Bayonne, Nouvelle Aquitaine, 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
Bayonne, Nouvelle Aquitaine, France
AQI Trends: Highest and Lowest
Same Day Analysis (15th October ):
On this day, AQI across the 5 years varied significantly: 2025 ranks 1st highest AQI at 77 of Moderate air quality on the same day.
Download 2024 Annual Data
World Air Quality Report

Day & Night AQI Trend: 15th Oct - 16th Oct 2025
Bayonne, Nouvelle Aquitaine, France
8 AM15th Oct 2025
7 PM
7 AM16th Oct 2025
63AQI
36AQI
44AQI
27AQI
In the last 24 hours,
Bayonne's AQI reached its highest point of 63 at 12 PM during the Day, while the lowest point, 27, was recorded at 6 AM during the Night between 15th Oct and 16th Oct 2025.
Day & Night AQI Trend : Sep - Oct 2025
Bayonne, Nouvelle Aquitaine, France
18°C16/21°C
19°C15/25°C
22°C16/30°C
25°C19/33°C
21°C18/26°C
15°C14/16°C
15°C12/16°C
13°C10/16°C
13°C10/16°C
15°C12/17°C
14°C11/17°C
17°C11/24°C
19°C17/22°C
17°C15/19°C
16°C14/19°C
16°C13/19°C
17°C11/23°C
18°C16/20°C
17°C15/21°C
15°C12/18°C
14°C10/21°C
16°C12/21°C
17°C15/20°C
17°C16/18°C
14°C12/17°C
16°C11/22°C
18°C15/23°C
18°C15/23°C
18°C16/20°C
16°C14/19°C
--°C/°C
41AQI
35AQI
39AQI
35AQI
2025 Days Vs Air Quality
Bayonne, Nouvelle Aquitaine, France
82%
235
18%
53
Total number of days with different AQI categories in last 289 days in 2025 (76 days remaining)
Under WHO’s Safe Air Quality Limits: 82%
Health Risk Level:
Low
In 2025, 82% of 289 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
Bayonne, Nouvelle Aquitaine, France
AQI levels in 2025
Jan.
Feb.
Mar.
Apr.
May
Jun.
Jul.
Aug.
Sep.
Oct.
Nov.
Dec.
52AQI
34AQI
43AQI
35AQI
34AQI
40AQI
37AQI
27AQI
35AQI
31AQI
38AQI
47AQI
65AQI
67AQI
78AQI
72AQI
60AQI
72AQI
67AQI
42AQI
56AQI
32AQI
38AQI
32AQI
31AQI
30AQI
49AQI
48AQI
35AQI
40AQI
45AQI
37AQI
46AQI
45AQI
60AQI
59AQI
69AQI
67AQI
38AQI
44AQI
43AQI
46AQI
38AQI
35AQI
39AQI
40AQI
48AQI
43AQI
59AQI
63AQI
72AQI
50AQI
43AQI
45AQI
43AQI
42AQI
41AQI
46AQI
50AQI
53AQI
44AQI
55AQI
53AQI
60AQI
59AQI
37AQI
32AQI
32AQI
32AQI
35AQI
35AQI
35AQI
43AQI
50AQI
45AQI
41AQI
43AQI
40AQI
42AQI
45AQI
43AQI
42AQI
40AQI
50AQI
50AQI
51AQI
48AQI
48AQI
47AQI
44AQI
46AQI
35AQI
28AQI
40AQI
38AQI
28AQI
26AQI
38AQI
51AQI
46AQI
46AQI
49AQI
49AQI
40AQI
42AQI
35AQI
37AQI
39AQI
36AQI
44AQI
46AQI
49AQI
48AQI
40AQI
51AQI
51AQI
51AQI
41AQI
39AQI
33AQI
29AQI
33AQI
31AQI
33AQI
25AQI
28AQI
35AQI
31AQI
32AQI
30AQI
24AQI
31AQI
32AQI
32AQI
33AQI
53AQI
46AQI
41AQI
41AQI
41AQI
36AQI
32AQI
25AQI
35AQI
34AQI
26AQI
31AQI
37AQI
26AQI
33AQI
40AQI
25AQI
29AQI
44AQI
31AQI
26AQI
27AQI
27AQI
42AQI
53AQI
54AQI
50AQI
51AQI
51AQI
53AQI
46AQI
46AQI
45AQI
45AQI
48AQI
49AQI
46AQI
41AQI
42AQI
43AQI
43AQI
39AQI
42AQI
41AQI
36AQI
40AQI
45AQI
38AQI
34AQI
36AQI
36AQI
34AQI
27AQI
28AQI
29AQI
33AQI
36AQI
40AQI
39AQI
35AQI
29AQI
35AQI
35AQI
30AQI
23AQI
22AQI
25AQI
22AQI
18AQI
19AQI
42AQI
48AQI
41AQI
26AQI
30AQI
22AQI
22AQI
25AQI
23AQI
27AQI
29AQI
32AQI
28AQI
32AQI
27AQI
26AQI
33AQI
51AQI
56AQI
57AQI
56AQI
54AQI
54AQI
56AQI
52AQI
49AQI
42AQI
39AQI
33AQI
31AQI
32AQI
32AQI
41AQI
35AQI
30AQI
25AQI
22AQI
21AQI
22AQI
22AQI
27AQI
27AQI
23AQI
24AQI
26AQI
25AQI
23AQI
22AQI
26AQI
22AQI
24AQI
22AQI
20AQI
23AQI
28AQI
30AQI
33AQI
38AQI
21AQI
21AQI
23AQI
27AQI
31AQI
35AQI
31AQI
37AQI
35AQI
43AQI
50AQI
59AQI
64AQI
60AQI
48AQI
63AQI
58AQI
65AQI
58AQI
62AQI
64AQI
63AQI
63AQI
72AQI
77AQI
46AQI
48AQI
44AQI
41AQI
33AQI
42AQI
32AQI
37AQI
27AQI
62AQI
No. of days
202540AQI
Highest AQI recorded in
October62AQI
Lowest AQI recorded in
September27AQI
202431AQI
Highest AQI recorded in
December41AQI
Lowest AQI recorded in
July24AQI
202330AQI
Highest AQI recorded in
February45AQI
Lowest AQI recorded in
July20AQI
202236AQI
Highest AQI recorded in
February51AQI
Lowest AQI recorded in
November23AQI
202134AQI
Highest AQI recorded in
November40AQI
Lowest AQI recorded in
January26AQI
202026AQI
Highest AQI recorded in
May32AQI
Lowest AQI recorded in
August24AQI
Most & Least Polluted Years Over the Last 6 Years
Bayonne's annual 2025 AQI (40) shows an average percentage change of 28.3% (worsened AQI) compared to previous years: 2020 (26), 2021 (34), 2022 (36), 2023 (30), 2024 (31).