Usurbil, Donostia, Basque Country, 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
Usurbil, Donostia, Basque Country, Spain
AQI Trends: Highest and Lowest
Same Day Analysis (2nd August):
On this day, AQI across the 5 years varied significantly: 2026 ranks 1st highest AQI at 31 of Good air quality on the same day.
Day & Night AQI Trend: 2nd Aug - 3rd Aug 2026
Usurbil, Donostia, Basque Country, Spain
6 AM2nd Aug 2026
9 PM
5 AM3rd Aug 2026
40AQI
23AQI
46AQI
25AQI
In the last 24 hours,
Usurbil's AQI reached its highest point of 46 at 3 AM during the Night, while the lowest point, 23, was recorded at 6 AM during the Day between 2nd Aug and 3rd Aug 2026.
Day & Night AQI Trend : Jul - Aug 2026
Usurbil, Donostia, Basque Country, Spain
21°C15/28°C
24°C17/33°C
23°C18/28°C
21°C17/26°C
22°C17/27°C
22°C18/28°C
23°C17/30°C
26°C19/35°C
21°C18/26°C
22°C17/28°C
21°C17/26°C
21°C17/25°C
20°C18/23°C
20°C17/25°C
21°C17/26°C
22°C17/27°C
20°C16/25°C
21°C15/27°C
21°C16/27°C
21°C16/27°C
20°C17/23°C
19°C17/22°C
20°C15/23°C
22°C14/31°C
23°C19/29°C
21°C19/25°C
21°C18/23°C
21°C17/25°C
20°C15/26°C
20°C17/25°C
46AQI
36AQI
43AQI
38AQI
2026 Days Vs Air Quality
Usurbil, Donostia, Basque Country, Spain
91%
192
9%
19
Total number of days with different AQI categories in last 215 days in 2026 (150 days remaining)
Under WHO’s Safe Air Quality Limits: 91%
Health Risk Level:
Very Low
In 2026, 91% of 215 days were within WHO’s safe air quality limits. The risk of health issues is Very Low, but health impacts are still unclear.
Annual Air Quality Insights
Usurbil, Donostia, Basque Country, Spain
AQI levels in 2026
Jan.
Feb.
Mar.
Apr.
May
Jun.
Jul.
Aug.
Sep.
Oct.
Nov.
Dec.
47AQI (US)
44AQI (US)
44AQI (US)
40AQI (US)
51AQI (US)
35AQI (US)
37AQI (US)
17AQI (US)
17AQI (US)
25AQI (US)
25AQI (US)
11AQI (US)
17AQI (US)
30AQI (US)
23AQI (US)
13AQI (US)
31AQI (US)
28AQI (US)
21AQI (US)
22AQI (US)
11AQI (US)
32AQI (US)
36AQI (US)
32AQI (US)
37AQI (US)
42AQI (US)
32AQI (US)
32AQI (US)
44AQI (US)
38AQI (US)
48AQI (US)
59AQI (US)
48AQI (US)
14AQI (US)
25AQI (US)
40AQI (US)
23AQI (US)
20AQI (US)
32AQI (US)
42AQI (US)
53AQI (US)
55AQI (US)
32AQI (US)
24AQI (US)
47AQI (US)
33AQI (US)
28AQI (US)
33AQI (US)
22AQI (US)
28AQI (US)
36AQI (US)
29AQI (US)
33AQI (US)
42AQI (US)
38AQI (US)
46AQI (US)
63AQI (US)
45AQI (US)
16AQI (US)
28AQI (US)
54AQI (US)
42AQI (US)
59AQI (US)
67AQI (US)
29AQI (US)
29AQI (US)
24AQI (US)
30AQI (US)
24AQI (US)
36AQI (US)
18AQI (US)
34AQI (US)
15AQI (US)
20AQI (US)
32AQI (US)
34AQI (US)
27AQI (US)
28AQI (US)
28AQI (US)
39AQI (US)
