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HistoryAQIPM₂.₅PM₁₀COSO₂NO₂O₃

Harstad, Troms, 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

Harstad, Troms, Norway

2022
2023
2024
2025
2026
AQI
.
Days

AQI Trends: Highest and Lowest

Highest AQI recorded on
15th Oct 2022
59AQI
Lowest AQI recorded on
6th Oct 2022
5AQI

Same Day Analysis (3rd October):
On this day, AQI across the 5 years varied significantly: 2026 ranks 2nd highest AQI at 27 of Good air quality, showing improvement over 2025 on the same day.

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

Harstad, Troms, Norway

AQI
Day
Night
.

6 AM2nd Oct 2026

7 PM

5 AM3rd Oct 2026

Day time
Avg. Highest Time
12PM2nd Oct

36AQI

Avg. Lowest Time
4PM2nd Oct

21AQI

Night time
Avg. Highest Time
1AM3rd Oct

42AQI

Avg. Lowest Time
5AM3rd Oct

21AQI

In the last 24 hours,

Harstad's AQI reached its highest point of 42 at 1 AM during the Night, while the lowest point, 21, was recorded at 5 AM during the Night between 2nd Oct and 3rd Oct 2026.

Day & Night AQI Trend : Sep - Oct 2026

Harstad, Troms, 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 202646 AMAQI
4th Sep 202647 AMAQI
4th Sep 202668 AMAQI
4th Sep 202689 AMAQI
4th Sep 2026810 AMAQI
4th Sep 2026811 AMAQI
4th Sep 2026612 PMAQI
4th Sep 202681 PMAQI
4th Sep 202682 PMAQI
4th Sep 202683 PMAQI
4th Sep 202684 PMAQI
4th Sep 202685 PMAQI
4th Sep 2026126 PMAQI
4th Sep 202687 PMAQI
4th Sep 202668 PMAQI
4th Sep 202689 PMAQI
4th Sep 2026810 PMAQI
4th Sep 2026811 PMAQI
5th Sep 20261212 AMAQI
5th Sep 2026101 AMAQI
5th Sep 202662 AMAQI
5th Sep 2026103 AMAQI
5th Sep 202684 AMAQI
5th Sep 202685 AMAQI

9°C8/11°C

5th Sep 2026106 AMAQI
5th Sep 202667 AMAQI
5th Sep 202688 AMAQI
5th Sep 202689 AMAQI
5th Sep 20261010 AMAQI
5th Sep 2026811 AMAQI
5th Sep 2026812 PMAQI
5th Sep 202641 PMAQI
5th Sep 202662 PMAQI
5th Sep 202663 PMAQI
5th Sep 202644 PMAQI
5th Sep 202645 PMAQI
5th Sep 202666 PMAQI
5th Sep 202647 PMAQI
5th Sep 202648 PMAQI
5th Sep 202649 PMAQI
5th Sep 2026810 PMAQI
5th Sep 20261011 PMAQI
6th Sep 2026812 AMAQI
6th Sep 202681 AMAQI
6th Sep 202682 AMAQI
6th Sep 202683 AMAQI
6th Sep 202684 AMAQI
6th Sep 202685 AMAQI

8°C6/9°C

6th Sep 202666 AMAQI
6th Sep 202647 AMAQI
6th Sep 202648 AMAQI
6th Sep 202689 AMAQI
6th Sep 2026410 AMAQI
6th Sep 2026411 AMAQI
6th Sep 2026612 PMAQI
6th Sep 202681 PMAQI
6th Sep 202682 PMAQI
6th Sep 202683 PMAQI
6th Sep 202684 PMAQI
6th Sep 202685 PMAQI
6th Sep 202686 PMAQI
6th Sep 202667 PMAQI
6th Sep 2026108 PMAQI
6th Sep 2026129 PMAQI
6th Sep 20261210 PMAQI
6th Sep 20261211 PMAQI
7th Sep 20261212 AMAQI
7th Sep 202681 AMAQI
7th Sep 202642 AMAQI
7th Sep 202683 AMAQI
7th Sep 2026104 AMAQI
7th Sep 202645 AMAQI

6°C5/8°C

7th Sep 202666 AMAQI
7th Sep 202687 AMAQI
7th Sep 202688 AMAQI
7th Sep 202689 AMAQI
7th Sep 2026810 AMAQI
7th Sep 2026811 AMAQI
7th Sep 2026612 PMAQI
7th Sep 202661 PMAQI
7th Sep 202642 PMAQI
7th Sep 2026123 PMAQI
7th Sep 2026194 PMAQI
7th Sep 2026295 PMAQI
7th Sep 2026126 PMAQI
7th Sep 2026127 PMAQI
7th Sep 2026128 PMAQI
7th Sep 2026129 PMAQI
7th Sep 20261010 PMAQI
7th Sep 20261811 PMAQI
8th Sep 20262512 AMAQI
8th Sep 2026251 AMAQI
8th Sep 2026272 AMAQI
8th Sep 2026253 AMAQI
8th Sep 2026254 AMAQI
8th Sep 2026255 AMAQI

