)
3rd May 2026
13AQI (US)
4th May 2026
19AQI (US)
5th May 2026
20AQI (US)
6th May 2026
24AQI (US)
7th May 2026
22AQI (US)
8th May 2026
22AQI (US)
9th May 2026
10th May 2026
13AQI (US)
11th May 2026
24AQI (US)
12th May 2026
28AQI (US)
13th May 2026
32AQI (US)
14th May 2026
14AQI (US)
15th May 2026
20AQI (US)
16th May 2026
36AQI (US)
17th May 2026
41AQI (US)
18th May 2026
36AQI (US)
19th May 2026
34AQI (US)
20th May 2026
32AQI (US)
21st May 2026
36AQI (US)
22nd May 2026
34AQI (US)
23rd May 2026
38AQI (US)
24th May 2026
50AQI (US)
25th May 2026
42AQI (US)
26th May 2026
28AQI (US)
27th May 2026
10AQI (US)
28th May 2026
16AQI (US)
29th May 2026
22AQI (US)
30th May 2026
19AQI (US)
31st May 2026
24AQI (US)
1st June 2026
29AQI (US)
2nd June 2026
23AQI (US)
3rd June 2026
22AQI (US)
4th June 2026
20AQI (US)
5th June 2026
12AQI (US)
6th June 2026
20AQI (US)
7th June 2026
17AQI (US)
8th June 2026
22AQI (US)
9th June 2026
18AQI (US)
10th June 2026
9AQI (US)
11th June 2026
14AQI (US)
12th June 2026
18AQI (US)
13th June 2026
12AQI (US)
14th June 2026
20AQI (US)
15th June 2026
20AQI (US)
16th June 2026
22AQI (US)
17th June 2026
23AQI (US)
18th June 2026
22AQI (US)
19th June 2026
19AQI (US)
20th June 2026
17AQI (US)
21st June 2026
10AQI (US)
22nd June 2026
20AQI (US)
23rd June 2026
20AQI (US)
24th June 2026
18AQI (US)
25th June 2026
16AQI (US)
26th June 2026
22AQI (US)
27th June 2026
24AQI (US)
28th June 2026
22AQI (US)
29th June 2026
21AQI (US)
30th June 2026
20AQI (US)
1st July 2026
24AQI (US)
2nd July 2026
22AQI (US)
3rd July 2026
26AQI (US)
4th July 2026
12AQI (US)
5th July 2026
10AQI (US)
6th July 2026
10AQI (US)
7th July 2026
19AQI (US)
8th July 2026
18AQI (US)
9th July 2026
18AQI (US)
10th July 2026
20AQI (US)
11th July 2026
16AQI (US)
12th July 2026
26AQI (US)
13th July 2026
25AQI (US)
14th July 2026
28AQI (US)
15th July 2026
40AQI (US)
16th July 2026
42AQI (US)
17th July 2026
31AQI (US)
18th July 2026
28AQI (US)
19th July 2026
20AQI (US)
20th July 2026
20AQI (US)
21st July 2026
22AQI (US)
22nd July 2026
22AQI (US)
23rd July 2026
20AQI (US)
24th July 2026
22AQI (US)
25th July 2026
16AQI (US)
26th July 2026
18AQI (US)
27th July 2026
20AQI (US)
28th July 2026
22AQI (US)
29th July 2026
24AQI (US)
30th July 2026
26AQI (US)
31st July 2026
21AQI (US)
1st August 2026
16AQI (US)
2nd August 2026
18AQI (US)
3rd August 2026
23AQI (US)
4th August 2026
22AQI (US)
5th August 2026
24AQI (US)
6th August 2026
22AQI (US)
7th August 2026
25AQI (US)
8th August 2026
23AQI (US)
9th August 2026
22AQI (US)
10th August 2026
18AQI (US)
11th August 2026
18AQI (US)
12th August 2026
24AQI (US)
13th August 2026
26AQI (US)
14th August 2026
27AQI (US)
15th August 2026
20AQI (US)
16th August 2026
16AQI (US)
17th August 2026
16AQI (US)
18th August 2026
16AQI (US)
19th August 2026
24AQI (US)
20th August 2026
22AQI (US)
21st August 2026
20AQI (US)
22nd August 2026
19AQI (US)
23rd August 2026
17AQI (US)
24th August 2026
27AQI (US)
25th August 2026
25AQI (US)
26th August 2026
32AQI (US)
27th August 2026
37AQI (US)
28th August 2026
28AQI (US)
29th August 2026
22AQI (US)
30th August 2026
20AQI (US)
31st August 2026
22AQI (US)
1st September 2026
24AQI (US)
2nd September 2026
28AQI (US)
3rd September 2026
21AQI (US)
4th September 2026
25AQI (US)
5th September 2026
18AQI (US)
6th September 2026
24AQI (US)
7th September 2026
26AQI (US)
8th September 2026
26AQI (US)
9th September 2026
20AQI (US)
10th September 2026
23AQI (US)
11th September 2026
26AQI (US)
12th September 2026
29AQI (US)
13th September 2026
22AQI (US)
14th September 2026
25AQI (US)
15th September 2026
28AQI (US)
16th September 2026
24AQI (US)
17th September 2026
19AQI (US)
18th September 2026
26AQI (US)
19th September 2026
22AQI (US)
20th September 2026
21AQI (US)
21st September 2026
22AQI (US)
22nd September 2026
28AQI (US)
23rd September 2026
24AQI (US)
24th September 2026
19AQI (US)
25th September 2026
22AQI (US)
26th September 2026
22AQI (US)
27th September 2026
22AQI (US)
28th September 2026
24AQI (US)
29th September 2026
26AQI (US)
30th September 2026
26AQI (US)
1st October 2026
32AQI (US)
2nd October 2026
40AQI (US)
3rd October 2026
26AQI (US)
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

