Barakaldo, Basque Country, Spain 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
Barakaldo, Basque Country, Spain
AQI Trends: Highest and Lowest
Same Day Analysis (29th September ):
On this day, AQI across the 1 years varied significantly: 2025 ranks 1st highest AQI at 55 of Moderate air quality on the same day.
Download 2024 Annual Data
World Air Quality Report

Day & Night AQI Trend: 29th Sep - 30th Sep 2025
Barakaldo, Basque Country, Spain
7 AM29th Sep 2025
8 PM
6 AM30th Sep 2025
59AQI
49AQI
61AQI
47AQI
In the last 24 hours,
Barakaldo's AQI reached its highest point of 61 at 8 PM during the Night, while the lowest point, 47, was recorded at 12 AM during the Night between 29th Sep and 30th Sep 2025.
Day & Night AQI Trend : Aug - Sep 2025
Barakaldo, Basque Country, Spain
18°C15/20°C
17°C15/21°C
19°C15/25°C
21°C17/27°C
18°C16/21°C
18°C14/23°C
24°C17/34°C
22°C18/28°C
16°C15/17°C
17°C15/20°C
17°C15/19°C
18°C16/22°C
18°C17/19°C
18°C15/22°C
20°C15/26°C
18°C17/21°C
18°C16/23°C
20°C15/25°C
21°C16/29°C
24°C19/32°C
21°C17/26°C
14°C13/16°C
14°C12/16°C
14°C12/15°C
14°C12/17°C
14°C11/18°C
15°C12/19°C
18°C12/25°C
19°C16/22°C
17°C15/20°C
--°C/°C
33AQI
31AQI
32AQI
31AQI
2025 Days Vs Air Quality
Barakaldo, Basque Country, Spain
81%
101
19%
23
Total number of days with different AQI categories in last 273 days in 2025 (92 days remaining)
Under WHO’s Safe Air Quality Limits: 81%
Health Risk Level:
Low
In 2025, 81% of 273 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
Barakaldo, Basque Country, Spain
AQI levels in 2025
Jan.
Feb.
Mar.
Apr.
May
Jun.
Jul.
Aug.
Sep.
Oct.
Nov.
Dec.
39AQI
49AQI
38AQI
27AQI
25AQI
37AQI
32AQI
26AQI
29AQI
23AQI
41AQI
59AQI
67AQI
65AQI
60AQI
66AQI
52AQI
37AQI
31AQI
42AQI
47AQI
56AQI
58AQI
56AQI
53AQI
53AQI
57AQI
51AQI
47AQI
42AQI
43AQI
43AQI
44AQI
47AQI
35AQI
31AQI
34AQI
35AQI
32AQI
30AQI
27AQI
27AQI
32AQI
41AQI
41AQI
41AQI
39AQI
35AQI
41AQI
46AQI
35AQI
26AQI
25AQI
23AQI
22AQI
21AQI
19AQI
34AQI
44AQI
44AQI
29AQI
25AQI
22AQI
21AQI
25AQI
25AQI
27AQI
32AQI
36AQI
31AQI
33AQI
33AQI
27AQI
34AQI
49AQI
56AQI
57AQI
58AQI
57AQI
54AQI
56AQI
53AQI
51AQI
40AQI
37AQI
34AQI
32AQI
35AQI
38AQI
46AQI
39AQI
36AQI
30AQI
24AQI
24AQI
24AQI
24AQI
28AQI
31AQI
25AQI
26AQI
28AQI
26AQI
23AQI
24AQI
30AQI
29AQI
28AQI
24AQI
23AQI
27AQI
30AQI
49AQI
56AQI
45AQI
25AQI
17AQI
19AQI
23AQI
29AQI
37AQI
39AQI
46AQI
55AQI
42AQI
46AQI
32AQI
39AQI
31AQI
No. of days
202537AQI
Highest AQI recorded in
June46AQI
Lowest AQI recorded in
September31AQI
Most & Least Polluted Years Over the Last 1 Years
Barakaldo's annual 2025 AQI (37) shows an average percentage change of NaN% (improved AQI) compared to previous years: .