9°C7/12°C

8th Sep 2026106 AMAQI
8th Sep 2026127 AMAQI
8th Sep 2026178 AMAQI
8th Sep 2026199 AMAQI
8th Sep 20261910 AMAQI
8th Sep 20261911 AMAQI
8th Sep 20261712 PMAQI
8th Sep 2026141 PMAQI
8th Sep 2026172 PMAQI
8th Sep 2026173 PMAQI
8th Sep 2026144 PMAQI
8th Sep 2026175 PMAQI
8th Sep 2026146 PMAQI
8th Sep 2026147 PMAQI
8th Sep 2026218 PMAQI
8th Sep 2026219 PMAQI
8th Sep 20261910 PMAQI
8th Sep 20261911 PMAQI
9th Sep 20262112 AMAQI
9th Sep 2026141 AMAQI
9th Sep 2026172 AMAQI
9th Sep 2026173 AMAQI
9th Sep 2026144 AMAQI
9th Sep 2026145 AMAQI

10°C8/12°C

9th Sep 2026176 AMAQI
9th Sep 2026127 AMAQI
9th Sep 2026148 AMAQI
9th Sep 2026179 AMAQI
9th Sep 20261210 AMAQI
9th Sep 20261211 AMAQI
9th Sep 20261212 PMAQI
9th Sep 2026121 PMAQI
9th Sep 2026122 PMAQI
9th Sep 2026103 PMAQI
9th Sep 202684 PMAQI
9th Sep 202685 PMAQI
9th Sep 202686 PMAQI
9th Sep 202687 PMAQI
9th Sep 202688 PMAQI
9th Sep 202689 PMAQI
9th Sep 20261210 PMAQI
9th Sep 20261211 PMAQI
10th Sep 20261212 AMAQI
10th Sep 2026121 AMAQI
10th Sep 2026122 AMAQI
10th Sep 202683 AMAQI
10th Sep 202684 AMAQI
10th Sep 202685 AMAQI

9°C8/11°C

10th Sep 202686 AMAQI
10th Sep 202687 AMAQI
10th Sep 202688 AMAQI
10th Sep 202689 AMAQI
10th Sep 20261710 AMAQI
10th Sep 20261711 AMAQI
10th Sep 20261712 PMAQI
10th Sep 2026141 PMAQI
10th Sep 2026212 PMAQI
10th Sep 2026233 PMAQI
10th Sep 2026214 PMAQI
10th Sep 2026235 PMAQI
10th Sep 2026256 PMAQI
10th Sep 2026257 PMAQI
10th Sep 2026238 PMAQI
10th Sep 2026279 PMAQI
10th Sep 20262510 PMAQI
10th Sep 20262511 PMAQI
11th Sep 20262512 AMAQI
11th Sep 202681 AMAQI
11th Sep 2026122 AMAQI
11th Sep 2026103 AMAQI
11th Sep 202684 AMAQI
11th Sep 2026215 AMAQI

9°C7/12°C

11th Sep 2026216 AMAQI
11th Sep 2026177 AMAQI
11th Sep 2026128 AMAQI
11th Sep 2026149 AMAQI
11th Sep 20261010 AMAQI
11th Sep 20262511 AMAQI
11th Sep 20262512 PMAQI
11th Sep 2026251 PMAQI
11th Sep 2026192 PMAQI
11th Sep 2026213 PMAQI
11th Sep 2026214 PMAQI
11th Sep 2026215 PMAQI
11th Sep 2026216 PMAQI
11th Sep 2026147 PMAQI
11th Sep 202688 PMAQI
11th Sep 2026259 PMAQI
11th Sep 20262510 PMAQI
11th Sep 20262511 PMAQI
12th Sep 20262512 AMAQI
12th Sep 2026291 AMAQI
12th Sep 2026272 AMAQI
12th Sep 2026273 AMAQI
12th Sep 2026214 AMAQI
12th Sep 2026235 AMAQI

10°C7/13°C

12th Sep 2026216 AMAQI
12th Sep 2026217 AMAQI
12th Sep 2026258 AMAQI
12th Sep 2026259 AMAQI
12th Sep 20262710 AMAQI
12th Sep 20262711 AMAQI
12th Sep 20263312 PMAQI
12th Sep 2026271 PMAQI
12th Sep 2026342 PMAQI
12th Sep 2026293 PMAQI
12th Sep 2026254 PMAQI
12th Sep 2026275 PMAQI
12th Sep 2026276 PMAQI
12th Sep 2026257 PMAQI
12th Sep 2026218 PMAQI
12th Sep 2026339 PMAQI
12th Sep 20262111 PMAQI
13th Sep 20262112 AMAQI
13th Sep 2026211 AMAQI
13th Sep 2026212 AMAQI
13th Sep 2026213 AMAQI
13th Sep 2026214 AMAQI
13th Sep 2026215 AMAQI

11°C9/12°C

13th Sep 2026236 AMAQI
13th Sep 2026237 AMAQI
13th Sep 2026238 AMAQI
13th Sep 2026259 AMAQI
13th Sep 20262510 AMAQI
13th Sep 20262511 AMAQI
13th Sep 20261412 PMAQI
13th Sep 2026211 PMAQI
13th Sep 2026212 PMAQI
13th Sep 2026233 PMAQI
13th Sep 2026144 PMAQI
13th Sep 2026125 PMAQI
13th Sep 2026166 PMAQI
13th Sep 2026147 PMAQI
13th Sep 2026198 PMAQI
13th Sep 2026259 PMAQI
13th Sep 20262310 PMAQI
13th Sep 20261711 PMAQI
14th Sep 20261412 AMAQI
14th Sep 2026121 AMAQI
14th Sep 2026102 AMAQI
14th Sep 2026123 AMAQI
14th Sep 2026124 AMAQI
14th Sep 2026125 AMAQI

