StCroix, Sarpsborg, Ostfold, Norway Historical Air Quality Analysis
Dive into detailed Air Quality Insights with historical data, monthly patterns, and yearly trends at your fingertips!
August Air Quality Analysis
StCroix, Sarpsborg, Ostfold, Norway
AQI Trends: Highest and Lowest
Same Day Analysis (1st August ):
On this day, AQI across the 5 years varied significantly: 2025 ranks 1st highest AQI at 28 of Good air quality on the same day.
Download 2024 Annual Data
World Air Quality Report

Day & Night AQI Trend: 1st Aug - 2nd Aug 2025
StCroix, Sarpsborg, Ostfold, Norway
4 AM1st Aug 2025
10 PM
3 AM2nd Aug 2025
33AQI
22AQI
49AQI
27AQI
In the last 24 hours,
StCroix's AQI reached its highest point of 49 at 3 AM during the Night, while the lowest point, 22, was recorded at 12 PM during the Day between 1st Aug and 2nd Aug 2025.
Day & Night AQI Trend : Jul - Aug 2025
StCroix, Sarpsborg, Ostfold, Norway
16°C13/20°C
14°C10/17°C
15°C13/16°C
16°C14/18°C
15°C13/18°C
16°C12/20°C
17°C14/19°C
17°C13/21°C
20°C13/27°C
21°C15/27°C
19°C16/24°C
19°C17/22°C
20°C15/24°C
20°C17/25°C
23°C15/28°C
22°C18/26°C
22°C18/26°C
23°C18/28°C
22°C16/26°C
23°C18/27°C
21°C17/26°C
21°C17/27°C
20°C17/23°C
18°C16/21°C
18°C15/19°C
18°C13/23°C
16°C15/18°C
17°C15/20°C
18°C14/23°C
19°C15/22°C
--°C/°C
36AQI
28AQI
33AQI
33AQI
2025 Days Vs Air Quality
StCroix, Sarpsborg, Ostfold, Norway
89%
189
11%
23
0.4%
1
Total number of days with different AQI categories in last 214 days in 2025 (151 days remaining)
Under WHO’s Safe Air Quality Limits: 89%
Health Risk Level:
Low
In 2025, 89% 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
StCroix, Sarpsborg, Ostfold, Norway
AQI levels in 2025
Jan.
Feb.
Mar.
Apr.
May
Jun.
Jul.
Aug.
Sep.
Oct.
Nov.
Dec.
22AQI
46AQI
37AQI
121AQI
76AQI
25AQI
21AQI
44AQI
47AQI
23AQI
24AQI
73AQI
46AQI
41AQI
53AQI
36AQI
53AQI
34AQI
37AQI
32AQI
35AQI
46AQI
32AQI
35AQI
50AQI
34AQI
25AQI
45AQI
27AQI
28AQI
36AQI
61AQI
62AQI
39AQI
60AQI
41AQI
59AQI
52AQI
38AQI
43AQI
37AQI
36AQI
31AQI
29AQI
55AQI
67AQI
72AQI
98AQI
70AQI
72AQI
44AQI
72AQI
82AQI
38AQI
46AQI
27AQI
30AQI
29AQI
31AQI
31AQI
26AQI
32AQI
38AQI
44AQI
47AQI
94AQI
52AQI
30AQI
32AQI
20AQI
20AQI
32AQI
57AQI
33AQI
21AQI
36AQI
44AQI
48AQI
42AQI
40AQI
27AQI
38AQI
43AQI
47AQI
27AQI
40AQI
54AQI
33AQI
19AQI
24AQI
32AQI
44AQI
44AQI
24AQI
18AQI
21AQI
23AQI
24AQI
22AQI
31AQI
29AQI
20AQI
38AQI
34AQI
31AQI
48AQI
66AQI
19AQI
18AQI
12AQI
12AQI
15AQI
15AQI
15AQI
13AQI
17AQI
27AQI
45AQI
16AQI
14AQI
31AQI
22AQI
13AQI
13AQI
17AQI
15AQI
15AQI
19AQI
25AQI
40AQI
26AQI
34AQI
24AQI
20AQI
18AQI
15AQI
15AQI
16AQI
20AQI
21AQI
13AQI
13AQI
13AQI
22AQI
21AQI
26AQI
27AQI
23AQI
17AQI
21AQI
12AQI
21AQI
21AQI
19AQI
27AQI
23AQI
18AQI
16AQI
18AQI
16AQI
37AQI
35AQI
22AQI
22AQI
23AQI
30AQI
30AQI
39AQI
21AQI
16AQI
16AQI
19AQI
13AQI
39AQI
18AQI
16AQI
32AQI
19AQI
26AQI
20AQI
16AQI
34AQI
38AQI
18AQI
17AQI
18AQI
18AQI
18AQI
19AQI
24AQI
35AQI
28AQI
26AQI
30AQI
38AQI
38AQI
40AQI
33AQI
41AQI
48AQI
51AQI
40AQI
40AQI
37AQI
39AQI
47AQI
45AQI
36AQI
32AQI
25AQI
18AQI
35AQI
28AQI
41AQI
51AQI
38AQI
26AQI
20AQI
23AQI
32AQI
28AQI
No. of days
202533AQI
Highest AQI recorded in
February51AQI
Lowest AQI recorded in
May20AQI
202435AQI
Highest AQI recorded in
January79AQI
Lowest AQI recorded in
July19AQI
202333AQI
Highest AQI recorded in
December52AQI
Lowest AQI recorded in
October18AQI
202235AQI
Highest AQI recorded in
March63AQI
Lowest AQI recorded in
August13AQI
202138AQI
Highest AQI recorded in
December66AQI
Lowest AQI recorded in
April21AQI
202020AQI
Highest AQI recorded in
October39AQI
Lowest AQI recorded in
September11AQI
Most & Least Polluted Years Over the Last 6 Years
StCroix's annual 2025 AQI (33) shows an average percentage change of 7.5% (worsened AQI) compared to previous years: 2020 (20), 2021 (38), 2022 (35), 2023 (33), 2024 (35).