Sarpsborg, Ostfold, Norway Historical Air Quality Analysis
Dive into detailed Air Quality Insights with historical data, monthly patterns, and yearly trends at your fingertips!
September Air Quality Analysis
Sarpsborg, Ostfold, Norway
AQI Trends: Highest and Lowest
Same Day Analysis (25th September):
On this day, AQI across the 5 years varied significantly: 2026 ranks 4th highest AQI at 21 of Good air quality, showing improvement over 2025, 2024 and 2023 on the same day.
Day & Night AQI Trend: 25th Sep - 26th Sep 2026
Sarpsborg, Ostfold, Norway
6 AM25th Sep 2026
7 PM
5 AM26th Sep 2026
27AQI
18AQI
28AQI
17AQI
In the last 24 hours,
Sarpsborg's AQI reached its highest point of 28 at 9 PM during the Night, while the lowest point, 17, was recorded at 6 AM during the Night between 25th Sep and 26th Sep 2026.
Day & Night AQI Trend : Aug - Sep 2026
Sarpsborg, Ostfold, Norway
16°C13/21°C
16°C14/19°C
16°C15/18°C
16°C14/18°C
16°C13/19°C
16°C12/19°C
13°C10/16°C
12°C9/15°C
11°C8/16°C
14°C10/18°C
16°C13/18°C
15°C14/16°C
14°C9/18°C
12°C7/17°C
13°C12/15°C
13°C12/15°C
14°C11/19°C
13°C11/15°C
14°C12/16°C
15°C12/18°C
13°C12/15°C
13°C12/16°C
14°C12/16°C
13°C12/16°C
13°C10/17°C
11°C7/14°C
12°C9/15°C
13°C12/14°C
14°C12/15°C
13°C11/17°C
25AQI
22AQI
24AQI
22AQI
2026 Days Vs Air Quality
Sarpsborg, Ostfold, Norway
95%
252
5%
13
Total number of days with different AQI categories in last 269 days in 2026 (96 days remaining)
Under WHO’s Safe Air Quality Limits: 95%
Health Risk Level:
Very Low
In 2026, 95% of 269 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
Sarpsborg, Ostfold, Norway
AQI levels in 2026
Jan.
Feb.
Mar.
Apr.
May
Jun.
Jul.
Aug.
Sep.
Oct.
Nov.
Dec.
19AQI (US)
13AQI (US)
12AQI (US)
17AQI (US)
18AQI (US)
23AQI (US)
32AQI (US)
56AQI (US)
37AQI (US)
27AQI (US)
79AQI (US)
47AQI (US)
30AQI (US)
28AQI (US)
70AQI (US)
27AQI (US)
38AQI (US)
32AQI (US)
41AQI (US)
51AQI (US)
28AQI (US)
26AQI (US)
45AQI (US)
50AQI (US)
48AQI (US)
40AQI (US)
33AQI (US)
37AQI (US)
35AQI (US)
45AQI (US)
43AQI (US)
28AQI (US)
17AQI (US)
43AQI (US)
38AQI (US)
45AQI (US)
47AQI (US)
11AQI (US)
15AQI (US)
43AQI (US)
46AQI (US)
34AQI (US)
15AQI (US)
31AQI (US)
50AQI (US)
40AQI (US)
20AQI (US)
32AQI (US)
57AQI (US)
64AQI (US)
24AQI (US)
36AQI (US)
55AQI (US)
26AQI (US)
17AQI (US)
23AQI (US)
31AQI (US)
29AQI (US)
28AQI (US)
26AQI (US)
36AQI (US)
35AQI (US)
30AQI (US)
40AQI (US)
64AQI (US)
71AQI (US)
64AQI (US)
31AQI (US)
58AQI (US)
41AQI (US)
25AQI (US)
33AQI (US)
33AQI (US)
17AQI (US)
33AQI (US)
30AQI (US)
39AQI (US)
34AQI (US)
36AQI (US)
19AQI (US)
43AQI (US)
45AQI (US)
46AQI (US)
14AQI (US)
26AQI (US)
28AQI (US)
25AQI (US)
25AQI (US)
13AQI (US)
24AQI (US)
26AQI (US)
22AQI (US)
16AQI (US)
21AQI (US)
29AQI (US)
16AQI (US)
26AQI (US)
34AQI (US)
28AQI (US)
23AQI (US)
29AQI (US)
31AQI (US)
33AQI (US)
29AQI (US)
32AQI (US)
31AQI (US)
