Saint Etienne Sud, Saint Etienne, Auvergne Rhone Alpes, France 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
Saint Etienne Sud, Saint Etienne, Auvergne Rhone Alpes, France
AQI Trends: Highest and Lowest
Same Day Analysis (23rd September):
On this day, AQI across the 5 years varied significantly: 2026 ranks 3rd highest AQI at 28 of Good air quality, showing improvement over 2024 and 2022 on the same day.
Day & Night AQI Trend: 23rd Sep - 24th Sep 2026
Saint Etienne Sud, Saint Etienne, Auvergne Rhone Alpes, France
7 AM23rd Sep 2026
8 PM
6 AM24th Sep 2026
31AQI
23AQI
38AQI
27AQI
In the last 24 hours,
Saint Etienne Sud's AQI reached its highest point of 38 at 4 AM during the Night, while the lowest point, 23, was recorded at 6 PM during the Day between 23rd Sep and 24th Sep 2026.
Day & Night AQI Trend : Aug - Sep 2026
Saint Etienne Sud, Saint Etienne, Auvergne Rhone Alpes, France
22°C17/27°C
25°C19/28°C
20°C15/25°C
19°C15/24°C
22°C16/27°C
19°C14/24°C
19°C13/24°C
20°C15/25°C
20°C14/26°C
24°C17/31°C
22°C16/27°C
23°C17/29°C
26°C21/31°C
25°C19/33°C
15°C10/22°C
14°C8/18°C
15°C10/20°C
16°C11/22°C
18°C13/24°C
20°C14/25°C
23°C17/29°C
16°C13/22°C
14°C8/18°C
15°C10/18°C
16°C9/23°C
19°C14/25°C
16°C11/21°C
15°C8/22°C
17°C11/24°C
18°C14/22°C
33AQI
26AQI
30AQI
27AQI
2026 Days Vs Air Quality
Saint Etienne Sud, Saint Etienne, Auvergne Rhone Alpes, France
93%
244
7%
19
Total number of days with different AQI categories in last 267 days in 2026 (98 days remaining)
Under WHO’s Safe Air Quality Limits: 93%
Health Risk Level:
Very Low
In 2026, 93% of 267 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
Saint Etienne Sud, Saint Etienne, Auvergne Rhone Alpes, France
AQI levels in 2026
Jan.
Feb.
Mar.
Apr.
May
Jun.
Jul.
Aug.
Sep.
Oct.
Nov.
Dec.
59AQI (US)
62AQI (US)
46AQI (US)
39AQI (US)
39AQI (US)
57AQI (US)
42AQI (US)
40AQI (US)
18AQI (US)
16AQI (US)
29AQI (US)
38AQI (US)
17AQI (US)
18AQI (US)
26AQI (US)
17AQI (US)
20AQI (US)
48AQI (US)
61AQI (US)
58AQI (US)
36AQI (US)
15AQI (US)
24AQI (US)
47AQI (US)
27AQI (US)
14AQI (US)
20AQI (US)
13AQI (US)
42AQI (US)
20AQI (US)
24AQI (US)
32AQI (US)
10AQI (US)
18AQI (US)
38AQI (US)
38AQI (US)
23AQI (US)
35AQI (US)
50AQI (US)
48AQI (US)
12AQI (US)
7AQI (US)
32AQI (US)
28AQI (US)
23AQI (US)
49AQI (US)
26AQI (US)
25AQI (US)
26AQI (US)
11AQI (US)
20AQI (US)
26AQI (US)
29AQI (US)
29AQI (US)
28AQI (US)
34AQI (US)
43AQI (US)
47AQI (US)
61AQI (US)
38AQI (US)
34AQI (US)
49AQI (US)
51AQI (US)
53AQI (US)
52AQI (US)
52AQI (US)
48AQI (US)
35AQI (US)
25AQI (US)
13AQI (US)
18AQI (US)
19AQI (US)
8AQI (US)
18AQI (US)
27AQI (US)
31AQI (US)
32AQI (US)
34AQI (US)
62AQI (US)
67AQI (US)
60AQI (US)
50AQI (US)
55AQI (US)
38AQI (US)
9AQI (US)
15AQI (US)
28AQI (US)
13AQI (US)
17AQI (US)
13AQI (US)
22AQI (US)
30AQI (US)
27AQI (US)
24AQI (US)
28AQI (US)
26AQI (US)
24AQI (US)
17AQI (US)
17AQI (US)
24AQI (US)
37AQI (US)
13AQI (US)
