Grenoble Les Frenes, Grenoble, 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!
October Air Quality Analysis
Grenoble Les Frenes, Grenoble, Auvergne Rhone Alpes, France
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 54 of Moderate air quality on the same day.
Download 2024 Annual Data
World Air Quality Report

Day & Night AQI Trend: 4th Oct - 5th Oct 2025
Grenoble Les Frenes, Grenoble, Auvergne Rhone Alpes, France
7 AM4th Oct 2025
7 PM
6 AM5th Oct 2025
56AQI
41AQI
59AQI
44AQI
In the last 24 hours,
Grenoble Les Frenes's AQI reached its highest point of 59 at 9 PM during the Night, while the lowest point, undefined, was recorded at 6 AM during the Night between 4th Oct and 5th Oct 2025.
Day & Night AQI Trend : Sep - Oct 2025
Grenoble Les Frenes, Grenoble, Auvergne Rhone Alpes, France
12°C3/21°C
13°C2/28°C
16°C5/31°C
16°C8/24°C
16°C6/21°C
13°C4/23°C
14°C4/22°C
13°C5/22°C
12°C4/21°C
16°C10/23°C
19°C10/28°C
12°C3/20°C
11°C1/23°C
15°C5/28°C
17°C7/32°C
17°C8/31°C
18°C9/28°C
14°C12/15°C
10°C8/11°C
9°C4/10°C
10°C6/13°C
10°C8/12°C
9°C0/18°C
8°C-2/21°C
8°C-1/19°C
7°C0/18°C
6°C-2/16°C
5°C-3/17°C
8°C-2/20°C
13°C1/23°C
--°C/°C
29AQI
27AQI
30AQI
28AQI
2025 Days Vs Air Quality
Grenoble Les Frenes, Grenoble, Auvergne Rhone Alpes, France
77%
212
22%
62
0.7%
2
Total number of days with different AQI categories in last 278 days in 2025 (87 days remaining)
Under WHO’s Safe Air Quality Limits: 77%
Health Risk Level:
Low
In 2025, 77% of 278 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
Grenoble Les Frenes, Grenoble, Auvergne Rhone Alpes, France
AQI levels in 2025
Jan.
Feb.
Mar.
Apr.
May
Jun.
Jul.
Aug.
Sep.
Oct.
Nov.
Dec.
104AQI
75AQI
37AQI
57AQI
59AQI
28AQI
33AQI
35AQI
41AQI
36AQI
40AQI
38AQI
52AQI
71AQI
90AQI
98AQI
92AQI
90AQI
100AQI
102AQI
83AQI
59AQI
37AQI
53AQI
36AQI
23AQI
26AQI
23AQI
25AQI
25AQI
36AQI
43AQI
55AQI
61AQI
73AQI
81AQI
78AQI
77AQI
67AQI
46AQI
55AQI
47AQI
46AQI
43AQI
39AQI
49AQI
61AQI
70AQI
80AQI
91AQI
75AQI
64AQI
40AQI
45AQI
53AQI
41AQI
25AQI
33AQI
29AQI
41AQI
56AQI
54AQI
50AQI
48AQI
52AQI
53AQI
55AQI
55AQI
29AQI
26AQI
38AQI
35AQI
35AQI
34AQI
31AQI
31AQI
35AQI
33AQI
34AQI
35AQI
36AQI
36AQI
37AQI
35AQI
43AQI
68AQI
49AQI
53AQI
42AQI
27AQI
28AQI
23AQI
32AQI
38AQI
33AQI
34AQI
27AQI
26AQI
29AQI
31AQI
30AQI
30AQI
28AQI
31AQI
24AQI
23AQI
21AQI
24AQI
26AQI
23AQI
22AQI
21AQI
22AQI
22AQI
23AQI
22AQI
23AQI
26AQI
27AQI
27AQI
33AQI
34AQI
36AQI
35AQI
33AQI
31AQI
32AQI
37AQI
33AQI
27AQI
27AQI
22AQI
21AQI
23AQI
26AQI
25AQI
26AQI
26AQI
26AQI
27AQI
32AQI
25AQI
31AQI
26AQI
29AQI
28AQI
27AQI
28AQI
26AQI
22AQI
26AQI
33AQI
35AQI
32AQI
33AQI
24AQI
29AQI
46AQI
38AQI
45AQI
49AQI
53AQI
53AQI
51AQI
52AQI
57AQI
45AQI
39AQI
40AQI
42AQI
48AQI
51AQI
51AQI
52AQI
52AQI
53AQI
53AQI
51AQI
46AQI
37AQI
39AQI
36AQI
36AQI
37AQI
42AQI
39AQI
35AQI
30AQI
24AQI
22AQI
22AQI
24AQI
30AQI
34AQI
34AQI
33AQI
34AQI
29AQI
24AQI
25AQI
28AQI
23AQI
19AQI
18AQI
17AQI
18AQI
18AQI
20AQI
20AQI
21AQI
23AQI
23AQI
27AQI
29AQI
29AQI
28AQI
31AQI
39AQI
31AQI
34AQI
45AQI
52AQI
54AQI
54AQI
57AQI
57AQI
52AQI
55AQI
54AQI
51AQI
52AQI
50AQI
42AQI
34AQI
31AQI
30AQI
27AQI
34AQI
43AQI
39AQI
26AQI
20AQI
17AQI
17AQI
19AQI
20AQI
22AQI
23AQI
23AQI
23AQI
30AQI
29AQI
25AQI
24AQI
25AQI
24AQI
25AQI
24AQI
21AQI
23AQI
21AQI
22AQI
28AQI
28AQI
20AQI
15AQI
16AQI
17AQI
16AQI
19AQI
20AQI
38AQI
53AQI
55AQI
64AQI
54AQI
55AQI
56AQI
41AQI
27AQI
28AQI
44AQI
27AQI
39AQI
24AQI
58AQI
No. of days
202538AQI
Highest AQI recorded in
October58AQI
Lowest AQI recorded in
September24AQI
202438AQI
Highest AQI recorded in
January61AQI
Lowest AQI recorded in
October26AQI
202340AQI
Highest AQI recorded in
February59AQI
Lowest AQI recorded in
November28AQI
202246AQI
Highest AQI recorded in
January77AQI
Lowest AQI recorded in
September25AQI
202140AQI
Highest AQI recorded in
December60AQI
Lowest AQI recorded in
May27AQI
202040AQI
Highest AQI recorded in
March54AQI
Lowest AQI recorded in
October30AQI
Most & Least Polluted Years Over the Last 6 Years
Grenoble Les Frenes's annual 2025 AQI (38) shows an average percentage change of -6.5% (improved AQI) compared to previous years: 2020 (40), 2021 (40), 2022 (46), 2023 (40), 2024 (38).