41AQI (US)
18AQI (US)
14AQI (US)
23AQI (US)
24AQI (US)
15AQI (US)
19AQI (US)
7AQI (US)
21AQI (US)
21AQI (US)
19AQI (US)
23AQI (US)
25AQI (US)
24AQI (US)
20AQI (US)
26AQI (US)
9AQI (US)
11AQI (US)
13AQI (US)
21AQI (US)
17AQI (US)
19AQI (US)
18AQI (US)
21AQI (US)
12AQI (US)
27AQI (US)
37AQI (US)
40AQI (US)
35AQI (US)
33AQI (US)
31AQI (US)
34AQI (US)
33AQI (US)
38AQI (US)
51AQI (US)
42AQI (US)
33AQI (US)
17AQI (US)
17AQI (US)
21AQI (US)
33AQI (US)
25AQI (US)
29AQI (US)
25AQI (US)
27AQI (US)
22AQI (US)
23AQI (US)
21AQI (US)
20AQI (US)
28AQI (US)
25AQI (US)
15AQI (US)
18AQI (US)
17AQI (US)
16AQI (US)
17AQI (US)
14AQI (US)
23AQI (US)
32AQI (US)
18AQI (US)
22AQI (US)
58AQI (US)
9AQI (US)
10AQI (US)
22AQI (US)
24AQI (US)
25AQI (US)
34AQI (US)
27AQI (US)
37AQI (US)
38AQI (US)
20AQI (US)
24AQI (US)
19AQI (US)
17AQI (US)
16AQI (US)
13AQI (US)
7AQI (US)
13AQI (US)
12AQI (US)
20AQI (US)
24AQI (US)
26AQI (US)
24AQI (US)
25AQI (US)
27AQI (US)
25AQI (US)
27AQI (US)
33AQI (US)
32AQI (US)
19AQI (US)
16AQI (US)
22AQI (US)
30AQI (US)
17AQI (US)
26AQI (US)
25AQI (US)
22AQI (US)
21AQI (US)
18AQI (US)
31AQI (US)
47AQI (US)
32AQI (US)
18AQI (US)
21AQI (US)
23AQI (US)
23AQI (US)
30AQI (US)
27AQI (US)
25AQI (US)
22AQI (US)
24AQI (US)
24AQI (US)
18AQI (US)
23AQI (US)
34AQI (US)
31AQI (US)
43AQI (US)
21AQI (US)
17AQI (US)
19AQI (US)
26AQI (US)
30AQI (US)
28AQI (US)
19AQI (US)
13AQI (US)
22AQI (US)
31AQI (US)
31AQI (US)
25AQI (US)
31AQI (US)
25AQI (US)
23AQI (US)
25AQI (US)
26AQI (US)
26AQI (US)
26AQI (US)
22AQI (US)
17AQI (US)
19AQI (US)
26AQI (US)
29AQI (US)
20AQI (US)
14AQI (US)
21AQI (US)
27AQI (US)
22AQI (US)
27AQI (US)
26AQI (US)
26AQI (US)
21AQI (US)
22AQI (US)
24AQI (US)
22AQI (US)
20AQI (US)
19AQI (US)
24AQI (US)
19AQI (US)
21AQI (US)
36AQI (US)
34AQI (US)
35AQI (US)
24AQI (US)
26AQI (US)
24AQI (US)
23AQI (US)
25AQI (US)
23AQI (US)
No. of days
202628AQI (US)
Highest AQI (US) recorded in
January36AQI (US)
Lowest AQI (US) recorded in
September23AQI (US)
202535AQI (US)
Highest AQI (US) recorded in
December50AQI (US)
Lowest AQI (US) recorded in
May20AQI (US)
202433AQI (US)
Highest AQI (US) recorded in
January71AQI (US)
Lowest AQI (US) recorded in
July19AQI (US)
202329AQI (US)
Highest AQI (US) recorded in
December45AQI (US)
Lowest AQI (US) recorded in
October16AQI (US)
202233AQI (US)
Highest AQI (US) recorded in
March57AQI (US)
Lowest AQI (US) recorded in
August12AQI (US)
202132AQI (US)
Highest AQI (US) recorded in
December59AQI (US)
Lowest AQI (US) recorded in
April17AQI (US)
202021AQI (US)
Highest AQI (US) recorded in
March32AQI (US)
Lowest AQI (US) recorded in
July11AQI (US)
Most & Least Polluted Years Over the Last 7 Years
Sarpsborg's annual 2026 AQI (US) (28) shows an average percentage change of -5.4% (improved AQI (US)) compared to previous years: 2020 (21), 2021 (32), 2022 (33), 2023 (29), 2024 (33), 2025 (35).