9°C7/11°C

14th Sep 2026126 AMAQI
14th Sep 202687 AMAQI
14th Sep 2026128 AMAQI
14th Sep 2026109 AMAQI
14th Sep 20261010 AMAQI
14th Sep 2026811 AMAQI
14th Sep 20261012 PMAQI
14th Sep 2026101 PMAQI
14th Sep 2026102 PMAQI
14th Sep 202683 PMAQI
14th Sep 202684 PMAQI
14th Sep 2026125 PMAQI
14th Sep 2026126 PMAQI
14th Sep 2026127 PMAQI
14th Sep 2026108 PMAQI
14th Sep 2026129 PMAQI
14th Sep 20261210 PMAQI
14th Sep 2026811 PMAQI
15th Sep 20261012 AMAQI
15th Sep 202681 AMAQI
15th Sep 2026102 AMAQI
15th Sep 202683 AMAQI
15th Sep 202684 AMAQI
15th Sep 202685 AMAQI

8°C7/10°C

15th Sep 202686 AMAQI
15th Sep 202687 AMAQI
15th Sep 2026128 AMAQI
15th Sep 2026129 AMAQI
15th Sep 20261410 AMAQI
15th Sep 20261211 AMAQI
15th Sep 20261412 PMAQI
15th Sep 2026141 PMAQI
15th Sep 2026122 PMAQI
15th Sep 2026123 PMAQI
15th Sep 2026124 PMAQI
15th Sep 2026125 PMAQI
15th Sep 2026146 PMAQI
15th Sep 2026177 PMAQI
15th Sep 2026218 PMAQI
15th Sep 2026259 PMAQI
15th Sep 20262510 PMAQI
15th Sep 20262311 PMAQI
16th Sep 20261912 AMAQI
16th Sep 2026191 AMAQI
16th Sep 2026212 AMAQI
16th Sep 2026193 AMAQI
16th Sep 2026174 AMAQI
16th Sep 2026195 AMAQI

10°C7/13°C

16th Sep 2026126 AMAQI
16th Sep 2026177 AMAQI
16th Sep 2026178 AMAQI
16th Sep 2026179 AMAQI
16th Sep 20261410 AMAQI
16th Sep 20261211 AMAQI
16th Sep 20261212 PMAQI
16th Sep 2026171 PMAQI
16th Sep 2026172 PMAQI
16th Sep 2026123 PMAQI
16th Sep 2026104 PMAQI
16th Sep 2026125 PMAQI
16th Sep 2026126 PMAQI
16th Sep 2026127 PMAQI
16th Sep 2026128 PMAQI
16th Sep 202689 PMAQI
16th Sep 2026810 PMAQI
16th Sep 2026811 PMAQI
17th Sep 2026612 AMAQI
17th Sep 202661 AMAQI
17th Sep 202682 AMAQI
17th Sep 202663 AMAQI
17th Sep 202684 AMAQI
17th Sep 202685 AMAQI

9°C9/11°C

17th Sep 202666 AMAQI
17th Sep 202647 AMAQI
17th Sep 202688 AMAQI
17th Sep 202669 AMAQI
17th Sep 2026610 AMAQI
17th Sep 2026611 AMAQI
17th Sep 2026612 PMAQI
17th Sep 202681 PMAQI
17th Sep 202682 PMAQI
17th Sep 202683 PMAQI
17th Sep 202684 PMAQI
17th Sep 202685 PMAQI
17th Sep 202686 PMAQI
17th Sep 202687 PMAQI
17th Sep 2026108 PMAQI
17th Sep 2026109 PMAQI
17th Sep 20262110 PMAQI
17th Sep 20261011 PMAQI
18th Sep 20261212 AMAQI
18th Sep 2026161 AMAQI
18th Sep 2026192 AMAQI
18th Sep 2026213 AMAQI
18th Sep 2026214 AMAQI
18th Sep 2026185 AMAQI

7°C6/9°C

18th Sep 2026126 AMAQI
18th Sep 2026127 AMAQI
18th Sep 2026128 AMAQI
18th Sep 2026149 AMAQI
18th Sep 20261210 AMAQI
18th Sep 20261411 AMAQI
18th Sep 20261612 PMAQI
18th Sep 2026211 PMAQI
18th Sep 2026102 PMAQI
18th Sep 2026103 PMAQI
18th Sep 202684 PMAQI
18th Sep 202685 PMAQI
18th Sep 2026126 PMAQI
18th Sep 2026147 PMAQI
18th Sep 2026218 PMAQI
18th Sep 2026259 PMAQI
18th Sep 20261810 PMAQI
18th Sep 20262311 PMAQI
19th Sep 20262512 AMAQI
19th Sep 2026231 AMAQI
19th Sep 2026252 AMAQI
19th Sep 2026193 AMAQI
19th Sep 2026194 AMAQI
19th Sep 2026175 AMAQI

6°C5/8°C

19th Sep 2026176 AMAQI
19th Sep 2026197 AMAQI
19th Sep 2026198 AMAQI
19th Sep 2026149 AMAQI
19th Sep 20261910 AMAQI
19th Sep 20261411 AMAQI
19th Sep 20261712 PMAQI
19th Sep 2026141 PMAQI
19th Sep 2026122 PMAQI
19th Sep 2026123 PMAQI
19th Sep 2026124 PMAQI
19th Sep 2026145 PMAQI
19th Sep 2026146 PMAQI
19th Sep 2026177 PMAQI
19th Sep 2026128 PMAQI
19th Sep 2026199 PMAQI
19th Sep 20262310 PMAQI
19th Sep 20262511 PMAQI
20th Sep 20262112 AMAQI
20th Sep 2026211 AMAQI
20th Sep 2026212 AMAQI
20th Sep 2026213 AMAQI
20th Sep 2026234 AMAQI
20th Sep 2026195 AMAQI

