Tonsberg, Vestfold, Norway Historical Air Quality Analysis
Dive into detailed Air Quality Insights with historical data, monthly patterns, and yearly trends at your fingertips!
October Air Quality Analysis
Tonsberg, Vestfold, Norway
AQI Trends: Highest and Lowest
Same Day Analysis (3rd October ):
On this day, AQI across the 5 years varied significantly: 2025 ranks 1st highest AQI at 46 of Good air quality on the same day.
Download 2024 Annual Data
World Air Quality Report

Day & Night AQI Trend: 4th Oct - 5th Oct 2025
Tonsberg, Vestfold, Norway
6 AM4th Oct 2025
7 PM
5 AM5th Oct 2025
60AQI
38AQI
49AQI
13AQI
In the last 24 hours,
Tonsberg's AQI reached its highest point of 60 at 2 PM during the Day, while the lowest point, 13, was recorded at 2 AM during the Night between 4th Oct and 5th Oct 2025.
Day & Night AQI Trend : Sep - Oct 2025
Tonsberg, Vestfold, Norway
15°C14/17°C
15°C13/18°C
15°C13/18°C
15°C12/18°C
16°C13/19°C
17°C15/19°C
15°C14/16°C
14°C13/16°C
13°C12/14°C
13°C12/14°C
12°C11/15°C
14°C12/16°C
14°C11/17°C
14°C11/18°C
16°C14/18°C
16°C16/17°C
13°C10/15°C
11°C8/14°C
9°C6/13°C
9°C6/13°C
11°C7/14°C
11°C8/14°C
11°C9/14°C
12°C10/15°C
12°C11/14°C
11°C9/12°C
10°C9/12°C
11°C9/13°C
12°C11/13°C
11°C9/12°C
--°C/°C
24AQI
21AQI
25AQI
21AQI
2025 Days Vs Air Quality
Tonsberg, Vestfold, Norway
96%
264
4%
12
Total number of days with different AQI categories in last 278 days in 2025 (87 days remaining)
Under WHO’s Safe Air Quality Limits: 96%
Health Risk Level:
Very Low
In 2025, 96% of 278 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
Tonsberg, Vestfold, Norway
AQI levels in 2025
Jan.
Feb.
Mar.
Apr.
May
Jun.
Jul.
Aug.
Sep.
Oct.
Nov.
Dec.
22AQI
29AQI
33AQI
58AQI
48AQI
23AQI
22AQI
27AQI
27AQI
27AQI
26AQI
39AQI
47AQI
34AQI
46AQI
39AQI
46AQI
33AQI
33AQI
35AQI
28AQI
35AQI
24AQI
30AQI
44AQI
34AQI
25AQI
27AQI
22AQI
25AQI
34AQI
38AQI
43AQI
48AQI
51AQI
33AQI
42AQI
40AQI
35AQI
38AQI
30AQI
30AQI
40AQI
39AQI
49AQI
65AQI
53AQI
72AQI
63AQI
56AQI
52AQI
64AQI
80AQI
39AQI
36AQI
24AQI
25AQI
25AQI
29AQI
32AQI
23AQI
25AQI
28AQI
37AQI
36AQI
76AQI
49AQI
30AQI
32AQI
21AQI
21AQI
32AQI
44AQI
30AQI
34AQI
37AQI
40AQI
43AQI
48AQI
44AQI
33AQI
38AQI
43AQI
46AQI
33AQI
33AQI
48AQI
26AQI
18AQI
25AQI
33AQI
36AQI
43AQI
26AQI
19AQI
21AQI
25AQI
24AQI
29AQI
25AQI
26AQI
20AQI
34AQI
26AQI
37AQI
37AQI
56AQI
19AQI
16AQI
12AQI
13AQI
13AQI
15AQI
16AQI
21AQI
15AQI
23AQI
33AQI
17AQI
14AQI
26AQI
21AQI
13AQI
14AQI
15AQI
15AQI
15AQI
23AQI
22AQI
35AQI
25AQI
33AQI
22AQI
20AQI
16AQI
15AQI
16AQI
16AQI
16AQI
19AQI
14AQI
13AQI
12AQI
21AQI
21AQI
22AQI
24AQI
20AQI
15AQI
16AQI
12AQI
20AQI
16AQI
19AQI
26AQI
22AQI
17AQI
16AQI
17AQI
15AQI
27AQI
28AQI
23AQI
23AQI
21AQI
27AQI
32AQI
32AQI
25AQI
18AQI
17AQI
17AQI
11AQI
26AQI
19AQI
17AQI
24AQI
19AQI
20AQI
20AQI
17AQI
35AQI
35AQI
22AQI
19AQI
18AQI
18AQI
19AQI
19AQI
20AQI
27AQI
26AQI
28AQI
29AQI
33AQI
36AQI
35AQI
38AQI
42AQI
46AQI
49AQI
42AQI
39AQI
37AQI
39AQI
47AQI
43AQI
37AQI
29AQI
22AQI
18AQI
30AQI
27AQI
28AQI
24AQI
23AQI
22AQI
20AQI
19AQI
28AQI
23AQI
21AQI
18AQI
21AQI
23AQI
34AQI
41AQI
17AQI
13AQI
17AQI
20AQI
13AQI
12AQI
13AQI
13AQI
14AQI
13AQI
15AQI
24AQI
27AQI
35AQI
37AQI
24AQI
25AQI
19AQI
21AQI
27AQI
23AQI
20AQI
22AQI
22AQI
31AQI
42AQI
36AQI
19AQI
16AQI
16AQI
16AQI
16AQI
15AQI
18AQI
21AQI
21AQI
16AQI
13AQI
13AQI
14AQI
18AQI
22AQI
14AQI
18AQI
20AQI
30AQI
29AQI
40AQI
46AQI
33AQI
44AQI
36AQI
25AQI
19AQI
21AQI
32AQI
22AQI
21AQI
38AQI
No. of days
202528AQI
Highest AQI recorded in
February44AQI
Lowest AQI recorded in
May19AQI
202426AQI
Highest AQI recorded in
January38AQI
Lowest AQI recorded in
July14AQI
202325AQI
Highest AQI recorded in
February37AQI
Lowest AQI recorded in
October13AQI
202228AQI
Highest AQI recorded in
March54AQI
Lowest AQI recorded in
August9AQI
202128AQI
Highest AQI recorded in
February45AQI
Lowest AQI recorded in
April18AQI
202024AQI
Highest AQI recorded in
March41AQI
Lowest AQI recorded in
July14AQI
Most & Least Polluted Years Over the Last 6 Years
Tonsberg's annual 2025 AQI (28) shows an average percentage change of 7.3% (worsened AQI) compared to previous years: 2020 (24), 2021 (28), 2022 (28), 2023 (25), 2024 (26).