Rennes, Brittany, France Historical Air Quality Analysis
Dive into detailed Air Quality Insights with historical data, monthly patterns, and yearly trends at your fingertips!
November Air Quality Analysis
Rennes, Brittany, France
AQI Trends: Highest and Lowest
Same Day Analysis (28th November ):
On this day, AQI across the 1 years varied significantly: 2025 ranks 1st highest AQI at 26 of Good air quality on the same day.
Download 2024 Annual Data
World Air Quality Report

Day & Night AQI Trend: 28th Nov - 29th Nov 2025
Rennes, Brittany, France
8 AM28th Nov 2025
5 PM
7 AM29th Nov 2025
28AQI
13AQI
59AQI
21AQI
In the last 24 hours,
Rennes's AQI reached its highest point of 59 at 1 AM during the Night, while the lowest point, undefined, was recorded at 7 AM during the Night between 28th Nov and 29th Nov 2025.
Day & Night AQI Trend : Oct - Nov 2025
Rennes, Brittany, France
11°C8/15°C
14°C13/16°C
13°C9/14°C
11°C9/14°C
12°C8/17°C
13°C10/15°C
16°C13/20°C
15°C13/17°C
12°C10/15°C
11°C8/15°C
10°C7/16°C
12°C9/15°C
13°C9/17°C
14°C10/18°C
15°C12/20°C
16°C11/19°C
12°C10/14°C
11°C8/14°C
8°C3/11°C
6°C3/10°C
7°C3/8°C
3°C1/6°C
3°C0/8°C
4°C0/6°C
9°C6/13°C
8°C5/11°C
8°C5/10°C
5°C3/9°C
10°C6/14°C
12°C7/14°C
--°C/°C
35AQI
26AQI
38AQI
26AQI
2025 Days Vs Air Quality
Rennes, Brittany, France
88%
161
13%
23
Total number of days with different AQI categories in last 333 days in 2025 (32 days remaining)
Under WHO’s Safe Air Quality Limits: 88%
Health Risk Level:
Low
In 2025, 88% of 333 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
Rennes, Brittany, France
AQI levels in 2025
Jan.
Feb.
Mar.
Apr.
May
Jun.
Jul.
Aug.
Sep.
Oct.
Nov.
Dec.
15AQI
19AQI
21AQI
28AQI
26AQI
25AQI
20AQI
18AQI
17AQI
16AQI
20AQI
42AQI
62AQI
45AQI
51AQI
44AQI
35AQI
27AQI
28AQI
29AQI
31AQI
32AQI
40AQI
48AQI
54AQI
40AQI
33AQI
28AQI
24AQI
18AQI
16AQI
16AQI
20AQI
27AQI
25AQI
23AQI
20AQI
20AQI
18AQI
17AQI
19AQI
20AQI
22AQI
23AQI
23AQI
26AQI
28AQI
26AQI
34AQI
27AQI
24AQI
20AQI
20AQI
19AQI
18AQI
16AQI
30AQI
49AQI
53AQI
35AQI
35AQI
28AQI
22AQI
22AQI
21AQI
21AQI
21AQI
23AQI
24AQI
25AQI
27AQI
30AQI
25AQI
24AQI
35AQI
49AQI
55AQI
51AQI
40AQI
43AQI
42AQI
37AQI
38AQI
43AQI
41AQI
33AQI
30AQI
30AQI
31AQI
29AQI
28AQI
27AQI
22AQI
21AQI
20AQI
22AQI
21AQI
27AQI
23AQI
19AQI
18AQI
23AQI
23AQI
23AQI
20AQI
22AQI
19AQI
18AQI
17AQI
23AQI
24AQI
20AQI
19AQI
26AQI
33AQI
24AQI
18AQI
17AQI
16AQI
19AQI
30AQI
47AQI
41AQI
31AQI
39AQI
47AQI
56AQI
45AQI
42AQI
46AQI
56AQI
62AQI
56AQI
52AQI
52AQI
65AQI
67AQI
64AQI
56AQI
55AQI
54AQI
52AQI
61AQI
62AQI
22AQI
23AQI
27AQI
22AQI
23AQI
22AQI
23AQI
18AQI
21AQI
24AQI
27AQI
26AQI
30AQI
31AQI
40AQI
36AQI
31AQI
27AQI
33AQI
37AQI
47AQI
27AQI
36AQI
31AQI
46AQI
50AQI
31AQI
28AQI
33AQI
50AQI
29AQI
20AQI
32AQI
57AQI
42AQI
40AQI
32AQI
52AQI
43AQI
26AQI
18AQI
31AQI
25AQI
32AQI
24AQI
43AQI
36AQI
No. of days
202532AQI
Highest AQI recorded in
October43AQI
Lowest AQI recorded in
May18AQI
Most & Least Polluted Years Over the Last 1 Years
Rennes's annual 2025 AQI (32) shows an average percentage change of NaN% (improved AQI) compared to previous years: .