7°C5/10°C

20th Sep 2026166 AMAQI
20th Sep 2026127 AMAQI
20th Sep 2026178 AMAQI
20th Sep 2026219 AMAQI
20th Sep 20261910 AMAQI
20th Sep 20261911 AMAQI
20th Sep 20261912 PMAQI
20th Sep 2026191 PMAQI
20th Sep 2026192 PMAQI
20th Sep 2026173 PMAQI
20th Sep 2026144 PMAQI
20th Sep 2026175 PMAQI
20th Sep 2026176 PMAQI
20th Sep 2026147 PMAQI
20th Sep 2026148 PMAQI
20th Sep 2026179 PMAQI
20th Sep 20261410 PMAQI
20th Sep 20261211 PMAQI
21st Sep 20261012 AMAQI
21st Sep 2026101 AMAQI
21st Sep 202682 AMAQI
21st Sep 202683 AMAQI
21st Sep 2026104 AMAQI
21st Sep 202685 AMAQI

8°C6/10°C

21st Sep 202686 AMAQI
21st Sep 2026187 AMAQI
21st Sep 2026218 AMAQI
21st Sep 2026259 AMAQI
21st Sep 20261810 AMAQI
21st Sep 2026811 AMAQI
21st Sep 2026812 PMAQI
21st Sep 202681 PMAQI
21st Sep 202682 PMAQI
21st Sep 202683 PMAQI
21st Sep 202684 PMAQI
21st Sep 202665 PMAQI
21st Sep 202686 PMAQI
21st Sep 2026207 PMAQI
21st Sep 2026368 PMAQI
21st Sep 2026299 PMAQI
21st Sep 20262910 PMAQI
21st Sep 20262711 PMAQI
22nd Sep 20261712 AMAQI
22nd Sep 2026171 AMAQI
22nd Sep 202682 AMAQI
22nd Sep 202683 AMAQI
22nd Sep 2026124 AMAQI
22nd Sep 202685 AMAQI

7°C6/8°C

22nd Sep 202686 AMAQI
22nd Sep 202687 AMAQI
22nd Sep 2026128 AMAQI
22nd Sep 2026129 AMAQI
22nd Sep 20261210 AMAQI
22nd Sep 20261211 AMAQI
22nd Sep 20261212 PMAQI
22nd Sep 202661 PMAQI
22nd Sep 202682 PMAQI
22nd Sep 202683 PMAQI
22nd Sep 202684 PMAQI
22nd Sep 202665 PMAQI
22nd Sep 2026126 PMAQI
22nd Sep 202647 PMAQI
22nd Sep 2026108 PMAQI
22nd Sep 2026109 PMAQI
22nd Sep 20261010 PMAQI
22nd Sep 20261211 PMAQI
23rd Sep 20261212 AMAQI
23rd Sep 2026251 AMAQI
23rd Sep 2026252 AMAQI
23rd Sep 2026273 AMAQI
23rd Sep 2026274 AMAQI
23rd Sep 2026165 AMAQI

8°C6/10°C

23rd Sep 2026126 AMAQI
23rd Sep 2026147 AMAQI
23rd Sep 2026148 AMAQI
23rd Sep 2026179 AMAQI
23rd Sep 20261710 AMAQI
23rd Sep 20261911 AMAQI
23rd Sep 20261912 PMAQI
23rd Sep 2026191 PMAQI
23rd Sep 2026232 PMAQI
23rd Sep 2026213 PMAQI
23rd Sep 2026214 PMAQI
23rd Sep 2026235 PMAQI
23rd Sep 2026256 PMAQI
23rd Sep 2026277 PMAQI
23rd Sep 2026278 PMAQI
23rd Sep 2026299 PMAQI
23rd Sep 20263110 PMAQI
23rd Sep 20262511 PMAQI
24th Sep 20262912 AMAQI
24th Sep 2026271 AMAQI
24th Sep 2026212 AMAQI
24th Sep 2026303 AMAQI
24th Sep 2026254 AMAQI
24th Sep 2026255 AMAQI

9°C8/10°C

24th Sep 2026276 AMAQI
24th Sep 2026217 AMAQI
24th Sep 2026218 AMAQI
24th Sep 2026219 AMAQI
24th Sep 20262110 AMAQI
24th Sep 20262311 AMAQI
24th Sep 20262112 PMAQI
24th Sep 2026211 PMAQI
24th Sep 2026212 PMAQI
24th Sep 2026233 PMAQI
24th Sep 2026214 PMAQI
24th Sep 2026215 PMAQI
24th Sep 2026236 PMAQI
24th Sep 2026237 PMAQI
24th Sep 2026258 PMAQI
24th Sep 2026259 PMAQI
24th Sep 20262510 PMAQI
24th Sep 20262311 PMAQI
25th Sep 20262312 AMAQI
25th Sep 2026211 AMAQI
25th Sep 2026252 AMAQI
25th Sep 2026163 AMAQI
25th Sep 2026124 AMAQI
25th Sep 2026215 AMAQI