12AQI (US)
27AQI (US)
48AQI (US)
22AQI (US)
22AQI (US)
17AQI (US)
15AQI (US)
15AQI (US)
21AQI (US)
21AQI (US)
18AQI (US)
14AQI (US)
16AQI (US)
27AQI (US)
40AQI (US)
37AQI (US)
28AQI (US)
22AQI (US)
17AQI (US)
21AQI (US)
19AQI (US)
17AQI (US)
11AQI (US)
19AQI (US)
19AQI (US)
16AQI (US)
17AQI (US)
17AQI (US)
13AQI (US)
23AQI (US)
36AQI (US)
35AQI (US)
36AQI (US)
44AQI (US)
40AQI (US)
39AQI (US)
42AQI (US)
45AQI (US)
54AQI (US)
44AQI (US)
36AQI (US)
45AQI (US)
37AQI (US)
22AQI (US)
26AQI (US)
22AQI (US)
18AQI (US)
13AQI (US)
13AQI (US)
14AQI (US)
14AQI (US)
14AQI (US)
12AQI (US)
16AQI (US)
10AQI (US)
10AQI (US)
12AQI (US)
12AQI (US)
15AQI (US)
16AQI (US)
23AQI (US)
43AQI (US)
38AQI (US)
35AQI (US)
22AQI (US)
17AQI (US)
21AQI (US)
26AQI (US)
29AQI (US)
44AQI (US)
38AQI (US)
38AQI (US)
26AQI (US)
16AQI (US)
14AQI (US)
14AQI (US)
18AQI (US)
14AQI (US)
13AQI (US)
16AQI (US)
10AQI (US)
12AQI (US)
13AQI (US)
16AQI (US)
27AQI (US)
25AQI (US)
30AQI (US)
24AQI (US)
26AQI (US)
37AQI (US)
41AQI (US)
58AQI (US)
25AQI (US)
30AQI (US)
36AQI (US)
30AQI (US)
27AQI (US)
26AQI (US)
24AQI (US)
25AQI (US)
25AQI (US)
67AQI (US)
22AQI (US)
20AQI (US)
46AQI (US)
52AQI (US)
57AQI (US)
50AQI (US)
45AQI (US)
49AQI (US)
42AQI (US)
30AQI (US)
29AQI (US)
31AQI (US)
32AQI (US)
28AQI (US)
23AQI (US)
27AQI (US)
37AQI (US)
44AQI (US)
37AQI (US)
31AQI (US)
30AQI (US)
30AQI (US)
34AQI (US)
23AQI (US)
38AQI (US)
26AQI (US)
23AQI (US)
23AQI (US)
28AQI (US)
28AQI (US)
27AQI (US)
42AQI (US)
29AQI (US)
12AQI (US)
20AQI (US)
20AQI (US)
27AQI (US)
31AQI (US)
29AQI (US)
30AQI (US)
25AQI (US)
29AQI (US)
27AQI (US)
41AQI (US)
24AQI (US)
27AQI (US)
29AQI (US)
29AQI (US)
37AQI (US)
33AQI (US)
28AQI (US)
30AQI (US)
30AQI (US)
34AQI (US)
25AQI (US)
26AQI (US)
32AQI (US)
37AQI (US)
28AQI (US)
33AQI (US)
30AQI (US)
34AQI (US)
24AQI (US)
29AQI (US)
21AQI (US)
29AQI (US)
31AQI (US)
30AQI (US)
No. of days
202629AQI (US)
Highest AQI (US) recorded in
March34AQI (US)
Lowest AQI (US) recorded in
June21AQI (US)
202537AQI (US)
Highest AQI (US) recorded in
February50AQI (US)
Lowest AQI (US) recorded in
September22AQI (US)
202434AQI (US)
Highest AQI (US) recorded in
January49AQI (US)
Lowest AQI (US) recorded in
October25AQI (US)
202338AQI (US)
Highest AQI (US) recorded in
February54AQI (US)
Lowest AQI (US) recorded in
November30AQI (US)
202240AQI (US)
Highest AQI (US) recorded in
March60AQI (US)
Lowest AQI (US) recorded in
September26AQI (US)
202137AQI (US)
Highest AQI (US) recorded in
February49AQI (US)
Lowest AQI (US) recorded in
May27AQI (US)
202036AQI (US)
Highest AQI (US) recorded in
March58AQI (US)
Lowest AQI (US) recorded in
December29AQI (US)
Most & Least Polluted Years Over the Last 7 Years
Saint Etienne Sud's annual 2026 AQI (US) (29) shows an average percentage change of -21.4% (improved AQI (US)) compared to previous years: 2020 (36), 2021 (37), 2022 (40), 2023 (38), 2024 (34), 2025 (37).