36AQI (US)

33AQI (US)

30AQI (US)

22AQI (US)

27AQI (US)

19AQI (US)

22AQI (US)

22AQI (US)

24AQI (US)

33AQI (US)

No. of days

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

202626AQI (US)

26
5
25
3
31
28
30
30
31
31
30
3
265
8

Highest AQI (US) recorded in

January

36AQI (US)

Lowest AQI (US) recorded in

June

19AQI (US)

202528AQI (US)

31
28
31
30
31
30
28
3
31
30
30
1
29
1
25
6
354
11

Highest AQI (US) recorded in

December

39AQI (US)

Lowest AQI (US) recorded in

September

18AQI (US)

202422AQI (US)

16
1
22
28
2
31
30
31
31
28
2
27
1
3
30
31
306
5
3

Highest AQI (US) recorded in

May

30AQI (US)

Lowest AQI (US) recorded in

March

9AQI (US)

202325AQI (US)

31
28
31
29
1
22
1
26
26
31
30
31
28
1
30
1
343
4

Highest AQI (US) recorded in

May

32AQI (US)

Lowest AQI (US) recorded in

September

18AQI (US)

202223AQI (US)

30
22
30
1
29
1
29
1
30
24
1
29
31
30
29
2
314
5

Highest AQI (US) recorded in

December

30AQI (US)

Lowest AQI (US) recorded in

August

16AQI (US)

202124AQI (US)

3
29
2
30
23
31
23
30
1
29
1
31
229
4

Highest AQI (US) recorded in

May

29AQI (US)

Lowest AQI (US) recorded in

December

20AQI (US)

Most & Least Polluted Years Over the Last 6 Years

Most Polluted Year Recorded
2025(Avg.)
28AQI (US)
Least Polluted Year Recorded
2024(Avg.)
22AQI (US)

Trondheim's annual 2026 AQI (US) (26) shows an average percentage change of 7.2% (worsened AQI (US)) compared to previous years: 2021 (24), 2022 (23), 2023 (25), 2024 (22), 2025 (28).