8°C7/9°C

25th Sep 2026176 AMAQI
25th Sep 2026167 AMAQI
25th Sep 2026148 AMAQI
25th Sep 2026129 AMAQI
25th Sep 20261710 AMAQI
25th Sep 20261011 AMAQI
25th Sep 2026812 PMAQI
25th Sep 2026121 PMAQI
25th Sep 2026192 PMAQI
25th Sep 2026143 PMAQI
25th Sep 2026234 PMAQI
25th Sep 2026185 PMAQI
25th Sep 2026166 PMAQI
25th Sep 2026237 PMAQI
25th Sep 2026258 PMAQI
25th Sep 2026259 PMAQI
25th Sep 20262310 PMAQI
25th Sep 20262311 PMAQI
26th Sep 20262512 AMAQI
26th Sep 2026251 AMAQI
26th Sep 2026182 AMAQI
26th Sep 2026183 AMAQI
26th Sep 2026254 AMAQI
26th Sep 2026215 AMAQI

7°C6/9°C

26th Sep 2026236 AMAQI
26th Sep 2026197 AMAQI
26th Sep 2026198 AMAQI
26th Sep 2026199 AMAQI
26th Sep 20262110 AMAQI
26th Sep 20262111 AMAQI
26th Sep 20262112 PMAQI
26th Sep 2026141 PMAQI
26th Sep 2026172 PMAQI
26th Sep 2026173 PMAQI
26th Sep 202684 PMAQI
26th Sep 202685 PMAQI
26th Sep 2026106 PMAQI
26th Sep 2026107 PMAQI
26th Sep 2026108 PMAQI
26th Sep 2026149 PMAQI
26th Sep 20262110 PMAQI
26th Sep 20262111 PMAQI
27th Sep 20261912 AMAQI
27th Sep 2026211 AMAQI
27th Sep 2026212 AMAQI
27th Sep 2026193 AMAQI
27th Sep 2026194 AMAQI
27th Sep 2026145 AMAQI

8°C7/10°C

27th Sep 2026216 AMAQI
27th Sep 2026197 AMAQI
27th Sep 2026198 AMAQI
27th Sep 2026149 AMAQI
27th Sep 20261210 AMAQI
27th Sep 20261711 AMAQI
27th Sep 20261912 PMAQI
27th Sep 2026191 PMAQI
27th Sep 2026192 PMAQI
27th Sep 2026173 PMAQI
27th Sep 2026174 PMAQI
27th Sep 2026125 PMAQI
27th Sep 2026176 PMAQI
27th Sep 2026177 PMAQI
27th Sep 2026148 PMAQI
27th Sep 2026149 PMAQI
27th Sep 20261410 PMAQI
27th Sep 20261411 PMAQI
28th Sep 20261712 AMAQI
28th Sep 2026141 AMAQI
28th Sep 2026142 AMAQI
28th Sep 2026173 AMAQI
28th Sep 2026174 AMAQI
28th Sep 2026125 AMAQI

8°C6/10°C

28th Sep 2026126 AMAQI
28th Sep 2026127 AMAQI
28th Sep 2026108 AMAQI
28th Sep 2026149 AMAQI
28th Sep 20262510 AMAQI
28th Sep 20262511 AMAQI
28th Sep 20262312 PMAQI
28th Sep 2026251 PMAQI
28th Sep 2026252 PMAQI
28th Sep 2026253 PMAQI
28th Sep 2026174 PMAQI
28th Sep 2026215 PMAQI
28th Sep 2026256 PMAQI
28th Sep 2026237 PMAQI
28th Sep 2026258 PMAQI
28th Sep 2026259 PMAQI
28th Sep 20262310 PMAQI
28th Sep 20262311 PMAQI
29th Sep 20262112 AMAQI
29th Sep 2026211 AMAQI
29th Sep 2026252 AMAQI
29th Sep 2026253 AMAQI
29th Sep 2026254 AMAQI
29th Sep 2026235 AMAQI

9°C9/11°C

29th Sep 2026196 AMAQI
29th Sep 2026177 AMAQI
29th Sep 2026218 AMAQI
29th Sep 2026179 AMAQI
29th Sep 20261710 AMAQI
29th Sep 20261711 AMAQI
29th Sep 20261212 PMAQI
29th Sep 2026141 PMAQI
29th Sep 2026142 PMAQI
29th Sep 2026143 PMAQI
29th Sep 2026124 PMAQI
29th Sep 2026175 PMAQI
29th Sep 2026176 PMAQI
29th Sep 2026147 PMAQI
29th Sep 2026148 PMAQI
29th Sep 2026149 PMAQI
29th Sep 20261410 PMAQI
29th Sep 20261211 PMAQI
30th Sep 20261212 AMAQI
30th Sep 2026141 AMAQI
30th Sep 2026172 AMAQI
30th Sep 2026143 AMAQI
30th Sep 2026124 AMAQI
30th Sep 2026145 AMAQI

9°C8/10°C

30th Sep 2026126 AMAQI
30th Sep 2026127 AMAQI
30th Sep 2026128 AMAQI
30th Sep 2026129 AMAQI
30th Sep 20261210 AMAQI
30th Sep 20261211 AMAQI
30th Sep 20261212 PMAQI
30th Sep 2026121 PMAQI
30th Sep 2026122 PMAQI
30th Sep 2026123 PMAQI
30th Sep 2026144 PMAQI
30th Sep 2026145 PMAQI
30th Sep 2026216 PMAQI
30th Sep 2026177 PMAQI
30th Sep 2026178 PMAQI
30th Sep 2026219 PMAQI
30th Sep 20262310 PMAQI
30th Sep 20262311 PMAQI
1st Oct 20262512 AMAQI
1st Oct 2026231 AMAQI
1st Oct 2026252 AMAQI
1st Oct 2026193 AMAQI
1st Oct 2026214 AMAQI
1st Oct 2026195 AMAQI