45AQI (US)
38AQI (US)
57AQI (US)
47AQI (US)
17AQI (US)
21AQI (US)
27AQI (US)
25AQI (US)
23AQI (US)
38AQI (US)
29AQI (US)
20AQI (US)
26AQI (US)
27AQI (US)
40AQI (US)
22AQI (US)
17AQI (US)
44AQI (US)
53AQI (US)
42AQI (US)
34AQI (US)
9AQI (US)
24AQI (US)
27AQI (US)
28AQI (US)
29AQI (US)
27AQI (US)
27AQI (US)
30AQI (US)
52AQI (US)
28AQI (US)
30AQI (US)
38AQI (US)
26AQI (US)
28AQI (US)
37AQI (US)
36AQI (US)
22AQI (US)
31AQI (US)
28AQI (US)
18AQI (US)
15AQI (US)
24AQI (US)
26AQI (US)
23AQI (US)
23AQI (US)
18AQI (US)
17AQI (US)
18AQI (US)
22AQI (US)
20AQI (US)
26AQI (US)
36AQI (US)
35AQI (US)
38AQI (US)
41AQI (US)
41AQI (US)
40AQI (US)
46AQI (US)
45AQI (US)
46AQI (US)
39AQI (US)
29AQI (US)
51AQI (US)
49AQI (US)
42AQI (US)
25AQI (US)
22AQI (US)
27AQI (US)
24AQI (US)
23AQI (US)
23AQI (US)
18AQI (US)
22AQI (US)
22AQI (US)
22AQI (US)
15AQI (US)
19AQI (US)
21AQI (US)
23AQI (US)
22AQI (US)
21AQI (US)
47AQI (US)
31AQI (US)
33AQI (US)
33AQI (US)
32AQI (US)
31AQI (US)
22AQI (US)
65AQI (US)
61AQI (US)
53AQI (US)
62AQI (US)
45AQI (US)
36AQI (US)
26AQI (US)
22AQI (US)
22AQI (US)
12AQI (US)
16AQI (US)
21AQI (US)
21AQI (US)
30AQI (US)
31AQI (US)
53AQI (US)
46AQI (US)
37AQI (US)
33AQI (US)
38AQI (US)
39AQI (US)
46AQI (US)
43AQI (US)
37AQI (US)
34AQI (US)
39AQI (US)
48AQI (US)
50AQI (US)
49AQI (US)
29AQI (US)
30AQI (US)
52AQI (US)
49AQI (US)
46AQI (US)
45AQI (US)
39AQI (US)
50AQI (US)
54AQI (US)
33AQI (US)
31AQI (US)
38AQI (US)
31AQI (US)
31AQI (US)
36AQI (US)
33AQI (US)
30AQI (US)
31AQI (US)
31AQI (US)
38AQI (US)
35AQI (US)
No. of days
202633AQI (US)
Highest AQI (US) recorded in
July38AQI (US)
Lowest AQI (US) recorded in
April30AQI (US)
202538AQI (US)
Highest AQI (US) recorded in
October52AQI (US)
Lowest AQI (US) recorded in
September28AQI (US)
202435AQI (US)
Highest AQI (US) recorded in
January42AQI (US)
Lowest AQI (US) recorded in
October31AQI (US)
202340AQI (US)
Highest AQI (US) recorded in
February58AQI (US)
Lowest AQI (US) recorded in
November31AQI (US)
202239AQI (US)
Highest AQI (US) recorded in
January49AQI (US)
Lowest AQI (US) recorded in
November32AQI (US)
202136AQI (US)
Highest AQI (US) recorded in
March46AQI (US)
Lowest AQI (US) recorded in
July28AQI (US)
202033AQI (US)
Highest AQI (US) recorded in
September38AQI (US)
Lowest AQI (US) recorded in
June25AQI (US)
Most & Least Polluted Years Over the Last 7 Years
Usurbil's annual 2026 AQI (US) (33) shows an average percentage change of -10.01% (improved AQI (US)) compared to previous years: 2020 (33), 2021 (36), 2022 (39), 2023 (40), 2024 (35), 2025 (38).