Castile, Gijon, Asturias, Spain Historical Air Quality Analysis
Dive into detailed Air Quality Insights with historical data, monthly patterns, and yearly trends at your fingertips!
August Air Quality Analysis
Castile, Gijon, Asturias, Spain
AQI Trends: Highest and Lowest
Same Day Analysis (3rd August ):
On this day, AQI across the 5 years varied significantly: 2025 ranks 2nd highest AQI at 28 of Good air quality, showing improvement over 2021 on the same day.
Download 2024 Annual Data
World Air Quality Report

Day & Night AQI Trend: 3rd Aug - 4th Aug 2025
Castile, Gijon, Asturias, Spain
7 AM3rd Aug 2025
9 PM
6 AM4th Aug 2025
34AQI
26AQI
29AQI
25AQI
In the last 24 hours,
Castile's AQI reached its highest point of 34 at 4 PM during the Day, while the lowest point, 25, was recorded at 6 AM during the Night between 3rd Aug and 4th Aug 2025.
Day & Night AQI Trend : Jul - Aug 2025
Castile, Gijon, Asturias, Spain
20°C17/24°C
19°C15/23°C
19°C17/21°C
18°C15/22°C
19°C14/24°C
20°C15/26°C
19°C15/23°C
20°C16/24°C
19°C16/23°C
19°C15/22°C
19°C13/23°C
20°C15/26°C
20°C16/24°C
19°C16/21°C
20°C16/24°C
19°C15/24°C
18°C13/23°C
18°C13/24°C
19°C16/23°C
18°C15/21°C
19°C15/22°C
18°C13/23°C
19°C13/24°C
19°C15/23°C
20°C17/23°C
19°C15/23°C
19°C15/23°C
19°C14/23°C
19°C16/23°C
20°C16/24°C
--°C/°C
31AQI
31AQI
30AQI
30AQI
2025 Days Vs Air Quality
Castile, Gijon, Asturias, Spain
82%
177
18%
38
Total number of days with different AQI categories in last 216 days in 2025 (149 days remaining)
Under WHO’s Safe Air Quality Limits: 82%
Health Risk Level:
Low
In 2025, 82% of 216 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
Castile, Gijon, Asturias, Spain
AQI levels in 2025
Jan.
Feb.
Mar.
Apr.
May
Jun.
Jul.
Aug.
Sep.
Oct.
Nov.
Dec.
67AQI
71AQI
52AQI
42AQI
26AQI
31AQI
35AQI
34AQI
36AQI
41AQI
38AQI
37AQI
39AQI
49AQI
52AQI
54AQI
55AQI
56AQI
60AQI
58AQI
56AQI
53AQI
47AQI
61AQI
48AQI
39AQI
36AQI
34AQI
29AQI
41AQI
43AQI
38AQI
36AQI
31AQI
45AQI
50AQI
52AQI
51AQI
44AQI
42AQI
42AQI
44AQI
37AQI
39AQI
44AQI
52AQI
56AQI
51AQI
57AQI
58AQI
58AQI
55AQI
46AQI
46AQI
51AQI
44AQI
44AQI
39AQI
36AQI
35AQI
35AQI
39AQI
45AQI
51AQI
49AQI
44AQI
34AQI
31AQI
31AQI
33AQI
37AQI
32AQI
30AQI
30AQI
30AQI
33AQI
38AQI
40AQI
35AQI
28AQI
31AQI
31AQI
33AQI
35AQI
31AQI
36AQI
41AQI
36AQI
34AQI
35AQI
39AQI
38AQI
35AQI
36AQI
30AQI
30AQI
29AQI
42AQI
50AQI
49AQI
51AQI
51AQI
46AQI
37AQI
27AQI
23AQI
22AQI
26AQI
24AQI
24AQI
26AQI
28AQI
28AQI
29AQI
34AQI
32AQI
30AQI
33AQI
35AQI
40AQI
32AQI
34AQI
30AQI
27AQI
26AQI
23AQI
26AQI
32AQI
33AQI
32AQI
30AQI
30AQI
29AQI
28AQI
28AQI
38AQI
41AQI
46AQI
38AQI
36AQI
38AQI
29AQI
29AQI
30AQI
31AQI
26AQI
28AQI
34AQI
37AQI
43AQI
31AQI
30AQI
28AQI
28AQI
32AQI
31AQI
29AQI
28AQI
38AQI
54AQI
57AQI
60AQI
61AQI
56AQI
50AQI
47AQI
35AQI
37AQI
44AQI
52AQI
63AQI
58AQI
56AQI
52AQI
55AQI
52AQI
45AQI
39AQI
39AQI
43AQI
51AQI
49AQI
35AQI
34AQI
33AQI
33AQI
32AQI
30AQI
27AQI
27AQI
30AQI
36AQI
41AQI
41AQI
34AQI
44AQI
41AQI
42AQI
37AQI
30AQI
27AQI
24AQI
22AQI
22AQI
22AQI
30AQI
38AQI
40AQI
29AQI
27AQI
24AQI
22AQI
26AQI
24AQI
28AQI
46AQI
46AQI
36AQI
34AQI
32AQI
45AQI
32AQI
26AQI
No. of days
202538AQI
Highest AQI recorded in
February46AQI
Lowest AQI recorded in
August26AQI
202429AQI
Highest AQI recorded in
December50AQI
Lowest AQI recorded in
July21AQI
202326AQI
Highest AQI recorded in
May31AQI
Lowest AQI recorded in
November22AQI
202239AQI
Highest AQI recorded in
January59AQI
Lowest AQI recorded in
December23AQI
202144AQI
Highest AQI recorded in
December55AQI
Lowest AQI recorded in
August34AQI
202041AQI
Highest AQI recorded in
November52AQI
Lowest AQI recorded in
March32AQI
Most & Least Polluted Years Over the Last 6 Years
Castile's annual 2025 AQI (38) shows an average percentage change of 11.7% (worsened AQI) compared to previous years: 2020 (41), 2021 (44), 2022 (39), 2023 (26), 2024 (29).