9°C7/10°C

1st Oct 2026176 AMAQI
1st Oct 2026177 AMAQI
1st Oct 2026198 AMAQI
1st Oct 2026239 AMAQI
1st Oct 20262310 AMAQI
1st Oct 20262311 AMAQI
1st Oct 20262112 PMAQI
1st Oct 2026171 PMAQI
1st Oct 2026192 PMAQI
1st Oct 2026253 PMAQI
1st Oct 2026214 PMAQI
1st Oct 2026195 PMAQI
1st Oct 2026236 PMAQI
1st Oct 2026297 PMAQI
1st Oct 2026318 PMAQI
1st Oct 2026299 PMAQI
1st Oct 20263110 PMAQI
1st Oct 20262511 PMAQI
2nd Oct 20262512 AMAQI
2nd Oct 2026341 AMAQI
2nd Oct 2026382 AMAQI
2nd Oct 2026423 AMAQI
2nd Oct 2026314 AMAQI
2nd Oct 2026275 AMAQI

11°C8/13°C

2nd Oct 2026276 AMAQI
2nd Oct 2026297 AMAQI
2nd Oct 2026298 AMAQI
2nd Oct 2026279 AMAQI
2nd Oct 20262910 AMAQI
2nd Oct 20263111 AMAQI
2nd Oct 20263612 PMAQI
2nd Oct 2026341 PMAQI
2nd Oct 2026232 PMAQI
2nd Oct 2026343 PMAQI
2nd Oct 2026214 PMAQI
2nd Oct 2026325 PMAQI
2nd Oct 2026236 PMAQI
2nd Oct 2026217 PMAQI
2nd Oct 2026238 PMAQI
2nd Oct 2026239 PMAQI
2nd Oct 20262510 PMAQI
2nd Oct 20262511 PMAQI
3rd Oct 20263812 AMAQI
3rd Oct 2026421 AMAQI
3rd Oct 2026362 AMAQI
3rd Oct 2026293 AMAQI
3rd Oct 2026234 AMAQI
3rd Oct 2026215 AMAQI

11°C9/13°C

3rd Oct 2026216 AMAQI
6 AM
3rd Oct 2026217 AMAQI
3rd Oct 2026258 AMAQI
3rd Oct 2026259 AMAQI
3rd Oct 20262510 AMAQI
3rd Oct 20262511 AMAQI
3rd Oct 20262112 PMAQI
12 PM
3rd Oct 2026231 PMAQI
3rd Oct 2026252 PMAQI
3rd Oct 2026213 PMAQI
3rd Oct 2026234 PMAQI
3rd Oct 2026255 PMAQI
3rd Oct 2026236 PMAQI
3rd Oct 2026237 PMAQI
7 PM
3rd Oct 2026238 PMAQI
3rd Oct 2026429 PMAQI
3rd Oct 20263410 PMAQI
3rd Oct 20263411 PMAQI
12 AM
5 AM

10°C8/12°C

Day time
Avg. Highest Time
9 AM - 3 PM

16AQI

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

14AQI

2 hours / Day
60 hours / Month
In the last 30 days, during the daytime, the highest AQI was between 9 AM to 3 PM (Avg. 16), while the lowest AQI was between 6 AM to 7 AM (Avg. 14).
Night time
Avg. Highest Time
9 PM - 10 PM

20AQI

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

16AQI

1 hours / Day
30 hours / Month
In the last 30 days, during the daytime, the highest AQI was between 9 PM to 10 PM (Avg. 20), while the lowest AQI was between 5 AM to 5 AM (Avg. 16).

2026 Days Vs Air Quality

Harstad, Troms, Norway

2026

99%

271

0.7%

2

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

Good
271 Days
Moderate
2 Days
Poor
0 Days
Unhealthy
0 Days
Severe
0 Days
Hazardous
0 Days

Under WHO’s Safe Air Quality Limits: 99%

Health Risk Level:

Very Low

In 2026, 99% 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

Harstad, Troms, 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
26AQI (US)
2nd January 2026
31AQI (US)
3rd January 2026
28AQI (US)
4th January 2026
32AQI (US)
5th January 2026
12AQI (US)
6th January 2026
32AQI (US)
7th January 2026
40AQI (US)
8th January 2026
21AQI (US)
9th January 2026
22AQI (US)
10th January 2026
26AQI (US)
11th January 2026
31AQI (US)
12th January 2026
12AQI (US)
13th January 2026
14AQI (US)
14th January 2026
23AQI (US)
15th January 2026
18AQI (US)
16th January 2026
19AQI (US)
17th January 2026
30AQI (US)
18th January 2026
19AQI (US)
19th January 2026
24AQI (US)
20th January 2026
33AQI (US)
21st January 2026
34AQI (US)
22nd January 2026
34AQI (US)
23rd January 2026
34AQI (US)
24th January 2026
47AQI (US)
25th January 2026
16AQI (US)
26th January 2026
18AQI (US)
27th January 2026
23AQI (US)
28th January 2026
25AQI (US)
29th January 2026
41AQI (US)
30th January 2026
41AQI (US)
31st January 2026
7AQI (US)
1st February 2026
17AQI (US)
2nd February 2026
39AQI (US)
3rd February 2026
36AQI (US)
4th February 2026
30AQI (US)
5th February 2026
28AQI (US)
6th February 2026
49AQI (US)
7th February 2026
43AQI (US)
8th February 2026
33AQI (US)
9th February 2026
11AQI (US)
10th February 2026
22AQI (US)
11th February 2026
25AQI (US)
12th February 2026
31AQI (US)
13th February 2026
19AQI (US)
14th February 2026
13AQI (US)
15th February 2026
17AQI (US)
16th February 2026
25AQI (US)
17th February 2026
13AQI (US)
18th February 2026
18AQI (US)
19th February 2026
18AQI (US)
20th February 2026
16AQI (US)
21st February 2026
16AQI (US)
22nd February 2026
27AQI (US)
23rd February 2026
28AQI (US)
24th February 2026
30AQI (US)
25th February 2026
19AQI (US)
26th February 2026
18AQI (US)
27th February 2026
28AQI (US)
28th February 2026
28AQI (US)
1st March 2026
35AQI (US)
2nd March 2026
39AQI (US)
3rd March 2026
36AQI (US)
4th March 2026
28AQI (US)
5th March 2026
30AQI (US)
6th March 2026
23AQI (US)
7th March 2026
17AQI (US)
8th March 2026
13AQI (US)
9th March 2026
26AQI (US)
10th March 2026
26AQI (US)
11th March 2026
31AQI (US)
12th March 2026
25AQI (US)
13th March 2026
10AQI (US)
14th March 2026
13AQI (US)
15th March 2026
18AQI (US)
16th March 2026
35AQI (US)
17th March 2026
15AQI (US)
18th March 2026
10AQI (US)
19th March 2026
21AQI (US)
20th March 2026
32AQI (US)
21st March 2026
32AQI (US)
22nd March 2026
27AQI (US)
23rd March 2026
35AQI (US)
24th March 2026
20AQI (US)
25th March 2026
23AQI (US)
26th March 2026
31AQI (US)
27th March 2026
18AQI (US)
28th March 2026
12AQI (US)
29th March 2026
16AQI (US)
30th March 2026
33AQI (US)
31st March 2026
14AQI (US)
1st April 2026
15AQI (US)
2nd April 2026
13AQI (US)
3rd April 2026
18AQI (US)
4th April 2026
26AQI (US)
5th April 2026
15AQI (US)
6th April 2026
26AQI (US)
7th April 2026
44AQI (US)
8th April 2026
50AQI (US)
9th April 2026
48AQI (US)
10th April 2026
58AQI (US)
11th April 2026
43AQI (US)
12th April 2026
35AQI (US)
13th April 2026
49AQI (US)
14th April 2026
48AQI (US)
15th April 2026
59AQI (US)
16th April 2026
41AQI (US)
17th April 2026
18th April 2026
26AQI (US)
19th April 2026
22AQI (US)
20th April 2026
38AQI (US)
21st April 2026
31AQI (US)
22nd April 2026
23rd April 2026
21AQI (US)
24th April 2026
12AQI (US)
25th April 2026
16AQI (US)
26th April 2026
19AQI (US)
27th April 2026
21AQI (US)
28th April 2026
13AQI (US)
29th April 2026
15AQI (US)
30th April 2026
11AQI (US)
1st May 2026
16AQI (US)
2nd May 2026
16AQI (US)
3rd May 2026
16AQI (US)
4th May 2026
19AQI (US)
5th May 2026
18AQI (US)
6th May 2026
16AQI (US)
7th May 2026
15AQI (US)
8th May 2026
17AQI (US)
9th May 2026
10th May 2026
14AQI (US)
11th May 2026
17AQI (US)
12th May 2026
12AQI (US)
13th May 2026
13AQI (US)
14th May 2026
14AQI (US)
15th May 2026
21AQI (US)
16th May 2026
36AQI (US)
17th May 2026
40AQI (US)
18th May 2026
34AQI (US)
19th May 2026
33AQI (US)
20th May 2026
32AQI (US)
21st May 2026
36AQI (US)
22nd May 2026
33AQI (US)
23rd May 2026
39AQI (US)
24th May 2026
50AQI (US)
25th May 2026
43AQI (US)
26th May 2026
28AQI (US)
27th May 2026
11AQI (US)
28th May 2026
18AQI (US)
29th May 2026
17AQI (US)
30th May 2026
12AQI (US)
31st May 2026
19AQI (US)
1st June 2026
23AQI (US)
2nd June 2026
27AQI (US)
3rd June 2026
34AQI (US)
4th June 2026
25AQI (US)
5th June 2026
19AQI (US)
6th June 2026
10AQI (US)
7th June 2026
11AQI (US)
8th June 2026
15AQI (US)
9th June 2026
19AQI (US)
10th June 2026
19AQI (US)
11th June 2026
8AQI (US)
12th June 2026
12AQI (US)
13th June 2026
19AQI (US)
14th June 2026
14AQI (US)
15th June 2026
15AQI (US)
16th June 2026
20AQI (US)
17th June 2026
17AQI (US)
18th June 2026
16AQI (US)
19th June 2026
19AQI (US)
20th June 2026
20AQI (US)
21st June 2026
19AQI (US)
22nd June 2026
17AQI (US)
23rd June 2026
16AQI (US)
24th June 2026
16AQI (US)
25th June 2026
19AQI (US)
26th June 2026
23AQI (US)
27th June 2026
24AQI (US)
28th June 2026
21AQI (US)
29th June 2026
22AQI (US)
30th June 2026
11AQI (US)
1st July 2026
12AQI (US)
2nd July 2026
21AQI (US)
3rd July 2026
23AQI (US)
4th July 2026
16AQI (US)
5th July 2026
14AQI (US)
6th July 2026
19AQI (US)
7th July 2026
12AQI (US)
8th July 2026
13AQI (US)
9th July 2026
18AQI (US)
10th July 2026
21AQI (US)
11th July 2026
21AQI (US)
12th July 2026
20AQI (US)
13th July 2026
22AQI (US)
14th July 2026
20AQI (US)
15th July 2026
19AQI (US)
16th July 2026
22AQI (US)
17th July 2026
39AQI (US)
18th July 2026
21AQI (US)
19th July 2026
12AQI (US)
20th July 2026
16AQI (US)
21st July 2026
21AQI (US)
22nd July 2026
21AQI (US)
23rd July 2026
15AQI (US)
24th July 2026
22AQI (US)
25th July 2026
24AQI (US)
26th July 2026
22AQI (US)
27th July 2026
23AQI (US)
28th July 2026
26AQI (US)
29th July 2026
10AQI (US)
30th July 2026
15AQI (US)
31st July 2026
17AQI (US)
1st August 2026
10AQI (US)
2nd August 2026
9AQI (US)
3rd August 2026
9AQI (US)
4th August 2026
6AQI (US)
5th August 2026
18AQI (US)
6th August 2026
10AQI (US)
7th August 2026
10AQI (US)
8th August 2026
6AQI (US)
9th August 2026
9AQI (US)
10th August 2026
15AQI (US)
11th August 2026
6AQI (US)
12th August 2026
5AQI (US)
13th August 2026
12AQI (US)
14th August 2026
19AQI (US)
15th August 2026
21AQI (US)
16th August 2026
10AQI (US)
17th August 2026
8AQI (US)
18th August 2026
7AQI (US)
19th August 2026
9AQI (US)
20th August 2026
12AQI (US)
21st August 2026
19AQI (US)
22nd August 2026
16AQI (US)
23rd August 2026
12AQI (US)
24th August 2026
13AQI (US)
25th August 2026
19AQI (US)
26th August 2026
14AQI (US)
27th August 2026
13AQI (US)
28th August 2026
22AQI (US)
29th August 2026
22AQI (US)
30th August 2026
15AQI (US)
31st August 2026
12AQI (US)
1st September 2026
9AQI (US)
2nd September 2026
8AQI (US)
3rd September 2026
8AQI (US)
4th September 2026
9AQI (US)
5th September 2026
7AQI (US)
6th September 2026
8AQI (US)
7th September 2026
10AQI (US)
8th September 2026
19AQI (US)
9th September 2026
12AQI (US)
10th September 2026
16AQI (US)
11th September 2026
18AQI (US)
12th September 2026
26AQI (US)
13th September 2026
20AQI (US)
14th September 2026
11AQI (US)
15th September 2026
13AQI (US)
16th September 2026
14AQI (US)
17th September 2026
8AQI (US)
18th September 2026
15AQI (US)
19th September 2026
18AQI (US)
20th September 2026
18AQI (US)
21st September 2026
14AQI (US)
22nd September 2026
10AQI (US)
23rd September 2026
21AQI (US)
24th September 2026
23AQI (US)
25th September 2026
18AQI (US)
26th September 2026
18AQI (US)
27th September 2026
17AQI (US)
28th September 2026
20AQI (US)
29th September 2026
17AQI (US)
30th September 2026
15AQI (US)
1st October 2026
23AQI (US)
2nd October 2026
29AQI (US)
3rd October 2026
27AQI (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

