Los Herran, Vitoria Gasteiz, 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
Los Herran, Vitoria Gasteiz, Basque Country, Spain
AQI Trends: Highest and Lowest
Same Day Analysis (28th September ):
On this day, AQI across the 5 years varied significantly: 2025 ranks 1st highest AQI at 49 of Good air quality on the same day.
Download 2024 Annual Data
World Air Quality Report

Day & Night AQI Trend: 28th Sep - 29th Sep 2025
Los Herran, Vitoria Gasteiz, Basque Country, Spain
7 AM28th Sep 2025
8 PM
6 AM29th Sep 2025
59AQI
44AQI
48AQI
18AQI
In the last 24 hours,
Los Herran's AQI reached its highest point of 59 at 4 PM during the Day, while the lowest point, 18, was recorded at 4 AM during the Night between 28th Sep and 29th Sep 2025.
Day & Night AQI Trend : Aug - Sep 2025
Los Herran, Vitoria Gasteiz, Basque Country, Spain
19°C13/29°C
16°C11/21°C
15°C10/20°C
16°C10/25°C
19°C12/30°C
16°C11/21°C
18°C11/28°C
23°C15/33°C
20°C15/28°C
14°C12/15°C
14°C11/19°C
15°C11/19°C
17°C13/26°C
16°C12/24°C
15°C10/22°C
19°C12/29°C
16°C12/23°C
17°C12/27°C
20°C13/32°C
23°C13/35°C
23°C16/33°C
19°C13/27°C
12°C9/14°C
10°C7/15°C
11°C7/15°C
10°C6/15°C
10°C6/17°C
12°C5/22°C
16°C9/25°C
17°C11/24°C
--°C/°C
31AQI
25AQI
30AQI
25AQI
2025 Days Vs Air Quality
Los Herran, Vitoria Gasteiz, Basque Country, Spain
86%
234
14%
37
Total number of days with different AQI categories in last 272 days in 2025 (93 days remaining)
Under WHO’s Safe Air Quality Limits: 86%
Health Risk Level:
Low
In 2025, 86% of 272 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
Los Herran, Vitoria Gasteiz, Basque Country, Spain
AQI levels in 2025
Jan.
Feb.
Mar.
Apr.
May
Jun.
Jul.
Aug.
Sep.
Oct.
Nov.
Dec.
41AQI
36AQI
34AQI
34AQI
28AQI
26AQI
28AQI
21AQI
28AQI
28AQI
28AQI
22AQI
32AQI
44AQI
52AQI
41AQI
60AQI
55AQI
44AQI
42AQI
46AQI
43AQI
32AQI
24AQI
23AQI
22AQI
21AQI
23AQI
22AQI
24AQI
31AQI
32AQI
28AQI
29AQI
38AQI
46AQI
47AQI
47AQI
32AQI
32AQI
42AQI
46AQI
38AQI
44AQI
48AQI
42AQI
50AQI
50AQI
58AQI
65AQI
46AQI
51AQI
31AQI
31AQI
25AQI
26AQI
26AQI
44AQI
40AQI
31AQI
27AQI
31AQI
42AQI
52AQI
38AQI
31AQI
25AQI
26AQI
31AQI
26AQI
28AQI
26AQI
26AQI
28AQI
29AQI
42AQI
26AQI
21AQI
39AQI
27AQI
20AQI
21AQI
27AQI
30AQI
32AQI
41AQI
37AQI
26AQI
25AQI
36AQI
45AQI
53AQI
22AQI
35AQI
20AQI
22AQI
39AQI
49AQI
58AQI
53AQI
43AQI
41AQI
25AQI
31AQI
20AQI
18AQI
19AQI
24AQI
17AQI
20AQI
25AQI
24AQI
32AQI
38AQI
41AQI
20AQI
26AQI
34AQI
26AQI
30AQI
32AQI
44AQI
31AQI
27AQI
28AQI
29AQI
37AQI
44AQI
49AQI
30AQI
25AQI
30AQI
23AQI
37AQI
40AQI
46AQI
47AQI
47AQI
43AQI
40AQI
46AQI
27AQI
36AQI
34AQI
38AQI
27AQI
30AQI
40AQI
39AQI
46AQI
42AQI
30AQI
24AQI
27AQI
29AQI
31AQI
31AQI
33AQI
53AQI
67AQI
65AQI
59AQI
54AQI
62AQI
49AQI
31AQI
35AQI
44AQI
48AQI
56AQI
58AQI
57AQI
57AQI
52AQI
56AQI
52AQI
49AQI
45AQI
44AQI
44AQI
45AQI
55AQI
42AQI
41AQI
42AQI
44AQI
45AQI
30AQI
27AQI
28AQI
33AQI
41AQI
38AQI
43AQI
38AQI
31AQI
37AQI
47AQI
40AQI
27AQI
29AQI
28AQI
27AQI
30AQI
21AQI
42AQI
54AQI
48AQI
30AQI
31AQI
25AQI
21AQI
32AQI
27AQI
30AQI
35AQI
39AQI
32AQI
45AQI
50AQI
40AQI
46AQI
59AQI
60AQI
59AQI
59AQI
60AQI
63AQI
60AQI
56AQI
53AQI
35AQI
36AQI
32AQI
33AQI
41AQI
49AQI
52AQI
41AQI
33AQI
24AQI
21AQI
20AQI
21AQI
20AQI
26AQI
30AQI
25AQI
27AQI
34AQI
26AQI
24AQI
24AQI
24AQI
22AQI
21AQI
25AQI
24AQI
22AQI
30AQI
51AQI
54AQI
47AQI
24AQI
17AQI
18AQI
20AQI
34AQI
32AQI
34AQI
49AQI
33AQI
41AQI
31AQI
32AQI
37AQI
46AQI
36AQI
43AQI
29AQI
No. of days
202536AQI
Highest AQI recorded in
June46AQI
Lowest AQI recorded in
September29AQI
202437AQI
Highest AQI recorded in
January51AQI
Lowest AQI recorded in
March29AQI
202337AQI
Highest AQI recorded in
May46AQI
Lowest AQI recorded in
November26AQI
202239AQI
Highest AQI recorded in
July53AQI
Lowest AQI recorded in
November27AQI
202137AQI
Highest AQI recorded in
March44AQI
Lowest AQI recorded in
November29AQI
202033AQI
Highest AQI recorded in
March43AQI
Lowest AQI recorded in
December27AQI
Most & Least Polluted Years Over the Last 6 Years
Los Herran's annual 2025 AQI (36) shows an average percentage change of -1.08% (improved AQI) compared to previous years: 2020 (33), 2021 (37), 2022 (39), 2023 (37), 2024 (37).