Saint Ouen, Ile de France, France 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
Saint Ouen, Ile de France, France
AQI Trends: Highest and Lowest
Same Day Analysis (10th August ):
On this day, AQI across the 5 years varied significantly: 2025 ranks 2nd highest AQI at 29 of Good air quality, showing improvement over 2023 on the same day.
Download 2024 Annual Data
World Air Quality Report

Day & Night AQI Trend: 11th Aug - 12th Aug 2025
Saint Ouen, Ile de France, France
6 AM11th Aug 2025
9 PM
5 AM12th Aug 2025
AQI
AQI
52AQI
43AQI
In the last 24 hours,
Saint Ouen's AQI reached its highest point of 52 at 10 AM during the Night, while the lowest point, undefined, was recorded at 5 AM during the Night between 11th Aug and 12th Aug 2025.
Day & Night AQI Trend : Jul - Aug 2025
Saint Ouen, Ile de France, France
25°C17/33°C
24°C19/29°C
22°C17/27°C
19°C18/21°C
22°C15/29°C
26°C19/33°C
24°C21/28°C
20°C17/24°C
19°C17/22°C
20°C16/25°C
18°C16/21°C
18°C15/23°C
20°C14/27°C
22°C18/28°C
20°C16/26°C
19°C14/23°C
19°C14/25°C
20°C17/25°C
21°C16/27°C
20°C16/25°C
18°C13/22°C
20°C14/27°C
24°C18/31°C
21°C17/25°C
20°C15/26°C
24°C16/32°C
24°C18/30°C
24°C18/32°C
23°C15/30°C
--°C/°C
--°C/°C
27AQI
27AQI
28AQI
28AQI
2025 Days Vs Air Quality
Saint Ouen, Ile de France, France
69%
153
31%
69
Total number of days with different AQI categories in last 223 days in 2025 (142 days remaining)
Under WHO’s Safe Air Quality Limits: 69%
Health Risk Level:
Moderate
In 2025, 69% of 223 days were within WHO’s safe air quality limits, and 31% exceeded them. The risk of health issues is Moderate, particularly for individuals with respiratory or heart conditions.
Annual Air Quality Insights
Saint Ouen, Ile de France, France
AQI levels in 2025
Jan.
Feb.
Mar.
Apr.
May
Jun.
Jul.
Aug.
Sep.
Oct.
Nov.
Dec.
51AQI
41AQI
54AQI
79AQI
37AQI
30AQI
28AQI
34AQI
29AQI
46AQI
59AQI
63AQI
60AQI
76AQI
97AQI
64AQI
69AQI
73AQI
84AQI
95AQI
92AQI
75AQI
55AQI
37AQI
33AQI
31AQI
26AQI
26AQI
30AQI
29AQI
42AQI
47AQI
64AQI
80AQI
69AQI
64AQI
58AQI
57AQI
50AQI
42AQI
54AQI
63AQI
72AQI
71AQI
99AQI
81AQI
80AQI
78AQI
80AQI
84AQI
74AQI
64AQI
49AQI
55AQI
32AQI
40AQI
32AQI
30AQI
43AQI
57AQI
56AQI
69AQI
81AQI
99AQI
75AQI
57AQI
54AQI
52AQI
54AQI
80AQI
50AQI
47AQI
52AQI
55AQI
62AQI
61AQI
48AQI
55AQI
49AQI
53AQI
44AQI
29AQI
45AQI
86AQI
75AQI
67AQI
68AQI
42AQI
40AQI
50AQI
48AQI
36AQI
47AQI
46AQI
47AQI
43AQI
34AQI
47AQI
58AQI
65AQI
60AQI
52AQI
47AQI
42AQI
39AQI
26AQI
36AQI
39AQI
31AQI
28AQI
22AQI
39AQI
28AQI
40AQI
59AQI
62AQI
65AQI
58AQI
49AQI
47AQI
49AQI
48AQI
58AQI
35AQI
26AQI
30AQI
37AQI
43AQI
36AQI
33AQI
32AQI
31AQI
36AQI
45AQI
43AQI
38AQI
49AQI
51AQI
48AQI
44AQI
36AQI
36AQI
27AQI
33AQI
23AQI
26AQI
26AQI
24AQI
27AQI
29AQI
37AQI
32AQI
32AQI
31AQI
23AQI
23AQI
18AQI
19AQI
18AQI
37AQI
57AQI
40AQI
45AQI
54AQI
52AQI
39AQI
38AQI
39AQI
39AQI
44AQI
45AQI
45AQI
45AQI
43AQI
38AQI
46AQI
44AQI
34AQI
32AQI
30AQI
37AQI
49AQI
50AQI
50AQI
44AQI
35AQI
26AQI
25AQI
26AQI
31AQI
31AQI
31AQI
33AQI
34AQI
35AQI
31AQI
31AQI
27AQI
31AQI
33AQI
26AQI
24AQI
22AQI
22AQI
26AQI
35AQI
35AQI
28AQI
30AQI
31AQI
27AQI
26AQI
21AQI
21AQI
22AQI
23AQI
23AQI
26AQI
27AQI
33AQI
35AQI
29AQI
53AQI
61AQI
58AQI
45AQI
37AQI
37AQI
32AQI
26AQI
No. of days
202545AQI
Highest AQI recorded in
February61AQI
Lowest AQI recorded in
August26AQI
202435AQI
Highest AQI recorded in
November48AQI
Lowest AQI recorded in
April23AQI
202332AQI
Highest AQI recorded in
February48AQI
Lowest AQI recorded in
November23AQI
202243AQI
Highest AQI recorded in
March73AQI
Lowest AQI recorded in
November30AQI
202127AQI
Highest AQI recorded in
April33AQI
Lowest AQI recorded in
December21AQI
202026AQI
Highest AQI recorded in
April34AQI
Lowest AQI recorded in
December17AQI
Most & Least Polluted Years Over the Last 6 Years
Saint Ouen's annual 2025 AQI (45) shows an average percentage change of 42.7% (worsened AQI) compared to previous years: 2020 (26), 2021 (27), 2022 (43), 2023 (32), 2024 (35).