26AQI (US)

25AQI (US)

24AQI (US)

30AQI (US)

24AQI (US)

18AQI (US)

19AQI (US)

13AQI (US)

15AQI (US)

26AQI (US)

No. of days

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

202621AQI (US)

31
28
31
26
2
30
30
31
31
30
3
271
2

Highest AQI (US) recorded in

April

30AQI (US)

Lowest AQI (US) recorded in

August

13AQI (US)

202525AQI (US)

31
28
31
30
31
30
31
31
30
31
30
31
365

Highest AQI (US) recorded in

October

35AQI (US)

Lowest AQI (US) recorded in

September

19AQI (US)

202422AQI (US)

26
4
29
31
26
4
27
4
30
31
30
29
1
31
30
31
351
13

Highest AQI (US) recorded in

April

32AQI (US)

Lowest AQI (US) recorded in

October

13AQI (US)

202322AQI (US)

30
27
1
31
20
4
31
14
4
31
31
28
31
28
1
30
1
332
11

Highest AQI (US) recorded in

April

34AQI (US)

Lowest AQI (US) recorded in

September

13AQI (US)

202222AQI (US)

28
2
21
2
27
29
1
28
1
1
28
2
4
1
3
29
30
1
27
3
28
3
282
16
1

Highest AQI (US) recorded in

November

29AQI (US)

Lowest AQI (US) recorded in

September

14AQI (US)

202120AQI (US)

19
1
1
13
31
26
4
31
30
29
2
31
30
31
29
1
24
7
324
15
1

Highest AQI (US) recorded in

December

33AQI (US)

Lowest AQI (US) recorded in

September

12AQI (US)

202017AQI (US)

13
21
18
30
31
31
29
1
25
6
27
1
29
1
1
254
9
1

Highest AQI (US) recorded in

October

29AQI (US)

Lowest AQI (US) recorded in

March

9AQI (US)

Most & Least Polluted Years Over the Last 7 Years

Most Polluted Year Recorded
2025(Avg.)
25AQI (US)
Least Polluted Year Recorded
2020(Avg.)
17AQI (US)

Harstad's annual 2026 AQI (US) (21) shows an average percentage change of -0.1% (improved AQI (US)) compared to previous years: 2020 (17), 2021 (20), 2022 (22), 2023 (22), 2024 (22), 2025 (25).